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function borg_init() {
local encryption
if [ -z "$BACKUP_PASSCOMMAND" ] ; then
echo "borg: no password given, repository is not protected"
encryption="none"
else
encryption="repokey-blake2"
fi
export BORG_PASSCOMMAND="$BACKUP_PASSCOMMAND"
for backup_dir in ${BACKUP_DIRS[*]}
do
# borg will check if repo exists
borg init --encryption="$encryption" "$backup_dir"
done
}
function borg_create_backup() {
export BORG_PASSCOMMAND="$BACKUP_PASSCOMMAND"
local retcode=255
for backup_dir in ${BACKUP_DIRS[*]}
do
export BORG_REPO="$backup_dir"
trap 'echo $( date ) Backup interrupted >&2; exit 2' INT TERM
echo "borg: backing up to \"$backup_dir\""
borg create \
"${backup_dir}::${BACKUP_NAME}_$(date +'%F_%H-%M-%S')" \
"$WORLD_NAME" \
--filter AME \
--compression lz4 \
--exclude-caches \
local backup_exit=$?
echo_debug "borg: pruning repository at \"$backup_dir\""
borg prune \
--prefix '{hostname}-' \
--keep-minutely 2 \
--keep-hourly 24 \
--keep-daily 7 \
--keep-weekly 4 \
--keep-monthly 6 \
"$backup_dir"
local prune_exit=$?
# use highest exit code as global exit code
local global_exit=$(( backup_exit > prune_exit ? backup_exit : prune_exit ))
retcode=$(( global_exit > retcode ? global_exit : retcode ))
if [ ${global_exit} -eq 0 ]; then
echo_debug "borg: backup and prune finished successfully"
elif [ ${global_exit} -eq 1 ]; then
echo "borg: backup and/or prune finished with warnings"
else
echo "borg: backup and/or prune finished with errors"
fi
#exit ${global_exit}
done
return $retcode
}
# server_restore relies on output format of this function
function borg_ls_dir() {
export BORG_PASSCOMMAND="$BACKUP_PASSCOMMAND"
borg list "$1" | cut -d' ' -f1 | sort -r
}
function borg_ls_all() {
export BORG_PASSCOMMAND="$BACKUP_PASSCOMMAND"
for backup_dir in ${BACKUP_DIRS[*]}
do
echo "borg: backups in \"$backup_dir\":"
borg list "$backup_dir" | cut -d' ' -f1
done
}
function borg_restore() {
export BORG_PASSCOMMAND="$BACKUP_PASSCOMMAND"
local remote="$1"
local snapshot="$2"
local dest="$3"
export BORG_REPO="$remote"
cd "$dest"
borg extract "${remote}::${snapshot}"
cd - > /dev/null
}
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