ScriptFanix/remote-backup
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This commit is contained in:
Vincent Riquer 2010-08-31 14:50:17 +02:00
parent 09587f0ea4
commit 1dadcf3b9f
1 changed files with 14 additions and 14 deletions
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remote-backup
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@ -79,7 +79,7 @@ do
if [[ "$REMOUNT" == "true" ]] if [[ "$REMOUNT" == "true" ]]
then then
# attempt to remount the RW mount point as RW; else abort # attempt to remount the RW mount point as RW; else abort
$MOUNT -o remount,rw $MOUNT_DEVICE $SNAPSHOT_RW ; $MOUNT -o remount,rw "$MOUNT_DEVICE" "$SNAPSHOT_RW" ;
if (( $? )) if (( $? ))
then then
$ECHO "snapshot: could not remount $SNAPSHOT_RW readwrite" $ECHO "snapshot: could not remount $SNAPSHOT_RW readwrite"
@ -95,26 +95,26 @@ do
# rotating snapshots of /home (fixme: this should be more general) # rotating snapshots of /home (fixme: this should be more general)
# step 1: delete the oldest snapshot, if it exists: # step 1: delete the oldest snapshot, if it exists:
if [ -d $SNAPSHOT_RW/$NAME/daily.${MAX_ROTATE} ] if [ -d "$SNAPSHOT_RW/$NAME/daily.${MAX_ROTATE}" ]
then then
$RM -rf $SNAPSHOT_RW/$NAME/daily.${MAX_ROTATE} $RM -rf "$SNAPSHOT_RW/$NAME/daily.${MAX_ROTATE}"
fi fi
# step 2: shift the middle snapshots(s) back by one, if they exist # step 2: shift the middle snapshots(s) back by one, if they exist
for backup_number in $(seq $((${MAX_ROTATE}-1)) -1 1) for backup_number in $(seq $(("${MAX_ROTATE}"-1)) -1 1)
do do
if [ -d $SNAPSHOT_RW/$NAME/daily.${backup_number} ] if [ -d "$SNAPSHOT_RW/$NAME/daily.${backup_number}" ]
then then
$MV $SNAPSHOT_RW/$NAME/daily.${backup_number} \ $MV "$SNAPSHOT_RW/$NAME/daily.${backup_number}" \
$SNAPSHOT_RW/$NAME/daily.$((${backup_number}+1)) "$SNAPSHOT_RW/$NAME/daily.$((${backup_number}+1))"
fi fi
done done
# step 3: make a hard-link-only (except for dirs) copy of the latest snapshot, # step 3: make a hard-link-only (except for dirs) copy of the latest snapshot,
# if that exists # if that exists
if [ -d $SNAPSHOT_RW/$NAME/daily.0 ] if [ -d "$SNAPSHOT_RW/$NAME/daily.0" ]
then then
$CP -al $SNAPSHOT_RW/$NAME/daily.0 $SNAPSHOT_RW/$NAME/daily.1 $CP -al "$SNAPSHOT_RW/$NAME/daily.0" "$SNAPSHOT_RW/$NAME/daily.1"
fi fi
# step 4: rsync from the system into the latest snapshot (notice that # step 4: rsync from the system into the latest snapshot (notice that
@ -126,19 +126,19 @@ do
--delete \ --delete \
--delete-excluded \ --delete-excluded \
--exclude-from="$EXCLUDES" \ --exclude-from="$EXCLUDES" \
--bwlimit=$BWLIMIT \ --bwlimit="$BWLIMIT" \
${REMOTE_LOCATION} \ "${REMOTE_LOCATION}" \
$SNAPSHOT_RW/$NAME/daily.0 "$SNAPSHOT_RW/$NAME/daily.0"
# step 5: update the mtime of daily.0 to reflect the snapshot time # step 5: update the mtime of daily.0 to reflect the snapshot time
$TOUCH $SNAPSHOT_RW/$NAME/daily.0 $TOUCH "$SNAPSHOT_RW/$NAME/daily.0"
# and thats it for home. # and thats it for home.
# now remount the RW snapshot mountpoint as readonly # now remount the RW snapshot mountpoint as readonly
if [[ "$REMOUNT" == "true" ]] if [[ "$REMOUNT" == "true" ]]
then then
$MOUNT -o remount,ro $MOUNT_DEVICE $SNAPSHOT_RW $MOUNT -o remount,ro "$MOUNT_DEVICE" "$SNAPSHOT_RW"
if (( $? )) if (( $? ))
then then
$ECHO "snapshot: could not remount $SNAPSHOT_RW readonly" $ECHO "snapshot: could not remount $SNAPSHOT_RW readonly"