POST /prompt_manager/system/library/move starts "Move library", an exclusive, non-cancellable job (database/library_move.py). It checks the target volume's free space, copies the database with SQLite's backup API from one read snapshot, verifies the copy (integrity check, every workflow document, the same rows in every table), copies the safety and pre-migration backups and config.json (owner-only, checked by size and SHA-256), then publishes under the old file's write lock and switches the live process (every PromptModel, the review and history observers, the API's plans and health report). The old prompts.db and config.json are renamed *.moved-to-<folder> only after the switch. A failure removes everything it wrote and leaves the old library in use; a marker in the new folder makes a restart after any crash pick the right library. GET /prompt_manager/system/library and the Overview's "location" say where the library lives and why; POST .../keep persists "Keep it here".
306 lines
12 KiB
Python
306 lines
12 KiB
Python
"""Library location routes (#249 S6b): where the library lives, Move, Keep.
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- ``GET /prompt_manager/system/library`` → ``{success, location}``: the
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database's path (relative to ComfyUI, as the statistics show it), why it is
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there (``source``: ``default``, ``environment``, ``config`` or
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``node_folder``), whether it can move and where to (``target``), the
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"Keep it here" choice (``keep``), whether to offer the move (``offer``:
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movable and not kept), a ``problem`` code and the database's size. The
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System Overview carries the same object as ``location``.
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- ``POST /prompt_manager/system/library/move`` → 202 ``{job}``: the
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``library_move`` job, ``exclusive`` (it runs alone and every other job,
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legacy-page operations included, is refused while it runs), not
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cancellable. It copies, verifies and switches the live library
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(``database/library_move.py``) and ends with one truthful line; a failure
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leaves the library in the node folder, unchanged. Refused before any job
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starts: 400 ``not-movable``/``same-folder``/``target-invalid``, 409
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``target-has-library``/``target-conflict``/``busy``, 507
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``insufficient-space``.
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- ``POST /prompt_manager/system/library/keep {keep: bool}`` persists
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``library.keep_in_node_folder`` through the config store and answers the
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new location.
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Errors are ``{success:false, code, error}`` and never name a path.
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"""
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import asyncio
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import functools
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import os
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from aiohttp import web
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from .job_routes import busy_response
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from .jobs import JobBusy
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try:
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from ...database import library_move as lm
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from ...database.operations import resolve_library_location
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from ...utils import library_location as ll
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except ImportError:
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from database import library_move as lm
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from database.operations import resolve_library_location
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from utils import library_location as ll
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LIBRARY_MOVE_JOB_KIND = "library_move"
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LIBRARY_MOVE_TITLE = "Move library"
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LIBRARY_MOVE_GROUPS = ("files", "errors")
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KEEP_BODY_MAX = 1024
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_REFUSAL_STATUS = {
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"not-movable": 400,
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"same-folder": 400,
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"target-invalid": 400,
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"target-has-library": 409,
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"target-conflict": 409,
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"insufficient-space": 507,
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}
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STILL_THERE = "The library is still in the node folder, unchanged."
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NOT_MOVED = "The library was not moved."
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OLD_LEFT = {
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"old-in-use": (
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"The old database is still open elsewhere, so it was left in the node "
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"folder; it is no longer used."
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),
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"old-locked": (
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"The old files could not be renamed, so they were left in the node "
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"folder; they are no longer used."
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),
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}
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def _failure(message, status, code):
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return web.json_response(
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{"success": False, "code": code, "error": message}, status=status
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)
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def _plural(count, one, many=None):
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return f"{count:,} {one if count == 1 else (many or one + 's')}"
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def _same_file(first, second):
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try:
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return os.path.samefile(first, second)
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except OSError:
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return os.path.normcase(os.path.realpath(first)) == os.path.normcase(
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os.path.realpath(second)
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)
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class LibraryLocationRoutesMixin:
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"""Mixin for the /prompt_manager/system/library endpoints."""
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# Replaced in tests with a resolver over a temp tree.
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_library_resolver = staticmethod(resolve_library_location)
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def _register_library_location_routes(self, routes):
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@routes.get("/prompt_manager/system/library")
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async def library_location_route(request):
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return await self.get_library_location(request)
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@routes.post("/prompt_manager/system/library/move")
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async def library_move_route(request):
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return await self.start_library_move(request)
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@routes.post("/prompt_manager/system/library/keep")
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async def library_keep_route(request):
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return await self.keep_library(request)
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# ── location ──────────────────────────────────────────────────────
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def _live_location(self):
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"""The resolved location, unless the live database is another file.
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A database the API was handed (tests, the browser fixture server) or
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one the resolver no longer names is reported as configured and is
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never moved.
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"""
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location = self._library_resolver()
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live = self.db.model.db_path
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if _same_file(location.db_path, live):
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return location
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return ll.LibraryLocation(
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ll.SOURCE_CONFIG,
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live,
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location.config_path,
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os.path.dirname(live),
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config_explicit=location.config_explicit,
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)
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def _location_payload(self, location):
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"""The public view of ``location`` (blocking: stats the database)."""
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from ..config import PromptManagerConfig
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keep = bool(PromptManagerConfig.KEEP_LIBRARY_IN_NODE_FOLDER)
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size = 0
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try:
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size = os.path.getsize(location.db_path)
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except OSError:
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pass
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return {
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"path": self._public_path(location.db_path),
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"source": location.source,
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"movable": location.movable,
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"keep": keep,
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"offer": location.movable and not keep,
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"target": (
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self._public_path(location.target_dir) if location.movable else None
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),
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"problem": location.problem,
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"size_bytes": size,
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}
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def _library_payload(self):
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return self._location_payload(self._live_location())
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async def get_library_location(self, request):
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try:
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payload = await self._run_in_executor(self._library_payload)
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except Exception:
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self.logger.exception("Library location could not be read")
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return _failure(
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"The library location could not be read.", 500, "location-failed"
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)
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return web.json_response(
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{"success": True, "location": payload},
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headers={"Cache-Control": "no-store"},
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)
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# ── move ──────────────────────────────────────────────────────────
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def _plan_library_move(self):
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"""The checked plan (blocking); raises MoveFailed."""
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plan = lm.plan_move(self._live_location())
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if lm.space_problem(plan) is not None:
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raise lm.MoveFailed("insufficient-space")
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return plan
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async def start_library_move(self, request):
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blocker = self._jobs.blocker(LIBRARY_MOVE_JOB_KIND, admission="exclusive")
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if blocker is not None:
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return busy_response(JobBusy(blocker))
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try:
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await self._run_in_executor(self._plan_library_move)
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except lm.MoveFailed as refused:
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status = _REFUSAL_STATUS.get(refused.code, 400)
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return _failure(refused.message, status, refused.code)
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except Exception:
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self.logger.exception("Move library could not be planned")
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return _failure(NOT_MOVED, 500, "move-failed")
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try:
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job = self._jobs.start(
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LIBRARY_MOVE_JOB_KIND,
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LIBRARY_MOVE_TITLE,
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admission="exclusive",
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cancellable=False,
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scope={},
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groups=LIBRARY_MOVE_GROUPS,
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runner=self._run_library_move,
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)
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except JobBusy as busy:
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return busy_response(busy)
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return web.json_response({"success": True, "job": job.summary()}, status=202)
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def _switch_library(self, old_db, location):
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"""Point the process and this API at the moved library (blocking)."""
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lm.switch_process(old_db, location)
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# Plans, health reports and history reads described the old file.
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self._database_replaced()
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self._history_read_fence = None
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async def _run_library_move(self, job):
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from ..config_store import _COMMIT_LOCK
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loop = asyncio.get_running_loop()
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def progress(line):
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def show():
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job.log_line(line)
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job.update(status_line=line)
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loop.call_soon_threadsafe(show)
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job.update(status_line="Checking the new folder")
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try:
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plan = await self._run_in_executor(self._plan_library_move)
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target = self._public_path(plan.target_dir)
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job.log_line(f"Moving the library to {target}")
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result = await self._run_in_executor(
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functools.partial(
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lm.move_library,
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plan,
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switch=self._switch_library,
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config_lock=_COMMIT_LOCK,
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progress=progress,
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)
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)
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except lm.MoveFailed as failed:
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self.logger.error(f"Move library failed: {failed.code}")
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tail = "" if failed.code == "switch-failed" else f" {STILL_THERE}"
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return self._fail_library_move(job, failed.code, failed.message + tail)
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except Exception:
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self.logger.exception("Move library failed")
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return self._fail_library_move(job, None, f"{NOT_MOVED} {STILL_THERE}")
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await asyncio.sleep(0) # the progress lines come first
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job.record_counted("files", len(result.files))
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line = (
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f"Moved the library to {target}: "
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f"{_plural(result.counts.get('prompts', 0), 'prompt')} and "
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f"{_plural(result.counts.get('generated_images', 0), 'image')} verified"
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)
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if result.retire_problem:
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line += ". " + OLD_LEFT.get(result.retire_problem, OLD_LEFT["old-locked"])
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elif result.renamed:
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line += (
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f". The old files were renamed {', '.join(result.renamed)}; "
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"nothing was deleted"
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)
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line += ". Logs move at the next restart."
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job.log_line(line)
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job.update(progress=100, status_line=line)
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@staticmethod
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def _fail_library_move(job, code, message):
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from .maintenance import _fail_job
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_fail_job(job, code, message)
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# ── keep it here ─────────────────────────────────────────────────
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async def keep_library(self, request):
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from ..config import PromptManagerConfig
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from ..config_store import get_config_store
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try:
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if (request.content_length or 0) > KEEP_BODY_MAX:
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raise ValueError("too large")
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data = await request.json()
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except Exception:
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data = None
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if not isinstance(data, dict) or not isinstance(data.get("keep"), bool):
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return _failure("keep must be true or false.", 400, "invalid-request")
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keep = data["keep"]
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def mutate(config):
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library = config.get("library")
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library = dict(library) if isinstance(library, dict) else {}
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library["keep_in_node_folder"] = keep
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config["library"] = library
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return config
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def publish(_config):
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PromptManagerConfig.KEEP_LIBRARY_IN_NODE_FOLDER = keep
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try:
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await self._run_in_executor(
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functools.partial(
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get_config_store().commit,
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mutate,
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expected_revision=None,
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publish=publish,
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)
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)
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except Exception as exc:
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return self._config_commit_failure(exc)
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return await self.get_library_location(request)
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