umask 027
-#selve backupen
-# krever at noen variabler er satt
-# krever at vi er i rett katalog
backup()
{
echo -n `date` >&2
printf " $computer: $computer:$filesystem $backuplevel backup\n" >&2
+ SNARFILE="${storagedir}/${computer}/${sfilesystem}/.incremental.snar"
+ incrementalsnar="/root/.backup/${sfilesystem}.snar"
if [ "$backuplevel" = "daglig" ]
then
- lastd=`cat ../.date`
- lastcmd="--newer='$lastd'"
+ # If incremental backup, we need to copy the incremental status to $computer.
+ # If it does not exist, whine a bit and then run date-based instead.
+ if [ -s "$SNARFILE" ]; then
+ if ! scp $SNARFILE root@$computer:$incrementalsnar; then
+ echo `date`" $computer: Could not copy .incremental.snar to $computer"
+ die
+ fi
+ lastcmd="--listed-incremental=$incrementalsnar --no-check-device"
+ else
+ echo `date`" $computer: Missing incremental.snar for $filesystem, doing date-based backup instead until next full backup" >&2
+ incrementalsnar=""
+ lastd=`cat ../.date`
+ lastcmd="--newer='$lastd'"
+ fi
else
- lastcmd=""
+ lastcmd="--listed-incremental=$incrementalsnar"
fi
# expand the exclude-path for use with tar
if [ $? -eq 0 ] && [ -s $TARFILE ]; then
# File is >0 in size and neither cat or tar tzvf failed; we assume it worked.
+ if ! scp root@$computer:$incrementalsnar $SNARFILE.tmp; then
+ echo `date`" $computer: Could not copy .incremental.snar from $computer"
+ die
+ fi
+
# Move tar file in place
mv $TARFILE $DATE.tgz
+ mv $SNARFILE.tmp $SNARFILE
# Update timestamp
echo $DATEs > ../.date && touch -t $DATE ../.date
- # Make a sorted filelist as well
+ # Make a sorted file list as well
sort -k6 < $DATE.idx > $DATE.sdx
# Fix permissions
# Something wrong happened.
rm $TARFILE
echo `date`" $computer: $TARFILE empty. $backuplevel backup of $computer:$filesystem failed and deleted"
-
- # We don't want to return 0
die
fi
# Try to SSH to the computer without entering a password.
if ! `ssh -n -o NumberOfPasswordPrompts=0 root@$computer /bin/true`; then
echo `date`" $computer: Could not use passwordless SSH."
-
- # We don't want to return 0
die
fi
compressor=gzip
fi
- filesystems=""
-
# Check dump bit in fstab
filesystems=`ssh -n root@$computer "cat /etc/fstab" \
| grep -v nfs \
# Clean up our dir at this client
if ! ssh root@$computer "rm -r ~/.backup ; mkdir -m 700 ~/.backup"; then
- echo `date`" $computer: Could not create backup staging area at $computer:~/.backup - skipping backup of $computer"
+ echo `date`" $computer: Could not create backup staging area at $computer:~/.backup"
die
fi
# Try to copy $exclude to $computer
if ! scp $exclude root@$computer:~/.backup/exclude > /dev/null; then
- echo `date`" $computer: Could not copy exclude.txt to $computer - skipping backup of $computer"
+ echo `date`" $computer: Could not copy exclude.txt to $computer"
die
fi
# Try to copy preeexec and postexec if they exist
if [ -f $confdir/preexec.$computer ]; then
if ! scp $confdir/preexec.$computer root@$computer:~/.backup/preexec >&2; then
- echo `date`" $computer: Could not copy preexec.$computer to $computer:~/.backup/preexec - skipping backup of $computer"
+ echo `date`" $computer: Could not copy preexec.$computer to $computer:~/.backup/preexec"
die
fi
fi
if [ -f $confdir/postexec.$computer ]; then
if ! scp $confdir/postexec.$computer root@$computer:~/.backup/postexec >&2; then
- echo `date`" $computer: Could not copy postexec.$computer to $computer:~/.backup/postexec - skipping backup of $computer"
+ echo `date`" $computer: Could not copy postexec.$computer to $computer:~/.backup/postexec"
die
fi
fi
- # Try to run preexec if it exist
+ # Try to run preexec if it exists
if ! ssh root@$computer "[ ! -f ~/.backup/preexec ] || /bin/bash -x ~/.backup/preexec" >&2; then
- echo `date`" $computer: Could not run $computer:~/.backup/preexec - skipping backup of $computer"
+ echo `date`" $computer: Could not run $computer:~/.backup/preexec"
die
fi
# Prepare storage area
mkdir -m 755 -p $storagedir/$computer/$sfilesystem/full 2>/dev/null
mkdir -m 755 -p $storagedir/$computer/$sfilesystem/daglig 2>/dev/null
- echo $filesystem > ${storagedir}/${computer}/.${sfilesystem}.name
- chmod 644 ${storagedir}/${computer}/.${sfilesystem}.name
# Default backuplevel
backuplevel=daglig
echo $DATEs > $storagedir/$computer/$sfilesystem/.date
fi
- # Check if we want a full backup - Debug statement that causes noise in cron mail:
- # printf " $computer $filesystem: $confdir/fastfullbackupdag.$computer.$sfilesystem\n"
+ # Check if we want a full backup
if [ -f $confdir/fastfullbackupdag.$computer.$sfilesystem ]; then
fullbackup_min_for_this_machine=$dagermellomfulleforfast
if [ "$DAY_OF_MONTH" = "`cat $confdir/fastfullbackupdag.$computer.$sfilesystem`" ]; then