Jonathan
65 lines
2.3 KiB
Python
65 lines
2.3 KiB
Python
import os
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import re
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import shutil
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from lyra_worker.types import MBTarget
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_ILLEGAL = re.compile(r'[<>:"/\\|?*\x00-\x1f]')
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def safe_name(s: str) -> str:
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"""A filesystem-safe path component (single segment, no separators)."""
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cleaned = _ILLEGAL.sub("_", s).strip().strip(".").strip()
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return cleaned or "Unknown"
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def album_dir(dest_root: str, target: MBTarget) -> str:
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"""`{dest_root}/{safe artist}/{safe album}[ (year)]`."""
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album = safe_name(target.album)
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if target.year:
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album = f"{album} ({target.year})"
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return f"{dest_root}/{safe_name(target.artist)}/{album}"
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_AUDIO_EXT = {".flac", ".mp3", ".m4a", ".opus", ".ogg", ".aac", ".wav"}
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_COVER_STEMS = {"cover", "folder", "front"}
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_COVER_EXT = {".jpg", ".jpeg", ".png"}
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def staging_dir(dest_root: str, job_id: str) -> str:
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"""A per-job download staging directory, on the same filesystem as the library."""
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return f"{dest_root}/.staging/{job_id}"
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def clear_staging_root(dest_root: str) -> None:
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"""Remove every staging dir (called at worker startup to sweep crash orphans)."""
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shutil.rmtree(f"{dest_root}/.staging", ignore_errors=True)
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def _find_cover(staging: str) -> str | None:
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for root, _dirs, files in os.walk(staging):
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for name in sorted(files):
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stem, ext = os.path.splitext(name)
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if ext.lower() in _COVER_EXT and stem.lower() in _COVER_STEMS:
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return os.path.join(root, name)
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return None
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def import_album(staging: str, final: str) -> str:
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"""Move the album's audio files (+ one cover image) from `staging` into a fresh `final`,
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replacing any existing folder there. Non-audio artifacts and nested subfolders are left
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behind (the caller removes `staging`). Tolerates a missing `staging`. Returns `final`."""
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if os.path.isdir(final):
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shutil.rmtree(final)
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os.makedirs(final, exist_ok=True)
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if not os.path.isdir(staging):
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return final
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for name in sorted(os.listdir(staging)):
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src = os.path.join(staging, name)
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if os.path.isfile(src) and os.path.splitext(name)[1].lower() in _AUDIO_EXT:
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shutil.move(src, os.path.join(final, name))
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cover = _find_cover(staging)
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if cover is not None:
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shutil.move(cover, os.path.join(final, "cover.jpg"))
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return final
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