Move triggering build logic to separate script

.gitlab-ci.yml

@@ -149,18 +149,7 @@ build-package:
   stage: build
   when: manual
   script:
-    # If no branch in omnibus is specified, trigger pipeline against master
-    - if [ -z "$OMNIBUS_BRANCH" ] ; then export OMNIBUS_BRANCH=master ;fi
-    - echo "token=${BUILD_TRIGGER_TOKEN}" > version_details
-    - echo "ref=${OMNIBUS_BRANCH}" >> version_details
-    - echo "variables[ALTERNATIVE_SOURCES]=true" >> version_details
-    - echo "variables[GITLAB_VERSION]=${CI_COMMIT_SHA}" >> version_details
-    # Collect version details of all components
-    - for f in *_VERSION; do echo "variables[$f]=$(cat $f)" >> version_details; done
-    # Trigger the API and pass values collected above as parameters to it
-    - pipeline_id=$(cat version_details | tr '\n' '&' | curl -s -X POST https://gitlab.com/api/v4/projects/20699/trigger/pipeline --data-binary @- | ruby -e "require 'json'; puts JSON.parse(STDIN.read)['id']") > /dev/null
-    - echo "Triggered pipeline can be found at https://gitlab.com/gitlab-org/omnibus-gitlab/pipelines/${pipeline_id}"
-    - rm version_details
+    - scripts/trigger-build
 
 # Prepare and merge knapsack tests
 knapsack:

scripts/trigger-build

+#!/usr/bin/env ruby
+
+require 'net/http'
+require 'json'
+
+uri = URI('https://gitlab.com/api/v4/projects/20699/trigger/pipeline')
+params = {
+  "token" => ENV['BUILD_TRIGGER_TOKEN'],
+  "variables[GITLAB_VERSION]" => ENV['CI_COMMIT_SHA'],
+  "variables[ALTERNATIVE_SOURCES]" => true,
+}
+params['ref'] = ENV['OMNIBUS_BRANCH'] || "master"
+Dir.glob("*_VERSION").each do |version_file|
+  params["variables[#{version_file}]"] = File.read(version_file).strip
+end
+res = Net::HTTP.post_form(uri, params)
+pipeline_id = JSON.parse(res.body)['id']
+puts "Triggered pipeline can be found at https://gitlab.com/gitlab-org/omnibus-gitlab/pipelines/#{pipeline_id}"