Implements centralized path canonicalization to ensure symlinks and paths
with . or .. segments are resolved to their canonical form, preventing
false duplicate detection.
Changes to utils.py:
- Add canonical_path() function using Path.resolve()
- Add canonical_path_str() for dictionary key usage
Changes to models.py:
- Add __post_init__ to VideoFile to auto-canonicalize paths
- All VideoFile instances now have canonical paths automatically
Impact:
- Path-based dictionary lookups now work correctly with symlinks
- io.py: path_to_inventory dictionary uses canonical keys
- planner.py: path_to_index dictionary uses canonical keys
- analysis.py: Duplicate detection uses canonical paths
- No false duplicates from symlinks or relative paths
Testing:
- Added comprehensive tests for canonical_path functions
- Tests verify symlink resolution, absolute path conversion, .. removal
- All 449 tests pass (added 10 new tests)
Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>
