jenkins: switch to Jenkins and trunk based development

.travis.yml

@@ -1,5 +1,8 @@
 language: java
 jdk:
 - oraclejdk8
-after_success:
-  - mvn clean test jacoco:report coveralls:report
+cache:
+  directories:
+  - "$HOME/.m2"
+install: true
+script: "mvn -B -U clean install"

Jenkinsfile.groovy

@@ -0,0 +1,104 @@
+final String publicRepo = 'https://github.com/kemitix/'
+final String mvn = "mvn --batch-mode --update-snapshots --errors"
+final dependenciesSupportJDK = 10
+
+pipeline {
+    agent any
+    stages {
+        stage('Build & Test') {
+            steps {
+                withMaven(maven: 'maven', jdk: 'JDK 1.8') {
+                    sh "${mvn} clean compile checkstyle:checkstyle pmd:pmd test"
+                    // PMD to Jenkins
+                    pmd canComputeNew: false, defaultEncoding: '', healthy: '', pattern: '', unHealthy: ''
+                }
+            }
+        }
+        stage('Report Coverage') {
+            steps {
+                withMaven(maven: 'maven', jdk: 'JDK 1.8') {
+                    // Code Coverage to Jenkins
+                    jacoco exclusionPattern: '**/*{Test|IT|Main|Application|Immutable}.class'
+                }
+            }
+        }
+        stage('Report Checkstyle') {
+            steps {
+                withMaven(maven: 'maven', jdk: 'JDK 1.8') {
+                    // Checkstyle to Jenkins
+                    step([$class: 'hudson.plugins.checkstyle.CheckStylePublisher',
+                          pattern: '**/target/checkstyle-result.xml',
+                          healthy:'20',
+                          unHealthy:'100'])
+                }
+            }
+        }
+        stage('Verify & Install') {
+            steps {
+                withMaven(maven: 'maven', jdk: 'JDK 1.8') {
+                    sh "${mvn} -DskipTests install"
+                }
+            }
+        }
+        stage('SonarQube (published)') {
+            when { expression { isPublished(publicRepo) } }
+            steps {
+                withSonarQubeEnv('sonarqube') {
+                    withMaven(maven: 'maven', jdk: 'JDK 1.8') {
+                        sh "${mvn} org.sonarsource.scanner.maven:sonar-maven-plugin:3.4.0.905:sonar"
+                    }
+                }
+            }
+        }
+        stage('Deploy (published release branch)') {
+            when {
+                expression {
+                    (isReleaseBranch() &&
+                            isPublished(publicRepo) &&
+                            notSnapshot())
+                }
+            }
+            steps {
+                withMaven(maven: 'maven', jdk: 'JDK 1.8') {
+                    sh "${mvn} --activate-profiles release deploy"
+                }
+            }
+        }
+        stage('Build Java 9') {
+            when { expression { dependenciesSupportJDK >= 9 } }
+            steps {
+                withMaven(maven: 'maven', jdk: 'JDK 9') {
+                    sh "${mvn} clean verify -Djava.version=9"
+                }
+            }
+        }
+        stage('Build Java 10') {
+            when { expression { dependenciesSupportJDK >= 10 } }
+            steps {
+                withMaven(maven: 'maven', jdk: 'JDK 10') {
+                    sh "${mvn} clean verify -Djava.version=10"
+                }
+            }
+        }
+    }
+}
+
+private boolean isReleaseBranch() {
+    return branchStartsWith('release/')
+}
+
+private boolean branchStartsWith(final String branchName) {
+    startsWith(env.GIT_BRANCH, branchName)
+}
+
+private boolean isPublished(final String repo) {
+    startsWith(env.GIT_URL, repo)
+}
+
+private static boolean startsWith(final String value, final String match) {
+    value != null && value.startsWith(match)
+}
+
+private boolean notSnapshot() {
+    return !(readMavenPom(file: 'pom.xml').version).contains("SNAPSHOT")
+}