- setup build triggers automatically

- improved some comments

vars/buildTestDeploy.groovy

@@ -14,9 +14,17 @@ def call(ArrayList<String> dependencyList, String gitUrl='') {
                  'bionic-Release',
                  'tumbleweed-Debug',
                  'tumbleweed-Release' ]
+  def dependencies = dependencyList.join(',')
 
   pipeline {
     agent none
+
+    // setup build trigger
+    triggers {
+      pollSCM 'H/5 * * * *'
+      upstream dependencies
+    }
+
     stages {
       stage('build') {
         // Run the build stages for all labels + build types in parallel, each in a separate docker container

vars/helper.groovy

@@ -8,12 +8,14 @@
 
 def doBuildTestDeploy(ArrayList<String> dependencyList, String label, String buildType, String gitUrl) {
 
+  // prepare source directory and dependencies
   doPrepare(true, gitUrl)
   doDependencyArtefacts(dependencyList, label, buildType)
 
-  // Add inactivity timeout of 10 minutes (build will be interrupted if 10 minutes no log output has been produced)
+  // add inactivity timeout of 10 minutes (build will be interrupted if 10 minutes no log output has been produced)
   timeout(activity: true, time: 10) {
   
+    // start build and tests, then generate artefact
     doBuild(label, buildType)
     doTest(label, buildType)
     doInstall(label, buildType)