save jetty-home artifacts in case of label save-home (#10931)

* save jetty-home artifacts in case of label save-home
* save home from local repo as it is installed even with cache

---------

Signed-off-by: Olivier Lamy <olamy@apache.org>

Jenkinsfile

@@ -128,6 +128,9 @@ def mavenBuild(jdk, cmdline, mvnName) {
             }
           }
           sh "mvn $extraArgs -DsettingsPath=$GLOBAL_MVN_SETTINGS -Dmaven.repo.uri=http://nexus-service.nexus.svc.cluster.local:8081/repository/maven-public/ -ntp -s $GLOBAL_MVN_SETTINGS -Dmaven.repo.local=.repository -Pci -V -B -e -U $cmdline"
+          if(saveHome()) {
+            archiveArtifacts artifacts: ".repository/org/eclipse/jetty/jetty-home/**/jetty-home-*", allowEmptyArchive: true, onlyIfSuccessful: false
+          }
         }
       }
     }
@@ -152,4 +155,11 @@ def useBuildCache() {
   // return false
 }
 
+def saveHome() {
+  if (env.BRANCH_NAME ==~ /PR-\d+/) {
+    return pullRequest.labels.contains("save-home")
+  }
+  return false;
+}
+
 // vim: et:ts=2:sw=2:ft=groovy