Hi,
Just wanted to share this in case it's useful to any other user (or in case
somebody has a better solution to this as well).
I use tarsnap for backing up photos. So, in truth, there are no modifications
to my files, only additions and deletions. I wanted some way of keeping track
of what I delete/add easily (especially to find *when* I deleted something,
etc).
tarsnap -t -v get some of the work done - but I'd need to do this for every
archive, and I've several thousand files (photos), so it's slow, and
inefficient (and not free!).
So I wrote a tiny backup script that keeps a listing of files inside the backed
up directory right when each backup is done:
#!/bin/sh
set -e
set -u
FILE_DIR=/home/hugo/photos
META_DIR=/home/hugo/.local/share/tarsnap/index
CACHE_DIR=/home/hugo/.local/share/tarsnap/cache
WHEN=$(date +%Y-%m-%dT%H%M%S%z)
KEY=/path/to/write/only.key
# Update the file index.
find $FILE_DIR | sort > $META_DIR/photos
git -C $META_DIR add $META_DIR/photos
git -C $META_DIR commit -m "Update photos index file for $WHEN."
# Perform the backup itself.
tarsnap -c --keyfile $KEY --cachedir $CACHE_DIR -f photos-$WHEN \
--exclude "Unsorted" --one-file-system --print-stats $FILE_DIR
So now I've a git repository with a file with the listing for the files on each
backup.
Simply running `git log -p photos` inside the repository will show a very
friendly and readable changelog of added and deleted files, sorted
chronologically.
Cheers, and thanks for tarsnap!
--
Hugo Osvaldo Barrera
A: Because we read from top to bottom, left to right.
Q: Why should I start my reply below the quoted text?
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