refactor Jenkins GitHub status postback to work on non-PR commits (op…

…enshift#916)

Jenkinsfile

@@ -24,6 +24,8 @@ limitations under the License.
 // TEST_ZONE: GCP Zone in which to create test GKE cluster
 // TEST_ACCOUNT: GCP service account credentials (JSON file) to use for testing.
 
+def repo_url = params.REPO_URL
+
 def updatePullRequest(flow, success = false) {
  def state, message
  switch (flow) {
@@ -39,10 +41,14 @@ def updatePullRequest(flow, success = false) {
  default:
  error('flow can only be run or verify')
  }
- setGitHubPullRequestStatus(
- context: env.JOB_NAME,
- message: message,
- state: state)
+
+ step([
+ $class: "GitHubCommitStatusSetter",
+ reposSource: [$class: "ManuallyEnteredRepositorySource", url: "${repo_url}"],
+ contextSource: [$class: "ManuallyEnteredCommitContextSource", context: "${JOB_NAME}"],
+ errorHandlers: [[$class: "ChangingBuildStatusErrorHandler", result: "UNSTABLE"]],
+ statusResultSource: [ $class: "ConditionalStatusResultSource", results: [[$class: "AnyBuildResult", message: message, state: state]] ]
+ ]);
 }
 
 // Verify required parameters