jobs/updateSrcRev: added creating a PR, set clean build as default

Implemented creating a pull request using REST API after pushing
the changes (new source revisions) to a nightly branch.
Additionally set the default value of the clean build parameter
to true. This is necessary to have per default a proper operation
of this job

Signed-off-by: Marc Mattmüller <marc.mattmueller@netmodule.com>

jobs/Jenkinsfile_UpdateSrcRevisions

@@ -9,7 +9,7 @@ pipeline {
 
   parameters {
     string(name: 'BUILD_BRANCH', defaultValue: 'main', description: 'Enter the branch of the NWL to build (default = main), will skip deployment if not main')
-    booleanParam(name: 'CLEAN_BUILD', defaultValue: false, description: 'do a clean build, i.e. remove the yocto directory and start from scratch')
+    booleanParam(name: 'CLEAN_BUILD', defaultValue: true, description: 'do a clean build, i.e. remove the yocto directory and start from scratch')
     booleanParam(name: 'DRY_RUN', defaultValue: true, description: 'do a dry run, i.e. without committing and pushing')
   }
 
@@ -91,14 +91,57 @@ def updateTheSourceRevisions(commonHelpers, repoDir, theBranch) {
   }
 }
 //---------------------------------------------------------------------------------------------------------------------
+def setupNewBranchAndGetGitPushPostfix(theNewBranch) {
+  if(sh(returnStatus: true, script: "git checkout ${theNewBranch}") == 0) {
+    println "----------------------------------------------------\n\
+      NOTE: Branch ${theNewBranch} already available \n\
+      and potentially as well a pull/merge request.\n\
+      --> handle this branch and request first\n----------------------------------------------------"
+    error("Available branch ${theNewBranch} detected --> handle this first")
+  }
+
+  sh(script: "git checkout -b ${theNewBranch}")
+}
+//---------------------------------------------------------------------------------------------------------------------
+def createPR(theBranch) {
+  def prReviewer = "bard"
+  def prProject = "NM-NSP"
+  def prRepo = "netmodule-wireless-linux"
+
+  def bitbucketRestApiUrl = "https://bitbucket.gad.local/rest/api/1.0"
+  def prTitle = "Nightly: Src Rev Update"
+  def prDescription = "CI is ppdating the source revisions to HEAD"
+  def prRepository = "\"repository\": {\"slug\": \"${prRepo}\", \"name\": null, \"project\": {\"key\": \"${prProject}\"}}"
+  def prDataJson = "{\"title\": \"${prTitle}\", \"description\": \"${prDescription}\",\
+                     \"state\": \"OPEN\", \"open\": true, \"closed\": false,\
+                     \"fromRef\": {\"id\": \"refs/heads/${theBranch}\", ${prRepository}},\
+                     \"toRef\": {\"id\": \"refs/heads/main\", ${prRepository}},\
+                     \"locked\": false,\
+                     \"reviewers\": [{\"user\": {\"name\": \"${prReviewer}\"}}], \"links\": {\"self\": [null]}}"
+  def prUrl = "${bitbucketRestApiUrl}/projects/${prProject}/repos/${prRepo}/pull-requests"
+  def authHeader = "Authorization: Bearer MDI1NjczNzAyMTI3OrbDBQestfmsi/Iys5qvKP4Tgulp"
+  def acceptHeader = "Accept: application/json"
+  def contentHeader = "Content-Type: application/json"
+
+  def prResponse = sh(returnStdout: true,
+                      script: "curl --request POST --url '${prUrl}' \
+                               --header '${authHeader}' \
+                               --header '${acceptHeader}' \
+                               --header '${contentHeader}' \
+                               --data '${prDataJson}'").toString()
+  if(prResponse.contains("error")) {
+    error("Failed creating PR/MR:\n${prResponse}")
+  }
+}
+//---------------------------------------------------------------------------------------------------------------------
 def commitAndPushTheChanges(commonHelpers, repoDir) {
   def commitMsg = "srcrev: updated source revisions by Jenkins Job"
+  def nightlyBranch = "nightly"
 
   dir(repoDir) {
-    if(sh(returnStdout: true, script: "git status | grep \"modified:\" | grep -v coreos | wc -l").toInteger() != 0) {
-      def itemFindCmd = "git status | grep \"modified:\" | grep -v coreos | cut -d':' -f2 | sed -e 's/^[ ]*//' | cut -d' ' -f1"
-      def changedItems = sh(returnStdout: true, script: "${itemFindCmd}")
-      sh(label: "Stage tracked and changed git files", returnStdout: true, script: "git add ${changedItems}")
+    if(sh(returnStdout: true, script: "git status | grep \"modified:\" | wc -l").toInteger() != 0) {
+      def changedItems = sh(returnStdout: true, script: "git status")
+      sh(label: "Stage tracked and changed git files", returnStdout: true, script: "git add \\*")
 
       if(params.DRY_RUN) {
         println "DRY RUN: commit message = '${commitMsg}'\n         changes = ${changedItems}"
@@ -106,13 +149,19 @@ def commitAndPushTheChanges(commonHelpers, repoDir) {
       }
       else {
         def theCredentials = commonHelpers.getGitCredentialID()
+        setupNewBranchAndGetGitPushPostfix("${nightlyBranch}")
+        println "Commit and Push changes; message = '${commitMsg}'\nchanges = ${changedItems}"
         sshagent (credentials: [theCredentials]) {
-          println "Commit and Push changes; message = '${commitMsg}'\nchanges = ${changedItems}"
+          // ToDo: replace the user.email and user.name once a CI user is setup in the
+          //       active directory.
           sh(label: "Commit and push changes", returnStdout: true, script: """
+            git config --global user.email "marc.mattmueller@netmodule.com"
+            git config --global user.name "Marc Mattmüller"
             git commit -m "${commitMsg}"
-            git push
+            git push -u origin ${theNewBranch}
             """)
         }
+        createPR("${nightlyBranch}")
       }
     }
   }