zsc-sync.sh: sync subdatasets in init if they are out of date with their parents
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18a7200bee
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80
zsc-sync.sh
80
zsc-sync.sh
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@ -56,12 +56,8 @@ resume_transfer() {
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handle_dataset() {
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DATASET=$1
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RECURSIVE=$2
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D=$3
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W=$4
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M=$5
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Y=$6
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PREFIX=$7
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PREFIX=$3
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if test -z "$PREFIX"; then
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PREFIX="zsc-"
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fi
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@ -70,10 +66,13 @@ handle_dataset() {
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PREFIX=""
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fi
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TARGET_REMOTE_DATASET="$REMOTE_ROOT_DATASET/"$(echo -e "$DATASET" | sed -r "s/\//_/g")
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TARGET_REMOTE_DATASET=$4
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if test -z "$TARGET_REMOTE_DATASET"; then
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TARGET_REMOTE_DATASET="$REMOTE_ROOT_DATASET/"$(echo -e "$DATASET" | sed -r "s/\//_/g")
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fi
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echo "[$DATASET -> $TARGET_REMOTE_DATASET]"
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echo -e
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echo
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resume_transfer "$TARGET_REMOTE_DATASET" || return 0
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@ -85,7 +84,7 @@ handle_dataset() {
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echo "Remote snapshots: ${#REMOTE_SNAPSHOTS[@]}"
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echo "Local snapshots: ${#LOCAL_SNAPSHOTS[@]}"
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echo -e
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echo
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for local_snapshot in "${LOCAL_SNAPSHOTS[@]}"; do
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found=false
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@ -107,7 +106,7 @@ handle_dataset() {
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done
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echo "Snapshots are synchronized up to $FROM_SNAPSHOT"
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echo -e
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echo
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if test ! -z "$TO_SNAPSHOT"; then
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echo "Synchronizing snapshots from $FROM_SNAPSHOT to $TO_SNAPSHOT ..."
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@ -120,13 +119,16 @@ handle_dataset() {
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fi
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zfs send -v -p $recu $incr "$DATASET@$TO_SNAPSHOT" | ssh $REMOTE zfs receive -F -s "$TARGET_REMOTE_DATASET" || return 1
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echo
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echo "Done"
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echo
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fi
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}
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init_subdataset() {
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DATASET=$1
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PARENT_DATASET=$2
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LATEST_SYNCHRONIZED_SNAPSHOT=$3
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TARGET_REMOTE_DATASET="$REMOTE_ROOT_DATASET/"$(echo -e $PARENT_DATASET | sed -r "s/\//_/g")"/"${DATASET:$(echo -e "$PARENT_DATASET" | wc -c)}
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@ -146,27 +148,71 @@ init_subdataset() {
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echo "[$DATASET@$LOCAL_SNAPSHOT -> $TARGET_REMOTE_DATASET]"
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zfs send -v -p "$DATASET@$LOCAL_SNAPSHOT" | ssh $REMOTE zfs receive -F -s "$TARGET_REMOTE_DATASET" || return 1
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echo -e "Done"
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echo
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echo "--- Done"
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echo
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elif [ $(echo -e "$remote_snapshots" | grep -e "^$TARGET_REMOTE_DATASET@$LATEST_SYNCHRONIZED_SNAPSHOT\$" | wc -l) -eq 0 ]; then
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echo
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echo "--- Subdataset $TARGET_REMOTE_DATASET is out of date compared to parent dataset. Syncing first..."
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handle_dataset "$DATASET" false "" "$TARGET_REMOTE_DATASET" || exit 1
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echo
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echo "--- Done"
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echo
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fi
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}
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for line in $(cat "$ZSC_CONFIG") ; do
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IFS=: read dataset recursive d w m y prefix <<< "$line"
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echo "| ##### Dataset: $dataset Recursive: $recursive Prefix: $prefix d: $d w: $w m: $m y: $y #####"
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echo
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echo
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echo "##### Dataset: $dataset Recursive: $recursive Prefix: $prefix d: $d w: $w m: $m y: $y #####"
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echo
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if [ $recursive = "true" ]; then
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SUBDATASETS=($(zfs list -o name | grep "$dataset/"))
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echo -e "| Subdatasets: ${SUBDATASETS[@]}"
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echo -e '|'
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for p in "${SUBDATASETS[@]}"; do
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init_subdataset $p $dataset | awk '{print "| " $0}' || exit 1
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# Find latest synchronized parente snapshot
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REMOTE_DATASET="$REMOTE_ROOT_DATASET/"$(echo -e "$dataset" | sed -r "s/\//_/g")
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REMOTE_SNAPSHOTS=($(echo -e "$remote_snapshots" | grep "$REMOTE_DATASET@" | cut -d"@" -f 2))
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LOCAL_SNAPSHOTS=($(zfs list -H -t snapshot -o name -s creation "$dataset" | cut -d"@" -f 2))
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for local_snapshot in "${LOCAL_SNAPSHOTS[@]}"; do
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found=false
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for remote_snapshot in "${REMOTE_SNAPSHOTS[@]}"; do
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if [ "$remote_snapshot" = "$local_snapshot" ] ; then
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found=true
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break
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fi
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done
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if [ $found = true ] ; then
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latest_synchronized_snapshot=$local_snapshot
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fi
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done
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echo "Latest synchronized snapshot locally: $latest_synchronized_snapshot"
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echo
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# Init subdatasets
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echo "Subdatasets: ${SUBDATASETS[@]}"
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echo
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for p in "${SUBDATASETS[@]}"; do
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init_subdataset $p $dataset "$latest_synchronized_snapshot" || exit 1
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done
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echo
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echo "----------"
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echo
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fi
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handle_dataset $dataset $recursive $d $w $m $y $prefix | awk '{print "| " $0}' || exit 1
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handle_dataset $dataset $recursive $prefix || exit 1
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echo -e "----------------------------------------------------------------------"
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echo
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echo "----------------------------------------------------------------------"
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echo
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done
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