jenkinsfile_update2head: added pipeline for automatic submodule updating

BugzID: 73574
Signed-off-by: Marc Mattmueller <marc.mattmueller@netmodule.com>

Jenkinsfile_update2head

@@ -0,0 +1,113 @@
+// declarative pipeline
+pipeline {
+  agent {
+    node {
+      label 'lxbuild4'
+    }
+  }
+
+  parameters {
+    booleanParam(name: 'UPDATE_NM_PARTS', defaultValue: true, description: 'update the netmodule submodules')
+    booleanParam(name: 'UPDATE_COMMUNITY_PARTS', defaultValue: false, description: 'update the the community submodules')
+  }
+
+  environment {
+    SUBMODULE_VERION_FILE = "submodule_revisions"
+  }
+
+  options {
+    timeout(time: 8, unit: 'HOURS')
+    buildDiscarder(
+      logRotator(numToKeepStr: '5',
+                 daysToKeepStr: '5',
+                 artifactNumToKeepStr: '5',
+                 artifactDaysToKeepStr: '5'
+      )
+    )
+    disableConcurrentBuilds()
+  }
+
+  stages {
+    stage('prepare') {
+      steps {
+        script {
+          printJobParameters()
+          prepareUpdate()
+        }
+      }
+    }
+
+    stage('update to head') {
+      steps {
+        script {
+          updateSubmodules(params.UPDATE_NM_PARTS, params.UPDATE_COMMUNITY_PARTS)
+        }
+      }
+    }
+
+    stage('commit') {
+      steps {
+        commitChanges()
+      }
+      post {
+        success {
+          archiveArtifacts(artifacts: "${env.SUBMODULE_VERION_FILE}", onlyIfSuccessful: false)
+        }
+      }
+    }
+
+  } // stages
+}
+
+
+def printJobParameters() {
+  println "----------------------------------\n\
+    Job Parameters:\n\
+  ----------------------------------\n\
+      UPDATE_NM_PARTS        = ${params.UPDATE_NM_PARTS}\n\
+      UPDATE_COMMUNITY_PARTS = ${params.UPDATE_COMMUNITY_PARTS}\n\
+  ----------------------------------\n"
+}
+
+def prepareUpdate() {
+  sh 'git submodule init'  // init submodules used if first checkout
+
+  def userId = currentBuild.rawBuild.getCause(Cause.UserIdCause).getUserId()
+  println "userId = ${userId}"
+
+  def userIdCause = currentBuild.getBuildCauses('hudson.model.Cause$UserIdCause')[0]
+  println userIdCause
+
+  def buildCause = currentBuild.getBuildCauses('hudson.model.Cause$UserIdCause')
+  println "userName: ${buildCause.userName}"
+
+  def triggerDescription = "${currentBuild.getBuildCauses()[0].shortDescription}"
+  def triggerUserId = "${currentBuild.getBuildCauses()[0].userId}"
+  println "description: ${triggerDescription} ; userId: ${triggerUserId}"
+
+  def notNmUpdate = "${!params.BUILD_FROM_DEV_IMAGE}"
+  def notCommunityUpdate = "${!params.BUILD_FROM_DEV_IMAGE}"
+  if(notNmUpdate.toBoolean() && notCommunityUpdate.toBoolean()) {
+    error("Nothing to update selected - both parameters are false")
+  }
+}
+
+def updateSubmodules(isNmUpdate, isCommunityUpdate) {
+  def updatedPart = ""
+  if(isNmUpdate) {
+    sh(script: "git submodule update --remote --rebase meta-netmodule-*"
+    updatedPart = "netmodule"
+  }
+  if(isCommunityUpdate) {
+    sh(script: "git submodule update --remote --rebase \$(git submodule status | grep -v \"meta-netmodule-*\" | sed 's/^ *//g' | cut -d' ' -f2)")
+    updatedPart = "community"
+  }
+  submoduleStatus = sh(returnStdout: true, script: "git submodule status").trim()  // print submodule hashes to jenkins log
+  println "${submoduleStatus}"
+  writeFile(file: "${env.SUBMODULE_VERION_FILE}", text: "${submoduleStatus}")
+}
+
+def commitChanges() {
+  sh(script: "git add -u")
+  sh(script: "git commit -m \"submodules: updated ${updatedPart} hashes\" && git push")
+}