Appease shellcheck

abra

@@ -1,7 +1,7 @@
 #!/bin/bash
-PROGRAM_NAME=$(basename $0)
+PROGRAM_NAME=""$(basename "$0")
 
-if [ -z $STACK_NAME ] || [ -z $STACK_NAME ]; then
+if [ -z "$STACK_NAME" ] || [ -z "$STACK_NAME" ]; then
 	echo "ERROR: STACK_NAME must be set (e.g. export STACK_NAME=my_cool_app)"
 	exit
 fi
@@ -21,14 +21,14 @@ sub_secret_generate(){
 	SECRET=$1
 	VERSION=$2
 
-	if [ -z $SECRET ] || [ -z $VERSION ]; then
+	if [ -z "$SECRET" ] || [ -z "$VERSION" ]; then
 		echo "Usage: $PROGRAM_NAME secret_generate SECRET VERSION"
 		exit
 	fi
 
 	pwqgen | tee \
 		>(docker secret create "${STACK_NAME}_${SECRET}_${VERSION}" -) \
-		>(pass insert hosts/autonomic-swarm/${STACK_NAME}/${SECRET} -m)
+		>(pass insert "hosts/autonomic-swarm/${STACK_NAME}/${SECRET}" -m)
 }
 
 sub_service_run(){
@@ -36,14 +36,14 @@ sub_service_run(){
 	SH=${2:-/bin/sh}
 
 	CONTAINER=$(docker container ls --format "table {{.ID}},{{.Names}}" \
-		| grep ${STACK_NAME}_${SERVICE} | cut -d',' -f1)
+		| grep "${STACK_NAME}_${SERVICE}" | cut -d',' -f1)
 
-	if [ -z $CONTAINER ]; then
+	if [ -z "$CONTAINER" ]; then
 		echo "Container not found! 🚨"
 		exit
 	fi
 
-	docker exec -it $CONTAINER $SH
+	docker exec -it "$CONTAINER" "$SH"
 }
 
 sub_deploy (){
@@ -54,7 +54,7 @@ sub_deploy (){
 	echo "Domain: $(tput setaf 2)${DOMAIN}$(tput sgr0)"
 	echo "Stack: $(tput setaf 1)${STACK_NAME}$(tput sgr0)"
 
-	read -p "Continue? (y/[n])? " choice
+	read -rp "Continue? (y/[n])? " choice
 
 	case "$choice" in
 		y|Y ) ;;
@@ -62,7 +62,7 @@ sub_deploy (){
 		* ) return;;
 	esac
 
-	docker stack deploy -c $COMPOSE $STACK_NAME
+	docker stack deploy -c "$COMPOSE" "$STACK_NAME"
 }
 
 subcommand=$1
@@ -72,7 +72,7 @@ case $subcommand in
 		;;
 	*)
 		shift
-		sub_${subcommand} $@
+		"sub_${subcommand}" "$@"
 		if [ $? = 127 ]; then
 			echo "Error: '$subcommand' is not a known subcommand." >&2
 			echo "       Run '$PROGRAM_NAME --help' for a list of known subcommands." >&2