playbook/util: make scripts work from any path

playbook/util/diff-playbook

@@ -13,7 +13,7 @@ function cleanup {
 }
 trap cleanup EXIT
 
-HERE=`pwd`
+HERE=`dirname $(realpath $0)`/..
 DFILE=`mktemp -d`
 TFILE="archive.tar.gz"
 cd $DFILE

playbook/util/update-upgrader-timestamp

+cd $(dirname $(realpath $0))/..
 sed -i "s/upgrade_after:.*/upgrade_after: `date +%s`/g" settings/upgrader.yml 

playbook/util/upload-to-cache

+playbook_dir="$(dirname $(realpath $0))/.."
 conf=${1:-/etc/opt/slapcache.cfg}
 conf=$(realpath $conf)
+
+cd $playbook_dir
 rm -f /tmp/archive.tar.gz && tar -czvf /tmp/archive.tar.gz . && slapcache-upload --file=/tmp/archive.tar.gz --slapos-configuration=$conf