perf(maintenance): evaluate each unused-prompt protection once (#586)

Duplicate prompts, unused components, missing links, workflow storage and
rotated logs now record one protected row per kept item, in the review's
wording, and the job report lists every one of them. Kept links and log
files keep their path. The duplicate file cleanup records each copy the
review protected in its Kept group.

.github/dependabot.yml

@@ -17,11 +17,6 @@ updates:
       prefix: "deps(pip)"
       include: "scope"
     rebase-strategy: "auto"
-    # These floors follow ComfyUI's requirements.txt, never the newest release.
-    ignore:
-      - dependency-name: "Pillow"
-      - dependency-name: "aiohttp"
-      - dependency-name: "numpy"
     # Optional: group non-breaking updates to reduce PR noise
     groups:
       python-minor-and-patch:

.github/workflows/test.yml

@@ -80,7 +80,7 @@ jobs:
     # pulled them from Ubuntu's apt mirror on every run, and three runs (#349, #378, #382) crawled at
     # ~26 kB/s for 11-12 minutes until the job hit its limit after every test had passed.
     container:
-      image: mcr.microsoft.com/playwright:v1.64.1-noble@sha256:47b510dd9230bf0b9bfc9b20102241e577ea7a99334ab4c3ca19f19770e9b8ea
+      image: mcr.microsoft.com/playwright:v1.64.1-noble
       options: --user 1001
     timeout-minutes: 24
     steps:

.github/workflows/viewerjs-check.yml

@@ -53,7 +53,7 @@ jobs:
     # same pinned Playwright image as local runs (tag = @playwright/test in tools/vendor/package-lock.json;
     # tests/vendor/browser-image.test.mjs checks it). Browsers and fonts come from the image.
     container:
-      image: mcr.microsoft.com/playwright:v1.64.1-noble@sha256:47b510dd9230bf0b9bfc9b20102241e577ea7a99334ab4c3ca19f19770e9b8ea
+      image: mcr.microsoft.com/playwright:v1.64.1-noble
       options: --user 1001
     timeout-minutes: 20
     # Public-repo ubuntu-latest runners have 4 vCPUs: three Playwright workers, each with its own test
@@ -121,7 +121,7 @@ jobs:
     runs-on: ubuntu-latest
     # Same image as the shards: the raw files name sources by the container's workspace path.
     container:
-      image: mcr.microsoft.com/playwright:v1.64.1-noble@sha256:47b510dd9230bf0b9bfc9b20102241e577ea7a99334ab4c3ca19f19770e9b8ea
+      image: mcr.microsoft.com/playwright:v1.64.1-noble
       options: --user 1001
     timeout-minutes: 10
     steps:
@@ -192,7 +192,7 @@ jobs:
     # same pinned Playwright image as local runs (tag = @playwright/test in tools/vendor/package-lock.json;
     # tests/vendor/browser-image.test.mjs checks it). Browsers and fonts come from the image.
     container:
-      image: mcr.microsoft.com/playwright:v1.64.1-noble@sha256:47b510dd9230bf0b9bfc9b20102241e577ea7a99334ab4c3ca19f19770e9b8ea
+      image: mcr.microsoft.com/playwright:v1.64.1-noble
       options: --user 1001
     timeout-minutes: 20
     # Public-repo ubuntu-latest runners have 4 vCPUs: three Playwright workers, each with its own test

TESTING.md

@@ -111,11 +111,8 @@ distributions, browser system dependencies may need manual installation. For a
 quick browser run, use `test:workflows -- --project chromium`.
 
 CI runs the browser jobs inside the pinned image
-`mcr.microsoft.com/playwright:v<@playwright/test version>-noble@sha256:<digest>`
+`mcr.microsoft.com/playwright:v<@playwright/test version>-noble`
 (`tests/vendor/browser-image.test.mjs` keeps the tag in step with the lockfile).
-The digest is part of the pin, because Microsoft re-pushes tags: `v1.64.1-noble`
-moved from Node 24 to Node 26 on 2026-11-01 (#609). To bump it, change the tag and
-digest together and check the new image's Node against the Node 24 guard.
 Concept comparisons measure geometry, and geometry follows the fonts a browser
 falls back to: the concept names Inter, which neither the image nor a stock
 runner ships. On a plain `ubuntu-latest` runner the fallback is DejaVu Sans,
@@ -5902,73 +5899,6 @@ are closed before `os.replace`; renames stay inside one folder; folder identity
 folder are refused. The browser test server closes its own log handlers before its temp
 root (which now holds the logs) is removed.
 
-### Thumbnail location contract (#320)
-
-Previews live in each source's `thumbnails/` (the default) or in one folder, `<folder>/<source key>/…`. Every reader,
-writer and remover asks `py/api/preview_store.py`; `tests/test_preview_store.py` fails on a `thumbnails` path join
-anywhere else. The setting is `thumbnails.location` in config.json, and only the Move thumbnails job writes it: POST
-`/settings` answers 409 `location-needs-move`.
-
-- **Keys and marker.** A key is a slug plus a hash of the source's identity. The folder's
-  `.promptmanager-thumbnails.json` stores each key with its identity and install. Only a single `<slug>-<hex>` name
-  is ever joined onto the folder, and anything else in a marker is dropped. Every write and delete passes
-  `preview_store.may_write`: below a key folder, with no link, junction or reparse point on the way
-  (`tests/test_preview_store_folder.py`, including tampered markers).
-- **Unavailable.** A folder is unavailable when it is missing, is a link, holds no marker or holds another
-  folder's marker. A probe checks it every 5 s, and a store call that fails or stalls marks it at once. While it is
-  unavailable:
-  - originals are served and nothing is written anywhere;
-  - generate, convert, clear and prune answer 409 `location-unavailable`;
-  - the folder is never made again except by Recreate folder.
-
-  The configured location is in force before any request. A bad value is `invalid`, never a fall-back to the
-  sources.
-- **Move thumbnails.** The job is a `thumbnails` job with `scope.mode` `move` (`tests/test_thumbnail_move.py`). It
-  runs in this order:
-  1. The review answers `POST /images/thumbnails/plan`; not enough space answers 507.
-  2. A token starts the job.
-  3. Automatic previews are held.
-  4. Copies run on the job pool in chunks of 2 or 4 files, each with its size checked and its mtime rounded up to
-     2 s.
-  5. One config commit makes the switch and records the old stores under `cleanup`. The job cannot be cancelled
-     from here.
-  6. The old copies are removed.
-
-  If it fails or is cancelled before the switch, nothing changes. A crash leaves
-  `<data>/data/thumbnail-move.json`, which the next start undoes. Old copies still held open are removed by the
-  next start's "Move thumbnails (finishing)" job. Leaving a folder also removes the previews of this install's
-  sources that are no longer listed (Q320-8).
-- **Remove thumbnails of removed sources** (`scope.mode` `prune`). It is offered in Thumbnail maintenance only in
-  folder mode, and it touches only this install's keys.
-- **Page tests.** `tests/browser/workspace-thumbnail-location.spec.mjs` covers the row, both moves, the in-place
-  refusal, the confirmation, the notice with Recreate and with Use this folder. The legacy gallery runs once in
-  folder mode (`workflows.spec.mjs`). The hooks are `tests/browser/thumbnail_location_fixture.py`.
-
-Beyond the concept, against the approved static mock `docs/egm/post-3.4.1/320-mock`:
-
-- D196: the Thumbnail location row in System › Sources & scans, after Thumbnail generation.
-  - The status line is "Now: inside each source." or "Now: one folder, <path>.". It does not show the mock's
-    "(3 sources, 8,512 thumbnails)" counts, because counting means walking every preview on each view. It says
-    "Using the default folder next to your library." and names old copies that wait to be removed.
-- D197: the Move thumbnails review uses the shared review.
-  - A grid value may be a lead sentence with a list (`[lead, items]`).
-  - Sources no longer listed appear under "Removed after the move", where the mock has a "Not moved" row
-    (maintainer answer to Q320-8: remove).
-  - The Free space line is "<size> free", without naming the disk.
-- D198: Activity's view of `mode: move` and `mode: prune`.
-  - Tiles for a move: Moved, Already there, Left in place, Errors. Tiles for a prune: Removed, Left in place,
-    Errors.
-  - The step line under the bar is `#job-phase`.
-  - Cancel shows only until the switch.
-- D199: the unavailable notice on Overview and Sources & scans.
-  - Recreate folder appears for a missing folder, after a confirmation.
-  - Use this folder appears for another folder's marker.
-  - Change location focuses the row; on Overview it opens Sources & scans.
-- D200: Thumbnail maintenance's "Remove thumbnails of removed sources" scope, with the plan line and a grid of
-  key folders.
-- D201: Move library's review adds "Thumbnails: Stay in <path>. Move them in System › Sources & scans." in folder
-  mode.
-
 ### Backup and restore contract (#249 System S8)
 
 A restore is staged, then published (`database/restore_stage.py`). The upload is

__init__.py

@@ -92,21 +92,10 @@ try:
     routes = config.routes
     api = PromptManagerAPI()
     api.add_routes(routes)
-
-    # The thumbnail location's startup check (#320), then the temp files of
-    # preview writes a crash interrupted (#317), off the import path: the
-    # walk may cover a large thumbnails folder.
-    # #320: the configured thumbnail location is in force before any request
-    # (no I/O); the thread below checks it.
-    api.use_preview_location()
-
-    def _preview_startup():
-        api.start_preview_location()
-        api.recover_thumbnail_move()  # an interrupted move, before the sweep
-        api.sweep_thumbnail_temps()
-
+    # Temp files of preview writes a crash interrupted (#317), off the
+    # import path: the walk may cover a large thumbnails folder.
     threading.Thread(
-        target=_preview_startup,
+        target=api.sweep_thumbnail_temps,
         name="PromptManagerPreviewTempSweep",
         daemon=True,
     ).start()
@@ -119,8 +108,6 @@ try:
         # Build each output root's Images listing once the server's loop runs,
         # so the first open does not wait for the walk (#348).
         host_app.on_startup.append(api.warm_gallery_listings)
-        # #320: old thumbnails a move left to remove, once it is checked.
-        host_app.on_startup.append(api.finish_thumbnail_move)
     if host_app is not None and hasattr(host_app, "on_shutdown"):
         # Open Needs review change streams end before the server waits on them.
         host_app.on_shutdown.append(api.close_review_events)
@@ -461,11 +448,8 @@ except Exception as e:
 
 __all__ = ["NODE_CLASS_MAPPINGS", "NODE_DISPLAY_NAME_MAPPINGS", "WEB_DIRECTORY"]
 
-# One startup line, printed at import on purpose: it is the package's banner on
-# stdout, as ComfyUI's other custom nodes print theirs. Not a log record: the
-# console log handler hides INFO by default, so a logger would drop it. ASCII
-# only: a Windows console using a legacy code page cannot print emoji, and a
-# UnicodeEncodeError here would abort loading the node.
+# One startup line. ASCII only: a Windows console using a legacy code page
+# cannot print emoji, and a UnicodeEncodeError here would abort loading the node.
 print(
     f"\033[94m[ComfyUI-PromptManager] Version:\033[0m {get_version()}"
     f" - {len(NODE_CLASS_MAPPINGS)} tools loaded"

database/library_move.py

@@ -78,10 +78,6 @@ MESSAGES = {
     ),
     "same-folder": "The new folder is the node folder itself.",
     "target-invalid": "The new folder cannot hold the library.",
-    "data-dir-served": (
-        "The new folder is inside Prompt Manager's thumbnail folder. Nothing was "
-        "moved."
-    ),
     "target-has-library": (
         "The new folder already holds a Prompt Manager library. Nothing was moved."
     ),

py/api/__init__.py

@@ -11,7 +11,6 @@ Split into domain-specific mixins for maintainability:
 - JobRoutesMixin: the session job registry behind Activity (py/api/jobs.py)
 - ImageTagJobsMixin: bulk Add tags / Auto-tag as image-tags jobs
 - ThumbnailJobsMixin: thumbnail plan, thumbnail job and the gallery stream on it
-- ThumbnailLocationMixin: the thumbnail location check and payloads (#320)
 - ThumbnailConvertMixin: Convert outdated thumbnails (#317), a thumbnail job mode
 - AutoThumbnailMixin: previews made on first view, on capture and after a scan
 - ReviewRoutesMixin: the Needs review queue, item detail and decisions
@@ -61,11 +60,6 @@ from .settings_routes import SettingsRoutesMixin
 from .job_routes import JobRoutesMixin
 from .image_tag_jobs import ImageTagJobsMixin
 from .thumbnail_jobs import ThumbnailJobsMixin
-from .thumbnail_location import ThumbnailLocationMixin
-from .thumbnail_move import ThumbnailMoveMixin
-from .thumbnail_move_plan import ThumbnailMovePlanMixin
-from .thumbnail_move_recovery import ThumbnailMoveRecoveryMixin
-from .thumbnail_prune import ThumbnailPruneMixin
 from .thumbnail_convert import ThumbnailConvertMixin
 from .thumbnail_auto import AutoThumbnailMixin
 from .system import SystemRoutesMixin
@@ -344,11 +338,6 @@ class PromptManagerAPI(
     JobRoutesMixin,
     ImageTagJobsMixin,
     ThumbnailJobsMixin,
-    ThumbnailLocationMixin,
-    ThumbnailMovePlanMixin,
-    ThumbnailMoveMixin,
-    ThumbnailMoveRecoveryMixin,
-    ThumbnailPruneMixin,
     ThumbnailConvertMixin,
     AutoThumbnailMixin,
     SystemRoutesMixin,
@@ -727,7 +716,6 @@ class PromptManagerAPI(
         # ── Register domain-specific routes from mixins ───────────────
 
         self._register_pair_routes(routes)
-        self._register_thumbnail_move_routes(routes)
         self._register_library_routes(routes)
         self._register_library_delete_routes(routes)
         self._register_vocabulary_routes(routes)
@@ -864,11 +852,20 @@ class PromptManagerAPI(
                         f"{url_quote(rel_path.as_posix(), safe='/')}"
                     )
 
-                    # Any preview the file owns, the current format first
-                    # (#317); no store I/O here in folder mode (#320).
-                    from .images import listing_thumbnail_url
+                    # Any preview the file owns, the current format first (#317)
+                    from . import thumbnail_settings
+                    from .prompts import thumbnail_url_for
 
-                    thumbnail_url = listing_thumbnail_url(output_path, rel_path)
+                    existing = thumbnail_settings.existing_thumbnail(
+                        output_path, rel_path
+                    )
+                    thumbnail_url = None
+                    if existing is not None:
+                        thumb_rel = (
+                            thumbnail_settings.thumbnail_stem_rel(rel_path)
+                            + existing.suffix
+                        )
+                        thumbnail_url = thumbnail_url_for(thumb_rel, existing)
                     if thumbnail_url:
                         image["thumbnail_url"] = thumbnail_url
                     break  # Found matching root, stop searching

py/api/autotag_routes.py

@@ -19,8 +19,8 @@ from .jobs import (
 )
 
 from .maintenance import disk_plan
-from .images import listing_thumbnail_url
-from . import preview_store
+from .prompts import thumbnail_url_for
+from . import thumbnail_settings
 from .. import model_gate
 
 try:
@@ -1486,21 +1486,23 @@ class AutotagRoutesMixin:
             files = await self._run_in_executor(
                 self._without_removed, output_path, files
             )
-            location = preview_store.current()
-            if location.mode == preview_store.FOLDER_MODE:
-                has_thumbnails = location.available  # no store I/O here (#320)
-            else:
-                store = preview_store.store_dir(output_path)
-                has_thumbnails = store is not None and store.is_dir()
+            has_thumbnails = (output_path / "thumbnails").is_dir()
 
             images = []
             for image_path in files:
                 rel_path = image_path.relative_to(output_path)
                 thumbnail_url = None
                 if has_thumbnails:
-                    # Any preview the file owns, the current format first
-                    # (#317); in folder mode without store I/O (#320).
-                    thumbnail_url = listing_thumbnail_url(output_path, rel_path)
+                    # Any preview the file owns, the current format first (#317)
+                    existing = thumbnail_settings.existing_thumbnail(
+                        output_path, rel_path
+                    )
+                    if existing is not None:
+                        thumb_rel = (
+                            thumbnail_settings.thumbnail_stem_rel(rel_path)
+                            + existing.suffix
+                        )
+                        thumbnail_url = thumbnail_url_for(thumb_rel, existing)
                 images.append(
                     {
                         "filename": image_path.name,

py/api/history_current.py

@@ -15,10 +15,10 @@ from typing import BinaryIO
 
 from aiohttp import web
 
-from . import preview_store, thumbnail_settings
+from . import thumbnail_settings
 from .images import _canonical, _public_path, SERVABLE_EXTENSIONS, VIDEO_EXTENSIONS
 from .images import in_trash_below_roots
-from .images import existing_media_thumbnail, media_preview_path
+from .images import existing_media_thumbnail, media_thumbnail_rel
 
 try:
     from ...utils.execution_outputs import (
@@ -244,36 +244,19 @@ def resolve_current_candidate(
         return _unavailable("temporary_unavailable", error=True)
 
 
-def _target_authorized(target, namespace, scope, store_root=None) -> bool:
-    """A preview in the thumbnail folder (#320, folder mode) is authorized by
-    the store of its source (``preview_store.owns``: inside the key folder,
-    no link); everything else by the output namespace and the roots."""
-    if (
-        store_root is not None
-        and preview_store.current().mode == preview_store.FOLDER_MODE
-    ):
-        return preview_store.owns(store_root, target)
-    return _authorized(target, namespace, scope)
-
-
 def _open_current_target(
-    target: Path,
-    namespace: Path,
-    scope: CurrentOutputScope,
-    preview: bool = False,
-    store_root: Path | None = None,
+    target: Path, namespace: Path, scope: CurrentOutputScope, preview: bool = False
 ) -> BinaryIO:
     """Open only the canonical target and verify authority against the actual handle.
 
-    A *preview* (a file under ``thumbnails/``) may also be JPEG XL (#317); in
-    folder mode it is authorized by the store of *store_root* (#320)."""
+    A *preview* (a file under ``thumbnails/``) may also be JPEG XL (#317)."""
     if _canonical(target) != target:
         raise CurrentLocationUnavailable("not_authorized", stale=True)
     if in_trash_below_roots(target, [namespace]):
         # Also at the open: the cover chooses its preview after the candidate
         # check, and a preview can be a link into a trash folder (#543).
         raise CurrentLocationUnavailable("missing")
-    if not _target_authorized(target, namespace, scope, store_root):
+    if not _authorized(target, namespace, scope):
         raise CurrentLocationUnavailable("not_authorized")
     suffix = target.suffix.lower()
     if suffix not in SERVABLE_EXTENSIONS and not (
@@ -306,7 +289,7 @@ def _open_current_target(
         if (
             _canonical(target) != target
             or (observed.st_dev, observed.st_ino) != (current.st_dev, current.st_ino)
-            or not _target_authorized(target, namespace, scope, store_root)
+            or not _authorized(target, namespace, scope)
         ):
             raise CurrentLocationUnavailable("not_authorized", stale=True)
         return os.fdopen(fd, "rb")
@@ -343,10 +326,12 @@ class _OpenedCurrentMedia:
 
 
 def _preview_writable(root: Path, preview: Path) -> bool:
-    """A preview may be written: the store of *root* and every link segment
-    of the preview's folder resolve inside it (the serve route's rule, #249;
-    ``preview_store.owns``)."""
-    return preview_store.owns(root, preview)
+    """A preview may be written: ``thumbnails`` and every link segment of the
+    preview's folder resolve inside *root* (the serve route's rule, #249)."""
+    folder = root / "thumbnails"
+    return _canonical(folder).is_relative_to(_canonical(root)) and _canonical(
+        preview
+    ).is_relative_to(_canonical(folder))
 
 
 def _is_jxl(path) -> bool:
@@ -396,12 +381,8 @@ def _cover_target(resolved, ensure_preview, placeholder, accepts_jxl):
         return _canonical(preview)
     if preview is not None:
         return _canonical(preview)
-    preview = media_preview_path(resolved.gallery_root, relative, create=True)
-    if (
-        ensure_preview is not None
-        and preview is not None
-        and _preview_writable(resolved.gallery_root, preview)
-    ):
+    preview = resolved.gallery_root / media_thumbnail_rel(relative)
+    if ensure_preview is not None and _preview_writable(resolved.gallery_root, preview):
         ensure_preview(target, preview, is_video)
     if is_video and placeholder is not None:
         return _placeholder_media(placeholder)
@@ -437,13 +418,7 @@ def _prepare_current_media(
             return chosen
         if chosen is not None:
             target, is_preview = chosen, True
-    handle = _open_current_target(
-        target,
-        resolved.namespace,
-        scope,
-        is_preview,
-        resolved.gallery_root if is_preview else None,
-    )
+    handle = _open_current_target(target, resolved.namespace, scope, is_preview)
     try:
         return _OpenedCurrentMedia(
             handle,

py/api/images.py

@@ -34,8 +34,7 @@ from .gallery_listing import (
     WalkOutcome,
     walk_root,
 )
-from . import preview_store, thumbnail_settings
-from .thumbnail_location import location_refusal
+from . import thumbnail_settings
 from .thumbnail_encode import (
     PREVIEW_HELD,
     EncoderClosed,
@@ -1069,24 +1068,13 @@ def _iter_media_files(output_path, max_files):
 
 
 def media_thumbnail_rel(rel_path, settings=None):
-    """``thumbnails/<rel>_thumb<ext>`` (POSIX URL text) for the media file
-    *rel_path*: the name the preview gets when it is written now (#317),
-    images and videos alike (``writer_settings``' extension). Where it is on
-    disk is ``media_preview_path``."""
+    """``thumbnails/<rel>_thumb<ext>`` (POSIX) for the media file *rel_path*:
+    the name the preview gets when it is written now (#317), images and
+    videos alike (``writer_settings``' extension)."""
     settings = settings or writer_settings()
     return thumbnail_settings.thumbnail_rel(rel_path, settings.extension)
 
 
-def media_preview_path(output_path, rel_path, settings=None, *, create=False):
-    """Where the preview of *rel_path* is written now (``preview_store``);
-    *create* for a writer (a new source gets its key). None when nothing
-    may be written (the thumbnail folder is unavailable)."""
-    settings = settings or writer_settings()
-    return preview_store.preview_path(
-        output_path, rel_path, settings.extension, create=create
-    )
-
-
 def existing_media_thumbnail(output_path, rel_path):
     """The existing preview *rel_path* owns that a listing or cover shows
     (the format written now first, then older ones), or None. The Images
@@ -1096,27 +1084,6 @@ def existing_media_thumbnail(output_path, rel_path):
     )
 
 
-def listing_thumbnail_url(output_path, rel_path):
-    """The thumbnail URL of an older listing (``_enrich_images``, the
-    auto-tag scan), or None. These run on the event loop: in folder mode
-    (#320) the store is never touched there, so the URL names the preview
-    as it is written now and the serve route finds or makes it off the loop
-    (None while the thumbnail folder is unavailable)."""
-    from .prompts import thumbnail_url_for
-
-    location = preview_store.current()
-    if location.mode == preview_store.FOLDER_MODE:
-        if not location.available:
-            return None
-        quoted = urllib.parse.quote(media_thumbnail_rel(rel_path), safe="/")
-        return f"/prompt_manager/images/serve/{quoted}"
-    existing = thumbnail_settings.existing_thumbnail(output_path, rel_path)
-    if existing is None:
-        return None
-    thumb_rel = thumbnail_settings.thumbnail_stem_rel(rel_path) + existing.suffix
-    return thumbnail_url_for(thumb_rel, existing)
-
-
 def media_thumbnail(output_path, rel_path, root_index, *, root_scope=None):
     """``(thumbnail_url, ready)`` for *rel_path* under *output_path* (a few
     blocking stats). The Images listing, the Needs review queue cards and the
@@ -2831,56 +2798,13 @@ class ImageRoutesMixin:
                     output_dirs[0], filepath, int(root_param), len(outputs)
                 )
 
-            # Preview text is mapped by the resolver (#320); any other text,
-            # ``Thumbnails/...`` media on a case-sensitive disk included,
-            # keeps the plain join.
-            preview_parts = (
-                tuple(filepath.split("/"))
-                if preview_store.is_preview_text(filepath)
-                else None
-            )
-            location = preview_store.current()
-            if location.mode == preview_store.FOLDER_MODE:
-                if preview_parts is None and await self._run_image(
-                    self._in_source_thumbnails, output_dirs, filepath
-                ):
-                    # Previews live in the thumbnail folder: anything else
-                    # under a source's thumbnails/ is a leftover (#320), in
-                    # any case on a case-insensitive disk.
-                    return _forbidden()
-                if preview_parts is not None:
-                    # Store I/O never runs on the event loop (a share may
-                    # stall): the lookup runs on the image pool.
-                    found = await self._run_image(
-                        self._find_preview, output_dirs, preview_parts, location
-                    )
-                    if found == "forbidden":
-                        return _forbidden()
-                    if found is not None:
-                        return self._file_response(found)
             for output_path in output_dirs:
-                if (
-                    preview_parts is not None
-                    and location.mode == preview_store.FOLDER_MODE
-                ):
-                    break  # looked up above
-                if preview_parts is None:
-                    image_path = output_path / filepath
-                else:
-                    image_path = preview_store.request_path(output_path, preview_parts)
-                    if image_path is None:
-                        continue
+                image_path = output_path / filepath
                 if not image_path.exists():
                     continue
-                # A symlink that points outside the root (a preview: outside
-                # the folder holding its store) is a hard deny, not a
-                # fall-through to the next root.
-                container = (
-                    output_path
-                    if preview_parts is None
-                    else preview_store.store_container(output_path)
-                )
-                if not _is_within(image_path, container):
+                # A symlink that points outside the root is a hard deny, not
+                # a fall-through to the next root.
+                if not _is_within(image_path, output_path):
                     return _forbidden()
                 if in_trash_below_roots(image_path, output_dirs):
                     return _file_not_found()
@@ -2906,48 +2830,6 @@ class ImageRoutesMixin:
                 {"success": False, "error": _safe_error(e)}, status=500
             )
 
-    @staticmethod
-    def _in_source_thumbnails(output_dirs, filepath):
-        """Whether *filepath* lies in a source's ``thumbnails`` folder: its
-        first part is ``thumbnails`` exactly, or another case of it that is
-        the same folder (a case-insensitive disk). ``Thumbnails/`` media on
-        a case-sensitive disk is another folder and stays served."""
-        first = filepath.split("/", 1)[0]
-        if first == "thumbnails":
-            return True
-        if first.casefold() != "thumbnails":
-            return False
-        for output_path in output_dirs:
-            spelled = output_path / first
-            cache = preview_store.source_folder(output_path)
-            try:
-                if spelled.is_dir() and cache.is_dir() and spelled.samefile(cache):
-                    return True
-            except OSError:
-                continue
-        return False
-
-    @staticmethod
-    def _find_preview(output_dirs, parts, location):
-        """The preview file *parts* names in folder mode, ``"forbidden"``
-        (it resolves out of its store or through a link) or None (blocking;
-        the first root whose store holds it, in ``_select_root`` order)."""
-        for output_path in output_dirs:
-            image_path = preview_store.request_path(output_path, parts, location)
-            if image_path is None:
-                continue
-            try:
-                with preview_store.store_io():
-                    if not os.path.lexists(image_path):
-                        continue
-                    if not preview_store.owns(output_path, image_path, location):
-                        return "forbidden"
-                    if image_path.is_file():
-                        return image_path
-            except OSError:
-                return None
-        return None
-
     def _is_recorded_media(self, path) -> bool:
         """Whether the database records ``path`` as a linked image.
 
@@ -3074,9 +2956,6 @@ class ImageRoutesMixin:
         data, error = await _json_body_or_error(request)
         if error is not None:
             return error
-        refused = location_refusal()
-        if refused is not None:
-            return refused
         return await self._run_held(
             THUMBNAILS_JOB_KIND,
             THUMBNAIL_GENERATION_TITLE,
@@ -3109,7 +2988,6 @@ class ImageRoutesMixin:
         """Blocking thumbnail generation loop (run in executor)."""
         settings = writer_settings(settings)
         start = _time.monotonic()
-        thumbnails_dir = preview_store.given_store(output_path, thumbnails_dir)
         plan = self._plan_thumbnails(output_path, thumbnails_dir, settings=settings)
         payload = self._execute_thumbnail_plan(plan, settings, start)
         payload["thumbnails_path"] = _public_path(thumbnails_dir)
@@ -3122,8 +3000,7 @@ class ImageRoutesMixin:
         start = _time.monotonic()
         plan = self._plan_gallery_thumbnails(output_dirs, settings=settings)
         payload = self._execute_thumbnail_plan(plan, settings, start)
-        store = preview_store.store_dir(output_dirs[0])
-        payload["thumbnails_path"] = None if store is None else _public_path(store)
+        payload["thumbnails_path"] = _public_path(output_dirs[0] / "thumbnails")
         return payload
 
     def _execute_thumbnail_plan(self, plan: dict, settings, start: float) -> dict:
@@ -3166,12 +3043,9 @@ class ImageRoutesMixin:
             if stop is not None and stop():
                 break
             root = Path(root)
-            store = preview_store.ensure_store(root)
-            if store is None:
-                continue  # the thumbnail folder is unavailable
             plan = self._plan_thumbnails(
                 root,
-                store,
+                root / "thumbnails",
                 mode=mode,
                 stop=stop,
                 settings=settings,
@@ -3210,8 +3084,6 @@ class ImageRoutesMixin:
                     "format": writer_settings().format,
                     # Files whose automatic preview failed this session (#249).
                     "failed": self._auto_thumbnail_failures(),
-                    # #320: where previews live (no path here, D6A).
-                    "location": self._thumbnail_location_payload(with_path=False),
                     "collection_id": hashlib.sha256(collection.encode()).hexdigest()[
                         :16
                     ],
@@ -3257,11 +3129,9 @@ class ImageRoutesMixin:
         """
         settings = writer_settings(settings)
         output_path = Path(output_path)
-        thumbnails_dir = preview_store.given_store(output_path, thumbnails_dir)
+        thumbnails_dir = Path(thumbnails_dir)
         plan = {key: 0 for key in _PLAN_COUNTS}
         plan.update(targets=[], fresh_files=[])
-        if thumbnails_dir is None:
-            return plan  # the thumbnail folder is unavailable
         folders = {}
         removed = self._removal_check_under(output_path)
         for src in _iter_media_files(output_path, MAX_GALLERY_FILES):
@@ -3351,9 +3221,6 @@ class ImageRoutesMixin:
             "dir": src.parent.name,
             "type": "video" if is_video else "image",
         }
-        # Taken when the write starts: a thumbnail location switched since
-        # then drops the write at its rename (#320).
-        guard = preview_store.write_guard(guard)
         dst = Path(dst)
         if dst.suffix != settings.extension:
             dst = dst.with_suffix(settings.extension)
@@ -3364,7 +3231,7 @@ class ImageRoutesMixin:
                 return {**result, "action": "error", "error": "File no longer exists"}
             if not rebuild and _thumbnail_is_fresh(src, dst):
                 return {**result, "action": "skipped", "path": str(dst)}
-            preview_store.make_parent(dst)
+            dst.parent.mkdir(parents=True, exist_ok=True)
             if is_video:
                 made = self._generate_video_thumbnail(
                     src,
@@ -3569,12 +3436,8 @@ class ImageRoutesMixin:
 
         Invalid thumbnail directories return 400; unavailable gallery roots
         return 404, and unexpected filesystem failures return 500. Holds the
-        registry as guarded work, like generation. Refused (409) while the
-        thumbnail folder is unavailable (#320).
+        registry as guarded work, like generation.
         """
-        refused = location_refusal()
-        if refused is not None:
-            return refused
         return await self._run_held(
             THUMBNAILS_JOB_KIND,
             THUMBNAIL_CLEAR_TITLE,
@@ -3638,12 +3501,8 @@ class ImageRoutesMixin:
             self.logger.debug(f"No roots to sweep for preview temp files: {exc}")
             return 0
         for output_path in output_dirs:
-            folder = preview_store.store_dir(output_path)
-            if (
-                folder is None
-                or preview_store.store_is_link(folder)
-                or not folder.is_dir()
-            ):
+            folder = Path(output_path) / "thumbnails"
+            if folder.is_symlink() or not folder.is_dir():
                 continue
             removed += sweep_stray_temps(folder)[0]
         if removed:
@@ -3661,16 +3520,13 @@ class ImageRoutesMixin:
         directories = []
         for output_path in output_dirs:
             output_path = Path(output_path)
-            thumbnails_dir = preview_store.store_dir(output_path)
-            if thumbnails_dir is None:
-                continue
+            thumbnails_dir = output_path / "thumbnails"
             if not thumbnails_dir.exists() and not thumbnails_dir.is_symlink():
                 continue
-            container = preview_store.store_container(output_path)
             if (
-                preview_store.store_is_link(thumbnails_dir)
-                or not _is_within(thumbnails_dir, container)
-                or _canonical(thumbnails_dir) == _canonical(container)
+                thumbnails_dir.is_symlink()
+                or not _is_within(thumbnails_dir, output_path)
+                or _canonical(thumbnails_dir) == _canonical(output_path)
             ):
                 raise ValueError(
                     "Safety check failed: invalid thumbnails directory path"
@@ -3685,15 +3541,7 @@ class ImageRoutesMixin:
             temps, temp_bytes = sweep_stray_temps(thumbnails_dir, min_age=0)
             cleared_count += temps
             cleared_size += temp_bytes
-            folder_mode = preview_store.current().mode == preview_store.FOLDER_MODE
-            for root, dirs, files in os.walk(thumbnails_dir):
-                if folder_mode:
-                    # Never into a junction or reparse point (#320).
-                    dirs[:] = [
-                        d
-                        for d in dirs
-                        if not preview_store.store_is_link(Path(root) / d)
-                    ]
+            for root, _dirs, files in os.walk(thumbnails_dir):
                 for name in files:
                     path = Path(root) / name
                     if (
@@ -3701,7 +3549,6 @@ class ImageRoutesMixin:
                         or path.suffix.lower()
                         not in thumbnail_settings.THUMBNAIL_EXTENSIONS
                         or path.is_symlink()
-                        or not preview_store.may_write(path)
                     ):
                         continue
                     try:

py/api/library_location.py

@@ -50,7 +50,6 @@ _REFUSAL_STATUS = {
     "not-movable": 400,
     "same-folder": 400,
     "target-invalid": 400,
-    "data-dir-served": 400,
     "target-has-library": 409,
     "target-conflict": 409,
     "insufficient-space": 507,
@@ -75,24 +74,6 @@ def _failure(message, status, code):
     )
 
 
-def _thumbnail_folder():
-    """The thumbnail folder in use, or None (previews inside each source)."""
-    from . import preview_store
-
-    setting = preview_store.setting()
-    return setting.path if setting.mode == preview_store.FOLDER_MODE else None
-
-
-def _inside_thumbnail_folder(path):
-    """Whether *path* lies in the thumbnail folder in use (#320)."""
-    from . import preview_store
-
-    setting = preview_store.setting()
-    if setting.mode != preview_store.FOLDER_MODE or not setting.path:
-        return False
-    return ll._inside_any(path, [setting.path])
-
-
 def _plural(count, one, many=None):
     return f"{count:,} {one if count == 1 else (many or one + 's')}"
 
@@ -244,8 +225,6 @@ class LibraryLocationRoutesMixin:
             ),
             "problem": location.problem or self._node_folder_risk(location),
             "size_bytes": size,
-            # #320 D201: thumbnails kept in one folder stay there (D8A).
-            "thumbnails_folder": _thumbnail_folder(),
         }
 
     # The node folder (tests point it at a temp tree).
@@ -293,8 +272,6 @@ class LibraryLocationRoutesMixin:
     def _plan_library_move(self):
         """The checked plan (blocking); raises MoveFailed."""
         plan = lm.plan_move(self._live_location())
-        if _inside_thumbnail_folder(plan.target_dir):
-            raise lm.MoveFailed("data-dir-served")
         if lm.space_problem(plan) is not None:
             raise lm.MoveFailed("insufficient-space")
         return plan

py/api/preview_location.py

@@ -1,728 +0,0 @@
-"""The thumbnail location setting (#320): parsing, validation, source keys
-and the thumbnail folder's marker.
-
-``preview_store`` holds the runtime state and maps paths; this module holds
-the rules it applies. Nothing here keeps state.
-
-Schema (config.json ``thumbnails.location``)::
-
-    {"mode": "folder", "path": "D:\\\\Thumbs", "id": "<uuid4>",
-     "install": "<uuid4>", "cleanup": []}
-
-The default (and a missing key) is ``{"mode": "source"}``: previews inside
-each source. An invalid value never falls back to the sources: it parses as
-a folder location with problem ``invalid``, so nothing is written anywhere.
-
-Layout in folder mode: ``<folder>/<source key>/<rel dir>/<stem>_thumb<ext>``.
-A source key is a readable slug plus a short hash of the source's identity
-(``output-3f9a2c1b``), assigned once and stored in the marker
-``.promptmanager-thumbnails.json`` with the identity it belongs to.
-"""
-
-import errno
-import hashlib
-import json
-import logging
-import ntpath
-import os
-import posixpath
-import re
-import stat as stat_module
-import threading
-import time
-import unicodedata
-import uuid
-from contextlib import contextmanager
-from dataclasses import dataclass, field
-
-try:
-    from ...utils import library_location
-except ImportError:  # tests import the package top-level
-    from utils import library_location
-
-logger = logging.getLogger("prompt_manager.thumbnails")
-
-SOURCE_MODE = "source"
-FOLDER_MODE = "folder"
-MARKER_NAME = ".promptmanager-thumbnails.json"
-MARKER_VERSION = 1
-# Beside the marker while one process re-reads, changes and replaces it.
-MARKER_LOCK_NAME = ".promptmanager-thumbnails.lock"
-MARKER_LOCK_TIMEOUT = 1.5  # a writer waits this long (under preview_store.IO_BUDGET)
-MARKER_LOCK_STALE = 30.0  # a lock this old was left by a writer that died
-MARKER_LOCK_POLL = 0.02
-# A source key: one folder name, a slug and a 8-16 hex hash (``source_key``).
-KEY_PATTERN = re.compile(r"^[a-z0-9_-]{1,24}-[0-9a-f]{8,16}$")
-# A marker is a few keys; anything larger is not ours.
-MAX_MARKER_BYTES = 4 * 2**20
-# OS metadata files a folder may hold and still count as empty.
-OS_METADATA = frozenset({"thumbs.db", "desktop.ini", ".ds_store"})
-KEY_HASH_LENGTHS = (8, 12, 16)
-SLUG_LENGTH = 24
-# Folder + the longest key (24 + 1 + 16) + this margin must fit (Windows).
-WINDOWS_FOLDER_LIMIT = 247
-LONGEST_KEY = SLUG_LENGTH + 1 + KEY_HASH_LENGTHS[-1]
-PATH_MARGIN = 40
-# A validation stat on a share that does not answer in time is unavailable.
-VALIDATION_TIMEOUT = 5.0
-FILE_ATTRIBUTE_REPARSE_POINT = 0x400
-
-_RESERVED = re.compile(r"^(con|prn|aux|nul|com[1-9]|lpt[1-9])(\..*)?$", re.IGNORECASE)
-_BAD_CHARS = re.compile(r'[<>:"|?*\x00-\x1f]')
-
-# Problem codes, their HTTP status and the text the UI shows (no path).
-MESSAGES = {
-    "location-not-absolute": (
-        400,
-        "Enter a full folder path, such as D:\\Thumbnails or /mnt/fast/thumbnails.",
-    ),
-    "location-device-path": (
-        400,
-        "Enter the folder as a drive letter or \\\\server\\share path, "
-        "without \\\\?\\.",
-    ),
-    "location-invalid-name": (
-        400,
-        "This folder name can't be used on Windows. Choose another name.",
-    ),
-    "location-too-broad": (
-        400,
-        "Choose a folder inside a drive or share, not the drive itself.",
-    ),
-    "location-served": (
-        400,
-        "Choose a folder outside your image sources and ComfyUI's output, input "
-        "and temp folders.",
-    ),
-    "location-node-folder": (
-        400,
-        "Choose a folder outside the Prompt Manager node folder.",
-    ),
-    "location-contains-source": (
-        400,
-        "This folder contains an image source. Choose a folder beside it instead.",
-    ),
-    "location-same": (400, "Thumbnails are already stored here."),
-    "location-inside-current": (
-        400,
-        "This folder is inside the thumbnail folder in use. Choose a folder "
-        "outside it.",
-    ),
-    "location-parent-missing": (
-        400,
-        "The folder that would hold it doesn't exist. Check the path and that its "
-        "drive is connected.",
-    ),
-    "location-unavailable": (
-        409,
-        "This folder can't be reached right now. Check that its drive or share is "
-        "connected.",
-    ),
-    "location-not-empty": (
-        409,
-        "This folder already holds other files. Choose an empty folder or one "
-        "Prompt Manager used before.",
-    ),
-    "location-not-writable": (
-        409,
-        "Prompt Manager can't write to this folder. Check its permissions.",
-    ),
-    "location-path-too-long": (
-        400,
-        "This path is too long for Windows. Choose a shorter folder path.",
-    ),
-    "insufficient-space": (
-        507,
-        "There is not enough space for the thumbnails. Free some space or choose "
-        "another folder.",
-    ),
-    "location-needs-move": (
-        409,
-        "Use Move thumbnails in System › Sources & scans.",
-    ),
-}
-HOLDS_THUMBNAILS_REASON = "This folder holds Prompt Manager's thumbnails."
-
-
-def message(code):
-    """``(status, text)`` of a problem code."""
-    return MESSAGES[code]
-
-
-# ── parsing ──────────────────────────────────────────────────────────
-
-
-@dataclass(frozen=True)
-class ParsedLocation:
-    """A ``thumbnails.location`` value, checked as data (no filesystem)."""
-
-    mode: str = SOURCE_MODE
-    path: str | None = None
-    id: str | None = None
-    install: str | None = None
-    cleanup: tuple = field(default_factory=tuple)
-    problem: str | None = None
-
-    def to_config(self):
-        """The config.json form (``invalid`` values are never written)."""
-        if self.mode == SOURCE_MODE:
-            value = {"mode": SOURCE_MODE}
-        else:
-            value = {"mode": FOLDER_MODE, "path": self.path, "id": self.id}
-        if self.install:
-            value["install"] = self.install
-        value["cleanup"] = list(self.cleanup)
-        return value
-
-
-def _cleanup(value):
-    if not isinstance(value, list):
-        return ()
-    return tuple(item for item in value if isinstance(item, dict))
-
-
-def parse_location(value, *, flavor=os.path):
-    """The location a ``thumbnails.location`` value names.
-
-    Missing: inside each source. Anything else that is not a well-formed
-    location (an unknown mode, a relative path, a missing id) becomes a
-    folder location with problem ``invalid``: never a silent fall-back.
-    """
-    if value is None:
-        return ParsedLocation()
-    if not isinstance(value, dict):
-        return ParsedLocation(mode=FOLDER_MODE, problem="invalid")
-    mode = value.get("mode", SOURCE_MODE)
-    install = value.get("install") if isinstance(value.get("install"), str) else None
-    cleanup = _cleanup(value.get("cleanup"))
-    if mode == SOURCE_MODE:
-        return ParsedLocation(install=install, cleanup=cleanup)
-    if mode != FOLDER_MODE:
-        return ParsedLocation(mode=FOLDER_MODE, problem="invalid", cleanup=cleanup)
-    path, marker_id = value.get("path"), value.get("id")
-    if (
-        not isinstance(path, str)
-        or form_problem(path, flavor=flavor) is not None
-        or not isinstance(marker_id, str)
-        or not marker_id.strip()
-    ):
-        return ParsedLocation(
-            mode=FOLDER_MODE,
-            path=path if isinstance(path, str) else None,
-            problem="invalid",
-            cleanup=cleanup,
-        )
-    return ParsedLocation(
-        mode=FOLDER_MODE,
-        path=flavor.abspath(path),
-        id=marker_id,
-        install=install,
-        cleanup=cleanup,
-    )
-
-
-# ── form (text only) ─────────────────────────────────────────────────
-
-
-def _is_windows(flavor):
-    return flavor is ntpath or getattr(flavor, "__name__", "") == "ntpath"
-
-
-def form_problem(path, *, flavor=os.path):
-    """The text-only problem of *path*, or None (no filesystem access).
-
-    ``\\\\?\\`` and ``\\\\.\\`` prefixes, relative, drive-relative (``C:x``)
-    and root-relative (``\\x``) spellings, and names Windows cannot hold
-    (checked on every OS: the folder may be moved to Windows).
-    """
-    if not isinstance(path, str) or not path.strip() or path != path.lstrip():
-        return "location-not-absolute"
-    if path.replace("/", "\\").startswith(("\\\\?\\", "\\\\.\\")):
-        return "location-device-path"
-    if _is_windows(flavor):
-        drive, rest = ntpath.splitdrive(path)
-        if not drive or not rest.startswith(("\\", "/")):
-            return "location-not-absolute"
-    elif not posixpath.isabs(path):
-        return "location-not-absolute"
-    drive, rest = flavor.splitdrive(path)
-    for part in re.split(r"[\\/]+", rest):
-        if not part:
-            continue
-        if (
-            _RESERVED.match(part)
-            or part.endswith((".", " "))
-            or _BAD_CHARS.search(part)
-        ):
-            return "location-invalid-name"
-    return None
-
-
-def is_too_broad(path, *, home=None, flavor=os.path):
-    """A filesystem or share root, or the home folder itself."""
-    normalized = flavor.normpath(path)
-    drive, rest = flavor.splitdrive(normalized)
-    if rest in ("", "\\", "/"):
-        return True
-    home = home if home is not None else os.path.expanduser("~")
-    return bool(home) and flavor.normcase(normalized) == flavor.normcase(
-        flavor.normpath(home)
-    )
-
-
-def too_long_for_windows(path, long_paths=None):
-    """Folder + the longest key + a margin over the folder limit (Windows
-    without long paths; *long_paths* injects the registry answer)."""
-    if long_paths is None:
-        long_paths = long_paths_enabled()
-    if long_paths:
-        return False
-    return len(path) + 1 + LONGEST_KEY + PATH_MARGIN > WINDOWS_FOLDER_LIMIT
-
-
-def long_paths_enabled():
-    """``LongPathsEnabled`` on Windows (True on other systems)."""
-    if os.name != "nt":
-        return True
-    try:
-        import winreg
-
-        with winreg.OpenKey(
-            winreg.HKEY_LOCAL_MACHINE,
-            r"SYSTEM\CurrentControlSet\Control\FileSystem",
-        ) as key:
-            return winreg.QueryValueEx(key, "LongPathsEnabled")[0] == 1
-    except OSError:
-        return False
-
-
-# ── links ────────────────────────────────────────────────────────────
-
-
-def is_link_like(path):
-    """A symlink, a junction or any reparse point (one lstat), or missing.
-
-    Raises OSError other than "not found" (an unreachable share).
-    """
-    try:
-        info = os.lstat(path)
-    except FileNotFoundError:
-        return False
-    if stat_module.S_ISLNK(info.st_mode):
-        return True
-    attributes = getattr(info, "st_file_attributes", 0)
-    if attributes & FILE_ATTRIBUTE_REPARSE_POINT:
-        return True
-    is_junction = getattr(os.path, "isjunction", None)
-    return bool(is_junction and is_junction(path))
-
-
-# ── source keys ──────────────────────────────────────────────────────
-
-
-def slug(name):
-    """``NFKD`` to ASCII, lower case, runs outside ``[a-z0-9_]`` as ``-``,
-    trimmed and cut to 24 characters; empty becomes ``source``."""
-    text = unicodedata.normalize("NFKD", str(name))
-    text = text.encode("ascii", "ignore").decode("ascii").lower()
-    text = re.sub(r"[^a-z0-9_]+", "-", text).strip("-")
-    text = text[:SLUG_LENGTH].strip("-")
-    return text or "source"
-
-
-def source_key(spelling, identity, taken):
-    """The key of a source: ``slug(basename) + "-" + sha256(identity)[:n]``.
-
-    *taken* maps existing keys to their identity; a key taken by another
-    identity grows its hash to 12, then 16 characters.
-    """
-    base = slug(ntpath.basename(str(spelling).rstrip("\\/")))
-    digest = hashlib.sha256(str(identity).encode("utf-8")).hexdigest()
-    for length in KEY_HASH_LENGTHS:
-        key = f"{base}-{digest[:length]}"
-        owner = taken.get(key)
-        if owner is None or owner == identity:
-            return key
-    raise ValueError("no free source key")
-
-
-def file_identity(path):
-    """``[st_dev, st_ino]`` of an existing folder, or None (no file ids)."""
-    try:
-        info = os.stat(path)
-    except (OSError, ValueError):
-        return None
-    if not info.st_ino:
-        return None
-    return [info.st_dev, info.st_ino]
-
-
-def find_key(keys, spelling, identity, dev_ino):
-    """The marker key of a source: the same configured spelling, then the
-    same identity text, then the same file id; or None."""
-    keys = {k: v for k, v in keys.items() if valid_key(k) and isinstance(v, dict)}
-    for key, entry in keys.items():
-        if entry.get("path") == spelling:
-            return key
-    for key, entry in keys.items():
-        if entry.get("identity") == identity:
-            return key
-    if dev_ino:
-        for key, entry in keys.items():
-            if entry.get("dev_ino") == list(dev_ino):
-                return key
-    return None
-
-
-# ── the marker ───────────────────────────────────────────────────────
-
-
-def marker_path(folder):
-    return os.path.join(folder, MARKER_NAME)
-
-
-def read_marker(folder):
-    """The marker in *folder* as a dict, or None (absent or unreadable as
-    ours). OSError other than "not found" propagates (an unreachable share)."""
-    try:
-        with open(marker_path(folder), "r", encoding="utf-8") as handle:
-            text = handle.read(MAX_MARKER_BYTES + 1)
-    except FileNotFoundError:
-        return None
-    except (ValueError, UnicodeDecodeError):
-        return None
-    if len(text) > MAX_MARKER_BYTES:
-        return None
-    try:
-        data = json.loads(text)
-    except ValueError:
-        return None
-    if not isinstance(data, dict) or not isinstance(data.get("id"), str):
-        return None
-    data["keys"] = valid_keys(data.get("keys"))
-    return data
-
-
-def valid_key(key):
-    """Whether *key* can name a source's folder: one folder name of the
-    ``source_key`` form, never a separator, ``..`` or a drive."""
-    return isinstance(key, str) and KEY_PATTERN.fullmatch(key) is not None
-
-
-def valid_keys(keys):
-    """The marker's keys that are safe to join onto the folder; a hand-edited
-    or foreign entry that is not is dropped (and logged), never followed."""
-    if not isinstance(keys, dict):
-        return {}
-    kept = {}
-    for key, entry in keys.items():
-        if valid_key(key) and isinstance(entry, dict):
-            kept[key] = entry
-        else:
-            logger.warning(
-                "Ignoring a thumbnail folder marker entry that is not a source " "key"
-            )
-    return kept
-
-
-@contextmanager
-def _marker_lock(folder):
-    """Hold the folder's marker lock: a file made with ``O_CREAT | O_EXCL``
-    (atomic on local disks and SMB/NFS shares, unlike ``flock``), so installs
-    sharing the folder change the marker one at a time. A lock older than
-    MARKER_LOCK_STALE was left by a writer that died and is taken over;
-    waiting longer than MARKER_LOCK_TIMEOUT raises TimeoutError."""
-    lock = os.path.join(folder, MARKER_LOCK_NAME)
-    deadline = time.monotonic() + MARKER_LOCK_TIMEOUT
-    while True:
-        try:
-            handle = os.open(lock, os.O_CREAT | os.O_EXCL | os.O_WRONLY, 0o644)
-        except FileExistsError:
-            _break_stale_lock(lock)
-            if time.monotonic() >= deadline:
-                raise TimeoutError(
-                    errno.ETIMEDOUT, "the thumbnail folder marker is locked", lock
-                )
-            time.sleep(MARKER_LOCK_POLL)
-            continue
-        try:
-            os.write(handle, f"{os.getpid()}\n".encode("ascii"))
-        finally:
-            os.close(handle)  # closed before any unlink (Windows)
-        break
-    try:
-        yield
-    finally:
-        try:
-            os.unlink(lock)
-        except FileNotFoundError:
-            pass  # taken over as stale by another writer: nothing to release
-
-
-def _break_stale_lock(lock):
-    """Remove *lock* when it is older than MARKER_LOCK_STALE (its writer
-    died); a lock that changed since it was looked at is left alone."""
-    try:
-        before = os.stat(lock)
-    except FileNotFoundError:
-        return
-    if time.time() - before.st_mtime < MARKER_LOCK_STALE:
-        return
-    logger.warning(f"Taking over a stale thumbnail folder lock: {lock}")
-    try:
-        after = os.stat(lock)
-        if (after.st_ino, after.st_mtime_ns) == (before.st_ino, before.st_mtime_ns):
-            os.unlink(lock)
-    except FileNotFoundError:
-        pass  # another writer took it over first
-
-
-def write_marker(folder, mutate):
-    """Re-read the marker, apply ``mutate(marker)`` and write it atomically
-    (a temp sibling renamed over it), all under the folder's marker lock so a
-    second install sharing the folder never drops this one's change (and
-    the other way round). Callers hold ``preview_store.write_lock`` (threads
-    of this process). Returns the marker written; TimeoutError when another
-    writer holds the lock too long."""
-    with _marker_lock(folder):
-        return _write_marker_locked(folder, mutate)
-
-
-def _write_marker_locked(folder, mutate):
-    current = read_marker(folder) or {}
-    marker = {
-        "version": MARKER_VERSION,
-        "id": current.get("id"),
-        "created_by_pm": bool(current.get("created_by_pm", False)),
-        "keys": dict(current.get("keys") or {}),
-    }
-    mutate(marker)
-    if not marker.get("id"):
-        raise ValueError("a marker needs an id")
-    target = marker_path(folder)
-    temp = os.path.join(
-        folder, f".{MARKER_NAME}.{os.getpid()}-{threading.get_ident()}.tmp"
-    )
-    try:
-        with open(temp, "w", encoding="utf-8") as handle:
-            json.dump(marker, handle, indent=2, sort_keys=True)
-            handle.flush()
-            os.fsync(handle.fileno())
-        os.replace(temp, target)
-    finally:
-        try:
-            os.unlink(temp)
-        except OSError:
-            pass  # gone with the rename; a leftover is swept with the temps
-    return marker
-
-
-def new_id():
-    return str(uuid.uuid4())
-
-
-def init_folder(folder, *, created_by_pm=False):
-    """The marker id of *folder*: an existing marker is adopted; a folder
-    without one gets a new marker (new id, no keys)."""
-    existing = read_marker(folder)
-    if existing is not None:
-        return existing["id"]
-
-    def create(marker):
-        if not marker.get("id"):
-            marker["id"] = new_id()
-            marker["created_by_pm"] = created_by_pm
-
-    return write_marker(folder, create)["id"]
-
-
-def folder_state(path, expected_id):
-    """``(available, problem, marker)`` of a configured thumbnail folder.
-
-    Available: the folder exists, is a directory and not a link, junction or
-    reparse point, and holds our marker with *expected_id*. Raises OSError
-    when the folder cannot be reached (an I/O error other than not found).
-    """
-    try:
-        info = os.lstat(path)
-    except FileNotFoundError:
-        return False, "missing", None
-    except OSError as error:
-        if error.errno in (errno.ENOENT, errno.ENOTDIR):
-            return False, "missing", None
-        raise
-    if is_link_like(path):
-        return False, "invalid", None
-    if not stat_module.S_ISDIR(info.st_mode):
-        return False, "invalid", None
-    marker = read_marker(path)
-    if marker is None:
-        return False, "missing", None
-    if marker["id"] != expected_id:
-        return False, "marker-mismatch", marker
-    return True, None, marker
-
-
-def holds_only_metadata(path):
-    """Whether an existing folder is empty but for OS metadata files."""
-    with os.scandir(path) as entries:
-        for entry in entries:
-            name = entry.name.lower()
-            if name in OS_METADATA or name.startswith("._"):
-                continue
-            return False
-    return True
-
-
-# ── validation ───────────────────────────────────────────────────────
-
-
-@dataclass(frozen=True)
-class Context:
-    """What a location is checked against (gathered by the caller)."""
-
-    roots: tuple = ()  # every image source of every root list
-    contained: tuple = ()  # ComfyUI output/input/temp and the library folder
-    node_folder: str | None = None
-    default_path: str | None = None
-    current_path: str | None = None  # the folder in use (folder mode)
-    home: str | None = None
-    flavor: object = os.path
-    long_paths: bool | None = None
-    environ: object = None
-    # ComfyUI's folder_paths module (None: none; unset: imported).
-    folder_paths: object = library_location._UNSET
-
-
-def _timed(func, timeout):
-    """``func()`` on a daemon thread; raises TimeoutError past *timeout*.
-    A stuck call is left to finish on its own thread."""
-    result = {}
-    done = threading.Event()
-
-    def run():
-        try:
-            result["value"] = func()
-        except BaseException as error:  # _timed() re-raises it in the caller
-            result["error"] = error
-        finally:
-            done.set()
-
-    threading.Thread(target=run, name="pm-preview-stat", daemon=True).start()
-    if not done.wait(timeout):
-        raise TimeoutError("the folder did not answer in time")
-    if "error" in result:
-        raise result["error"]
-    return result.get("value")
-
-
-def _inside(path, folders):
-    return library_location._inside_any(path, folders)
-
-
-def _same(first, second):
-    return library_location.same_folder(first, second) or os.path.normcase(
-        os.path.realpath(first)
-    ) == os.path.normcase(os.path.realpath(second))
-
-
-def _served(path, context):
-    environ = os.environ if context.environ is None else context.environ
-    return (
-        library_location.data_dir_problem(
-            path,
-            folder_paths=context.folder_paths,
-            environ=environ,
-            gallery_roots=list(context.roots),
-        )
-        == "data-dir-served"
-    )
-
-
-def _probe_write(path):
-    """Create and delete a probe file in *path*; False when refused."""
-    probe = os.path.join(path, f".pm-probe-{uuid.uuid4().hex[:8]}.tmp")
-    try:
-        with open(probe, "wb") as handle:
-            handle.write(b"")
-    except OSError:
-        return False
-    try:
-        os.unlink(probe)
-    except OSError:
-        return False
-    return True
-
-
-def location_problem(path, *, purpose, context, timeout=VALIDATION_TIMEOUT):
-    """Why *path* cannot be the thumbnail folder, as a code, or None.
-
-    *purpose*: ``move`` (every rule), ``startup`` (no ``same``, ``empty``,
-    ``writable`` or parent rules: availability covers them) or ``recreate``
-    (the folder is missing and is made again).
-    """
-    flavor = context.flavor
-    code = form_problem(path, flavor=flavor)
-    if code is not None:
-        return code
-    path = flavor.abspath(path)
-    default = bool(context.default_path) and flavor.normcase(path) == flavor.normcase(
-        flavor.abspath(context.default_path)
-    )
-    if is_too_broad(path, home=context.home, flavor=flavor):
-        return "location-too-broad"
-    try:
-        return _timed(
-            lambda: _filesystem_problem(path, purpose, context, default), timeout
-        )
-    except (TimeoutError, OSError):
-        return "location-unavailable"
-
-
-def _filesystem_problem(path, purpose, context, default):
-    if _served(path, context):
-        return "location-served"
-    if context.node_folder and not default and _inside(path, [context.node_folder]):
-        return "location-node-folder"
-    inner = list(context.roots) + list(context.contained)
-    if any(folder and _inside(folder, [path]) for folder in inner):
-        if not default:
-            return "location-contains-source"
-    if (
-        purpose == "move"
-        and context.current_path
-        and (
-            os.path.normcase(path) == os.path.normcase(context.current_path)
-            or (os.path.isdir(path) and _same(path, context.current_path))
-        )
-    ):
-        return "location-same"
-    if (
-        purpose == "move"
-        and context.current_path
-        and _inside(path, [context.current_path])
-    ):
-        # The old key folders are removed after the move, and with them a
-        # target nested inside one of them.
-        return "location-inside-current"
-    # Windows, or a test injecting its limit (``long_paths=False``).
-    if os.name == "nt" or context.long_paths is False:
-        if too_long_for_windows(path, context.long_paths):
-            return "location-path-too-long"
-    if purpose == "startup":
-        return None
-    if is_link_like(path):
-        # Never through a link: the folder itself must be a real folder.
-        return "location-not-empty"
-    exists = os.path.isdir(path)
-    if not exists:
-        if os.path.lexists(path):
-            return "location-not-empty"
-        if not default and not os.path.isdir(os.path.dirname(path)):
-            return "location-parent-missing"
-        return None
-    if read_marker(path) is None and not holds_only_metadata(path):
-        return "location-not-empty"
-    if not _probe_write(path):
-        return "location-not-writable"
-    return None

py/api/preview_store.py

@@ -1,728 +0,0 @@
-"""Where previews live on disk (#320): the one resolver.
-
-Every mapping between an image source (a "root"), one of its media files and
-that file's preview on disk goes through this module. URL text stays in
-``thumbnail_settings`` (``thumbnail_rel``: ``thumbnails/<rel>_thumb<ext>``,
-the shape the serve route, ``inspection-state.mjs`` and ``admin.js`` share);
-this module answers where such a preview is on disk.
-
-The store of a source is where its previews live. With the default location
-(mode ``source``, "Inside each source") it is ``<source>/thumbnails``, exactly
-the folder every caller joined by hand before, so nothing moves.
-
-Writes and the switch: every preview writer takes ``write_guard`` when it
-starts (it records the location's ``generation``); the final rename runs
-under ``write_lock`` and only when the generation is unchanged and no hold
-applies (``thumbnail_encode.replace_unless_held``). Changing the location
-bumps the generation under the same lock, so no write that began before can
-land in the old store afterwards. Nothing reads or commits config while
-``write_lock`` is held. The hold check runs under it too, so hold checks take
-no lock (the job registry's ``running()`` is a lock-free snapshot) and
-``bump_generation`` is never called with a registry or config lock held.
-
-All functions are blocking: call them off the event loop.
-"""
-
-import errno
-import logging
-import os
-import threading
-import time
-from contextlib import contextmanager
-from dataclasses import dataclass, replace
-from pathlib import Path
-
-from . import preview_location, thumbnail_settings
-
-try:
-    from ...utils.media_folders import PREVIEW_FOLDER
-except ImportError:  # tests import the package top-level
-    from utils.media_folders import PREVIEW_FOLDER
-
-logger = logging.getLogger("prompt_manager.thumbnails")
-
-SOURCE_MODE = preview_location.SOURCE_MODE
-FOLDER_MODE = preview_location.FOLDER_MODE
-# The probe checks the folder this often, and a check (or a store call)
-# taking longer than the budget marks it unreachable.
-PROBE_INTERVAL = 5.0
-IO_BUDGET = 2.0
-PROBE_THREAD = "pm-preview-probe"
-
-
-@dataclass(frozen=True)
-class Location:
-    """One snapshot of the thumbnail location (take one per request or job)."""
-
-    mode: str = SOURCE_MODE
-    path: str | None = None
-    available: bool = True
-    problem: str | None = None
-    generation: int = 0
-
-
-write_lock = threading.Lock()
-_generation = 0
-# The runtime location: the parsed setting, availability and the marker keys
-# last read. Swapped as a whole; readers take one snapshot.
-_state_lock = threading.Lock()
-_parsed = preview_location.ParsedLocation()
-_available = True
-_problem = None
-# The newest check whose answer was published.
-_published_order = 0
-_keys = {}
-_key_cache = {}
-_clock = time.monotonic
-
-
-def current():
-    """The thumbnail location now."""
-    with _state_lock:
-        parsed, available, problem, generation_now = (
-            _parsed,
-            _available,
-            _problem,
-            _generation,
-        )
-    if parsed.mode == SOURCE_MODE:
-        return Location(generation=generation_now)
-    return Location(FOLDER_MODE, parsed.path, available, problem, generation_now)
-
-
-def setting():
-    """The parsed setting in use (``preview_location.ParsedLocation``)."""
-    return _parsed
-
-
-def generation():
-    return _generation
-
-
-def bump_generation():
-    """Invalidate every write that started before (under ``write_lock``)."""
-    global _generation
-    with write_lock:
-        _generation += 1
-        return _generation
-
-
-def _canonical(path):
-    """Resolved and case-folded, so paths compare on every OS."""
-    return Path(os.path.normcase(os.path.realpath(str(path))))
-
-
-def _within(path, folder):
-    return _canonical(path).is_relative_to(_canonical(folder))
-
-
-# ── the setting and availability ─────────────────────────────────────
-
-
-def configure(value, *, context=None, check=True):
-    """Use the ``thumbnails.location`` *value* (config.json) from now on.
-
-    A folder location is validated against *context* (``startup`` rules: a
-    problem other than an unreachable folder makes it ``invalid``), then
-    checked once; the probe keeps checking it. Swapped under ``write_lock``
-    with a generation bump, so no write that started before lands.
-    """
-    global _parsed, _available, _problem, _generation
-    parsed = preview_location.parse_location(value)
-    problem = parsed.problem
-    if parsed.mode == FOLDER_MODE and problem is None and context is not None:
-        code = preview_location.location_problem(
-            parsed.path, purpose="startup", context=context
-        )
-        if code == "location-unavailable":
-            problem = "unreachable"
-        elif code is not None:
-            problem = "invalid"
-            parsed = preview_location.ParsedLocation(
-                mode=FOLDER_MODE,
-                path=parsed.path,
-                id=parsed.id,
-                install=parsed.install,
-                cleanup=parsed.cleanup,
-                problem="invalid",
-            )
-    with write_lock:
-        with _state_lock:
-            _parsed = parsed
-            _available = parsed.mode == SOURCE_MODE
-            _problem = problem if parsed.mode == FOLDER_MODE else None
-            _keys.clear()
-            _key_cache.clear()
-        _generation += 1
-    if parsed.mode == FOLDER_MODE:
-        if check and parsed.problem is None:
-            refresh()
-        _probe.start()
-    else:
-        _probe.stop()
-    return current()
-
-
-def refresh():
-    """Check the folder now (bounded by IO_BUDGET); returns availability."""
-    parsed = _parsed
-    if parsed.mode != FOLDER_MODE or parsed.problem is not None:
-        return parsed.mode == SOURCE_MODE
-    try:
-        (available, problem, marker), order = _probe.ordered_check(
-            parsed.path, parsed.id
-        )
-    except (OSError, TimeoutError, RuntimeError):
-        available, problem, marker = False, "unreachable", None
-        order = _probe.latest_order()
-    _set_state(parsed, available, problem, marker, order)
-    return available
-
-
-def _set_keys(parsed, marker):
-    """Take the keys of a marker just written (availability unchanged)."""
-    with _state_lock:
-        if _parsed is not parsed:
-            return
-        keys = dict((marker or {}).get("keys") or {})
-        if keys != _keys:
-            _keys.clear()
-            _keys.update(keys)
-            _key_cache.clear()
-
-
-def set_cleanup(entries):
-    """The setting's ``cleanup`` after a removal was committed."""
-    global _parsed
-    with _state_lock:
-        _parsed = replace(_parsed, cleanup=tuple(entries))
-
-
-def mark_invalid():
-    """The setting cannot be used (a startup check that failed): folder
-    mode stays in force, unavailable, so nothing is written anywhere."""
-    global _parsed, _available, _problem
-    with _state_lock:
-        if _parsed.mode != FOLDER_MODE:
-            _parsed = preview_location.ParsedLocation(
-                mode=FOLDER_MODE, problem="invalid"
-            )
-        else:
-            _parsed = replace(_parsed, problem="invalid")
-        _available, _problem = False, "invalid"
-
-
-def _set_state(parsed, available, problem, marker, order):
-    """Publish a check's answer, unless a check that started later already
-    published (two callers can finish out of order, #611)."""
-    global _available, _problem, _published_order
-    with _state_lock:
-        if _parsed is not parsed:
-            return  # the setting changed meanwhile
-        if order < _published_order:
-            return
-        _published_order = order
-        _available, _problem = available, problem
-        keys = dict((marker or {}).get("keys") or {})
-        if keys != _keys:
-            _keys.clear()
-            _keys.update(keys)
-            _key_cache.clear()
-
-
-def note_failure():
-    """A store call failed or stalled: unreachable until the probe finds the
-    folder again (requests do no store I/O meanwhile)."""
-    global _available, _problem
-    if _parsed.mode != FOLDER_MODE:
-        return
-    with _state_lock:
-        _available, _problem = False, "unreachable"
-    _probe.wake()
-
-
-@contextmanager
-def store_io():
-    """Around a store call in folder mode: an I/O error (other than a file
-    that is not there) or a call over IO_BUDGET marks the folder
-    unreachable."""
-    if _parsed.mode != FOLDER_MODE:
-        yield
-        return
-    started = _clock()
-    try:
-        yield
-    except OSError as error:
-        if not isinstance(error, (FileNotFoundError, NotADirectoryError)):
-            note_failure()
-        raise
-    finally:
-        if _clock() - started > IO_BUDGET:
-            note_failure()
-
-
-class _Probe:
-    """The background check of the thumbnail folder (one thread, one check
-    at a time; a stuck check is left to finish on its own thread)."""
-
-    def __init__(self):
-        self._lock = threading.Lock()
-        self._wake = threading.Event()
-        self._stop = threading.Event()
-        self._thread = None
-        self._checking = None
-        self._order = 0
-
-    def check(self, path, expected_id):
-        """``folder_state`` within IO_BUDGET; see :meth:`ordered_check`."""
-        return self.ordered_check(path, expected_id)[0]
-
-    def latest_order(self):
-        """The order number of the check started last."""
-        with self._lock:
-            return self._order
-
-    def ordered_check(self, path, expected_id):
-        """``(folder_state, order)`` within IO_BUDGET; raises TimeoutError.
-
-        ``order`` grows with each check started, so answers can be published
-        in the order they looked. The answer comes from a check that started
-        after this call: one already running may have looked before what the
-        caller just did, so it is waited for (never run twice at once; a stuck
-        one times out here) and followed by a new one."""
-        key = (path, expected_id)
-        with self._lock:
-            earlier = self._running(key)
-            pending = None if earlier else self._start_check(path, expected_id)
-        if earlier:
-            self._wait(earlier)
-            with self._lock:
-                # One another caller started meanwhile is new enough to join.
-                pending = self._running(key) or self._start_check(path, expected_id)
-        self._wait(pending)
-        with self._lock:
-            if self._checking is pending:
-                self._checking = None
-        if "error" in pending[2]:
-            raise pending[2]["error"]
-        return pending[2]["value"], pending[2]["order"]
-
-    def _running(self, key):
-        """The check of *key* still running (lock held), else None."""
-        pending = self._checking
-        if pending is None or pending[0] != key or pending[1].is_set():
-            return None
-        return pending
-
-    @staticmethod
-    def _wait(pending):
-        if not pending[1].wait(IO_BUDGET):
-            raise TimeoutError("the thumbnail folder did not answer in time")
-
-    def _start_check(self, path, expected_id):
-        """Start one check on its own thread (lock held)."""
-        self._order += 1
-        result = {"order": self._order}
-        done = threading.Event()
-
-        def run():
-            try:
-                result["value"] = preview_location.folder_state(path, expected_id)
-            except BaseException as error:  # check() re-raises it in the caller
-                result["error"] = error
-            finally:
-                done.set()
-
-        pending = ((path, expected_id), done, result)
-        self._checking = pending
-        threading.Thread(target=run, name=PROBE_THREAD + "-check", daemon=True).start()
-        return pending
-
-    def start(self):
-        with self._lock:
-            if self._thread is not None and self._thread.is_alive():
-                return
-            # Each thread has its own stop: a stopped one never resumes.
-            stop = self._stop = threading.Event()
-            thread = threading.Thread(
-                target=self._run, args=(stop,), name=PROBE_THREAD, daemon=True
-            )
-            try:
-                thread.start()
-            except RuntimeError:
-                return  # refused at interpreter exit: no probe
-            self._thread = thread
-
-    def _run(self, stop):
-        while not stop.is_set():
-            self._wake.wait(PROBE_INTERVAL)
-            self._wake.clear()
-            if stop.is_set():
-                return
-            try:
-                refresh()
-            except Exception:  # one failed check never stops the probe
-                logger.debug("Thumbnail folder check failed", exc_info=True)
-
-    def wake(self):
-        self._wake.set()
-
-    def stop(self, timeout=2.0):
-        """Stop the probe; True when its thread ended."""
-        with self._lock:
-            thread, self._thread = self._thread, None
-        self._stop.set()
-        self._wake.set()
-        if thread is None or thread is threading.current_thread():
-            return True
-        thread.join(timeout)
-        return not thread.is_alive()
-
-
-_probe = _Probe()
-
-
-def stop_probe(timeout=2.0):
-    """Stop the folder probe (the package teardown, tests)."""
-    return _probe.stop(timeout)
-
-
-# ── stores ───────────────────────────────────────────────────────────
-
-
-def source_folder(root):
-    """``<source>/thumbnails``: the store in source mode, a leftover in
-    folder mode."""
-    return Path(root) / PREVIEW_FOLDER
-
-
-def store_container(root, location=None):
-    """The folder a store of *root* must stay inside: the source itself, or
-    the thumbnail folder in folder mode."""
-    location = location or current()
-    if location.mode == FOLDER_MODE:
-        return Path(location.path) if location.path else None
-    return Path(root)
-
-
-def _identity(root):
-    return os.path.normcase(os.path.realpath(str(root)))
-
-
-def _lookup_key(root):
-    spelling = str(root)
-    with _state_lock:
-        if spelling in _key_cache:
-            return _key_cache[spelling]
-        keys = dict(_keys)
-    key = preview_location.find_key(
-        keys,
-        spelling,
-        _identity(root),
-        preview_location.file_identity(root),
-    )
-    if key is not None:
-        with _state_lock:
-            _key_cache[spelling] = key
-    return key
-
-
-def store_dir(root, location=None):
-    """The store of *root*: ``<source>/thumbnails``, or in folder mode
-    ``<folder>/<key>`` (None while the folder is unavailable or before the
-    source has a key: a reader then finds no preview)."""
-    location = location or current()
-    if location.mode == SOURCE_MODE:
-        return Path(root) / PREVIEW_FOLDER
-    if not location.available or not location.path:
-        return None
-    key = _lookup_key(root)
-    return None if key is None else _key_folder(location.path, key)
-
-
-def _key_folder(folder, key):
-    """``<folder>/<key>``, only for a key that is one folder name directly
-    below the thumbnail folder (a marker is data, never a path)."""
-    if not preview_location.valid_key(key):
-        return None
-    store = Path(folder) / key
-    if store.parent != Path(folder) or store.name != key:
-        return None
-    return store
-
-
-def ensure_store(root, location=None, *, create=False):
-    """``store_dir`` for a writer: in folder mode a source without a key gets
-    one (recorded in the marker); with *create* its key folder is made (never
-    the thumbnail folder itself). None while the folder is unavailable, and
-    for a key folder that is a link, junction or reparse point: nothing is
-    planned, written or removed through it."""
-    location = location or current()
-    store = store_dir(root, location)
-    if location.mode == SOURCE_MODE or (store is None and not location.available):
-        return store
-    if store is None:
-        store = _assign_key(root, location)
-        if store is None:
-            return None
-    try:
-        with store_io():
-            linked = preview_location.is_link_like(store)
-    except OSError:
-        return None
-    if linked:
-        logger.warning(f"Skipping the thumbnail folder {store}: it is a link")
-        return None
-    if create:
-        try:
-            with store_io():
-                os.mkdir(store)
-        except FileExistsError:
-            pass  # already there: another writer made the key folder
-        except OSError:
-            return None
-    return store
-
-
-def _assign_key(root, location):
-    parsed = _parsed
-    if location.path != parsed.path:
-        return None
-    spelling = str(root)
-    identity = _identity(root)
-    dev_ino = preview_location.file_identity(root)
-    assigned = {}
-
-    def add(marker):
-        if marker.get("id") != parsed.id:
-            raise ValueError("another folder's marker")  # marker-mismatch
-        keys = marker["keys"]
-        key = preview_location.find_key(keys, spelling, identity, dev_ino)
-        if key is None:
-            taken = {k: v.get("identity") for k, v in keys.items()}
-            key = preview_location.source_key(spelling, identity, taken)
-            keys[key] = {
-                "path": spelling,
-                "identity": identity,
-                "dev_ino": dev_ino,
-                "install": parsed.install,
-            }
-        assigned["key"] = key
-
-    try:
-        with write_lock, store_io():
-            marker = preview_location.write_marker(location.path, add)
-    except (OSError, ValueError):
-        return None
-    _set_keys(parsed, marker)
-    return _key_folder(location.path, assigned["key"])
-
-
-def may_write(path, location=None):
-    """The one ownership check every preview write and delete passes.
-
-    Source mode: True (the callers' own root rules apply, as before). Folder
-    mode: *path* lies below a source key folder of the thumbnail folder,
-    lexically and resolved, and no link, junction or reparse point sits
-    anywhere from the key folder down to it (the file itself included).
-    """
-    location = location or current()
-    if location.mode == SOURCE_MODE:
-        return True
-    if not location.path:
-        return False
-    folder = Path(os.path.abspath(location.path))
-    path = Path(os.path.abspath(path))
-    try:
-        relative = path.relative_to(folder)
-    except ValueError:
-        return False
-    if len(relative.parts) < 2 or ".." in relative.parts:
-        return False
-    store = _key_folder(folder, relative.parts[0])
-    if store is None or not _within(path, folder):
-        return False
-    try:
-        return _no_link_below(store, path)
-    except OSError:
-        note_failure()
-        return False
-
-
-def make_parent(dst, location=None):
-    """Make the folders a preview *dst* is written into. In folder mode only
-    folders below the thumbnail folder are made, never the folder itself,
-    and only while it holds this install's marker (an unplugged drive or an
-    unmounted mount point raises FileNotFoundError); a *dst* that does not
-    pass ``may_write`` raises PermissionError."""
-    location = location or current()
-    dst = Path(dst)
-    if location.mode == SOURCE_MODE or not location.path:
-        if location.mode != SOURCE_MODE:
-            raise FileNotFoundError(errno.ENOENT, "thumbnail folder unavailable")
-        dst.parent.mkdir(parents=True, exist_ok=True)
-        return
-    folder = Path(os.path.abspath(location.path))
-    with store_io():
-        if not location.available or not folder.is_dir():
-            raise FileNotFoundError(errno.ENOENT, "thumbnail folder unavailable")
-        marker = preview_location.read_marker(str(folder))
-        if marker is None or marker.get("id") != _parsed.id:
-            note_failure()
-            raise FileNotFoundError(errno.ENOENT, "thumbnail folder unavailable")
-        if not may_write(dst, location):
-            raise PermissionError(errno.EACCES, "outside the thumbnail folder")
-        current_folder = folder
-        for part in Path(os.path.abspath(dst.parent)).relative_to(folder).parts:
-            current_folder = current_folder / part
-            try:
-                os.mkdir(current_folder)
-            except FileExistsError:
-                pass  # already there: another writer made this folder
-            if preview_location.is_link_like(current_folder):
-                raise PermissionError(errno.EACCES, "a link in the thumbnail folder")
-
-
-def store_is_link(store, location=None):
-    """Whether a store folder is a link (a junction or reparse point too in
-    folder mode): it is skipped by sweeps and refused by clears."""
-    location = location or current()
-    if location.mode == SOURCE_MODE:
-        return Path(store).is_symlink()
-    return preview_location.is_link_like(store)
-
-
-def given_store(root, store):
-    """A caller's explicit store argument: the default spelling
-    (``<root>/thumbnails``) means the resolver's store; another folder (only
-    tests pass one) is used as given."""
-    store = Path(store)
-    if store == Path(root) / PREVIEW_FOLDER:
-        return store_dir(root)
-    return store
-
-
-def preview_path(root, media_rel, ext=None, location=None, *, create=False):
-    """Where the preview of *media_rel* (relative to *root*) is, or is to be
-    written (*create*: a writer, which gives a new source its key), in *ext*
-    (the extension written now when None)."""
-    if create:
-        store = ensure_store(root, location)
-    else:
-        store = store_dir(root, location)
-    if store is None:
-        return None
-    if ext is None:
-        from .thumbnail_encode import writer_settings
-
-        ext = writer_settings().extension
-    return store / (thumbnail_settings.preview_stem(media_rel) + ext)
-
-
-def request_path(root, parts, location=None):
-    """The disk path of the URL parts ``("thumbnails", ...)``, or None when
-    *parts* is not under an exact ``thumbnails`` first part or the store has
-    no place for it. The text is checked before (``is_preview_text``)."""
-    parts = tuple(parts)
-    if len(parts) < 2 or parts[0] != PREVIEW_FOLDER:
-        return None
-    store = store_dir(root, location)
-    if store is None:
-        return None
-    return store.joinpath(*parts[1:])
-
-
-def _no_link_below(store, path):
-    """No folder from *store* down to *path* (and *store* itself) is a link,
-    junction or reparse point (lexical walk, one lstat each)."""
-    store = Path(os.path.abspath(store))
-    path = Path(os.path.abspath(path))
-    try:
-        relative = path.relative_to(store)
-    except ValueError:
-        return False
-    current = store
-    for part in ("",) + relative.parts:
-        current = current / part if part else current
-        if preview_location.is_link_like(current):
-            return False
-    return True
-
-
-def owns(root, path, location=None):
-    """Whether *path* lies inside the store of *root*, resolved: the store
-    stays inside its container and no link takes *path* out of the store.
-    In folder mode no link, junction or reparse point may sit anywhere from
-    the store down to *path*."""
-    location = location or current()
-    store = store_dir(root, location)
-    if store is None:
-        return False
-    container = store_container(root, location)
-    if not (_within(store, container) and _within(path, store)):
-        return False
-    if location.mode == SOURCE_MODE:
-        return True
-    return may_write(path, location)
-
-
-# ── preview text ─────────────────────────────────────────────────────
-
-
-def is_preview_text(filepath):
-    """URL text naming a preview: ``thumbnails/<...>/<name>_thumb<ext>``.
-
-    Text only, before any join: no backslash, drive or stream colon, and no
-    empty, ``.`` or ``..`` segment; ``thumbnails`` exactly as the first part
-    and nowhere else among the folders; the extension, in any case, one a
-    preview may carry (``X_thumb.JPG`` of an older release included).
-    """
-    if not filepath or "\\" in filepath or ":" in filepath:
-        return False
-    parts = filepath.split("/")
-    if len(parts) < 2 or parts[0] != PREVIEW_FOLDER:
-        return False
-    if any(part in ("", ".", "..") for part in parts):
-        return False
-    if PREVIEW_FOLDER in parts[1:-1]:
-        return False
-    stem, extension = os.path.splitext(parts[-1])
-    return (
-        stem.endswith(thumbnail_settings.THUMB_SUFFIX)
-        and len(stem) > len(thumbnail_settings.THUMB_SUFFIX)
-        and extension.lower() in thumbnail_settings.THUMBNAIL_EXTENSIONS
-    )
-
-
-# ── writes ───────────────────────────────────────────────────────────
-
-
-class _WriteGuard:
-    """``guard()`` for one preview write: true while the location has not
-    changed since the write started and *hold* (if any) allows it."""
-
-    __slots__ = ("generation", "_hold")
-
-    def __init__(self, hold=None):
-        self.generation = _generation
-        self._hold = hold
-
-    def __call__(self):
-        if self.generation != _generation:
-            return False
-        return self._hold is None or bool(self._hold())
-
-
-def write_guard(hold=None):
-    """Take when a preview write starts; hand to its final rename."""
-    if isinstance(hold, _WriteGuard):
-        return hold
-    return _WriteGuard(hold)
-
-
-@contextmanager
-def committed(guard=None):
-    """Around a preview's final rename: holds ``write_lock`` and yields
-    whether the write may land (``guard()``, re-checked under the lock)."""
-    with write_lock:
-        yield guard is None or bool(guard())

py/api/settings_routes.py

@@ -30,7 +30,6 @@ from . import thumbnail_settings
 from .admin import _current_image_monitor
 from .job_routes import busy_response
 from .jobs import THUMBNAILS_JOB_KIND, JobBusy
-from .thumbnail_location import needs_move_response
 
 try:
     from ...utils.validators import validate_result_timeout, validate_worker_threads
@@ -343,12 +342,6 @@ class SettingsRoutesMixin:
                     "sources": source_status,
                     "monitor": monitor,
                     "thumbnail_encoders": encoders,
-                    # #320: the full path only here (D6A).
-                    "thumbnail_location": await self._run_in_executor(
-                        functools.partial(
-                            self._thumbnail_location_payload, with_path=True
-                        )
-                    ),
                     "settings": {
                         "monitoring_enabled": GalleryConfig.MONITORING_ENABLED,
                         "save_foreign_runs": GalleryConfig.SAVE_FOREIGN_RUNS,
@@ -475,9 +468,6 @@ class SettingsRoutesMixin:
             if error_response is not None:
                 return error_response
 
-            if "thumbnail_location" in data:
-                # #320: only the Move thumbnails job changes the location.
-                return needs_move_response()
             expected_revision = data.get("expected_revision")
             if expected_revision is not None and not isinstance(expected_revision, str):
                 return web.json_response(
@@ -586,8 +576,7 @@ class SettingsRoutesMixin:
             for key in _THUMBNAIL_SETTINGS
         )
         job = self._jobs.active(THUMBNAILS_JOB_KIND) if changed else None
-        # A move copies previews of the current settings (#320).
-        if job is None or job.scope.get("mode") not in ("convert", "move"):
+        if job is None or job.scope.get("mode") != "convert":
             return None
         return web.json_response(
             {

py/api/sources.py

@@ -30,8 +30,6 @@ import ntpath
 import os
 import re
 
-from .preview_location import HOLDS_THUMBNAILS_REASON
-
 logger = logging.getLogger("prompt_manager.api")
 
 MAX_SOURCE_PATH = 4096  # characters
@@ -116,26 +114,7 @@ def source_problem(text):
     code = source_form_error(text)
     if code is not None:
         return code, FORM_REASONS[code]
-    code, reason = GalleryConfig.gallery_root_problem(text)
-    if code is None and _holds_thumbnails(GalleryConfig.resolve_gallery_root(text)):
-        return "holds-thumbnails", HOLDS_THUMBNAILS_REASON
-    return code, reason
-
-
-def _holds_thumbnails(path):
-    """Whether *path* is inside or around the thumbnail folder in use (#320):
-    a source there would list Prompt Manager's own previews."""
-    from . import preview_store
-
-    try:
-        from ...utils.library_location import _inside_any
-    except ImportError:  # tests import the package top-level
-        from utils.library_location import _inside_any
-
-    setting = preview_store.setting()
-    if setting.mode != preview_store.FOLDER_MODE or not setting.path:
-        return False
-    return _inside_any(path, [setting.path]) or _inside_any(setting.path, [path])
+    return GalleryConfig.gallery_root_problem(text)
 
 
 def public_spelling(text):

py/api/thumbnail_auto.py

@@ -67,7 +67,7 @@ from pathlib import Path
 
 from aiohttp import web
 
-from . import preview_store, thumbnail_settings
+from . import thumbnail_settings
 from .images import (
     in_trash_below_roots,
     MEDIA_EXTENSIONS,
@@ -78,7 +78,7 @@ from .images import (
     _thumbnail_is_fresh,
     _video_placeholder_image,
     _worker_threads,
-    media_preview_path,
+    media_thumbnail_rel,
 )
 from .jobs import (
     DUPLICATE_CLEANUP_JOB_KIND,
@@ -158,36 +158,6 @@ def _dst_key(dst):
     return flight_key(Path(dst).parent, (Path(dst).name,))
 
 
-class DeferredPreview:
-    """The preview of *rel* under *root*, resolved when its write starts
-    (#320): a queued capture follows the thumbnail location at write time,
-    not the one when it was queued."""
-
-    __slots__ = ("root", "rel", "strict")
-
-    def __init__(self, root, rel, *, strict=True):
-        self.root = Path(root)
-        self.rel = Path(rel)
-        # A capture refuses a store linked out of its container (the serve
-        # route's rule); a planned target keeps the plan's rule: inside the
-        # store, as the thumbnail job writes it.
-        self.strict = strict
-
-    def resolve(self):
-        """The preview's path now, or None when nothing may be written."""
-        dst = media_preview_path(self.root, self.rel, create=True)
-        if dst is None:
-            return None
-        if self.strict:
-            return dst if preview_store.owns(self.root, dst) else None
-        store = preview_store.store_dir(self.root)
-        return dst if _is_within(dst, store) else None
-
-
-def _resolved(dst):
-    return dst.resolve() if isinstance(dst, DeferredPreview) else Path(dst)
-
-
 @functools.lru_cache(maxsize=1)
 def video_placeholder_jpeg():
     """The placeholder frame as JPEG bytes (a video whose preview is missing)."""
@@ -245,19 +215,10 @@ def _candidates(parts):
 def _current_preview(root, parts):
     """The preview *parts* names, in the format written now (#317): a request
     for an older name (``_thumb.png`` before a conversion) is answered with
-    the current file. None when the store of *root* has no place for it."""
+    the current file."""
     _folder, base, _wanted = _candidates(parts)
     name = base + thumbnail_settings.THUMB_SUFFIX + writer_settings().extension
-    return preview_store.request_path(root, (*parts[:-1], name))
-
-
-def _request_key(root, parts):
-    """The flight key of the preview *parts* under *root*: the key of its
-    disk path (so the serve and history routes share one flight)."""
-    path = preview_store.request_path(root, parts)
-    if path is None:
-        return flight_key(root, parts)
-    return _dst_key(path)
+    return Path(root).joinpath(*parts[:-1], name)
 
 
 def _quick_source(root, parts):
@@ -298,14 +259,12 @@ def _thumbnail_source(root, parts):
     if in_trash_below_roots(found, [root]):
         return None
     rel = Path(*folder_parts, found.name)
-    dst = media_preview_path(root, rel, create=True)
-    if dst is None:
-        # Nowhere to write (the thumbnail folder is unavailable): the
-        # original is served and nothing is written.
-        return found, None, found.suffix.lower() in VIDEO_EXTENSIONS
+    dst = root / media_thumbnail_rel(rel)
     if dst != _current_preview(root, parts):
         return None
-    if not preview_store.owns(root, dst):
+    if not _is_within(root / "thumbnails", root) or not _is_within(
+        dst, root / "thumbnails"
+    ):
         dst = None
     return found, dst, found.suffix.lower() in VIDEO_EXTENSIONS
 
@@ -325,21 +284,6 @@ def _scan_folder(folder, base, extensions):
     return None
 
 
-def _deferred(roots, src, dst):
-    """The ``DeferredPreview`` of a planned ``(src, dst)``: the root whose
-    store the plan wrote *dst* into (nested roots plan one each); *dst* as
-    planned when none matches."""
-    src = Path(src)
-    for root in roots:
-        root = Path(root)
-        if not src.is_relative_to(root):
-            continue
-        rel = src.relative_to(root)
-        if media_preview_path(root, rel) == Path(dst):
-            return DeferredPreview(root, rel, strict=False)
-    return dst
-
-
 def _stop_stale_workers():
     """Stop capture workers a previous import of this module started."""
     for thread in threading.enumerate():
@@ -481,23 +425,16 @@ class AutoThumbnailer:
 
     def enqueue(self, src, dst, is_video):
         """Queue *dst*'s preview for the worker; False when already queued,
-        full, closed, nowhere to write it or its worker is refused at
-        interpreter exit. Never blocks on a write. *dst* may be a
-        ``DeferredPreview``: its path is resolved again when the write
-        starts."""
-        now = _resolved(dst)
-        if now is None:
-            return False
-        key = _dst_key(now)
-        if not isinstance(dst, DeferredPreview):
-            dst = now
+        full, closed or its worker is refused at interpreter exit. Never
+        blocks on a write."""
+        key = _dst_key(dst)
         with self._changed:
             if self._closed or key in self._queued:
                 return False
             if len(self._queue) >= self._max_queued:
                 return False
             self._queued.add(key)
-            self._queue.append((key, Path(src), dst, bool(is_video)))
+            self._queue.append((key, Path(src), Path(dst), bool(is_video)))
             self._busy = True
             started = True
             if self._start_worker and not self._worker_running:
@@ -577,9 +514,6 @@ class AutoThumbnailer:
     def _write_queued(self, item):
         _key, src, dst, is_video = item
         try:
-            dst = _resolved(dst)
-            if dst is None:
-                return  # nowhere to write it now: made on its first view
             self.ensure(src, dst, is_video)
         except Exception:  # one file never stops the worker
             self._logger.warning(
@@ -749,8 +683,6 @@ class AutoThumbnailMixin:
             pool.shutdown(wait=False, cancel_futures=True)
         if final:
             shutdown_encoders()  # kill JPEG XL / ffmpeg encoders still running
-            # The thumbnail folder's probe (#320), bounded like the rest.
-            closed = preview_store.stop_probe() and closed
         return closed
 
     def _auto_thumbnail_failures(self):
@@ -775,9 +707,6 @@ class AutoThumbnailMixin:
                 return job
             if job.kind == THUMBNAILS_JOB_KIND and job.title == THUMBNAIL_CLEAR_TITLE:
                 return job
-            # Move thumbnails holds automatic previews for its whole run (D2A).
-            if job.kind == THUMBNAILS_JOB_KIND and job.scope.get("mode") == "move":
-                return job
         return None
 
     # ── the view admission ────────────────────────────────────────────
@@ -918,7 +847,7 @@ class AutoThumbnailMixin:
         for root in output_dirs:
             root = Path(root)
             outcome = await gate.run(
-                _request_key(root, parts),
+                flight_key(root, parts),
                 functools.partial(self._preview_on_demand, root, parts),
                 pool,
             )
@@ -931,7 +860,7 @@ class AutoThumbnailMixin:
                     continue
                 return self._preview_response(BUSY, quick[0], None, quick[1])
             dst = _current_preview(root, parts)
-            if outcome == READY and dst is not None:
+            if outcome == READY:
                 return self._file_response(dst)
             located = await gate.loop.run_in_executor(
                 pool, _thumbnail_source, root, parts
@@ -954,31 +883,17 @@ class AutoThumbnailMixin:
         """
         if self._auto_thumbnails_shut:
             return "skipped"
-        located = self._capture_source(image_path)
+        located = self._capture_target(image_path)
         if located is None:
             return "skipped"
-        src, root, rel, is_video = located
-        dst = DeferredPreview(root, rel).resolve()
-        if dst is None:
-            return "skipped"
+        src, dst, is_video = located
         if _thumbnail_is_fresh(src, dst):
             return "fresh"
-        if self._auto_thumbnails().enqueue(src, DeferredPreview(root, rel), is_video):
+        if self._auto_thumbnails().enqueue(src, dst, is_video):
             return "queued"
         return "skipped"
 
     def _capture_target(self, image_path):
-        """``(src, dst, is_video)`` of a new output's preview now, or None."""
-        located = self._capture_source(image_path)
-        if located is None:
-            return None
-        src, root, rel, is_video = located
-        dst = DeferredPreview(root, rel).resolve()
-        return None if dst is None else (src, dst, is_video)
-
-    def _capture_source(self, image_path):
-        """``(src, root, rel, is_video)`` of a media file under a current
-        root (not a preview, a link or in a trash folder), or None."""
         path = Path(os.path.abspath(str(image_path)))
         if path.suffix.lower() not in MEDIA_EXTENSIONS or not _regular_file(path):
             return None
@@ -991,7 +906,12 @@ class AutoThumbnailMixin:
             rel = Path(os.path.relpath(path, root))
             if "thumbnails" in rel.parts[:-1] or in_trash_below_roots(path, [root]):
                 return None
-            return path, root, rel, path.suffix.lower() in VIDEO_EXTENSIONS
+            dst = root / media_thumbnail_rel(rel)
+            if not _is_within(root / "thumbnails", root) or not _is_within(
+                dst, root / "thumbnails"
+            ):
+                return None
+            return path, dst, path.suffix.lower() in VIDEO_EXTENSIONS
         return None
 
     # ── after a scan ──────────────────────────────────────────────────
@@ -1033,7 +953,7 @@ class AutoThumbnailMixin:
             return "none"
         thumbnailer = self._auto_thumbnails()
         for src, dst, is_video in plan["targets"]:
-            thumbnailer.enqueue(src, _deferred(output_dirs, src, dst), is_video)
+            thumbnailer.enqueue(src, dst, is_video)
         self.logger.info(f"{missing:,} previews missing after the scan; queued")
         return "queued"
 

py/api/thumbnail_convert.py

@@ -44,7 +44,7 @@ import os
 import time
 from pathlib import Path
 
-from . import preview_store, thumbnail_settings
+from . import thumbnail_settings
 from .thumbnail_encode import ThumbnailVerifyError, verify_thumbnail, writer_settings
 from .admin import _plural, _scan_location, _scan_roots, _scan_status_line
 from .images import _thumbnail_is_fresh, _worker_threads, _thumbnail_batch_size
@@ -393,12 +393,6 @@ class ThumbnailConvertMixin:
         removed, with no bytes (another run or a sibling removed it)."""
         removed, kept = 0, []
         for path, size in old:
-            if not preview_store.may_write(path):
-                # Folder mode: never a file outside a key folder, or one
-                # reached through a link (checked at the moment of the delete).
-                self.logger.warning(f"Not removing {path}: outside the thumbnails")
-                kept.append(path)
-                continue
             try:
                 os.remove(path)
             except FileNotFoundError:

py/api/thumbnail_encode.py

@@ -46,7 +46,7 @@ from pathlib import Path
 
 from PIL import Image
 
-from . import preview_location, preview_store, thumbnail_settings
+from . import thumbnail_settings
 
 try:
     from ...utils.logging_config import get_logger
@@ -101,20 +101,14 @@ def temp_sibling(dst, tag="part"):
 
 
 def replace_unless_held(tmp, dst, guard=None):
-    """Rename *tmp* over *dst*, unless ``guard()`` is false (PreviewWriteHeld).
-
-    The check and the rename run under ``preview_store.write_lock`` (#320): a
-    guard from ``preview_store.write_guard`` also refuses a write that started
-    before the thumbnail location changed."""
-    with preview_store.committed(guard) as allowed:
-        if not allowed:
-            raise PreviewWriteHeld(PREVIEW_HELD)
-        os.replace(tmp, dst)
+    """Rename *tmp* over *dst*, unless ``guard()`` is false (PreviewWriteHeld)."""
+    if guard is not None and not guard():
+        raise PreviewWriteHeld(PREVIEW_HELD)
+    os.replace(tmp, dst)
 
 
 # ``temp_sibling``'s names: ``.<stem>.<tag>-<pid>-<thread id><ext>``.
 _TEMP_NAME = re.compile(r"^\..+\.(?:part|src)-(\d+)-\d+\.[A-Za-z0-9]+$")
-_MOVE_TEMP_NAME = re.compile(r"\.pm-move-[0-9a-f]{8}\.tmp$")
 # A temp at least this old (seconds) outlived its write: no encode runs longer.
 STRAY_TEMP_AGE = 4 * ENCODE_TIMEOUT
 # When this process started (this module's import): a temp carrying its PID
@@ -126,10 +120,7 @@ def sweep_stray_temps(folder, min_age=None):
     """Remove the temp files a crashed write left under *folder* (a preview
     folder, walked without following links); returns ``(count, bytes)``.
 
-    Only ``temp_sibling`` names are touched, never a link: a folder that is a
-    link, junction or reparse point is not walked into (Windows walks into a
-    junction even without ``followlinks``), and each file passes
-    ``preview_store.may_write`` before it goes. With *min_age*
+    Only ``temp_sibling`` names are touched, never a link. With *min_age*
     (seconds, the startup sweep) a temp younger than that, or one this
     process wrote since it started (it may still be writing it), is left;
     ``min_age=0`` (the clear, which holds every preview write) removes them
@@ -139,39 +130,19 @@ def sweep_stray_temps(folder, min_age=None):
     now = time.time()
     own = str(os.getpid())
     count = size = 0
-    try:
-        if preview_location.is_link_like(folder):
-            return count, size
-    except OSError as exc:
-        logger.debug(f"Not sweeping {folder}: {exc}")
-        return count, size
-    for root, dirs, files in os.walk(folder):
-        dirs[:] = [d for d in dirs if not _link_like(Path(root) / d)]
+    for root, _dirs, files in os.walk(folder):
         for name in files:
             match = _TEMP_NAME.match(name)
-            # A move's copy temp (#320): ``<name>.pm-move-<8 hex>.tmp``.
-            move_temp = match is None and _MOVE_TEMP_NAME.search(name)
-            if match is None and not move_temp:
+            if match is None:
                 continue
             path = Path(root) / name
             try:
                 stat = path.lstat()
-                if (
-                    path.is_symlink()
-                    or not path.is_file()
-                    or _link_like(path)
-                    or not preview_store.may_write(path)
-                ):
+                if path.is_symlink() or not path.is_file():
                     continue
                 if min_age and (
                     now - stat.st_mtime < min_age
-                    or move_temp
-                    and stat.st_mtime >= PROCESS_STARTED
-                    or (
-                        match is not None
-                        and match.group(1) == own
-                        and stat.st_mtime >= PROCESS_STARTED
-                    )
+                    or (match.group(1) == own and stat.st_mtime >= PROCESS_STARTED)
                 ):
                     continue
                 path.unlink()
@@ -183,14 +154,6 @@ def sweep_stray_temps(folder, min_age=None):
     return count, size
 
 
-def _link_like(path):
-    """``is_link_like``, with a path that cannot be checked counted as one."""
-    try:
-        return preview_location.is_link_like(path)
-    except OSError:
-        return True
-
-
 def _unlink_quietly(path):
     try:
         Path(path).unlink()

py/api/thumbnail_jobs.py

@@ -49,7 +49,6 @@ from .images import (
     _worker_threads,
 )
 from .job_routes import busy_response
-from .thumbnail_location import location_refusal
 from .jobs import THUMBNAIL_GROUP_NAMES, THUMBNAILS_JOB_KIND, JobBusy
 from .thumbnail_convert import CONVERT_JOB_TITLE
 from .thumbnail_encode import writer_settings
@@ -132,10 +131,7 @@ class ThumbnailJobsMixin:
     """The thumbnail plan, the thumbnail job and the legacy stream on it."""
 
     async def get_thumbnail_plan(self, request):
-        """What a thumbnail run would do (read-only; capped like a run).
-        ``mode=prune`` lists the removed sources' thumbnails (#320)."""
-        if request.query.get("mode") == "prune":
-            return await self.get_prune_plan()
+        """What a thumbnail run would do (read-only; capped like a run)."""
         options, error = thumbnail_options(request.query, from_query=True)
         if error:
             return _invalid(error)
@@ -183,39 +179,15 @@ class ThumbnailJobsMixin:
                 )
             except (ValueError, UnicodeDecodeError):
                 return _invalid(_OPTIONS_ERROR)
-        if isinstance(body, dict) and body.get("mode") in ("move", "prune"):
-            return await self._start_location_job(body)
         options, error = thumbnail_options(body)
         if error:
             return _invalid(error)
-        refused = location_refusal()
-        if refused is not None:
-            return refused
         try:
             job = self._start_thumbnail_job(options)
         except JobBusy as busy:
             return busy_response(busy)
         return web.json_response({"success": True, "job": job.summary()}, status=202)
 
-    async def _start_location_job(self, body):
-        """Move thumbnails or Remove thumbnails of removed sources (#320)."""
-        if body["mode"] == "prune":
-            refused = location_refusal()
-            if refused is not None:
-                return refused
-        try:
-            if body["mode"] == "move":
-                started = self.start_thumbnail_move(body)
-            else:
-                started = self.start_thumbnail_prune()
-        except JobBusy as busy:
-            return busy_response(busy)
-        if isinstance(started, web.Response):
-            return started
-        return web.json_response(
-            {"success": True, "job": started.summary()}, status=202
-        )
-
     def _start_thumbnail_job(self, options):
         """Register the thumbnail job synchronously; raises JobBusy.
 
@@ -487,12 +459,8 @@ class ThumbnailJobsMixin:
         or attaches to the running thumbnail job, and streams its frames. A
         legacy hold (the blocking generate or clear) or a record-changing
         job refuses it with the stream's error frame. The job goes on when
-        the client goes away. Refused (409) while the thumbnail folder is
-        unavailable (#320).
+        the client goes away.
         """
-        refused = location_refusal()
-        if refused is not None:
-            return refused
         response = web.StreamResponse(
             status=200,
             headers={
@@ -539,12 +507,8 @@ class ThumbnailJobsMixin:
         the way.
         """
         running = self._jobs.active(THUMBNAILS_JOB_KIND)
-        if running is not None and running.scope.get("mode") in (
-            "convert",
-            "move",
-            "prune",
-        ):
-            return None, False, running  # no legacy frames to follow (#317, #320)
+        if running is not None and running.scope.get("mode") == "convert":
+            return None, False, running  # no legacy frames to follow (#317)
         if running is not None and running.cancellable:
             return running, False, None
         busy = self._jobs.blocker(THUMBNAILS_JOB_KIND, admission="guarded")

py/api/thumbnail_location.py

@@ -1,162 +0,0 @@
-"""The thumbnail location on the API (#320): startup, the settings payload
-and the refusals while the thumbnail folder is unavailable.
-
-The setting itself is config.json ``thumbnails.location``
-(``preview_location``); the runtime state is ``preview_store``. POST
-``/settings`` never changes it (409 ``location-needs-move``): the Move
-thumbnails job is its only writer.
-"""
-
-import os
-
-from aiohttp import web
-
-from . import preview_location, preview_store
-
-try:
-    from ...utils import library_location
-except ImportError:  # tests import the package top-level
-    from utils import library_location
-
-# The node folder (its web/ is served and a reinstall wipes it).
-NODE_FOLDER = os.path.dirname(
-    os.path.dirname(os.path.dirname(os.path.abspath(__file__)))
-)
-
-
-def default_path():
-    """``<data folder>/data/thumbnails`` (D7B), or None when unknown."""
-    try:
-        return library_location.cache_dir("thumbnails")
-    except Exception:  # no data folder can be decided: no default
-        return None
-
-
-def location_refusal(location=None):
-    """The 409 ``location-unavailable`` response while the thumbnail folder
-    is unavailable, else None (thumbnail generate, convert, clear, prune)."""
-    location = location or preview_store.current()
-    if location.mode != preview_store.FOLDER_MODE or location.available:
-        return None
-    status, text = preview_location.message("location-unavailable")
-    return web.json_response(
-        {"success": False, "code": "location-unavailable", "error": text},
-        status=status,
-    )
-
-
-def needs_move_response():
-    status, text = preview_location.message("location-needs-move")
-    return web.json_response(
-        {"success": False, "code": "location-needs-move", "error": text},
-        status=status,
-    )
-
-
-class ThumbnailLocationMixin:
-    """Startup check and payloads of the thumbnail location."""
-
-    def _all_source_roots(self):
-        """Every image source of every root list: the Images roots, the
-        configured sources and the extra gallery roots (as strings)."""
-        from ..config import GalleryConfig, _extra_gallery_roots
-
-        roots = [str(root) for root in self._get_all_output_dirs()]
-        roots += [str(root) for root in GalleryConfig.MONITORING_DIRECTORIES]
-        roots += list(_extra_gallery_roots())
-        return tuple(dict.fromkeys(root for root in roots if root))
-
-    def _thumbnail_location_context(self):
-        """What a thumbnail folder is validated against (blocking)."""
-        contained = []
-        try:
-            import folder_paths
-
-            for name in (
-                "get_output_directory",
-                "get_input_directory",
-                "get_temp_directory",
-            ):
-                getter = getattr(folder_paths, name, None)
-                folder = getter() if getter is not None else None
-                if folder:
-                    contained.append(str(folder))
-        except ImportError:
-            pass  # folder_paths exists only inside ComfyUI (tests run without it)
-        try:
-            contained.append(library_location.config_location()[1])
-        except Exception:  # no data folder can be decided
-            self.logger.debug("No library folder for the thumbnail check")
-        setting = preview_store.setting()
-        return preview_location.Context(
-            roots=self._all_source_roots(),
-            contained=tuple(contained),
-            node_folder=NODE_FOLDER,
-            default_path=default_path(),
-            current_path=(
-                setting.path if setting.mode == preview_store.FOLDER_MODE else None
-            ),
-        )
-
-    def use_preview_location(self):
-        """Put the configured location in force at once, unchecked (the
-        package's import, before any request): folder mode is unavailable
-        until ``start_preview_location`` has checked it, so nothing is ever
-        written to the sources meanwhile. No filesystem access."""
-        from ..config import PromptManagerConfig
-
-        try:
-            return preview_store.configure(
-                PromptManagerConfig.THUMBNAIL_LOCATION, check=False
-            )
-        except Exception:
-            self.logger.warning("The thumbnail location is unusable", exc_info=True)
-            preview_store.mark_invalid()
-            return preview_store.current()
-
-    def start_preview_location(self):
-        """Parse and check the configured location once (startup thread);
-        the probe takes over. Never raises; a check that fails leaves a
-        folder location unavailable (``invalid``), never the sources."""
-        from ..config import PromptManagerConfig
-
-        try:
-            value = PromptManagerConfig.THUMBNAIL_LOCATION
-            parsed = preview_location.parse_location(value)
-            context = None
-            if parsed.mode == preview_store.FOLDER_MODE:
-                context = self._thumbnail_location_context()
-            location = preview_store.configure(value, context=context)
-        except Exception:
-            self.logger.warning("The thumbnail location check failed", exc_info=True)
-            if (
-                preview_location.parse_location(
-                    PromptManagerConfig.THUMBNAIL_LOCATION
-                ).mode
-                == preview_store.FOLDER_MODE
-            ):
-                preview_store.mark_invalid()
-            return preview_store.current()
-        if location.mode == preview_store.FOLDER_MODE and not location.available:
-            self.logger.warning(
-                "The thumbnail folder is unavailable "
-                f"({location.problem or 'checking'}): originals are shown and "
-                "no thumbnails are written until it is back"
-            )
-        return location
-
-    def _thumbnail_location_payload(self, *, with_path):
-        """``{mode, available, problem}`` plus, for the settings GET only,
-        ``path`` and ``default_path`` (D6A)."""
-        location = preview_store.current()
-        payload = {
-            "mode": location.mode,
-            "available": location.available,
-            "problem": location.problem,
-        }
-        if with_path:
-            payload["path"] = location.path
-            payload["default_path"] = default_path()
-            # Old copies a move still has to remove (#320 Part 3).
-            payload["cleanup_pending"] = len(preview_store.setting().cleanup)
-        return payload

py/api/thumbnail_move.py

@@ -1,579 +0,0 @@
-"""Move thumbnails (#320 Part 3): the reviewed job that changes where previews
-live, the removal of old copies after it, recovery at startup and the
-"Remove thumbnails of removed sources" scope (Part 5).
-
-Kind ``thumbnails`` with ``mode: "move"`` (D1A): admission ``guarded``, so
-scans, deletes, tagging, source changes and every other thumbnail job wait
-for it, while the monitor's Needs review recording runs beside it.
-Automatic previews are held for the whole job (D2A, ``_auto_thumbnail_blocker``).
-
-Phases: review (``POST /images/thumbnails/plan``, no writes but the
-validation probe), start (a plan token), hold (generation bump, journal,
-target folder), copy (cancellable at every file boundary, on the job pool
-in small chunks, D3A), switch (one config commit sets the location and
-records the old stores under ``cleanup``; not cancellable from here),
-remove old copies, end. Per-file errors switch anyway (D10A); a folder-wide
-error or a cancel before the switch removes what the job wrote and changes
-nothing. The move is the only writer of the setting (D4B).
-
-Moving away from a thumbnail folder also removes the previews of this
-install's sources that are no longer listed (Q320-8: remove).
-"""
-
-import functools
-import os
-import time
-from pathlib import Path
-
-from aiohttp import web
-
-from . import preview_location, preview_store
-from . import thumbnail_move_files as files
-from .jobs import THUMBNAILS_JOB_KIND
-from .thumbnail_move_plan import (
-    MOVE_GROUPS,
-    MOVE_TITLE,
-    PLAN_TTL,
-    _number,
-    _plural,
-    _remove,
-    _roots_revision,
-    _volume,
-    _is_network,
-    _write_json,
-)
-from . import thumbnail_move_plan as move_plan
-
-try:
-    from ...utils import exit_signal
-    from ...utils.parallel import map_parallel
-except ImportError:  # tests import the package top-level
-    from utils import exit_signal
-    from utils.parallel import map_parallel
-
-
-class ThumbnailMoveMixin:
-    """Start and run the move job; the removal of old copies."""
-
-    # ── start ─────────────────────────────────────────────────────────
-
-    def _take_move_plan(self, body):
-        """The plan a start names, or ``(status, code)``."""
-        token = body.get("token")
-        plan = (self._move_plans or {}).get(token) if isinstance(token, str) else None
-        if plan is None or time.monotonic() - plan.created > PLAN_TTL:
-            return 409, "plan-stale"
-        roots = [str(root) for root in self._get_all_output_dirs()]
-        if _roots_revision(roots) != plan.revision:
-            return 409, "plan-stale"
-        if preview_store.setting() != plan.old:
-            return 409, "plan-stale"
-        if plan.confirm_required and body.get("confirmed") is not True:
-            return 400, "confirmation-required"
-        return plan
-
-    def start_thumbnail_move(self, body):
-        """Start the move job (sync, on the loop); raises JobBusy. Returns
-        the job or a refusal response."""
-        if not self._move_recovered:
-            blocker = self._jobs.active(THUMBNAILS_JOB_KIND)
-            return web.json_response(
-                {
-                    "success": False,
-                    "code": "busy",
-                    "error": "Prompt Manager is still checking an earlier move. "
-                    "Try again in a moment.",
-                    "running": None if blocker is None else {"id": blocker.id},
-                },
-                status=409,
-            )
-        taken = self._take_move_plan(body)
-        if isinstance(taken, tuple):
-            status, code = taken
-            text = {
-                "plan-stale": "The review is out of date. Review the move again.",
-                "confirmation-required": "Confirm that Prompt Manager may "
-                "create its folders there.",
-            }[code]
-            return web.json_response(
-                {"success": False, "code": code, "error": text}, status=status
-            )
-        plan = taken
-        self._move_plans.pop(plan.token, None)
-        return self._jobs.start(
-            THUMBNAILS_JOB_KIND,
-            MOVE_TITLE,
-            admission="guarded",
-            cancellable=True,
-            scope={
-                "mode": "move",
-                "from": plan.old.mode,
-                "to": plan.target["mode"],
-                "to_path": plan.target["path"],
-            },
-            groups=MOVE_GROUPS,
-            runner=functools.partial(self._run_thumbnail_move, plan=plan),
-        )
-
-    # ── the job ───────────────────────────────────────────────────────
-
-    async def _run_thumbnail_move(self, job, *, plan):
-        state = {"written": [], "created": [], "created_folder": False}
-        try:
-            await self._run_in_executor(self._move_hold, job, plan, state)
-        except (OSError, ValueError) as error:
-            await self._run_in_executor(self._move_rollback, plan, state)
-            self._end_move(
-                job, "failed", "The new folder could not be made; nothing changed."
-            )
-            self.logger.warning(f"Move thumbnails could not start: {error}")
-            return
-        left = [
-            {
-                "path": "/".join(item),
-                "root": s.label,
-                "detail": "Not a thumbnail; left in place",
-            }
-            for s in plan.sources
-            if s.scan is not None
-            for item in s.scan.left
-        ]
-        if left:
-            job.record_counted("left", len(left), left)
-        items = [
-            (source, item)
-            for source in plan.sources
-            if source.scan is not None
-            for item in source.scan.copy
-        ]
-        total = len(items)
-        job.update(total=total, processed=0, progress=0)
-        chunk = await self._run_in_executor(self._move_chunk, plan)
-        workers = self._move_workers()
-        done = 0
-        for start in range(0, total, chunk):
-            if job.cancelled:
-                await self._move_cancelled(job, plan, state)
-                return
-            batch = items[start : start + chunk]
-            try:
-                results = await self._run_in_executor(
-                    map_parallel,
-                    functools.partial(self._move_copy_one, state=state),
-                    batch,
-                    workers,
-                )
-            except exit_signal.ExitRequested:
-                return  # exiting: the next start undoes the copies (journal)
-            except files.FolderGone as error:
-                self.logger.warning(f"Move thumbnails stopped: {error}")
-                await self._run_in_executor(self._move_rollback, plan, state)
-                self._end_move(
-                    job,
-                    "failed",
-                    "The new folder could not be reached or is full; nothing changed.",
-                )
-                return
-            except Exception:
-                # Anything else before the switch: undo, never half a move.
-                self.logger.exception("Move thumbnails failed while copying")
-                await self._run_in_executor(self._move_rollback, plan, state)
-                self._end_move(job, "failed", "The copy failed; nothing changed.")
-                return
-            for (source, item), (outcome, detail) in zip(batch, results):
-                row = {
-                    "path": "/".join(item[0]),
-                    "root": source.label,
-                    "detail": detail,
-                }
-                job.record(
-                    "moved" if outcome == "moved" else outcome,
-                    row,
-                    f"{outcome}: {source.label} · {'/'.join(item[0])}",
-                )
-            done += len(batch)
-            label = batch[-1][0].label
-            job.update(
-                processed=done,
-                progress=int(done * 90 / total) if total else 90,
-                status_line=(
-                    f"Copying {_number(done)} of {_number(total)} previews · {label}"
-                ),
-            )
-            job.publish({"type": "progress", "summary": job.summary()})
-        if job.cancelled:
-            await self._move_cancelled(job, plan, state)
-            return
-        # The switch: not cancellable from here (an exit still stops between
-        # files and leaves the cleanup to the next start).
-        job.cancellable = False
-        job.update(status_line="Switching to the new location", progress=92)
-        job.publish({"type": "progress", "summary": job.summary()})
-        try:
-            await self._run_in_executor(self._move_switch, plan)
-        except Exception:
-            self.logger.exception("Move thumbnails could not switch")
-            await self._run_in_executor(self._move_rollback, plan, state)
-            self._end_move(
-                job, "failed", "The setting could not be saved; nothing changed."
-            )
-            return
-        await self._remove_old_copies(job, plan)
-        moved = job.counters.get("moved", 0) + job.counters.get("skipped", 0)
-        errors = job.counters.get("errors", 0)
-        where = plan.target["path"] or "inside each source"
-        parts = [f"{_number(moved)} moved"]
-        if errors:
-            parts.append(_plural(errors, "error"))
-        parts.append(
-            "old copies removed"
-            if not job.scope.get("cleanup_left")
-            else "some old copies are removed at the next start"
-        )
-        self._end_move(
-            job, "finished", f"Thumbnails moved to {where}: " + " · ".join(parts) + "."
-        )
-
-    def _end_move(self, job, state, line):
-        job.update(status_line=line, progress=100)
-        job.log_line(line)
-        job.publish({"type": "complete", "summary": job.summary()})
-        job.finish(state)
-
-    def _move_workers(self):
-        from .images import _worker_threads
-
-        return max(1, int(_worker_threads() or 1))
-
-    def _move_chunk(self, plan):
-        """2 files at a time across volumes or to/from a share, else 4, never
-        more than Worker threads (D3A: the pool keeps its size)."""
-        sides = [plan.target["path"] or ""] + [s.old_store or "" for s in plan.sources]
-        sides += [s.new_store for s in plan.sources]
-        network = any(_is_network(side) for side in sides if side)
-        volumes = {_volume(side) for side in sides if side}
-        size = 2 if network or len(volumes) > 1 else 4
-        return max(1, min(size, self._move_workers()))
-
-    def _move_hold(self, job, plan, state):
-        """Phase 3: bump the generation, write the journal, make the target."""
-        preview_store.bump_generation()
-        if plan.to_folder:
-            folder = plan.target["path"]
-            if not os.path.isdir(folder):
-                if plan.target_default:
-                    os.makedirs(folder, exist_ok=True)
-                else:
-                    os.mkdir(folder)
-                state["created_folder"] = True
-            plan.target_id = preview_location.init_folder(
-                folder, created_by_pm=state["created_folder"]
-            )
-            install = plan.install
-
-            def add_keys(marker):
-                for source in plan.sources:
-                    if source.key and source.key not in marker["keys"]:
-                        marker["keys"][source.key] = {
-                            "path": source.root,
-                            "identity": os.path.normcase(os.path.realpath(source.root)),
-                            "dev_ino": preview_location.file_identity(source.root),
-                            "install": install,
-                        }
-
-            with preview_store.write_lock:
-                preview_location.write_marker(folder, add_keys)
-        _write_json(
-            move_plan.journal_path(),
-            {
-                "state": "copying",
-                "from": plan.old.to_config(),
-                "to": plan.target,
-                "stores": [s.new_store for s in plan.sources],
-                # Stores that do not exist yet are made by this job only:
-                # after a crash everything in them goes (B4).
-                "created_dirs": [
-                    s.new_store for s in plan.sources if not os.path.isdir(s.new_store)
-                ],
-                "created_folder": state["created_folder"],
-                "install": plan.install,
-            },
-        )
-        job.log_line(
-            f"Move thumbnails started: {plan.old.path or 'inside each source'} → "
-            f"{plan.target['path'] or 'inside each source'}"
-        )
-
-    def _move_copy_one(self, pair, *, state):
-        """Copy one preview (a pool thread); ``(group, detail)``."""
-        source, (relative, size, mtime_ns) = pair
-        destination = Path(source.new_store).joinpath(*relative)
-        try:
-            if not os.path.isdir(destination.parent):
-                base = Path(source.new_store)
-                if not base.is_dir():
-                    if plan_parent_missing(base):
-                        raise files.FolderGone("the new folder is gone")
-                    created = []
-                    files._make_folders(base.parent, (base.name,), created)
-                    state["created"].extend(created)
-                created = []
-                files._make_folders(base, relative[:-1], created)
-                state["created"].extend(created)
-            # Also when the folders already exist (Codex P1 on #592).
-            files.refuse_links(source.new_store, relative[:-1])
-            outcome = files.copy_one(
-                Path(source.old_store).joinpath(*relative),
-                destination,
-                size,
-                mtime_ns,
-                state["created"],
-            )
-        except files.CopyFailed as error:
-            return "errors", str(error)
-        if outcome == "moved":
-            state["written"].append(str(destination))
-            return "moved", "Copied and checked"
-        return "skipped", "Already there"
-
-    async def _move_cancelled(self, job, plan, state):
-        if exit_signal.requested():
-            return  # the next start removes the partial copies (journal)
-        await self._run_in_executor(self._move_rollback, plan, state)
-        self._end_move(job, "cancelled", "Move cancelled: nothing changed.")
-
-    def _move_rollback(self, plan, state):
-        """Remove what this job wrote (files, folders it made, a folder and
-        marker it created) and the journal: nothing changed."""
-        for path in state["written"]:
-            files.remove_file(path)
-        for folder in reversed(state["created"]):
-            files.remove_empty_folders(folder)
-        if plan.to_folder and state.get("created_folder"):
-            folder = plan.target["path"]
-            try:
-                names = os.listdir(folder)
-            except OSError:
-                names = None
-            if names is not None and set(names) <= {preview_location.MARKER_NAME}:
-                _remove(preview_location.marker_path(folder))
-                files.remove_empty_folders(folder)
-        _remove(move_plan.journal_path())
-
-    def _move_switch(self, plan):
-        """Phase 5: one config commit sets the location and records the old
-        stores under ``cleanup``; the runtime follows under the write lock."""
-        from ..config import PromptManagerConfig
-        from ..config_store import get_config_store
-
-        entry = {
-            "from": plan.old.mode,
-            "folder": plan.old.path if plan.from_folder else None,
-            "stores": [s.old_store for s in plan.sources if s.old_store],
-            "drop_keys": self._old_keys_to_drop(plan),
-            "install": plan.install,
-        }
-        # An older entry never removes a store the move just filled (a move
-        # back while old copies still waited).
-        filled = {os.path.normcase(s.new_store) for s in plan.sources}
-        cleanup = []
-        for old_entry in plan.old.cleanup:
-            stores = [
-                store
-                for store in old_entry.get("stores") or []
-                if isinstance(store, str) and os.path.normcase(store) not in filled
-            ]
-            folder = old_entry.get("folder")
-            drop = [
-                key
-                for key in old_entry.get("drop_keys") or []
-                if not folder
-                or os.path.normcase(os.path.join(folder, key)) not in filled
-            ]
-            cleanup.append({**old_entry, "stores": stores, "drop_keys": drop})
-        cleanup.append(entry)
-        if plan.to_folder:
-            value = {
-                "mode": preview_store.FOLDER_MODE,
-                "path": plan.target["path"],
-                "id": plan.target_id,
-                "install": plan.install,
-                "cleanup": cleanup,
-            }
-        else:
-            value = {
-                "mode": preview_store.SOURCE_MODE,
-                "install": plan.install,
-                "cleanup": cleanup,
-            }
-
-        def mutate(config):
-            section = config.get("thumbnails")
-            if not isinstance(section, dict):
-                section = {}
-            section["location"] = value
-            config["thumbnails"] = section
-            return config
-
-        def publish(_config):
-            PromptManagerConfig.THUMBNAIL_LOCATION = value
-            preview_store.configure(value, check=False)
-
-        get_config_store().commit(mutate, expected_revision=None, publish=publish)
-        # The switch is made: what follows never undoes it.
-        try:
-            preview_store.refresh()
-            _remove(move_plan.journal_path())
-        except OSError as error:
-            self.logger.warning(
-                f"The thumbnail move journal stays until the next start: {error}"
-            )
-
-    def _old_keys_to_drop(self, plan):
-        if not plan.from_folder:
-            return []
-        keys = [s.old_store and os.path.basename(s.old_store) for s in plan.sources]
-        keys = [key for key in keys if key]
-        if plan.to_folder and os.path.normcase(plan.old.path or "") == os.path.normcase(
-            plan.target["path"] or ""
-        ):
-            return []
-        return keys + [key for key, _store, _scan in plan.unlisted]
-
-    async def _remove_old_copies(self, job, plan):
-        """Phase 6: run the cleanup the switch recorded (and earlier ones)."""
-        job.update(status_line="Removing old copies", progress=95)
-        job.publish({"type": "progress", "summary": job.summary()})
-        left = await self._run_in_executor(self._run_cleanup, job)
-        if left:
-            job.scope["cleanup_left"] = True
-
-    def _run_cleanup(self, job=None):
-        """Remove every recorded old store's previews, temps and empty
-        folders; keep in ``cleanup`` what could not go. Returns how many
-        entries are left (blocking)."""
-        setting = preview_store.setting()
-        remaining = []
-        for entry in setting.cleanup:
-            if not self._cleanup_entry(entry, job):
-                remaining.append(entry)
-        if list(setting.cleanup) != remaining:
-            self._commit_cleanup(remaining)
-        return len(remaining)
-
-    def _cleanup_entry(self, entry, job):
-        """One recorded removal; True when it is complete."""
-        folder = entry.get("folder")
-        stores = [
-            store for store in entry.get("stores") or [] if isinstance(store, str)
-        ]
-        if folder:
-            if not os.path.isdir(folder):
-                return False  # the old folder is not reachable: kept for later
-            folder_marker = preview_location.read_marker(folder) or {}
-            keys = folder_marker.get("keys") or {}
-            stores += [
-                os.path.join(folder, key)
-                for key in entry.get("drop_keys") or []
-                if preview_location.valid_key(key) and key in keys
-            ]
-        complete = True
-        for store in dict.fromkeys(stores):
-            if not self._remove_store(store, folder, job):
-                complete = False
-        if folder and complete:
-            drop = set(entry.get("drop_keys") or [])
-
-            def forget(marker):
-                for key in drop:
-                    marker["keys"].pop(key, None)
-
-            try:
-                with preview_store.write_lock:
-                    marker = preview_location.write_marker(folder, forget)
-            except (OSError, ValueError):
-                return False
-            if not marker["keys"] and marker.get("created_by_pm"):
-                names = set(os.listdir(folder))
-                rest = {n for n in names if not files.is_os_metadata(n)}
-                if rest <= {preview_location.MARKER_NAME}:
-                    _remove(preview_location.marker_path(folder))
-                    files.remove_empty_folders(folder)
-        return complete
-
-    def _remove_store(self, store, folder, job):
-        """Remove the previews and temps of one old store; True when done."""
-        store = Path(store)
-        if folder:
-            # A key folder directly in the old thumbnail folder, nothing else.
-            if not preview_location.valid_key(store.name) or os.path.normcase(
-                str(store.parent)
-            ) != os.path.normcase(str(folder)):
-                return True
-        elif store.name != "thumbnails":
-            return True  # a hand-edited entry never names another folder
-        if not store.exists():
-            return True
-        if preview_location.is_link_like(store):
-            return True  # never through a link; nothing of ours there
-        complete = True
-        removed = 0
-        for current, dirs, names in os.walk(store):
-            dirs[:] = [
-                d for d in dirs if not preview_location.is_link_like(Path(current) / d)
-            ]
-            for name in names:
-                path = Path(current) / name
-                if files.is_temp_name(name) or files._preview_parts(name):
-                    if preview_location.is_link_like(path):
-                        continue
-                    if exit_signal.requested():
-                        return False  # exiting: the next start finishes it
-                    if files.remove_file(path):
-                        removed += 1
-                    else:
-                        complete = False
-                        relative = path.relative_to(store).as_posix()
-                        self.logger.warning(
-                            f"Could not remove the old thumbnail {path}; it is "
-                            "removed at the next start"
-                        )
-                        if job is not None:
-                            # D10A: a removal that failed is an error the job lists.
-                            job.record(
-                                "errors",
-                                {
-                                    "path": relative,
-                                    "root": store.name,
-                                    "detail": "In use by another program; removed "
-                                    "at the next start",
-                                },
-                                f"In use by another program; removed at the next "
-                                f"start: {store.name}/{relative}",
-                            )
-        files.remove_empty_folders(store)
-        if job is not None and removed:
-            job.log_line(f"Removed {_number(removed)} old files from {store.name}")
-        return complete
-
-    def _commit_cleanup(self, remaining):
-        from ..config import PromptManagerConfig
-        from ..config_store import get_config_store
-
-        def mutate(config):
-            section = config.get("thumbnails")
-            if isinstance(section, dict) and isinstance(section.get("location"), dict):
-                section["location"]["cleanup"] = remaining
-            return config
-
-        def publish(config):
-            value = (config.get("thumbnails") or {}).get("location")
-            PromptManagerConfig.THUMBNAIL_LOCATION = value
-            preview_store.set_cleanup(remaining)
-
-        get_config_store().commit(mutate, expected_revision=None, publish=publish)
-
-
-def plan_parent_missing(store):
-    """A key folder's parent (the thumbnail folder) is gone mid-copy."""
-    return not Path(store).parent.is_dir()

py/api/thumbnail_move_files.py

@@ -1,348 +0,0 @@
-"""The file side of Move thumbnails (#320 Part 3): what is copied, how a
-copy is made and checked, and how old copies are removed.
-
-No job, HTTP or config code lives here; ``thumbnail_move`` drives it.
-
-Copy set (B5): each old store is walked with ``os.scandir``, never through a
-symlink, junction or reparse point (counted as "skipped link"). A regular
-file is
-
-- copied when it has the preview grammar (``<name>_thumb<ext>``, any written
-  or legacy extension) and its original still exists in the source;
-- removed with the old copies, not copied, when it is an orphan (no
-  original), lies under a trash folder, or is a temp sibling of a write
-  (``.<stem>.part-…``) or of a move (``….pm-move-<8 hex>.tmp``);
-- left in place otherwise ("Left in place"). OS metadata files (``Thumbs.db``,
-  ``desktop.ini``, ``.DS_Store``, ``._*``) are removed only when they alone
-  keep a preview folder from being removed.
-
-A copy goes to ``<name>.pm-move-<8 hex>.tmp`` beside its destination, its
-size is compared, its mtime is set to the source preview's rounded up to the
-next 2-second step (FAT/exFAT keep it fresh, a stale preview stays stale),
-then it is renamed into place. Every handle is closed before a rename or an
-unlink (Windows).
-"""
-
-import errno
-import logging
-import os
-import re
-import secrets
-import shutil
-import stat as stat_module
-import time
-from dataclasses import dataclass, field
-from pathlib import Path
-
-from . import preview_location, thumbnail_settings
-from .thumbnail_encode import _TEMP_NAME
-
-try:
-    from ...utils.media_folders import in_trash_folder
-except ImportError:  # tests import the package top-level
-    from utils.media_folders import in_trash_folder
-
-logger = logging.getLogger("prompt_manager.thumbnails")
-
-MOVE_TEMP = re.compile(r"\.pm-move-[0-9a-f]{8}\.tmp$")
-MOVE_TEMP_SUFFIX = ".pm-move-{token}.tmp"
-# The temp name adds this much to a destination path (".pm-move-xxxxxxxx.tmp").
-TEMP_EXTRA = 21
-WINDOWS_FILE_LIMIT = 259
-MTIME_STEP_NS = 2_000_000_000
-# A file another program holds open (Windows) is retried this often.
-REMOVE_RETRIES = (0.5, 1.0, 2.0)
-_WINDOWS_IN_USE = {32, 33}  # ERROR_SHARING_VIOLATION, ERROR_LOCK_VIOLATION
-
-
-def is_os_metadata(name):
-    folded = name.lower()
-    return folded in preview_location.OS_METADATA or folded.startswith("._")
-
-
-def is_temp_name(name):
-    return bool(_TEMP_NAME.match(name) or MOVE_TEMP.search(name))
-
-
-def _preview_parts(name):
-    """``(base, extension)`` of a preview file name, or None."""
-    stem, extension = os.path.splitext(name)
-    suffix = thumbnail_settings.THUMB_SUFFIX
-    if not stem.endswith(suffix) or len(stem) <= len(suffix):
-        return None
-    if extension.lower() not in thumbnail_settings.THUMBNAIL_EXTENSIONS:
-        return None
-    return stem[: -len(suffix)], extension
-
-
-def _has_original(root, rel_dir, base, extension):
-    """Whether a media file in ``<root>/<rel_dir>`` owns this preview."""
-    folder = Path(root).joinpath(*rel_dir)
-    try:
-        with os.scandir(folder) as entries:
-            for entry in entries:
-                stem, source_ext = os.path.splitext(entry.name)
-                if stem != base or not source_ext:
-                    continue
-                if not thumbnail_settings.owns(extension, source_ext):
-                    continue
-                if entry.is_file(follow_symlinks=False):
-                    return True
-    except OSError:
-        return False
-    return False
-
-
-@dataclass
-class StoreScan:
-    """One old store's files, sorted into what the move does with them."""
-
-    store: Path
-    copy: list = field(default_factory=list)  # (relative parts, size, mtime_ns)
-    orphans: list = field(default_factory=list)  # relative parts
-    temps: list = field(default_factory=list)
-    left: list = field(default_factory=list)
-    links: int = 0
-    bytes: int = 0
-
-    @property
-    def removable(self):
-        return [item[0] for item in self.copy] + self.orphans + self.temps
-
-
-def scan_store(store, root, *, stop=None):
-    """Sort the files of *store* (the previews of the source *root*).
-
-    A store that does not exist, or is itself a link, scans empty (a link
-    counts once).
-    """
-    store = Path(store)
-    scan = StoreScan(store)
-    try:
-        if preview_location.is_link_like(store):
-            scan.links += 1
-            return scan
-        if not store.is_dir():
-            return scan
-    except OSError:
-        return scan
-    _walk(scan, store, (), root, stop)
-    return scan
-
-
-def _walk(scan, folder, rel_dir, root, stop):
-    try:
-        with os.scandir(folder) as iterator:
-            entries = list(iterator)
-    except OSError:
-        return
-    for entry in entries:
-        if stop is not None and stop():
-            return
-        relative = rel_dir + (entry.name,)
-        path = Path(entry.path)
-        try:
-            if preview_location.is_link_like(path):
-                scan.links += 1
-                continue
-            info = entry.stat(follow_symlinks=False)
-        except OSError:
-            continue
-        if stat_module.S_ISDIR(info.st_mode):
-            _walk(scan, path, relative, root, stop)
-            continue
-        if not stat_module.S_ISREG(info.st_mode):
-            scan.left.append(relative)
-            continue
-        if is_temp_name(entry.name):
-            scan.temps.append(relative)
-            continue
-        if is_os_metadata(entry.name):
-            continue  # removed only when it alone keeps a folder (rmdir)
-        parts = _preview_parts(entry.name)
-        if parts is None:
-            scan.left.append(relative)
-            continue
-        if in_trash_folder("/".join(relative)) or not _has_original(
-            root, rel_dir, *parts
-        ):
-            scan.orphans.append(relative)
-            continue
-        scan.copy.append((relative, info.st_size, info.st_mtime_ns))
-        scan.bytes += info.st_size
-
-
-# ── copying ──────────────────────────────────────────────────────────
-
-
-def rounded_mtime_ns(mtime_ns):
-    """*mtime_ns* rounded up to the next 2-second step (FAT/exFAT)."""
-    return -(-mtime_ns // MTIME_STEP_NS) * MTIME_STEP_NS
-
-
-def too_long(path, long_paths=None):
-    """A destination (with its temp name) over Windows' file limit."""
-    if os.name != "nt" and long_paths is not False:
-        return False
-    if long_paths is None:
-        long_paths = preview_location.long_paths_enabled()
-    if long_paths:
-        return False
-    return len(str(path)) + TEMP_EXTRA > WINDOWS_FILE_LIMIT
-
-
-class CopyFailed(Exception):
-    """One preview could not be copied (a per-file error, D10A)."""
-
-
-class FolderGone(Exception):
-    """The destination cannot take writes any more (abort the move)."""
-
-
-def _make_folders(base, relative_dir, created):
-    """Make ``base/relative_dir`` one folder at a time (*base* must exist);
-    every folder made is added to *created*."""
-    current = Path(base)
-    for part in relative_dir:
-        current = current / part
-        try:
-            os.mkdir(current)
-            created.append(str(current))
-        except FileExistsError:
-            pass  # already there: made by an earlier copy into this folder
-        except OSError as error:
-            if error.errno in (errno.ENOSPC, errno.EDQUOT, errno.EROFS):
-                raise FolderGone(str(error)) from error
-            raise CopyFailed(
-                "Its folder could not be made; made again on view"
-            ) from error
-        if preview_location.is_link_like(current):
-            raise CopyFailed("a link in the destination")
-
-
-def refuse_links(base, relative_dir):
-    """Raise CopyFailed when *base* or an existing folder on the way to
-    ``base/relative_dir`` is a link (never copy through one)."""
-    current = Path(base)
-    for part in (None, *relative_dir):
-        if part is not None:
-            current = current / part
-        if preview_location.is_link_like(current):
-            raise CopyFailed("a link in the destination")
-
-
-def copy_one(source, destination, size, mtime_ns, created, *, long_paths=None):
-    """Copy one preview; returns ``"moved"`` or ``"skipped"`` (already
-    there). Raises CopyFailed (this file) or FolderGone (the destination)."""
-    destination = Path(destination)
-    if too_long(destination, long_paths):
-        raise CopyFailed("Path too long for Windows; the original is shown")
-    wanted = rounded_mtime_ns(mtime_ns)
-    try:
-        existing = os.stat(destination, follow_symlinks=False)
-    except FileNotFoundError:
-        existing = None
-    except OSError as error:
-        raise FolderGone(str(error)) from error
-    if (
-        existing is not None
-        and stat_module.S_ISREG(existing.st_mode)
-        and existing.st_size == size
-        and existing.st_mtime_ns == wanted
-    ):
-        return "skipped"
-    temp = destination.with_name(
-        destination.name + MOVE_TEMP_SUFFIX.format(token=secrets.token_hex(4))
-    )
-    try:
-        shutil.copyfile(source, temp)
-        if os.stat(temp).st_size != size:
-            raise CopyFailed("The copy did not match; made again on view")
-        os.utime(temp, ns=(wanted, wanted))
-        os.replace(temp, destination)
-    except CopyFailed:
-        _unlink(temp)
-        raise
-    except FileNotFoundError as error:
-        _unlink(temp)
-        if not Path(source).exists():
-            raise CopyFailed("Could not be read; made again on view") from error
-        raise FolderGone(str(error)) from error
-    except OSError as error:
-        _unlink(temp)
-        if error.errno in (errno.ENOSPC, errno.EDQUOT, errno.EROFS):
-            raise FolderGone(str(error)) from error
-        raise CopyFailed("Could not be copied; made again on view") from error
-    return "moved"
-
-
-def _unlink(path):
-    """Remove a copy's temp file after a failed copy; True when it is gone.
-
-    One that cannot go (a Windows lock, permissions) is logged with its path;
-    the next start's temp sweep removes it (``.pm-move-*.tmp``)."""
-    try:
-        os.unlink(path)
-        return True
-    except FileNotFoundError:
-        return True  # never written, or already renamed into place
-    except OSError as error:
-        logger.warning(f"Could not remove the move's temp file {path}: {error}")
-        return False
-
-
-# ── removing ─────────────────────────────────────────────────────────
-
-
-def _in_use(error):
-    return getattr(error, "winerror", None) in _WINDOWS_IN_USE
-
-
-def remove_file(path, *, sleep=time.sleep):
-    """Remove one file; a file another program holds open (Windows) is
-    retried 3 times. Returns True when it is gone."""
-    for wait in (0.0,) + REMOVE_RETRIES:
-        if wait:
-            sleep(wait)
-        try:
-            os.unlink(path)
-            return True
-        except FileNotFoundError:
-            return True
-        except OSError as error:
-            if not _in_use(error):
-                return False
-    return False
-
-
-def remove_empty_folders(top, *, keep_top=False):
-    """``rmdir`` the empty folders below *top* (and *top*), bottom-up, never
-    through a link. A folder holding only OS metadata files loses them first.
-    Returns the folders that could not be removed."""
-    top = Path(top)
-    left = []
-    if not top.is_dir() or preview_location.is_link_like(top):
-        return left
-    # Top-down, pruning every link, junction or reparse point, then bottom-up:
-    # never into a folder outside *top* (Windows junctions included).
-    folders = []
-    for folder, dirs, _files in os.walk(top):
-        folder = Path(folder)
-        dirs[:] = [d for d in dirs if not preview_location.is_link_like(folder / d)]
-        folders.append(folder)
-    for folder in reversed(folders):
-        if folder == top and keep_top:
-            continue
-        try:
-            names = os.listdir(folder)
-        except OSError:
-            left.append(folder)
-            continue
-        if names and all(is_os_metadata(name) for name in names):
-            for name in names:
-                remove_file(folder / name)
-        try:
-            os.rmdir(folder)
-        except OSError:
-            left.append(folder)
-    return left

py/api/thumbnail_move_plan.py

@@ -1,492 +0,0 @@
-"""Move thumbnails, the review (#320 Part 3 phase 1): what a move would copy,
-remove and leave, checked before anything is written."""
-
-import hashlib
-import json
-import os
-import secrets
-import shutil
-import time
-import uuid
-from dataclasses import dataclass, field
-from pathlib import Path
-
-from aiohttp import web
-
-from . import preview_location, preview_store
-from . import thumbnail_move_files as files
-from .job_routes import busy_response
-from .jobs import THUMBNAILS_JOB_KIND, JobBusy
-from .thumbnail_location import default_path
-
-try:
-    from ...utils import library_location
-except ImportError:  # tests import the package top-level
-    from utils import library_location
-
-MOVE_TITLE = "Move thumbnails"
-FINISHING_TITLE = "Move thumbnails (finishing)"
-PRUNE_TITLE = "Remove thumbnails of removed sources"
-MOVE_GROUPS = ("moved", "skipped", "left", "errors")
-PRUNE_GROUPS = ("removed", "left", "errors")
-PLAN_TTL = 600.0
-JOURNAL_NAME = "thumbnail-move.json"
-SPACE_MARGIN = 64 * 2**20
-SPACE_SHARE = 0.05
-LISTED = 5
-SENTENCE = (
-    "Every thumbnail is copied and checked before Prompt Manager switches. "
-    "Scans, deletes and tagging wait until it finishes; closing this page does "
-    "not stop it."
-)
-
-
-def _number(value):
-    return f"{value:,}"
-
-
-def _plural(count, one, many=None):
-    return f"{_number(count)} {one if count == 1 else (many or one + 's')}"
-
-
-def _size(value):
-    size = float(value)
-    for unit in ("B", "KB", "MB", "GB"):
-        if size < 1024 or unit == "GB":
-            return f"{size:.1f} {unit}" if unit != "B" else f"{int(size)} B"
-        size /= 1024
-    return f"{size:.1f} GB"
-
-
-def _refusal(code, status=None, **extra):
-    known_status, text = preview_location.MESSAGES.get(code, (400, code))
-    return web.json_response(
-        {"success": False, "code": code, "error": text, **extra},
-        status=status or known_status,
-    )
-
-
-def journal_path():
-    """``<data folder>/data/thumbnail-move.json`` (only while a move copies)."""
-    return library_location.cache_dir(JOURNAL_NAME)
-
-
-def _read_json(path):
-    try:
-        with open(path, "r", encoding="utf-8") as handle:
-            data = json.load(handle)
-    except (OSError, ValueError):
-        return None
-    return data if isinstance(data, dict) else None
-
-
-def _write_json(path, data):
-    os.makedirs(os.path.dirname(path), exist_ok=True)
-    temp = f"{path}.{os.getpid()}.tmp"
-    with open(temp, "w", encoding="utf-8") as handle:
-        json.dump(data, handle, indent=2)
-        handle.flush()
-        os.fsync(handle.fileno())
-    os.replace(temp, path)
-
-
-def _remove(path):
-    try:
-        os.unlink(path)
-    except FileNotFoundError:
-        pass  # already gone: removing it is the goal
-
-
-def _is_network(path):
-    text = str(path)
-    if text.startswith(("\\\\", "//")):
-        return True
-    if os.name == "nt":
-        try:
-            import ctypes
-
-            drive = os.path.splitdrive(os.path.abspath(text))[0] + "\\"
-            return ctypes.windll.kernel32.GetDriveTypeW(drive) == 4  # DRIVE_REMOTE
-        except (AttributeError, OSError):
-            return False
-    return False
-
-
-def _volume(path):
-    current = Path(os.path.abspath(path))
-    while not current.exists() and current.parent != current:
-        current = current.parent
-    try:
-        return os.stat(current).st_dev
-    except OSError:
-        return None
-
-
-def _free(path):
-    current = Path(os.path.abspath(path))
-    while not current.exists() and current.parent != current:
-        current = current.parent
-    try:
-        return shutil.disk_usage(current).free
-    except OSError:
-        return None
-
-
-# ── the plan ─────────────────────────────────────────────────────────
-
-
-@dataclass
-class SourcePlan:
-    """One listed source: its old store, its new store and what moves."""
-
-    root: str
-    label: str
-    key: str | None
-    old_store: str | None
-    new_store: str
-    scan: files.StoreScan | None
-    available: bool = True
-    too_long: list = field(default_factory=list)
-
-
-@dataclass
-class MovePlan:
-    """A reviewed move: from, to, the sources and the removals."""
-
-    token: str
-    created: float
-    revision: str
-    old: preview_location.ParsedLocation
-    target: dict  # {"mode", "path"}
-    target_id: str | None
-    target_exists: bool
-    target_default: bool
-    install: str
-    sources: list
-    unlisted: list  # (key, store path, scan)
-    needs_bytes: int
-    confirm_required: bool
-
-    @property
-    def to_folder(self):
-        return self.target["mode"] == preview_store.FOLDER_MODE
-
-    @property
-    def from_folder(self):
-        return self.old.mode == preview_store.FOLDER_MODE
-
-
-def _roots_revision(roots):
-    text = json.dumps(sorted(str(root) for root in roots))
-    return hashlib.sha256(text.encode("utf-8")).hexdigest()[:16]
-
-
-class ThumbnailMovePlanMixin:
-    """The move's review and its routes."""
-
-    _move_plans = None
-
-    # ── routes ────────────────────────────────────────────────────────
-
-    def _register_thumbnail_move_routes(self, routes):
-        @routes.post("/prompt_manager/images/thumbnails/plan")
-        async def thumbnail_move_plan_route(request):
-            return await self.plan_thumbnail_move(request)
-
-        @routes.post("/prompt_manager/images/thumbnails/location/recreate")
-        async def thumbnail_location_recreate_route(request):
-            return await self.recreate_thumbnail_folder(request)
-
-        @routes.post("/prompt_manager/images/thumbnails/location/adopt")
-        async def thumbnail_location_adopt_route(request):
-            return await self.adopt_thumbnail_folder(request)
-
-    # ── review ────────────────────────────────────────────────────────
-
-    async def plan_thumbnail_move(self, request):
-        try:
-            body = await request.json()
-        except (ValueError, UnicodeDecodeError):
-            body = None
-        if not isinstance(body, dict) or body.get("mode") != "move":
-            return web.json_response(
-                {
-                    "success": False,
-                    "code": "invalid-request",
-                    "error": "mode must be move",
-                },
-                status=400,
-            )
-        target = body.get("location")
-        if not isinstance(target, dict) or target.get("mode") not in (
-            preview_store.SOURCE_MODE,
-            preview_store.FOLDER_MODE,
-        ):
-            return web.json_response(
-                {
-                    "success": False,
-                    "code": "invalid-request",
-                    "error": "location must name a mode",
-                },
-                status=400,
-            )
-        blocker = self._jobs.blocker(THUMBNAILS_JOB_KIND, admission="guarded")
-        if blocker is not None:
-            return busy_response(JobBusy(blocker))
-        try:
-            outcome = await self._run_in_executor(self._build_move_plan, target)
-        except Exception:
-            self.logger.exception("The thumbnail move could not be planned")
-            return web.json_response(
-                {
-                    "success": False,
-                    "code": None,
-                    "error": "The move could not be planned",
-                },
-                status=500,
-            )
-        if isinstance(outcome, str):
-            return _refusal(outcome)
-        plan, payload = outcome
-        if payload.get("insufficient"):
-            return _refusal(
-                "insufficient-space",
-                status=507,
-                error_detail=payload["insufficient"],
-                plan=payload,
-            )
-        self._store_move_plan(plan)
-        return web.json_response({"success": True, **payload})
-
-    def _store_move_plan(self, plan):
-        if self._move_plans is None:
-            self._move_plans = {}
-        now = time.monotonic()
-        self._move_plans = {
-            token: kept
-            for token, kept in self._move_plans.items()
-            if now - kept.created < PLAN_TTL
-        }
-        self._move_plans[plan.token] = plan
-
-    def _build_move_plan(self, target):
-        """``(plan, payload)`` or a refusal code (blocking)."""
-        old = preview_store.setting()
-        location = preview_store.current()
-        install = old.install or str(uuid.uuid4())
-        target_path = None
-        default = default_path()
-        if target["mode"] == preview_store.FOLDER_MODE:
-            raw = target.get("path")
-            if not isinstance(raw, str):
-                return "location-not-absolute"
-            context = self._thumbnail_location_context()
-            code = preview_location.location_problem(
-                raw, purpose="move", context=context
-            )
-            if code is not None:
-                return code
-            target_path = os.path.abspath(raw)
-        elif old.mode == preview_store.SOURCE_MODE and not old.problem:
-            return "location-same"
-        target_default = bool(default) and os.path.normcase(
-            target_path or ""
-        ) == os.path.normcase(os.path.abspath(default))
-        target_exists = bool(target_path) and os.path.isdir(target_path)
-        target_marker = (
-            preview_location.read_marker(target_path) if target_exists else None
-        )
-        roots = [str(root) for root in self._get_all_output_dirs()]
-        labels = self._source_labels(roots)
-        old_keys = {}
-        if old.mode == preview_store.FOLDER_MODE and location.available:
-            marker = preview_location.read_marker(old.path) or {}
-            old_keys = marker.get("keys") or {}
-        new_keys = dict((target_marker or {}).get("keys") or {})
-        taken = {key: entry.get("identity") for key, entry in new_keys.items()}
-        sources = []
-        for root in roots:
-            identity = os.path.normcase(os.path.realpath(root))
-            dev_ino = preview_location.file_identity(root)
-            old_key = None
-            old_store = None
-            available = True
-            if old.mode == preview_store.SOURCE_MODE:
-                old_store = str(preview_store.source_folder(root))
-            elif location.available:
-                old_key = preview_location.find_key(old_keys, root, identity, dev_ino)
-                if old_key:
-                    old_store = os.path.join(old.path, old_key)
-            else:
-                available = False
-            key = None
-            if target_path:
-                key = old_key or preview_location.find_key(
-                    new_keys, root, identity, dev_ino
-                )
-                if key is None or taken.get(key, identity) != identity:
-                    key = preview_location.source_key(root, identity, taken)
-                taken[key] = identity
-                new_store = os.path.join(target_path, key)
-            else:
-                new_store = str(preview_store.source_folder(root))
-            scan = None
-            if old_store:
-                scan = files.scan_store(old_store, root)
-            plan = SourcePlan(
-                root, labels.get(root, root), key, old_store, new_store, scan, available
-            )
-            if scan is not None and target_path:
-                plan.too_long = [
-                    item[0]
-                    for item in scan.copy
-                    if files.too_long(Path(new_store).joinpath(*item[0]))
-                ]
-            sources.append(plan)
-        unlisted = self._unlisted_keys(old, location, old_keys, install)
-        needs = sum(source.scan.bytes for source in sources if source.scan is not None)
-        plan = MovePlan(
-            token=secrets.token_urlsafe(16),
-            created=time.monotonic(),
-            revision=_roots_revision(roots),
-            old=old,
-            target={"mode": target["mode"], "path": target_path},
-            target_id=(target_marker or {}).get("id"),
-            target_exists=target_exists,
-            target_default=target_default,
-            install=install,
-            sources=sources,
-            unlisted=unlisted,
-            needs_bytes=needs,
-            confirm_required=bool(target_path) and not target_default,
-        )
-        return plan, self._plan_payload(plan, location)
-
-    def _unlisted_keys(self, old, location, keys, install):
-        """This install's keys whose source no longer is in any root list
-        (``(key, store, scan)``), in the folder in use."""
-        if old.mode != preview_store.FOLDER_MODE or not location.available:
-            return []
-        listed = {
-            os.path.normcase(os.path.realpath(root))
-            for root in self._all_source_roots()
-        }
-        found = []
-        for key, entry in sorted(keys.items()):
-            if not preview_location.valid_key(key) or not isinstance(entry, dict):
-                continue  # a marker is data: never a path out of the folder
-            if entry.get("install") not in (install, None):
-                continue
-            if entry.get("identity") in listed:
-                continue
-            store = os.path.join(old.path, key)
-            found.append(
-                (key, store, files.scan_store(store, entry.get("path") or store))
-            )
-        return found
-
-    def _source_labels(self, roots):
-        from . import sources
-
-        labels = sources._comfyui_labels()
-        return {root: sources.source_label(root, labels) for root in roots}
-
-    def _plan_payload(self, plan, location):
-        sources = plan.sources
-        copies = sum(len(s.scan.copy) for s in sources if s.scan)
-        orphans = sum(len(s.scan.orphans) for s in sources if s.scan)
-        temps = sum(len(s.scan.temps) for s in sources if s.scan)
-        links = sum(s.scan.links for s in sources if s.scan)
-        left = [
-            f"{s.label} · {'/'.join(item)}"
-            for s in sources
-            if s.scan
-            for item in s.scan.left
-        ]
-        too_long = [
-            f"{s.label} · {'/'.join(item)}" for s in sources for item in s.too_long
-        ]
-        unlisted_count = sum(
-            len(scan.copy) + len(scan.orphans) for _k, _s, scan in plan.unlisted
-        )
-        free = None
-        insufficient = None
-        if plan.needs_bytes:
-            volumes = {}
-            for source in sources:
-                if source.scan is None or not source.scan.bytes:
-                    continue
-                volume = _volume(source.new_store)
-                entry = volumes.setdefault(volume, [source.new_store, 0])
-                entry[1] += source.scan.bytes
-            for where, needed in volumes.values():
-                available = _free(where)
-                if available is None:
-                    continue
-                free = available if free is None else min(free, available)
-                margin = max(SPACE_MARGIN, int(needed * SPACE_SHARE))
-                if needed + margin > available:
-                    insufficient = {
-                        "needed": needed + margin,
-                        "free": available,
-                        "text": (
-                            f"There is not enough space for the thumbnails: "
-                            f"{_size(available)} free, {_size(needed + margin)} "
-                            "needed. Free some space or choose another folder."
-                        ),
-                    }
-        payload = {
-            "mode": "move",
-            "from": {
-                "mode": plan.old.mode,
-                "path": plan.old.path,
-                "available": location.available,
-            },
-            "to": {
-                "mode": plan.target["mode"],
-                "path": plan.target["path"],
-                "exists": plan.target_exists,
-                "will_create": bool(plan.target["path"]) and not plan.target_exists,
-                "default": plan.target_default,
-            },
-            "sources": [
-                {
-                    "label": s.label,
-                    "key": s.key,
-                    "files": len(s.scan.copy) if s.scan else 0,
-                    "bytes": s.scan.bytes if s.scan else 0,
-                    "too_long": len(s.too_long),
-                    "links": s.scan.links if s.scan else 0,
-                    "orphans": len(s.scan.orphans) if s.scan else 0,
-                    "left_in_place": len(s.scan.left) if s.scan else 0,
-                    "available": s.available,
-                }
-                for s in sources
-            ],
-            "totals": {
-                "sources": len(sources),
-                "files": copies,
-                "bytes": plan.needs_bytes,
-                "orphans": orphans,
-                "temps": temps,
-                "links": links,
-                "left_in_place": len(left),
-                "too_long": len(too_long),
-                "unlisted_sources": len(plan.unlisted),
-                "unlisted_files": unlisted_count,
-            },
-            "too_long_listed": too_long[:LISTED],
-            "left_listed": left[:LISTED],
-            "unlisted": [
-                {"key": key, "files": len(scan.copy) + len(scan.orphans)}
-                for key, _store, scan in plan.unlisted
-            ],
-            "needs_bytes": plan.needs_bytes,
-            "free_bytes": free,
-            "confirm_required": plan.confirm_required,
-            "token": plan.token,
-            "sentence": SENTENCE,
-        }
-        if insufficient:
-            payload["insufficient"] = insufficient
-        return payload

py/api/thumbnail_move_recovery.py

@@ -1,246 +0,0 @@
-"""Move thumbnails after a restart and the unavailable folder's actions
-(#320 Parts 3 and 4): undo an interrupted copy, finish a removal that
-waited, Recreate folder and Use this folder."""
-
-import os
-import threading
-from pathlib import Path
-
-from aiohttp import web
-
-from . import preview_location, preview_store
-from . import thumbnail_move_files as files
-from .job_routes import busy_response
-from .jobs import THUMBNAILS_JOB_KIND, JobBusy
-from .thumbnail_move_plan import (
-    FINISHING_TITLE,
-    MOVE_GROUPS,
-    _read_json,
-    _refusal,
-    _remove,
-)
-from . import thumbnail_move_plan as move_plan
-
-
-class ThumbnailMoveRecoveryMixin:
-    """Startup recovery, the finishing job, Recreate and Use this folder."""
-
-    _move_recover_lock = threading.Lock()
-    # Per API: set once recover_thumbnail_move has run (a move waits for it).
-    _move_recovered = False
-
-    # ── startup ───────────────────────────────────────────────────────
-
-    def recover_thumbnail_move(self):
-        """Startup (B4): undo an interrupted copy, or forget a journal the
-        switch already made true. Idempotent; the move start waits for it."""
-        with self._move_recover_lock:
-            if self._move_recovered:
-                return
-            try:
-                self._recover_journal()
-            except Exception:
-                self.logger.warning(
-                    "The interrupted thumbnail move check failed", exc_info=True
-                )
-            self._move_recovered = True
-
-    def _recover_journal(self):
-        path = move_plan.journal_path()
-        journal = _read_json(path)
-        if journal is None:
-            return
-        setting = preview_store.setting()
-        target = journal.get("to") or {}
-        now = setting.path if setting.mode == preview_store.FOLDER_MODE else None
-        if setting.mode == target.get("mode") and (
-            now is None
-            or os.path.normcase(now) == os.path.normcase(target.get("path") or "")
-        ):
-            _remove(path)  # the switch happened; only the journal was left
-            return
-        for store in journal.get("stores") or []:
-            if not isinstance(store, str) or not os.path.isdir(store):
-                continue
-            for current, dirs, names in os.walk(store):
-                dirs[:] = [
-                    d
-                    for d in dirs
-                    if not preview_location.is_link_like(Path(current) / d)
-                ]
-                for name in names:
-                    if files.MOVE_TEMP.search(name):
-                        files.remove_file(Path(current) / name)
-        for folder in reversed(journal.get("created_dirs") or []):
-            if not isinstance(folder, str) or not os.path.isdir(folder):
-                continue
-            for current, dirs, names in os.walk(folder):
-                dirs[:] = [
-                    d
-                    for d in dirs
-                    if not preview_location.is_link_like(Path(current) / d)
-                ]
-                for name in names:
-                    if files._preview_parts(name) or files.is_temp_name(name):
-                        files.remove_file(Path(current) / name)
-            files.remove_empty_folders(folder)
-        folder = target.get("path")
-        if journal.get("created_folder") and folder and os.path.isdir(folder):
-            names = set(os.listdir(folder))
-            if names <= {preview_location.MARKER_NAME}:
-                _remove(preview_location.marker_path(folder))
-                files.remove_empty_folders(folder)
-        _remove(path)
-        self.logger.info("An interrupted thumbnail move was undone; nothing changed")
-
-    def _cleanup_reachable(self, entry):
-        folder = entry.get("folder")
-        if folder:
-            return os.path.isdir(folder)
-        return True
-
-    async def finish_thumbnail_move(self, _app=None):
-        """Startup: recover, then start "Move thumbnails (finishing)" when old
-        copies wait and every one is reachable (on the server's loop)."""
-        await self._run_in_executor(self.recover_thumbnail_move)
-        cleanup = list(preview_store.setting().cleanup)
-        if not cleanup:
-            return None
-        reachable = await self._run_in_executor(
-            lambda: all(self._cleanup_reachable(entry) for entry in cleanup)
-        )
-        if not reachable:
-            return None
-        try:
-            return self._jobs.start(
-                THUMBNAILS_JOB_KIND,
-                FINISHING_TITLE,
-                admission="guarded",
-                cancellable=False,
-                scope={"mode": "move", "phase": "remove"},
-                groups=MOVE_GROUPS,
-                runner=self._run_finishing,
-            )
-        except JobBusy:
-            return None
-
-    async def _run_finishing(self, job):
-        await self._remove_old_copies(job, None)
-        left = len(preview_store.setting().cleanup)
-        self._end_move(
-            job,
-            "finished",
-            (
-                "Old thumbnails removed."
-                if not left
-                else (
-                    "Some old thumbnails are still in use; they are removed at "
-                    "the next start."
-                )
-            ),
-        )
-
-    # ── Recreate and Use this folder (Part 4) ─────────────────────────
-
-    async def recreate_thumbnail_folder(self, _request):
-        blocker = self._jobs.blocker(THUMBNAILS_JOB_KIND, admission="guarded")
-        if blocker is not None:
-            return busy_response(JobBusy(blocker))
-        code = await self._run_in_executor(self._recreate_folder)
-        if code is not None:
-            status = (
-                409 if code in ("location-has-marker", "location-not-empty") else 400
-            )
-            if code == "location-has-marker":
-                return web.json_response(
-                    {
-                        "success": False,
-                        "code": code,
-                        "error": "The folder is back with its thumbnails. Nothing "
-                        "was recreated.",
-                    },
-                    status=status,
-                )
-            return _refusal(code, status=status)
-        return web.json_response(
-            {
-                "success": True,
-                "location": self._thumbnail_location_payload(with_path=True),
-            }
-        )
-
-    def _recreate_folder(self):
-        setting = preview_store.setting()
-        if setting.mode != preview_store.FOLDER_MODE or not setting.path:
-            return "location-same"
-        folder = setting.path
-        if os.path.isdir(folder):
-            if preview_location.read_marker(folder) is not None:
-                return "location-has-marker"
-            if not preview_location.holds_only_metadata(folder):
-                return "location-not-empty"
-        elif not os.path.isdir(os.path.dirname(folder)):
-            return "location-parent-missing"
-        else:
-            try:
-                os.mkdir(folder)
-            except OSError:
-                return "location-not-writable"
-        try:
-            marker_id = preview_location.init_folder(folder, created_by_pm=True)
-        except OSError:
-            return "location-not-writable"
-        return self._commit_location_id(marker_id)
-
-    async def adopt_thumbnail_folder(self, _request):
-        blocker = self._jobs.blocker(THUMBNAILS_JOB_KIND, admission="guarded")
-        if blocker is not None:
-            return busy_response(JobBusy(blocker))
-        code = await self._run_in_executor(self._adopt_folder)
-        if code is not None:
-            return _refusal(code)
-        return web.json_response(
-            {
-                "success": True,
-                "location": self._thumbnail_location_payload(with_path=True),
-            }
-        )
-
-    def _adopt_folder(self):
-        setting = preview_store.setting()
-        if setting.mode != preview_store.FOLDER_MODE or not setting.path:
-            return "location-same"
-        try:
-            marker = preview_location.read_marker(setting.path)
-        except OSError:
-            return "location-unavailable"
-        if marker is None:
-            return "location-unavailable"
-        return self._commit_location_id(marker["id"])
-
-    def _commit_location_id(self, marker_id):
-        from ..config import PromptManagerConfig
-        from ..config_store import get_config_store
-
-        value = dict(preview_store.setting().to_config())
-        value["id"] = marker_id
-
-        def mutate(config):
-            section = config.get("thumbnails")
-            if not isinstance(section, dict):
-                section = {}
-            section["location"] = value
-            config["thumbnails"] = section
-            return config
-
-        def publish(_config):
-            PromptManagerConfig.THUMBNAIL_LOCATION = value
-            preview_store.configure(value, check=False)
-
-        try:
-            get_config_store().commit(mutate, expected_revision=None, publish=publish)
-        except Exception:
-            self.logger.exception("The thumbnail folder could not be saved")
-            return "location-not-writable"
-        preview_store.refresh()
-        return None

py/api/thumbnail_prune.py

@@ -1,175 +0,0 @@
-"""Remove thumbnails of removed sources (#320 Part 5, D200): a Thumbnail
-maintenance scope, offered only in folder mode (31A).
-
-*Removed* means a key of this install in the thumbnail folder's marker whose
-identity matches no root in any root list. The job removes the
-preview-grammar files and temps of those key folders, ``rmdir``s the empty
-folders, drops the keys from the marker and lists anything else as "Left in
-place". Kind ``thumbnails``, ``mode: "prune"``.
-"""
-
-import functools
-import os
-from pathlib import Path
-
-from aiohttp import web
-
-from . import preview_location, preview_store
-from . import thumbnail_move_files as files
-from .jobs import THUMBNAILS_JOB_KIND
-from .thumbnail_location import location_refusal
-from .thumbnail_move_plan import _number, _plural, _size
-
-PRUNE_TITLE = "Remove thumbnails of removed sources"
-PRUNE_GROUPS = ("removed", "left", "errors")
-
-
-def _prune_line(count, files_count, size):
-    if not count:
-        return "No sources were removed: nothing to remove."
-    return (
-        f"{_plural(count, 'source')} no longer listed: "
-        f"{_plural(files_count, 'thumbnail')} ({_size(size)}) are removed."
-    )
-
-
-class ThumbnailPruneMixin:
-    """The prune plan and job."""
-
-    def _prune_targets(self):
-        """``[(key, store, scan)]`` of this install's unlisted keys (blocking)."""
-        setting = preview_store.setting()
-        location = preview_store.current()
-        if setting.mode != preview_store.FOLDER_MODE or not location.available:
-            return []
-        marker = preview_location.read_marker(setting.path) or {}
-        install = setting.install
-        return self._unlisted_keys(setting, location, marker.get("keys") or {}, install)
-
-    def _prune_payload(self, targets):
-        files_count = sum(
-            len(scan.copy) + len(scan.orphans) for _k, _s, scan in targets
-        )
-        size = sum(scan.bytes for _k, _s, scan in targets)
-        return {
-            "success": True,
-            "mode": "prune",
-            "sources": [
-                {
-                    "key": key,
-                    "files": len(scan.copy) + len(scan.orphans),
-                    "bytes": scan.bytes,
-                    "left_in_place": len(scan.left),
-                }
-                for key, _store, scan in targets
-            ],
-            "targets": files_count,
-            "bytes": size,
-            "line": _prune_line(len(targets), files_count, size),
-            "folder": preview_store.setting().path,
-        }
-
-    async def get_prune_plan(self):
-        refused = location_refusal()
-        if refused is not None:
-            return refused
-        if preview_store.current().mode != preview_store.FOLDER_MODE:
-            return web.json_response(
-                {
-                    "success": False,
-                    "code": "invalid-request",
-                    "error": "Thumbnails are kept inside each source: no removed "
-                    "source has thumbnails here.",
-                },
-                status=400,
-            )
-        targets = await self._run_in_executor(self._prune_targets)
-        return web.json_response(
-            self._prune_payload(targets), headers={"Cache-Control": "no-store"}
-        )
-
-    def start_thumbnail_prune(self):
-        """Start the prune job (sync, on the loop); raises JobBusy."""
-        return self._jobs.start(
-            THUMBNAILS_JOB_KIND,
-            PRUNE_TITLE,
-            admission="guarded",
-            cancellable=True,
-            scope={"mode": "prune"},
-            groups=PRUNE_GROUPS,
-            runner=self._run_thumbnail_prune,
-        )
-
-    async def _run_thumbnail_prune(self, job):
-        targets = await self._run_in_executor(self._prune_targets)
-        job.update(total=len(targets), processed=0)
-        setting = preview_store.setting()
-        for done, (key, store, scan) in enumerate(targets, 1):
-            if job.cancelled:
-                break
-            removed, failed = await self._run_in_executor(
-                functools.partial(self._prune_store, store)
-            )
-            job.record_counted(
-                "removed", removed, [{"path": key, "detail": "Thumbnails removed"}]
-            )
-            if failed:
-                job.record_counted("errors", failed)
-            if scan.left:
-                job.record_counted(
-                    "left",
-                    len(scan.left),
-                    [{"path": f"{key}/{'/'.join(item)}"} for item in scan.left],
-                )
-            await self._run_in_executor(
-                functools.partial(self._forget_key, setting.path, key, store)
-            )
-            job.update(
-                processed=done,
-                progress=int(done * 100 / len(targets)),
-                status_line=f"Removing thumbnails of {_number(done)} of "
-                f"{_number(len(targets))} removed sources",
-            )
-            job.publish({"type": "progress", "summary": job.summary()})
-        line = f"{_number(job.counters.get('removed', 0))} thumbnails removed"
-        if job.counters.get("errors"):
-            line += f" · {_plural(job.counters['errors'], 'error')}"
-        job.update(status_line=line, progress=100)
-        job.log_line(line)
-        job.finish("cancelled" if job.cancelled else "finished")
-
-    @staticmethod
-    def _prune_store(store):
-        """Remove the previews and temps of one key folder; ``(removed, failed)``."""
-        removed = failed = 0
-        store = Path(store)
-        if not store.is_dir() or preview_location.is_link_like(store):
-            return 0, 0
-        for current, dirs, names in os.walk(store):
-            dirs[:] = [
-                d for d in dirs if not preview_location.is_link_like(Path(current) / d)
-            ]
-            for name in names:
-                path = Path(current) / name
-                if not (files.is_temp_name(name) or files._preview_parts(name)):
-                    continue
-                if preview_location.is_link_like(path):
-                    continue
-                if files.remove_file(path):
-                    removed += 1
-                else:
-                    failed += 1
-        files.remove_empty_folders(store)
-        return removed, failed
-
-    @staticmethod
-    def _forget_key(folder, key, store):
-        """Drop *key* from the marker once its folder is gone."""
-        if os.path.exists(store):
-            return
-
-        def forget(marker):
-            marker["keys"].pop(key, None)
-
-        with preview_store.write_lock:
-            preview_location.write_marker(folder, forget)

py/api/thumbnail_settings.py

@@ -114,16 +114,9 @@ def validate_edge(value):
 # ── names ────────────────────────────────────────────────────────────
 
 
-def preview_stem(rel_path):
-    """``<rel without extension>_thumb`` (POSIX): a preview's name inside the
-    store of its source (``preview_store``)."""
-    return f"{Path(rel_path).with_suffix('').as_posix()}{THUMB_SUFFIX}"
-
-
 def thumbnail_stem_rel(rel_path):
-    """``thumbnails/<rel without extension>_thumb`` (POSIX): URL text only.
-    Where the preview is on disk is ``preview_store``'s answer."""
-    return f"thumbnails/{preview_stem(rel_path)}"
+    """``thumbnails/<rel without extension>_thumb`` (POSIX)."""
+    return f"thumbnails/{Path(rel_path).with_suffix('').as_posix()}{THUMB_SUFFIX}"
 
 
 def thumbnail_rel(rel_path, extension=None):
@@ -214,20 +207,9 @@ def owned_in_folder(folder, stem, source_extension, preferred=None):
 
 
 def _owned(root, rel_path, preferred):
-    from . import preview_store
-
     rel_path = Path(rel_path)
-    store = preview_store.store_dir(root)
-    if store is None:
-        return iter(())
-    stem = store / preview_stem(rel_path)
-    found = owned_in_folder(stem.parent, stem.name, rel_path.suffix, preferred)
-    if preview_store.current().mode == preview_store.SOURCE_MODE:
-        return found
-    # Folder mode: timed, so a stalled share marks the folder unreachable,
-    # and only previews no link takes out of the key folder (deletes use it).
-    with preview_store.store_io():
-        return iter([path for path in found if preview_store.may_write(path)])
+    stem = Path(root) / thumbnail_stem_rel(rel_path)
+    return owned_in_folder(stem.parent, stem.name, rel_path.suffix, preferred)
 
 
 def owned_thumbnails(root, rel_path, preferred=None):

py/config.py

@@ -940,8 +940,6 @@ class PromptManagerConfig:
     THUMBNAIL_QUALITY = 80
     THUMBNAIL_EDGE = 512
     THUMBNAIL_EDGE_RANGE = (128, 2048)
-    # #320 thumbnail location (config.json ``thumbnails.location``), as read.
-    THUMBNAIL_LOCATION = None
 
     @classmethod
     def max_worker_threads(cls) -> int:
@@ -1003,12 +1001,6 @@ class PromptManagerConfig:
                 "format": cls.THUMBNAIL_FORMAT,
                 "quality": cls.THUMBNAIL_QUALITY,
                 "edge": cls.THUMBNAIL_EDGE,
-                # #320: as read; only the Move thumbnails job writes it.
-                **(
-                    {"location": cls.THUMBNAIL_LOCATION}
-                    if cls.THUMBNAIL_LOCATION is not None
-                    else {}
-                ),
             },
             "gallery": GalleryConfig.get_config(),
             "integrations": IntegrationConfig.get_config(),
@@ -1183,11 +1175,6 @@ class PromptManagerConfig:
         low, high = cls.THUMBNAIL_EDGE_RANGE
         if type(edge) is int and low <= edge <= high:
             cls.THUMBNAIL_EDGE = edge
-        # #320: kept as read (``preview_location.parse_location`` checks it;
-        # a bad value becomes an unavailable ``invalid`` location, never a
-        # silent fall-back to the sources).
-        if "location" in section:
-            cls.THUMBNAIL_LOCATION = section["location"]
 
 
 # Load configuration on import

pyproject.toml

@@ -1,10 +1,10 @@
 [project]
 name = "promptmanager"
 description = "A powerful ComfyUI custom node that extends the standard text encoder with persistent prompt storage, advanced search capabilities, and an automatic image gallery system using SQLite."
-version = "3.5.0"
+version = "3.4.1"
 license = {file = "LICENSE"}
 requires-python = ">=3.12"
-dependencies = ["watchdog>=2.1.0", "Pillow>=10.1.0"]
+dependencies = ["watchdog>=2.1.0", "Pillow>=8.0.0"]
 
 [build-system]
 requires = ["setuptools>=84.2.1"]

requirements-dev.txt

@@ -1,11 +1,11 @@
-# Runtime dependencies (Pillow, aiohttp and numpy floors match ComfyUI requirements.txt)
+# Runtime dependencies
 watchdog>=6.0.0
-Pillow>=10.1.0
-aiohttp>=3.11.8
+Pillow>=12.3.0
+aiohttp>=3.14.5
 
 # Tests and coverage
 coverage>=7.16.2
-numpy>=1.25.0  # WD14 engine tests
+numpy>=2.2.6  # WD14 engine tests
 
 # Code quality
 black==26.10.1

requirements.txt

@@ -1,4 +1,4 @@
 # Runtime dependencies for PromptManager.
 # aiohttp, numpy and torch come from ComfyUI itself and are not listed here.
 watchdog>=2.1.0               # Output directory monitoring
-Pillow>=10.1.0               # Image metadata extraction and thumbnails
+Pillow>=8.0.0                # Image metadata extraction and thumbnails

tests/browser/server.py

@@ -22,9 +22,6 @@ from PIL.PngImagePlugin import PngInfo
 from tests.browser.folder_trash import close_trash, replace_folder
 from tests.browser.malloc_tuning import pin_mmap_threshold
 from tests.browser.request_hold import register_request_holds
-from tests.browser.thumbnail_location_fixture import (
-    register_thumbnail_location_commands,
-)
 from tests.browser import slow_reset_watch
 from tests.browser.fast_reset import SEED_ON_LIVE_ENV, ScratchSeeder
 from tests.browser.workspace_activity_fixture import register_activity_commands
@@ -252,7 +249,6 @@ def create_app(root: Path) -> web.Application:
     library_editor_commands = register_library_editor_commands(routes, api, root)
     register_vocabulary_commands(routes, api, root)
     restore_sources = register_source_change_commands(routes, api)
-    reset_thumbnail_location = register_thumbnail_location_commands(routes, api, root)
     register_tagging_commands(routes, api, root, model, on_reset=restore_sources)
     register_review_commands(routes, api, root)
     register_collections_commands(routes, api, root)
@@ -464,8 +460,6 @@ def create_app(root: Path) -> web.Application:
         restore_sources()
         # No preview queued by the last test may land in the new fixture.
         await api._run_in_executor(api.close_auto_thumbnails)
-        # Previews inside each source again (#320).
-        await api._run_in_executor(reset_thumbnail_location)
         library_editor_commands.reset()
         await api._run_in_executor(reset_logs)
         data = await request.json() if request.can_read_body else {}
@@ -610,7 +604,6 @@ def create_app(root: Path) -> web.Application:
         history_commands.reset()
         library_editor_commands.reset()
         reveal_stub.reset()
-        await api._run_in_executor(reset_thumbnail_location)
         history_fixture = None
         manifest = await api._run_in_executor(
             seeder.run,

tests/browser/system-concept.spec.mjs

@@ -656,10 +656,9 @@ function mapSourcesConcept(reference, { settings, sources }) {
             // D113: the range ends at the server's core count (the concept's fixed 16) and shows the real worker count.
             return [{ ...row, control: { ...row.control, max: String(settings.cpu_count), value: String(settings.worker_threads) } }];
         }),
-        // D158: the inserted row after the first setting row; D196 (#320): the Thumbnail location block after
-        // "Thumbnail generation"; D98: "Refresh files" closes the surface.
+        // D158: the inserted row after the first setting row; D98: "Refresh files" closes the surface.
         surface: { ...reference.surface, tree: [...reference.surface.tree.slice(0, rowAt + 1), 'div.setting-row',
-            ...reference.surface.tree.slice(rowAt + 1), 'div.setting-block', 'div.operation'] },
+            ...reference.surface.tree.slice(rowAt + 1), 'div.operation'] },
         operations: [...reference.operations, { ...reference.operations[0], title: REFRESH_FILES.title,
             description: REFRESH_FILES.description, actions: [{ ...reference.operations[0].actions[0], text: REFRESH_FILES.label }] }],
     };

tests/browser/thumbnail_location_fixture.py

@@ -1,170 +0,0 @@
-"""The thumbnail location on the test server (#320), undone by every reset.
-
-Folder mode is reachable from config.json and tests only until the Move
-thumbnails job lands, so page tests set it here, inside the server's root:
-
-- ``POST /__test__/thumbnail-location`` ``{"mode": "folder"}`` (or
-  ``"source"``): previews live in ``<root>/thumbs/<key>`` from now on (a new
-  folder with Prompt Manager's marker).
-- ``GET /__test__/thumbnail-files``: the preview files in the thumbnail
-  folder and whether any source grew a ``thumbnails/`` folder.
-- ``POST /__test__/thumbnail-folder/remove``: the thumbnail folder goes, as
-  when its drive is unplugged; the server notices it on its next check.
-"""
-
-from __future__ import annotations
-
-import shutil
-from pathlib import Path
-from typing import TYPE_CHECKING, Callable
-
-from aiohttp import web
-
-if TYPE_CHECKING:
-    from py.api import PromptManagerAPI
-
-FOLDER_NAME = "thumbs"
-
-
-def register_thumbnail_location_commands(
-    routes: web.RouteTableDef, api: PromptManagerAPI, root: Path
-) -> Callable[[], None]:
-    """Register the commands; returns the reset every reset runs."""
-    from py.api import preview_location, preview_store
-    from py.api import thumbnail_location, thumbnail_move_plan
-    from py.config import PromptManagerConfig
-    from py.config_store import get_config_store
-
-    folder = root / FOLDER_NAME
-    default = root / "default-thumbs"
-    custom = root / "custom-thumbs"  # a folder a page types in
-    journal = root / "data" / "thumbnail-move.json"
-    # The move's journal and default folder live in this server's root, never
-    # in the checkout's data folder.
-    thumbnail_move_plan.journal_path = lambda: str(journal)
-    thumbnail_move_plan.default_path = lambda: str(default)
-    thumbnail_location.default_path = lambda: str(default)
-    api.recover_thumbnail_move()
-
-    def forget_config(config: dict) -> dict:
-        section = config.get("thumbnails")
-        if isinstance(section, dict):
-            section.pop("location", None)
-        return config
-
-    real_free = thumbnail_move_plan._free
-
-    def reset() -> None:
-        thumbnail_move_plan._free = real_free
-        preview_store.configure(None)
-        PromptManagerConfig.THUMBNAIL_LOCATION = None
-        store = get_config_store()
-        config, _revision = store.read()
-        if (
-            isinstance(config.get("thumbnails"), dict)
-            and "location" in config["thumbnails"]
-        ):
-            store.commit(forget_config, expected_revision=None)
-        for path in (folder, default, custom):
-            shutil.rmtree(path, ignore_errors=True)
-        journal.unlink(missing_ok=True)
-
-    def use(mode: str) -> dict:
-        reset()
-        if mode == "source":
-            return {"mode": "source"}
-        folder.mkdir()
-        marker_id = preview_location.init_folder(str(folder), created_by_pm=True)
-        location = preview_store.configure(
-            {
-                "mode": "folder",
-                "path": str(folder),
-                "id": marker_id,
-                "install": "browser-tests",
-            }
-        )
-        return {"mode": location.mode, "available": location.available}
-
-    @routes.post("/__test__/thumbnail-location")
-    async def set_location(request: web.Request) -> web.Response:
-        data = await request.json()
-        mode = data.get("mode") if isinstance(data, dict) else None
-        if mode not in ("source", "folder"):
-            raise web.HTTPBadRequest()
-        return web.json_response(await api._run_in_executor(use, mode))
-
-    def files() -> dict:
-        setting = preview_store.setting()
-        where = Path(setting.path) if setting.path else folder
-        previews = sorted(
-            path.relative_to(where).as_posix()
-            for path in where.rglob("*_thumb.*")
-            if path.is_file()
-        )
-        sources = [str(path) for path in api._get_all_output_dirs()]
-        return {
-            "folder": previews,
-            "folder_exists": folder.exists() or default.exists() or custom.exists(),
-            "custom_path": str(custom),
-            "source_thumbnails": any(
-                (Path(source) / "thumbnails").exists() for source in sources
-            ),
-        }
-
-    @routes.get("/__test__/thumbnail-files")
-    async def thumbnail_files(_request: web.Request) -> web.Response:
-        return web.json_response(await api._run_in_executor(files))
-
-    def remove() -> bool:
-        setting = preview_store.setting()
-        shutil.rmtree(setting.path or folder, ignore_errors=True)
-        return preview_store.refresh()
-
-    @routes.post("/__test__/thumbnail-folder/remove")
-    async def remove_folder(_request: web.Request) -> web.Response:
-        available = await api._run_in_executor(remove)
-        return web.json_response({"available": available})
-
-    def foreign() -> bool:
-        """Another install recreated the folder: its marker has another id."""
-        setting = preview_store.setting()
-
-        def other(marker: dict) -> None:
-            marker["id"] = "another-install"
-
-        preview_location.write_marker(setting.path, other)
-        return preview_store.refresh()
-
-    @routes.post("/__test__/thumbnail-folder/foreign")
-    async def foreign_folder(_request: web.Request) -> web.Response:
-        return web.json_response({"available": await api._run_in_executor(foreign)})
-
-    def unlisted() -> None:
-        """A source this install no longer lists left its thumbnails here."""
-        setting = preview_store.setting()
-
-        def add(marker: dict) -> None:
-            marker["keys"]["gone-0123abcd"] = {
-                "path": "/gone",
-                "identity": "/gone",
-                "install": setting.install,
-            }
-
-        preview_location.write_marker(setting.path, add)
-        gone = Path(setting.path) / "gone-0123abcd"
-        gone.mkdir()
-        (gone / "x_thumb.webp").write_bytes(b"preview")
-        preview_store.refresh()
-
-    @routes.post("/__test__/thumbnail-folder/unlisted")
-    async def unlisted_source(_request: web.Request) -> web.Response:
-        await api._run_in_executor(unlisted)
-        return web.json_response({"success": True})
-
-    @routes.post("/__test__/thumbnail-space/full")
-    async def space_full(_request: web.Request) -> web.Response:
-        """Every target disk reports 1 byte free until the next reset."""
-        thumbnail_move_plan._free = lambda _path: 1
-        return web.json_response({"success": True})
-
-    return reset

tests/browser/workflows.spec.mjs

@@ -261,20 +261,3 @@ test('prompt deletion requires confirmation and can retry after a network failur
         await expect(await request.get(url)).toBeOK();
     }
 });
-
-// #320: with previews in one folder, the legacy gallery still shows them, made
-// and served from that folder (the fixture's own previews inside the sources
-// are never served then).
-test('the legacy gallery shows thumbnails kept in one folder', async ({ page, request }) => {
-    await expect(await request.post('/__test__/thumbnail-location', { data: { mode: 'folder' } })).toBeOK();
-    const served = page.waitForResponse(response =>
-        response.url().includes('/prompt_manager/images/serve/thumbnails/') && response.status() === 200);
-    await page.goto('/prompt_manager/gallery');
-    await expect(page.locator('#galleryGrid .image-item')).toHaveCount(2);
-    const response = await served; // made in the folder before it was served
-    const name = decodeURIComponent(new URL(response.url()).pathname.split('/serve/thumbnails/')[1]);
-    const files = await (await request.get('/__test__/thumbnail-files')).json();
-    const stem = name.replace(/\.[^.]+$/, '');
-    expect(files.folder.some(file => /^[a-z0-9_-]+-[0-9a-f]{8}\//.test(file)
-        && file.slice(file.indexOf('/') + 1).replace(/\.[^.]+$/, '') === stem)).toBe(true);
-});

tests/browser/workspace-thumbnail-location.spec.mjs

@@ -1,213 +0,0 @@
-import { startCoverage, saveCoverage } from '../../tools/vendor/browser-coverage.mjs';
-import { test, expect } from './fixtures.mjs';
-import { seedConcept } from './concept-inventory.mjs';
-
-// #320 Thumbnail location (D196–D201, the approved 320 mock) on the concept-shaped real fixture: the row in System ›
-// Sources & scans reviews and runs Move thumbnails both ways, the review refuses a folder in place, and an unplugged
-// thumbnail folder shows the notice whose Recreate folder brings it back. The hooks are thumbnail_location_fixture.py's.
-const workspace = '/prompt_manager/workspace';
-const NOTICE_KEY = 'pm_update_notice_dismissed';
-
-test.beforeEach(async ({ page, request, browserName }) => {
-    await startCoverage(page, browserName);
-    await seedConcept(request);
-    await expect(await request.post('/__test__/system/reset')).toBeOK();
-    await expect(await request.post('/__test__/thumbnail-location', { data: { mode: 'source' } })).toBeOK();
-    page.locationErrors = [];
-    page.on('pageerror', error => page.locationErrors.push(error.message));
-    await page.addInitScript(key => { if (location.protocol.startsWith('http')) localStorage.setItem(key, '3.2.0'); }, NOTICE_KEY);
-});
-
-test.afterEach(async ({ page, request, browserName }) => {
-    await saveCoverage(page, browserName);
-    await request.post('/__test__/thumbnail-location', { data: { mode: 'source' } });
-    expect(page.locationErrors).toEqual([]);
-});
-
-const block = page => page.locator('#location-block');
-const dialog = page => page.locator('dialog#modal[open]');
-
-async function files(request) {
-    const response = await request.get('/__test__/thumbnail-files');
-    await expect(response).toBeOK();
-    return response.json();
-}
-
-async function openSources(page) {
-    await page.goto(`${workspace}#/system/sources`);
-    await expect(block(page).locator('#location-status')).not.toHaveText('');
-}
-
-/** Review the row's choice and start the move; resolves once its job view says it finished. */
-async function moveFromRow(page) {
-    const planned = page.waitForResponse(response => response.url().endsWith('/images/thumbnails/plan')
-        && response.request().method() === 'POST');
-    await block(page).getByRole('button', { name: 'Review move…' }).click();
-    expect((await planned).status()).toBe(200);
-    await expect(dialog(page).locator('h2')).toHaveText('Move thumbnails');
-    await dialog(page).getByRole('button', { name: 'Move thumbnails' }).click();
-    await expect(page.locator('#workspace-main h1')).toHaveText('Move thumbnails');
-    await expect(page.locator('#workspace-main')).toContainText('Thumbnails moved to');
-}
-
-test('the row moves thumbnails into one folder and back', async ({ page, request }) => {
-    await openSources(page);
-    const row = block(page);
-    await expect(row.getByRole('radio', { name: /Inside each source/ })).toBeChecked();
-    await expect(row.locator('#location-status')).toHaveText('Now: inside each source.');
-    await expect(row.getByRole('button', { name: 'Review move…' })).toHaveAttribute('aria-disabled', 'true');
-    await expect(row.locator('#location-path')).toBeDisabled();
-
-    await row.getByRole('radio', { name: /One folder/ }).check();
-    await expect(row.locator('#location-path')).toBeEnabled();
-    await expect(row.locator('#location-path')).toHaveValue(/default-thumbs$/);
-    await expect(row.locator('#location-status')).toHaveText(/^Now: inside each source\. The suggested folder is next to your library/);
-    await expect(row.getByRole('button', { name: 'Review move…' })).toHaveAttribute('aria-disabled', 'false');
-    await moveFromRow(page);
-    await expect(page.locator('#job-phase')).toHaveText(/^Thumbnails are now read from the new location/);
-    const moved = await files(request);
-    expect(moved.folder.length).toBeGreaterThan(0);
-    expect(moved.folder.every(name => /^[a-z0-9_-]+-[0-9a-f]{8}\//.test(name))).toBe(true);
-    expect(moved.source_thumbnails).toBe(false);
-
-    // Images shows thumbnails served from the folder.
-    const served = page.waitForResponse(response => response.url().includes('/images/serve/thumbnails/')
-        && response.status() === 200);
-    await page.goto(`${workspace}#/images`);
-    await served;
-
-    await openSources(page);
-    await expect(block(page).locator('#location-status')).toHaveText(/^Now: one folder, .*default-thumbs\. Using the default folder/);
-    await block(page).getByRole('radio', { name: /Inside each source/ }).check();
-    await moveFromRow(page);
-    const back = await files(request);
-    expect(back.source_thumbnails).toBe(true);
-    expect(back.folder_exists).toBe(false);
-});
-
-test('a folder the server refuses is explained under the field', async ({ page }) => {
-    await openSources(page);
-    const row = block(page);
-    await row.getByRole('radio', { name: /One folder/ }).check();
-    await row.locator('#location-path').fill('thumbnails');
-    await row.getByRole('button', { name: 'Review move…' }).click();
-    await expect(row.locator('#location-problem')).toHaveText(
-        'Enter a full folder path, such as D:\\Thumbnails or /mnt/fast/thumbnails.');
-    await expect(row.locator('#location-path')).toHaveAttribute('aria-invalid', 'true');
-    await expect(row.locator('#location-path')).toHaveAttribute('aria-describedby', 'location-problem');
-    await expect(dialog(page)).toHaveCount(0);
-    await row.locator('#location-path').fill('/somewhere/else');
-    await expect(row.locator('#location-problem')).toHaveText('');
-});
-
-test('an unplugged folder shows the notice and Recreate folder brings it back', async ({ page, request }) => {
-    await expect(await request.post('/__test__/thumbnail-location', { data: { mode: 'folder' } })).toBeOK();
-    const removed = await request.post('/__test__/thumbnail-folder/remove');
-    expect((await removed.json()).available).toBe(false);
-    await openSources(page);
-    const notice = page.locator('#unavailable-notice');
-    await expect(notice.locator('h2')).toHaveText('The thumbnail folder is unavailable');
-    await expect(notice).toContainText('is missing. Originals are shown and no thumbnails are written until it is back.');
-    await expect(block(page).locator('#location-status')).toHaveText(/· unavailable\. Originals are shown\.$/);
-    await notice.getByRole('button', { name: 'Recreate folder' }).click();
-    await expect(dialog(page).locator('h2')).toHaveText('Recreate the thumbnail folder?');
-    const recreated = page.waitForResponse(response => response.url().endsWith('/location/recreate'));
-    await dialog(page).getByRole('button', { name: 'Recreate folder' }).click();
-    expect((await recreated).status()).toBe(200);
-    await expect(notice).toHaveCount(0);
-    await expect(block(page).locator('#location-status')).toHaveText(/^Now: one folder, .*thumbs\.$/);
-});
-
-test('a folder of your own needs the confirmation before it moves', async ({ page, request }) => {
-    const custom = (await files(request)).custom_path;
-    await openSources(page);
-    const row = block(page);
-    await row.getByRole('radio', { name: /One folder/ }).check();
-    await row.locator('#location-path').fill(custom);
-    await row.getByRole('button', { name: 'Review move…' }).click();
-    const review = dialog(page);
-    await expect(review.locator('dt')).toContainText(['From', 'To', 'Thumbnails', 'Free space', 'Removed after the move']);
-    await expect(review.locator('dd').nth(1)).toHaveText(`${custom} (new folder)`);
-    const move = review.getByRole('button', { name: 'Move thumbnails' });
-    await expect(move).toHaveAttribute('aria-disabled', 'true');
-    await review.getByRole('checkbox', { name: /may create its own folders/ }).check();
-    await expect(move).toHaveAttribute('aria-disabled', 'false');
-    await move.click();
-    await expect(page.locator('#workspace-main')).toContainText('Thumbnails moved to');
-    expect((await files(request)).folder.length).toBeGreaterThan(0);
-});
-
-test('another folder’s marker offers Use this folder', async ({ page, request }) => {
-    await expect(await request.post('/__test__/thumbnail-location', { data: { mode: 'folder' } })).toBeOK();
-    await expect(await request.post('/__test__/thumbnail-folder/foreign')).toBeOK();
-    await openSources(page);
-    const notice = page.locator('#unavailable-notice');
-    await expect(notice).toContainText('holds another thumbnail folder');
-    await notice.getByRole('button', { name: 'Use this folder' }).click();
-    await expect(notice).toHaveCount(0);
-    await expect(block(page).locator('#location-status')).toHaveText(/^Now: one folder, .*thumbs\.$/);
-});
-
-test('Overview shows the notice and Change location opens the row', async ({ page, request }) => {
-    await expect(await request.post('/__test__/thumbnail-location', { data: { mode: 'folder' } })).toBeOK();
-    const removed = await request.post('/__test__/thumbnail-folder/remove');
-    expect((await removed.json()).available).toBe(false);
-    await page.goto(`${workspace}#/system/overview`);
-    const notice = page.locator('#unavailable-notice');
-    await expect(notice.locator('h2')).toHaveText('The thumbnail folder is unavailable');
-    await notice.getByRole('button', { name: 'Change location' }).click();
-    await expect(page).toHaveURL(/#\/system\/sources$/);
-    const sourcesNotice = page.locator('#unavailable-notice');
-    await sourcesNotice.getByRole('button', { name: 'Change location' }).click();
-    await expect(block(page).getByRole('radio', { name: /One folder/ })).toBeChecked();
-    await expect(block(page).locator('#location-path')).toBeFocused();
-});
-
-test('Overview’s Use this folder takes the folder and the notice goes', async ({ page, request }) => {
-    await expect(await request.post('/__test__/thumbnail-location', { data: { mode: 'folder' } })).toBeOK();
-    await expect(await request.post('/__test__/thumbnail-folder/foreign')).toBeOK();
-    await page.goto(`${workspace}#/system/overview`);
-    const notice = page.locator('#unavailable-notice');
-    await expect(notice).toContainText('holds another thumbnail folder');
-    const adopted = page.waitForResponse(response => response.url().endsWith('/location/adopt'));
-    await notice.getByRole('button', { name: 'Use this folder' }).click();
-    expect((await adopted).status()).toBe(200);
-    await expect(notice).toHaveCount(0);
-});
-
-test('Thumbnail maintenance removes the thumbnails of removed sources in folder mode', async ({ page, request }) => {
-    await expect(await request.post('/__test__/thumbnail-location', { data: { mode: 'folder' } })).toBeOK();
-    await expect(await request.post('/__test__/thumbnail-folder/unlisted')).toBeOK();
-    await openSources(page);
-    const generation = page.locator('#workspace-main .operation').filter({ hasText: 'Thumbnail generation' });
-    await generation.getByRole('button', { name: 'Review options' }).click();
-    const scope = dialog(page).locator('#thumb-mode');
-    await expect(scope.locator('option')).toHaveText(['Missing thumbnails only', 'Rebuild all (explicit opt-in)',
-        'Convert outdated (removes older formats)', 'Remove thumbnails of removed sources']);
-    await scope.selectOption('prune');
-    await expect(dialog(page).locator('[role=status]')).toHaveText(
-        /^1 source no longer listed: 1 thumbnail \(.+\) are removed\.$/);
-    await expect(dialog(page).locator('dl.meta-grid dt')).toHaveText(['gone-0123abcd']);
-    await expect(dialog(page)).toContainText('If a source comes back, its thumbnails are made again as you browse.');
-    await scope.selectOption('missing');
-    await expect(dialog(page).locator('dl.meta-grid')).toBeHidden();
-    await scope.selectOption('prune');
-    await dialog(page).getByRole('button', { name: 'Start' }).click();
-    await expect(page.locator('#workspace-main h1')).toHaveText('Remove thumbnails of removed sources');
-    await expect(page.locator('#workspace-main')).toContainText('1 thumbnails removed');
-});
-
-test('a disk without the space shows the review but cannot move', async ({ page, request }) => {
-    await expect(await request.post('/__test__/thumbnail-space/full')).toBeOK();
-    await openSources(page);
-    const row = block(page);
-    await row.getByRole('radio', { name: /One folder/ }).check();
-    const planned = page.waitForResponse(response => response.url().endsWith('/images/thumbnails/plan'));
-    await row.getByRole('button', { name: 'Review move…' }).click();
-    expect((await planned).status()).toBe(507);
-    const review = dialog(page);
-    await expect(review.locator('.review-refusal')).toHaveText(/^There is not enough space for the thumbnails: 1 B free/);
-    await expect(review.getByRole('button', { name: 'Move thumbnails' })).toHaveAttribute('aria-disabled', 'true');
-    await review.getByRole('button', { name: 'Cancel' }).click();
-    await expect(dialog(page)).toHaveCount(0);
-});

tests/fixtures/legacy_contract_snapshot.json

@@ -126,9 +126,6 @@
     "POST /prompt_manager/images/removed/return",
     "POST /prompt_manager/images/rescope",
     "POST /prompt_manager/images/reveal",
-    "POST /prompt_manager/images/thumbnails/location/adopt",
-    "POST /prompt_manager/images/thumbnails/location/recreate",
-    "POST /prompt_manager/images/thumbnails/plan",
     "POST /prompt_manager/jobs/autotag",
     "POST /prompt_manager/jobs/duplicates",
     "POST /prompt_manager/jobs/image-tags",
@@ -220,13 +217,6 @@
     "thumbnail_encoders",
     "thumbnail_encoders.jpeg",
     "thumbnail_encoders.jxl",
-    "thumbnail_encoders.webp",
-    "thumbnail_location",
-    "thumbnail_location.available",
-    "thumbnail_location.cleanup_pending",
-    "thumbnail_location.default_path",
-    "thumbnail_location.mode",
-    "thumbnail_location.path",
-    "thumbnail_location.problem"
+    "thumbnail_encoders.webp"
   ]
 }

tests/js/api-client.test.js

@@ -371,16 +371,6 @@ test("ApiError keeps the job that applied a used plan (plan-used, System S7)", (
     }
 });
 
-test("ApiError keeps a move refused for space with its review (#320)", () => {
-    const plan = { totals: { files: 3 }, insufficient: { text: "Not enough space" } };
-    assert.equal(new ApiError(507, "no space", "insufficient-space", null, { plan }).plan, plan);
-    for (const bad of [null, "x", [1], undefined]) {
-        assert.equal(new ApiError(507, "no space", "insufficient-space", null, { plan: bad }).plan, null);
-    }
-    assert.equal(new ApiError(409, "busy", "busy", null, { plan }).plan, null);
-    assert.equal(new ApiError(507, "no space", "insufficient-space").plan, null);
-});
-
 test("ApiError keeps a validated running job on busy and a validated source on invalid-source", () => {
     const body = { running: { id: "a".repeat(32), title: "Scan for metadata" }, source: "output/gone" };
     const busy = new ApiError(409, "busy", "busy", null, body);

tests/js/prompt-sender.test.js

@@ -255,8 +255,7 @@ test('All is offered only with two or more eligible nodes and is never selected
 test('Apply to All previews every node first, then sends one after another in node id order',async()=>{
     const {createSendSession,ALL_NODES}=await source;const s=await allSession(createSendSession);
     s.session.selectTarget(ALL_NODES);await s.session.apply();
-    // Each node takes a fresh ticket, the first too: the host keeps only its latest 100 (#593).
-    assert.deepEqual(order(s.calls),['preview 2','preview 9','preview 10','preview 2','apply 2','preview 9','apply 9','preview 10','apply 10']);
+    assert.deepEqual(order(s.calls),['preview 2','preview 9','preview 10','apply 2','preview 9','apply 9','preview 10','apply 10']);
     assert.equal(s.session.state.phase,'success');assert.equal(s.session.state.message,'Sent to 3 of 3 nodes in Flow - ComfyUI.');
     await s.session.apply();assert.equal(s.calls.filter(call=>call[0]==='apply').length,3);s.session.dispose();
 });
@@ -364,48 +363,3 @@ test('a changed prepend or append after the review refuses that node',async()=>{
     assert.deepEqual(s.calls.filter(call=>call[0]==='apply').map(call=>call[1]),['2','10']);
     assert.match(s.session.state.message,/^Sent to 2 of 3 nodes in Flow - ComfyUI\. #9 Node 9: Its prompt changed since the preview\./);s.session.dispose();
 });
-
-// #593: Send to All through the real Toolkit bridge and the real adapter, as the review bot reproduced it.
-function realWindow(count) {
-    const listeners=new Set();
-    const channelFactory=()=>{const own=new Set();return{
-        addEventListener(type,listener){if(type==='message'){own.add(listener);listeners.add(listener);}},removeEventListener(type,listener){listeners.delete(listener);},
-        postMessage(data){for(const listener of [...listeners])if(!own.has(listener))queueMicrotask(()=>listener({data:structuredClone(data),origin:'https://comfy.example'}));},close(){},
-    };};
-    // Like LiteGraph, a widget write moves the version of the graph it is in.
-    const graph=()=>{const made={_version:1,setDirtyCanvas(){made._version++;}};made._nodes=Array.from({length:count},(_,index)=>{
-        const widgets=['text','prepend_text','append_text'].map(name=>({name,value:name==='text'?'old':'',inputEl:{value:name==='text'?'old':''}}));
-        return {id:index+1,type:'PromptManager',title:`Node ${index+1}`,widgets,widgets_values:widgets.map(widget=>widget.value),inputs:[],setDirtyCanvas(){}};
-    });return made;};
-    return {channelFactory,graph};
-}
-async function realSend(count,{afterFirstApply}={}) {
-    const {createSendSession,ALL_NODES}=await source;
-    const {createBridgeHost,createBridgeClient}=await import('../../web/js/shared/toolkit/prompt-bridge.js');
-    const {createPromptAdapter}=await import('../../web/js/prompt-bridge-adapter.js');
-    const win=realWindow(count);const app={graph:win.graph(),canvas:{}};
-    const adapter=createPromptAdapter(app,{runtime:{}});let applied=0;
-    const watched={...adapter,apply(snapshot){const result=adapter.apply(snapshot);if(++applied===1)afterFirstApply?.(app,win);return result;}};
-    const options={namespace:'/prompt_manager/',origin:'https://comfy.example',channelFactory:win.channelFactory};
-    const host=createBridgeHost({...options,label:'Flow - ComfyUI',adapter:watched});
-    const client=createBridgeClient(options);
-    const session=createSendSession({client,roles:{positive:'new'},onChange:()=>{}});
-    try {
-        await session.discover();session.selectTarget(ALL_NODES);await session.apply();
-        return {state:session.state,app};
-    } finally { session.dispose();host.dispose(); }
-}
-test('All refuses the later nodes when another workflow is loaded after the first send (#593)',async()=>{
-    let first;
-    const {state,app}=await realSend(3,{afterFirstApply:(target,win)=>{first=target.graph;target.graph=win.graph();target.graph._version=first._version;}});
-    // The new workflow has the same ids, text and composition, and even the same graph version: only node identity differs.
-    assert.equal(first._nodes[0].widgets[0].value,'new');
-    assert.deepEqual(app.graph._nodes.map(node=>node.widgets[0].value),['old','old','old']);
-    assert.equal(state.phase,'error');
-    assert.match(state.message,/^Sent to 1 of 3 nodes in Flow - ComfyUI\. #2 Node 2: The workflow changed since this window was found\./);
-});
-test('All sends to every node of a window with more than 100 of them (#593)',async()=>{
-    const {state,app}=await realSend(101);
-    assert.equal(state.message,'Sent to 101 of 101 nodes in Flow - ComfyUI.');
-    assert.ok(app.graph._nodes.every(node=>node.widgets[0].value==='new'));
-});

tests/js/workspace-system-thumbnail-location.test.js

@@ -1,170 +0,0 @@
-// Thumbnail location (#320, D196–D201): the row's state and status line, the move review's rows, the unavailable
-// notice's text, the Activity views of a move and a prune, the prune scope's plan line and the Move library row.
-const test = require('node:test');
-const assert = require('node:assert/strict');
-
-const locationModule = import('../../web/js/workspace/system-thumbnail-location.mjs');
-const kindsModule = import('../../web/js/workspace/activity-kinds.mjs');
-const reviewModule = import('../../web/js/workspace/thumbnail-review.mjs');
-const libraryModule = import('../../web/js/workspace/library-location.mjs');
-
-const SOURCE = Object.freeze({ mode: 'source', path: null, default_path: '/data/thumbnails', available: true,
-    problem: null, cleanup_pending: 0 });
-const FOLDER = Object.freeze({ mode: 'folder', path: 'E:\\Thumbnails', default_path: '/data/thumbnails',
-    available: true, problem: null, cleanup_pending: 0 });
-
-const PLAN = Object.freeze({
-    from: { mode: 'source', path: null, available: true },
-    to: { mode: 'folder', path: 'E:\\Thumbnails', exists: true, will_create: false, default: false },
-    totals: { sources: 3, files: 8512, bytes: 1.2 * 1024 ** 3, orphans: 41, temps: 2, links: 1, left_in_place: 1,
-        too_long: 32, unlisted_sources: 0, unlisted_files: 0 },
-    too_long_listed: ['Archive 2025 · a_thumb.webp', 'Archive 2025 · b_thumb.webp'],
-    left_listed: ['Archive 2025 · notes.txt'],
-    unlisted: [],
-    free_bytes: 1.6 * 1024 ** 4,
-    confirm_required: true,
-    token: 't',
-});
-
-test('the status line says where previews are now', async () => {
-    const { statusText } = await locationModule;
-    assert.equal(statusText(SOURCE), 'Now: inside each source.');
-    assert.equal(statusText(FOLDER), 'Now: one folder, E:\\Thumbnails.');
-    assert.equal(statusText({ ...FOLDER, path: '/data/thumbnails' }),
-        'Now: one folder, /data/thumbnails. Using the default folder next to your library.');
-    assert.equal(statusText({ ...FOLDER, available: false, problem: 'missing' }),
-        'Now: one folder, E:\\Thumbnails · unavailable. Originals are shown.');
-    assert.match(statusText({ ...SOURCE, cleanup_pending: 1 }), /Old thumbnails in 1 place wait to be removed/);
-    assert.equal(statusText(undefined), '');
-    assert.match(statusText(SOURCE, { mode: 'folder', path: '/data/thumbnails' }),
-        /^Now: inside each source\. The suggested folder is next to your library/);
-    assert.equal(statusText(SOURCE, { mode: 'folder', path: '/other' }), 'Now: inside each source.');
-});
-
-test('Review move… is offered only for another location', async () => {
-    const { choiceChanged } = await locationModule;
-    assert.equal(choiceChanged(SOURCE, { mode: 'source' }), false);
-    assert.equal(choiceChanged(SOURCE, { mode: 'folder', path: ' ' }), false);
-    assert.equal(choiceChanged(SOURCE, { mode: 'folder', path: '/data/thumbnails' }), true);
-    assert.equal(choiceChanged(FOLDER, { mode: 'folder', path: 'E:\\Thumbnails' }), false);
-    assert.equal(choiceChanged(FOLDER, { mode: 'folder', path: 'F:\\Thumbs' }), true);
-    assert.equal(choiceChanged(FOLDER, { mode: 'source' }), true);
-    assert.equal(choiceChanged({ ...SOURCE, problem: 'invalid' }, { mode: 'source' }), true);
-    assert.equal(choiceChanged(undefined, { mode: 'source' }), false);
-});
-
-test('the review lists what moves, what is removed and what stays', async () => {
-    const { reviewRows } = await locationModule;
-    const rows = Object.fromEntries(reviewRows(PLAN));
-    assert.equal(rows.From, 'Inside each source (3 sources)');
-    assert.equal(rows.To, 'E:\\Thumbnails (empty folder)');
-    assert.equal(rows.Thumbnails, '8,512 in 3 sources · 1.2 GB');
-    assert.equal(rows['Free space'], '1638.4 GB free');
-    assert.match(rows['Too long for Windows'][0], /^32 thumbnails cannot be stored there/);
-    assert.deepEqual(rows['Too long for Windows'][1], [...PLAN.too_long_listed, 'and 30 more']);
-    assert.deepEqual(rows['Removed after the move'][1],
-        ['41 thumbnails whose original is gone', '2 unfinished temporary files']);
-    assert.equal(rows['Left in place'][0], '1 file that is not a thumbnail:');
-    assert.equal(rows['Links skipped'], '1 link inside a thumbnails folder is not followed');
-});
-
-test('the review of a move back names the folder and the removed sources', async () => {
-    const { reviewRows } = await locationModule;
-    const back = reviewRows({ ...PLAN, from: { mode: 'folder', path: '/data/thumbnails' },
-        to: { mode: 'source', path: null }, unlisted: [{ key: 'old-1c22e0a4', files: 240 }],
-        totals: { sources: 1, files: 1, bytes: 10 }, free_bytes: undefined });
-    const rows = Object.fromEntries(back);
-    assert.equal(rows.From, '/data/thumbnails');
-    assert.equal(rows.To, 'Inside each source (1 source)');
-    assert.equal(rows['Free space'], undefined);
-    assert.match(rows['Removed after the move'][0], /The folder itself is removed once empty/);
-    assert.deepEqual(rows['Removed after the move'][1],
-        ['1 source no longer listed: 240 thumbnails are removed; they are made again if it returns']);
-    // Nothing else removed: one full stop, never "created it.." (live test of #592).
-    const plain = Object.fromEntries(reviewRows({ ...PLAN, from: { mode: 'folder', path: '/data/thumbnails' },
-        to: { mode: 'source', path: null }, unlisted: [], totals: { sources: 1, files: 1, bytes: 10 } }));
-    assert.match(plain['Removed after the move'][0], /Prompt Manager created it\.$/);
-    const fresh = Object.fromEntries(reviewRows({ ...PLAN, to: { mode: 'folder', path: '/d', default: true, will_create: true } }));
-    assert.equal(fresh.To, '/d (new, next to your library)');
-});
-
-test('the notice says why the folder is unavailable', async () => {
-    const { noticeText } = await locationModule;
-    assert.match(noticeText({ ...FOLDER, problem: 'missing' }), /^E:\\Thumbnails is missing\. Originals are shown/);
-    assert.match(noticeText({ ...FOLDER, problem: 'unreachable' }), /can’t be reached/);
-    assert.match(noticeText({ ...FOLDER, problem: 'marker-mismatch' }), /holds another thumbnail folder/);
-    assert.match(noticeText({ ...FOLDER, problem: 'invalid' }), /config\.json can’t be used/);
-    assert.match(noticeText({ ...FOLDER, problem: null }), /is being checked/);
-});
-
-test('sizes are written as the server writes them', async () => {
-    const { sizeText } = await locationModule;
-    assert.equal(sizeText(512), '512 B');
-    assert.equal(sizeText(85.2 * 1024 * 1024), '85.2 MB');
-});
-
-test('a move and a prune show their own tiles in Activity', async () => {
-    const { viewOf, movePhase, finishToast } = await kindsModule;
-    const move = { kind: 'thumbnails', state: 'running', cancellable: true, scope: { mode: 'move', from: 'source' },
-        counters: { moved: 3, skipped: 0, left: 1, errors: 2 }, status_line: '' };
-    assert.deepEqual(viewOf(move).tiles.map(([group, label]) => label), ['Moved', 'Already there', 'Left in place', 'Errors']);
-    assert.equal(viewOf(move).cancelLabel, 'Cancel move');
-    assert.match(movePhase(move), /^Step 1 of 3: copying\. Thumbnails are still read from inside each source/);
-    assert.match(movePhase({ ...move, cancellable: false }), /can no longer be cancelled/);
-    assert.match(movePhase({ ...move, scope: { mode: 'move', phase: 'remove' } }), /Removing the old copies/);
-    assert.match(movePhase({ ...move, state: 'finished' }), /1 file that is not a thumbnail was left in place/);
-    assert.match(movePhase({ ...move, state: 'cancelled' }), /^Nothing changed/);
-    assert.match(movePhase({ ...move, state: 'finished', counters: { moved: 3, left: 2 } }),
-        /2 files that are not thumbnails were left in place\.$/);
-    assert.equal(movePhase({ ...move, state: 'finished', counters: undefined }), 'Thumbnails are now read from the new location.');
-    assert.match(movePhase({ ...move, scope: { mode: 'move', from: 'folder' } }), /read from the old folder until the switch/);
-    const done = { ...move, state: 'finished', status_line: 'Thumbnails moved to E:\\T: 3 moved · old copies removed.' };
-    assert.equal(finishToast(done), done.status_line);
-    const prune = { kind: 'thumbnails', state: 'running', cancellable: true, scope: { mode: 'prune' },
-        counters: { removed: 1, left: 0, errors: 0 } };
-    assert.deepEqual(viewOf(prune).tiles.map(([, label]) => label), ['Removed', 'Left in place', 'Errors']);
-    assert.equal(viewOf(move).line(move), '');
-    assert.equal(viewOf(done).line(done), done.status_line);
-    assert.equal(viewOf(move).kept(move), '3 moved');
-    assert.equal(finishToast({ ...move, state: 'cancelled', status_line: '' }), viewOf(move).finishToast({ ...move,
-        state: 'cancelled', status_line: '' }));
-    const pruned = { ...prune, state: 'finished', status_line: '1 thumbnails removed' };
-    assert.equal(viewOf(prune).line(prune), '');
-    assert.equal(viewOf(pruned).line(pruned), '1 thumbnails removed');
-    assert.equal(viewOf(pruned).line({ ...pruned, status_line: null }), '');
-    assert.equal(viewOf(done).line({ ...done, status_line: null }), '');
-    assert.equal(finishToast(pruned), '1 thumbnails removed');
-    assert.equal(viewOf(prune).kept(prune), '1 removed');
-    assert.match(finishToast({ ...prune, state: 'finished', status_line: '', title: 'Remove thumbnails of removed sources' }),
-        /Remove thumbnails of removed sources/);
-    const generate = { kind: 'thumbnails', state: 'running', cancellable: true, scope: { mode: 'missing' },
-        counters: { generated: 0, skipped: 0, errors: 0 } };
-    assert.deepEqual(viewOf(generate).tiles.map(([, label]) => label), ['Generated', 'Skipped', 'Errors']);
-});
-
-test('the prune scope reads its plan line from the server', async () => {
-    const { planText, PLAN_FAILED, PRUNE_OPTION } = await reviewModule;
-    assert.equal(PRUNE_OPTION[1], 'Remove thumbnails of removed sources');
-    assert.equal(planText({ mode: 'prune', line: '2 sources no longer listed: 1,240 thumbnails (85.2 MB) are removed.' }),
-        '2 sources no longer listed: 1,240 thumbnails (85.2 MB) are removed.');
-    assert.equal(planText({ mode: 'prune' }), PLAN_FAILED);
-});
-
-test('the prune review names the folder and each removed source', async () => {
-    const { pruneText, pruneEntries } = await reviewModule;
-    assert.match(pruneText({ folder: 'E:\\Thumbs' }), /^Only Prompt Manager’s thumbnails in their folders inside E:\\Thumbs are /);
-    assert.match(pruneText({}), /inside the thumbnail folder are removed\. If a source comes back/);
-    assert.deepEqual(pruneEntries({ sources: [{ key: 'gone-0123abcd', files: 1240, bytes: 85.2 * 1024 * 1024 },
-        { key: 'one-0123abcd', files: 1, bytes: 512 }] }),
-    [['gone-0123abcd', '1,240 thumbnails · 85.2 MB'], ['one-0123abcd', '1 thumbnail · 512 B']]);
-    assert.deepEqual(pruneEntries(null), []);
-    assert.deepEqual(pruneEntries({ sources: 'x' }), []);
-});
-
-test('Move library says where thumbnails kept in one folder stay', async () => {
-    const { reviewGrid } = await libraryModule;
-    const base = { path: 'p', target: 't', size_bytes: 0, config_moves: true };
-    assert.equal(reviewGrid(base).some(([term]) => term === 'Thumbnails'), false);
-    const rows = Object.fromEntries(reviewGrid({ ...base, thumbnails_folder: '/data/thumbnails' }));
-    assert.equal(rows.Thumbnails, 'Stay in /data/thumbnails. Move them in System › Sources & scans.');
-});

tests/test_api_core.py

@@ -796,7 +796,6 @@ class TestRevalidatedCachingBehindMiddlewares(CoreRoutesTestCase):
             self.assertEqual(resp.status, 200, path)
             self.assertEqual(resp.headers.get("Content-Encoding"), "gzip", path)
             self.assertEqual(resp.headers["Cache-Control"], "no-cache", path)
-            await resp.read()  # aiohttp before 3.11.11 hangs on an unread body
             again = await self.client.request(
                 "GET",
                 path,
@@ -807,7 +806,6 @@ class TestRevalidatedCachingBehindMiddlewares(CoreRoutesTestCase):
             )
             self.assertEqual(again.status, 304, path)
             self.assertEqual(again.headers["Cache-Control"], "no-cache", path)
-            await again.read()
 
 
 # ── instance helpers ──────────────────────────────────────────────────

tests/test_api_library_location.py

@@ -91,8 +91,6 @@ class TestLocationRoute(LibraryAPITestCase):
                 "size_bytes": os.path.getsize(self.api.db.model.db_path),
                 "target_source": "default",
                 "config_moves": True,
-                # #320 D201: previews kept inside each source (no folder).
-                "thumbnails_folder": None,
             },
         )
 

tests/test_api_thumbnail_location.py

@@ -1,487 +0,0 @@
-"""The thumbnail location setting (#320 PR 2): parsing, validation, source
-keys, the marker, the settings payloads and reverse containment.
-
-Spelling rules are tested on both path flavors (``ntpath`` and
-``posixpath``) as text; filesystem rules run on the native one.
-"""
-
-import json
-import ntpath
-import os
-import posixpath
-import re
-import sys
-import tempfile
-import threading
-import unittest
-from pathlib import Path
-from unittest.mock import MagicMock, patch
-
-sys.path.insert(0, os.path.dirname(os.path.dirname(os.path.abspath(__file__))))
-sys.modules.setdefault("server", MagicMock())
-
-from py.api import preview_location as pl  # noqa: E402
-from py.api import preview_store  # noqa: E402
-
-REPO = Path(__file__).resolve().parent.parent
-
-
-class TestParse(unittest.TestCase):
-    def test_missing_or_source_is_inside_each_source(self):
-        for value in (None, {"mode": "source"}, {}):
-            with self.subTest(value=value):
-                parsed = pl.parse_location(value)
-                self.assertEqual((parsed.mode, parsed.problem), ("source", None))
-
-    def test_a_folder_location_is_kept_as_spelled(self):
-        parsed = pl.parse_location(
-            {"mode": "folder", "path": "D:\\Thumbs", "id": "x", "install": "i"},
-            flavor=ntpath,
-        )
-        self.assertEqual(
-            (parsed.mode, parsed.path, parsed.id, parsed.problem),
-            ("folder", "D:\\Thumbs", "x", None),
-        )
-
-    def test_invalid_values_never_fall_back_to_the_sources(self):
-        for value in (
-            "folder",
-            {"mode": "elsewhere"},
-            {"mode": "folder", "path": "relative", "id": "x"},
-            {"mode": "folder", "path": "/abs"},
-            {"mode": "folder", "path": "/abs", "id": ""},
-            {"mode": "folder", "path": 7, "id": "x"},
-        ):
-            with self.subTest(value=value):
-                parsed = pl.parse_location(value, flavor=posixpath)
-                self.assertEqual((parsed.mode, parsed.problem), ("folder", "invalid"))
-
-
-class TestForm(unittest.TestCase):
-    def test_windows_spellings(self):
-        cases = {
-            "D:\\Thumbs": None,
-            "\\\\server\\share\\thumbs": None,
-            "C:thumbs": "location-not-absolute",
-            "\\thumbs": "location-not-absolute",
-            "thumbs": "location-not-absolute",
-            "": "location-not-absolute",
-            " D:\\Thumbs": "location-not-absolute",
-            "\\\\?\\D:\\Thumbs": "location-device-path",
-            "\\\\.\\D:\\Thumbs": "location-device-path",
-            "D:\\CON\\x": "location-invalid-name",
-            "D:\\com1.txt": "location-invalid-name",
-            "D:\\thumbs.": "location-invalid-name",
-            "D:\\thumbs ": "location-invalid-name",
-            "D:\\a|b": "location-invalid-name",
-            "D:\\a?b": "location-invalid-name",
-            "D:\\a\x01b": "location-invalid-name",
-        }
-        for path, code in cases.items():
-            with self.subTest(path=path):
-                self.assertEqual(pl.form_problem(path, flavor=ntpath), code)
-
-    def test_posix_spellings(self):
-        cases = {
-            "/mnt/fast/thumbs": None,
-            "mnt/thumbs": "location-not-absolute",
-            "/mnt/nul": "location-invalid-name",
-            "/mnt/a:b": "location-invalid-name",
-            "//?/x": "location-device-path",
-        }
-        for path, code in cases.items():
-            with self.subTest(path=path):
-                self.assertEqual(pl.form_problem(path, flavor=posixpath), code)
-
-    def test_roots_and_home_are_too_broad(self):
-        self.assertTrue(pl.is_too_broad("C:\\", home="C:\\Users\\a", flavor=ntpath))
-        self.assertTrue(
-            pl.is_too_broad("\\\\server\\share", home="C:\\Users\\a", flavor=ntpath)
-        )
-        self.assertTrue(
-            pl.is_too_broad("C:\\users\\A", home="C:\\Users\\a", flavor=ntpath)
-        )
-        self.assertTrue(pl.is_too_broad("/", home="/home/a", flavor=posixpath))
-        self.assertTrue(pl.is_too_broad("/home/a/", home="/home/a", flavor=posixpath))
-        self.assertFalse(
-            pl.is_too_broad("/home/a/thumbs", home="/home/a", flavor=posixpath)
-        )
-
-    def test_long_windows_paths_are_refused_without_long_paths(self):
-        short = "D:\\" + "a" * 100
-        long = "D:\\" + "a" * 200
-        self.assertFalse(pl.too_long_for_windows(short, long_paths=False))
-        self.assertTrue(pl.too_long_for_windows(long, long_paths=False))
-        self.assertFalse(pl.too_long_for_windows(long, long_paths=True))
-
-
-class TestSourceKeys(unittest.TestCase):
-    def test_slug(self):
-        self.assertEqual(pl.slug("ComfyUI Output"), "comfyui-output")
-        self.assertEqual(pl.slug("Ünïcödé_Fôlder"), "unicode_folder")
-        self.assertEqual(pl.slug(""), "source")
-        self.assertEqual(pl.slug("!!!"), "source")
-        self.assertEqual(len(pl.slug("x" * 80)), 24)
-
-    def test_keys_are_a_slug_plus_a_hash(self):
-        key = pl.source_key("D:\\AI\\Output", "d:\\ai\\output", {})
-        self.assertRegex(key, r"^output-[0-9a-f]{8}$")
-        self.assertRegex(pl.source_key("D:\\", "d:\\", {}), r"^source-[0-9a-f]{8}$")
-        self.assertRegex(
-            pl.source_key("\\\\nas\\share\\Out", "\\\\nas\\share\\out", {}),
-            r"^out-[0-9a-f]{8}$",
-        )
-
-    def test_a_taken_key_grows_its_hash(self):
-        first = pl.source_key("/a/out", "/a/out", {})
-        taken = {first: "/someone/else"}
-        second = pl.source_key("/a/out", "/a/out", taken)
-        self.assertRegex(second, r"^out-[0-9a-f]{12}$")
-        taken[second] = "/another"
-        self.assertRegex(
-            pl.source_key("/a/out", "/a/out", taken), r"^out-[0-9a-f]{16}$"
-        )
-        self.assertEqual(pl.source_key("/a/out", "/a/out", {first: "/a/out"}), first)
-
-    def test_lookup_by_spelling_identity_then_file_id(self):
-        keys = {
-            "out-0123abcd": {
-                "path": "D:\\Out",
-                "identity": "d:\\out",
-                "dev_ino": [1, 2],
-            },
-            "lib-0123abcd": {"path": "E:\\Lib", "identity": "e:\\lib", "dev_ino": None},
-        }
-        self.assertEqual(pl.find_key(keys, "D:\\Out", "x", None), "out-0123abcd")
-        self.assertEqual(pl.find_key(keys, "Z:\\Out", "d:\\out", None), "out-0123abcd")
-        # A letter spelling and its UNC spelling: the same file id.
-        self.assertEqual(
-            pl.find_key(keys, "\\\\nas\\out", "\\\\nas\\out", (1, 2)), "out-0123abcd"
-        )
-        self.assertIsNone(pl.find_key(keys, "F:\\New", "f:\\new", (9, 9)))
-
-
-class TestMarker(unittest.TestCase):
-    def setUp(self):
-        self._tmp = tempfile.TemporaryDirectory()
-        self.addCleanup(self._tmp.cleanup)
-        self.folder = self._tmp.name
-
-    def test_init_creates_once_and_adopts_after(self):
-        first = pl.init_folder(self.folder, created_by_pm=True)
-        self.assertEqual(pl.init_folder(self.folder), first)
-        marker = pl.read_marker(self.folder)
-        self.assertEqual(marker["id"], first)
-        self.assertTrue(marker["created_by_pm"])
-        self.assertEqual(marker["version"], 1)
-
-    def test_writes_merge_what_another_writer_added(self):
-        pl.init_folder(self.folder)
-        pl.write_marker(
-            self.folder, lambda m: m["keys"].update({"a-0123abcd": {"install": "1"}})
-        )
-        pl.write_marker(
-            self.folder, lambda m: m["keys"].update({"b-0123abcd": {"install": "2"}})
-        )
-        self.assertEqual(
-            sorted(pl.read_marker(self.folder)["keys"]), ["a-0123abcd", "b-0123abcd"]
-        )
-        # No temp file is left beside it.
-        self.assertEqual(os.listdir(self.folder), [pl.MARKER_NAME])
-
-    def test_two_processes_adding_keys_at_once_keep_every_key(self):
-        """Installs sharing one folder (bot review, P2): the read-modify-write
-        of the marker is locked across processes, so no writer drops another's
-        key. Each child widens the window by pausing inside ``mutate``."""
-        import subprocess
-
-        pl.init_folder(self.folder)
-        child = (
-            "import sys, time\n"
-            "sys.path.insert(0, sys.argv[1])\n"
-            "from py.api import preview_location as pl\n"
-            "folder, tag, start = sys.argv[2], sys.argv[3], float(sys.argv[4])\n"
-            "while time.time() < start: time.sleep(0.001)\n"
-            "for n in range(8):\n"
-            "    def add(m, n=n):\n"
-            "        time.sleep(0.01)\n"
-            "        m['keys'][f'{tag}-{n:08x}'] = {'install': tag}\n"
-            "    pl.write_marker(folder, add)\n"
-        )
-        import time
-
-        start = str(time.time() + 1.0)
-        procs = [
-            subprocess.Popen(  # nosec B603 - this interpreter, fixed arguments
-                [sys.executable, "-c", child, str(REPO), self.folder, tag, start]
-            )
-            for tag in ("a", "b", "c")
-        ]
-        for proc in procs:
-            self.assertEqual(proc.wait(timeout=60), 0)
-        keys = pl.read_marker(self.folder)["keys"]
-        self.assertEqual(len(keys), 24, sorted(keys))
-        self.assertEqual(os.listdir(self.folder), [pl.MARKER_NAME])
-
-    def test_a_lock_left_by_a_crashed_writer_is_taken_over_when_stale(self):
-        pl.init_folder(self.folder)
-        lock = os.path.join(self.folder, pl.MARKER_LOCK_NAME)
-        with open(lock, "w", encoding="utf-8") as handle:
-            handle.write("crashed")
-        old = pl.time.time() - pl.MARKER_LOCK_STALE - 5
-        os.utime(lock, (old, old))
-        pl.write_marker(self.folder, lambda m: m["keys"].update({"a-0123abcd": {}}))
-        self.assertIn("a-0123abcd", pl.read_marker(self.folder)["keys"])
-        self.assertFalse(os.path.exists(lock))
-
-    def test_a_held_lock_times_out_without_writing(self):
-        pl.init_folder(self.folder)
-        lock = os.path.join(self.folder, pl.MARKER_LOCK_NAME)
-        with open(lock, "w", encoding="utf-8") as handle:
-            handle.write("held")
-        with patch.object(pl, "MARKER_LOCK_TIMEOUT", 0.05):
-            with self.assertRaises(TimeoutError):
-                pl.write_marker(self.folder, lambda m: m["keys"].update({"x": {}}))
-        self.assertTrue(os.path.exists(lock))  # never taken from its holder
-        self.assertEqual(pl.read_marker(self.folder)["keys"], {})
-
-    def test_a_folder_without_the_marker_is_missing(self):
-        self.assertEqual(pl.folder_state(self.folder, "x")[:2], (False, "missing"))
-        missing = os.path.join(self.folder, "gone")
-        self.assertEqual(pl.folder_state(missing, "x")[:2], (False, "missing"))
-        marker_id = pl.init_folder(self.folder)
-        self.assertEqual(pl.folder_state(self.folder, marker_id)[:2], (True, None))
-        self.assertEqual(
-            pl.folder_state(self.folder, "other")[:2], (False, "marker-mismatch")
-        )
-
-    @unittest.skipUnless(hasattr(os, "symlink"), "needs symlinks")
-    def test_a_linked_folder_is_not_available(self):
-        real = os.path.join(self.folder, "real")
-        os.mkdir(real)
-        marker_id = pl.init_folder(real)
-        link = os.path.join(self.folder, "link")
-        try:
-            os.symlink(real, link, target_is_directory=True)
-        except OSError:
-            self.skipTest("symlinks not permitted")
-        self.assertEqual(pl.folder_state(link, marker_id)[:2], (False, "invalid"))
-
-
-class TestValidation(unittest.TestCase):
-    def setUp(self):
-        self._tmp = tempfile.TemporaryDirectory()
-        self.addCleanup(self._tmp.cleanup)
-        self.base = os.path.realpath(self._tmp.name)
-        self.source = os.path.join(self.base, "output")
-        self.node = os.path.join(self.base, "node")
-        os.mkdir(self.source)
-        os.mkdir(self.node)
-        self.context = pl.Context(
-            roots=(self.source,),
-            node_folder=self.node,
-            default_path=os.path.join(self.node, "data", "thumbnails"),
-            home=os.path.join(self.base, "home"),
-            environ={},
-            long_paths=True,
-            folder_paths=None,
-        )
-
-    def problem(self, path, purpose="move", **changes):
-        context = self.context
-        if changes:
-            context = pl.Context(**{**context.__dict__, **changes})
-        return pl.location_problem(path, purpose=purpose, context=context)
-
-    def test_an_empty_new_folder_beside_the_sources_is_accepted(self):
-        self.assertIsNone(self.problem(os.path.join(self.base, "thumbs")))
-        os.mkdir(os.path.join(self.base, "empty"))
-        Path(self.base, "empty", "Thumbs.db").write_bytes(b"")
-        self.assertIsNone(self.problem(os.path.join(self.base, "empty")))
-
-    def test_codes(self):
-        cases = {
-            "relative": "location-not-absolute",
-            os.path.join(self.source, "thumbs"): "location-served",
-            os.path.join(self.node, "thumbs"): "location-node-folder",
-            self.base: "location-contains-source",
-            os.path.join(self.base, "no", "parent"): "location-parent-missing",
-        }
-        for path, code in cases.items():
-            with self.subTest(path=path):
-                self.assertEqual(self.problem(path), code)
-
-    def test_the_default_may_sit_in_the_node_folder_and_make_its_parents(self):
-        self.assertIsNone(self.problem(self.context.default_path))
-
-    def test_the_folder_in_use_is_the_same(self):
-        folder = os.path.join(self.base, "thumbs")
-        os.mkdir(folder)
-        self.assertEqual(self.problem(folder, current_path=folder), "location-same")
-
-    def test_a_folder_inside_the_folder_in_use_is_refused(self):
-        # Codex P2 on #592: the old key folders are removed after the move,
-        # and with them a target nested inside one of them.
-        folder = os.path.join(self.base, "thumbs")
-        os.mkdir(folder)
-        pl.init_folder(folder)
-        for nested in (
-            os.path.join(folder, "output-0123abcd", "nested"),
-            os.path.join(folder, "beside"),
-        ):
-            with self.subTest(nested=nested):
-                self.assertEqual(
-                    self.problem(nested, current_path=folder),
-                    "location-inside-current",
-                )
-
-    def test_a_folder_with_other_files_is_not_empty_unless_it_is_ours(self):
-        folder = os.path.join(self.base, "full")
-        os.mkdir(folder)
-        Path(folder, "photo.jpg").write_bytes(b"x")
-        self.assertEqual(self.problem(folder), "location-not-empty")
-        pl.init_folder(folder)
-        self.assertIsNone(self.problem(folder))
-
-    @unittest.skipIf(os.name == "nt" or os.geteuid() == 0, "needs POSIX modes")
-    def test_a_folder_that_refuses_writes(self):
-        folder = os.path.join(self.base, "ro")
-        os.mkdir(folder)
-        os.chmod(folder, 0o500)
-        self.addCleanup(os.chmod, folder, 0o700)
-        self.assertEqual(self.problem(folder), "location-not-writable")
-
-    def test_a_stat_that_does_not_answer_is_unavailable(self):
-        release = threading.Event()
-        self.addCleanup(release.set)
-
-        def stuck(*_args):
-            release.wait(10)
-
-        with patch.object(pl, "_filesystem_problem", stuck):
-            code = pl.location_problem(
-                os.path.join(self.base, "thumbs"),
-                purpose="move",
-                context=self.context,
-                timeout=0.1,
-            )
-        self.assertEqual(code, "location-unavailable")
-
-    def test_a_long_windows_path(self):
-        path = os.path.join(self.base, "t" * 220)
-        self.assertEqual(self.problem(path, long_paths=False), "location-path-too-long")
-
-    def test_every_code_has_a_message_without_a_path(self):
-        for code, (status, text) in pl.MESSAGES.items():
-            with self.subTest(code=code):
-                self.assertIn(status, (400, 409, 507))
-                self.assertTrue(text.endswith("."))
-
-
-class TestNoLegacySaveCallers(unittest.TestCase):
-    def test_save_to_file_has_no_callers(self):
-        offenders = []
-        for folder in ("py", "utils", "database"):
-            for path in (REPO / folder).rglob("*.py"):
-                for number, line in enumerate(
-                    path.read_text(encoding="utf-8").splitlines(), 1
-                ):
-                    code = line.split("#", 1)[0]
-                    if (
-                        re.search(r"\bsave_to_file\(", code)
-                        and "def save_to_file" not in code
-                    ):
-                        if "PromptManagerConfig.save_to_file('" in line:
-                            continue  # its own docstring example
-                        offenders.append(f"{path.relative_to(REPO)}:{number}")
-        self.assertEqual(offenders, [])
-
-
-try:
-    from tests.test_api_images import ImageAPITestCase
-except ImportError:  # discovered with tests/ as the top-level directory
-    from test_api_images import ImageAPITestCase
-
-
-class TestLocationRoutes(ImageAPITestCase):
-    async def asyncSetUp(self):
-        await super().asyncSetUp()
-        self.addCleanup(preview_store.configure, None)
-
-    def use_folder(self):
-        folder = self.comfy_dir / "thumbs"
-        folder.mkdir()
-        marker_id = pl.init_folder(str(folder), created_by_pm=True)
-        preview_store.configure(
-            {"mode": "folder", "path": str(folder), "id": marker_id}
-        )
-        return folder
-
-    async def test_settings_get_names_the_location_with_its_path(self):
-        folder = self.use_folder()
-        resp = await self.client.get("/prompt_manager/settings")
-        location = (await resp.json())["thumbnail_location"]
-        self.assertEqual(location["mode"], "folder")
-        self.assertEqual(location["path"], str(folder))
-        self.assertTrue(location["available"])
-        self.assertIsNone(location["problem"])
-        self.assertIn("default_path", location)
-
-    async def test_settings_post_never_changes_the_location(self):
-        resp = await self.client.post(
-            "/prompt_manager/settings",
-            json={"thumbnail_location": {"mode": "folder", "path": "/x"}},
-        )
-        self.assertEqual(resp.status, 409)
-        body = await resp.json()
-        self.assertEqual(body["code"], "location-needs-move")
-        self.assertNotIn("/x", body["error"])
-
-    async def test_status_has_the_location_but_no_path(self):
-        folder = self.use_folder()
-        resp = await self.client.get("/prompt_manager/images/thumbnails/status")
-        body = await resp.text()
-        self.assertNotIn(str(folder), body)
-        self.assertEqual(
-            json.loads(body)["location"],
-            {"mode": "folder", "available": True, "problem": None},
-        )
-
-    async def test_a_source_inside_or_around_the_folder_is_refused(self):
-        from py.api import sources
-
-        folder = self.use_folder()
-        inside = folder / "sub"
-        inside.mkdir()
-        with patch(
-            "py.config.GalleryConfig.gallery_root_problem",
-            classmethod(lambda cls, path: (None, "")),
-        ):
-            for path in (inside, folder, self.comfy_dir):
-                with self.subTest(path=path):
-                    code, reason = sources.source_problem(str(path))
-                    self.assertEqual(code, "holds-thumbnails")
-                    self.assertEqual(reason, pl.HOLDS_THUMBNAILS_REASON)
-            self.assertEqual(sources.source_problem(str(self.output_dir))[0], None)
-
-    async def test_a_library_move_into_the_folder_is_refused(self):
-        from py.api import library_location as routes
-
-        folder = self.use_folder()
-        self.assertTrue(routes._inside_thumbnail_folder(str(folder / "lib")))
-        self.assertFalse(routes._inside_thumbnail_folder(str(self.output_dir)))
-
-    def test_startup_makes_a_location_inside_a_source_invalid(self):
-        inside = self.output_dir / "thumbs"
-        inside.mkdir()
-        marker_id = pl.init_folder(str(inside))
-        from py.config import PromptManagerConfig
-
-        value = {"mode": "folder", "path": str(inside), "id": marker_id}
-        with patch.object(PromptManagerConfig, "THUMBNAIL_LOCATION", value):
-            location = self.api.start_preview_location()
-        self.assertEqual((location.available, location.problem), (False, "invalid"))
-
-
-if __name__ == "__main__":
-    unittest.main()

tests/test_lora_import.py

@@ -1061,78 +1061,17 @@ class LoraImportRefusalTests(LoraImportAPITestCase):
             job = await self._failed_job()
         self.assertEqual(job.scope["failure"], "backup-failed")
 
-    async def test_cancel_while_it_stages_writes_nothing(self):
-        # #575: held at a download, so the cancel lands while it stages.
+    async def test_cancel_right_after_the_start_writes_nothing(self):
         self._two_loras()
         before = _snapshot(self.api.db)
-        self.gate = threading.Event()
-        _plan, job = await self._apply_reviewed()
-        loop = asyncio.get_running_loop()
-        self.assertTrue(await loop.run_in_executor(None, self.downloading.wait, 10))
-        self.assertTrue(self.api._jobs.cancel(job.id))
-        self.gate.set()
+        resp, plan = await self._post(PREVIEW)
+        resp, body = await self._post(APPLY, {"token": plan["token"]})
+        job = self.api._jobs.get(body["job"]["id"])
+        self.api._jobs.cancel(job.id)  # at once, while it stages
         await job.task
         self.assertEqual(job.state, "cancelled")
         self.assertEqual(_snapshot(self.api.db), before)
 
-    async def test_a_cancel_accepted_as_staging_ends_writes_nothing(self):
-        # #575: staging already passed its last cancel check and returned; a
-        # cancel accepted before the job resumes still stops it before the
-        # commit, so a request answered "cancellation_requested" holds.
-        self._two_loras()
-        before = _snapshot(self.api.db)
-        staged, release = threading.Event(), threading.Event()
-        real_stage = lora_import.stage
-
-        def held_stage(*args, **kwargs):
-            result = real_stage(*args, **kwargs)
-            staged.set()
-            release.wait(10)
-            return result
-
-        loop = asyncio.get_running_loop()
-        with patch.object(lora_import, "stage", held_stage):
-            _plan, job = await self._apply_reviewed()
-            try:
-                self.assertTrue(await loop.run_in_executor(None, staged.wait, 10))
-                self.assertTrue(self.api._jobs.cancel(job.id))
-            finally:
-                release.set()
-            await job.task
-        self.assertEqual(job.state, "cancelled", job.log)
-        self.assertEqual(_snapshot(self.api.db), before)
-
-    async def test_a_cancel_after_the_commit_point_is_refused(self):
-        # #575: once staging is done the job is no longer cancellable; a
-        # late cancel is refused (the route answers it as not requested) and
-        # the job truthfully ends "finished" with the import written.
-        self._two_loras()
-        before = _snapshot(self.api.db)
-        replacing, release = threading.Event(), threading.Event()
-        real_replace = self.api.db.replace_category_prompts
-
-        def held_replace(*args, **kwargs):
-            replacing.set()
-            release.wait(10)
-            return real_replace(*args, **kwargs)
-
-        loop = asyncio.get_running_loop()
-        with patch.object(self.api.db, "replace_category_prompts", held_replace):
-            _plan, job = await self._apply_reviewed()
-            try:
-                self.assertTrue(await loop.run_in_executor(None, replacing.wait, 10))
-                self.assertFalse(job.summary()["cancellable"])
-                resp = await self.client.request(
-                    "POST", f"/prompt_manager/jobs/{job.id}/cancel"
-                )
-                body = json.loads(await resp.text())
-            finally:
-                release.set()
-            await job.task
-        self.assertFalse(body["cancellation_requested"])
-        self.assertEqual(job.state, "finished", job.log)
-        self.assertNotEqual(_snapshot(self.api.db), before)
-
 
 def plan_title():
     return lora_import.JOB_TITLE

tests/test_maintenance_pair_metadata.py

@@ -171,7 +171,7 @@ class TestClassification(PairMetadataCase):
         self.assertEqual(self.preview().targets, [[prompt, True, True]])
 
     def test_category_is_case_sensitive(self):
-        self.pair("case", "n1", category="Portrait")
+        _a, prompt = self.pair("case", "n1", category="Portrait")
         self.pair("case", "n2", category="portrait")
         draft = self.preview()
         self.assertEqual(draft.targets, [])
@@ -292,7 +292,7 @@ class TestClassification(PairMetadataCase):
         )
 
     def test_protected_rows_come_first_within_fifty(self):
-        self.pair("zz conflict", "n1", category="x")
+        _c, conflict = self.pair("zz conflict", "n1", category="x")
         self.pair("zz conflict", "n2", category="y")
         for n in range(60):
             self.pair(f"fill {n:02d}", category="portrait")

tests/test_native_memory.py

@@ -2,7 +2,7 @@
 
 import sys
 import unittest
-import unittest.mock as mock
+from unittest import mock
 
 from utils import native_memory
 
@@ -10,9 +10,7 @@ from utils import native_memory
 class ReleaseFreeMemoryTests(unittest.TestCase):
     def setUp(self):
         # Each test looks the symbol up again.
-        patcher = mock.patch.object(
-            native_memory, "_trim", native_memory._NOT_LOOKED_UP
-        )
+        patcher = mock.patch.multiple(native_memory, _trim=None, _looked_up=False)
         patcher.start()
         self.addCleanup(patcher.stop)
 
@@ -24,7 +22,7 @@ class ReleaseFreeMemoryTests(unittest.TestCase):
     def test_other_platforms_do_nothing(self):
         for platform in ("win32", "darwin", "cygwin"):
             with self.subTest(platform), mock.patch.object(sys, "platform", platform):
-                native_memory._trim = native_memory._NOT_LOOKED_UP
+                native_memory._looked_up = False
                 with mock.patch.object(native_memory.ctypes, "CDLL") as cdll:
                     self.assertFalse(native_memory.release_free_memory())
                 cdll.assert_not_called()
@@ -32,12 +30,8 @@ class ReleaseFreeMemoryTests(unittest.TestCase):
     def test_musl_does_nothing(self):
         with (
             mock.patch.object(sys, "platform", "linux"),
-            # Windows has no os.confstr: this test fakes Linux there too.
             mock.patch.object(
-                native_memory.os,
-                "confstr",
-                side_effect=ValueError("unknown name"),
-                create=True,
+                native_memory.os, "confstr", side_effect=ValueError("unknown name")
             ),
             mock.patch.object(native_memory.ctypes, "CDLL") as cdll,
         ):

tests/test_preview_probe.py

@@ -1,143 +0,0 @@
-"""The thumbnail folder check answers for the folder as it is now (#320).
-
-A check that started before the caller asked can miss what just happened: #592
-hit it in the merge queue, where a folder deleted right after
-``configure`` woke the probe stayed "available" until the next probe.
-"""
-
-import sys
-import threading
-import unittest
-from pathlib import Path
-from unittest.mock import patch
-
-sys.path.insert(0, str(Path(__file__).resolve().parents[1]))
-
-from py.api import preview_location, preview_store  # noqa: E402
-
-WAIT = 5
-HERE = (True, None, {"id": "x"})
-GONE = (False, "missing", None)
-KEY = ("/thumbs", "x")
-
-
-class TestProbeCheck(unittest.TestCase):
-    def setUp(self):
-        self.probe = preview_store._Probe()
-
-    def test_a_finished_check_nobody_collected_is_not_the_answer(self):
-        with patch.object(preview_location, "folder_state", return_value=HERE):
-            with self.probe._lock:
-                _key, done, _result = self.probe._start_check(*KEY)
-            self.assertTrue(done.wait(WAIT))
-        with patch.object(preview_location, "folder_state", return_value=GONE):
-            self.assertEqual(self.probe.check(*KEY), GONE)
-
-    def test_a_check_already_running_is_followed_by_a_new_one(self):
-        started = threading.Event()
-        release = threading.Event()
-        calls = []
-
-        def state(_path, _expected_id):
-            calls.append(threading.current_thread().name)
-            if len(calls) == 1:
-                started.set()
-                self.assertTrue(release.wait(WAIT))
-                return HERE
-            return GONE
-
-        answers = []
-        with patch.object(preview_location, "folder_state", state):
-            with self.probe._lock:
-                self.probe._start_check(*KEY)
-            self.assertTrue(started.wait(WAIT))
-            caller = threading.Thread(
-                target=lambda: answers.append(self.probe.check(*KEY))
-            )
-            caller.start()
-            release.set()
-            caller.join(WAIT)
-        self.assertFalse(caller.is_alive())
-        self.assertEqual(answers, [GONE])
-        self.assertEqual(len(calls), 2)  # one after the other, never two at once
-
-    def test_a_stuck_check_is_never_doubled(self):
-        release = threading.Event()
-        self.addCleanup(release.set)
-        calls = []
-
-        def state(_path, _expected_id):
-            calls.append(1)
-            release.wait(WAIT)
-            return HERE
-
-        with (
-            patch.object(preview_location, "folder_state", state),
-            patch.object(preview_store, "IO_BUDGET", 0.05),
-        ):
-            with self.probe._lock:
-                self.probe._start_check(*KEY)
-            with self.assertRaises(TimeoutError):
-                self.probe.check(*KEY)
-        self.assertEqual(len(calls), 1)
-
-    def test_an_error_from_the_new_check_reaches_the_caller(self):
-        with patch.object(
-            preview_location, "folder_state", side_effect=OSError("share gone")
-        ):
-            with self.assertRaises(OSError):
-                self.probe.check(*KEY)
-
-
-class TestRefreshOrder(unittest.TestCase):
-    """Only the newest check's answer is published (#611)."""
-
-    def test_an_older_check_never_overwrites_a_newer_answer(self):
-        parsed = preview_location.ParsedLocation(
-            mode=preview_store.FOLDER_MODE, path="/thumbs", id="x"
-        )
-        self.addCleanup(setattr, preview_store, "_available", preview_store._available)
-        self.addCleanup(setattr, preview_store, "_problem", preview_store._problem)
-        started = threading.Event()
-        release = threading.Event()
-        newer_published = threading.Event()
-        calls = []
-        publish = preview_store._set_state
-
-        def state(_path, _expected_id):
-            calls.append(1)
-            if len(calls) == 1:
-                started.set()
-                self.assertTrue(release.wait(WAIT))
-                return HERE
-            return GONE
-
-        def set_state(*args, **kwargs):
-            if args[1]:  # the older check's "available" arrives last
-                self.assertTrue(newer_published.wait(WAIT))
-            publish(*args, **kwargs)
-
-        def newer():
-            preview_store.refresh()
-            newer_published.set()
-
-        with (
-            patch.object(preview_store, "_parsed", parsed),
-            patch.object(preview_location, "folder_state", state),
-            patch.object(preview_store, "_set_state", set_state),
-        ):
-            first = threading.Thread(target=preview_store.refresh)
-            first.start()
-            self.assertTrue(started.wait(WAIT))
-            second = threading.Thread(target=newer)
-            second.start()
-            release.set()
-            second.join(WAIT)
-            first.join(WAIT)
-            self.assertFalse(first.is_alive() or second.is_alive())
-            self.assertFalse(preview_store._available)
-            self.assertEqual(preview_store._problem, "missing")
-
-
-if __name__ == "__main__":
-    unittest.main()

tests/test_preview_store.py

@@ -1,457 +0,0 @@
-"""One resolver for where previews live on disk (#320 PR 1).
-
-``py/api/preview_store.py`` owns every mapping between an image source, a
-media file and its preview on disk. In source mode (the only mode so far)
-it returns exactly the paths the code built by hand before
-(``<source>/thumbnails/<rel>_thumb<ext>``), so nothing changes on disk. The
-structural test keeps new ``thumbnails`` path joins out of the rest of the
-backend.
-"""
-
-import asyncio
-import os
-import re
-import sys
-import tempfile
-import threading
-import unittest
-from pathlib import Path
-import unittest.mock
-from unittest.mock import MagicMock
-
-sys.path.insert(0, os.path.dirname(os.path.dirname(os.path.abspath(__file__))))
-
-sys.modules.setdefault("server", MagicMock())
-
-from py.api import preview_store, thumbnail_settings  # noqa: E402
-from py.api.thumbnail_encode import (  # noqa: E402
-    PreviewWriteHeld,
-    replace_unless_held,
-)
-
-REPO = Path(__file__).resolve().parent.parent
-WAIT = 10
-
-
-class SourceModeCase(unittest.TestCase):
-    def setUp(self):
-        self._tmp = tempfile.TemporaryDirectory()
-        self.addCleanup(self._tmp.cleanup)
-        self.root = Path(self._tmp.name) / "output"
-        self.root.mkdir()
-
-
-class TestSourceModePaths(SourceModeCase):
-    def test_default_location_is_inside_each_source(self):
-        location = preview_store.current()
-        self.assertEqual(location.mode, preview_store.SOURCE_MODE)
-        self.assertTrue(location.available)
-        self.assertIsNone(location.problem)
-
-    def test_store_of_a_source_is_its_thumbnails_folder(self):
-        self.assertEqual(preview_store.store_dir(self.root), self.root / "thumbnails")
-
-    def test_preview_path_matches_the_old_join(self):
-        rel = Path("sub", "deep", "a.png")
-        self.assertEqual(
-            preview_store.preview_path(self.root, rel, ".webp"),
-            self.root / "thumbnails/sub/deep/a_thumb.webp",
-        )
-        self.assertEqual(
-            preview_store.preview_path(self.root, "a.mp4", ".jpg"),
-            self.root / "thumbnails" / "a_thumb.jpg",
-        )
-
-    def test_preview_path_defaults_to_the_written_extension(self):
-        from py.api.thumbnail_encode import writer_settings
-
-        self.assertEqual(
-            preview_store.preview_path(self.root, "a.png").suffix,
-            writer_settings().extension,
-        )
-
-    def test_request_path_maps_url_parts_to_the_old_join(self):
-        parts = ("thumbnails", "sub", "a_thumb.webp")
-        self.assertEqual(
-            preview_store.request_path(self.root, parts), self.root.joinpath(*parts)
-        )
-
-    def test_request_path_is_none_for_anything_but_preview_parts(self):
-        self.assertIsNone(preview_store.request_path(self.root, ("sub", "a.png")))
-        self.assertIsNone(preview_store.request_path(self.root, ("Thumbnails", "a")))
-        self.assertIsNone(preview_store.request_path(self.root, ("thumbnails",)))
-
-    def test_ensure_store_is_the_store(self):
-        self.assertEqual(
-            preview_store.ensure_store(self.root), self.root / "thumbnails"
-        )
-
-    def test_owns_a_preview_inside_the_store(self):
-        inside = self.root / "thumbnails" / "sub" / "a_thumb.webp"
-        self.assertTrue(preview_store.owns(self.root, inside))
-        self.assertFalse(preview_store.owns(self.root, self.root / "a.png"))
-        self.assertFalse(
-            preview_store.owns(self.root, self.root.parent / "elsewhere.webp")
-        )
-
-    @unittest.skipUnless(hasattr(os, "symlink"), "needs symlinks")
-    def test_owns_refuses_a_store_linked_out_of_the_source(self):
-        outside = Path(self._tmp.name) / "outside"
-        outside.mkdir()
-        try:
-            (self.root / "thumbnails").symlink_to(outside, target_is_directory=True)
-        except OSError:
-            self.skipTest("symlinks not permitted")
-        self.assertFalse(
-            preview_store.owns(self.root, self.root / "thumbnails" / "a_thumb.webp")
-        )
-
-    @unittest.skipUnless(hasattr(os, "symlink"), "needs symlinks")
-    def test_owns_refuses_a_preview_folder_linked_out_of_the_store(self):
-        outside = Path(self._tmp.name) / "outside"
-        outside.mkdir()
-        (self.root / "thumbnails").mkdir()
-        try:
-            (self.root / "thumbnails" / "sub").symlink_to(
-                outside, target_is_directory=True
-            )
-        except OSError:
-            self.skipTest("symlinks not permitted")
-        self.assertFalse(
-            preview_store.owns(
-                self.root, self.root / "thumbnails" / "sub" / "a_thumb.webp"
-            )
-        )
-
-    def test_store_container_is_the_source(self):
-        self.assertEqual(preview_store.store_container(self.root), self.root)
-
-    def test_given_store_argument_is_kept_unless_it_is_the_default(self):
-        default = self.root / "thumbnails"
-        other = Path(self._tmp.name) / "custom"
-        self.assertEqual(preview_store.given_store(self.root, default), default)
-        self.assertEqual(preview_store.given_store(self.root, other), other)
-
-
-class TestPreviewText(unittest.TestCase):
-    def test_preview_text_is_an_exact_thumbnails_prefix_and_preview_name(self):
-        for text in (
-            "thumbnails/a_thumb.webp",
-            "thumbnails/sub/a_thumb.jxl",
-            "thumbnails/a_thumb.JPG",
-            "thumbnails/a_thumb.Png",
-        ):
-            with self.subTest(text=text):
-                self.assertTrue(preview_store.is_preview_text(text))
-
-    def test_other_text_is_not_preview_text(self):
-        for text in (
-            "Thumbnails/a_thumb.webp",
-            "thumbnails/a.png",
-            "thumbnails/_thumb.webp",
-            "thumbnails/a_thumb.txt",
-            "sub/thumbnails/a_thumb.webp",
-            "thumbnails/../a_thumb.webp",
-            "thumbnails//a_thumb.webp",
-            "thumbnails/./a_thumb.webp",
-            "thumbnails\\a_thumb.webp",
-            "thumbnails/c:a_thumb.webp",
-            "thumbnails/sub/thumbnails/a_thumb.webp",
-            "thumbnails",
-            "",
-        ):
-            with self.subTest(text=text):
-                self.assertFalse(preview_store.is_preview_text(text))
-
-
-class TestWritesAndTheSwitch(SourceModeCase):
-    def _temp_and_dst(self):
-        folder = self.root / "thumbnails"
-        folder.mkdir()
-        tmp = folder / ".a_thumb.part-1-1.webp"
-        tmp.write_bytes(b"new")
-        return tmp, folder / "a_thumb.webp"
-
-    def test_a_write_from_the_current_generation_lands(self):
-        tmp, dst = self._temp_and_dst()
-        replace_unless_held(tmp, dst, preview_store.write_guard())
-        self.assertEqual(dst.read_bytes(), b"new")
-
-    def test_a_write_whose_generation_changed_is_dropped(self):
-        tmp, dst = self._temp_and_dst()
-        guard = preview_store.write_guard()
-        preview_store.bump_generation()
-        with self.assertRaises(PreviewWriteHeld):
-            replace_unless_held(tmp, dst, guard)
-        self.assertFalse(dst.exists())
-
-    def test_the_hold_check_still_applies(self):
-        tmp, dst = self._temp_and_dst()
-        with self.assertRaises(PreviewWriteHeld):
-            replace_unless_held(tmp, dst, preview_store.write_guard(lambda: False))
-        self.assertFalse(dst.exists())
-
-    def test_the_check_and_the_rename_run_under_the_write_lock(self):
-        """The hold check and the rename hold ``write_lock``, the lock the
-        generation bump takes: a switch cannot fall between them."""
-        tmp, dst = self._temp_and_dst()
-        in_check = threading.Event()
-        release = threading.Event()
-        seen = {}
-
-        def slow_hold():
-            seen["locked"] = preview_store.write_lock.locked()
-            in_check.set()
-            release.wait(WAIT)
-            return True
-
-        guard = preview_store.write_guard(slow_hold)
-        writer = threading.Thread(target=replace_unless_held, args=(tmp, dst, guard))
-        writer.start()
-        try:
-            self.assertTrue(in_check.wait(WAIT))
-            self.assertTrue(seen["locked"])
-            self.assertTrue(preview_store.write_lock.locked())
-        finally:
-            release.set()
-            writer.join(WAIT)
-        self.assertFalse(preview_store.write_lock.locked())
-        self.assertEqual(dst.read_bytes(), b"new")
-        bumped = preview_store.bump_generation()
-        self.assertEqual(preview_store.generation(), bumped)
-
-
-class TestOnlyTheResolverBuildsStorePaths(unittest.TestCase):
-    """No backend module joins ``thumbnails`` onto a path by hand any more."""
-
-    ALLOWED = {
-        Path("py/api/preview_store.py"),
-        Path("py/api/thumbnail_settings.py"),  # URL text
-    }
-    # A path join with a literal "thumbnails" operand.
-    JOIN = re.compile(
-        r"""/\s*["']thumbnails["']"""
-        r"""|["']thumbnails["']\s*/"""
-        r"""|joinpath\([^)]*["']thumbnails["']"""
-        r"""|os\.path\.join\([^)]*["']thumbnails["']"""
-        r"""|["']thumbnails/"""
-        r"""|/\s*PREVIEW_FOLDER|joinpath\([^)]*PREVIEW_FOLDER"""
-        r"""|Path\([^)]*,\s*["']thumbnails["']"""
-    )
-
-    def test_no_thumbnails_join_outside_the_resolver(self):
-        offenders = []
-        files = sorted(REPO.glob("*.py"))
-        for folder in ("py", "utils", "database"):
-            files += sorted((REPO / folder).rglob("*.py"))
-        for path in files:
-            rel = path.relative_to(REPO)
-            if rel in self.ALLOWED:
-                continue
-            for number, line in enumerate(
-                path.read_text(encoding="utf-8").splitlines(), 1
-            ):
-                code = line.split("#", 1)[0]
-                if self.JOIN.search(code):
-                    offenders.append(f"{rel}:{number}: {line.strip()}")
-        self.assertEqual(offenders, [])
-
-
-class TestSettingsLookupsFollowTheStore(SourceModeCase):
-    def test_owned_thumbnails_reads_the_store(self):
-        folder = self.root / "thumbnails" / "sub"
-        folder.mkdir(parents=True)
-        (folder / "a_thumb.webp").write_bytes(b"x")
-        self.assertEqual(
-            thumbnail_settings.owned_thumbnails(self.root, Path("sub", "a.png")),
-            [folder / "a_thumb.webp"],
-        )
-
-
-try:
-    from tests.test_thumbnail_auto import AutoThumbnailCase, _entry
-    from tests.test_api_images import make_png
-except ImportError:  # discovered with tests/ as the top-level directory
-    from test_thumbnail_auto import AutoThumbnailCase, _entry
-    from test_api_images import make_png
-
-
-class RedirectedStoreCase(AutoThumbnailCase):
-    """Every caller follows the resolver: with the store of the output root
-    moved to ``<tmp>/elsewhere/output-key`` (a stand-in for a later mode),
-    previews are read, written, listed and removed there and only there."""
-
-    async def asyncSetUp(self):
-        await super().asyncSetUp()
-        self.container = self.comfy_dir / "elsewhere"
-        self.store = self.container / "output-key"
-        self.store.mkdir(parents=True)
-        self.old_store = self.output_dir / "thumbnails"
-        root = self.output_dir
-        real_store = preview_store.store_dir
-        real_container = preview_store.store_container
-
-        def store_dir(r, location=None):
-            return self.store if Path(r) == root else real_store(r, location)
-
-        def store_container(r, location=None):
-            if Path(r) == root:
-                return self.container
-            return real_container(r, location)
-
-        for name, fake in (
-            ("store_dir", store_dir),
-            ("store_container", store_container),
-        ):
-            patcher = unittest.mock.patch.object(preview_store, name, fake)
-            patcher.start()
-            self.addCleanup(patcher.stop)
-
-    def _preview(self, rel, ext=".webp"):
-        return self.store / (thumbnail_settings.preview_stem(rel) + ext)
-
-
-class TestEveryCallerFollowsTheStore(RedirectedStoreCase):
-    async def test_an_existing_preview_is_served_from_the_store(self):
-        make_png(self.output_dir / "sub" / "a.png", size=(64, 64))
-        preview = self._preview("sub/a.png")
-        make_png(preview, size=(32, 32))
-        url = _entry(self.api, self.output_dir, "sub/a.png")["thumbnail_url"]
-        self.assertIn("v=", url)  # the listing found it in the store
-        resp = await self.client.get(url)
-        self.assertEqual(resp.status, 200)
-        self.assertEqual(await resp.read(), preview.read_bytes())
-
-    async def test_a_legacy_upper_case_preview_is_served_from_the_store(self):
-        make_png(self.output_dir / "k.JPG", size=(64, 64))
-        legacy = self.store / "k_thumb.JPG"
-        legacy.write_bytes(b"legacy preview")
-        resp = await self.client.get(
-            "/prompt_manager/images/serve/thumbnails/k_thumb.JPG?root=0"
-        )
-        self.assertEqual(resp.status, 200)
-        self.assertEqual(await resp.read(), b"legacy preview")
-
-    async def test_a_missing_preview_is_made_in_the_store_on_first_view(self):
-        make_png(self.output_dir / "sub" / "b.png", size=(640, 480))
-        url = _entry(self.api, self.output_dir, "sub/b.png")["thumbnail_url"]
-        resp = await self.client.get(url)
-        self.assertEqual(resp.status, 200)
-        self.assertTrue(self._preview("sub/b.png").is_file())
-        self.assertFalse(self.old_store.exists())
-
-    async def test_a_leftover_in_the_source_folder_is_not_served(self):
-        make_png(self.output_dir / "c.png", size=(640, 480))
-        leftover = self.old_store / "c_thumb.webp"
-        leftover.parent.mkdir()
-        leftover.write_bytes(b"old preview bytes")
-        resp = await self.client.get(
-            "/prompt_manager/images/serve/thumbnails/c_thumb.webp?root=0"
-        )
-        self.assertEqual(resp.status, 200)
-        self.assertNotEqual(await resp.read(), b"old preview bytes")
-        self.assertTrue(self._preview("c.png").is_file())
-
-    async def test_capture_writes_into_the_store(self):
-        path = make_png(self.output_dir / "run" / "d.png", size=(64, 64))
-        self.assertEqual(self.api.queue_capture_thumbnail(str(path)), "queued")
-        await self._idle()
-        self.assertTrue(self._preview("run/d.png").is_file())
-        self.assertFalse(self.old_store.exists())
-
-    async def test_generate_and_clear_follow_the_store(self):
-        make_png(self.output_dir / "e.png", size=(64, 64))
-        payload = await asyncio.get_running_loop().run_in_executor(
-            None, self.api._generate_gallery_thumbnails_sync, [self.output_dir]
-        )
-        self.assertTrue(payload["success"])
-        self.assertTrue(self._preview("e.png").is_file())
-        self.assertFalse(self.old_store.exists())
-        self.assertTrue(payload["thumbnails_path"].endswith("output-key"))
-        cleared, _size = self.api._clear_gallery_thumbnails_sync([self.output_dir])
-        self.assertEqual(cleared, 1)
-        self.assertFalse(self._preview("e.png").exists())
-        self.assertTrue(self.store.is_dir())  # the store itself stays
-
-    async def test_removing_a_file_removes_its_preview_in_the_store(self):
-        from py.api.admin import _remove_thumbnail
-
-        make_png(self.output_dir / "f.png", size=(64, 64))
-        preview = self._preview("f.png")
-        preview.write_bytes(b"x")
-        self.assertTrue(_remove_thumbnail(self.output_dir, Path("f.png")))
-        self.assertFalse(preview.exists())
-
-    async def test_the_temp_sweep_walks_the_store(self):
-        stray = self.store / ".g_thumb.part-1-1.webp"
-        stray.write_bytes(b"x")
-        old = os.path.getmtime(stray) - 10 * 24 * 3600
-        os.utime(stray, (old, old))
-        self.assertEqual(self.api.sweep_thumbnail_temps(), 1)
-        self.assertFalse(stray.exists())
-
-    async def test_history_cover_writes_into_the_store(self):
-        from py.api import history_current
-
-        self.assertTrue(
-            history_current._preview_writable(self.output_dir, self._preview("h.png"))
-        )
-        self.assertFalse(
-            history_current._preview_writable(
-                self.output_dir, self.old_store / "h_thumb.webp"
-            )
-        )
-
-
-class TestCaptureResolvesAtWriteTime(RedirectedStoreCase):
-    def test_a_queued_capture_follows_a_store_that_moved_before_its_write(self):
-        from py.api import thumbnail_auto as auto
-
-        written = []
-        thumbnailer = auto.AutoThumbnailer(
-            lambda src, dst, *a, **k: written.append(dst) or {"action": "generated"},
-            lambda: True,
-            self.api.logger,
-            start_worker=False,
-        )
-        self.addCleanup(thumbnailer.close)
-        src = make_png(self.output_dir / "i.png", size=(32, 32))
-        deferred = auto.DeferredPreview(self.output_dir, Path("i.png"))
-        self.assertTrue(thumbnailer.enqueue(src, deferred, False))
-        moved = self.container / "moved"
-        moved.mkdir()
-        self.store = moved  # the location changes before the worker runs
-        thumbnailer._write_queued(thumbnailer._queue.popleft())
-        self.assertEqual(written, [moved / "i_thumb.webp"])
-
-    def test_the_after_scan_queue_maps_each_target_to_its_own_root(self):
-        from py.api import thumbnail_auto as auto
-
-        nested = self.output_dir / "inner"
-        nested.mkdir()
-        src = nested / "j.png"
-        outer = auto._deferred(
-            [self.output_dir, nested], src, self._preview("inner/j.png")
-        )
-        inner = auto._deferred(
-            [self.output_dir, nested], src, nested / "thumbnails" / "j_thumb.webp"
-        )
-        self.assertEqual(
-            (outer.root, outer.rel), (self.output_dir, Path("inner/j.png"))
-        )
-        self.assertEqual((inner.root, inner.rel), (nested, Path("j.png")))
-        stray = self.comfy_dir / "x_thumb.webp"
-        self.assertEqual(auto._deferred([self.output_dir], src, stray), stray)
-
-    def test_serve_and_history_share_one_flight_key(self):
-        from py.api import thumbnail_auto as auto
-
-        parts = ("thumbnails", "sub", "a_thumb.webp")
-        self.assertEqual(
-            auto._request_key(self.output_dir, parts),
-            auto._dst_key(self._preview("sub/a.png")),
-        )
-
-
-if __name__ == "__main__":
-    unittest.main()

tests/test_preview_store_folder.py

@@ -1,607 +0,0 @@
-"""One folder mode (#320 PR 2): previews in ``<folder>/<source key>``.
-
-Folder mode is reachable from config.json and tests only (D4B). These tests
-set it on the resolver directly (``preview_store.configure``) and drive
-every route that reads, writes, lists or removes previews: they must touch
-only ``<folder>/<key>``, never ``<source>/thumbnails``, never through a link,
-and nothing at all while the folder is unavailable. Waits are events; no
-sleeps.
-"""
-
-import asyncio
-import json
-import os
-import sys
-import threading
-import unittest
-from pathlib import Path
-from unittest.mock import patch
-
-sys.path.insert(0, os.path.dirname(os.path.dirname(os.path.abspath(__file__))))
-
-try:
-    from tests.test_thumbnail_auto import AutoThumbnailCase, _entry, WAIT
-    from tests.test_api_images import make_png
-except ImportError:  # discovered with tests/ as the top-level directory
-    from test_thumbnail_auto import AutoThumbnailCase, _entry, WAIT
-    from test_api_images import make_png
-
-from py.api import preview_location, preview_store, thumbnail_settings  # noqa: E402
-
-SERVE = "/prompt_manager/images/serve/"
-
-
-class FolderModeCase(AutoThumbnailCase):
-    """The output root's previews live in ``<comfy>/thumbs/<key>``."""
-
-    async def asyncSetUp(self):
-        await super().asyncSetUp()
-        self.folder = self.use_folder(self.comfy_dir / "thumbs")
-        self.old_store = self.output_dir / "thumbnails"
-
-    def use_folder(self, folder, install="install-a"):
-        folder.mkdir(exist_ok=True)
-        marker_id = preview_location.init_folder(str(folder), created_by_pm=True)
-        self.addCleanup(preview_store.configure, None)
-        preview_store.configure(
-            {"mode": "folder", "path": str(folder), "id": marker_id, "install": install}
-        )
-        self.assertTrue(preview_store.current().available)
-        return folder
-
-    def key_folder(self):
-        store = preview_store.ensure_store(self.output_dir, create=True)
-        self.assertIsNotNone(store)
-        return store
-
-    def preview(self, rel, ext=".webp"):
-        return self.key_folder() / (thumbnail_settings.preview_stem(rel) + ext)
-
-    def marker(self):
-        return json.loads(
-            (self.folder / preview_location.MARKER_NAME).read_text(encoding="utf-8")
-        )
-
-
-class TestFolderModeRoutes(FolderModeCase):
-    async def test_the_key_is_a_readable_name_plus_a_hash_in_the_marker(self):
-        key = self.key_folder().name
-        self.assertRegex(key, r"^output-[0-9a-f]{8}$")
-        entry = self.marker()["keys"][key]
-        self.assertEqual(entry["path"], str(self.output_dir))
-        self.assertEqual(entry["install"], "install-a")
-
-    async def test_another_case_of_the_source_finds_the_same_key(self):
-        key = self.key_folder()
-        other = Path(str(self.output_dir).swapcase())
-        if not other.is_dir():
-            self.skipTest("a case-sensitive volume")
-        self.assertEqual(preview_store.store_dir(other), key)
-
-    @unittest.skipUnless(hasattr(os, "symlink"), "needs symlinks")
-    async def test_a_linked_spelling_of_the_source_finds_the_same_key(self):
-        key = self.key_folder()
-        link = self.comfy_dir / "output-link"
-        try:
-            link.symlink_to(self.output_dir, target_is_directory=True)
-        except OSError:
-            self.skipTest("symlinks not permitted")
-        self.assertEqual(preview_store.store_dir(link), key)
-
-    async def test_an_existing_preview_is_listed_and_served_from_the_key_folder(self):
-        make_png(self.output_dir / "sub" / "a.png", size=(64, 64))
-        preview = self.preview("sub/a.png")
-        make_png(preview, size=(32, 32))
-        url = _entry(self.api, self.output_dir, "sub/a.png")["thumbnail_url"]
-        self.assertIn("v=", url)
-        self.assertTrue(url.startswith(SERVE + "thumbnails/sub/a_thumb.webp"))
-        resp = await self.client.get(url)
-        self.assertEqual(resp.status, 200)
-        self.assertEqual(await resp.read(), preview.read_bytes())
-
-    async def test_a_missing_preview_is_made_in_the_key_folder(self):
-        make_png(self.output_dir / "b.png", size=(640, 480))
-        url = _entry(self.api, self.output_dir, "b.png")["thumbnail_url"]
-        resp = await self.client.get(url)
-        self.assertEqual(resp.status, 200)
-        self.assertTrue(self.preview("b.png").is_file())
-        self.assertFalse(self.old_store.exists())
-
-    async def test_a_leftover_in_the_source_folder_is_never_served(self):
-        make_png(self.output_dir / "c.png", size=(640, 480))
-        self.old_store.mkdir()
-        (self.old_store / "c_thumb.webp").write_bytes(b"leftover")
-        resp = await self.client.get(SERVE + "thumbnails/c_thumb.webp?root=0")
-        self.assertEqual(resp.status, 200)
-        self.assertNotEqual(await resp.read(), b"leftover")
-
-    async def test_other_text_under_thumbnails_is_refused(self):
-        self.old_store.mkdir()
-        make_png(self.old_store / "notes.png", size=(8, 8))
-        resp = await self.client.get(SERVE + "thumbnails/notes.png?root=0")
-        self.assertEqual(resp.status, 403)
-
-    async def test_traversal_through_thumbnails_is_refused(self):
-        for text in (
-            "thumbnails/../../thumbs/x_thumb.webp",
-            "thumbnails/..%2F..%2Fx_thumb.webp",
-            "thumbnails/%2e%2e/x_thumb.webp",
-        ):
-            with self.subTest(text=text):
-                resp = await self.client.get(SERVE + text + "?root=0")
-                self.assertIn(resp.status, (403, 404))
-
-    @unittest.skipUnless(hasattr(os, "symlink"), "needs symlinks")
-    async def test_a_link_out_of_the_key_folder_is_never_served_or_written(self):
-        outside = self.comfy_dir / "outside"
-        outside.mkdir()
-        make_png(outside / "d_thumb.webp", size=(8, 8))
-        make_png(self.output_dir / "sub" / "d.png", size=(64, 64))
-        try:
-            (self.key_folder() / "sub").symlink_to(outside, target_is_directory=True)
-        except OSError:
-            self.skipTest("symlinks not permitted")
-        resp = await self.client.get(SERVE + "thumbnails/sub/d_thumb.webp?root=0")
-        self.assertEqual(resp.status, 403)
-        self.assertFalse(preview_store.owns(self.output_dir, outside / "d_thumb.webp"))
-        self.assertFalse(
-            preview_store.owns(self.output_dir, self.key_folder() / "sub" / "x.webp")
-        )
-
-    @unittest.skipUnless(os.name == "nt", "junctions are Windows only")
-    async def test_a_junction_inside_a_store_is_refused(self):
-        import _winapi
-
-        outside = self.comfy_dir / "outside"
-        outside.mkdir()
-        (outside / "e_thumb.webp").write_bytes(b"x")
-        _winapi.CreateJunction(str(outside), str(self.key_folder() / "sub"))
-        self.assertTrue(preview_location.is_link_like(self.key_folder() / "sub"))
-        resp = await self.client.get(SERVE + "thumbnails/sub/e_thumb.webp?root=0")
-        self.assertEqual(resp.status, 403)
-
-    async def test_capture_writes_into_the_key_folder(self):
-        path = make_png(self.output_dir / "run" / "f.png", size=(64, 64))
-        self.assertEqual(self.api.queue_capture_thumbnail(str(path)), "queued")
-        await self._idle()
-        self.assertTrue(self.preview("run/f.png").is_file())
-        self.assertFalse(self.old_store.exists())
-
-    async def test_clear_removes_previews_only(self):
-        make_png(self.output_dir / "g.png", size=(64, 64))
-        payload = await asyncio.get_running_loop().run_in_executor(
-            None, self.api._generate_gallery_thumbnails_sync, [self.output_dir]
-        )
-        self.assertTrue(payload["success"])
-        keep = self.key_folder() / "readme.txt"
-        keep.write_text("not a preview", encoding="utf-8")
-        resp = await self.client.post("/prompt_manager/images/clear-thumbnails")
-        self.assertEqual(resp.status, 200)
-        self.assertFalse(self.preview("g.png").exists())
-        self.assertTrue(keep.exists())
-        self.assertTrue((self.folder / preview_location.MARKER_NAME).is_file())
-        self.assertTrue(self.output_dir.joinpath("g.png").is_file())
-
-    async def test_removing_a_file_removes_its_preview_in_the_key_folder(self):
-        from py.api.admin import _remove_thumbnail
-
-        make_png(self.output_dir / "h.png", size=(64, 64))
-        preview = self.preview("h.png")
-        preview.write_bytes(b"x")
-        self.assertTrue(_remove_thumbnail(self.output_dir, Path("h.png")))
-        self.assertFalse(preview.exists())
-
-    async def test_history_cover_is_authorized_by_the_store(self):
-        from py.api import history_current
-
-        preview = self.preview("i.png")
-        preview.write_bytes(b"x")
-        target = history_current._canonical(preview)
-        self.assertTrue(
-            history_current._target_authorized(
-                target, self.output_dir, None, self.output_dir
-            )
-        )
-        stray = self.comfy_dir / "stray_thumb.webp"
-        stray.write_bytes(b"x")
-        self.assertFalse(
-            history_current._target_authorized(
-                history_current._canonical(stray),
-                self.output_dir,
-                None,
-                self.output_dir,
-            )
-        )
-
-    async def test_the_thumbnail_folder_is_never_recreated_by_a_write(self):
-        make_png(self.output_dir / "j.png", size=(64, 64))
-        self.key_folder()
-        for child in sorted(self.folder.rglob("*"), reverse=True):
-            child.rmdir() if child.is_dir() else child.unlink()
-        self.folder.rmdir()
-        with self.assertRaises(FileNotFoundError):
-            preview_store.make_parent(self.folder / "output-x" / "sub" / "a.webp")
-        self.assertFalse(self.folder.exists())
-
-
-class TestUnavailableFolder(FolderModeCase):
-    def go_missing(self):
-        (self.folder / preview_location.MARKER_NAME).unlink()
-        self.assertFalse(preview_store.refresh())
-        location = preview_store.current()
-        self.assertEqual((location.available, location.problem), (False, "missing"))
-
-    async def test_a_folder_without_its_marker_is_missing_and_writes_nothing(self):
-        make_png(self.output_dir / "k.png", size=(640, 480))
-        self.go_missing()
-        entry = _entry(self.api, self.output_dir, "k.png")
-        self.assertFalse(entry.get("thumbnail_ready", False))
-        resp = await self.client.get(SERVE + "thumbnails/k_thumb.webp?root=0")
-        self.assertEqual(resp.status, 200)
-        self.assertEqual(resp.headers["Cache-Control"], "no-store")
-        self.assertEqual(
-            await resp.read(), (self.output_dir / "k.png").read_bytes()
-        )  # the original
-        self.assertEqual(
-            sorted(p.name for p in self.folder.rglob("*") if p.is_file()), []
-        )
-        self.assertFalse(self.old_store.exists())
-
-    async def test_thumbnail_work_is_refused_while_unavailable(self):
-        self.go_missing()
-        for method, url, body in (
-            ("POST", "/prompt_manager/images/generate-thumbnails", {}),
-            ("POST", "/prompt_manager/images/generate-thumbnails/progress", None),
-            ("POST", "/prompt_manager/images/clear-thumbnails", None),
-            ("POST", "/prompt_manager/jobs/thumbnails", {"mode": "missing"}),
-        ):
-            with self.subTest(url=url):
-                resp = await self.client.request(method, url, json=body)
-                self.assertEqual(resp.status, 409)
-                self.assertEqual((await resp.json())["code"], "location-unavailable")
-
-    async def test_status_reports_the_location_without_a_path(self):
-        self.go_missing()
-        resp = await self.client.get("/prompt_manager/images/thumbnails/status")
-        location = (await resp.json())["location"]
-        self.assertEqual(
-            location, {"mode": "folder", "available": False, "problem": "missing"}
-        )
-
-    async def test_another_folders_marker_is_a_mismatch(self):
-        marker = self.marker()
-        marker["id"] = "someone-else"
-        (self.folder / preview_location.MARKER_NAME).write_text(
-            json.dumps(marker), encoding="utf-8"
-        )
-        self.assertFalse(preview_store.refresh())
-        self.assertEqual(preview_store.current().problem, "marker-mismatch")
-
-    async def test_the_temp_sweep_skips_an_unavailable_folder(self):
-        stray = self.key_folder() / ".l_thumb.part-1-1.webp"
-        stray.write_bytes(b"x")
-        old = os.path.getmtime(stray) - 10 * 24 * 3600
-        os.utime(stray, (old, old))
-        self.go_missing()
-        self.assertEqual(self.api.sweep_thumbnail_temps(), 0)
-        self.assertTrue(stray.exists())
-
-    async def test_a_stalled_store_call_marks_it_unreachable_and_stops_io(self):
-        # Without the probe: woken by the stall, it finds this healthy folder again
-        # at once, and the lookup below would rightly do store I/O.
-        self.assertTrue(preview_store.stop_probe())
-        make_png(self.output_dir / "m.png", size=(64, 64))
-        self.preview("m.png").write_bytes(b"x")
-        ticks = iter([0.0, preview_store.IO_BUDGET + 1.0])
-        with patch.object(preview_store, "_clock", lambda: next(ticks, 99.0)):
-            _entry(self.api, self.output_dir, "m.png")  # one slow lookup
-        self.assertEqual(preview_store.current().problem, "unreachable")
-        calls = []
-        real = thumbnail_settings.owned_in_folder
-        with patch.object(
-            thumbnail_settings,
-            "owned_in_folder",
-            lambda *a, **k: calls.append(a) or real(*a, **k),
-        ):
-            entry = _entry(self.api, self.output_dir, "m.png")
-        self.assertEqual(calls, [])  # no store I/O while unreachable
-        self.assertNotIn("v=", entry["thumbnail_url"])
-        self.assertTrue(preview_store.refresh())  # the probe finds it again
-
-    async def test_a_check_that_blocks_is_unreachable_within_the_budget(self):
-        entered = threading.Event()
-        release = threading.Event()
-        self.addCleanup(release.set)
-
-        def blocking(path, expected_id):
-            entered.set()
-            release.wait(WAIT)
-            return True, None, None
-
-        with (
-            patch.object(preview_store, "IO_BUDGET", 0.2),
-            patch.object(preview_location, "folder_state", blocking),
-        ):
-            self.assertFalse(preview_store.refresh())
-        self.assertTrue(entered.is_set())
-        self.assertEqual(preview_store.current().problem, "unreachable")
-        release.set()
-
-    async def test_an_invalid_config_value_writes_nothing_anywhere(self):
-        preview_store.configure({"mode": "folder", "path": "relative/thumbs"})
-        location = preview_store.current()
-        self.assertEqual((location.available, location.problem), (False, "invalid"))
-        make_png(self.output_dir / "n.png", size=(640, 480))
-        resp = await self.client.get(SERVE + "thumbnails/n_thumb.webp?root=0")
-        self.assertEqual(resp.status, 200)
-        self.assertFalse(self.old_store.exists())
-
-
-class TestSharedFolders(FolderModeCase):
-    async def test_two_installs_keep_each_others_keys(self):
-        self.key_folder()
-        other_root = self.comfy_dir / "other"
-        other_root.mkdir()
-        setting = preview_store.setting()
-        preview_store.configure(
-            {
-                "mode": "folder",
-                "path": setting.path,
-                "id": setting.id,
-                "install": "install-b",
-            }
-        )
-        self.assertIsNotNone(preview_store.ensure_store(other_root))
-        keys = self.marker()["keys"]
-        installs = sorted(entry["install"] for entry in keys.values())
-        self.assertEqual(installs, ["install-a", "install-b"])
-
-    async def test_init_folder_adopts_an_existing_marker(self):
-        marker_id = self.marker()["id"]
-        self.assertEqual(preview_location.init_folder(str(self.folder)), marker_id)
-
-
-if __name__ == "__main__":
-    unittest.main()
-
-
-class TestHostileMarker(FolderModeCase):
-    """A hand-edited or foreign marker never takes a write or a delete out of
-    the thumbnail folder (shared and UNC folders can be edited by others)."""
-
-    def plant(self, keys):
-        marker = self.marker()
-        marker["keys"] = keys
-        (self.folder / preview_location.MARKER_NAME).write_text(
-            json.dumps(marker), encoding="utf-8"
-        )
-        self.assertTrue(preview_store.refresh())
-
-    def outside_files(self):
-        return sorted(
-            p.relative_to(self.comfy_dir).as_posix()
-            for p in self.comfy_dir.rglob("*")
-            if p.is_file()
-            and not p.is_relative_to(self.folder)
-            and not p.is_relative_to(self.output_dir)
-            and p.suffix in (".webp", ".jpg", ".png")
-        )
-
-    async def test_keys_that_are_not_one_folder_name_are_dropped(self):
-        entry = {"path": str(self.output_dir), "identity": "x", "install": "i"}
-        self.plant(
-            {
-                "../escape-0123abcd": entry,
-                str(self.comfy_dir / "abs-0123abcd"): entry,
-                "a/b-0123abcd": entry,
-                "a\\b-0123abcd": entry,
-                "Upper-0123abcd": entry,
-                "nohash": entry,
-                "fine-0123abcd": "not a dict",
-            }
-        )
-        self.assertEqual(preview_location.read_marker(str(self.folder))["keys"], {})
-        store = self.key_folder()
-        self.assertEqual(store.parent, self.folder)
-        make_png(self.output_dir / "p.png", size=(640, 480))
-        resp = await self.client.get(SERVE + "thumbnails/p_thumb.webp?root=0")
-        self.assertEqual(resp.status, 200)
-        self.assertTrue((store / "p_thumb.webp").is_file())
-        self.assertEqual(self.outside_files(), [])
-
-    @unittest.skipUnless(hasattr(os, "symlink"), "needs symlinks")
-    async def test_a_key_folder_that_is_a_link_is_never_written_or_cleared(self):
-        outside = self.comfy_dir / "outside"
-        outside.mkdir()
-        victim = outside / "q_thumb.webp"
-        victim.write_bytes(b"keep me")
-        store = self.key_folder()
-        store.rmdir()
-        try:
-            store.symlink_to(outside, target_is_directory=True)
-        except OSError:
-            self.skipTest("symlinks not permitted")
-        make_png(self.output_dir / "q.png", size=(640, 480))
-        from py.api.admin import _remove_thumbnail
-
-        self.assertFalse(_remove_thumbnail(self.output_dir, Path("q.png")))
-        resp = await self.client.post("/prompt_manager/images/clear-thumbnails")
-        self.assertIn(resp.status, (200, 400))
-        resp = await self.client.get(SERVE + "thumbnails/q_thumb.webp?root=0")
-        self.assertIn(resp.status, (200, 403))
-        self.assertEqual(victim.read_bytes(), b"keep me")
-        self.assertEqual(sorted(p.name for p in outside.iterdir()), ["q_thumb.webp"])
-
-    @unittest.skipUnless(hasattr(os, "symlink"), "needs symlinks")
-    async def test_a_linked_folder_below_a_key_is_never_deleted_through(self):
-        outside = self.comfy_dir / "outside"
-        outside.mkdir()
-        victim = outside / "r_thumb.webp"
-        victim.write_bytes(b"keep me")
-        try:
-            (self.key_folder() / "sub").symlink_to(outside, target_is_directory=True)
-        except OSError:
-            self.skipTest("symlinks not permitted")
-        make_png(self.output_dir / "sub" / "r.png", size=(64, 64))
-        from py.api.admin import _remove_thumbnail
-
-        self.assertFalse(_remove_thumbnail(self.output_dir, Path("sub/r.png")))
-        resp = await self.client.post("/prompt_manager/images/clear-thumbnails")
-        self.assertEqual(resp.status, 200)
-        self.assertEqual(victim.read_bytes(), b"keep me")
-
-    @unittest.skipUnless(os.name == "nt", "junctions are Windows only")
-    async def test_a_key_folder_that_is_a_junction_is_never_written_or_cleared(self):
-        import _winapi
-
-        outside = self.comfy_dir / "outside"
-        outside.mkdir()
-        victim = outside / "v_thumb.webp"
-        victim.write_bytes(b"keep me")
-        store = self.key_folder()
-        store.rmdir()
-        _winapi.CreateJunction(str(outside), str(store))
-        make_png(self.output_dir / "v.png", size=(640, 480))
-        from py.api.admin import _remove_thumbnail
-
-        self.assertFalse(_remove_thumbnail(self.output_dir, Path("v.png")))
-        resp = await self.client.post("/prompt_manager/images/clear-thumbnails")
-        self.assertIn(resp.status, (200, 400))
-        resp = await self.client.get(SERVE + "thumbnails/v_thumb.webp?root=0")
-        self.assertIn(resp.status, (200, 403))
-        self.assertEqual(victim.read_bytes(), b"keep me")
-        self.assertEqual(sorted(p.name for p in outside.iterdir()), ["v_thumb.webp"])
-
-    def link_key_folder_outside(self):
-        """The source's key folder replaced by a link to a folder outside."""
-        outside = self.comfy_dir / "outside"
-        outside.mkdir()
-        store = self.key_folder()
-        store.rmdir()
-        try:
-            store.symlink_to(outside, target_is_directory=True)
-        except OSError:
-            self.skipTest("symlinks not permitted")
-        return outside
-
-    @unittest.skipUnless(hasattr(os, "symlink"), "needs symlinks")
-    async def test_convert_never_plans_or_deletes_through_a_linked_key_folder(self):
-        outside = self.link_key_folder_outside()
-        old = outside / "c_thumb.png"
-        old.write_bytes(b"keep me")
-        make_png(self.output_dir / "c.png", size=(640, 480))
-        # A linked store is refused before any planning (bot review, P1).
-        self.assertIsNone(preview_store.ensure_store(self.output_dir))
-        plan = self.api._plan_gallery_thumbnails([self.output_dir], mode="convert")
-        self.assertEqual(plan["targets"], [])
-        # And every delete passes the ownership check at the moment it runs.
-        removed, kept = self.api._remove_old_previews([(old, 7)])
-        self.assertEqual((removed, kept), (0, [old]))
-        self.assertEqual(old.read_bytes(), b"keep me")
-
-    @unittest.skipUnless(hasattr(os, "symlink"), "needs symlinks")
-    async def test_the_temp_sweep_never_walks_into_a_link(self):
-        from py.api import thumbnail_encode
-
-        outside = self.comfy_dir / "outside"
-        outside.mkdir()
-        victim = outside / ".v_thumb.part-1-1.webp"
-        victim.write_bytes(b"keep me")
-        os.utime(victim, (1, 1))
-        try:
-            (self.key_folder() / "sub").symlink_to(outside, target_is_directory=True)
-        except OSError:
-            self.skipTest("symlinks not permitted")
-        real_walk = os.walk
-
-        def windows_walk(top, *args, **kwargs):
-            # Windows walks into a junction even with followlinks=False.
-            kwargs["followlinks"] = True
-            return real_walk(top, *args, **kwargs)
-
-        with patch.object(thumbnail_encode.os, "walk", windows_walk):
-            self.assertEqual(self.api.sweep_thumbnail_temps(), 0)
-            thumbnail_encode.sweep_stray_temps(self.key_folder(), min_age=0)
-            resp = await self.client.post("/prompt_manager/images/clear-thumbnails")
-        self.assertEqual(resp.status, 200)
-        self.assertEqual(victim.read_bytes(), b"keep me")
-
-    def test_the_temp_sweep_leaves_a_temp_the_store_does_not_own(self):
-        from py.api import thumbnail_encode
-
-        temp = self.key_folder() / ".w_thumb.part-1-1.webp"
-        temp.write_bytes(b"x")
-        with patch.object(preview_store, "may_write", return_value=False):
-            self.assertEqual(
-                thumbnail_encode.sweep_stray_temps(self.key_folder(), min_age=0), (0, 0)
-            )
-        self.assertTrue(temp.exists())
-
-    async def test_a_write_outside_the_folder_is_refused(self):
-        with self.assertRaises(OSError):
-            preview_store.make_parent(self.comfy_dir / "elsewhere" / "a_thumb.webp")
-        self.assertFalse((self.comfy_dir / "elsewhere").exists())
-
-    async def test_an_unmounted_folder_takes_no_write_before_the_next_check(self):
-        """An unmounted mount point is an empty folder: the flag may still
-        say available, but without the marker nothing is made there."""
-        store = self.key_folder()
-        store.rmdir()
-        (self.folder / preview_location.MARKER_NAME).unlink()
-        self.assertTrue(preview_store.current().available)  # not checked yet
-        with self.assertRaises(OSError):
-            preview_store.make_parent(store / "sub" / "s_thumb.webp")
-        self.assertEqual(list(self.folder.iterdir()), [])
-
-
-class TestStartupNeverFallsBackToTheSources(AutoThumbnailCase):
-    async def test_a_folder_setting_is_in_force_before_its_check(self):
-        self.addCleanup(preview_store.configure, None)
-        folder = self.comfy_dir / "thumbs"
-        value = {"mode": "folder", "path": str(folder), "id": "x"}
-        preview_store.configure(value, check=False)
-        location = preview_store.current()
-        self.assertEqual((location.mode, location.available), ("folder", False))
-        make_png(self.output_dir / "t.png", size=(640, 480))
-        resp = await self.client.get(SERVE + "thumbnails/t_thumb.webp?root=0")
-        self.assertEqual(resp.status, 200)
-        self.assertFalse((self.output_dir / "thumbnails").exists())
-
-    async def test_a_failed_startup_check_leaves_the_folder_invalid(self):
-        from py.config import PromptManagerConfig
-
-        self.addCleanup(preview_store.configure, None)
-        value = {"mode": "folder", "path": str(self.comfy_dir / "thumbs"), "id": "x"}
-        with (
-            patch.object(PromptManagerConfig, "THUMBNAIL_LOCATION", value),
-            patch.object(
-                type(self.api),
-                "_thumbnail_location_context",
-                side_effect=RuntimeError("boom"),
-            ),
-        ):
-            self.api.start_preview_location()
-        location = preview_store.current()
-        self.assertEqual(
-            (location.mode, location.available, location.problem),
-            ("folder", False, "invalid"),
-        )
-
-
-class TestNoStoreIoOnTheEventLoop(FolderModeCase):
-    async def test_legacy_listings_do_not_stat_the_folder(self):
-        make_png(self.output_dir / "u.png", size=(64, 64))
-        self.preview("u.png").write_bytes(b"x")
-        calls = []
-        real = thumbnail_settings.owned_in_folder
-        with patch.object(
-            thumbnail_settings,
-            "owned_in_folder",
-            lambda *a, **k: calls.append(threading.current_thread().name)
-            or real(*a, **k),
-        ):
-            images = self.api._enrich_images(
-                [{"image_path": str(self.output_dir / "u.png")}]
-            )
-        self.assertEqual(calls, [])
-        self.assertEqual(images[0]["thumbnail_url"], SERVE + "thumbnails/u_thumb.webp")

tests/test_saved_instructions.py

@@ -153,7 +153,7 @@ class ConfigTestCase(unittest.TestCase):
             path = os.path.join(tmpdir, "config.json")
             with open(path, "w", encoding="utf-8") as handle:
                 json.dump({"autotag": {"defaults": defaults}}, handle)
-            before = os.stat(path).st_mtime_ns, self.read_bytes(path)
+            before = os.stat(path).st_mtime_ns, open(path, "rb").read()
             if warnings:
                 with self.assertLogs("prompt_manager.config", level="WARNING") as logs:
                     PromptManagerConfig.load_from_file(path)
@@ -162,13 +162,9 @@ class ConfigTestCase(unittest.TestCase):
             else:
                 PromptManagerConfig.load_from_file(path)
             # Nothing is written at load.
-            self.assertEqual((os.stat(path).st_mtime_ns, self.read_bytes(path)), before)
-
-    @staticmethod
-    def read_bytes(path):
-        # Closed at once: Windows cannot delete the temp dir with it open.
-        with open(path, "rb") as handle:
-            return handle.read()
+            self.assertEqual(
+                (os.stat(path).st_mtime_ns, open(path, "rb").read()), before
+            )
 
     def state(self):
         return [dict(e) for e in AutotagConfig.INSTRUCTIONS], dict(

tests/test_thumbnail_move.py

@@ -1,542 +0,0 @@
-"""Move thumbnails (#320 PR 3): the reviewed job in every direction, its
-failure, cancel and restart paths, Recreate and the removed-sources scope.
-
-Each test runs against a temp config.json (``AdminAPITestCase``) and a temp
-journal; jobs are awaited through their task, never a timer.
-"""
-
-import json
-import os
-import re
-import sys
-import unittest
-from pathlib import Path
-from unittest.mock import patch
-
-sys.path.insert(0, os.path.dirname(os.path.dirname(os.path.abspath(__file__))))
-
-try:
-    from tests.test_api_admin import AdminAPITestCase
-    from tests.test_api_images import make_png
-except ImportError:  # discovered with tests/ as the top-level directory
-    from test_api_admin import AdminAPITestCase
-    from test_api_images import make_png
-
-from py.api import preview_location, preview_store  # noqa: E402
-from py.api import thumbnail_move_files as files  # noqa: E402
-from py.api import thumbnail_move_plan as move_plan  # noqa: E402
-from py.config import PromptManagerConfig  # noqa: E402
-
-REPO = Path(__file__).resolve().parent.parent
-PLAN = "/prompt_manager/images/thumbnails/plan"
-START = "/prompt_manager/jobs/thumbnails"
-
-
-class MoveCase(AdminAPITestCase):
-    async def asyncSetUp(self):
-        await super().asyncSetUp()
-        self.api._get_all_output_dirs = lambda: [self.output_dir]
-        self.api.recover_thumbnail_move()
-        self.journal = Path(self.tmpdir) / "data" / "thumbnail-move.json"
-        for target in (move_plan,):
-            patcher = patch.object(target, "journal_path", lambda: str(self.journal))
-            patcher.start()
-            self.addCleanup(patcher.stop)
-        default = patch(
-            "py.api.thumbnail_move_plan.default_path",
-            lambda: str(Path(self.tmpdir) / "default-thumbs"),
-        )
-        default.start()
-        self.addCleanup(default.stop)
-        self.addCleanup(preview_store.configure, None)
-        self.addCleanup(setattr, PromptManagerConfig, "THUMBNAIL_LOCATION", None)
-        self.old_store = self.output_dir / "thumbnails"
-        self.folder = Path(self.tmpdir) / "thumbs"
-        # Two media files with previews, an orphan, a temp and a note.
-        make_png(self.output_dir / "a.png", size=(8, 8))
-        make_png(self.output_dir / "sub" / "b.png", size=(8, 8))
-        make_png(self.old_store / "a_thumb.webp", size=(4, 4))
-        make_png(self.old_store / "sub" / "b_thumb.webp", size=(4, 4))
-        make_png(self.old_store / "gone_thumb.webp", size=(4, 4))
-        (self.old_store / ".a_thumb.part-1-1.webp").write_bytes(b"t")
-        (self.old_store / "notes.txt").write_text("mine", encoding="utf-8")
-
-    async def plan(self, location):
-        resp = await self.client.post(PLAN, json={"mode": "move", "location": location})
-        return resp.status, await resp.json()
-
-    async def move(self, location, confirmed=True):
-        status, plan = await self.plan(location)
-        self.assertEqual(status, 200, plan)
-        resp = await self.client.post(
-            START, json={"mode": "move", "token": plan["token"], "confirmed": confirmed}
-        )
-        body = await resp.json()
-        self.assertEqual(resp.status, 202, body)
-        job = self.api._jobs.get(body["job"]["id"])
-        await job.task
-        return plan, job
-
-    def config(self):
-        with open(self.config_path, encoding="utf-8") as handle:
-            return json.load(handle)
-
-    def key_files(self, folder=None):
-        folder = folder or self.folder
-        return sorted(
-            p.relative_to(folder).as_posix()
-            for p in folder.rglob("*")
-            if p.is_file() and p.name != preview_location.MARKER_NAME
-        )
-
-
-class TestMoveToAFolder(MoveCase):
-    async def test_review_counts_what_moves_is_removed_and_stays(self):
-        status, plan = await self.plan({"mode": "folder", "path": str(self.folder)})
-        self.assertEqual(status, 200, plan)
-        totals = plan["totals"]
-        self.assertEqual(
-            (
-                totals["files"],
-                totals["orphans"],
-                totals["temps"],
-                totals["left_in_place"],
-            ),
-            (2, 1, 1, 1),
-        )
-        self.assertTrue(plan["confirm_required"])
-        self.assertTrue(plan["to"]["will_create"])
-        self.assertFalse(self.folder.exists())  # the review writes nothing
-
-    async def test_a_move_copies_switches_and_removes_old_copies(self):
-        before = (self.output_dir / "a.png").read_bytes()
-        _plan, job = await self.move({"mode": "folder", "path": str(self.folder)})
-        self.assertEqual(job.state, "finished", job.log)
-        self.assertEqual(job.counters["moved"], 2)
-        keys = self.key_files()
-        self.assertEqual(len(keys), 2)
-        self.assertTrue(all(re.match(r"^output-[0-9a-f]{8}/", k) for k in keys))
-        location = self.config()["thumbnails"]["location"]
-        self.assertEqual(
-            (location["mode"], location["path"]), ("folder", str(self.folder))
-        )
-        self.assertEqual(location["cleanup"], [])
-        self.assertEqual(preview_store.current().mode, "folder")
-        # Old copies, the orphan and the temp went; the note stays, so its
-        # folder stays; originals are untouched.
-        self.assertEqual(
-            sorted(p.name for p in self.old_store.rglob("*")), ["notes.txt"]
-        )
-        self.assertEqual((self.output_dir / "a.png").read_bytes(), before)
-        self.assertFalse(self.journal.exists())
-        copied = next(self.folder.rglob("a_thumb.webp"))
-        self.assertEqual(copied.stat().st_mtime_ns % files.MTIME_STEP_NS, 0)
-
-    async def test_the_move_back_removes_the_folder_it_made(self):
-        await self.move({"mode": "folder", "path": str(self.folder)})
-        _plan, job = await self.move({"mode": "source"})
-        self.assertEqual(job.state, "finished", job.log)
-        self.assertTrue((self.old_store / "a_thumb.webp").is_file())
-        self.assertTrue((self.old_store / "sub" / "b_thumb.webp").is_file())
-        self.assertFalse(self.folder.exists())
-        self.assertEqual(self.config()["thumbnails"]["location"]["mode"], "source")
-
-    async def test_folder_to_folder_keeps_the_key_names(self):
-        await self.move({"mode": "folder", "path": str(self.folder)})
-        first = self.key_files()
-        other = Path(self.tmpdir) / "thumbs2"
-        _plan, job = await self.move({"mode": "folder", "path": str(other)})
-        self.assertEqual(job.state, "finished", job.log)
-        self.assertEqual(self.key_files(other), first)
-        self.assertFalse(self.folder.exists())
-
-    async def test_previews_of_sources_no_longer_listed_go_when_leaving(self):
-        await self.move({"mode": "folder", "path": str(self.folder)})
-        setting = preview_store.setting()
-
-        def add(marker):
-            marker["keys"]["old-0123abcd"] = {
-                "path": "/gone",
-                "identity": "/gone",
-                "install": setting.install,
-            }
-
-        preview_location.write_marker(str(self.folder), add)
-        make_png(self.folder / "old-0123abcd" / "x_thumb.webp", size=(4, 4))
-        preview_store.refresh()
-        status, plan = await self.plan({"mode": "source"})
-        self.assertEqual(status, 200)
-        self.assertEqual(plan["totals"]["unlisted_sources"], 1)
-        _, job = await self.move({"mode": "source"})
-        self.assertEqual(job.state, "finished", job.log)
-        self.assertFalse(self.folder.exists())
-
-    async def test_confirmation_and_a_stale_token(self):
-        status, plan = await self.plan({"mode": "folder", "path": str(self.folder)})
-        resp = await self.client.post(
-            START, json={"mode": "move", "token": plan["token"]}
-        )
-        self.assertEqual((await resp.json())["code"], "confirmation-required")
-        resp = await self.client.post(
-            START, json={"mode": "move", "token": "nope", "confirmed": True}
-        )
-        self.assertEqual(resp.status, 409)
-        self.assertEqual((await resp.json())["code"], "plan-stale")
-
-    async def test_a_folder_that_is_too_small_is_refused(self):
-        with patch.object(move_plan, "_free", lambda _path: 1):
-            status, body = await self.plan({"mode": "folder", "path": str(self.folder)})
-        self.assertEqual(status, 507)
-        self.assertEqual(body["code"], "insufficient-space")
-
-    async def test_validation_refusals_come_back_in_place(self):
-        status, body = await self.plan(
-            {"mode": "folder", "path": str(self.output_dir / "thumbs")}
-        )
-        self.assertEqual((status, body["code"]), (400, "location-served"))
-        status, body = await self.plan({"mode": "source"})
-        self.assertEqual(body["code"], "location-same")
-
-
-class TestFailures(MoveCase):
-    async def test_a_per_file_error_still_switches_and_removes_its_old_copy(self):
-        real = files.copy_one
-
-        def failing(source, destination, *args, **kwargs):
-            if Path(source).name == "a_thumb.webp":
-                raise files.CopyFailed("Could not be read; made again on view")
-            return real(source, destination, *args, **kwargs)
-
-        with patch.object(files, "copy_one", failing):
-            _plan, job = await self.move({"mode": "folder", "path": str(self.folder)})
-        self.assertEqual(job.state, "finished")
-        self.assertEqual((job.counters["moved"], job.counters["errors"]), (1, 1))
-        self.assertFalse((self.old_store / "a_thumb.webp").exists())
-
-    async def test_a_folder_wide_error_changes_nothing(self):
-        def gone(*_args, **_kwargs):
-            raise files.FolderGone("disk full")
-
-        with patch.object(files, "copy_one", gone):
-            _plan, job = await self.move({"mode": "folder", "path": str(self.folder)})
-        self.assertEqual(job.state, "failed")
-        self.assertIn("nothing changed", job.status_line)
-        self.assertFalse(self.folder.exists())
-        self.assertTrue((self.old_store / "a_thumb.webp").is_file())
-        self.assertEqual(preview_store.current().mode, "source")
-        self.assertFalse(self.journal.exists())
-
-    async def test_cancel_before_the_switch_changes_nothing(self):
-        status, plan = await self.plan({"mode": "folder", "path": str(self.folder)})
-        real = self.api._move_copy_one
-
-        def cancel_first(pair, **kwargs):
-            job = self.api._jobs.active("thumbnails")
-            job.cancelled = True
-            return real(pair, **kwargs)
-
-        with patch.object(self.api, "_move_copy_one", cancel_first):
-            resp = await self.client.post(
-                START, json={"mode": "move", "token": plan["token"], "confirmed": True}
-            )
-            job = self.api._jobs.get((await resp.json())["job"]["id"])
-            await job.task
-        self.assertEqual(job.state, "cancelled")
-        self.assertFalse(self.folder.exists())
-        self.assertEqual(preview_store.current().mode, "source")
-
-    async def test_an_exit_during_the_copy_leaves_the_journal_for_the_next_start(self):
-        status, plan = await self.plan({"mode": "folder", "path": str(self.folder)})
-        real = self.api._move_copy_one
-        exiting = {"now": False}
-
-        def exit_after(pair, **kwargs):
-            result = real(pair, **kwargs)
-            exiting["now"] = True  # the interpreter starts exiting
-            return result
-
-        from py.api import thumbnail_move
-
-        with (
-            patch.object(self.api, "_move_copy_one", exit_after),
-            patch.object(
-                thumbnail_move.exit_signal, "requested", lambda: exiting["now"]
-            ),
-        ):
-            resp = await self.client.post(
-                START, json={"mode": "move", "token": plan["token"], "confirmed": True}
-            )
-            job = self.api._jobs.get((await resp.json())["job"]["id"])
-            await job.task
-        self.assertTrue(self.journal.exists())
-        self.assertTrue(self.key_files())  # partial copies were left
-        # The next start undoes it: copies and the created folder go.
-        self.api._move_recovered = False
-        self.api.recover_thumbnail_move()
-        self.assertFalse(self.journal.exists())
-        self.assertFalse(self.folder.exists())
-        self.assertTrue((self.old_store / "a_thumb.webp").is_file())
-
-
-class TestRestart(MoveCase):
-    async def test_a_journal_left_after_the_switch_is_forgotten(self):
-        await self.move({"mode": "folder", "path": str(self.folder)})
-        self.journal.parent.mkdir(parents=True, exist_ok=True)
-        self.journal.write_text(
-            json.dumps(
-                {"state": "copying", "to": {"mode": "folder", "path": str(self.folder)}}
-            ),
-            encoding="utf-8",
-        )
-        self.api._move_recovered = False
-        self.api.recover_thumbnail_move()
-        self.assertFalse(self.journal.exists())
-        self.assertTrue(self.key_files())
-
-    async def test_old_copies_that_waited_are_removed_by_the_finishing_job(self):
-        with patch.object(files, "remove_file", lambda path, **_k: False):
-            _plan, job = await self.move({"mode": "folder", "path": str(self.folder)})
-        self.assertTrue(preview_store.setting().cleanup)
-        self.assertTrue((self.old_store / "a_thumb.webp").exists())
-        # Each removal that failed is an error the job counts and lists by path.
-        rows = job.outcomes["errors"]
-        self.assertEqual(job.counters["errors"], len(rows))
-        self.assertIn("sub/b_thumb.webp", {row["path"] for row in rows})
-        self.assertTrue(all("next start" in row["detail"] for row in rows))
-        job = await self.api.finish_thumbnail_move()
-        await job.task
-        self.assertEqual(job.title, "Move thumbnails (finishing)")
-        self.assertFalse((self.old_store / "a_thumb.webp").exists())
-        self.assertEqual(self.config()["thumbnails"]["location"]["cleanup"], [])
-
-
-class TestAdmission(MoveCase):
-    async def test_automatic_previews_and_setting_changes_wait_for_the_move(self):
-        status, plan = await self.plan({"mode": "folder", "path": str(self.folder)})
-        seen = {}
-        real = self.api._move_copy_one
-
-        def observe(pair, **kwargs):
-            seen["blocker"] = self.api._auto_thumbnail_blocker()
-            return real(pair, **kwargs)
-
-        with patch.object(self.api, "_move_copy_one", observe):
-            resp = await self.client.post(
-                START, json={"mode": "move", "token": plan["token"], "confirmed": True}
-            )
-            job = self.api._jobs.get((await resp.json())["job"]["id"])
-            refused = self.api._thumbnail_change_refused({"THUMBNAIL_QUALITY": 5})
-            self.assertEqual(refused.status, 409)
-            await job.task
-        self.assertIs(seen["blocker"], job)
-
-    def test_the_move_never_trims_memory_and_copies_on_the_job_pool(self):
-        text = "".join(
-            (REPO / "py" / "api" / name).read_text(encoding="utf-8")
-            for name in ("thumbnail_move.py", "thumbnail_prune.py")
-        )
-        self.assertNotIn("_release_job_memory", text)
-        self.assertIn("map_parallel", (REPO / "py/api/thumbnail_move.py").read_text())
-
-
-class TestPrune(MoveCase):
-    async def test_only_this_installs_removed_sources_go(self):
-        await self.move({"mode": "folder", "path": str(self.folder)})
-        install = preview_store.setting().install
-
-        def add(marker):
-            marker["keys"]["old-0123abcd"] = {"identity": "/gone", "install": install}
-            marker["keys"]["theirs-0123abcd"] = {"identity": "/x", "install": "other"}
-
-        preview_location.write_marker(str(self.folder), add)
-        make_png(self.folder / "old-0123abcd" / "x_thumb.webp", size=(4, 4))
-        make_png(self.folder / "theirs-0123abcd" / "y_thumb.webp", size=(4, 4))
-        preview_store.refresh()
-        resp = await self.client.get(PLAN + "?mode=prune")
-        body = await resp.json()
-        self.assertEqual([s["key"] for s in body["sources"]], ["old-0123abcd"])
-        self.assertIn("1 source no longer listed", body["line"])
-        resp = await self.client.post(START, json={"mode": "prune"})
-        job = self.api._jobs.get((await resp.json())["job"]["id"])
-        await job.task
-        self.assertFalse((self.folder / "old-0123abcd").exists())
-        self.assertTrue((self.folder / "theirs-0123abcd" / "y_thumb.webp").exists())
-        keys = preview_location.read_marker(str(self.folder))["keys"]
-        self.assertNotIn("old-0123abcd", keys)
-
-
-class TestRecreate(MoveCase):
-    async def test_recreate_and_its_refusals(self):
-        await self.move({"mode": "folder", "path": str(self.folder)})
-        url = "/prompt_manager/images/thumbnails/location/recreate"
-        resp = await self.client.post(url)
-        self.assertEqual((await resp.json())["code"], "location-has-marker")
-        for child in sorted(self.folder.rglob("*"), reverse=True):
-            child.rmdir() if child.is_dir() else child.unlink()
-        self.folder.rmdir()
-        self.assertFalse(preview_store.refresh())
-        resp = await self.client.post(url)
-        self.assertEqual(resp.status, 200, await resp.text())
-        self.assertTrue(preview_store.current().available)
-        self.assertNotEqual(self.config()["thumbnails"]["location"]["id"], None)
-
-    async def test_use_this_folder_adopts_another_marker(self):
-        await self.move({"mode": "folder", "path": str(self.folder)})
-        marker = preview_location.read_marker(str(self.folder))
-        marker["id"] = "someone-else"
-        (self.folder / preview_location.MARKER_NAME).write_text(
-            json.dumps(marker), encoding="utf-8"
-        )
-        self.assertFalse(preview_store.refresh())
-        resp = await self.client.post(
-            "/prompt_manager/images/thumbnails/location/adopt"
-        )
-        self.assertEqual(resp.status, 200, await resp.text())
-        self.assertTrue(preview_store.current().available)
-        self.assertEqual(self.config()["thumbnails"]["location"]["id"], "someone-else")
-
-
-class TestFiles(unittest.TestCase):
-    def test_mtime_rounds_up_to_two_seconds(self):
-        self.assertEqual(files.rounded_mtime_ns(0), 0)
-        self.assertEqual(files.rounded_mtime_ns(1), files.MTIME_STEP_NS)
-        self.assertEqual(
-            files.rounded_mtime_ns(files.MTIME_STEP_NS), files.MTIME_STEP_NS
-        )
-
-    def test_long_windows_destinations_are_per_file_errors(self):
-        self.assertTrue(files.too_long("D:\\" + "x" * 240, long_paths=False))
-        self.assertFalse(files.too_long("D:\\x", long_paths=False))
-
-    def test_a_failed_copys_temp_that_cannot_go_is_logged(self):
-        with patch.object(files.os, "unlink", side_effect=PermissionError("held")):
-            with self.assertLogs("prompt_manager.thumbnails", "WARNING") as logs:
-                self.assertFalse(files._unlink("D:/thumbs/.pm-move-1.tmp"))
-        self.assertIn(".pm-move-1.tmp", logs.output[0])
-        with patch.object(files.os, "unlink", side_effect=FileNotFoundError()):
-            self.assertTrue(files._unlink("gone"))
-
-    def test_a_held_open_file_is_retried_then_left(self):
-        waits = []
-        error = OSError("in use")
-        error.winerror = 32
-        with patch.object(files.os, "unlink", side_effect=error):
-            self.assertFalse(files.remove_file("x", sleep=waits.append))
-        self.assertEqual(waits, [0.5, 1.0, 2.0])
-
-
-if __name__ == "__main__":
-    unittest.main()
-
-
-class TestReviewFindings(MoveCase):
-    async def test_moving_back_never_removes_previews_a_waiting_cleanup_named(self):
-        await self.move({"mode": "folder", "path": str(self.folder)})
-        other = Path(self.tmpdir) / "thumbs2"
-        # The old copies in the first folder cannot go yet (held open).
-        with patch.object(files, "remove_file", lambda path, **_k: False):
-            await self.move({"mode": "folder", "path": str(other)})
-        self.assertTrue(preview_store.setting().cleanup)
-        _plan, job = await self.move({"mode": "folder", "path": str(self.folder)})
-        self.assertEqual(job.state, "finished", job.log)
-        self.assertEqual(len(self.key_files()), 2)  # the previews moved back stay
-
-    @unittest.skipUnless(hasattr(os, "symlink"), "needs symlinks")
-    def test_empty_folder_removal_never_walks_through_a_link(self):
-        outside = Path(self.tmpdir) / "outside"
-        (outside / "empty").mkdir(parents=True)
-        (outside / "Thumbs.db").write_bytes(b"x")
-        store = Path(self.tmpdir) / "store"
-        store.mkdir()
-        try:
-            (store / "link").symlink_to(outside, target_is_directory=True)
-        except OSError:
-            self.skipTest("symlinks not permitted")
-        files.remove_empty_folders(store)
-        self.assertTrue((outside / "empty").is_dir())
-        self.assertTrue((outside / "Thumbs.db").exists())
-
-    @unittest.skipUnless(hasattr(os, "symlink"), "needs symlinks")
-    async def test_moving_back_never_copies_through_an_existing_linked_folder(self):
-        # Codex P1 on #592: an existing linked folder in the destination was
-        # followed, and a file outside the source was replaced.
-        await self.move({"mode": "folder", "path": str(self.folder)})
-        outside = Path(self.tmpdir) / "outside-p1"
-        outside.mkdir()
-        (outside / "b_thumb.webp").write_bytes(b"not ours")
-        if (self.old_store / "sub").exists():
-            (self.old_store / "sub").rmdir()
-        try:
-            (self.old_store / "sub").symlink_to(outside, target_is_directory=True)
-        except OSError:
-            self.skipTest("symlinks not permitted")
-        _plan, job = await self.move({"mode": "source", "path": None})
-        self.assertEqual((outside / "b_thumb.webp").read_bytes(), b"not ours")
-        self.assertEqual(job.counters["errors"], 1, job.log)
-        self.assertTrue((self.old_store / "a_thumb.webp").is_file())
-
-    @unittest.skipUnless(os.name == "nt", "junctions are Windows only")
-    def test_empty_folder_removal_never_walks_through_a_junction(self):
-        import _winapi
-
-        outside = Path(self.tmpdir) / "outside-j"
-        (outside / "empty").mkdir(parents=True)
-        (outside / "Thumbs.db").write_bytes(b"x")
-        store = Path(self.tmpdir) / "store-j"
-        store.mkdir()
-        _winapi.CreateJunction(str(outside), str(store / "junction"))
-        files.remove_empty_folders(store)
-        self.assertTrue((outside / "empty").is_dir())
-        self.assertTrue((outside / "Thumbs.db").exists())
-
-    async def test_an_unexpected_error_while_copying_changes_nothing(self):
-        def broken(*_args, **_kwargs):
-            raise PermissionError("denied")
-
-        with patch.object(files, "_make_folders", broken):
-            _plan, job = await self.move({"mode": "folder", "path": str(self.folder)})
-        self.assertEqual(job.state, "failed")
-        self.assertFalse(self.journal.exists())
-        self.assertFalse(self.folder.exists())
-        self.assertEqual(preview_store.current().mode, "source")
-
-    async def test_a_journal_that_cannot_be_removed_never_undoes_the_switch(self):
-        from py.api import thumbnail_move
-
-        real = thumbnail_move._remove
-
-        def stuck(path):
-            if str(path) == str(self.journal):
-                raise PermissionError("in use")
-            return real(path)
-
-        with patch.object(thumbnail_move, "_remove", stuck):
-            _plan, job = await self.move({"mode": "folder", "path": str(self.folder)})
-        self.assertEqual(job.state, "finished", job.log)
-        self.assertEqual(len(self.key_files()), 2)
-        self.assertEqual(preview_store.current().mode, "folder")
-
-    async def test_a_hostile_key_is_never_pruned(self):
-        await self.move({"mode": "folder", "path": str(self.folder)})
-        victim = Path(self.tmpdir) / "victim"
-        make_png(victim / "z_thumb.webp", size=(4, 4))
-        marker = preview_location.read_marker(str(self.folder))
-        marker["keys"]["../victim"] = {"identity": "/gone", "install": marker_install()}
-        (self.folder / preview_location.MARKER_NAME).write_text(
-            json.dumps(marker), encoding="utf-8"
-        )
-        preview_store.refresh()
-        resp = await self.client.post(START, json={"mode": "prune"})
-        job = self.api._jobs.get((await resp.json())["job"]["id"])
-        await job.task
-        self.assertTrue((victim / "z_thumb.webp").exists())
-
-    def test_a_hand_edited_source_store_must_be_a_thumbnails_folder(self):
-        elsewhere = Path(self.tmpdir) / "photos"
-        make_png(elsewhere / "keep_thumb.webp", size=(4, 4))
-        self.assertTrue(self.api._remove_store(elsewhere, None, None))
-        self.assertTrue((elsewhere / "keep_thumb.webp").exists())
-
-
-def marker_install():
-    return preview_store.setting().install

tests/test_utils_parallel.py

@@ -12,12 +12,10 @@ import unittest
 
 sys.path.insert(0, os.path.dirname(os.path.dirname(os.path.abspath(__file__))))
 
-from utils import exit_signal, parallel  # noqa: E402
+from utils import parallel  # noqa: E402
 from utils.parallel import JOB_THREAD_PREFIX, map_parallel  # noqa: E402
 
 WAIT = 30
-# A map that has not returned by then is stuck (#593).
-HANG_LIMIT = 5
 
 
 def _job_threads():
@@ -165,68 +163,5 @@ class TestMapParallel(unittest.TestCase):
             map_parallel(boom, [1, 2, 3], workers=3)
 
 
-class TestErrorAfterShutdownCancel(unittest.TestCase):
-    """#593: ``shutdown_job_pool`` cancels the call's queued items without
-    notifying them, so the error path must not wait on them (exit hung)."""
-
-    def setUp(self):
-        exit_signal.reset()
-        self.addCleanup(exit_signal.reset)
-        self.assertTrue(parallel.shutdown_job_pool(WAIT))
-        self.addCleanup(parallel.shutdown_job_pool, WAIT)
-
-    def _run_in_thread(self, func, items):
-        """``map_parallel`` on a daemon thread: (thread, outcome list), so a
-        hang fails the test instead of hanging the suite."""
-        outcome = []
-
-        def call():
-            try:
-                outcome.append(("result", map_parallel(func, items, 1)))
-            except Exception as error:  # the outcome the test checks
-                outcome.append(("error", error))
-
-        thread = threading.Thread(target=call, daemon=True)
-        thread.start()
-        return thread, outcome
-
-    def _hold_first_then_cancel_rest(self, first):
-        """One worker runs item 0 (``first``) while items 1 and 2 queue;
-        shutdown cancels the queued two, then item 0 is released."""
-        entered, release = threading.Event(), threading.Event()
-
-        def item(n):
-            if n == 0:
-                entered.set()
-                self.assertTrue(release.wait(WAIT))
-                return first()
-            return n
-
-        thread, outcome = self._run_in_thread(item, [0, 1, 2])
-        self.assertTrue(entered.wait(WAIT))
-        self.assertFalse(parallel.shutdown_job_pool(0))  # item 0 still runs
-        release.set()
-        thread.join(HANG_LIMIT)
-        self.assertFalse(thread.is_alive(), "map_parallel hung on cancelled items")
-        return outcome
-
-    def test_a_running_item_raising_after_shutdown_cancel_returns(self):
-        def fail():
-            raise ValueError("zero")
-
-        outcome = self._hold_first_then_cancel_rest(fail)
-        self.assertEqual(outcome[0][0], "error")
-        self.assertIsInstance(outcome[0][1], ValueError)
-
-    def test_exit_requested_inline_after_shutdown_cancel_returns(self):
-        def signal_exit():
-            exit_signal.request()  # the cancelled items then run inline
-            return 0
-
-        outcome = self._hold_first_then_cancel_rest(signal_exit)
-        self.assertEqual(outcome[0][0], "error")
-        self.assertIsInstance(outcome[0][1], exit_signal.ExitRequested)
-
-
 if __name__ == "__main__":
     unittest.main()

tests/trash_route_audit.py

@@ -15,8 +15,6 @@ KNOWN_FILE_READERS = frozenset(
         "images.py:os.open(",
         "__init__.py:Image.open(",
         "logging_routes.py:os.open(",
-        # The thumbnail folder's marker lock file (#320), never a media file.
-        "preview_location.py:os.open(",
         "thumbnail_auto.py:FileResponse(",
         "thumbnail_encode.py:Image.open(",
     }
@@ -79,7 +77,6 @@ ROUTE_AUDIT = {
         "POST /prompt_manager/jobs/autotag",
         "POST /prompt_manager/jobs/thumbnails",
         "GET /prompt_manager/images/thumbnails/plan",
-        "POST /prompt_manager/images/thumbnails/plan",
         "GET /prompt_manager/images/thumbnails/status",
         "POST /prompt_manager/images/generate-thumbnails",
         "POST /prompt_manager/images/generate-thumbnails/progress",
@@ -175,8 +172,6 @@ ROUTE_AUDIT = {
         "POST /prompt_manager/cleanup",
         "POST /prompt_manager/diagnostics/test-link",
         "POST /prompt_manager/images/clear-thumbnails",
-        "POST /prompt_manager/images/thumbnails/location/adopt",
-        "POST /prompt_manager/images/thumbnails/location/recreate",
         "POST /prompt_manager/jobs/model-download",
         "POST /prompt_manager/jobs/{job_id}/cancel",
         "POST /prompt_manager/library",

tests/vendor/browser-image.test.mjs

@@ -8,8 +8,6 @@ import { readFileSync } from 'node:fs';
 const workflow = readFileSync(new URL('../../.github/workflows/viewerjs-check.yml', import.meta.url), 'utf8');
 const lock = JSON.parse(readFileSync(new URL('../../tools/vendor/package-lock.json', import.meta.url), 'utf8'));
 const version = lock.packages['node_modules/@playwright/test'].version;
-// The tag alone is not a pin: v1.64.1-noble was re-pushed with Node 26 (#609). The digest fixes the image's contents.
-const pinnedImage = `^    container:\\n      image: mcr\\.microsoft\\.com/playwright:v${version.replaceAll('.', '\\.')}-noble@sha256:[0-9a-f]{64}$`;
 
 function job(name) {
     const match = workflow.match(new RegExp(`^  ${name}:\\n([\\s\\S]*?)(?=^  [a-z][a-z-]*:\\n|(?![\\s\\S]))`, 'm'));
@@ -20,7 +18,7 @@ function job(name) {
 for (const name of ['frontend-coverage', 'browser-workflows']) {
     test(`${name} runs in the pinned Playwright image matching @playwright/test`, () => {
         const body = job(name);
-        assert.match(body, new RegExp(pinnedImage, 'm'));
+        assert.match(body, new RegExp(`^    container:\\n      image: mcr\\.microsoft\\.com/playwright:v${version.replaceAll('.', '\\.')}-noble$`, 'm'));
         assert.doesNotMatch(body, /playwright install/, 'browsers and their fonts come from the image, not a runner install');
         // Toolcache interpreters are the runner's own builds: their entry points name host paths that do not exist in
         // the container (setup-python failed with `spawn .../bin/pip ENOENT`). Use the image's Python and Node.
@@ -41,7 +39,7 @@ test('real ComfyUI compatibility runs in the pinned Playwright image on the revi
     const match = testWorkflow.match(/^ {2}comfyui:\n([\s\S]*?)(?=^ {2}[a-z][a-z-]*:\n|(?![\s\S]))/m);
     assert.ok(match, 'comfyui job exists');
     const body = match[1];
-    assert.match(body, new RegExp(pinnedImage, 'm'));
+    assert.match(body, new RegExp(`^    container:\\n      image: mcr\\.microsoft\\.com/playwright:v${version.replaceAll('.', '\\.')}-noble$`, 'm'));
     assert.doesNotMatch(body, /playwright install/, 'Chromium and its system libraries come from the image, not apt');
     assert.doesNotMatch(body, /apt-get|actions\/setup-(python|node)@/);
     assert.match(body, /python3 -m venv --without-pip /, 'a user-space venv on the image Python');

tests/vendor/ci-workflow.test.mjs

@@ -10,7 +10,7 @@ import { tmpdir } from 'node:os';
 import { join } from 'node:path';
 
 const workflow = readFileSync(new URL('../../.github/workflows/viewerjs-check.yml', import.meta.url), 'utf8');
-const PINNED_IMAGE = /^\s+image: mcr\.microsoft\.com\/playwright:v\d+\.\d+\.\d+-noble@sha256:[0-9a-f]{64}$/m;
+const PINNED_IMAGE = /^\s+image: mcr\.microsoft\.com\/playwright:v\d+\.\d+\.\d+-noble$/m;
 
 function jobs(text) {
     const lines = text.split('\n');
@@ -237,7 +237,7 @@ test('every npm ci restores the npm download cache keyed on the vendor lockfile
         assert.match(jobSteps[cacheAt], /hashFiles\('tools\/vendor\/package-lock\.json'\)/, `${id} keys the cache on the lockfile`);
         assert.match(jobSteps[installAt], /npm ci --prefix tools\/vendor --ignore-scripts/, `${id} still installs without scripts`);
         // The key names the job's own pinned image, so an image bump starts a fresh cache.
-        const image = /^ {6}image: mcr\.microsoft\.com\/playwright:(v\d+\.\d+\.\d+)-noble@sha256:[0-9a-f]{64}$/m.exec(body)?.[1];
+        const image = /^ {6}image: mcr\.microsoft\.com\/playwright:(v\d+\.\d+\.\d+)-noble$/m.exec(body)?.[1];
         assert.ok(image, `${id} runs in the pinned Playwright image`);
         assert.match(jobSteps[cacheAt], new RegExp(`key: npm-\\$\\{\\{ runner\\.os \\}\\}-playwright-${image.replaceAll('.', '\\.')}-\\$\\{\\{ hashFiles`),
             `${id} keys the cache on its image ${image}`);

tools/vendor/frontend-coverage-baseline.json

@@ -653,12 +653,6 @@
     "functions": 95,
     "statements": 98
   },
-  "workspace/system-thumbnail-location.mjs": {
-    "lines": 80,
-    "branches": 65,
-    "functions": 75,
-    "statements": 80
-  },
   "workspace/system-thumbnails.mjs": {
     "lines": 98,
     "branches": 95,

utils/image_monitor.py

@@ -113,10 +113,7 @@ def _start_daemon_observer(observer) -> None:
     def start() -> None:
         try:
             observer.start()
-        # BaseException on purpose: a KeyboardInterrupt or SystemExit raised
-        # by start() is not lost on this thread; _start_daemon_observer
-        # re-raises it on the caller's thread below.
-        except BaseException as e:
+        except BaseException as e:  # re-raised on the caller's thread
             raised.append(e)
 
     starter = threading.Thread(

utils/native_memory.py

@@ -16,9 +16,8 @@ import sys
 import threading
 
 _lock = threading.Lock()
-# Not looked up yet; after the lookup, the function or None.
-_NOT_LOOKED_UP = object()
-_trim = _NOT_LOOKED_UP
+_trim = None
+_looked_up = False
 
 
 def _glibc() -> bool:
@@ -34,9 +33,10 @@ def _glibc() -> bool:
 
 def _malloc_trim():
     """glibc's ``malloc_trim``, looked up once; None where there is none."""
-    global _trim
+    global _trim, _looked_up
     with _lock:
-        if _trim is _NOT_LOOKED_UP:
+        if not _looked_up:
+            _looked_up = True
             _trim = _lookup()
         return _trim
 

utils/parallel.py

@@ -165,12 +165,10 @@ def _collect(func, items, futures):
     and wait for its running ones, as the old per-call pool's exit did."""
     try:
         return _run_rest(func, items, futures)
-    except BaseException:  # re-raised below, after the running items stop
-        # Wait only for what could not be cancelled (running or done). A
-        # future ``shutdown(cancel_futures=True)`` already cancelled stays
-        # CANCELLED, never notified, and ``wait`` would block on it forever
-        # (#593); ``cancel()`` is True for those as well.
-        wait([future for future in futures if not future.cancel()])
+    except BaseException:
+        for future in futures:
+            future.cancel()
+        wait(futures)
         raise
 
 

web/js/api-client.js

@@ -62,13 +62,6 @@
                 (typeof job.title === "string" && job.title.length > 0 && job.title.length <= 200))) {
                 this.job = { id: job.id, title: job.title };
             }
-            // A move refused for space (#320) carries its review, so the page
-            // can show what would have moved and why it cannot start.
-            this.plan = null;
-            if (this.code === "insufficient-space" && current && current.plan &&
-                typeof current.plan === "object" && !Array.isArray(current.plan)) {
-                this.plan = current.plan;
-            }
             this.source = null;
             if (this.code === "invalid-source" && current && typeof current.source === "string" &&
                 current.source.length > 0 && current.source.length <= 4096) {

web/js/workspace/activity-job-view.mjs

@@ -190,10 +190,7 @@ export function mountActivityJobView(main, { store, scope, api, jobId }) {
     bar.max = 100;
     const stats = element('dl', undefined, 'stat-row');
     const tileValues = new Map();
-    // #320 D198: a kind with phases (Move thumbnails) says which one runs and what it means, under the bar.
-    const phase = element('p', '', 'small');
-    phase.id = 'job-phase';
-    progressPart.node.append(bar, phase, stats);
+    progressPart.node.append(bar, stats);
 
     const resultsPart = section('Results', 'job-results-title');
     const search = element('label', undefined, 'search-field');
@@ -251,7 +248,6 @@ export function mountActivityJobView(main, { store, scope, api, jobId }) {
     function layout(job) {
         view = viewOf(job);
         if (!view.tiles.length) stats.remove();
-        if (typeof view.phase !== 'function') phase.remove();
         for (const [group, label, tone] of view.tiles) {
             const tile = element('div', undefined, tone ? `stat ${tone}` : 'stat');
             const value = element('dd', '0');
@@ -372,7 +368,6 @@ export function mountActivityJobView(main, { store, scope, api, jobId }) {
             cancel.remove();
         }
         status.textContent = progressLine(job);
-        if (typeof view?.phase === 'function') phase.textContent = view.phase(job);
         // D111: no value while the total is unknown; a job that ended with nothing counted shows how it ended.
         showProgress(bar, job.total > 0 || job.state !== 'finished' ? job : { ...job, progress: 100 });
         bar.setAttribute('aria-label', scan ? 'Scan progress' : `${job.title} progress`);

web/js/workspace/activity-kinds.mjs

@@ -51,26 +51,6 @@ export const removedOf = job => counted(job, 'removed', 'removed');
 /** "12 imported" (System S10: the LoRA reference import). */
 export const importedOf = job => counted(job, 'imported', 'imported');
 
-/** #320 D198: the step a Move thumbnails job is in, and what it means meanwhile (under the progress bar). */
-export function movePhase(job) {
-    const from = job.scope?.from === 'folder' ? 'the old folder' : 'inside each source';
-    if (job.state === 'running') {
-        if (job.scope?.phase === 'remove') return 'Removing the old copies a move left. Thumbnails are read from the new location.';
-        if (job.cancellable !== false) {
-            return `Step 1 of 3: copying. Thumbnails are still read from ${from} until the switch. New thumbnails are not `
-                + 'written until the move ends; originals are shown instead.';
-        }
-        return 'Step 2 and 3 of 3: switching, then removing the old copies. This can no longer be cancelled.';
-    }
-    if (job.state === 'finished') {
-        const left = job.counters?.left ?? 0;
-        return left ? `Thumbnails are now read from the new location. ${number(left)} ${noun(left, 'file')} that `
-            + `${left === 1 ? 'is' : 'are'} not ${left === 1 ? 'a thumbnail was' : 'thumbnails were'} left in place.`
-            : 'Thumbnails are now read from the new location.';
-    }
-    return 'Nothing changed: thumbnails are read from where they were.';
-}
-
 /** "2 output folders": what a scan or a thumbnail job walks. */
 function foldersOf(job) {
     const folders = job.scope?.output_folders;
@@ -179,32 +159,6 @@ export const KINDS = Object.freeze({
         outcomes: tiles([['generated', 'Generated'], ['errors', 'Errors'], ['skipped', 'Skipped']]),
         openable: groups('generated', 'skipped'),
     }),
-    // #320 D198: Move thumbnails, a `thumbnails` job with `scope.mode` "move": Moved (green), Already there, Left in
-    // place and Errors (red); Cancel only until the switch (the server says so through `cancellable`).
-    'thumbnails:move': Object.freeze({
-        ...GENERIC,
-        pillVerb: 'Moving thumbnails',
-        finishToast: job => (job.status_line && job.state !== 'running' ? job.status_line : titleFinished(job)),
-        line: job => (job.state === 'running' ? '' : job.status_line || ''),
-        kept: job => counted(job, 'moved', 'moved'),
-        tiles: tiles([['moved', 'Moved', 'added'], ['skipped', 'Already there', ''], ['left', 'Left in place', ''],
-            ['errors', 'Errors', 'bad']]),
-        outcomes: tiles([['moved', 'Moved'], ['errors', 'Errors'], ['skipped', 'Already there'], ['left', 'Left in place']]),
-        log: 'Move log',
-        phase: movePhase,
-        cancelLabel: 'Cancel move',
-        cancel: 'Cancel move',
-    }),
-    // #320 D200: Remove thumbnails of removed sources (`scope.mode` "prune"): Removed, Left in place and Errors.
-    'thumbnails:prune': Object.freeze({
-        ...GENERIC,
-        pillVerb: 'Removing thumbnails',
-        finishToast: job => (job.status_line && job.state !== 'running' ? job.status_line : titleFinished(job)),
-        line: job => (job.state === 'running' ? '' : job.status_line || ''),
-        kept: removedOf,
-        tiles: tiles([['removed', 'Removed', 'added'], ['left', 'Left in place', ''], ['errors', 'Errors', 'bad']]),
-        outcomes: tiles([['removed', 'Removed'], ['errors', 'Errors'], ['left', 'Left in place']]),
-    }),
     // System S7: a reviewed maintenance plan's apply, titled after its operation; it runs without a known total.
     maintenance: Object.freeze({
         ...GENERIC,
@@ -289,9 +243,7 @@ export const held = job => job.cancellable === false && Object.keys(countsOf(job
  */
 export function viewOf(job) {
     if (held(job)) return GENERIC;
-    // #320 D198: a thumbnails job chooses its tiles by its scope's mode (move, prune).
-    const mode = job.kind === 'thumbnails' ? job.scope?.mode : null;
-    const view = (mode === 'move' || mode === 'prune') ? KINDS[`thumbnails:${mode}`] : kindOf(job.kind);
+    const view = kindOf(job.kind);
     const counts = countsOf(job);
     const has = ([group]) => Object.hasOwn(counts, group);
     if (view.tiles.every(has) && view.outcomes.every(has)) return view;

web/js/workspace/library-location.mjs

@@ -97,9 +97,6 @@ export function reviewGrid(location) {
             ? 'The database backups (config.json stays where PROMPT_MANAGER_CONFIG_PATH names it)'
             : 'config.json and the database backups'],
         ['Old files', 'Renamed *.moved-to-…, never deleted'],
-        // #320 D201: previews kept in one folder do not move with the library (D8A).
-        ...(typeof location.thumbnails_folder === 'string' && location.thumbnails_folder
-            ? [['Thumbnails', `Stay in ${location.thumbnails_folder}. Move them in System › Sources & scans.`]] : []),
     ];
 }
 

web/js/workspace/prompt-sender.mjs

@@ -63,19 +63,15 @@ export function createSendSession({client, roles:rawRoles, onChange}) {
         const target=host.targets.find(item=>item.id===state.targetId);
         return target ? [target] : [];
     }
-    // The adapter's revision is "<node identity>:<graph version>". Loading a workflow makes new node objects, so a new
-    // identity; our own write moves only the graph version. A string without the separator is all identity.
-    const nodeIdentity = revision => typeof revision==='string' && revision.includes(':') ? revision.slice(0,revision.indexOf(':')) : revision;
-    // graphMayMove is on only for a later node of "All", whose graph version our own earlier write may have moved; the node
-    // identity is still checked, so a write never lands in another workflow loaded in between (#593).
-    async function fetchPreview(request,hostId,target,graphMayMove=false) {
+    // checkRevision is off only for a later node of "All", whose revision our own earlier write may have moved.
+    async function fetchPreview(request,hostId,target,checkRevision=true) {
         const preview=await client.preview(hostId,target.id,roles,{signal:request.signal});
         if (!current(request)) return null;
         const fields=preview?.fields;
         if(typeof preview?.ticket!=='string' || !preview.ticket || preview.target?.id!==target.id || !Array.isArray(fields) || fields.length!==Object.keys(roles).length || new Set(fields.map(field=>field?.role)).size!==fields.length || Array.from(fields).some(field=>!field || !Object.hasOwn(roles,field.role) || typeof field.before!=='string' || field.after!==roles[field.role])) throw Error('ComfyUI returned an unexpected preview. Find the destination and preview again.');
         // Undefined on a tab still running older code, which has nothing to compare.
         const found=target.revision;
-        if(found!==undefined && (graphMayMove ? nodeIdentity(preview.revision)!==nodeIdentity(found) : preview.revision!==found)) throw Error('The workflow changed since this window was found. Nothing was sent. Find windows again.');
+        if(checkRevision && found!==undefined && preview.revision!==found) throw Error('The workflow changed since this window was found. Nothing was sent. Find windows again.');
         return preview;
     }
     function checkAcknowledgement(acknowledgement,targetId) {
@@ -99,21 +95,25 @@ export function createSendSession({client, roles:rawRoles, onChange}) {
         return reviewed;
     }
     /**
-     * Sends the reviewed nodes one after another, best effort past refusals. Every node takes a fresh ticket that must
-     * show exactly the reviewed text: a held review may have expired at the host (30 s), our own writes make later
-     * tickets stale, and the host keeps only its latest 100 tickets, so a pass over more nodes has evicted the first (#593).
+     * Sends the reviewed nodes one after another, best effort past refusals. Only the first node of a pass taken in this
+     * click keeps its ticket: a held review may have expired at the host (30 s), and our own writes may make later
+     * tickets stale, so every other node takes a fresh ticket that must show exactly the reviewed text.
      */
-    async function applyEach(request,hostId,reviewed,where) {
+    async function applyEach(request,hostId,reviewed,where,held) {
         const sent=[],refused=[];let written=false;
         for (const [index,{target,preview}] of reviewed.entries()) {
             let posted=false;
             try {
-                // Until something was posted the revision is still the discovered one; after that our own write may move it.
-                const fresh=await fetchPreview(request,hostId,target,written);
-                if (!fresh) return;
-                if (!sameChanges(preview,fresh)) throw Error('Its prompt changed since the preview. Preview again.');
+                let ticket=preview.ticket;
+                if (index>0 || held) {
+                    // Until something was posted the revision is still the discovered one; after that our own write may move it.
+                    const fresh=await fetchPreview(request,hostId,target,!written);
+                    if (!fresh) return;
+                    if (!sameChanges(preview,fresh)) throw Error('Its prompt changed since the preview. Preview again.');
+                    ticket=fresh.ticket;
+                }
                 posted=written=true;
-                const acknowledgement=await client.apply(hostId,fresh.ticket,{signal:request.signal});
+                const acknowledgement=await client.apply(hostId,ticket,{signal:request.signal});
                 if (!current(request)) return;
                 checkAcknowledgement(acknowledgement,target.id);
                 sent.push(target);
@@ -191,7 +191,7 @@ export function createSendSession({client, roles:rawRoles, onChange}) {
                 let reviewed;
                 try { reviewed=held?.length ? held : await previewEach(request,hostId,targets); }
                 catch(error) { if(current(request)) emit({phase:'error',message:error.message}); return; }
-                if (reviewed) await applyEach(request,hostId,reviewed,windowLabel);
+                if (reviewed) await applyEach(request,hostId,reviewed,windowLabel,Boolean(held?.length));
                 return;
             }
             const [target]=targets;

web/js/workspace/system-overview.mjs

@@ -28,7 +28,6 @@ import { showWorkspaceToast } from './toast.mjs';
 import { noun } from './plural.mjs';
 import { operationRow } from './system-controls.mjs';
 import { openThumbnailReview } from './thumbnail-review.mjs';
-import { noticeSlot } from './system-thumbnail-location.mjs';
 import { isLocation, locationRow, onMoveEnded } from './library-location.mjs';
 import { STATUS_LOADING, STATUS_URL, backupStatusText } from './system-backups.mjs';
 
@@ -407,7 +406,7 @@ function overviewNodes(overview, { api, activity, notify, scope, navigate, openS
  * `counts` is the shell's sidebar counts (`{get(id), subscribe(listener), freshen(ids)}`, index.mjs): the Images metric
  * shows its `images` count and follows it, and a visit re-reads it as the workspace Overview does (#555).
  */
-export function mountOverview(container, { api, activity, scope, drafts, counts = null, navigate = navigateTo,
+export function mountOverview(container, { api, activity, scope, counts = null, navigate = navigateTo,
     notify = showWorkspaceToast, latestOnly = window.ApiClient.latestOnly, STALE = window.ApiClient.STALE }) {
     const overviewRead = latestOnly({ lifetime: scope.signal });
     const statisticsRead = latestOnly({ lifetime: scope.signal });
@@ -467,8 +466,7 @@ export function mountOverview(container, { api, activity, scope, drafts, counts
             if (overview === STALE || scope.signal.aborted) return;
             const { nodes, thumbnails, backup, metrics } = overviewNodes(overview, { api, activity, notify, scope, navigate,
                 openStatistics, images: imagesCount(),
-                openThumbnails: trigger => openThumbnailReview({ api, store: activity, scope, trigger, navigate,
-                    location: drafts.get('host', 'thumbnail_location') }) });
+                openThumbnails: trigger => openThumbnailReview({ api, store: activity, scope, trigger, navigate }) });
             imagesValue = metrics.children[2].querySelector('strong');
             thumbnailRow = thumbnails;
             backupRow = backup;
@@ -524,11 +522,5 @@ export function mountOverview(container, { api, activity, scope, drafts, counts
     load();
     loadThumbnails();
     loadBackup();
-    // #320 D199: the unavailable thumbnail folder's notice, first on the page while it lasts.
-    const unavailable = noticeSlot({ api, scope, notify, location: () => drafts.get('host', 'thumbnail_location'),
-        onChange: () => navigate('#/system/sources'), onDone: () => drafts.reloadHost() });
-    scope.cleanup(drafts.subscribe(() => unavailable.paint()));
-    // The anchor goes in first, so the notice (inserted after it) leads the section once the anchor is mounted.
-    unavailable.paint();
-    return [unavailable.anchor, ...first];
+    return first;
 }

web/js/workspace/system-sources.mjs

@@ -35,7 +35,6 @@ import { createButton } from '../shared/toolkit/core.js';
 import { closeWorkspaceDialog, field, openContentDialog } from './workspace-dialogs.mjs';
 import { openMetadataScan } from './activity-scan.mjs';
 import { openThumbnailReview } from './thumbnail-review.mjs';
-import { locationBlock, noticeSlot } from './system-thumbnail-location.mjs';
 import { settingRow, operationRow } from './system-controls.mjs';
 import { HOST_UNAVAILABLE } from './system-appearance.mjs';
 import { showWorkspaceToast } from './toast.mjs';
@@ -235,19 +234,6 @@ export function mountSources(container, { api, activity, scope, drafts, notify =
         nodes.push(notice);
     }
 
-    // #320 D199: the unavailable thumbnail folder's notice, first on the page while it lasts.
-    const thumbnailLocation = () => drafts.get('host', 'thumbnail_location');
-    const location = locationBlock({ api, store: activity, scope, location: thumbnailLocation, notify });
-    const unavailable = noticeSlot({ api, scope, location: thumbnailLocation, notify, onChange: () => location.focus(),
-        onDone: () => drafts.reloadHost?.() });
-    const paintLocation = () => {
-        location.paint();
-        unavailable.paint();
-    };
-    scope.cleanup(drafts.subscribe(paintLocation));
-    nodes.push(unavailable.anchor);
-    paintLocation();
-
     const surface = el('section', undefined, 'surface');
     const heading = el('div', undefined, 'panel-heading');
     const addButton = createButton('+ Add source');
@@ -280,10 +266,7 @@ export function mountSources(container, { api, activity, scope, drafts, notify =
         operationRow({ scope, title: 'Enrich existing metadata', description: 'Resolve both prompts, deduplicate recipes, preserve uncertain links.',
             label: 'Review scan', onClick: scanAll }),
         operationRow({ scope, title: 'Thumbnail generation', description: 'Generate missing previews; rebuilding all is a separate explicit option.',
-            label: 'Review options', onClick: trigger => openThumbnailReview({ api, store: activity, scope, trigger,
-                location: thumbnailLocation() }) }),
-        // #320 D196: where previews are kept; never a draft (Move thumbnails is its only writer).
-        location.node,
+            label: 'Review options', onClick: trigger => openThumbnailReview({ api, store: activity, scope, trigger }) }),
         // D98: the legacy gallery's Refresh, which rereads every source's file list.
         operationRow({ scope, title: 'Refresh files', description: 'Read every source again to find files added or removed outside ComfyUI.',
             label: 'Refresh', onClick: refresh }));

web/js/workspace/system-thumbnail-location.mjs

@@ -1,412 +0,0 @@
-/**
- * Thumbnail location (#320, beyond the concept: D196–D199, approved static mock `320-mock`): where previews are kept.
- *
- * - D196 `locationBlock`: a `.setting-block` in System › Sources & scans after "Thumbnail generation": the radios
- *   "Inside each source" / "One folder", a "Folder path" field (enabled with One folder, prefilled with the folder in
- *   use or the server's `default_path`), the status line and "Review move…" (enabled when the choice differs from the
- *   location in use). Not a host draft: the Save row never saves it; the Move thumbnails job is the only writer (D4B).
- *   A refusal of the review shows in place under the field (`aria-invalid`), in the server's words.
- * - D197 `openMoveReview`: the shared review (Move library's shape) over the server's plan
- *   (`POST /images/thumbnails/plan`): From, To, Thumbnails, Free space, Too long for Windows, Removed after the move,
- *   Left in place, Links skipped; a folder that is not the default asks for the confirmation checkbox first. "Move
- *   thumbnails" starts the job (`POST /jobs/thumbnails {mode: "move", token, confirmed}`) and opens it in Activity.
- * - D199 `locationNotice`: while the thumbnail folder is unavailable, a `.notice` on Overview and Sources & scans
- *   says why, with "Recreate folder" (a missing folder, after a confirmation) or "Use this folder" (another folder's
- *   marker), and "Change location".
- *
- * The location comes from GET /settings' `thumbnail_location` (`{mode, path, default_path, available, problem,
- * cleanup_pending}`), read with the host settings.
- */
-import { createButton } from '../shared/toolkit/core.js';
-import { closeWorkspaceDialog, openContentDialog, openReviewDialog } from './workspace-dialogs.mjs';
-import { busyToast } from './activity-scan.mjs';
-import { showWorkspaceToast } from './toast.mjs';
-import { navigateTo } from './state.mjs';
-import { noun } from './plural.mjs';
-
-export const PLAN_URL = '/prompt_manager/images/thumbnails/plan';
-export const RECREATE_URL = '/prompt_manager/images/thumbnails/location/recreate';
-export const ADOPT_URL = '/prompt_manager/images/thumbnails/location/adopt';
-export const LOCATION_HINT = 'Where previews are kept. Originals are never moved. Avoid cloud-synced folders.';
-export const SENTENCE = 'Every thumbnail is copied and checked before Prompt Manager switches. Scans, deletes and '
-    + 'tagging wait until it finishes; closing this page does not stop it. Originals are never touched.';
-export const REVIEW_FAILED = 'The move could not be reviewed. Try again.';
-export const START_FAILED = 'Move thumbnails could not start. Try again.';
-export const NOTICE_TITLE = 'The thumbnail folder is unavailable';
-const BACK = 'Originals are shown and no thumbnails are written until it is back.';
-const CHECK = 'If its drive is unplugged, connect it; Prompt Manager checks again every few seconds.';
-
-const number = value => Number(value || 0).toLocaleString('en-US');
-const isFolder = location => location?.mode === 'folder';
-
-/** "1.2 GB" (binary units, one decimal, as the server writes them). */
-export function sizeText(bytes) {
-    let size = Number(bytes) || 0;
-    for (const unit of ['B', 'KB', 'MB', 'GB']) {
-        if (size < 1024 || unit === 'GB') return unit === 'B' ? `${size} B` : `${size.toFixed(1)} ${unit}`;
-        size /= 1024;
-    }
-    return `${size.toFixed(1)} GB`;
-}
-
-export const SUGGESTED = 'The suggested folder is next to your library; Review move… shows what happens before anything '
-    + 'is copied.';
-
-/** The status line under the row; `choice` (`{mode, path}`) adds the suggestion while the default folder is chosen. */
-export function statusText(location, choice = null) {
-    if (!location) return '';
-    if (!isFolder(location) && choice?.mode === 'folder' && location.default_path
-        && choice.path?.trim() === location.default_path) {
-        return `Now: inside each source. ${SUGGESTED}`;
-    }
-    let text = isFolder(location) ? `Now: one folder, ${location.path}` : 'Now: inside each source';
-    if (isFolder(location) && location.available === false) return `${text} · unavailable. Originals are shown.`;
-    text += '.';
-    if (isFolder(location) && location.path && location.path === location.default_path) {
-        text += ' Using the default folder next to your library.';
-    }
-    if (location.cleanup_pending > 0) {
-        text += ` Old thumbnails in ${number(location.cleanup_pending)} ${noun(location.cleanup_pending, 'place')} wait to `
-            + 'be removed until it is connected.';
-    }
-    return text;
-}
-
-/** Whether the row's choice (`{mode, path}`) differs from the location in use (Review move… enabled). */
-export function choiceChanged(location, choice) {
-    if (!location) return false;
-    if (choice.mode !== 'folder') return isFolder(location) || Boolean(location.problem);
-    const path = (choice.path || '').trim();
-    return Boolean(path) && (!isFolder(location) || path !== location.path);
-}
-
-/** The D197 review rows (`[term, value]`, a value may be `[lead, items]`) for the server's plan. */
-export function reviewRows(plan) {
-    const totals = plan.totals ?? {};
-    const sources = totals.sources ?? plan.sources?.length ?? 0;
-    const inside = `Inside each source (${number(sources)} ${noun(sources, 'source')})`;
-    const from = plan.from?.mode === 'folder' ? plan.from.path : inside;
-    let to = inside;
-    if (plan.to?.mode === 'folder') {
-        const state = plan.to.default ? (plan.to.will_create ? 'new, next to your library' : 'next to your library')
-            : (plan.to.will_create ? 'new folder' : 'empty folder');
-        to = `${plan.to.path} (${state})`;
-    }
-    const rows = [['From', from], ['To', to],
-        ['Thumbnails', `${number(totals.files)} in ${number(sources)} ${noun(sources, 'source')} · ${sizeText(totals.bytes)}`]];
-    if (Number.isFinite(plan.free_bytes)) rows.push(['Free space', `${sizeText(plan.free_bytes)} free`]);
-    if (totals.too_long > 0) {
-        const more = totals.too_long - (plan.too_long_listed?.length ?? 0);
-        rows.push(['Too long for Windows', [`${number(totals.too_long)} ${noun(totals.too_long, 'thumbnail')} cannot be `
-            + 'stored there. They show the original instead; choose a shorter folder to keep them.',
-        [...(plan.too_long_listed ?? []), ...(more > 0 ? [`and ${number(more)} more`] : [])]]]);
-    }
-    const removed = [];
-    if (totals.orphans > 0) removed.push(`${number(totals.orphans)} ${noun(totals.orphans, 'thumbnail')} whose original is gone`);
-    if (totals.temps > 0) removed.push(`${number(totals.temps)} unfinished temporary ${noun(totals.temps, 'file')}`);
-    for (const source of plan.unlisted ?? []) {
-        removed.push(`1 source no longer listed: ${number(source.files)} ${noun(source.files, 'thumbnail')} are removed; `
-            + 'they are made again if it returns');
-    }
-    const oldCopies = plan.from?.mode === 'folder'
-        ? 'The thumbnail folders of these sources inside it. The folder itself is removed once empty if Prompt Manager created it'
-        : 'The old copies in each source’s thumbnails folder';
-    rows.push(['Removed after the move', [removed.length ? `${oldCopies}, and:` : `${oldCopies}.`, removed]]);
-    if (totals.left_in_place > 0) {
-        rows.push(['Left in place', [`${number(totals.left_in_place)} ${noun(totals.left_in_place, 'file')} that `
-            + `${totals.left_in_place === 1 ? 'is' : 'are'} not ${totals.left_in_place === 1 ? 'a thumbnail' : 'thumbnails'}:`,
-        plan.left_listed ?? []]]);
-    }
-    if (totals.links > 0) {
-        rows.push(['Links skipped', `${number(totals.links)} ${noun(totals.links, 'link')} inside a thumbnails folder `
-            + `${totals.links === 1 ? 'is' : 'are'} not followed`]);
-    }
-    return rows;
-}
-
-/** The notice text for an unavailable `location` (D199). */
-export function noticeText(location) {
-    const where = location?.path || 'The thumbnail folder';
-    switch (location?.problem) {
-    case 'missing': return `${where} is missing. ${BACK} ${CHECK}`;
-    case 'unreachable': return `${where} can’t be reached. ${BACK} ${CHECK}`;
-    case 'marker-mismatch': return `${where} holds another thumbnail folder. ${BACK} Use it if it is yours, or change `
-        + 'the location.';
-    case 'invalid': return `The thumbnail location in config.json can’t be used. ${BACK} Change the location.`;
-    default: return `${where} is being checked. ${BACK}`;
-    }
-}
-
-function el(tag, text, className) {
-    const node = document.createElement(tag);
-    if (text !== undefined) node.textContent = text;
-    if (className) node.className = className;
-    return node;
-}
-
-function radio(value, label, hint) {
-    const node = el('label');
-    const input = el('input');
-    input.type = 'radio';
-    input.name = 'thumb-location';
-    input.value = value;
-    input.id = `loc-${value}`;
-    node.append(input, ` ${label} `, el('span', hint, 'small'));
-    return { node, input };
-}
-
-/** Start the move with the plan's `token`; opens it in Activity, or says why not. */
-export async function startMove({ store, scope, token, confirmed, notify = showWorkspaceToast, navigate = navigateTo,
-    onStale = null }) {
-    try {
-        const result = await store.start('thumbnails', { mode: 'move', token, confirmed });
-        if (scope.signal.aborted) return null;
-        if (result.busy !== undefined) {
-            notify(busyToast(result.busy));
-            return null;
-        }
-        navigate(`#/activity/${result.job.id}`);
-        return result.job;
-    } catch (error) {
-        if (scope.signal.aborted) return null;
-        // The sources or the location changed since the review: review again with what is there now.
-        if (error?.code === 'plan-stale' && onStale) {
-            onStale();
-            return null;
-        }
-        notify(typeof error?.code === 'string' && error.message ? error.message : START_FAILED);
-        return null;
-    }
-}
-
-/** Open the D197 review over `plan`; a plan the server refused for space keeps Move thumbnails unavailable. */
-export function openMoveReview({ scope, store, plan, refusal = null, trigger = null, notify, navigate, onStale = null }) {
-    const options = [];
-    let box = null;
-    if (plan.confirm_required && !refusal) {
-        const label = el('label', undefined, 'review-confirm');
-        box = el('input');
-        box.type = 'checkbox';
-        box.id = 'review-confirmed';
-        label.append(box, el('span', `Prompt Manager may create its own folders and a .promptmanager-thumbnails.json file in ${plan.to.path}.`));
-        options.push(label);
-    }
-    if (refusal) options.push(el('p', refusal, 'small review-refusal'));
-    const review = openReviewDialog({ scope, trigger, title: 'Move thumbnails', grid: reviewRows(plan), options,
-        sentence: refusal ? null : SENTENCE, cancelLabel: 'Cancel', primary: { label: 'Move thumbnails' },
-        onStart: () => { startMove({ store, scope, token: plan.token, confirmed: Boolean(box?.checked), notify, navigate,
-            onStale }); } });
-    const locked = () => Boolean(refusal) || (box !== null && !box.checked);
-    review.setPrimary({ label: 'Move thumbnails', disabled: locked() });
-    if (box) scope.listen(box, 'change', () => review.setPrimary({ label: 'Move thumbnails', disabled: locked() }));
-    return review;
-}
-
-/**
- * The D196 row; `location()` gives the server's `thumbnail_location` (undefined while read). Returns `{node, paint,
- * focus}`; `paint()` follows a new location.
- */
-export function locationBlock({ api, store, scope, location, notify = showWorkspaceToast, navigate = navigateTo }) {
-    const block = el('div', undefined, 'setting-block');
-    block.id = 'location-block';
-    const text = el('div', undefined, 'setting-block-text');
-    const label = el('span', 'Thumbnail location', 'setting-block-label');
-    label.id = 'location-label';
-    text.append(label, el('p', LOCATION_HINT));
-    const choice = el('div', undefined, 'location-choice');
-    choice.setAttribute('role', 'radiogroup');
-    choice.setAttribute('aria-labelledby', 'location-label');
-    const source = radio('source', 'Inside each source', '<source>/thumbnails');
-    const folder = radio('folder', 'One folder', 'one subfolder per source');
-    choice.append(source.node, folder.node);
-    const pathField = el('div', undefined, 'location-path field');
-    const pathLabel = el('label', 'Folder path');
-    pathLabel.htmlFor = 'location-path';
-    const input = el('input');
-    input.id = 'location-path';
-    input.autocomplete = 'off';
-    input.spellcheck = false;
-    const problem = el('p', '', 'small location-problem');
-    problem.id = 'location-problem';
-    problem.setAttribute('role', 'alert');
-    pathField.append(pathLabel, input, problem);
-    const status = el('p', '', 'small location-status');
-    status.id = 'location-status';
-    status.setAttribute('role', 'status');
-    const actions = el('div', undefined, 'row-actions');
-    const review = createButton('Review move…');
-    review.id = 'review-move';
-    actions.append(review);
-    block.append(text, choice, pathField, status, actions);
-
-    let shown;
-    const setProblem = message => {
-        problem.textContent = message || '';
-        pathField.setAttribute('aria-invalid', String(Boolean(message)));
-        // The field itself carries the state, so a screen reader announces it with the reason.
-        if (message) {
-            input.setAttribute('aria-invalid', 'true');
-            input.setAttribute('aria-describedby', 'location-problem');
-        } else {
-            input.removeAttribute('aria-invalid');
-            input.removeAttribute('aria-describedby');
-        }
-    };
-    const current = () => ({ mode: folder.input.checked ? 'folder' : 'source', path: input.value });
-    const repaintButton = () => {
-        const now = location();
-        input.disabled = !folder.input.checked || !now;
-        source.input.disabled = folder.input.disabled = !now;
-        const changed = choiceChanged(now, current());
-        status.textContent = now ? statusText(now, current()) : '';
-        review.setAttribute('aria-disabled', String(!changed));
-        review.classList.toggle('ca-primary', changed);
-    };
-    const paint = () => {
-        const now = location();
-        if (now && now !== shown) {
-            shown = now;
-            (isFolder(now) ? folder : source).input.checked = true;
-            input.value = (isFolder(now) ? now.path : now.default_path) || '';
-            setProblem(null);
-        }
-        repaintButton();
-    };
-    for (const control of [source.input, folder.input]) {
-        scope.listen(control, 'change', () => {
-            if (folder.input.checked && !input.value) input.value = location()?.default_path || '';
-            setProblem(null);
-            repaintButton();
-        });
-    }
-    scope.listen(input, 'input', () => { setProblem(null); repaintButton(); });
-    scope.listen(review, 'click', async () => {
-        if (review.getAttribute('aria-disabled') === 'true') return;
-        const chosen = current();
-        const body = { mode: 'move', location: chosen.mode === 'folder' ? { mode: 'folder', path: chosen.path.trim() }
-            : { mode: 'source' } };
-        review.setAttribute('aria-disabled', 'true');
-        try {
-            const plan = await api.post(PLAN_URL, body, { signal: scope.signal });
-            if (!scope.signal.aborted) {
-                openMoveReview({ scope, store, plan, trigger: review, notify, navigate, onStale: () => review.click() });
-            }
-        } catch (error) {
-            if (scope.signal.aborted) return;
-            if (error?.status === 507 && error?.plan) {
-                openMoveReview({ scope, store, plan: error.plan, refusal: error.plan.insufficient?.text || error.message,
-                    trigger: review });
-            } else if (error?.status === 409 && error?.code === 'busy') {
-                notify(busyToast(error.running ?? null));
-            } else if (typeof error?.code === 'string' && error.code.startsWith('location-') && error.message) {
-                setProblem(error.message);
-                input.focus();
-            } else {
-                notify(typeof error?.message === 'string' && error?.code ? error.message : REVIEW_FAILED);
-            }
-        } finally {
-            repaintButton();
-        }
-    });
-    paint();
-    return {
-        node: block,
-        paint,
-        focus() {
-            folder.input.checked = true;
-            repaintButton();
-            input.focus();
-            block.scrollIntoView?.({ block: 'center' });
-        },
-    };
-}
-
-/** Open the Recreate confirmation for `location`; resolves once it closed. */
-export function openRecreate({ api, scope, location, trigger = null, onDone, notify = showWorkspaceToast }) {
-    const grid = el('dl', undefined, 'meta-grid');
-    for (const [term, value] of [['Folder', location.path], ['Made', 'An empty folder with a new .promptmanager-thumbnails.json'],
-        ['Thumbnails', 'Made again as you browse, or with Thumbnail maintenance']]) {
-        const entry = el('div');
-        entry.append(el('dt', term), el('dd', value));
-        grid.append(entry);
-    }
-    const why = el('p', '', 'small location-problem');
-    const cancel = createButton('Cancel');
-    const go = createButton('Recreate folder', 'ca-primary');
-    const actions = el('div', undefined, 'dialog-actions');
-    actions.append(cancel, go);
-    scope.listen(cancel, 'click', () => closeWorkspaceDialog());
-    scope.listen(go, 'click', async () => {
-        try {
-            const result = await api.post(RECREATE_URL, {}, { signal: scope.signal });
-            if (scope.signal.aborted) return;
-            closeWorkspaceDialog();
-            onDone?.(result.location);
-        } catch (error) {
-            if (scope.signal.aborted) return;
-            why.textContent = error?.message || 'The folder could not be recreated.';
-            if (!error?.message) notify(why.textContent);
-        }
-    });
-    openContentDialog({ scope, title: 'Recreate the thumbnail folder?', trigger, nodes: [grid,
-        el('p', 'If the folder is on a drive that is not connected, connect it instead: recreating would put thumbnails on '
-            + 'another disk.', 'small'), why, actions] });
-}
-
-/**
- * The D199 notice for `location` (null while it is available): Recreate folder for a missing folder, Use this folder
- * for another folder's marker, and Change location (`onChange`).
- */
-export function locationNotice({ api, scope, location, onChange, onDone, notify = showWorkspaceToast }) {
-    if (!isFolder(location) || location.available !== false) return null;
-    const notice = el('div', undefined, 'notice');
-    notice.id = 'unavailable-notice';
-    const text = el('div');
-    text.append(el('h2', NOTICE_TITLE), el('p', noticeText(location)));
-    const actions = el('div', undefined, 'row-actions');
-    if (location.problem === 'missing') {
-        const recreate = createButton('Recreate folder');
-        scope.listen(recreate, 'click', () => openRecreate({ api, scope, location, trigger: recreate, onDone, notify }));
-        actions.append(recreate);
-    } else if (location.problem === 'marker-mismatch') {
-        const adopt = createButton('Use this folder');
-        scope.listen(adopt, 'click', async () => {
-            try {
-                const result = await api.post(ADOPT_URL, {}, { signal: scope.signal });
-                if (!scope.signal.aborted) onDone?.(result.location);
-            } catch (error) {
-                if (!scope.signal.aborted) notify(error?.message || 'The folder could not be used.');
-            }
-        });
-        actions.append(adopt);
-    }
-    const change = createButton('Change location', 'ca-primary');
-    scope.listen(change, 'click', () => onChange?.());
-    actions.append(change);
-    notice.append(text, actions);
-    return notice;
-}
-
-/**
- * Where a section shows the D199 notice: a comment `anchor` (no element, so the concept comparisons see nothing while the
- * folder is available) after which `paint()` keeps the notice for `location()`.
- */
-export function noticeSlot({ api, scope, location, onChange, onDone, notify = showWorkspaceToast }) {
-    const anchor = document.createComment('thumbnail-location-notice');
-    let shownFor;
-    let notice = null;
-    const paint = () => {
-        const now = location();
-        // Not mounted yet: the next paint (a microtask, or the next host read) places it.
-        if (!anchor.parentNode) {
-            queueMicrotask(() => { if (anchor.parentNode && !scope.signal.aborted) paint(); });
-            return;
-        }
-        if (now === shownFor) return;
-        shownFor = now;
-        notice?.remove();
-        notice = locationNotice({ api, scope, location: now, onChange, onDone, notify });
-        if (notice) anchor.after(notice);
-    };
-    return { anchor, paint };
-}

web/js/workspace/system.mjs

@@ -86,9 +86,7 @@ export function systemDrafts(api) {
                 api.get(LORA_STATUS_URL, { cache: 'no-store' }).catch(() => null)]);
             // The store reads a missing value as none and a missing revision as unreadable (no host save). #317: which
             // thumbnail formats the server can write rides along as a read-only value (never drafted or sent).
-            // #320: where previews live rides along the same way (read-only; only Move thumbnails changes it).
-            return { values: { ...result.settings, thumbnail_encoders: result.thumbnail_encoders,
-                thumbnail_location: result.thumbnail_location, ...(lora ? loraValues(lora) : {}) },
+            return { values: { ...result.settings, thumbnail_encoders: result.thumbnail_encoders, ...(lora ? loraValues(lora) : {}) },
                 revision: result.revision };
         },
         async writeHost(changes, { expected_revision }) {

web/js/workspace/thumbnail-review.mjs

@@ -23,7 +23,6 @@ import { busyToast } from './activity-scan.mjs';
 import { showWorkspaceToast } from './toast.mjs';
 import { navigateTo } from './state.mjs';
 import { noun } from './plural.mjs';
-import { sizeText } from './system-thumbnail-location.mjs';
 
 export const THUMBNAIL_PLAN_URL = '/prompt_manager/images/thumbnails/plan';
 export const THUMBNAILS_KIND = 'thumbnails';
@@ -34,9 +33,7 @@ export const PLAN_FAILED = 'The previews could not be counted.';
 export const START_FAILED = 'Thumbnail generation could not start. Try again.';
 export const SETTINGS_UNKNOWN = 'Previews follow the thumbnail settings in System › Appearance.';
 const FORMAT_LABELS = Object.freeze({ webp: 'WebP', jxl: 'JPEG XL', jpeg: 'JPEG' });
-// #320 D200: offered only while previews are kept in one folder (31A).
-export const PRUNE_OPTION = Object.freeze(['prune', 'Remove thumbnails of removed sources']);
-const MODES = new Set([...SCOPE_OPTIONS.map(([value]) => value), PRUNE_OPTION[0]]);
+const MODES = new Set(SCOPE_OPTIONS.map(([value]) => value));
 
 const count = value => value.toLocaleString('en-US');
 const isCount = value => Number.isSafeInteger(value) && value >= 0;
@@ -48,22 +45,8 @@ export function settingsText(plan) {
     return `Previews are written as ${label} · quality ${plan.quality} · ${count(plan.size)} px. Change this in System › Appearance.`;
 }
 
-/** D200: what a prune removes, in `plan.folder` (the thumbnail folder). */
-export function pruneText(plan) {
-    return `Only Prompt Manager’s thumbnails in their folders inside ${plan?.folder || 'the thumbnail folder'} are `
-        + 'removed. If a source comes back, its thumbnails are made again as you browse.';
-}
-
-/** D200: one `[key, "N thumbnails · size"]` per removed source of a prune plan. */
-export function pruneEntries(plan) {
-    const sources = Array.isArray(plan?.sources) ? plan.sources : [];
-    return sources.map(source => [source.key, `${count(source.files)} ${noun(source.files, 'thumbnail')} · `
-        + `${sizeText(source.bytes)}`]);
-}
-
 /** D99: the plan line for the server's `{mode, targets, fresh, remaining}`; an answer without counts failed. */
 export function planText(plan) {
-    if (plan?.mode === 'prune') return typeof plan.line === 'string' && plan.line ? plan.line : PLAN_FAILED;
     if (!plan || !MODES.has(plan.mode) || ![plan.targets, plan.fresh, plan.remaining].every(isCount)) {
         return PLAN_FAILED;
     }
@@ -118,18 +101,11 @@ function select(options, value) {
  * Activity store; `trigger` gets focus back when the dialog closes.
  */
 export function openThumbnailReview({ api, store, scope, trigger = null, mode: initial = 'missing', notify = showWorkspaceToast,
-    navigate = navigateTo, location = null }) {
-    const folderMode = location?.mode === 'folder';
-    const options = folderMode ? [...SCOPE_OPTIONS, PRUNE_OPTION] : SCOPE_OPTIONS;
-    const allowed = new Set(options.map(([value]) => value));
-    const mode = select(options, allowed.has(initial) ? initial : 'missing');
+    navigate = navigateTo }) {
+    const mode = select(SCOPE_OPTIONS, MODES.has(initial) ? initial : 'missing');
     const line = el('p', PLAN_LOADING, 'small');
     line.setAttribute('role', 'status');
     const settings = el('p', SETTINGS_UNKNOWN, 'small');
-    // D200: what the prune removes, under the plan line.
-    const pruneDetail = el('p', '', 'small');
-    const pruneGrid = el('dl', undefined, 'meta-grid');
-    pruneDetail.hidden = pruneGrid.hidden = true;
     const cancel = createButton('Cancel');
     const start = createButton('Start', 'ca-primary');
     const actions = el('div', undefined, 'dialog-actions');
@@ -149,20 +125,7 @@ export function openThumbnailReview({ api, store, scope, trigger = null, mode: i
         // A later choice painted its own line meanwhile, or the dialog closed.
         if (!open || scope.signal.aborted || mode.value !== chosen) return;
         line.textContent = planText(plan);
-        const prune = chosen === 'prune';
-        settings.hidden = prune;
-        const entries = pruneEntries(plan);
-        pruneDetail.hidden = pruneGrid.hidden = !prune || !entries.length;
-        if (prune) {
-            pruneDetail.textContent = pruneText(plan);
-            pruneGrid.replaceChildren(...entries.map(([key, text]) => {
-                const entry = el('div');
-                entry.append(el('dt', key), el('dd', text));
-                return entry;
-            }));
-        } else {
-            settings.textContent = settingsText(plan);
-        }
+        settings.textContent = settingsText(plan);
     }
 
     scope.listen(mode, 'change', paint);
@@ -173,7 +136,7 @@ export function openThumbnailReview({ api, store, scope, trigger = null, mode: i
         startThumbnails({ store, scope, options, notify, navigate });
     });
     openContentDialog({ scope, title: 'Thumbnail maintenance', trigger,
-        nodes: [field('Scope', mode, 'thumb-mode'), line, settings, ...(folderMode ? [pruneDetail, pruneGrid] : []), actions],
+        nodes: [field('Scope', mode, 'thumb-mode'), line, settings, actions],
         onClose: () => { open = false; } });
     paint();
 }

web/js/workspace/workspace-dialogs.mjs

@@ -460,13 +460,9 @@ export function backupNotice({ copy, onBackup }) {
     return notice;
 }
 
-/** A grid value: text, or (#320) `[lead, items]`, a lead sentence and the list under it. */
-const gridValue = value => typeof value === 'string' || (Array.isArray(value) && value.length === 2
-    && typeof value[0] === 'string' && Array.isArray(value[1]) && value[1].every(item => typeof item === 'string'));
-
 function requireGrid(grid) {
     if (!Array.isArray(grid) || grid.length === 0 || grid.some(row => !Array.isArray(row) || row.length !== 2 ||
-        typeof row[0] !== 'string' || !row[0] || !gridValue(row[1]))) {
+        typeof row[0] !== 'string' || !row[0] || typeof row[1] !== 'string')) {
         throw new TypeError('The review needs its [term, value] grid');
     }
 }
@@ -499,12 +495,7 @@ export function openReviewDialog({ scope, title, heading = null, grid, options =
         values.clear();
         list.replaceChildren(...rows.map(([term, value]) => {
             const entry = el('div');
-            const dd = el('dd', typeof value === 'string' ? value : value[0]);
-            if (typeof value !== 'string' && value[1].length) {
-                const items = el('ul', undefined, 'review-list');
-                items.append(...value[1].map(item => el('li', item)));
-                dd.append(items);
-            }
+            const dd = el('dd', value);
             values.set(term, dd);
             entry.append(el('dt', term), dd);
             return entry;

web/js/workspace/workspace.css

@@ -619,31 +619,3 @@ pre.prompt-text { font: inherit; font-size: 12px; line-height: 1.75; margin-bloc
 .review-panel { position: sticky; inset-block-start: 20px; }
 @media (max-width: 700px) { .review-panel { position: static; } }
 @media (min-width: 701px) and (max-height: 720px) { .review-panel { max-block-size: calc(100dvh - 40px); overflow: auto; } }
-
-/* #320 D196: Thumbnail location, a setting wider than a .setting-row column. */
-.setting-block { padding: 17px 0; border-top: 1px solid var(--line); display: grid; gap: 12px; }
-.setting-block-text .setting-block-label { font-size: 12px; font-weight: 500; display: block; }
-.setting-block-text p { font-size: 11px; color: var(--ca-muted); margin-top: 4px; max-width: 640px; }
-.location-choice { display: flex; flex-wrap: wrap; gap: 8px 24px; font-size: 12px; }
-.location-choice label { display: inline-flex; gap: 6px; align-items: baseline; }
-.location-choice .small { color: var(--ca-muted); }
-.location-path { max-width: 640px; margin: 0; }
-.location-path input { width: 100%; min-width: 0; font-family: var(--ca-mono, ui-monospace, monospace); font-size: 12px; }
-.location-path input:disabled { color: var(--ca-muted); }
-.location-path[aria-invalid="true"] input { border-color: var(--red); }
-.location-problem { color: var(--red); margin-top: 6px; }
-.location-problem:empty { display: none; }
-.location-status { margin: 0; overflow-wrap: anywhere; }
-.setting-block .row-actions { justify-content: flex-start; }
-
-/* #320 D197: the move review's lists and confirmation. */
-.review-list { margin: 4px 0 0; padding-inline-start: 18px; font-size: 11px; color: var(--ca-muted); }
-.review-list li { overflow-wrap: anywhere; }
-.review-confirm { display: flex; gap: 8px; align-items: flex-start; font-size: 12px; margin: 12px 0 0;
-    padding: 10px 12px; border: 1px solid var(--line); border-radius: 6px; background: var(--ca-field); }
-.review-confirm input { margin-top: 2px; flex-shrink: 0; }
-.review-refusal { color: var(--red); }
-
-@media (max-width: 700px) {
-    .location-choice { flex-direction: column; }
-}