Jenkinsfile

def FAILED_STAGE

pipeline {
    agent {
       node {
           label 'ozgcloud-jenkins-build-agent-jdk21'
        }
    }

    environment {
        JENKINS_URL = "https://jenkins.ozg-sh.de/job/codeSH_api-lib/job/${env.BRANCH_NAME}/${env.BUILD_NUMBER}/"
        RELEASE_REGEX = /\d+.\d+.\d+/
        SNAPSHOT_REGEX = /\d+.\d+.\d+-SNAPSHOT/
    }

    options {
        timeout(time: 1, unit: 'HOURS')
        disableConcurrentBuilds()
        buildDiscarder(logRotator(numToKeepStr: '5'))
    }

    stages {
    	stage('Check Version') {
    	    steps {
    	        script {
    	            FAILED_STAGE = env.STAGE_NAME
    	            def rootPom = readMavenPom file: 'pom.xml'
                    def rootVersion = rootPom.version

                    if(env.BRANCH_NAME == 'release'){
                        if ( !(rootVersion ==~ RELEASE_REGEX)) {
                            error("Keine Release Version für Branch ${env.BRANCH_NAME}.")
                        }
                    } else {
                        if ( !(rootVersion ==~ SNAPSHOT_REGEX)) {
                               error("Keine Snapshot Version für Branch ${env.BRANCH_NAME}.")
                        }
    	            }
    	        }
 	       }
 	   } //stage check version
        stage('Set Version') {
          when {
            not {
                anyOf {
                    branch 'main'
                    branch 'release'
                }
            }
          }
          steps {
                script {
                    FAILED_STAGE=env.STAGE_NAME
                    JAR_TAG = getPomVersion('pom.xml').replace("SNAPSHOT", "${env.BRANCH_NAME}-SNAPSHOT")
                }
                configFileProvider([configFile(fileId: 'maven-settings', variable: 'MAVEN_SETTINGS')]) {
                    sh "mvn -s $MAVEN_SETTINGS versions:set -DnewVersion=${JAR_TAG} -DprocessAllModules=true"
                    
                }
          }
        } 
 	   stage('Build') {
 	       steps {
 	           script {
                    FAILED_STAGE=env.STAGE_NAME
                }
                configFileProvider([configFile(fileId: 'maven-settings', variable: 'MAVEN_SETTINGS')]) {
                     sh 'mvn -s $MAVEN_SETTINGS clean install'
                }
 	       }
 	   } //stage build
 	   stage('Deploy to nexus') {
 	       steps {
 	           script {
 	               FAILED_STAGE = env.STAGE_NAME
 	           }
				configFileProvider([configFile(fileId: 'maven-settings', variable: 'MAVEN_SETTINGS')]) {
                    sh 'mvn -s $MAVEN_SETTINGS -Pdeploy -DskipTests deploy'
                    sh 'mvn -s $MAVEN_SETTINGS versions:revert'

                }
 	       }
 	   } //stage deploy
   } //stages
   post {
      failure {
          script {
              if (isMainBranch() || env.BRANCH_NAME == 'release') {
                  sendFailureMessage()
              }
          }
      }
   }
} //pipeline

Void sendFailureMessage() {
    def room = ''
    def data = """{"msgtype":"m.text", \
                    "body":"api-lib: Build Failed. Stage: ${FAILED_STAGE} Build-ID: ${env.BUILD_NUMBER} Link: ${JENKINS_URL}", \
                    "format": "org.matrix.custom.html", \
                    "formatted_body":"api-lib: Build Failed. Stage: ${FAILED_STAGE} Build-ID: <a href='${JENKINS_URL}'>${env.BUILD_NUMBER}</a>"}"""

    if (isMainBranch()) {
        room = "!GjqhmouBtnDbwUkAjx:matrix.ozg-sh.de"
    }
    else if (env.BRANCH_NAME == 'release') {
        room = "!oWZpUGTFsxkJIYNfYg:matrix.ozg-sh.de"
    }

    sh "curl -XPOST -H 'authorization: Bearer ${getElementAccessToken()}' -d '${data}' https://matrix.ozg-sh.de/_matrix/client/v3/rooms/$room/send/m.room.message"
}

String getElementAccessToken() {
    withCredentials([string(credentialsId: 'element-login-json', variable: 'LOGIN_JSON')]) {
        return readJSON ( text: sh (script: '''curl -XPOST -d \"$LOGIN_JSON\" https://matrix.ozg-sh.de/_matrix/client/v3/login''', returnStdout: true)).access_token
    }
}

String getPomVersion(String pomFile){
    def pom = readMavenPom file: pomFile

    return pom.version
}

Boolean isMainBranch() {
    return env.BRANCH_NAME == 'main'
}