scripts: Add itzks-update-disklserver-squashfs-images for automatic LTSP squashfs updates.

1 files changed, 47 insertions, 0 deletions

diff --git a/sbin/itzks-update-disklserver-squashfs-images b/sbin/itzks-update-disklserver-squashfs-images
new file mode 100755
index 0000000..ad2ebe3
--- /dev/null
+++ b/sbin/itzks-update-disklserver-squashfs-images
@@ -0,0 +1,47 @@
+#!/bin/bash
+
+# Copyright (C) 2018 Mike Gabriel <mike.gabriel@das-netzwerkteam.de>
+#
+# This script is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+#
+# This script is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the
+# Free Software Foundation, Inc.,
+# 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA.
+
+LTSP_OPT="/srv/ltsp"
+
+ltsp_chroots=$(ls $LTSP_OPT | while read chroot_dir; do test ! -h $LTSP_OPT/$chroot_dir -a -x $LTSP_OPT/$chroot_dir/bin/bash && echo -n "$chroot_dir "; done)
+
+for chroot in ${ltsp_chroots}; do
+
+	if [ -e $LTSP_OPT/$chroot/chroot-upgrade-in-process ]; then
+		echo "Chroot $LTSP_OPT/$chroot is currently being upgraded. Skipping..."
+		continue
+	fi
+
+	latest_upgrade=$(ls $LTSP_OPT/$chroot | grep -E 'chroot-updated_[0-9]{8}$' | sort | tail -n1)
+
+	if [ -z "${latest_upgrade}" ]; then
+		echo "chroot $LTSP_OPT/$chroot lacks the chroot-updated_<date> file. Can't proceeed. Skipping..."
+		continue
+	fi
+
+	if [ -e "$LTSP_OPT/$chroot/${latest_upgrade}.squashfs-created" ]; then
+		echo "chroot $LTSP_OPT/$chroot's squashfs image is up-to-date. Skipping..."
+	else
+		if ltsp-update-image $chroot; then 
+			rm -f $LTSP_OPT/$chroot/$chroot-updated_*.squashfs-created
+			touch $LTSP_OPT/$chroot/${latest_upgrade}.squashfs-created
+		fi
+	fi 
+
+done