From 280238d95d8934f6db0f5efa952962ceca983ba4 Mon Sep 17 00:00:00 2001
From: 3wc <3wc.git@doesthisthing.work>
Date: Tue, 27 Apr 2021 19:09:39 +0200
Subject: [PATCH] Make `recipe .. release` handle missing `app` service

Closes #151
---
 abra | 19 ++++++++++++++++---
 1 file changed, 16 insertions(+), 3 deletions(-)

diff --git a/abra b/abra
index f477fb8..92f213c 100755
--- a/abra
+++ b/abra
@@ -2020,6 +2020,20 @@ sub_recipe_release() {
   for compose_file in "${compose_files[@]}"; do
     mapfile -t services < <($YQ e -N '.services | keys | .[]' "$compose_file" | sort -u)
 
+    if ! printf '%s\0' "${services[@]}" | grep -Fqxz -- "app"; then
+      # shellcheck disable=SC2016
+      warning 'No `app` service found; which one should we use for the version number?'
+      select service_item in "${services[@]##*/}"; do
+        if [ 1 -le "$REPLY" ] && [ "$REPLY" -le ${#services[@]} ]; then
+          main_service="$service_item"
+          success "Selected ${service_item} as main service"
+          break
+        fi
+      done
+    else
+      main_service="app"
+    fi
+
     for service in "${services[@]}"; do
       # 3wc: skip the "app" service unless we're in compose.yml; this service is
       # often repeated in other compose.*.yml files to extend options, but we only
@@ -2041,7 +2055,7 @@ sub_recipe_release() {
       fi
 
       if [ -z "$latest_version" ] || [ "$force" = "true" ] || [ "$service_tag" != "$latest_tag" ]; then
-        if [ "$service" = "app" ]; then
+        if [ "$service" = "$main_service" ]; then
           new_version="$service_tag"
         fi
         info "Fetching $service_image metadata from Docker Hub"
@@ -2063,8 +2077,7 @@ sub_recipe_release() {
   done
 
   if [ "$new_version" = "false" ]; then
-
-    # `app` tag hasn't changed, just bump release
+    # $main_service tag hasn't changed, just bump release
     if echo "$latest_version" | grep -q '_'; then
       latest_version_minor="${latest_version##*_}"
     else