I hadn't noticed this before, but I added some files in the past and, finally looking at them today, the file extension is missing in the annex. This confuses OS X something awful, so it opens the file in TextEdit instead of VLC. If I open the file directly using VLC, it works.
I just dropped and re-added the file that has an extension. It lacked it before:
ls -l 10*
lrwxr-xr-x 1 jasonb staff 215 Sep 16 15:23 10 Minute Ab Chisel.mkv -> ../.git/annex/objects/zw/mG/WORM-s103155193-m1516830000--Masters,32Hammer,32and,32Chisel-a67ed6d2a3dfd5fe29be62146fbd0c04/WORM-s103155193-m1516830000--Masters,32Hammer,32and,32Chisel-a67ed6d2a3dfd5fe29be62146fbd0c04
lrwxr-xr-x 1 jasonb staff 209 Sep 16 15:04 10 Minute Ab Hammer.mkv -> ../.git/annex/objects/jx/5p/WORM-s117692368-m1537124682--Masters,32Hammer,32and,32Chisel%10,32Minute,32Ab,32Hammer.mkv/WORM-s117692368-m1537124682--Masters,32Hammer,32and,32Chisel%10,32Minute,32Ab,32Hammer.mkv
Is there something I can do to recover my file extensions besides manually dropping and re-adding each file?
Thanks.
Unfortunately, my remotes don't know anything about the change, so when I push it, the symlinks point to files that don't exist, even though the data is still in the annex with the original mysterious filenames.
How to get git-annex to recover the existing data?
You used the WORM backend which is not the default backend, and which does not preserve the extension inside the symlink target in all cases.
You'll need to re-upload the data to the remotes since you've added it back under a different key. It would also be possible to use
git annex reinjecton the remote, pointing it at the old content's filename.