def mergeSourceIntoTarget()

in jenkins-pipeline-shared-libraries/vars/githubscm.groovy [58:89]
30 lines of code
2 McCabe index (conditional complexity)

def mergeSourceIntoTarget(String sourceRepository, String sourceAuthor, String sourceBranches, String targetRepository, String targetAuthor, String targetBranches, String credentialId = 'kie-ci') {
    println "[INFO] Merging source [${sourceAuthor}/${sourceRepository}:${sourceBranches}] into target [${targetAuthor}/${targetRepository}:${targetBranches}]..."
    checkout(resolveRepository(targetRepository, targetAuthor, targetBranches, false, credentialId))
    setUserConfigFromCreds(credentialId)
    def targetCommit = getCommit()

    try {
        withCredentials([usernameColonPassword(credentialsId: credentialId, variable: 'kieCiUserPassword')]) {
            sh "git pull https://${kieCiUserPassword}@github.com/${sourceAuthor}/${sourceRepository} ${sourceBranches}"
        }
    } catch (Exception e) {
        println """
        -------------------------------------------------------------
        [ERROR] Can't merge source into Target. Please rebase PR branch.
        -------------------------------------------------------------
        Source: git://github.com/${sourceAuthor}/${sourceRepository} ${sourceBranches}
        Target: ${targetCommit}
        -------------------------------------------------------------
        """
        throw e
    }
    def mergedCommit = getCommit()

    println """
    -------------------------------------------------------------
    [INFO] Source merged into Target
    -------------------------------------------------------------
    Target: ${targetCommit}
    Produced: ${mergedCommit}
    -------------------------------------------------------------
    """
}