Respect COMPOSE var to make optional services easier

abra

@@ -3,6 +3,10 @@
 PROGRAM_NAME=$(basename "$0")
 ABRA_CONFIG=abra.yml
 
+if [ -z "$COMPOSE" ]; then
+	COMPOSE="compose.yml"
+fi
+
 yml_pattern_exists() {
 	PATTERN=$1
 
@@ -53,7 +57,7 @@ sub_help() {
 	echo ""
 	echo "Subcommands:"
 	echo "    cp SRC_PATH SERVICE:DEST_PATH         copy files to a container"
-	echo "    deploy [COMPOSE_FILE]                 let 'em rip"
+	echo "    deploy                                let 'em rip"
 	echo "    logs SERVICE [ARGS]                   tail logs from a deployed service"
 	echo "    run SERVICE CMD                       run a command in the specified service's container"
 	echo "    run_args SERVICE ARGS CMD             run, passing extra args to docker exec"
@@ -61,6 +65,8 @@ sub_help() {
 	echo "    ... (custom commands)"
 	echo ""
 	echo "Make sure \$STACK_NAME is set using direnv or -a"
+	echo ""
+	echo "Runs compose.yml by default, set e.g. COMPOSE=\"compose.yml compose2.yml\" to override"
 }
 
 sub_secret_generate(){
@@ -112,8 +118,6 @@ sub_run(){
 }
 
 sub_deploy (){
-	COMPOSE=${1:-compose.yml}
-
 	echo "About to deploy:"
 	echo "  Compose: $(tput setaf 3)${PWD}/${COMPOSE}$(tput sgr0)"
 	if [ -n "$DOMAIN" ]; then
@@ -129,7 +133,8 @@ sub_deploy (){
 		* ) return;;
 	esac
 
-	if docker stack deploy -c "$COMPOSE" "$STACK_NAME"; then
+	# shellcheck disable=SC2086
+	if docker stack deploy -c ${COMPOSE/ / -c } "$STACK_NAME"; then
 		if [ -n "$DOMAIN" ]; then
 			echo "$(tput setaf 2)Yay! App should be available at https://${DOMAIN}$(tput sgr0)"
 		else