Restic backup with .gitignore style excludes

restic_backup.sh

#!/bin/bash

TEMPFILE='/tmp/restic_ignores.txt'
BACKUPDIR=$HOME  

# Note: Not sure which way is better, echo nothing into the file, or remove if exists
# if [ -f $TEMPFILE ]; then
#   rm $TEMPFILE
# fi
# touch $TEMPFILE

echo > $TEMPFILE

IGNOREFILES=`find $BACKUPDIR -name '.restic_ignore' -print`

for IGNOREFILE in $IGNOREFILES
do
    PATTERNS=`cat $IGNOREFILE`
    for PATTERN in $PATTERNS
    do
        printf "%s/%s\n" $(dirname $IGNOREFILE) $PATTERN >> $TEMPFILE
    done
done

restic backup $BACKUPDIR --exclude-file=$TEMPFILE --exclude-caches # and any other options here