#!/bin/sh
-PATH=$(dirname $0):/bin:/usr/bin
+export PATH=$(dirname $0):/bin:/usr/bin:/sbin
+# source the default configuration
. config.sh
-# If the noburn file is there then don't burn.
-[ -f "$burnlockfile" ] && exit 0
+# source the system specific configuration
+[ -f /etc/lsbackups.conf ] && . /etc/lsbackups.conf
-# Discover disk images by looking for .img.md5sum files in $imagedir
-imgmd5=$(ls $imagedir/*.img.md5sum | head -n 1)
+# If the noburn file is there then don't burn.
+[ -f "$noburnfile" ] && exit 0
-logfile=$(tempfile)
+# Discover disk images by looking for .iso.md5sum files in $imagedir
+imgmd5=$(ls $imagedir/*.iso.md5sum 2>/dev/null | head -n 1)
# If we didn't find an non-empty file then exit gracefully
[ -z "$imgmd5" ] && exit 0
[ -s "$imgmd5" ] || exit 0
+logfile=$(tempfile)
+
# Get the name of the disk image by stripping off the tailing '.md5sum'
img=${imgmd5%.md5sum}
+touch $noburnfile
+
+# Now check to see if we need to cache the image to a local drive before burning the image
+if [[ $cacheburnimg == 1 && -d $cacheburnimgdir ]]; then
+ rsync -av --exclude '*.mnt' $img* $cacheburnimgdir >> $logfile 2>&1
+ if [ $? != 0 ]; then
+ sleep 60
+ rsync -av --exclude '*.mnt' $img* $cacheburnimgdir >> $logfile 2>&1
+ if [ $? != 0 ]; then
+ cat $logfile | mailx -s "backups: failed to cache $img to local dir $cacheburnimgdir !!!" $mailto
+ exit 1
+ fi
+ fi
+ img=$cacheburnimgdir/$(basename "$img")
+fi
+
# A little paranoia. Make sure the disk image file is there.
[ -z "$img" ] && exit 1
[ -s "$img" ] || exit 1
+# To avoid buffer underruns I'm going to stop cron and renice myself
+$cronstopstart stop
+renice -10 $$
+
# Burn the image to a disk.
-cdrecord-wrapper.sh -dao dev=$sdev $isoimage > $logfile 2>&1
+cdrecord-wrapper.sh $cdrecordopts dev=$sdev $img >> $logfile 2>&1
-if [ 0 != "$?" ]; then
+if [ "0" != "$?" ]; then
echo >&2 "cdrecord failed!"
+ $cronstopstart start
+ cat $logfile | grep -v -e '[\b\r]' | mailx -s "backups: failed to burn $img!!!" $mailto
exit 1
fi
+# We don't need to be high-priority anymore.
+renice 0 $$
+$cronstopstart start
+
+# I don't know if this *really* helps but give cdrecord a chance to clean up.
+sleep 60
+
# Now verify the disk by running md5sum on the entire contents of the disk
md5sum=$(tempfile)
-dd if=$dev bs=1M count=4440 2>$logfile | md5sum | awk '{print$1}' > $md5sum
+dd if=$dev bs=1M count=$imagesizemb 2>>$logfile | md5sum | awk '{print$1}' > $md5sum
# Check that the md5sums match
-if ! cmp $md5sum $isoimage.md5sum; then
- echo "Failed" | mailx -s "DVD md5sum doesn't match image file!!!" $mailto
+if ! cmp $md5sum $img.md5sum; then
+ echo "md5sum check FAILED" >> $logfile
+ echo "dd if=$dev bs=1M count=$imagesizemb 2>>$logfile | md5sum | awk '{print\$1}' > $md5sum" >> $logfile
+ e2label $dev >> $logfile 2>&1
+ cat $logfile | grep -v -e '[\b\r]' | mailx -s "DVD md5sum doesn't match image file!!!" $mailto
exit 1
fi
# Record the date in the stat file to indicate that this burn was a success
date >> $img.stat
-touch $burnlockfile
+# Update the source file stat file if we burned a cached copy of the image
+[[ $cacheburnimg == 1 && -d $cacheburnimgdir ]] && date >> ${imgmd5%.md5sum}.stat
{ # Send e-mail
echo "Image md5sum:"
cat $img.md5sum
echo
echo "md5sum of burned disks:"
+ cat $md5sum
+ echo
cat $img.stat
echo
cat $logfile
-} | mailx -s "DVD burned. File it as ${img%.*}" $mailto > $logfile 2>&1
+} | grep -v -e '[\b\r]' | mailx -s "DVD burned. File as $(basename ${img%.*})" $mailto >> $logfile 2>&1
# Two lines in the stat file indicate two successful burns. Clean-up the image.
-if [ "$(wc -l $img.stat 2>/dev/null)" == "2" ]; then
- # Burned the image twice. Removing it and associated files!
+if [ "$(wc -l $img.stat 2>/dev/null | awk '{print$1}')" == "$makeXcopies" ]; then
+ # Burned the image $makeXcopies number of times. Removing it and associated files!
+ if [[ $cacheburnimg == 1 && -d $cacheburnimgdir ]]; then
+ # Remove our cached copy of the image, its md5sum, and stat file
+ rm -f $img{,.md5sum,.stat}
+ # Now restore our $img variable to point back to the original source file
+ img=${imgmd5%.md5sum}
+ fi
rm -f $img{,.md5sum,.stat}
[ -d $img.mnt ] && rmdir $img.mnt
fi
+