Add -f switch, dont remove containers

CHANGELOG.md

@@ -3,6 +3,9 @@ All notable changes to this project will be documented in this file.
 This project adheres to [Semantic Versioning](http://semver.org/).
 
 ## [Unreleased][unreleased]
+### Added
+- Use -f to force rebuild the source.
+- If build fails don't remove intermediate containers
 
 ## [0.5.0] - 2016-03-14
 ### Added

run.sh

@@ -2,14 +2,31 @@
 
 cd $(dirname $0)
 
-SOURCE=$(pwd)/android
-CCACHE=$(pwd)/ccache
+SOURCE=$(readlink -f $(pwd)/android)
+CCACHE=$(readlink -f $(pwd)/ccache)
 CONTAINER_HOME=/home/cmbuild
 CONTAINER=cyanogenmod
 REPOSITORY=stucki/cyanogenmod
 TAG=cm-13.0
 FORCE_BUILD=0
 
+
+while [[ $# > 0 ]]
+do
+key="$1"
+
+case $key in
+    -r|--rebuild)
+    FORCE_BUILD=1
+    ;;
+    *)
+    shift # past argument or value
+    ;;
+esac
+shift
+
+done
+
 # Create shared folders
 mkdir -p $SOURCE
 mkdir -p $CCACHE
@@ -26,14 +43,19 @@ elif [[ $FORCE_BUILD = 1 ]] || ! echo "$IMAGE_EXISTS" | grep -q "$TAG"; then
 
 	echo "Building Docker image $REPOSITORY:$TAG..."
 	docker build -t $REPOSITORY:$TAG .
+	OK=$?
 
 	# After successful build, delete existing containers
 	IS_EXISTING=$(docker inspect -f '{{.Id}}' $CONTAINER 2>/dev/null)
-	if [[ -n "$IS_EXISTING" ]]; then
+	if [[ $OK -eq 0 ]] && [[ -n "$IS_EXISTING" ]]; then
 		docker rm $CONTAINER
 	fi
 fi
 
+if [[ $OK -ne 0 ]]; then
+	exit 1;
+fi
+
 # With the given name $CONTAINER, reconnect to running container, start
 # an existing/stopped container or run a new one if one does not exist.
 IS_RUNNING=$(docker inspect -f '{{.State.Running}}' $CONTAINER 2>/dev/null)