Jenkinsfile and different strategies for branches

Question

I'm trying to use Jenkins file for all our builds in Jenkins, and I have following problem. We basically have 3 kind of builds:

• pull-request build - it will be merged to master after code review, and if build works
• manual pull-request build - a build that does the same as above, but can be triggered manually by the user (e.g. in case we have some unstable test)
• an initial continuous deliver pipeline - this will build the code, deploy to repository, install artifacts from repository on the target server and start the application there

How should I contain all of the above builds into a single Jenkinsfile. Right now the only idea I have is to make a giant if that will check which branch it is and will do the steps.

So I have two questions:

1. Is that appropriate way to do it in Jenkinsfile?

2. How to get the name of currently executing branch in multi-branch job type?

For reference, here's my current Jenkinsfile:

def servers = ['server1', 'server2']  def version = "1.0.0-${env.BUILD_ID}"  stage 'Build, UT, IT' node {     checkout scm     env.PATH = "${tool 'Maven'}/bin:${env.PATH}"     withEnv(["PATH+MAVEN=${tool 'Maven'}/bin"]) {         sh "mvn -e org.codehaus.mojo:versions-maven-plugin:2.1:set -DnewVersion=$version -DgenerateBackupPoms=false"         sh 'mvn -e clean deploy'         sh 'mvn -e scm:tag'     } }   def nodes = [:] for (int i = 0; i < servers.size(); i++) {     def server = servers.get(i)     nodes["$server"] = {         stage "Deploy to INT ($server)"         node {             sshagent(['SOME-ID']) {                 sh """                 ssh ${server}.example.com <<END                 hostname                 /apps/stop.sh                 yum  -y update-to my-app.noarch                 /apps/start.sh                 END""".stripIndent()             }         }     } }  parallel nodes 

EDIT: removed opinion based question

Answer 1

You can add If statement for multiple stages if you want to skip multiple stages according to the branch as in:

if(env.BRANCH_NAME == 'master'){      stage("Upload"){         // Artifact repository upload steps here         }      stage("Deploy"){         // Deploy steps here        }      } 

or, you can add it to individual stage as in:

stage("Deploy"){   if(env.BRANCH_NAME == 'master'){    // Deploy steps here   } } 

Answer 2

Using this post, this worked for me:

        stage('...') {             when {                 expression { env.BRANCH_NAME == 'master' }             }             steps {                 ...             }         }