Files
JeyzerMC-comfyui-flakes/flake_io.py
T

1992 lines
81 KiB
Python

from __future__ import annotations
import base64
import hashlib
import itertools
import logging
import os
import re
import shutil
from dataclasses import dataclass, field
from typing import Any
import yaml
import folder_paths
from . import flake_families
def _resolve_model_name(category: str, stem_or_name: str) -> str:
available = folder_paths.get_filename_list(category)
available_norm = {p.replace("\\", "/"): p for p in available}
norm = stem_or_name.replace("\\", "/")
if norm in available_norm:
return available_norm[norm]
norm_stem = os.path.basename(os.path.splitext(norm)[0])
for cand_norm, candidate in available_norm.items():
cand_stem = os.path.basename(os.path.splitext(cand_norm)[0])
if cand_stem == norm_stem:
return candidate
return stem_or_name
# Parentheses allow the "<name> (imported)" names of installed bundles (#427).
_NAME_SEGMENT_RE = re.compile(r"^[A-Za-z0-9_\-() ]+$")
# Family routing tables. All derived from the flake_families registry (#355) —
# add a family there, not here.
_FAMILY_MAP = flake_families.FAMILY_MAP
_FAMILY_COMPAT = flake_families.FAMILY_COMPAT
_FAMILY_FROM_FOLDER = {v: k for k, v in _FAMILY_MAP.items()}
# Controlnet model names follow the `controlnet_<type>_<family>` convention;
# they resolve only if the user has matching files (LoRA support is family-
# agnostic and works regardless). Adjust flake_families.CN_TYPES if your models
# are named otherwise.
_CN_MODEL_MAP = flake_families.CN_MODEL_MAP
def infer_cn_model(cn_type: str, family_folder: str) -> str:
family_models = _CN_MODEL_MAP.get(family_folder, {})
return family_models.get(cn_type, "")
# Family folder (sdxl / illustrious / pony / common / zib / zit) → the
# subfolder under models/controlnet/ where that family's controlnets live.
# All SDXL-based families share the `sdxl/` folder; ZImage families share
# `zimage/`.
_CN_SUBFOLDER = flake_families.CN_SUBFOLDER
def _cn_norm(value: str) -> str:
"""Collapse a controlnet name to alphanumerics for fuzzy matching, so
``controlnet_scribble_sdxl`` and ``controlnet-scribble-sdxl-1.0`` compare
equal up to the version suffix."""
return re.sub(r"[^a-z0-9]", "", value.lower())
def resolve_cn_model_name(model_name: str, family_folder: str | None, category: str = "controlnet") -> str:
"""Resolve an inferred/explicit controlnet model name to an entry in
``folder_paths.get_filename_list(category)``, preferring the family's
controlnet subfolder (``models/controlnet/sdxl/`` for SDXL families).
Families whose ControlNets are model patches pass
``category="model_patches"`` (#364), so Anima resolves under
``models/model_patches/anima/`` and Z-Image under ``.../zimage/``.
Resolution order (#254):
1. Exact-stem or normalized match inside the target subfolder.
2. Fuzzy match inside the subfolder (handles dash/version-named files
such as ``controlnet-scribble-sdxl-1.0.safetensors``).
3. The generic global resolver (back-compat with flat layouts).
"""
if not model_name:
return model_name
available = folder_paths.get_filename_list(category)
subfolder = _CN_SUBFOLDER.get(family_folder or "")
if subfolder:
target_stem = os.path.basename(os.path.splitext(model_name)[0])
target_norm = _cn_norm(target_stem)
prefix = f"{subfolder}/"
exact: str | None = None
norm_eq: str | None = None
startswith: str | None = None
contains: str | None = None
for candidate in available:
cand_fwd = candidate.replace("\\", "/")
if not cand_fwd.lower().startswith(prefix):
continue
cand_stem = os.path.basename(os.path.splitext(cand_fwd)[0])
if cand_stem == target_stem and exact is None:
exact = candidate
break
cand_norm = _cn_norm(cand_stem)
if cand_norm == target_norm and norm_eq is None:
norm_eq = candidate
elif cand_norm.startswith(target_norm) and startswith is None:
startswith = candidate
elif target_norm and target_norm in cand_norm and contains is None:
contains = candidate
match = exact or norm_eq or startswith or contains
if match:
return match
# Fall back to the generic resolver (exact / global stem match) so flat
# `models/controlnet/` layouts keep working.
return _resolve_model_name(category, model_name)
# ---------------------------------------------------------------------------
# Preset dataclass
# ---------------------------------------------------------------------------
@dataclass
class ModelPreset:
name: str
display_name: str = ""
checkpoint: str = ""
checkpoint_url: str = ""
# Anima, Krea2 and Z-Image ship as a bare diffusion model plus a separate
# text encoder and VAE rather than an all-in-one checkpoint (#357). Set this
# instead of ``checkpoint`` and the loader takes the component path; both
# ``text_encoder`` and ``vae`` then become required.
diffusion_model: str | None = None
clip_skip: int = -2
vae: str | None = None
steps: int = 20
cfg: float = 4.0
sampler: str = "dpmpp_2m"
scheduler: str = "karras"
width: int = 832
height: int = 1216
text_encoder: str | None = None
# ``comfy.sd.CLIPType`` member name for a standalone text encoder, e.g.
# "LUMINA2" (Z-Image) or "KREA2". None falls back to the family's default.
clip_type: str | None = None
# ModelSamplingAuraFlow shift. None falls back to the family's default.
shift: float | None = None
positive: str = ""
negative: str = ""
embeddings: list[str] = field(default_factory=list)
filename_prefix: str = ""
# Applied whenever the preset is used, like a flake's own LoRAs and links.
loras: list[LoraEntry] = field(default_factory=list)
flake_links: list[FlakeLink] = field(default_factory=list)
@property
def model_source(self) -> tuple[str, str]:
"""``(category, path)`` for the model file this preset loads.
``diffusion_model`` wins over ``checkpoint`` when both are set. Raises a
readable error rather than letting an empty path reach the loader and
surface as a confusing FileNotFoundError (#357).
"""
if self.diffusion_model:
return "diffusion_models", self.diffusion_model
if self.checkpoint:
return "checkpoints", self.checkpoint
raise ValueError(
f"Preset '{self.name}' has neither a 'checkpoint' nor a "
f"'diffusion_model' set — pick a model file in the preset editor."
)
@dataclass
class AnimPreset:
"""Animate (image-to-video) preset, stored under
``model_presets/anim/<family folder>/``. Unset numbers fall back to the
family's defaults in ``flake_families.ANIM_FAMILIES``."""
name: str
family: str # ANIM_FAMILIES folder
steps: int
cfg: float
sampler: str
scheduler: str
clip_type: str
fps: int
duration: float
resolution: str
display_name: str = ""
filename_prefix: str = ""
# Wan 2.2 loads a high- and a low-noise model; MiniMax H3 a single one.
diffusion_model: str | None = None
diffusion_model_high: str | None = None
diffusion_model_low: str | None = None
text_encoder: str | None = None
vae: str | None = None
audio_vae: str | None = None
shift_high: float | None = None
shift_low: float | None = None
refiner_step: int | None = None
shift_video: float | None = None
shift_audio: float | None = None
positive: str = ""
negative: str = ""
loras: list[LoraEntry] = field(default_factory=list)
# ---------------------------------------------------------------------------
# Flake dataclass + ControlNetEntry
# ---------------------------------------------------------------------------
@dataclass
class ControlNetEntry:
type: str
model_name: str
image_name: str
strength: float = 1.0
start_percent: float = 0.0
end_percent: float = 1.0
resolution_from_image: bool = False
@dataclass
class ScheduleKeyframe:
"""Hook keyframe: ``strength`` multiplies from ``start`` (fraction of
denoising) until the next keyframe; 1.0 before the first one, as in core
``comfy.hooks.HookKeyframeGroup``."""
start: float
strength: float
@dataclass
class LoraEntry:
name: str = ""
url: str = ""
path: str = ""
strength: float = 1.0
schedule: list[ScheduleKeyframe] = field(default_factory=list)
# Wan 2.2 animate flakes: the low-noise file, applied at the same strength.
name_low: str = ""
path_low: str = ""
@dataclass
class PromptEntry:
positive: str = ""
negative: str = ""
schedule: list[ScheduleKeyframe] = field(default_factory=list)
@dataclass
class FlakeLink:
"""Reference to another flake with optional default overrides (#232).
Persisted on a flake yaml as ``flake_link``. When the host flake is
applied to a stack/combo, the linked flake's loras + prompts + variant
contributions are also applied (after the host's). Each grid placement
of the host can further override the linked flake's variant choices and
lora strengths via the entry's ``flake_link_override`` payload.
"""
target: str
variant: dict[str, str] = field(default_factory=dict)
lora_strengths: list[float | None] = field(default_factory=list)
# {group: {choice: [strength|None]}} for the target's choice LoRAs (#414).
variant_loras: dict[str, dict[str, list[float | None]]] = field(default_factory=dict)
# Multiplies into every LoRA and prompt the linked flake contributes.
schedule: list[ScheduleKeyframe] = field(default_factory=list)
# Set by resolve() on a variant choice's links: the grid item's
# variant_link_overrides slot, used instead of flake_link_overrides[i] (#420).
choice_override: dict[str, Any] | None = None
@dataclass
class Flake:
name: str
# Joined text of the unscheduled prompts; scheduled ones are kept apart.
positive: str = ""
negative: str = ""
scheduled_prompts: list[PromptEntry] = field(default_factory=list)
loras: list[LoraEntry] = field(default_factory=list)
lora_path: str | None = None # legacy single LoRA
strength: float = 1.0 # legacy single LoRA strength
resolution: tuple[int, int] | None = None
controlnets: list[ControlNetEntry] = field(default_factory=list)
variants: dict[str, dict[str, dict[str, str]]] = field(default_factory=dict)
output_stem: str | None = None
# Multiple flake links (#234). `flake_link` is kept as a convenience alias
# for the first link so older readers keep working.
flake_links: list[FlakeLink] = field(default_factory=list)
flake_link: FlakeLink | None = None
# ---------------------------------------------------------------------------
# Directory helpers
# ---------------------------------------------------------------------------
def _flakes_roots() -> list[str]:
roots, _ = folder_paths.folder_names_and_paths.get("flakes", ([], set()))
return list(roots)
def _primary_root() -> str:
roots = _flakes_roots()
if not roots:
raise RuntimeError("no flakes roots configured")
return roots[0]
def _presets_roots() -> list[str]:
roots, _ = folder_paths.folder_names_and_paths.get("model_presets", ([], set()))
return list(roots)
def _primary_presets_root() -> str:
roots = _presets_roots()
if not roots:
raise RuntimeError("no model_presets roots configured")
return roots[0]
def _validate_name(name: str) -> None:
if not isinstance(name, str) or not name:
raise ValueError("flake name is required")
if len(name) > 200:
raise ValueError("flake name too long (max 200 chars)")
if "\\" in name:
raise ValueError("backslashes are not allowed; use '/' as the separator")
if name.startswith("/") or name.endswith("/"):
raise ValueError("flake name cannot start or end with '/'")
for segment in name.split("/"):
if segment in ("", ".", ".."):
raise ValueError(f"invalid path segment: {segment!r}")
if not _NAME_SEGMENT_RE.match(segment):
raise ValueError(f"segment {segment!r} contains disallowed characters")
def _ensure_inside(path: str, root: str) -> None:
real_path = os.path.realpath(path)
real_root = os.path.realpath(root)
if os.path.commonpath([real_path, real_root]) != real_root:
raise ValueError("path resolves outside the flakes root")
def _family_folder(family: str | None) -> str | None:
return _FAMILY_MAP.get(family) if family else None
def _family_folder_from_name(name: str) -> str:
parts = name.replace("\\", "/").split("/")
if parts[0] == "img" and len(parts) >= 2 and parts[1] in _FAMILY_FROM_FOLDER:
return parts[1]
return "sdxl"
def infer_preset_family(path: str) -> str | None:
parts = path.replace("\\", "/").split("/")
if parts[0] == "img" and len(parts) >= 2 and parts[1] in _FAMILY_FROM_FOLDER:
return _FAMILY_FROM_FOLDER[parts[1]]
if len(parts) >= 2 and parts[0] in _FAMILY_FROM_FOLDER:
return _FAMILY_FROM_FOLDER[parts[0]]
return None
def strip_preset_prefix(path: str) -> str:
parts = path.replace("\\", "/").split("/")
if parts[0] == "img" and len(parts) >= 3 and parts[1] in _FAMILY_FROM_FOLDER:
return "/".join(parts[2:])
if len(parts) >= 2 and parts[0] in _FAMILY_FROM_FOLDER:
return "/".join(parts[1:])
return path
def _is_flake_compatible(path: str, family: str | None) -> bool:
if not family:
return True
compat = _FAMILY_COMPAT.get(family)
if not compat:
return True
parts = path.replace("\\", "/").split("/")
if parts[0] != "img":
# Legacy paths (no img/ prefix) are compatible with all SDXL families
return family.startswith("SDXL")
if len(parts) >= 2 and parts[1] in compat:
return True
return False
def _is_preset_compatible(path: str, family: str | None) -> bool:
if not family:
return True
compat = _FAMILY_COMPAT.get(family)
if not compat:
return True
parts = path.replace("\\", "/").split("/")
if not parts or parts[0] == "":
return True
if parts[0] == "img" and len(parts) >= 2:
return parts[1] in compat
if parts[0] in compat:
return True
return False
# ---------------------------------------------------------------------------
# Flake file resolution
# ---------------------------------------------------------------------------
def _resolve_file(name: str) -> str:
_validate_name(name)
for root in _flakes_roots():
for ext in (".yaml", ".yml"):
candidate = os.path.join(root, f"{name}{ext}")
if os.path.isfile(candidate):
_ensure_inside(candidate, root)
return candidate
raise FileNotFoundError(f"Flake '{name}' not found under any registered flakes/ directory")
# Top-level folders of a flakes root that never hold image flakes: the presets
# root nested under it and the animate flakes.
_NON_IMAGE_DIRS = ("model_presets", "anim")
def _in_listing(rel: str, family: str | None, kind: str) -> bool:
"""Whether flake path *rel* belongs to a ``kind`` listing: "img" (outside
``_NON_IMAGE_DIRS``, filtered by family) or "anim" (``anim/``, narrowed to
``anim/<folder>/`` by an animate ``family``)."""
if kind == "anim":
return rel.startswith(f"anim/{_anim_family_folder(family)}/" if family else "anim/")
return rel.split("/", 1)[0] not in _NON_IMAGE_DIRS and (family is None or _is_flake_compatible(rel, family))
def list_flakes(family: str | None = None, roots: list[str] | None = None, kind: str = "img") -> list[str]:
names: set[str] = set()
for root in roots or _flakes_roots():
if not os.path.isdir(root):
continue
for dirpath, _, filenames in os.walk(root):
for fn in filenames:
stem, ext = os.path.splitext(fn)
if ext.lower() not in (".yaml", ".yml"):
continue
rel_dir = os.path.relpath(dirpath, root)
rel = stem if rel_dir in ("", ".") else os.path.join(rel_dir, stem)
rel_norm = rel.replace(os.sep, "/")
if _in_listing(rel_norm, family, kind):
names.add(rel_norm)
return sorted(names)
def list_flake_display_names(family: str | None = None, kind: str = "img") -> dict[str, str]:
names = list_flakes(family=family, kind=kind)
display_names: dict[str, str] = {}
for name in names:
try:
raw = read_flake_raw(name)
dn = raw.get("name") or ""
if dn:
display_names[name] = dn
except Exception:
pass
return display_names
def list_flake_tag_names(family: str | None = None, kind: str = "img") -> dict[str, list[str]]:
"""Map of flake name -> tag-name LoRA names to surface on the flake item.
Lets the Load picker show the same tag line as the grid (#297) without each
item fetching its full flake. Only flakes with at least one tag-name LoRA
appear in the result.
"""
result: dict[str, list[str]] = {}
for name in list_flakes(family=family, kind=kind):
try:
raw = read_flake_raw(name)
except Exception:
continue
loras = raw.get("loras")
if not isinstance(loras, list):
continue
tags = [
str(lora.get("name")).strip()
for lora in loras
if isinstance(lora, dict) and lora.get("tag_name") and str(lora.get("name") or "").strip()
]
if tags:
result[name] = tags
return result
def list_flake_favorites(family: str | None = None, kind: str = "img") -> list[str]:
"""Names of flakes saved with ``favorite: true`` (#402)."""
result: list[str] = []
for name in list_flakes(family=family, kind=kind):
try:
raw = read_flake_raw(name)
except Exception:
continue
if raw.get("favorite"):
result.append(name)
return result
def list_folder_covers(names: list[str], dirs: list[str], favorites: list[str]) -> dict[str, str]:
"""Map of folder -> flake whose cover the Load picker shows on its tile
(#424): the first favorite directly inside, else the first flake directly
inside, else the first subfolder's. Only flakes with a cover count."""
by_folder: dict[str, list[str]] = {}
for name in names:
by_folder.setdefault(name.rpartition("/")[0], []).append(name)
subs: dict[str, list[str]] = {}
for d in dirs:
subs.setdefault(d.rpartition("/")[0], []).append(d)
fav = set(favorites)
covers: dict[str, str] = {}
def cover(folder: str) -> str | None:
if folder not in covers:
direct = sorted(by_folder.get(folder, []), key=lambda n: (n not in fav, n.lower()))
covers[folder] = next((n for n in direct if read_cover(n)), None) or next(
(c for sub in sorted(subs.get(folder, []), key=str.lower) if (c := cover(sub))), None)
return covers[folder]
return {d: c for d in dirs if (c := cover(d))}
def list_series(family: str | None = None, kind: str = "img") -> list[str]:
"""Distinct, non-empty `serie` values across flakes (sorted)."""
series: set[str] = set()
for name in list_flakes(family=family, kind=kind):
try:
raw = read_flake_raw(name)
except Exception:
continue
value = raw.get("serie")
if isinstance(value, str) and value.strip():
series.add(value.strip())
return sorted(series)
def list_dirs(family: str | None = None, roots: list[str] | None = None, kind: str = "img") -> list[str]:
dirs: set[str] = set()
for root in roots or _flakes_roots():
if not os.path.isdir(root):
continue
for dirpath, dirnames, filenames in os.walk(root):
# Skip folders owned by a sibling flake yaml (`X/` next to `X.yaml`).
dirnames[:] = [d for d in dirnames if f"{d}.yaml" not in filenames and f"{d}.yml" not in filenames]
for d in dirnames:
full = os.path.join(dirpath, d)
rel = os.path.relpath(full, root).replace(os.sep, "/")
if _in_listing(rel + "/dummy", family, kind):
dirs.add(rel)
return sorted(dirs)
# ---------------------------------------------------------------------------
# Flake CRUD
# ---------------------------------------------------------------------------
def _find_flake_root_index(name: str) -> int:
_validate_name(name)
roots = _flakes_roots()
for idx, root in enumerate(roots):
for ext in (".yaml", ".yml"):
candidate = os.path.join(root, f"{name}{ext}")
if os.path.isfile(candidate):
_ensure_inside(candidate, root)
return idx
raise FileNotFoundError(f"Flake '{name}' not found under any registered flakes/ directory")
def read_flake_raw(name: str) -> dict[str, Any]:
path = _resolve_file(name)
with open(path, encoding="utf-8") as f:
data = yaml.safe_load(f) or {}
# Hide stray top-level `path` / `strength` from callers when the modern
# `loras:` list is present; they are leftover from an old save bug.
if isinstance(data, dict) and "loras" in data:
data.pop("path", None)
data.pop("strength", None)
return data
def save_flake(
name: str,
data: dict[str, Any],
family: str | None = None,
base_root_index: int | None = None,
output_path: str | None = None,
old_name: str | None = None,
kind: str = "img",
) -> str:
"""Persist ``data`` to ``<root>/<name>.yaml`` and return the resolved name
that callers should use to reference the flake.
See :func:`save_preset` for the role of ``base_root_index`` /
``output_path`` / ``old_name`` / ``kind``; unlike presets, ``output_path``
is the full name, prefix included.
"""
if not isinstance(data, dict):
raise ValueError("flake data must be an object")
# Drop stray top-level `path` / `strength` keys that leaked from a previous
# single-LoRA representation. They are redundant with `loras[].path/strength`.
if "loras" in data:
data.pop("path", None)
data.pop("strength", None)
# Migrate legacy `options:` key to `variants:` (one-way; reads remain
# backwards compatible via _flake_from_raw).
if "options" in data and "variants" not in data:
data["variants"] = data.pop("options")
roots = _flakes_roots()
if base_root_index is not None:
if base_root_index < 0 or base_root_index >= len(roots):
raise ValueError(f"invalid base_root_index: {base_root_index}")
root = roots[base_root_index]
else:
root = _primary_root()
if output_path:
canonical = output_path.replace("\\", "/").strip("/")
_validate_name(canonical)
else:
_validate_name(name)
folder = _anim_family_folder(family) if kind == "anim" else _family_folder(family)
if folder and not name.startswith(f"{kind}/{folder}/"):
canonical = f"{kind}/{folder}/{name}"
else:
canonical = name
target = os.path.join(root, f"{canonical}.yaml")
_ensure_inside(target, root)
target_real = os.path.realpath(target)
os.makedirs(os.path.dirname(target), exist_ok=True)
# Clean up any copies of the same canonical name in other roots to prevent
# double-save (both base and extra path) and edits-lost-on-reload bugs (#242).
for other_root in roots:
other_path = os.path.realpath(os.path.join(other_root, f"{canonical}.yaml"))
if other_path == target_real:
continue
if os.path.isfile(other_path):
try:
os.remove(other_path)
print(f"[flakes] removed duplicate yaml: {other_path}")
except OSError:
pass
for ext in _COVER_EXTENSIONS:
cover_path = os.path.realpath(os.path.join(other_root, f"{canonical}{ext}"))
if cover_path != target_real and os.path.isfile(cover_path):
try:
os.remove(cover_path)
except OSError:
pass
# Move existing files if the location changed (old_name handles renames
# or moves between roots — canonical stays the same but root may differ).
if old_name:
try:
old_yaml = _resolve_file(old_name)
except (FileNotFoundError, ValueError):
old_yaml = None
if old_yaml and os.path.realpath(old_yaml) != target_real:
try:
os.remove(old_yaml)
except OSError:
pass
old_cover = _cover_path(old_name, legacy_only=True)
if old_cover:
cover_ext = os.path.splitext(old_cover)[1].lower()
new_cover_dir = os.path.dirname(target)
new_cover = os.path.join(new_cover_dir, f"{os.path.basename(canonical)}{cover_ext}")
try:
os.replace(old_cover, new_cover)
except OSError:
pass
# The owned folder follows the yaml; its `./<old_base>/` references
# and owned cover take the new base name.
old_base = old_name.rsplit("/", 1)[-1]
new_base = os.path.basename(canonical)
old_owned = os.path.join(os.path.dirname(old_yaml), old_base)
owned = os.path.join(os.path.dirname(target), new_base)
if os.path.isdir(old_owned) and not os.path.exists(owned):
try:
_move_file(old_owned, owned)
data = _rewrite_prefix(data, f"./{old_base}/", f"./{new_base}/")
for ext in _COVER_EXTENSIONS:
if old_base != new_base and os.path.isfile(os.path.join(owned, old_base + ext)):
os.replace(os.path.join(owned, old_base + ext), os.path.join(owned, new_base + ext))
except OSError as exc:
logging.warning("[flakes] could not move %s to %s: %s", old_owned, owned, exc)
_take_ownership(data, target)
with open(target, "w", encoding="utf-8") as f:
yaml.safe_dump(data, f, sort_keys=False, allow_unicode=True)
return canonical
_CN_BATCH_RE = re.compile(r"^(.+)_\d+_[^_]+$")
def _file_safe(value: Any) -> str:
return re.sub(r"[^A-Za-z0-9_\-]+", "_", str(value or "")).strip("_")
def _move_file(src: str, dest: str) -> None:
"""Move *src* (file or folder) to *dest*; copy it, keeping the origin, when
*dest* is on another device."""
os.makedirs(os.path.dirname(dest), exist_ok=True)
if os.stat(src).st_dev == os.stat(os.path.dirname(dest)).st_dev:
os.replace(src, dest)
elif os.path.isdir(src):
shutil.copytree(src, dest)
else:
shutil.copy2(src, dest)
def _rewrite_prefix(value: Any, old: str, new: str) -> Any:
if isinstance(value, dict):
return {k: _rewrite_prefix(v, old, new) for k, v in value.items()}
if isinstance(value, list):
return [_rewrite_prefix(v, old, new) for v in value]
if isinstance(value, str) and value.startswith(old):
return new + value[len(old):]
return value
def _cn_batch(path: str) -> list[str]:
"""*path* plus the files beside it from the same ControlNet batch: stems
``<prefix>_<n>_<token>`` sharing the selected image's ``<prefix>``."""
match = _CN_BATCH_RE.match(os.path.splitext(os.path.basename(path))[0])
if not match:
return [path]
folder = os.path.dirname(path)
batch = []
for fn in os.listdir(folder):
stem, ext = os.path.splitext(fn)
other = _CN_BATCH_RE.match(stem)
if other and other.group(1) == match.group(1) and ext.lower() in _COVER_MIME_MAP and os.path.isfile(os.path.join(folder, fn)):
batch.append(os.path.join(folder, fn))
return batch
def _external_image(value: Any, moved: dict[str, str]) -> str | None:
"""Absolute path of the image a non-``./`` *value* refers to: input-relative
(extension optional, like ``_load_cn_image``), absolute, or under the LoRA
tree. Files already in *moved* count as existing. Only files inside the
folders the editor's picker browses qualify (input, output, models, flakes
and LoRA folders), since *value* comes from the client and the file gets
moved."""
if not isinstance(value, str) or not value or value.startswith("./"):
return None
input_dir = folder_paths.get_input_directory()
roots = picker_roots()
direct = os.path.join(input_dir, value)
# get_full_path takes names only: an absolute path on another drive than
# the current one makes it raise (os.path.relpath across mounts).
lora_tree = None if os.path.isabs(value) else folder_paths.get_full_path("loras", value)
for path in (direct, *(direct + e for e in (".png", ".jpg", ".jpeg", ".webp")), lora_tree):
if not path or os.path.splitext(path)[1].lower() not in _COVER_MIME_MAP:
continue
path = os.path.abspath(path)
if not any(_is_inside(path, root) for root in roots):
continue
if os.path.isfile(path) or os.path.normcase(path) in moved:
return path
return None
def picker_roots() -> list[str]:
"""Folders the editor's file picker browses: input, output and every model
folder, extra model paths included."""
roots = [folder_paths.get_input_directory(), folder_paths.get_output_directory(), folder_paths.models_dir]
for category in folder_paths.folder_names_and_paths:
if category != "custom_nodes":
roots += folder_paths.get_folder_paths(category)
return roots
def _is_inside(path: str, root: str) -> bool:
try:
_ensure_inside(path, root)
except ValueError: # outside, or on another drive
return False
return True
def _take_ownership(data: dict[str, Any], target: str) -> None:
"""Move the external files *data* references (LoRAs + sidecars, ControlNet
image batches, variant images, the cover) into the flake's owned folder
``<dirname(target)>/<base>`` and rewrite them to ``./<base>/...`` (#392).
Files already inside the owned folder are referenced in place (#396).
Flake links, ``./`` values and missing files are left alone."""
flake_dir = os.path.dirname(target)
base = os.path.splitext(os.path.basename(target))[0]
owned = os.path.join(flake_dir, base)
def dot_ref(path: str) -> str:
# Resolved on both sides: a picked path may reach the flakes folder
# through a junction or another drive letter than flake_dir.
return "./" + os.path.relpath(os.path.realpath(path), os.path.realpath(flake_dir)).replace(os.sep, "/")
moved: dict[str, str] = {}
lora_refs: dict[str, str] = {}
lora_stems: set[str] = set()
def own(src: str, dest: str) -> str | None:
"""Move *src* to *dest* once; its ``./`` reference, or None on failure."""
key = os.path.normcase(src)
if key not in moved and _is_inside(src, owned):
moved[key] = src
if key not in moved:
try:
_move_file(src, dest)
except OSError as exc:
logging.warning("[flakes] could not move %s into %s: %s", src, owned, exc)
return None
moved[key] = dest
return dot_ref(moved[key])
def own_lora(path: Any, display: Any) -> Any:
if not isinstance(path, str) or not path or path.startswith("./"):
return path
if path in lora_refs:
return lora_refs[path]
src = folder_paths.get_full_path("loras", _resolve_model_name("loras", path))
if not src or not os.path.isfile(src):
return path
src = os.path.abspath(src)
src_dir, src_name = os.path.split(src)
src_stem, ext = os.path.splitext(src_name)
stem = f"{base}_{_file_safe(display)}" if _file_safe(display) else base
new_stem, n = stem, 1
while new_stem in lora_stems or os.path.exists(os.path.join(owned, new_stem + ext)):
n += 1
new_stem = f"{stem}_{n}"
lora_stems.add(new_stem)
# Sidecars (previews, .civitai.info, .json) follow under the new stem.
for fn in os.listdir(src_dir):
if fn.startswith(src_stem + ".") and not fn.endswith(ext):
own(os.path.join(src_dir, fn), os.path.join(owned, new_stem + fn[len(src_stem):]))
ref = own(src, os.path.join(owned, new_stem + ext))
if ref:
lora_refs[path] = ref
return ref or path
def own_entries(loras: Any, cns: Any) -> None:
for lora in loras if isinstance(loras, list) else ():
if isinstance(lora, dict):
lora["path"] = own_lora(lora.get("path"), lora.get("name"))
if "path_low" in lora:
lora["path_low"] = own_lora(lora["path_low"], lora.get("name_low") or f"{lora.get('name') or ''}_low")
for cn in cns if isinstance(cns, list) else ():
src = _external_image(cn.get("image"), moved) if isinstance(cn, dict) else None
if not src:
continue
if os.path.isfile(src):
for f in _cn_batch(src):
if f != src:
own(f, os.path.join(owned, "cnets", os.path.basename(f)))
cn["image"] = own(src, os.path.join(owned, "cnets", os.path.basename(src))) or cn["image"]
# Resolved before anything moves: the cover may be a LoRA preview or a CN
# batch image that is about to land in the owned folder.
cover_src = _external_image(data.get("cover_image"), moved)
if "cover_image" not in data and not any(os.path.isfile(os.path.join(owned, base + e)) for e in _COVER_EXTENSIONS):
cover_src = next((p for e in _COVER_EXTENSIONS if os.path.isfile(p := os.path.join(flake_dir, base + e))), None)
own_entries(data.get("loras"), data.get("controlnets"))
if "loras" not in data and data.get("path"):
data["path"] = own_lora(data["path"], None)
variants = data.get("variants")
for group, choices in variants.items() if isinstance(variants, dict) else ():
for choice, choice_data in choices.items() if isinstance(choices, dict) else ():
if not isinstance(choice_data, dict):
continue
own_entries(choice_data.get("loras"), choice_data.get("controlnets"))
src = _external_image(choice_data.get("image"), moved)
if src:
dest = os.path.join(owned, f"{base}_{_file_safe(group)}_{_file_safe(choice)}{os.path.splitext(src)[1]}")
choice_data["image"] = own(src, dest) or choice_data["image"]
# A cover already in the owned folder (e.g. a moved CN batch's `_cover`
# image) stays where it is and is referenced; others become <base><ext>.
if cover_src:
src = moved.get(os.path.normcase(cover_src), cover_src)
in_place = _is_inside(src, owned)
dest = src if in_place else os.path.join(owned, base + os.path.splitext(src)[1].lower())
try:
if in_place:
data["cover_image"] = dot_ref(src)
else:
_move_file(src, dest)
data.pop("cover_image", None)
for e in _COVER_EXTENSIONS:
for old in (os.path.join(owned, base + e), os.path.join(flake_dir, base + e)):
if os.path.normcase(old) != os.path.normcase(dest) and os.path.isfile(old):
os.remove(old)
except OSError as exc:
logging.warning("[flakes] could not move cover %s into %s: %s", src, owned, exc)
def delete_flake(name: str) -> None:
path = _resolve_file(name)
os.remove(path)
# The owned `<name>/` folder (and the cover inside it) is kept.
_delete_cover(name, legacy_only=True)
_IMPORT_KEYS = ("name", "prompt", "prompts", "output_stem", "flake_type", "serie")
_IMPORT_CHOICE_KEYS = ("positive", "negative", "output_stem", "image", "default")
def import_anim_flake(source: str, family: str) -> str:
"""Copy image flake *source* into animate *family* as
``anim/<folder>/<source path minus img/<folder>/>`` (then " (2)", ...) and
return the new name (#433). Its name, prompts, output stem, type, serie,
variant choice prompts/stems/defaults, cover and choice images come along;
LoRAs, ControlNets, flake links and resolution belong to the image model
and don't. Files are copied into the new owned folder, so the source stays
intact."""
raw = read_flake_raw(source)
parts = source.split("/")
rel = "/".join(parts[2:]) if parts[0] == "img" and len(parts) > 2 else source
stem = f"anim/{_anim_family_folder(family)}/{rel}"
root = _primary_root()
taken = set(list_flakes(kind="anim"))
# A deleted flake keeps its owned folder: don't copy into it.
name = next(n for n in itertools.chain([stem], (f"{stem} ({i})" for i in itertools.count(2)))
if n not in taken and not os.path.exists(os.path.join(root, n)))
base = name.rsplit("/", 1)[-1]
owned = os.path.join(root, name)
def src_file(value: Any) -> str | None:
path = _owned_file_path(value, source) if isinstance(value, str) and value.startswith("./") else _external_image(value, {})
return path if path and os.path.isfile(path) else None
def copy(src: str, dest_stem: str) -> str:
os.makedirs(owned, exist_ok=True)
dest = os.path.join(owned, dest_stem + os.path.splitext(src)[1].lower())
shutil.copy2(src, dest)
return f"./{base}/{os.path.basename(dest)}"
def import_choice(group: str, choice: str, choice_data: dict[str, Any]) -> dict[str, Any]:
kept = {k: choice_data[k] for k in _IMPORT_CHOICE_KEYS if k in choice_data}
image = src_file(kept.pop("image", None))
if image:
kept["image"] = copy(image, f"{base}_{_file_safe(group)}_{_file_safe(choice)}")
return kept
data = {k: raw[k] for k in _IMPORT_KEYS if k in raw}
variants = raw.get("variants") or raw.get("options")
if variants:
data["variants"] = {
group: {choice: import_choice(group, choice, c) for choice, c in choices.items()}
for group, choices in variants.items()
}
cover = _cover_path(source) or src_file(raw.get("cover_image"))
if cover:
copy(cover, base)
return save_flake(name, data, family=family, kind="anim")
def _parse_schedule(raw: Any) -> list[ScheduleKeyframe]:
"""Parse a `schedule:` keyframe list, sorted by start with start clamped to
[0, 1]. A repeated start keeps the last keyframe."""
by_start: dict[float, float] = {}
if isinstance(raw, list):
for kf in raw:
if isinstance(kf, dict):
start = min(max(float(kf.get("start", 0.0)), 0.0), 1.0)
by_start[start] = float(kf.get("strength", 1.0))
return [ScheduleKeyframe(start, by_start[start]) for start in sorted(by_start)]
def schedule_strength(schedule: list[ScheduleKeyframe], t: float) -> float:
strength = 1.0
for kf in schedule:
if kf.start > t:
break
strength = kf.strength
return strength
def multiply_schedules(a: list[ScheduleKeyframe], b: list[ScheduleKeyframe]) -> list[ScheduleKeyframe]:
"""Piecewise product of two schedules; an empty schedule is the identity."""
if not a or not b:
return list(a or b)
starts = sorted({kf.start for kf in a} | {kf.start for kf in b})
return [ScheduleKeyframe(t, schedule_strength(a, t) * schedule_strength(b, t)) for t in starts]
def _join_prompt_text(parts) -> str:
return ", ".join(p for p in parts if p)
def _parse_prompt_list(raw: dict[str, Any]) -> list["PromptEntry"]:
"""Parse `prompts:` (list) or legacy `prompt:` (dict) from a flake body."""
raw_prompts = raw.get("prompts")
if not isinstance(raw_prompts, list):
raw_prompts = [raw.get("prompt") or {}]
return [
PromptEntry(
positive=str(p.get("positive", "") or ""),
negative=str(p.get("negative", "") or ""),
schedule=_parse_schedule(p.get("schedule")),
)
for p in raw_prompts if isinstance(p, dict)
]
def _owned_file_path(value: str, name: str | None) -> str:
"""A ``./x`` value of flake *name* → absolute path under the yaml's
directory. Other values, presets (no name) and inline flakes are unchanged."""
if not name or name == "__inline__" or not value.startswith("./"):
return value
return os.path.normpath(os.path.join(os.path.dirname(_resolve_file(name)), value[2:]))
def _parse_lora_list(raw_loras: Any, name: str | None = None) -> list["LoraEntry"]:
"""Parse a `loras:` list into LoraEntry objects. Shared by the flake body and
by variant-choice contributions (#299)."""
out: list[LoraEntry] = []
if isinstance(raw_loras, list):
for lr in raw_loras:
if not isinstance(lr, dict):
continue
out.append(LoraEntry(
name=str(lr.get("name", "")),
url=str(lr.get("url", "")),
path=_owned_file_path(str(lr.get("path", "")), name),
strength=float(lr.get("strength", 1.0)),
schedule=_parse_schedule(lr.get("schedule")),
name_low=str(lr.get("name_low", "")),
path_low=_owned_file_path(str(lr.get("path_low", "")), name),
))
return out
def _parse_cn_list(raw_cns: Any, name: str) -> list["ControlNetEntry"]:
"""Parse a `controlnets:` list into ControlNetEntry objects, inferring the
model from the type when omitted. Shared by the flake body and variant
choices (#299)."""
out: list[ControlNetEntry] = []
for cn in raw_cns or []:
if not isinstance(cn, dict):
continue
model_name = str(cn.get("model", ""))
cn_type = str(cn.get("type", ""))
if not model_name.strip() and cn_type:
model_name = infer_cn_model(cn_type, _family_folder_from_name(name)) or ""
if not model_name.strip():
print(f"[flakes] skipping controlnet entry with empty model_name (type={cn_type})")
continue
out.append(ControlNetEntry(
type=cn_type,
model_name=model_name,
image_name=_owned_file_path(str(cn.get("image", "")), name),
strength=float(cn.get("strength", 1.0)),
start_percent=float(cn.get("start_percent", 0.0)),
end_percent=float(cn.get("end_percent", 1.0)),
resolution_from_image=bool(cn.get("resolution_from_image", False)),
))
return out
def _parse_link_list(raw: dict[str, Any]) -> list["FlakeLink"]:
"""Parse `flake_links:` (list) or legacy `flake_link:` (dict) from any mapping
— the flake body or a variant choice (#234/#299)."""
def _one(d: dict[str, Any]) -> FlakeLink:
return FlakeLink(
target=str(d["target"]),
variant={str(g): str(c) for g, c in (d.get("variant") or {}).items() if c},
lora_strengths=[
(float(s) if isinstance(s, (int, float)) else None)
for s in (d.get("lora_strengths") or [])
],
variant_loras={
str(g): {
str(c): [(float(s) if isinstance(s, (int, float)) else None) for s in slots]
for c, slots in choices.items() if isinstance(slots, list)
}
for g, choices in (d.get("variant_loras") or {}).items() if isinstance(choices, dict)
},
schedule=_parse_schedule(d.get("schedule")),
)
out: list[FlakeLink] = []
raw_links = raw.get("flake_links")
if isinstance(raw_links, list):
for lr in raw_links:
if isinstance(lr, dict) and lr.get("target"):
out.append(_one(lr))
else:
link_raw = raw.get("flake_link")
if isinstance(link_raw, dict) and link_raw.get("target"):
out.append(_one(link_raw))
return out
def _flake_from_raw(name: str, raw: dict[str, Any]) -> Flake:
prompts = _parse_prompt_list(raw)
unscheduled = [p for p in prompts if not p.schedule]
resolution = raw.get("resolution")
if resolution is not None:
resolution = (int(resolution[0]), int(resolution[1]))
cns = _parse_cn_list(raw.get("controlnets"), name)
# Parse LoRAs: new multi-LoRA format takes precedence; fall back to a legacy
# single LoRA stored as `path`/`strength`.
loras = _parse_lora_list(raw.get("loras"), name)
if not loras and raw.get("path"):
loras.append(LoraEntry(
name="", url="", path=_owned_file_path(str(raw["path"]), name), strength=float(raw.get("strength", 1.0)),
))
# Parse flake links (#232/#234) — defaults stored on the host yaml. Optional.
links = _parse_link_list(raw)
return Flake(
name=name,
positive=_join_prompt_text(p.positive for p in unscheduled),
negative=_join_prompt_text(p.negative for p in unscheduled),
scheduled_prompts=[p for p in prompts if p.schedule],
loras=loras,
lora_path=raw.get("path") or None,
strength=float(raw.get("strength", 1.0)),
resolution=resolution,
controlnets=cns,
variants=raw.get("variants") or raw.get("options") or {},
output_stem=raw.get("output_stem") or None,
flake_links=links,
flake_link=(links[0] if links else None),
)
def _combine_variant_stem(base: str | None, variant_stem: str) -> str:
"""Combine a flake's base ``output_stem`` with a variant choice's stem.
A base ending in ``/`` is an explicit folder, so the variant nests inside it;
otherwise the base is a filename prefix and the variant is appended as a
filename segment with ``_`` — NOT ``/``, which would wrongly fold the base
into a directory (``style_a`` + ``variant_b`` -> ``style_a_variant_b``,
not ``style_a/variant_b``) (#347).
"""
if not base:
return variant_stem
if base.endswith("/"):
return f"{base}{variant_stem.lstrip('/')}"
return f"{base}_{variant_stem.lstrip('/')}"
def load_flake(name: str) -> Flake:
path = _resolve_file(name)
with open(path, encoding="utf-8") as f:
raw: dict[str, Any] = yaml.safe_load(f) or {}
return _flake_from_raw(name, raw)
def resolve(entry: dict[str, Any]) -> Flake:
if entry.get("inline"):
flake = _flake_from_raw("__inline__", entry.get("content") or {})
else:
flake = load_flake(entry["name"])
# Legacy single LoRA strength override
if "strength" in entry and entry["strength"] is not None:
flake.strength = float(entry["strength"])
if flake.loras:
flake.loras[0].strength = flake.strength
# Multi-LoRA strength overrides
entry_loras = entry.get("loras")
if isinstance(entry_loras, list):
for i, override in enumerate(entry_loras):
if i < len(flake.loras) and override is not None:
flake.loras[i].strength = float(override)
# A group with no selection falls back to its default choice (#387);
# "__none__" is an explicit "no choice" that skips the default.
selected = dict(entry.get("variant") or entry.get("option") or {})
variant_loras = entry.get("variant_loras")
if not isinstance(variant_loras, dict):
variant_loras = {}
variant_link_overrides = entry.get("variant_link_overrides")
if not isinstance(variant_link_overrides, dict):
variant_link_overrides = {}
for group, default in variant_defaults(flake).items():
if not selected.get(group):
selected[group] = default
for group, choice in selected.items():
variant = flake.variants.get(group, {}).get(choice)
if not variant:
continue
extra_pos = str(variant.get("positive", "") or "")
extra_neg = str(variant.get("negative", "") or "")
if extra_pos:
flake.positive = f"{flake.positive}, {extra_pos}" if flake.positive else extra_pos
if extra_neg:
flake.negative = f"{flake.negative}, {extra_neg}" if flake.negative else extra_neg
variant_stem = variant.get("output_stem")
if variant_stem:
flake.output_stem = _combine_variant_stem(flake.output_stem, variant_stem)
# A variant choice can also contribute LoRAs, ControlNets, and flake links
# (#299) — merged on top of the flake's base. Choice links are appended to
# flake_links so the shared _apply_flake_link below resolves them (with its
# cycle guard) alongside any host links.
choice_loras = _parse_lora_list(variant.get("loras"), flake.name)
# Per-choice strength overrides from the grid item (#413).
group_loras = variant_loras.get(group)
slots = group_loras.get(choice) if isinstance(group_loras, dict) else None
if isinstance(slots, list):
for lr, s in zip(choice_loras, slots):
if isinstance(s, (int, float)):
lr.strength = float(s)
flake.loras.extend(choice_loras)
flake.controlnets.extend(_parse_cn_list(variant.get("controlnets"), flake.name))
group_links = variant_link_overrides.get(group)
link_ovrs = group_links.get(choice) if isinstance(group_links, dict) else None
for li, link in enumerate(_parse_link_list(variant)):
ovr = link_ovrs[li] if isinstance(link_ovrs, list) and li < len(link_ovrs) else None
link.choice_override = ovr if isinstance(ovr, dict) else {}
flake.flake_links.append(link)
# Runtime output_stem override from the option panel (not persisted to disk)
if "_output_stem_override" in entry:
flake.output_stem = entry["_output_stem_override"] or None
# ── Flake link resolution (#232) ──────────────────────────────────────
# If this flake declares a flake_link, also apply the linked flake's
# contributions (loras + prompts + variant prompts) after the host's.
# Cycle protection: pass a visited set so a chain can't loop forever.
_apply_flake_link(flake, entry, _visited=None)
return flake
def _apply_flake_link(host: "Flake", entry: dict[str, Any], _visited: set[str] | None = None) -> None:
"""Apply each of the host flake's links (#232/#234) by resolving the linked
flakes with merged overrides and appending their loras + prompts.
Override precedence (highest wins):
1. Per-grid placement override (entry["flake_link_overrides"][i], or the
legacy single entry["flake_link_override"] applied to the first link;
a variant choice's link uses its link.choice_override instead)
2. Host yaml flake_links[i].variant / .lora_strengths
3. Linked flake's own defaults
"""
links = host.flake_links or ([host.flake_link] if host.flake_link else [])
if not links:
return
overrides = entry.get("flake_link_overrides")
legacy_override = entry.get("flake_link_override") or {}
_visited = set(_visited or [])
_visited.add(host.name)
for i, link in enumerate(links):
if not link or not link.target or link.target in _visited:
continue # cycle guard / empty slot
if link.choice_override is not None:
grid_override = link.choice_override
elif isinstance(overrides, list):
grid_override = overrides[i] if (i < len(overrides) and isinstance(overrides[i], dict)) else {}
else:
grid_override = legacy_override if i == 0 else {}
_apply_single_link(host, link, grid_override)
def _apply_single_link(host: "Flake", link: "FlakeLink", grid_override: dict[str, Any]) -> None:
# Build the effective entry for the linked flake.
link_variant = dict(link.variant)
link_variant.update({str(k): str(v) for k, v in (grid_override.get("variant") or {}).items() if v})
# Strengths: each override slot is either a number (override) or None (use link default).
link_strengths = list(link.lora_strengths)
for i, s in enumerate(grid_override.get("lora_strengths") or []):
if s is None:
continue
if i >= len(link_strengths):
link_strengths.extend([None] * (i - len(link_strengths) + 1))
link_strengths[i] = float(s)
# Choice LoRA strengths (#414): per slot, a non-null grid override wins.
link_variant_loras = {g: {c: list(slots) for c, slots in choices.items()} for g, choices in link.variant_loras.items()}
ovr_variant_loras = grid_override.get("variant_loras")
for g, choices in (ovr_variant_loras.items() if isinstance(ovr_variant_loras, dict) else ()):
for c, slots in (choices.items() if isinstance(choices, dict) else ()):
merged = link_variant_loras.setdefault(str(g), {}).setdefault(str(c), [])
for i, s in enumerate(slots if isinstance(slots, list) else ()):
if not isinstance(s, (int, float)):
continue
if i >= len(merged):
merged.extend([None] * (i - len(merged) + 1))
merged[i] = float(s)
linked_entry = {
"name": link.target,
"variant": link_variant,
}
# Translate the link's lora_strengths into the entry's `loras` override
# (only set slots that have an explicit value; leave others None so they
# fall back to the linked flake's own default).
if link_strengths:
linked_entry["loras"] = link_strengths
if link_variant_loras:
linked_entry["variant_loras"] = link_variant_loras
try:
linked = resolve(linked_entry)
except FileNotFoundError:
# Missing linked flake — log via a print so it surfaces in the server
# log without taking a logging dep here.
print(f"[flakes] flake_link target not found: {link.target} (host: {host.name})")
return
# Append linked flake's loras to host's list, under the link's schedule.
for lr in linked.loras:
lr.schedule = multiply_schedules(link.schedule, lr.schedule)
host.loras.append(lr)
# A scheduled link turns the linked unscheduled text into a scheduled
# prompt; otherwise it is appended after the host's, comma-joined.
if link.schedule:
if linked.positive or linked.negative:
linked.scheduled_prompts.insert(0, PromptEntry(linked.positive, linked.negative))
for p in linked.scheduled_prompts:
p.schedule = multiply_schedules(link.schedule, p.schedule)
else:
host.positive = _join_prompt_text([host.positive, linked.positive])
host.negative = _join_prompt_text([host.negative, linked.negative])
host.scheduled_prompts.extend(linked.scheduled_prompts)
def variant_defaults(flake: Flake) -> dict[str, str]:
"""{group: choice} for groups whose first choice has ``default: true`` (#387)."""
defaults = {}
for group, choices in flake.variants.items():
first = next(iter((choices or {}).items()), None)
if first and (first[1] or {}).get("default"):
defaults[group] = first[0]
return defaults
# ---------------------------------------------------------------------------
# Cover image helpers
# ---------------------------------------------------------------------------
_COVER_EXTENSIONS = (".png", ".jpg", ".jpeg", ".webp", ".gif")
_COVER_MIME_MAP = {
".png": "image/png",
".jpg": "image/jpeg",
".jpeg": "image/jpeg",
".webp": "image/webp",
".gif": "image/gif",
}
def _resolve_cover_source(cover_source: str) -> tuple[bytes, str] | None:
"""Resolve a ``cover_image`` string from a flake/preset YAML to raw bytes.
The value can either be an absolute path to an image anywhere on disk
(#259 — manually added covers are stored by reference, never copied), a
direct image path under the LoRA tree, or — for legacy flakes — a
``.safetensors`` path whose sibling image we fall back to.
"""
# Absolute-path reference: read the file directly (image extensions only).
if os.path.isabs(cover_source):
if os.path.isfile(cover_source):
ext = os.path.splitext(cover_source)[1].lower()
if ext in _COVER_MIME_MAP:
with open(cover_source, "rb") as f:
return f.read(), _COVER_MIME_MAP[ext]
return None
direct = folder_paths.get_full_path("loras", cover_source)
if direct and os.path.isfile(direct):
ext = os.path.splitext(direct)[1].lower()
if ext in _COVER_MIME_MAP:
mime = _COVER_MIME_MAP[ext]
with open(direct, "rb") as f:
return f.read(), mime
# Legacy: path points at the weight file; find a sibling image.
dir_path = os.path.dirname(direct)
basename = os.path.splitext(os.path.basename(direct))[0]
for ext in _COVER_EXTENSIONS:
sibling = os.path.join(dir_path, basename + ext)
if os.path.isfile(sibling):
mime = _COVER_MIME_MAP.get(ext, "application/octet-stream")
with open(sibling, "rb") as f:
return f.read(), mime
return None
def _owned_cover_stem(name: str) -> str:
"""``<name>/<base>``: the cover stem inside the flake's owned folder."""
return f"{name}/{name.rsplit('/', 1)[-1]}"
def _cover_path(name: str, legacy_only: bool = False) -> str | None:
"""Find the cover file for a given flake name: the owned
``<name>/<base><ext>`` first, then the legacy sibling ``<name><ext>``."""
stems = (name,) if legacy_only else (_owned_cover_stem(name), name)
for stem in stems:
for root in _flakes_roots():
for e in _COVER_EXTENSIONS:
candidate = os.path.join(root, f"{stem}{e}")
try:
_ensure_inside(candidate, root)
except ValueError:
continue
if os.path.isfile(candidate):
return candidate
return None
def _delete_cover(name: str, legacy_only: bool = False) -> None:
while path := _cover_path(name, legacy_only):
os.remove(path)
def read_cover(name: str) -> tuple[bytes, str] | None:
"""Return (data, mime_type) or None if no cover exists."""
path = _cover_path(name)
if not path:
# Fallback: check if flake YAML has cover_image referencing an image
# under the LoRA tree (path may end with .png/.jpg/etc., or with
# .safetensors for legacy flakes — in which case we look for a sibling).
try:
raw = read_flake_raw(name)
cover_source = raw.get("cover_image")
if cover_source:
resolved = _resolve_cover_source(_owned_file_path(cover_source, name))
if resolved:
return resolved
except Exception:
pass
return None
ext = os.path.splitext(path)[1].lower()
mime = _COVER_MIME_MAP.get(ext, "application/octet-stream")
with open(path, "rb") as f:
return f.read(), mime
def _resolve_input_image(image_source: str) -> tuple[bytes, str] | None:
"""Resolve an image path relative to the ComfyUI input directory."""
input_dir = folder_paths.get_input_directory()
if not input_dir:
return None
candidate = os.path.normpath(os.path.join(input_dir, image_source))
try:
_ensure_inside(candidate, input_dir)
except ValueError:
return None
if not os.path.isfile(candidate):
return None
ext = os.path.splitext(candidate)[1].lower()
mime = _COVER_MIME_MAP.get(ext)
if not mime:
return None
with open(candidate, "rb") as f:
return f.read(), mime
def read_variant_image(name: str, group: str, choice: str) -> tuple[bytes, str] | None:
"""Return (data, mime_type) for a variant choice's ``image`` path, or None.
The ``image`` value is resolved either as a path under the ComfyUI input
directory (where the image picker sources from) or, like ``cover_image``,
a path under the LoRA tree (or a legacy weight path with a sibling image)."""
try:
raw = read_flake_raw(name)
except Exception:
return None
variants = raw.get("variants") or raw.get("options") or {}
choice_data = (variants.get(group) or {}).get(choice)
if not isinstance(choice_data, dict):
return None
image_source = choice_data.get("image")
if not image_source:
return None
if image_source.startswith("./"):
return read_flake_asset(name, image_source)
return _resolve_input_image(image_source) or _resolve_cover_source(image_source)
def read_flake_asset(name: str, path: str) -> tuple[bytes, str] | None:
"""Return (data, mime_type) for a ``./`` image path relative to the flake
yaml's directory, or None when it is missing or not an image."""
if not path.startswith("./"):
raise ValueError("asset path must start with './'")
flake_dir = os.path.dirname(_resolve_file(name))
full = os.path.normpath(os.path.join(flake_dir, path[2:]))
_ensure_inside(full, flake_dir)
return _resolve_cover_source(full)
# ---------------------------------------------------------------------------
# Preset helpers
# ---------------------------------------------------------------------------
def _resolve_preset_file(name: str) -> str:
_validate_name(name)
for root in _presets_roots():
for ext in (".yaml", ".yml"):
candidate = os.path.join(root, f"{name}{ext}")
if os.path.isfile(candidate):
_ensure_inside(candidate, root)
return candidate
raise FileNotFoundError(f"Preset '{name}' not found under any registered model_presets/ directory")
def _find_preset_root_index(name: str) -> int:
"""Index into ``_presets_roots()`` of the root that holds the preset's
YAML, so the editor can preselect the correct base path on edit (mirrors
``_find_flake_root_index``)."""
_validate_name(name)
roots = _presets_roots()
for idx, root in enumerate(roots):
for ext in (".yaml", ".yml"):
candidate = os.path.join(root, f"{name}{ext}")
if os.path.isfile(candidate):
_ensure_inside(candidate, root)
return idx
raise FileNotFoundError(f"Preset '{name}' not found under any registered model_presets/ directory")
def _anim_family_folder(family: str | None) -> str:
spec = flake_families.ANIM_BY_LABEL.get(family or "")
if spec is None:
raise ValueError(f"unknown animate family: {family!r}")
return spec.folder
def list_presets(family: str | None = None, roots: list[str] | None = None, kind: str = "img") -> list[str]:
"""Preset names of one ``kind``: "img" (everything outside ``anim/``) or
"anim" (``anim/<folder>/``)."""
anim_prefix = "anim/"
if kind == "anim" and family:
anim_prefix = f"anim/{_anim_family_folder(family)}/"
names: set[str] = set()
for root in roots or _presets_roots():
if not os.path.isdir(root):
continue
for dirpath, _, filenames in os.walk(root):
for fn in filenames:
stem, ext = os.path.splitext(fn)
if ext.lower() not in (".yaml", ".yml"):
continue
rel_dir = os.path.relpath(dirpath, root)
rel = stem if rel_dir in ("", ".") else os.path.join(rel_dir, stem)
rel_norm = rel.replace(os.sep, "/")
if kind == "anim":
if rel_norm.startswith(anim_prefix):
names.add(rel_norm)
elif rel_norm.split("/", 1)[0] != "anim" and (family is None or _is_preset_compatible(rel_norm, family)):
names.add(rel_norm)
return sorted(names)
def list_preset_display_names(family: str | None = None, kind: str = "img") -> dict[str, str]:
names = list_presets(family=family, kind=kind)
display_names: dict[str, str] = {}
for name in names:
try:
raw = read_preset_raw(name)
dn = raw.get("display_name") or ""
if dn:
display_names[name] = dn
except Exception:
pass
return display_names
def read_preset_raw(name: str) -> dict[str, Any]:
path = _resolve_preset_file(name)
with open(path, encoding="utf-8") as f:
return yaml.safe_load(f) or {}
def save_preset(
name: str,
data: dict[str, Any],
family: str | None = None,
base_root_index: int | None = None,
output_path: str | None = None,
old_name: str | None = None,
kind: str = "img",
) -> str:
"""Persist a model preset to disk and return the canonical name the
caller should now use.
Parameters
----------
name
Display-only fallback; ignored when ``output_path`` is provided.
data
Preset payload (YAML keys).
family
Used to prefix the output path with the family folder when
``output_path`` is not given.
base_root_index
Index into the registered ``model_presets`` roots. When set, the
preset is written under that specific root rather than the primary.
output_path
Path relative to the chosen root (without the ``.yaml`` extension).
Takes precedence over ``name`` / ``family`` prefixing.
old_name
When editing, the previously-stored canonical name. If the new
location differs, the old YAML (and its cover) are moved to the
new destination.
kind
"img", or "anim" for an animate preset: ``family`` is then an
``ANIM_FAMILIES`` label and the path is prefixed with ``anim/<folder>``.
"""
if not isinstance(data, dict):
raise ValueError("preset data must be an object")
roots = _presets_roots()
if base_root_index is not None:
if base_root_index < 0 or base_root_index >= len(roots):
raise ValueError(f"invalid base_root_index: {base_root_index}")
root = roots[base_root_index]
else:
root = _primary_presets_root()
folder = _anim_family_folder(family) if kind == "anim" else _family_folder(family)
if output_path:
canonical = output_path.replace("\\", "/").strip("/")
_validate_name(canonical)
if folder:
canonical = f"{kind}/{folder}/{canonical}"
else:
_validate_name(name)
canonical = f"{kind}/{folder}/{name}" if folder else name
target = os.path.join(root, f"{canonical}.yaml")
_ensure_inside(target, root)
target_real = os.path.realpath(target)
os.makedirs(os.path.dirname(target), exist_ok=True)
# Remove same-name copies in other preset roots so a stale duplicate in
# another root can't shadow this save on the next read (edits-lost-on-reopen,
# #262 — mirrors the flake fix in #242).
for other_root in roots:
other_path = os.path.realpath(os.path.join(other_root, f"{canonical}.yaml"))
if other_path == target_real:
continue
if os.path.isfile(other_path):
try:
os.remove(other_path)
print(f"[flakes] removed duplicate preset yaml: {other_path}")
except OSError:
pass
for ext in _COVER_EXTENSIONS:
cover_path = os.path.realpath(os.path.join(other_root, f"{canonical}{ext}"))
if cover_path != target_real and os.path.isfile(cover_path):
try:
os.remove(cover_path)
except OSError:
pass
# Move existing files if the location changed
if old_name and old_name != canonical:
try:
old_yaml = _resolve_preset_file(old_name)
except (FileNotFoundError, ValueError):
old_yaml = None
if old_yaml and os.path.realpath(old_yaml) != os.path.realpath(target):
try:
os.remove(old_yaml)
except OSError:
pass
old_cover = _preset_cover_path(old_name)
if old_cover:
cover_ext = os.path.splitext(old_cover)[1].lower()
new_cover_dir = os.path.dirname(target)
new_cover = os.path.join(new_cover_dir, f"{os.path.basename(canonical)}{cover_ext}")
try:
os.replace(old_cover, new_cover)
except OSError:
pass
with open(target, "w", encoding="utf-8") as f:
yaml.safe_dump(data, f, sort_keys=False, allow_unicode=True)
return canonical
def delete_preset(name: str) -> None:
path = _resolve_preset_file(name)
os.remove(path)
_delete_preset_cover(name)
def _preset_cover_path(name: str, ext: str | None = None) -> str | None:
"""Find the cover file for a given preset name."""
for root in _presets_roots():
if ext:
candidate = os.path.join(root, f"{name}{ext}")
try:
_ensure_inside(candidate, root)
except ValueError:
continue
if os.path.isfile(candidate):
return candidate
else:
for e in _COVER_EXTENSIONS:
candidate = os.path.join(root, f"{name}{e}")
try:
_ensure_inside(candidate, root)
except ValueError:
continue
if os.path.isfile(candidate):
return candidate
return None
def _delete_preset_cover(name: str) -> None:
path = _preset_cover_path(name)
if path:
os.remove(path)
def save_preset_cover(name: str, ext: str, data: bytes) -> None:
"""Save a cover image alongside the preset YAML."""
_validate_name(name)
ext_lower = ext.lower()
if ext_lower not in _COVER_EXTENSIONS:
raise ValueError(f"unsupported cover extension: {ext}")
_delete_preset_cover(name)
root = _primary_presets_root()
path = os.path.join(root, f"{name}{ext_lower}")
_ensure_inside(path, root)
os.makedirs(os.path.dirname(path), exist_ok=True)
with open(path, "wb") as f:
f.write(data)
def read_preset_cover(name: str) -> tuple[bytes, str] | None:
"""Return (data, mime_type) or None if no cover exists."""
path = _preset_cover_path(name)
if not path:
# Fallback: use the sibling image next to the preset's checkpoint
try:
preset = load_preset(name)
if preset.checkpoint:
ckpt_path = folder_paths.get_full_path("checkpoints", preset.checkpoint)
if ckpt_path and os.path.isfile(ckpt_path):
dir_path = os.path.dirname(ckpt_path)
basename = os.path.splitext(os.path.basename(ckpt_path))[0]
for ext in _COVER_EXTENSIONS:
sibling = os.path.join(dir_path, basename + ext)
if os.path.isfile(sibling):
mime = _COVER_MIME_MAP.get(ext, "application/octet-stream")
with open(sibling, "rb") as f:
return f.read(), mime
except Exception:
pass
return None
ext = os.path.splitext(path)[1].lower()
mime = _COVER_MIME_MAP.get(ext, "application/octet-stream")
with open(path, "rb") as f:
return f.read(), mime
def load_preset(name: str) -> ModelPreset:
raw = read_preset_raw(name)
prompt = raw.get("prompt") or {}
return ModelPreset(
name=name,
display_name=str(raw.get("display_name", "") or ""),
checkpoint=str(raw.get("checkpoint", "")),
checkpoint_url=str(raw.get("checkpoint_url", "")),
diffusion_model=raw.get("diffusion_model") or None,
clip_skip=int(raw.get("clip_skip", -2)),
vae=raw.get("vae") or None,
text_encoder=raw.get("text_encoder") or None,
clip_type=(str(raw["clip_type"]).strip().upper() or None) if raw.get("clip_type") else None,
shift=float(raw["shift"]) if raw.get("shift") not in (None, "") else None,
steps=int(raw.get("steps", 20)),
cfg=float(raw.get("cfg", 4.0)),
sampler=str(raw.get("sampler", "dpmpp_2m")),
scheduler=str(raw.get("scheduler", "karras")),
width=int(raw.get("width", 832)),
height=int(raw.get("height", 1216)),
positive=str(prompt.get("positive", "") or ""),
negative=str(prompt.get("negative", "") or ""),
embeddings=list(raw.get("embeddings") or []),
filename_prefix=str(raw.get("filename_prefix", "") or ""),
loras=_parse_lora_list(raw.get("loras")),
flake_links=_parse_link_list(raw),
)
def _num(raw: dict[str, Any], key: str, default, cast=float):
value = raw.get(key)
return default if value in (None, "") else cast(value)
def load_anim_preset(name: str) -> AnimPreset:
parts = name.split("/")
spec = flake_families.ANIM_BY_FOLDER.get(parts[1]) if parts[0] == "anim" and len(parts) >= 3 else None
if spec is None:
raise ValueError(f"'{name}' is not under model_presets/anim/<family>/")
raw = read_preset_raw(name)
prompt = raw.get("prompt") or {}
return AnimPreset(
name=name,
family=spec.folder,
display_name=str(raw.get("display_name", "") or ""),
filename_prefix=str(raw.get("filename_prefix", "") or ""),
diffusion_model=raw.get("diffusion_model") or None,
diffusion_model_high=raw.get("diffusion_model_high") or None,
diffusion_model_low=raw.get("diffusion_model_low") or None,
text_encoder=raw.get("text_encoder") or None,
clip_type=str(raw.get("clip_type") or spec.clip_type).strip().upper(),
vae=raw.get("vae") or None,
audio_vae=raw.get("audio_vae") or None,
steps=_num(raw, "steps", spec.steps, int),
cfg=_num(raw, "cfg", spec.cfg),
sampler=str(raw.get("sampler") or spec.sampler),
scheduler=str(raw.get("scheduler") or spec.scheduler),
fps=_num(raw, "fps", spec.fps, int),
duration=_num(raw, "duration", spec.duration),
resolution=str(raw.get("resolution") or spec.resolution),
shift_high=_num(raw, "shift_high", spec.shift_high),
shift_low=_num(raw, "shift_low", spec.shift_low),
refiner_step=_num(raw, "refiner_step", spec.refiner_step, int),
shift_video=_num(raw, "shift_video", spec.shift_video),
shift_audio=_num(raw, "shift_audio", spec.shift_audio),
positive=str(prompt.get("positive", "") or ""),
negative=str(prompt.get("negative", "") or ""),
loras=_parse_lora_list(raw.get("loras")),
)
# ---------------------------------------------------------------------------
# Portable bundles (#427)
# ---------------------------------------------------------------------------
# Model weights stay out of bundles: the user supplies them.
_WEIGHT_EXTENSIONS = (".safetensors", ".ckpt", ".pt", ".pth", ".gguf", ".bin")
def _bundle_files(yaml_path: str, blobs: dict[str, str]) -> dict[str, str]:
"""{path relative to the yaml's folder: content hash} of the files a flake
or preset owns: the ``<base><ext>`` cover beside it and its ``<base>/``
folder, minus model weights and yamls. Each content goes into *blobs*
once, so a file shared by several flakes is not duplicated."""
folder, base = os.path.split(os.path.splitext(yaml_path)[0])
paths = [os.path.join(folder, base + e) for e in _COVER_EXTENSIONS]
for dirpath, _, filenames in os.walk(os.path.join(folder, base)):
paths += [os.path.join(dirpath, fn) for fn in filenames]
files = {}
for path in paths:
if not os.path.isfile(path) or os.path.splitext(path)[1].lower() in _WEIGHT_EXTENSIONS + (".yaml", ".yml"):
continue
with open(path, "rb") as f:
data = f.read()
key = hashlib.sha256(data).hexdigest()
blobs.setdefault(key, base64.b64encode(data).decode("ascii"))
files[os.path.relpath(path, folder).replace(os.sep, "/")] = key
return files
def _link_targets(raw: dict[str, Any]) -> list[str]:
"""Flakes a flake or preset body links to, variant choices included."""
variants = raw.get("variants") or raw.get("options") or {}
bodies = [raw] + [c for choices in variants.values() if isinstance(choices, dict) for c in choices.values() if isinstance(c, dict)]
return [link.target for body in bodies for link in _parse_link_list(body)]
def collect_bundle(flakes: list[str], presets: list[str]) -> dict[str, Any]:
"""The portable bundle of *flakes*, *presets* and every flake they link
to: ``{version, files: {hash: base64}, flakes: {name: {yaml, files:
{rel: hash}}}, presets: {...}}``. A flake comes before the flakes it
links to. Missing link targets are left out, as ``resolve`` skips them."""
bundle: dict[str, Any] = {"version": 1, "files": {}, "flakes": {}, "presets": {}}
def add(kind: str, name: str) -> None:
if name in bundle[kind]:
return
try:
path = _resolve_file(name) if kind == "flakes" else _resolve_preset_file(name)
except FileNotFoundError:
return
with open(path, encoding="utf-8") as f:
text = f.read()
bundle[kind][name] = {"yaml": text, "files": _bundle_files(path, bundle["files"])}
for target in _link_targets(yaml.safe_load(text) or {}):
add("flakes", target)
for name in flakes:
add("flakes", name)
for name in presets:
add("presets", name)
return bundle
def _retarget_links(data: Any, renames: dict[str, str]) -> Any:
if isinstance(data, list):
return [_retarget_links(v, renames) for v in data]
if not isinstance(data, dict):
return data
out = {k: _retarget_links(v, renames) for k, v in data.items()}
if isinstance(out.get("target"), str):
out["target"] = renames.get(out["target"], out["target"])
return out
def _bundle_yaml(text: str, old_base: str, new_base: str, renames: dict[str, str]) -> str:
"""*text* with its ``./<old_base>/`` paths and renamed link targets
rewritten; the original text when nothing changes."""
data = yaml.safe_load(text) or {}
new = _retarget_links(_rewrite_prefix(data, f"./{old_base}/", f"./{new_base}/"), renames)
return text if new == data else yaml.safe_dump(new, sort_keys=False, allow_unicode=True)
def _renamed_rel(rel: str, old_base: str, new_base: str) -> str:
"""A bundle file path under a new base name: the ``<base>/`` folder or
``<base><ext>`` cover, and the owned ``<base>/<base><ext>`` cover, like
``save_flake`` renames them."""
parts = rel.split("/")
parts[0] = new_base + parts[0][len(old_base):]
if len(parts) == 2 and os.path.splitext(parts[1])[0] == old_base:
parts[1] = new_base + parts[1][len(old_base):]
return "/".join(parts)
def install_bundle(bundle: dict[str, Any]) -> dict[str, Any]:
"""Install a ``collect_bundle`` bundle without overwriting anything: a name
holding an identical yaml is skipped, one holding a different yaml installs
as "<name> (imported)" (then "(imported 2)", ...). Returns the installed
names and the {old: new} renames of flakes and presets."""
if bundle.get("version") != 1:
raise ValueError(f"unsupported flake bundle version: {bundle.get('version')!r}")
blobs = bundle.get("files") or {}
kinds = (("flakes", _primary_root(), _resolve_file), ("presets", _primary_presets_root(), _resolve_preset_file))
for kind, _, _ in kinds:
for name, item in (bundle.get(kind) or {}).items():
_validate_name(name)
base = name.rsplit("/", 1)[-1]
for rel, key in item["files"].items():
parts = rel.split("/")
if ("\\" in rel or any(p in ("", ".", "..") for p in parts) or os.path.splitext(parts[0])[0] != base
or os.path.splitext(rel)[1].lower() in _WEIGHT_EXTENSIONS or key not in blobs):
raise ValueError(f"invalid file {rel!r} in bundled {name!r}")
result: dict[str, Any] = {"installed": [], "flakes": {}, "presets": {}}
for kind, root, resolve_file in kinds:
# Reversed so linked flakes get their final names before the flakes
# (and then presets) whose link targets point at them.
for name, item in reversed(list((bundle.get(kind) or {}).items())):
base = name.rsplit("/", 1)[-1]
for new in itertools.chain([name, f"{name} (imported)"], (f"{name} (imported {n})" for n in itertools.count(2))):
new_base = new.rsplit("/", 1)[-1]
text = _bundle_yaml(item["yaml"], base, new_base, result["flakes"])
try:
with open(resolve_file(new), encoding="utf-8") as f:
if f.read() == text:
break
except FileNotFoundError:
target = os.path.join(root, f"{new}.yaml")
_ensure_inside(target, root)
folder = os.path.dirname(target)
os.makedirs(folder, exist_ok=True)
with open(target, "w", encoding="utf-8") as f:
f.write(text)
for rel, key in item["files"].items():
path = os.path.join(folder, _renamed_rel(rel, base, new_base))
_ensure_inside(path, root)
if not os.path.exists(path):
os.makedirs(os.path.dirname(path), exist_ok=True)
with open(path, "wb") as f:
f.write(base64.b64decode(blobs[key]))
result["installed"].append(new)
break
if new != name:
result[kind][name] = new
return result