Create a Jenkins Pipeline job for merge requests

[Supertwister]

Hello,

I've started lately to use Jenkins and i need some help with creating a pipeline.

I want to create the following pipeline:

For each merge request from develop to master in Gitlab, Trigger a Jenkins job that run an end-to-end test, And merge the branches in Gitlab only if the test succeeded.

I have found the following article that gives me an explanation for most of the things that i need:

https://vetlugin.wordpress.com/2017/01/31/guide-jenkins-pipeline-merge-requests/

I'm still looking for an answer for one question:

How can Jenkins response to Gitlab with the result of the end-to-end test (Success/Fail), So Gitlab will know whether to merge to branches or not?

Please advise,

Thanks!

[Brian Benson]

What have you tried?

[Supertwister]

Currently i have a freestyle job in Jenkins that triggering on Gitlab merge request event. This job runs my end-to-end test.

Now need to know how to send Gitlab the result of the test, In order to know whether to merge the branches or not. 

I also planning to convert the freestyle job to a Jenkins file.

[Neel Desai]

Let me know if you get any work around solution. I am also looking for similar kind of functionality but for gerrit.