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bundles/backup/files/backup_path_via_zfs: delte old bookmarks and snapshots

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This commit is contained in:
mwiegand 2022-08-09 19:57:52 +02:00
parent 116697af9f
commit 49081248ae
1 changed files with 14 additions and 1 deletions

15
bundles/backup/files/backup_path_via_zfs
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@ -33,7 +33,7 @@ zfs snap "$source_dataset@$new_bookmark"
if zfs list -t bookmark -H -o name | grep "^$source_dataset#$bookmark_prefix" | wc -l | grep -q "^0$"
then
echo "INITIAL BACKUP"
# do in subshell, otherwise ctr+c will lead to 0 exitcode
# do in subshell, otherwise ctr+c will lead to 0 exitcode
$(zfs send -v "$source_dataset@$new_bookmark" | $ssh sudo zfs recv -F "$target_dataset")
else
echo "INCREMENTAL BACKUP"
@ -44,6 +44,19 @@ fi
if [[ "$?" == "0" ]]
then
# delete old local bookmarks
for destroyable_bookmark in $(zfs list -t bookmark -H -o name "$dataset" | grep "^$dataset#$bookmark_prefix")
do
zfs destroy "$destroyable_bookmark"
done
# delete snapshots from bookmarks (except newest, even of not necessary; maybe for resuming tho)
for destroyable_snapshot in $($ssh sudo zfs list -t snapshot -H -o name "$dataset" | grep "^$dataset@$bookmark_prefix" | grep -v "$new_bookmark")
do
$ssh sudo zfs destroy "$destroyable_snapshot"
done
zfs bookmark "$source_dataset@$new_bookmark" "$source_dataset#$new_bookmark"
zfs destroy "$source_dataset@$new_bookmark" # keep snapshots?
echo "SUCCESS"