tarsnap-prune.sh debug options

[pronoiac]

The original debug option was for developer use, on a different system. For others to use it, it's probably better and clearer to add an argument for a dry-run, which regenerates the archive list. Or perhaps, add an option if you don't want to regenerate the archive list.

[tjharman]

If you set DEBUG=true then tarsnap-prune.sh doesn't run correctly anyway, because of this:

then
    TMPFILE=/tmp/tarsnap.archives
    if [ ! -f $TMPFILE ]; then
        $TARSNAP --configfile /etc/tarsnap.conf --list-archives > $TMPFILE
    fi
else
    TMPFILE=/tmp/tarsnap.archives.$$
    $TARSNAP --configfile /etc/tarsnap.conf --list-archives > $TMPFILE
fi

The problem is, if DEBUG=true in tarsnap-cron.conf then this is run:

if [ "$DEBUG" = "true" ]
then
    TARSNAP="echo tarsnap"
fi

Thus /tmp/tarsnap.archives ends up with "echo tarsnap --configfile /etc/tarsnap.conf --list-archives" in it.

Given this issue is ~5 years old I don't expect any fixes, this is just here for the next person that wonders what's going on.