This is an automated email from the git hooks/post-receive script. x2go pushed a commit to branch feature/openbox in repository live-build-x2go.
commit 34a22d954a0a4b1534833d572d3dd936745a87f4 Author: Stefan Baur (BAUR-ITCS) <[email protected]> Date: Fri Dec 16 17:35:02 2016 +0100 added autoupdate script --- .../lib/live/config/2300-autoupdate | 394 ++++++++++++++++++++ 1 file changed, 394 insertions(+) diff --git a/config/includes.chroot/lib/live/config/2300-autoupdate b/config/includes.chroot/lib/live/config/2300-autoupdate new file mode 100755 index 0000000..324f62a --- /dev/null +++ b/config/includes.chroot/lib/live/config/2300-autoupdate @@ -0,0 +1,394 @@ +#!/bin/sh + +cleanup () +{ # discard contents of tmpfs, umount if necessary + if [ -n "$NTFSROOT" ]; then + echo "Removing '$TEMPDIR/*'." + rm -rf $TEMPDIR/* + else + echo "Unmounting '$TEMPDIR'." + umount $TEMPDIR + fi + if rmdir $TEMPDIR; then + echo "Removed empty directory '$TEMPDIR'." + else + echo "Could not remove directory '$TEMPDIR'." + fi + if [ -n "$NTFSROOT" ]; then + if umount $MOUNTPOINT; then + echo "Unmounted '$MOUNTPOINT'." + else + echo "Could not unmount '$MOUNTPOINT'." + fi + fi +} + +AutoUpdateMain () +{ +# Output startup message +# +echo -n " autoupdater (backgrounding update task)" + + +# Background everything +# +( + + +# redirect all output to console #10 +# +exec >/dev/tty10 2>&1 + + +# clear console +# +clear + + +# This is so grep, awk and sed will match the right terms regardless of LANG +# +unset LANG +unset LC_ALL +unset LC_MESSAGES + + +# download url pointing to directory with all required files goes here +DOWNLOADURL=$(cat /proc/cmdline | \ + tr ' ' '\n' | \ + awk -F'=' ' /^updateurl=/ { print $2 }') + +if [ -z "$\DOWNLOADURL" ]; then + echo "No update URL. Exiting." + return 0 +fi + +# Bandwidth limit goes here +# +#BWLIMITPERCENT=20 # in percent, numeric-only +BWLIMITPERCENT=$(cat /proc/cmdline | \ + tr ' ' '\n' | \ + awk -F'=' ' /^bwlimit=/ { print $2 }') +if [ -z "$\BWLIMITPERCENT" ]; then + BWLIMITPERCENT=20 + echo "Bandwidth limit not set. Defaulting to 20%." +fi + + + +# sleeping a random amount of time to ease load on the update server +# +SLEEPTIME=0 +echo -n "Calculating random update delay (120-900 seconds)..." +while [ $SLEEPTIME -lt 120 ]; do + echo -n "." + # During startup, script is run with /bin/sh, + # even when #!/bin/bash is set, + # so we need to improvise. + RND=$(/bin/bash -c 'echo $RANDOM') + SLEEPTIME=$((RND%900)) +done +echo " " +echo "Sleeping for $SLEEPTIME seconds ..." +sleep $SLEEPTIME + + +# Define our mountpoint and check if we're capable of auto-updating +NTFSROOT=$(cat /proc/cmdline | tr ' ' '\n' | awk -F '=' '/^ntfs-uuid/ { print $2 }') +if [ -n "$NTFSROOT" ]; then + mkdir -p /lib/live/mount/ntfsroot + mount -t ntfs-3g -rw /dev/disk/by-uuid/$NTFSROOT /lib/live/mount/ntfsroot + MOUNTPOINT="/lib/live/mount/ntfsroot/" + # create a temporary directory + TEMPDIR=$(mktemp -d --tmpdir=$MOUNTPOINT) +else + MOUNTPOINT="/lib/live/mount/findiso/" + # create a temporary directory and mount a tmpfs there + TEMPDIR=$(mktemp -d --tmpdir=/mnt) + IMGSIZE=$(df /lib/live/mount/medium | awk ' /medium/ { print $2}') + mount -t tmpfs -osize=$((IMGSIZE*15/10))k tmpfs $TEMPDIR + +fi +if ! ( [ -d "$MOUNTPOINT/boot/live-download" ] && \ + ( \ + [ -d "$MOUNTPOINT/boot/live1" ] || \ + [ -d "$MOUNTPOINT/boot/live2" ] \ + ) \ + ); then + [ -n "$NTFSROOT" ] && umount $MOUNTPOINT + echo "No directories suitable for update." + return 0 # directories missing, most likely not a writeable medium +fi + + +# define and figure out some paths that we will be needing later on +# +if [ -f "$MOUNTPOINT/syslinux.cfg" ]; then + SYSLINUXPATH="$MOUNTPOINT/" +elif [ -f "$MOUNTPOINT/syslinux/syslinux.cfg" ]; then + SYSLINUXPATH="$MOUNTPOINT/syslinux/" +elif [ -f "$MOUNTPOINT/menu.lst" ]; then + GRUBPATH="$MOUNTPOINT/" +elif [ -f "$MOUNTPOINT/boot/menu.lst" ]; then + GRUBPATH="$MOUNTPOINT/grub/" +elif [ -f "$MOUNTPOINT/boot/grub/menu.lst" ]; then + GRUBPATH="$MOUNTPOINT/boot/grub/" +else + [ -n "$NTFSROOT" ] && umount $MOUNTPOINT + echo "No suitable bootloader found." + return 1 +fi + +RUNNINGSYSTEMFULLPATH=$(dirname $(readlink -m "$MOUNTPOINT/$(cat /proc/cmdline | \ + tr ' ' '\n' | \ + awk -F'=' ' /^findiso=/ { print $2 }')")) + +ALLSYSTEMSROOT=$(dirname $RUNNINGSYSTEMFULLPATH) +RUNNINGSYSTEMNAME=$(basename $RUNNINGSYSTEMFULLPATH) +if [ "$RUNNINGSYSTEMNAME" = "live1" ]; then + OTHERSYSTEMNAME="live2" +elif [ "$RUNNINGSYSTEMNAME" = "live2" ]; then + OTHERSYSTEMNAME="live1" +else + [ -n "$NTFSROOT" ] && umount $MOUNTPOINT + echo "Unable to determine path/name of running system." + return 1 +fi +OTHERSYSTEMFULLPATH=$(readlink -m "$ALLSYSTEMSROOT/$OTHERSYSTEMNAME") +DOWNLOADPATH=$(readlink -m "$ALLSYSTEMSROOT/live-download/") + + +# Now we'll copy the content of the live-download folder to our tempdir +# this is so we can run wget in update mode (-N) or rsync without needing +# write access to our boot medium (write access means increased wear and tear, +# and we want to avoid that especially for media that has no wear-leveling +# like CF cards) +# +while ! rsync -aPv --inplace --modify-window=1 $DOWNLOADPATH/ $TEMPDIR; do + echo "Sleeping 30 seconds ..." + sleep 30 + echo "Retrying ..." +done + + +# Now let's figure out if we're supposed to use wget or rsync for downloading +# +if echo "$DOWNLOADURL" | grep -q "^http" || \ + echo "$DOWNLOADURL" | grep -q "^ftp" + then + # Attempt to determine available bandwidth & to set BWLIMIT accordingly + wget -Nr -o /tmp/dl.log -P /tmp/ -nd \ + --progress=bar:force $DOWNLOADURL/initrd.img + cp --update "/tmp/initrd.img" "$TEMPDIR" + rm "/tmp/initrd.img" + SIZEFACTORSTRING=$( awk -F' |\(|\)' ' $9 == "saved" && \ + $7 == "-" { print $5 }' /tmp/dl.log \ + ) + case $SIZEFACTORSTRING in + "" | \ + [0-9]) echo -n "Not enough Bandwidth for update task - " + echo -n "aborting." + cleanup + return 0 + ;; + "KB/s") SIZEFACTOR=1;; + "MB/s") SIZEFACTOR=1024;; + "GB/s") SIZEFACTOR=1048576;; + *) SIZEFACTOR=$((1024*1024*1024));; + esac + DLRATE=$( awk -F' |\(|\)' ' $9 == "saved" && $7 == "-" \ + { print $4 }' /tmp/dl.log \ + ) + BWLIMIT=$( echo "$DLRATE $SIZEFACTOR $BWLIMITPERCENT" | \ + awk ' { print $1*$2*$3/100 }' | \ + awk -F'.' '{ print $1 }' \ + ) # outputs integer kilobytes, not rounded + echo "Determined bandwidth limit: '$BWLIMIT KB/s'" + DOWNLOADCOMMAND="wget -Nr -l 1 -nd -P "$TEMPDIR" \ + --limit-rate=${BWLIMIT}k $DOWNLOADURL" + +elif echo "$DOWNLOADURL" | grep -q "^rsync"; then + + rsync -hh -aPv -W --inplace --log-file=/tmp/dl.log $DOWNLOADURL/initrd.img \ + $TEMPDIR/initrd.img.new + mv $TEMPDIR/initrd.img.new $TEMPDIR/initrd.img + SIZEFACTORSTRING=$( sed -e's_\(. bytes/sec\)_ \1_' /tmp/dl.log | \ + awk '$4 == "sent" && $12 == "bytes/sec" \ + { print $11 }' \ + ) + case $SIZEFACTORSTRING in + "" | \ + [0-9]) echo -n "Not enough Bandwidth for update task - " + echo -n "aborting." + cleanup + return 0 + ;; + "K") SIZEFACTOR=1;; + "M") SIZEFACTOR=1024;; + "G") SIZEFACTOR=$((1024*1024));; + *) SIZEFACTOR=$((1024*1024*1024));; + esac + DLRATE=$( sed -e's_\(. bytes/sec\)_ \1_' /tmp/dl.log | \ + awk '$4 == "sent" && $12 == "bytes/sec" \ + { print $10 }') + BWLIMIT=$( echo "$DLRATE $SIZEFACTOR $BWLIMITPERCENT" | \ + awk ' { print $1*$2*$3/100 }' | \ + awk -F'.' '{ print $1 }' \ + ) # outputs integer kilobytes, not rounded + echo "Determined bandwidth limit: '$BWLIMIT KB/s'" + DOWNLOADCOMMAND="rsync -aPv --inplace --bwlimit=$BWLIMIT $DOWNLOADURL/ \ + $TEMPDIR" +else + [ -n "$NTFSROOT" ] && umount $MOUNTPOINT + echo "Unsupported download mechanism." + return 1 +fi +rm /tmp/dl.log + + +# Proceed to download from update location +# +while ! $DOWNLOADCOMMAND; do + echo "Sleeping 30 seconds ..." + sleep 30 + echo "Retrying ..." +done + +# Now check if these files are different from what we already have in our +# download directory on the boot medium +# +echo "Diff'ing '$DOWNLOADPATH' '$TEMPDIR' ..." +if diff -q $DOWNLOADPATH $TEMPDIR \ + >/dev/null + + then + cleanup + echo "Nothing to do. - Files on server not newer than '$DOWNLOADPATH'." + return 0 # current is newest, nothing to do, we want to avoid + # unneccessary writes to the medium +else + echo "Differences detected. Continuing ..." +fi + + +# If we made it past that point, it's time to update the boot medium, so let's +# remount it rw and async for speed +# +if mount -oremount,rw,async $MOUNTPOINT; then + echo "Remounted '$MOUNTPOINT' as rw and async." +else + echo "Could not remount '$MOUNTPOINT' as rw and async." +fi + + +# Now, we don't want to copy an index.htm(l) file, so let's do away with that +# +rm -f $TEMPDIR/index.ht* + + +# move everything over to the boot medium +# +echo "Moving $TEMPDIR/* => $DOWNLOADPATH" +mv $TEMPDIR/* $DOWNLOADPATH +cleanup # FIXME ist dieses Cleanup gerechtfertigt oder macht es dummfoog? +if [ -n "$NTFSROOT" ]; then + echo "NTFSROOT detected. Attempting to mount '/dev/disk/by-uuid/$NTFSROOT'." + if mount -t ntfs-3g -rw /dev/disk/by-uuid/$NTFSROOT /lib/live/mount/ntfsroot; then + echo "Mount successful." + else + echo "Failed to mount NTFSROOT." + fi +fi + + +# let's check if we just downloaded a copy of our running system +# +echo "Diff'ing '$DOWNLOADPATH' '$RUNNINGSYSTEMFULLPATH'" +if diff -q $DOWNLOADPATH $RUNNINGSYSTEMFULLPATH >/dev/null && \ + [ -d "$OTHERSYSTEMFULLPATH" ] ; then + [ -n "$NTFSROOT" ] && umount $MOUNTPOINT + echo "Nothing to do. Content of $DOWNLOADPATH equals" \ + "$RUNNINGSYSTEMNAME." + return 0 # current is newest, nothing to do, + # we want to keep the old system in OTHERSYSTEMFULLPATH + # as a fallback +fi + + +# make sure our destination path really exists +# +mkdir -p $OTHERSYSTEMFULLPATH + + +# let's check if our destination is already up to date or needs updating +# +echo "Diff'ing '$DOWNLOADPATH' '$OTHERSYSTEMFULLPATH'" +if diff -q $DOWNLOADPATH $OTHERSYSTEMFULLPATH >/dev/null; then + [ -n "$NTFSROOT" ] && umount $MOUNTPOINT + echo "Nothing to do - content of '$DOWNLOADPATH' equals"\ + "'$OTHERSYSTEMNAME'." + return 0 # OTHERSYSTEMFULLPATH is already up to date +else + # keep rsyncing until the update is complete + echo "Copying $DOWNLOADPATH/ => $OTHERSYSTEMFULLPATH" + while ! rsync -aPv --inplace --modify-window=1 $DOWNLOADPATH/ $OTHERSYSTEMFULLPATH + do + echo "Sleeping 30 seconds ..." + sleep 30 + echo "Retrying ..." + done +fi + + +# change default boot to the image we just downloaded and installed +# +if [ -n "$SYSLINUXPATH" ]; then + echo "Changing syslinux default to $OTHERSYSTEMNAME-486." + sed -i -e"/^default/cdefault $OTHERSYSTEMNAME-486" \ + $SYSLINUXPATH/syslinux.cfg + +elif [ -n "$GRUBPATH" ]; then + MENULST=$GRUBPATH/menu.lst + CURRENTDEFAULT=$(awk '/^default/ { print $2 }' $MENULST | tr -d '\r') + CURRENTTITLEPOSITION=$(grep '^title' $MENULST | grep -n "${RUNNINGSYSTEMNAME}-486" | awk -F':' '$2 ~ /'"${RUNNINGSYSTEMNAME}-486"'/ { print $1 }') + CURRENTTITLEPOSITION=$((CURRENTTITLEPOSITION-1)) + OTHERTITLEPOSITION=$(grep '^title' $MENULST | grep -n "${OTHERSYSTEMNAME}-486" | awk -F':' '$2 ~ /'"${OTHERSYSTEMNAME}-486"'/ { print $1 }') + OTHERTITLEPOSITION=$((OTHERTITLEPOSITION-1)) + if [ "$CURRENTTITLEPOSITION" = "$CURRENTDEFAULT" ]; then + echo "Changing GRUB-legacy default to $OTHERTITLEPOSITION ..." + sed -i -e"/^default/cdefault $OTHERTITLEPOSITION" \ + $MENULST + else + echo "Not changing GRUB-legacy default." + echo "Reason: We're at boot position '$CURRENTTITLEPOSITION'," + echo "while default is set to position '$CURRENTDEFAULT'." + fi +else + echo "Unsupported bootloader." +fi + +# we're on an async mount point, so let's sync to be safe +# +sync + + +# umount tempdir to free memory +# +if [ -d $TEMPDIR ]; then + cleanup +fi + + +# now, change mount back to ro and sync +# +if [ -n "$NTFSROOT" ]; then + umount $MOUNTPOINT +else + mount -oremount,ro,sync $MOUNTPOINT +fi + +) & + +} + +AutoUpdateMain + -- Alioth's /srv/git/code.x2go.org/live-build-x2go.git//..//_hooks_/post-receive-email on /srv/git/code.x2go.org/live-build-x2go.git _______________________________________________ x2go-commits mailing list [email protected] http://lists.x2go.org/listinfo/x2go-commits
