Merge remote-tracking branch 'origin/ci-handle-no-artifact' into integration_2025_w30 (!3535)

RAN-Container-Parent: Auto-generate artifact in failure case

RAN-Container-Parent uses Jenkinsfile-GitLab-Container, which only
triggers sub pipelines, then collects their results. However, if a sub
pipeline did not generate an artifact, the result was skipped. It would
also not show it in the automatically generated result page, when it
should.

Remedy this by automatically generating a file with a link to the
pipeline if the artifact could not be retrieved, which
1. Will give a link, which is easier for developers to follow to the
   pipeline than manually clicking through Jenkins,
2. Makes the failed pipeline appear in the list of failed pipelines.

ci-scripts/Jenkinsfile-GitLab-Container

@@ -835,11 +835,13 @@ def finalizeSlaveJob(jobName) {
         selector: lastCompleted())
       if (fileExists(fileName)) {
         sh "sed -i -e 's#TEMPLATE_BUILD_TIME#${JOB_TIMESTAMP}#' ${fileName}"
-        archiveArtifacts artifacts: fileName
-        // BUILD_URL is like  http://server:port/jenkins/job/foo/15/
-        // no need to add a prefixed '/'
-        artifactUrl += 'artifact/' + fileName
+      } else {
+        sh "echo \"could not copy results from ${jobName}, please check pipeline ${BUILD_URL}\" > ${fileName}"
       }
+      archiveArtifacts artifacts: fileName
+      // BUILD_URL is like  http://server:port/jenkins/job/foo/15/
+      // no need to add a prefixed '/'
+      artifactUrl += 'artifact/' + fileName
     }
     artifactUrl = "\n * [${jobName}](${artifactUrl})"
     return artifactUrl