Added Jenkinsfile (#6)

* Added Jenkinsfile

Added VERSION file.
Added Jenkinsfile for build/test/publish.

Author: ricellis

Jenkinsfile

@@ -0,0 +1,89 @@
+#!groovy
+
+/*
+ * Copyright © 2017 IBM Corp. All rights reserved.
+ *
+ * Licensed 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.
+ */
+
+stage('Build') {
+    // Checkout, build and assemble the source and doc
+    node {
+        checkout scm
+        sh './gradlew clean assemble'
+        stash name: 'built'
+    }
+}
+
+stage('Test') {
+    node {
+        // Unstash the built code
+        unstash name: 'built'
+        withCredentials([[$class: 'UsernamePasswordMultiBinding', credentialsId: 'clientlibs-test', usernameVariable: 'DB_USER', passwordVariable: 'DB_PASSWORD']]) {
+            // Run the core and in-process tests
+            // Note Redis server not available in this env, so those tests excluded (but tested by Travis CI)
+            try {
+                sh "./gradlew -Dtest.couch.url=https://${env.DB_USER}:${env.DB_PASSWORD}@clientlibs-test.cloudant.com :cloudant-client-cache:test :cloudant-client-cache-in-process:test"
+            } finally {
+                junit '**/build/test-results/*.xml'
+            }
+        }
+    }
+}
+
+// Publish the master branch
+stage('Publish') {
+    if (env.BRANCH_NAME == "master") {
+        node {
+            checkout scm // re-checkout to be able to git tag
+            unstash name: 'built'
+            // read the version name and determine if it is a release build
+            version = readFile('VERSION').trim()
+            isReleaseVersion = !version.toUpperCase(Locale.ENGLISH).contains("SNAPSHOT")
+
+            // Upload using the ossrh creds (upload destination logic is in build.gradle)
+            withCredentials([usernamePassword(credentialsId: 'ossrh-creds', passwordVariable: 'OSSRH_PASSWORD', usernameVariable: 'OSSRH_USER'), usernamePassword(credentialsId: 'signing-creds', passwordVariable: 'KEY_PASSWORD', usernameVariable: 'KEY_ID'), file(credentialsId: 'signing-key', variable: 'SIGNING_FILE')]) {
+                sh './gradlew -Dsigning.keyId=$KEY_ID -Dsigning.password=$KEY_PASSWORD -Dsigning.secretKeyRingFile=$SIGNING_FILE -DossrhUsername=$OSSRH_USER -DossrhPassword=$OSSRH_PASSWORD upload'
+            }
+
+            // if it is a release build then do the git tagging
+            if (isReleaseVersion) {
+
+                // Read the CHANGES.md to get the tag message
+                tagMessage = ''
+                for (line in readFile('CHANGES.md').readLines()) {
+                    if (!''.equals(line)) {
+                        // append the line to the tagMessage
+                        tagMessage = "${tagMessage}${line}\n"
+                    } else {
+                        break
+                    }
+                }
+
+                // Use git to tag the release at the version
+                try {
+                    // Awkward workaround until resolution of https://issues.jenkins-ci.org/browse/JENKINS-28335
+                    withCredentials([[$class: 'UsernamePasswordMultiBinding', credentialsId: 'github-token', usernameVariable: 'GIT_USERNAME', passwordVariable: 'GIT_PASSWORD']]) {
+                        sh "git config user.email \"[email protected]\""
+                        sh "git config user.name \"Jenkins CI\""
+                        sh "git config credential.username ${env.GIT_USERNAME}"
+                        sh "git config credential.helper '!echo password=\$GIT_PASSWORD; echo'"
+                        sh "git tag -a ${version} -m '${tagMessage}'"
+                        sh "git push origin ${version}"
+                    }
+                } finally {
+                    sh "git config --unset credential.username"
+                    sh "git config --unset credential.helper"
+                }
+            }
+        }
+    }
+}

VERSION

@@ -0,0 +1 @@
+0.3.1-SNAPSHOT

build.gradle

@@ -18,7 +18,7 @@ subprojects {
     apply plugin: 'signing'
 
     group = 'com.cloudant'
-    version = '0.3.1-SNAPSHOT'
+    version = new File(rootDir, 'VERSION').text.trim()
     description = """A Java object cache for use with the java-cloudant client"""
 
     // If the version says "snapshot" anywhere assume it is not a release