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Before this change, the VFS layer did not properly handle unicode normalization, which caused problems particularly for users of macOS. While attempts were made to handle it with various `-o modules=iconv` combinations, this was an imperfect solution, as no one combination allowed both NFC and NFD content to simultaneously be both visible and editable via Finder. After this change, the VFS supports `--no-unicode-normalization` (default `false`) via the existing `--vfs-case-insensitive` logic, which is extended to apply to both case insensitivity and unicode normalization form. This change also adds an additional flag, `--vfs-block-norm-dupes`, to address a probably rare but potentially possible scenario where a directory contains multiple duplicate filenames after applying case and unicode normalization settings. In such a scenario, this flag (disabled by default) hides the duplicates. This comes with a performance tradeoff, as rclone will have to scan the entire directory for duplicates when listing a directory. For this reason, it is recommended to leave this disabled if not needed. However, macOS users may wish to consider using it, as otherwise, if a remote directory contains both NFC and NFD versions of the same filename, an odd situation will occur: both versions of the file will be visible in the mount, and both will appear to be editable, however, editing either version will actually result in only the NFD version getting edited under the hood. `--vfs-block-norm-dupes` prevents this confusion by detecting this scenario, hiding the duplicates, and logging an error, similar to how this is handled in `rclone sync`. |
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| cachemode_test.go | ||
| cachemode.go | ||
| options.go | ||
| path.go | ||