def label = "worker-${UUID.randomUUID().toString()}"

podTemplate(
    label: label,
    containers: [
        containerTemplate(
            name: 'gradle', 
            image: 'gradle:7.6.0-jdk11', 
            command: 'sleep', 
            args: '30d'
        )
    ],
    volumes: [
        hostPathVolume(mountPath: '/home/gradle/.gradle', hostPath: '/tmp/jenkins/.gradle')
    ]
)
{
    node(label) {
        def myRepo = checkout scm
        def gitCommit = myRepo.GIT_COMMIT
        def gitBranch = myRepo.GIT_BRANCH
        def shortGitCommit = "${gitCommit[0..10]}"
        def previousGitCommit = sh(script: "git rev-parse ${gitCommit}~", returnStdout: true)

        stage('Test') {
            try {
                container('gradle') {
                sh """
                    pwd
                    echo "GIT_BRANCH=${gitBranch}" >> /etc/environment
                    echo "GIT_COMMIT=${gitCommit}" >> /etc/environment
                    gradle test
                    """
                }
            }
            catch (exc) {
                println "Failed to test - ${currentBuild.fullDisplayName}"
                throw(exc)
            }
        }
        stage('Build') {
            container('gradle') {
                sh "gradle build"
            }
        }
    }
}