Function _detect_srtin_from_reference

ffsubsync/ffsubsync.py:449–474

Find subtitle files that sit next to the reference and share its name. Matches ` .srt` and ` . .srt` (e.g. `movie.srt`, `movie.en.srt` for a `movie.mkv` reference) in the reference's own directory, so detection works regardless of the process's curre

(reference: str)

def _detect_srtin_from_reference(reference: str) -> List[str]:
    """Find subtitle files that sit next to the reference and share its name.

    Matches `<reference-stem>.srt` and `<reference-stem>.<suffix>.srt` (e.g.
    `movie.srt`, `movie.en.srt` for a `movie.mkv` reference) in the reference&#x27;s
    own directory, so detection works regardless of the process&#x27;s current
    working directory. The reference itself is never returned, so this is safe
    even when the reference is already a subtitle file.
    """
    reference_dir = os.path.dirname(reference) or "."
    reference_stem = os.path.splitext(os.path.basename(reference))[0]
    reference_abspath = os.path.abspath(reference)
    matches = []
    for name in sorted(os.listdir(reference_dir)):
        stem, ext = os.path.splitext(name)
        if ext.lower() != ".srt":
            continue
        if name.endswith(".synced.srt"):
            continue  # skip our own previously-synced outputs so re-runs are idempotent
        if stem != reference_stem and not stem.startswith(reference_stem + "."):
            continue
        path = os.path.join(reference_dir, name)
        if os.path.abspath(path) == reference_abspath:
            continue
        matches.append(path)
    return matches


def validate_args(args: argparse.Namespace) -> None: