pipeline {

stages {

stage('Check for CHANGELOG update') {

when { expression { env.BRANCH_NAME != 'master' } }

steps {

script {

sshagent(['CREDENTIAL_NAME']) {

sh "git config --add remote.origin.fetch +refs/heads/master:refs/remotes/origin/master"

sh "git fetch --no-tags"

List<String> sourceChanged = sh(returnStdout: true, script: "git diff --name-only origin/master..origin/${env.BRANCH_NAME}").split()

def isSourceChanged = false

def isChangelogUpdated = false

for (int i = 0; i < sourceChanged.size(); i++) {

if (sourceChanged[i].contains("src")) {

isSourceChanged = true

}

if (sourceChanged[i].contains("CHANGELOG")) {

isChangelogUpdated = true

}

}

// Changelog not updated after changing source, fail build and notify

if (isSourceChanged && !isChangelogUpdated) {

error("Source files changed but CHANGELOG was not updated!")

}

}

}

}

post {

failure {

// post to Slack

}

}

}

}

}