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zsc-sync.sh: init subdatasets that don't exist remotely

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This commit is contained in:
Alice Gaudon 2021-03-07 15:50:48 +01:00
parent b2ef084b4e
commit 1bca577ede
1 changed files with 46 additions and 4 deletions
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50
zsc-sync.sh
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@ -107,6 +107,49 @@ handle_dataset() {
fi
}
init_subdataset() {
DATASET=$1
PARENT_DATASET=$2
TARGET_REMOTE_DATASET="$REMOTE_ROOT_DATASET/"$(echo -e $PARENT_DATASET | sed -r "s/\//_/g")"/"${DATASET:$(echo -e "$PARENT_DATASET" | wc -c)}
REMOTE_DATASETS=($(ssh $REMOTE zfs list -H -o name -s creation -r $REMOTE_ROOT_DATASET))
### Resume existing transfer ###
RESUME_TOKEN=$(ssh $REMOTE zfs get -H -p receive_resume_token -o value "$TARGET_REMOTE_DATASET")
if [ "$RESUME_TOKEN" != "" ] && [ "$RESUME_TOKEN" != "-" ]; then
echo "Resuming interrupted transfer..."
zfs send -v -t "$RESUME_TOKEN" | ssh $REMOTE zfs receive -F -s "$TARGET_REMOTE_DATASET" || return 1
echo "Resumed transfer finished."
return 0
fi
found=false
for d in "${REMOTE_DATASETS[@]}"; do
if [ "$TARGET_REMOTE_DATASET" == "$d" ]; then
found=true
break
fi
done
if [ $found = false ]; then
echo "Subdataset not found on $TARGET_REMOTE_DATASET, initializing..."
LOCAL_SNAPSHOT=($(zfs list -H -t snapshot -o name -s creation "$DATASET" | cut -d"@" -f 2 | tail -n 1))
if test -z "$LOCAL_SNAPSHOT"; then
echo "No local snapshot"
return 1
fi
echo "[$DATASET@$LOCAL_SNAPSHOT -> $TARGET_REMOTE_DATASET]"
zfs send -v -p "$DATASET@$LOCAL_SNAPSHOT" | ssh $REMOTE zfs receive -F -s "$TARGET_REMOTE_DATASET" || return 1
echo -e "Done"
fi
}
for line in $(cat "$ZSC_CONFIG") ; do
IFS=: read dataset recursive d w m y prefix <<< "$line"
@ -116,10 +159,9 @@ for line in $(cat "$ZSC_CONFIG") ; do
SUBDATASETS=($(zfs list -o name | grep "$dataset/"))
echo -e "| Subdatasets: ${SUBDATASETS[@]}"
echo -e '|'
#for p in "${SUBDATASETS[@]}"; do
# handle_dataset $p $d $w $m $y $prefix | awk '{print "| " $0}' || exit 1
# echo -e '|'
#done
for p in "${SUBDATASETS[@]}"; do
init_subdataset $p $dataset | awk '{print "| " $0}' || exit 1
done
fi
handle_dataset $dataset $recursive $d $w $m $y $prefix | awk '{print "| " $0}' || exit 1