Add .gitlab-ci.yml

.gitlab-ci.yml

+# This file is a template, and might need editing before it works on your project.
+---
+# Build JAVA applications using Apache Maven (http://maven.apache.org)
+# For docker image tags see https://hub.docker.com/_/maven/
+#
+# For general lifecycle information see https://maven.apache.org/guides/introduction/introduction-to-the-lifecycle.html
+# 
+# This template will build and test your projects as well as create the documentation.
+# 
+# * Caches downloaded dependencies and plugins between invocation.
+# * Does only verify merge requests but deploy built artifacts of the
+#   master branch.
+# * Shows how to use multiple jobs in test stage for verifying functionality
+#   with multiple JDKs.
+# * Uses site:stage to collect the documentation for multi-module projects.
+# * Publishes the documentation for `master` branch.
+
+variables:
+  # This will supress any download for dependencies and plugins or upload messages which would clutter the console log.
+  # `showDateTime` will show the passed time in milliseconds. You need to specify `--batch-mode` to make this work.
+  MAVEN_OPTS: "-Dorg.slf4j.simpleLogger.log.org.apache.maven.cli.transfer.Slf4jMavenTransferListener=WARN -Dorg.slf4j.simpleLogger.showDateTime=true -Djava.awt.headless=true"
+  # As of Maven 3.3.0 instead of this you may define these options in `.mvn/maven.config` so the same config is used
+  # when running from the command line.
+  # `installAtEnd` and `deployAtEnd`are only effective with recent version of the corresponding plugins.
+  MAVEN_CLI_OPTS: "--batch-mode --errors --fail-at-end --show-version -DinstallAtEnd=true -DdeployAtEnd=true"
+
+# Cache downloaded dependencies and plugins between builds.
+cache:
+  paths:
+    - /usr/home/git/.m2/repository/
+
+# This will only validate and compile stuff and run e.g. maven-enforcer-plugin. 
+# Because some enforcer rules might check dependency convergence and class duplications
+# we use `test-compile` here instead of `validate`, so the correct classpath is picked up.
+.validate: &validate
+  stage: build
+  script:
+    - 'mvn $MAVEN_CLI_OPTS test-compile'
+
+# For merge requests do not `deploy` but only run `verify`.
+# See https://maven.apache.org/guides/introduction/introduction-to-the-lifecycle.html
+.verify: &verify
+  stage: test
+  script:
+    - 'mvn $MAVEN_CLI_OPTS verify site site:stage'
+  except:
+    - master
+
+# Validate merge requests using JDK8
+validate:jdk8:
+  <<: *validate
+  image: maven:3.3.9-jdk-8
+
+# Verify merge requests using JDK8
+verify:jdk8:
+  <<: *verify
+  image: maven:3.3.9-jdk-8
+
+
+# For `master` branch run `mvn deploy` automatically.
+# Here you need to decide whether you want to use JDK7 or 8.
+# To get this working you need to define a volume while configuring your gitlab-ci-multi-runner.
+# Mount your `settings.xml` as `/root/.m2/settings.xml` which holds your secrets.
+# See https://maven.apache.org/settings.html
+deploy:jdk8:
+  # Use stage test here, so the pages job may later pickup the created site.
+  stage: test
+  script:
+    - 'mvn $MAVEN_CLI_OPTS deploy site site:stage'
+  only:
+    - master
+  # Archive up the built documentation site.
+  artifacts:
+    paths:
+    - target/staging
+  image: maven:3.3.9-jdk-8
+
+
+pages:
+  image: busybox:latest
+  stage: deploy
+  script:
+    # Because Maven appends the artifactId automatically to the staging path if you did define a parent pom,
+    # you might need to use `mv target/staging/YOUR_ARTIFACT_ID public` instead.
+    - mv target/staging public
+  dependencies:
+    - deploy:jdk8
+  artifacts:
+    paths:
+    - public
+  only:
+    - master
+