fix: ensure we can deploy code when there is no pre or post-deploy script defined

Closes #3385

plugins/app-json/internal-functions

@@ -28,7 +28,7 @@ get_release_cmd() {
   extract_procfile "$APP" "$IMAGE_TAG" >/dev/null
   trap 'remove_procfile $APP' RETURN INT TERM EXIT
 
-  get_cmd_from_procfile "$APP" "release" "5000" || true
+  get_cmd_from_procfile "$APP" "release" "5000"
 }
 
 execute_script() {
@@ -38,9 +38,9 @@ execute_script() {
 
   IMAGE=$(get_deploying_app_image_name "$APP" "$IMAGE_TAG")
   if [[ "$PHASE_SCRIPT_KEY" == "release" ]]; then
-    SCRIPT_CMD=$(get_release_cmd "$APP" "$IMAGE" 2>/dev/null)
+    SCRIPT_CMD=$(get_release_cmd "$APP" "$IMAGE" 2>/dev/null || true)
   else
-    SCRIPT_CMD=$(get_phase_script "$IMAGE" "$PHASE_SCRIPT_KEY" 2>/dev/null)
+    SCRIPT_CMD=$(get_phase_script "$IMAGE" "$PHASE_SCRIPT_KEY" 2>/dev/null || true)
   fi
 
   if [[ -z "$SCRIPT_CMD" ]]; then

tests/apps/nodejs-express-noappjson/CHECKS

@@ -0,0 +1,5 @@
+WAIT=2 # wait 2 seconds
+TIMEOUT=5 # set timeout to 5 seconds
+ATTEMPTS=2 # try 2 times
+
+/ nodejs/express

tests/apps/nodejs-express-noappjson/Procfile

@@ -0,0 +1,54 @@
+###############################
+#         DEVELOPMENT         #
+###############################
+
+# Procfile for development using the new threaded worker (scheduler, twitter stream and delayed job)
+cron: node worker.js
+web: node web.js # testing inline comment
+worker: node worker.js
+custom: echo -n
+release: touch /app/release.test
+
+
+# Old version with separate processes (use this if you have issues with the threaded version)
+# web: bundle exec rails server
+# schedule: bundle exec rails runner bin/schedule.rb
+# twitter: bundle exec rails runner bin/twitter_stream.rb
+# dj: bundle exec script/delayed_job run
+
+###############################
+#         PRODUCTION          #
+###############################
+
+# You need to copy or link config/unicorn.rb.example to config/unicorn.rb for both production versions.
+# Have a look at the deployment guides, if you want to set up huginn on your server:
+# https://github.com/cantino/huginn/doc
+
+# Using the threaded worker (consumes less RAM but can run slower)
+# web: bundle exec unicorn -c config/unicorn.rb
+# jobs: bundle exec rails runner bin/threaded.rb
+
+# Old version with separate processes (use this if you have issues with the threaded version)
+# web: bundle exec unicorn -c config/unicorn.rb
+# schedule: bundle exec rails runner bin/schedule.rb
+# twitter: bundle exec rails runner bin/twitter_stream.rb
+# dj: bundle exec script/delayed_job run
+
+###############################
+# Multiple DelayedJob workers #
+###############################
+# Per default Huginn can just run one agent at a time. Using a lot of agents or calling slow
+# external services frequently might require more DelayedJob workers (an indicator for this is
+# a backlog in your 'Job Management' page).
+# Every uncommented line starts an additional DelayedJob worker. This works for development, production
+# and for the threaded and separate worker processes. Keep in mind one worker needs about 300MB of RAM.
+#
+#dj2: bundle exec script/delayed_job -i 2 run
+#dj3: bundle exec script/delayed_job -i 3 run
+#dj4: bundle exec script/delayed_job -i 4 run
+#dj5: bundle exec script/delayed_job -i 5 run
+#dj6: bundle exec script/delayed_job -i 6 run
+#dj7: bundle exec script/delayed_job -i 7 run
+#dj8: bundle exec script/delayed_job -i 8 run
+#dj9: bundle exec script/delayed_job -i 9 run
+#dj10: bundle exec script/delayed_job -i 10 run

tests/apps/nodejs-express-noappjson/check_deploy

@@ -0,0 +1,5 @@
+#!/usr/bin/env bash
+set -e
+output="$(curl -s -S "$1")"
+echo "$output"
+test "$output" == "nodejs/express"

tests/apps/nodejs-express-noappjson/package.json

@@ -0,0 +1,10 @@
+{
+  "name": "node-example",
+  "version": "0.0.1",
+  "dependencies": {
+    "express": "2.5.x"
+  },
+  "engines": {
+    "node": "4.2.x"
+  }
+}

tests/apps/nodejs-express-noappjson/web.js

@@ -0,0 +1,12 @@
+var express = require('express');
+
+var app = express.createServer(express.logger());
+
+app.get('/', function(request, response) {
+  response.send('nodejs/express');
+});
+
+var port = process.env.PORT || 5000;
+app.listen(port, function() {
+  console.log("Listening on " + port);
+});

tests/apps/nodejs-express-noappjson/worker.js

@@ -0,0 +1,6 @@
+function worker() {
+  console.log('sleeping for 60 seconds');
+  setTimeout(worker, 60 * 1000);
+}
+
+worker();

tests/unit/40_app-json.bats

@@ -17,7 +17,7 @@ teardown() {
 }
 
 @test "(app-json) app.json scripts" {
-  deploy_app
+  deploy_app nodejs-express
 
   run /bin/bash -c "dokku run $TEST_APP ls /app/prebuild.test"
   echo "output: $output"
@@ -36,3 +36,11 @@ teardown() {
   echo "status: $status"
   assert_success
 }
+
+
+@test "(app-json) app.json scripts missing" {
+  deploy_app nodejs-express-noappjson
+  echo "output: $output"
+  echo "status: $status"
+  assert_success
+}