Jenkins differentiate between PR and merge webhooks

Question

So we can have only one Jenkinsfile per job. And we share the same job for both merge and PR webhooks from github. How can we easily detect if the webhook for a commit pushed in a PR or for PR merge?

Assuming different branches for PR and merge PR, e.g. 'feature' and 'develop', you could solve this using `when { branch '...' }`. Reference: [Pipeline Syntax](https://jenkins.io/doc/book/pipeline/syntax/#when) — groverboy, Apr 18 '18 at 00:39
Actually, there is a `when { changeRequest() }` condition mentioned on the site referenced by @groverboy — StephenKing, Apr 18 '18 at 05:58
@StephenKing +1 thanks - I see that `changeRequest` was added a couple of weeks ago. — groverboy, Apr 20 '18 at 03:33
I can accept as answer if you guys post a code snippet as answer :) — Behlül, Apr 20 '18 at 17:15

score 2 · Accepted Answer · edited Sep 15 '21 at 15:17

This (declarative pipeline) snippet might help:

stage('do something for PRs opened against develop branch') {
    when {
        changeRequest target: 'develop'
    }
    steps {
        sh 'pr-worker.sh'
    }
}

stage('do something on merge or direct commits to the develop branch') {
    when {
        branch 'develop'
    }
    steps {
        sh 'develop-worker.sh'
    }
}

See when in the documentation.

Jenkins differentiate between PR and merge webhooks

1 Answers1