cdown / exifrename

Rename image files based on EXIF data.

exifrename |

exifrename renames or copies files based on EXIF data.

Installation

cargo install exifrename

Usage

See --help for more information on how to populate -f FORMAT and other available options. An example invocation is:

% exifrename --copy \
>  -f "$HOME/Photos/{camera_make}/{year}{month}{day}_{hour}{minute}{second}" \
>  /mnt/sdcard/*.jpg
/mnt/sdcard/P0001.jpg -> /home/cdown/Photos/FUJIFILM/20230126_184547_0.jpg
/mnt/sdcard/P0002.jpg -> /home/cdown/Photos/FUJIFILM/20230126_184547_1.jpg
/mnt/sdcard/P0003.jpg -> /home/cdown/Photos/FUJIFILM/20230126_184548_0.jpg
/mnt/sdcard/P0004.jpg -> /home/cdown/Photos/FUJIFILM/20230126_184548_1.jpg
/mnt/sdcard/P0005.jpg -> /home/cdown/Photos/FUJIFILM/20230126_184548_2.jpg
/mnt/sdcard/P0006.jpg -> /home/cdown/Photos/FUJIFILM/20230126_184548_3.jpg
/mnt/sdcard/P0007.jpg -> /home/cdown/Photos/FUJIFILM/20230126_184551.jpg
/mnt/sdcard/P0008.jpg -> /home/cdown/Photos/FUJIFILM/20230126_184802.jpg
[...]

You can also see what would be changed first using --dry-run.

Performance

exifrename has a strong focus on performance. On a sample modern laptop with a mid-spec SSD, we take ~0.02 seconds to produce new names for over 5000 files with the format {year}{month}{day}_{hour}{minute}{second}.

exifrename's Issues

Return exit code 1 when an error occurred

Right now when we have an error we just print it out with eprintln!(), but the exit code is still 0. Ideally we should show that an error occurred by having an error code >0 -- 1 is fine.

You can do this with process::exit(1) at the end of main. We should still continue anyway, but just indicate at the end that it failed with a >0 exit code.

Add reflink/hardlink support

Split out main a bit

The big ones to be split:

1. get_paths
2. get_names
3. rename_files

Will need to pass error_seen.

Only print either success or error on rename

Currently the log looks like:

/tmp/sdcard/P0030.jpg -> /tmp/FUJIFILM/20230126_190651.jpg
failed to finalise /tmp/sdcard/P0030.jpg -> /tmp/FUJIFILM/20230126_190651: File exists (os error 17)
/tmp/sdcard/P0032.jpg -> /tmp/FUJIFILM/20230126_190654_0.jpg
failed to finalise /tmp/sdcard/P0032.jpg -> /tmp/FUJIFILM/20230126_190654: File exists (os error 17)
/tmp/sdcard/P0033.jpg -> /tmp/FUJIFILM/20230126_190654_1.jpg
failed to finalise /tmp/sdcard/P0033.jpg -> /tmp/FUJIFILM/20230126_190654: File exists (os error 17)

Firstly, it would be good for the log to show the full name if at all possible.

Secondly, it would be better to avoid printing the first group of interleaved lines on failure, since they're already shown in full context in the failure.