Attempt to unbork interactive breakage

See https://git.autonomic.zone/coop-cloud/abra/issues/204.

abra

@@ -1846,10 +1846,12 @@ sub_app_run(){
     RUN_USER="-u $abra___user"
   fi
 
+  local -a ARGS="${ARGS:-""}"
+
   if [ "$abra___no_tty" = "true" ]; then
-    ARGS="-i"
+    ARGS+=" -i"
   else
-    ARGS="-it"
+    ARGS+=" -it"
   fi
 
   CONTAINER=$(docker container ls --format "table {{.ID}},{{.Names}}" \
@@ -1862,11 +1864,15 @@ sub_app_run(){
 
   debug "Using container ID ${CONTAINER}"
 
-  # 3wc: we want the "splitting" that shellcheck warns us about, so that -u and
-  # $RUN_USER aren't treated as a single argument:
+  # shellcheck disable=SC2145
+  debug "Running command: docker exec $RUN_USER $ARGS $CONTAINER $@"
+
   # shellcheck disable=SC2086
   docker exec $RUN_USER $ARGS "$CONTAINER" "$@"
 
+  # shellcheck disable=SC2181
+  if [[ $? != 0 ]]; then exit 1; fi
+
   return
 }
 
@@ -2153,14 +2159,14 @@ sub_recipe_lint() {
   fi
 
   # Check that at least one service has Traefik enabled
-  if $YQ e '.services.*.deploy.labels.[] == "traefik.enable=true"' "$compose_file" | grep -q true; then 
+  if $YQ e '.services.*.deploy.labels.[] == "traefik.enable=true"' "$compose_file" | grep -q true; then
     info "Found at least one Traefik-enabled service"
   else
     warning "Can't find any Traefik-enabled service"
   fi
-  
+
   # Healthcheck check (check)
-  if $YQ e -e '.services.*.healthcheck' "$compose_file" > /dev/null 2>&1; then 
+  if $YQ e -e '.services.*.healthcheck' "$compose_file" > /dev/null 2>&1; then
     info "Found a healthcheck for at least one service."
   else
     warning "Can't find any healthchecks."