From b9698550f0d56cac70f1dd2998cc55eb71c4487a Mon Sep 17 00:00:00 2001
From: Vincent Riquer <v.riquer@b2f-concept.com>
Date: Tue, 31 Aug 2010 14:40:39 +0200
Subject: [PATCH] implement multi-backup

---
 remote-backup | 101 ++++++++++++++++++++++++++------------------------
 1 file changed, 53 insertions(+), 48 deletions(-)

diff --git a/remote-backup b/remote-backup
index 74a3758..5390260 100755
--- a/remote-backup
+++ b/remote-backup
@@ -60,82 +60,87 @@ then
 fi
 ###END: generic tool checker
 
-source /etc/remote-backup.conf
+for config in /etc/remote-backup/*/config
+do
+	source /etc/remote-backup/defaults.conf
+	source "$config"
 
-echo "Debut de backup de ${REMOTE_LOCATION} vers ${SNAPSHOT_RW}/${DEST}/ a $(date)"
+	echo "Debut de backup de ${REMOTE_LOCATION} vers ${SNAPSHOT_RW}/${DEST}/ a $(date)"
 
 # ------------- the script itself --------------------------------------
 
 # make sure we're running as root
-if [ ! $UID -eq 0 ]
-then
-	$ECHO "Sorry, must be root.  Exiting..."
-	exit
-fi
-
-if [[ "$REMOUNT" == "true" ]]
-then
-	# attempt to remount the RW mount point as RW; else abort
-	$MOUNT -o remount,rw $MOUNT_DEVICE $SNAPSHOT_RW ;
-	if (( $? ))
+	if [ ! $UID -eq 0 ]
 	then
-		$ECHO "snapshot: could not remount $SNAPSHOT_RW readwrite"
+		$ECHO "Sorry, must be root.  Exiting..."
 		exit
 	fi
-fi
+
+	if [[ "$REMOUNT" == "true" ]]
+	then
+# attempt to remount the RW mount point as RW; else abort
+		$MOUNT -o remount,rw $MOUNT_DEVICE $SNAPSHOT_RW ;
+		if (( $? ))
+		then
+			$ECHO "snapshot: could not remount $SNAPSHOT_RW readwrite"
+			exit
+		fi
+	fi
 
 # rotating snapshots of /home (fixme: this should be more general)
 
 # step 1: delete the oldest snapshot, if it exists:
-if [ -d $SNAPSHOT_RW/$DEST/daily.${MAX_ROTATE} ]
-then
-	$RM -rf $SNAPSHOT_RW/$DEST/daily.${MAX_ROTATE}
-fi
+	if [ -d $SNAPSHOT_RW/$DEST/daily.${MAX_ROTATE} ]
+	then
+		$RM -rf $SNAPSHOT_RW/$DEST/daily.${MAX_ROTATE}
+	fi
 
 # step 2: shift the middle snapshots(s) back by one, if they exist
-for backup_number in $(seq $((${MAX_ROTATE}-1)) -1 1)
-do
-	if [ -d $SNAPSHOT_RW/$DEST/daily.${backup_number} ]
-	then
-		$MV $SNAPSHOT_RW/$DEST/daily.${backup_number} \
-			$SNAPSHOT_RW/$DEST/daily.$((${backup_number}+1))
-	fi
-done
+	for backup_number in $(seq $((${MAX_ROTATE}-1)) -1 1)
+	do
+		if [ -d $SNAPSHOT_RW/$DEST/daily.${backup_number} ]
+		then
+			$MV $SNAPSHOT_RW/$DEST/daily.${backup_number} \
+				$SNAPSHOT_RW/$DEST/daily.$((${backup_number}+1))
+		fi
+	done
 
 # step 3: make a hard-link-only (except for dirs) copy of the latest snapshot,
 # if that exists
-if [ -d $SNAPSHOT_RW/$DEST/daily.0 ]
-then
-	$CP -al $SNAPSHOT_RW/$DEST/daily.0 $SNAPSHOT_RW/$DEST/daily.1
-fi
+	if [ -d $SNAPSHOT_RW/$DEST/daily.0 ]
+	then
+		$CP -al $SNAPSHOT_RW/$DEST/daily.0 $SNAPSHOT_RW/$DEST/daily.1
+	fi
 
 # step 4: rsync from the system into the latest snapshot (notice that
 # rsync behaves like cp --remove-destination by default, so the destination
 # is unlinked first.  If it were not so, this would copy over the other
 # snapshot(s) too!
-$RSYNC \
-	-a \
-	--delete \
-	--delete-excluded \
-	--exclude-from="$EXCLUDES" \
-	--bwlimit=$BWLIMIT \
-	${REMOTE_LOCATION} \
-	$SNAPSHOT_RW/$DEST/daily.0
+	$RSYNC \
+		-a \
+		--delete \
+		--delete-excluded \
+		--exclude-from="$EXCLUDES" \
+		--bwlimit=$BWLIMIT \
+		${REMOTE_LOCATION} \
+		$SNAPSHOT_RW/$DEST/daily.0
 
 # step 5: update the mtime of daily.0 to reflect the snapshot time
-$TOUCH $SNAPSHOT_RW/$DEST/daily.0
+	$TOUCH $SNAPSHOT_RW/$DEST/daily.0
 
 # and thats it for home.
 
 # now remount the RW snapshot mountpoint as readonly
-if [[ "$REMOUNT" == "true" ]]
-then
-	$MOUNT -o remount,ro $MOUNT_DEVICE $SNAPSHOT_RW
-	if (( $? ))
+	if [[ "$REMOUNT" == "true" ]]
 	then
-		$ECHO "snapshot: could not remount $SNAPSHOT_RW readonly"
-		exit
+		$MOUNT -o remount,ro $MOUNT_DEVICE $SNAPSHOT_RW
+		if (( $? ))
+		then
+			$ECHO "snapshot: could not remount $SNAPSHOT_RW readonly"
+			exit
+		fi
 	fi
-fi
 
-echo "Fin de backup de ${REMOTE_LOCATION} vers ${SNAPSHOT_RW}/${DEST}/ a $(date)"
+	echo "Fin de backup de ${REMOTE_LOCATION} vers ${SNAPSHOT_RW}/${DEST}/ a $(date)"
+	echo '-----------------------------------------------------------------------'
+done