stages {
    stage('Source Control') {
      when {
        expression { return (currentBuild.result != 'ABORTED') }
        beforeAgent true
      }
      agent { label "${BUILD_ARCH} && ${BUILD_OS}" }
      steps {
        cleanWs deleteDirs: true, disableDeferredWipeout: true
        checkout_scm()
        stash 'source'
        script {
          env.COMMITTER_EMAIL = get_scm_variable('committer_email')
          echo "Committer email: ${COMMITTER_EMAIL}"
          env.MERGED_BRANCH = get_merged_branch()
          set_branch_and_trigger_variables()
        }
      }
    }