helpers: Add 'xfce-build describe' command

This command prints the versions of the components built within this container, which are located in the /git folder.

1 files changed, 17 insertions, 7 deletions

diff --git a/helpers/xfce-build b/helpers/xfce-build
index 30298c5..7fd49bf 100755
--- a/helpers/xfce-build
+++ b/helpers/xfce-build
@@ -4,6 +4,8 @@
 # Possible arguments:
 #  - the version of the xfce-build container (if you want to build with a special version)
 #  - 'pull' to simply update the container and exit
+#  - 'version' as second positional argument after an actual version (e.g. xfce-build latest version)
+#     to print all git versions built in the container by build_libs.sh
 
 CONTAINER="xfce/xfce-build"
 VERSION="latest"
@@ -15,19 +17,27 @@ docker_pull () {
 	docker pull xfce/xfce-build:$VERSION
 }
 
+docker_run () {
+	# Run the build in the docker container
+	docker run --rm -u $(id -u ${USER}):$(id -g ${USER}) --volume $VOLUME:/tmp --env CFLAGS="${CFLAGS}" --env CONTAINER=$CONTAINER --env VERSION=$VERSION $CONTAINER:$VERSION /bin/bash -c "${BUILD_CMD}"
+}
+
+# Parse the commandline arguments
 if [ -z "$1" ]; then
 	VERSION="latest"
 elif [[ "$1" == "pull" ]]; then
 	docker_pull
 	exit 0
-else
-	VERSION=$1
+elif [[ "$1" == "describe" ]]; then
+	if [[ ! -z "$2" ]]; then
+			VERSION="$2"
+	fi
+	BUILD_CMD='printf "\e[1m$CONTAINER:$VERSION contains:\e[0m\n";cat /git/xfce_build_version_info.txt'
+	docker_run
+	exit 0
 fi
 
-# Make sure we're running the latest version
+# Run the local build
 docker_pull
-
-# Run the build in the docker container
-docker run --rm -u $(id -u ${USER}):$(id -g ${USER}) --volume $VOLUME:/tmp --env CFLAGS="${CFLAGS}" $CONTAINER:$VERSION /bin/bash -c "${BUILD_CMD}"
-
+docker_run
 printf "\n---\nBuilt using container $CONTAINER:$VERSION on $VOLUME\n"