Add '--keep-running' cli option

CHANGELOG.md

@@ -12,6 +12,8 @@
 - add `run_tests` helper
 - change CLI syntax for choosing vagrant machine to run the tests on
 - enable running just a single test via `run_tests` cli interface
+- add `--keep-running` cli option to continue running vagrant after the tests
+  are done executing
 
 ### v0.2.0, 2015-02-22
 - `setup` script gitignores `tests/helpers.sh`

run_tests

@@ -12,6 +12,7 @@
 
 export BOXES=""
 export FILES=""
+export KEEP_RUNNING=""
 
 # global variable for script exit value
 export EXIT_VALUE=0
@@ -22,6 +23,7 @@ display_help() {
 	echo "  ./run_tests -m ubuntu            # runs tests on ubuntu VM"
 	echo "  ./run_tests -m ubuntu -m centos  # runs tests on ubuntu and cents VMs"
 	echo "  ./run_tests tests/some_test      # run a single test file"
+	echo "  ./run_tests --keep-running       # don't stop vagrant after the tests are done"
 }
 
 parse_arguments() {
@@ -41,6 +43,11 @@ parse_arguments() {
 			shift 2
 			;;
 
+		-k | --keep-running)
+			KEEP_RUNNING="true"
+			shift
+			;;
+
 		-h | --help)
 			display_help
 			exit 0
@@ -81,15 +88,15 @@ run_vagrant() {
 	VAGRANT_CWD=lib/tmux-test/ vagrant up "$box"
 }
 
-# Halt vagrant after tests are done running, unless KEEP_RUNNING environment
-# variable is set to 'true'.
+# Halt vagrant after tests are done running, unless `--keep-running`
+# option is given
 stop_vagrant() {
 	local box="$1"
 	if [ -z "$KEEP_RUNNING" ]; then
 		VAGRANT_CWD=lib/tmux-test/ vagrant halt "$box"
 	else
 		echo
-		echo "KEEP_RUNNING is set. Vagrant not halted."
+		echo "--keep-running option set, Vagrant not halted"
 	fi
 }