Merge pull request #1 from DefiantWanderer/ci/jenkins-pipeline

Add Jenkinsfile for CI build pipeline

Jenkinsfile

@@ -0,0 +1,54 @@
+// CI pipeline for BowlEye (PinPoint). Builds the Debug APK and runs unit
+// tests on every push. Runs on the team19 VM's Jenkins install, using the
+// Android SDK at /opt/android-sdk (see docs/ for the VM setup this depends on).
+pipeline {
+    agent any
+
+    options {
+        timeout(time: 45, unit: 'MINUTES')
+        disableConcurrentBuilds()
+        buildDiscarder(logRotator(numToKeepStr: '20'))
+    }
+
+    environment {
+        ANDROID_HOME     = '/opt/android-sdk'
+        ANDROID_SDK_ROOT = '/opt/android-sdk'
+    }
+
+    stages {
+        stage('Checkout') {
+            steps {
+                checkout scm
+            }
+        }
+
+        stage('Prepare SDK pointer') {
+            steps {
+                // AGP will also pick up ANDROID_HOME from the environment, but
+                // writing local.properties explicitly keeps this working even
+                // if the job ever runs on a different agent/environment setup.
+                sh 'echo "sdk.dir=/opt/android-sdk" > local.properties'
+            }
+        }
+
+        stage('Build Debug APK') {
+            steps {
+                sh 'chmod +x ./gradlew'
+                sh './gradlew assembleDebug --no-daemon --stacktrace'
+            }
+        }
+
+        stage('Unit Tests') {
+            steps {
+                sh './gradlew testDebugUnitTest --no-daemon --stacktrace'
+            }
+        }
+    }
+
+    post {
+        always {
+            junit allowEmptyResults: true, testResults: '**/build/test-results/**/*.xml'
+            archiveArtifacts artifacts: 'app/build/outputs/apk/**/*.apk', allowEmptyArchive: true
+        }
+    }
+}