# source the system specific configuration
[ -f /etc/lsbackups.conf ] && . /etc/lsbackups.conf
+simulate=
+# process command line arguments
+case "$1" in
+ -s) simulate=1;;
+esac
+
# file locations and other values
today=$(date +%Y%m%d%H%M%S)
-isoimage="$imagedir/$today.img"
+isoimage="$imagedir/$today.iso"
isomountdir="$isoimage.mnt"
restorescript="$scriptsdir/restore.sh"
+echo "-> Checking for available disk space on $imagedir"
+available=$(df $imagedir | awk '{print$4}' | grep -E "[0-9]+")
+required=$((imagesizemb*1024))
+[ $required -gt $available ] && err "Not enough space for the backup image on $imagedir"
+
echo "-> Creating directories"
mkdir --mode=700 -p $datadir $imagedir $isomountdir $tmpdir
-if [ $? != 0 ]
-then
- if test -d $isomountdir
- then
- rm -rf $isomountdir
- fi
- echo "-E- Unable to create the following directories: "
- echo " $datadir $imagedir $isomountdir $tmpdir"
- exit -1
+if [ $? != 0 ]; then
+ test -d $isomountdir && rm -rf $isomountdir
+ err "Unable to create the following directories:
+ $datadir $imagedir $isomountdir $tmpdir"
fi
echo "-> Creating the iso image in $isoimage"
-dd if=/dev/null of=$isoimage bs=1M count=0 seek=4440
-mke2fs -b 2048 -F $isoimage
-if [ $? != 0 ]
-then
+dd of=$isoimage bs=1M count=0 seek=$imagesizemb
+
+[ $? != 0 ] && err "dd failed to create $isoimage"
+
+mke2fs -b $blocksize -F $isoimage
+if [ $? != 0 ]; then
rm -rf $isomountdir $isoimage
- echo "-E- Unable to create the iso image: $isoimage"
- exit -1
+ err "Unable to create the iso image: $isoimage"
+fi
+
+e2label $isoimage $today
+if [ $? != 0 ]; then
+ rm -rf $isomountdir $isoimage
+ err "Unable to label the iso image: $isoimage"
fi
echo "-> Mounting the iso image"
mount -t ext2 -o loop $isoimage $isomountdir
-if [ $? != 0 ]
-then
+if [ $? != 0 ]; then
rm -rf $isomountdir $isoimage
- echo "-E- Unable to mount the iso image: $isoimage -> $isomountdir"
- exit -1
+ err "Unable to mount the iso image: $isoimage -> $isomountdir"
fi
echo "-> Directories being backedup and excluded:"
echo "-> Running find to get the status of files"
{
for type in d f l; do
- findformat="$type %#m %u %g %s %CY%Cm%Cd%CH%CM%CS 0 %p\0"
- if [ -z $excludeddirs ]
- then
+ findformat="$type %#m %u %g %s %TY%Tm%Td%TH%TM%TS 0 %p\0"
+ if [ -z "$excludedirs" ]; then
find $backupdirs -type $type -printf "$findformat"
else
- regex=`echo $excludedirs | sed -e 's/ /.*\\\\|/g'`
- regex=`echo "'\($regex.*\)'"`
- find $backupdirs -type $type -o -regex $regex -prune -o -printf "$findformat"
+ echo $excludedirs | sed -e 's/ /\n/g' > $tmpdir/excluded
+ find $backupdirs -type $type -printf "$findformat" | grep -z -v -f $tmpdir/excluded
fi
done
} > $currentfiles
+if [ -n "$simulate" ]; then
+ backupdbin=$backupdbout
+fi
+
echo "-> Determining list of files to backup with lsbackups"
{
# lsbackups expects the current date followed by a null before the list of files
cat $currentfiles
} | lsbackups > $backups 2>$statusfile
+if [ -n "$simulate" ]; then
+ umount $isomountdir
+ rm -rf $isomountdir $isoimage
+ cat $statusfile
+ echo "-> Simulated backup complete! Backup database: $backupdbout"
+ exit;
+fi
+
echo "-> Running rsync to pack the image"
rsyncopts="-W -H -S -l -p -t -g -o -0 --files-from=- --stats --progress"
cat $backups | rsync $rsyncopts / $isomountdir
-if [ $? != 0 ]
-then
+if [ $? != 0 ]; then
umount $isomountdir
- rm -rf $isomountdir $isoimage
- echo "-E- Unable to rsync to pack the image"
- exit -1
+ rm -rf $isomountdir $isoimage $backupdbout
+ err "Unable to rsync to pack the image"
fi
echo "-> Copying over database and status file"
-cp $statusfile $backupdb $restorescript $isomountdir
-if [ $? != 0 ]
-then
- echo "-E- Unable to copy the database and status file"
- exit -1
-fi
+cp $backupdbout $isomountdir/$(basename $backupdbin)
+[ $? != 0 ] && err "Unable to copy the database to $isomountdir"
+
+cp $statusfile $restorescript $isomountdir
+[ $? != 0 ] && err "Unable to copy the status file to $isomountdir"
echo "-> Unmounting image"
umount $isomountdir
-if [ $? != 0 ]
-then
- echo "-E- Unable to unmount the iso dir: $isomountdir"
- exit -1
-fi
+
+[ $? != 0 ] && err "Unable to unmount the iso dir: $isomountdir"
echo "-> Calculating md5sum for image"
md5sum $isoimage | awk '{print$1}' > $isoimage.md5sum
-if [ $? != 0 ]
-then
- echo "-E- Unable to calculatethe md5sum for this image: $isoimage"
- exit -1
-fi
+
+[ $? != 0 ] && err "Unable to calculate the md5sum for this image: $isoimage"
+[ -z "$isoimage.md5sum" ] && err "Unable to calculate the md5sum for this image: $isoimage"
+[ -s "$isoimage.md5sum" ] || err "Unable to calculate the md5sum for this image: $isoimage"
cat $statusfile | mailx -s "DVD image available to burn - $today" $mailto
echo $today > $lastbackupfile
+echo "-> Moving new database to $backupdbin"
+mv $backupdbout $backupdbin
+[ $? != 0 ] && err "Unable to move backupdb: $backupdbout to $backupdbin"