NUTCH-2940 Develop Gradle Core Build for Apache Nutch

.gitignore

@@ -27,3 +27,14 @@ naivebayes-model
 csvindexwriter
 lib/spotbugs-*
 ivy/dependency-check-ant/*
+
+# Ignore Gradle project-specific cache directory
+.gradle
+
+# Ignore Gradle build output directory
+build
+
+# Ignore Gradle Wrapper
+gradle/
+gradlew
+gradlew.bat

Jenkinsfile

@@ -0,0 +1,65 @@
+#!groovy
+
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+def AGENT_LABEL = env.AGENT_LABEL ?: 'ubuntu'
+// =================================================================
+// https://cwiki.apache.org/confluence/display/INFRA/Jenkins
+// https://cwiki.apache.org/confluence/display/INFRA/Multibranch+Pipeline+recipes
+// =================================================================
+
+// general pipeline documentation: https://jenkins.io/doc/book/pipeline/syntax/
+pipeline {
+    agent {
+        node {
+            label AGENT_LABEL
+        }
+    }
+
+    environment {
+        LANG = 'C.UTF-8'
+}
+
+    stages {
+        stage('Build') {
+            steps {
+                sh "gradle build"
+              }
+
+            post {
+                success {
+                    archiveArtifacts '**/target/*.jar'
+                }
+            }
+        }
+
+        stage('Test') {
+            steps {
+                sh "gradle test"
+            }
+
+            post {
+                always {
+                    junit testResults: '**/target/surefire-reports/TEST-*.xml', testDataPublishers: [[$class: 'StabilityTestDataPublisher']]
+                }
+            }
+        }
+    }
+}