CI: Update .Jenkinsfile

.Jenkinsfile

@@ -1,21 +1,45 @@
 pipeline {
-    agent { label 'docker' }
+    agent { label 'gbp' }
+    options {
+        // This is required to clean up before build
+        skipDefaultCheckout(true)
+    }
     stages {
-        stage('Build Debian package') {
-            agent {
-                docker {
-                    image 'evolix/gbp:latest'
-                    args '-v /tmp:/tmp'
-                }
+        stage("Env Variables") {
+            steps {
+                sh "printenv | sort"
             }
+        }
+
+        stage('Build Debian package') {
             when {
-                branch 'debian'
+                branch 'wip-debian'
             }
             steps {
+                // Clean before build
+                cleanWs()
                 script {
-                    sh 'mk-build-deps --install --remove debian/control'
-                    sh 'git clean --force'
-                    sh 'gbp buildpackage'
+                    // Explicitly checkout from SCM after clean up
+                    def scmVars = checkout([
+                        $class: 'GitSCM',
+                        branches: [[name: '*/wip-debian']],
+                        doGenerateSubmoduleConfigurations: false,
+                        extensions: [[$class: 'RelativeTargetDirectory', relativeTargetDir: 'source']],
+                        submoduleCfg: [],
+                        userRemoteConfigs: [[url: 'https://gitea.evolix.org/evolix/evobackup.git']]
+                    ])
+                    echo "scmVars.GIT_COMMIT"
+                    env.GIT_COMMIT = scmVars.GIT_COMMIT
+                    sh "echo Building ${env.JOB_NAME}..."
+                    sh 'printenv | sort'
+                    sh '/usr/bin/generate-git-snapshot'
+                    sh '/usr/bin/build-and-provide-package'
+                    /* Lintian */
+                    sh 'mkdir -p report'
+                    /* For the source package */
+                    sh '/usr/bin/lintian-junit-report *.dsc > report/lintian.xml'
+                    /* For the binary package */
+                    sh '/usr/bin/lintian-junit-report *.changes >> report/lintian.xml'
                 }
             }
         }
@@ -34,4 +58,16 @@ pipeline {
             }
         }
     }
+    post {
+        // Clean after build
+        always {
+            archiveArtifacts artifacts: '*.gz,*.bz2,*.xz,*.deb,*.dsc,*.changes,*.buildinfo,lintian.txt'
+            cleanWs(cleanWhenNotBuilt: false,
+                    deleteDirs: true,
+                    disableDeferredWipeout: true,
+                    notFailBuild: true,
+                    patterns: [[pattern: '.gitignore', type: 'INCLUDE'],
+                               [pattern: '.propsfile', type: 'EXCLUDE']])
+        }
+    }
 }