testing: Record strongSwan version when building from source tree

testing/scripts/build-strongswan

@@ -53,6 +53,17 @@ log_action "Remove SWID tags of previous versions"
 execute_chroot 'find /usr/local/share/regid.2004-03.org.strongswan -name *.swidtag -delete'
 
 echo "Building and installing strongSwan"
+
+log_action "Determine strongSwan version"
+desc=`git -C $SWANDIR describe --dirty`
+if [ $? -eq 0 ]; then
+	SWANVERSION="$desc (`git -C $SWANDIR rev-parse --abbrev-ref HEAD`)"
+else
+	SWANVERSION="`cat $SWANDIR/configure.ac | sed -n '/^AC_INIT/{ s/.*,\[\(.*\)\])$/\1/p }'`"
+fi
+echo "$SWANVERSION" > $SHAREDDIR/.strongswan-version
+log_status 0
+
 log_action "Preparing source tree"
 execute_chroot 'autoreconf -i /root/strongswan'