Module sidecar 

XMP sidecar file discovery.

Locates .xmp companion files alongside media assets using the same naming conventions that Immich recognises:

1. photo.jpg.xmp (preferred – includes the media extension)
2. photo.xmp (fallback – stem only)

Both patterns are probed case-insensitively so photo.CR2.XMP is found.

Functions

case_insensitive_exists 🔒

Check whether a file exists using case-insensitive extension matching.

find_sidecar

Find the XMP sidecar companion for a media file, if one exists on disk.

resolve_case_insensitive 🔒

Scan the parent directory for a file whose name matches case-insensitively.