ComfyUI/app/assets/helpers.py
Luke Mino-Altherr 2eb100adf9 Refactor helpers.py: move functions to their respective modules
- Move scanner-only functions to scanner.py
- Move query-only functions (is_scalar, project_kv) to asset_info.py
- Move get_query_dict to routes.py
- Create path_utils.py service for path-related functions
- Reduce helpers.py to shared utilities only

Amp-Thread-ID: https://ampcode.com/threads/T-019c2510-33fa-7199-ae4b-bc31102277a7
Co-authored-by: Amp <amp@ampcode.com>
2026-02-03 13:08:04 -08:00

47 lines
1.6 KiB
Python

import os
from datetime import datetime, timezone
from typing import Literal, Sequence
def pick_best_live_path(states: Sequence) -> str:
"""
Return the best on-disk path among cache states:
1) Prefer a path that exists with needs_verify == False (already verified).
2) Otherwise, pick the first path that exists.
3) Otherwise return empty string.
"""
alive = [s for s in states if getattr(s, "file_path", None) and os.path.isfile(s.file_path)]
if not alive:
return ""
for s in alive:
if not getattr(s, "needs_verify", False):
return s.file_path
return alive[0].file_path
ALLOWED_ROOTS: tuple[Literal["models", "input", "output"], ...] = ("models", "input", "output")
def escape_like_prefix(s: str, escape: str = "!") -> tuple[str, str]:
"""Escapes %, _ and the escape char itself in a LIKE prefix.
Returns (escaped_prefix, escape_char). Caller should append '%' and pass escape=escape_char to .like().
"""
s = s.replace(escape, escape + escape) # escape the escape char first
s = s.replace("%", escape + "%").replace("_", escape + "_") # escape LIKE wildcards
return s, escape
def utcnow() -> datetime:
"""Naive UTC timestamp (no tzinfo). We always treat DB datetimes as UTC."""
return datetime.now(timezone.utc).replace(tzinfo=None)
def normalize_tags(tags: list[str] | None) -> list[str]:
"""
Normalize a list of tags by:
- Stripping whitespace and converting to lowercase.
- Removing duplicates.
"""
return [t.strip().lower() for t in (tags or []) if (t or "").strip()]