add support for docker-based 'mocha suv new'

mocha-suv/common/libexec/mocha-suv

@@ -5,6 +5,7 @@
 # mocha suv down
 # mocha suv new
 
+
 USE_VAGRANT="false"
 VAGRANT_MOCHADIR=~/Documents/Vagrant/mocha
 VAGRANT_MACHINESDIR=$VAGRANT_MOCHADIR/machines
@@ -288,6 +289,29 @@ elif [ "$1" == "delete" ]; then
 
 elif [ "$1" == "new" ]; then
 
+	shift;
+
+	BACKEND="vagrant"
+	
+	while true; do
+		case "$1" in
+			-b | --backend ) BACKEND="$2"; shift 2 ;;
+			-- ) shift; break ;;
+			* ) break ;;
+		esac
+	done
+
+	if [ "$BACKEND" == "vagrant" ]; then
+
+		command -v vagrant 2>&1 >/dev/null
+		Q=$?
+
+		if [ $Q -eq 1 ]; then
+
+			echo "error: backend 'vagrant' not found"
+
+		else
+
 			cd $VAGRANT_MOCHADIR
 
 			BGS=""
@@ -303,6 +327,18 @@ elif [ "$1" == "new" ]; then
 
 			./provision $BGS
 
+		fi
+
+	elif [ "$BACKEND" == "docker" ]; then
+
+		/usr/lib/mocha/docker/docker-run
+
+	else
+	
+		echo "unknown backend '$BACKEND'"
+
+	fi
+
 else
 	echo "usage: mocha suv new [--transient] | (up|down|shell|delete MACHINENAME) | list"