Migrate build to gradle

.github/dependabot.yml

@@ -1,6 +1,6 @@
 version: 2
 updates:
-  - package-ecosystem: "maven"
+  - package-ecosystem: "gradle"
     directory: "/"
     schedule:
       interval: "weekly"

.gitignore

@@ -14,9 +14,11 @@
 # virtual machine crash logs, see http://www.java.com/en/download/help/error_hotspot.xml
 hs_err_pid*
 target
+build
+out
+.gradle
 
 # IntelliJ
 .idea/
 *.iml
-README.md
 gradle-enterprise-workspace-id

Jenkinsfile

@@ -4,42 +4,57 @@ pipeline {
   }
   agent {
     docker {
-      image 'maven:3.6-jdk-11'
-      args '-v /home/jenkins/.m2:/var/maven/.m2 -v /home/jenkins/.gnupg:/.gnupg -e MAVEN_CONFIG=/var/maven/.m2 -e MAVEN_OPTS=-Duser.home=/var/maven'
+      // Need an image with git installed that is why we stick with maven image for now though we're using gradle
+      image 'maven:3.9.4-eclipse-temurin-11'
+      args '-v /home/jenkins/.m2:/var/maven/.m2 -v /home/jenkins/.gradle:/var/gradle/.gradle -v /home/jenkins/.gnupg:/.gnupg -e GRADLE_OPTS=-Duser.home=/var/gradle -e MAVEN_OPTS=-Duser.home=/var/maven -e MAVEN_CONFIG='
     }
   }
   environment {
     COVERALLS_REPO_TOKEN = credentials('coveralls_repo_token_restrict_imports_rule')
-    GPG_SECRET = credentials('gpg_password')
+    BUILD_CACHE = credentials('build_cache')
+    ORG_GRADLE_PROJECT_sonatype = credentials('SONATYPE_NEXUS')
+    ORG_GRADLE_PROJECT_signingPassword = credentials('gpg_password')
+    ORG_GRADLE_PROJECT_base64EncodedAsciiArmoredSigningKey  = credentials('gpg_private_key')
   }
   stages {
     stage('Build') {
       steps {
-        sh 'mvn -B clean install -Pwith-coverage'
+        withGradle {
+          sh './gradlew build'
+        }
       }
     }
-    stage('Coverage') {
+    stage('Report Coverage') {
       steps {
-        sh 'mvn -B jacoco:report jacoco:report-integration coveralls:report -DrepoToken=$COVERALLS_REPO_TOKEN -Pwith-coverage'
+        withGradle {
+          sh './gradlew coveralls'
+        }
       }
     }
-    stage('javadoc') {
+    stage('readme') {
       steps {
-        sh 'mvn -B javadoc:javadoc'
+        withGradle {
+          sh './gradlew generateReadmeAndReleaseNotes'
+        }
       }
     }
     stage('Deploy SNAPSHOT') {
       when {
-        branch 'develop'
+        expression {
+            return env.BRANCH_NAME == 'develop';
+        }
       }
       steps {
-        sh 'mvn -B -Prelease -DskipTests=true -Dgpg.passphrase=${GPG_SECRET} deploy'
+        withGradle {
+          sh './gradlew sign publishToSonatype'
+        }
       }
     }
   }
   post {
     always {
-      junit (testResults: '**/target/surefire-reports/**.xml,**/target/*/reports/**.xml', allowEmptyResults: true)
+        archiveArtifacts(artifacts: '*.md')
+        junit (testResults: '**/build/test-results/test/**.xml,**/build/*/reports/**.xml', allowEmptyResults: true)
     }
   }
 }

JenkinsfileRelease

@@ -4,18 +4,19 @@ pipeline {
   }
   agent {
     docker {
-      image 'maven:3.6-jdk-11'
-      args '-v /home/jenkins/.m2:/var/maven/.m2 -v /home/jenkins/.gnupg:/.gnupg -e MAVEN_CONFIG=/var/maven/.m2 -e MAVEN_OPTS=-Duser.home=/var/maven'
+      // Need an image with git installed that is why we stick with maven image for now though we're using gradle
+      image 'maven:3.9.4-eclipse-temurin-11'
+      args '-v /home/jenkins/.m2:/var/maven/.m2 -v /home/jenkins/.gradle:/var/gradle/.gradle -v /home/jenkins/.gnupg:/.gnupg -e GRADLE_OPTS=-Duser.home=/var/gradle -e MAVEN_OPTS=-Duser.home=/var/maven -e MAVEN_CONFIG='
     }
   }
   environment {
-    GPG_SECRET = credentials('gpg_password')
     GITHUB = credentials('Github-Username-Pw')
-    GITHUB_RELEASE_TOKEN = credentials('github_registry_release')
     GIT_ASKPASS='./.git-askpass'
-  }
-  parameters {
-    booleanParam(name: 'PUBLISH_GITHUB', defaultValue: true, description: 'Whether to publish a GitHub release')
+    COVERALLS_REPO_TOKEN = credentials('coveralls_repo_token_restrict_imports_rule')
+    ORG_GRADLE_PROJECT_ghToken = credentials('github_registry_release')
+    ORG_GRADLE_PROJECT_sonatype = credentials('SONATYPE_NEXUS')
+    ORG_GRADLE_PROJECT_signingPassword = credentials('gpg_password')
+    ORG_GRADLE_PROJECT_base64EncodedAsciiArmoredSigningKey  = credentials('gpg_private_key')
   }
   stages {
     stage ('Ensure dev branch') {
@@ -25,7 +26,7 @@ pipeline {
         }
       }
       steps {
-        error("Releasing is only possible from develop branch")
+        error("Releasing is only possible from dev branch")
       }
     }
     stage ('Set Git Information') {
@@ -39,34 +40,26 @@ pipeline {
         sh 'git config user.name "Jenkins"'
       }
     }
-    stage('Create release branch') {
-      steps {
-        sh 'mvn -B -Prelease gitflow:release-start'
-      }
-    }
-    stage('Verify release') {
-      steps {
-        sh 'mvn -B -Prelease -Dgpg.passphrase=${GPG_SECRET} install'
-      }
-    }
-    stage('Update readme') {
+    stage('Build Release') {
       steps {
-        sh 'git add README.md RELEASE_NOTES.md'
-        sh 'git commit -m "Update README and RELEASE_NOTES"'
+        withGradle {
+          sh './gradlew build'
+        }
       }
     }
     stage('Perform release') {
       steps {
-        sh "mvn -B gitflow:release-finish -DargLine=\"-Prelease -B -Dgpg.passphrase=${GPG_SECRET} -DskipTests=true\""
+        withGradle {
+          sh './gradlew release'
+        }
       }
     }
     stage('Create GitHub release') {
-      when {
-        expression { params.PUBLISH_GITHUB }
-      }
       steps {
-        sh 'git checkout master'
-        sh "mvn -B -N github-release:github-release -Dgithub.release-token=${GITHUB_RELEASE_TOKEN}"
+        withGradle {
+          sh 'git checkout master'
+          sh './gradlew githubRelease'
+        }
       }
     }
   }

README.md

@@ -1,6 +1,6 @@
 <!-- This file is auto generated during release from readme/README.md -->
 
-[![Maven Central](https://img.shields.io/static/v1?label=MavenCentral&message=2.4.0&color=blue)](https://search.maven.org/artifact/de.skuzzle.enforcer/restrict-imports-enforcer-rule/2.4.0/jar)
+[![Maven Central](https://img.shields.io/static/v1?label=MavenCentral&message=2.4.1-SNAPSHOT&color=blue)](https://search.maven.org/artifact/de.skuzzle.enforcer/restrict-imports-enforcer-rule/2.4.1-SNAPSHOT/jar)
 [![Coverage Status](https://coveralls.io/repos/github/skuzzle/restrict-imports-enforcer-rule/badge.svg?branch=master)](https://coveralls.io/github/skuzzle/restrict-imports-enforcer-rule?branch=master)
 [![Twitter Follow](https://img.shields.io/twitter/follow/skuzzleOSS.svg?style=social)](https://twitter.com/skuzzleOSS)
 
@@ -12,7 +12,7 @@ usage of unwanted classes! [More](#rationale)
 - [x] Groovy (since 0.15)
 - [ ] Scala (see [Issue 24](https://github.com/skuzzle/restrict-imports-enforcer-rule/issues/24))
 
-Tested against _maven-enforcer-plugin_ versions `1.4.1` and `3.3.0`.
+Tested against _maven-enforcer-plugin_ versions `1.4.1` and `3.4.0`.
 
 ## Simple usage
 This is a minimal usage example. Please scroll down for detailed configuration
@@ -22,12 +22,12 @@ information or have a look at the [Full configuration example](#full-configurati
 <plugin>
     <groupId>org.apache.maven.plugins</groupId>
     <artifactId>maven-enforcer-plugin</artifactId>
-    <version>3.3.0</version>
+    <version>3.4.0</version>
     <dependencies>
         <dependency>
             <groupId>de.skuzzle.enforcer</groupId>
-            <artifactId>restrict-imports-enforcer-rule-parent</artifactId>
-            <version>2.4.0</version>
+            <artifactId>restrict-imports-enforcer-rule</artifactId>
+            <version>2.4.1-SNAPSHOT</version>
         </dependency>
     </dependencies>
     <executions>

RELEASE_NOTES.md

@@ -1,4 +1,4 @@
-[![Maven Central](https://img.shields.io/static/v1?label=MavenCentral&message=2.4.0&color=blue)](https://search.maven.org/artifact/de.skuzzle.enforcer/restrict-imports-enforcer-rule/2.4.0/jar)
+[![Maven Central](https://img.shields.io/static/v1?label=MavenCentral&message=2.4.1-SNAPSHOT&color=blue)](https://search.maven.org/artifact/de.skuzzle.enforcer/restrict-imports-enforcer-rule/2.4.1-SNAPSHOT/jar)
 
 ### Bug fixes
 * [#55](https://github.com/skuzzle/restrict-imports-enforcer-rule/issues/55) Make parallel analysis the default
@@ -10,6 +10,6 @@ Maven Central coordinates for this release:
 <dependency>
     <groupId>de.skuzzle.enforcer</groupId>
     <artifactId>restrict-imports-enforcer-rule</artifactId>
-    <version>2.4.0</version>
+    <version>2.4.1-SNAPSHOT</version>
 </dependency>
 ```

build.gradle.kts

@@ -0,0 +1,50 @@
+plugins {
+    alias(libs.plugins.researchgate.release)
+    alias(libs.plugins.nexus.publish)
+    alias(libs.plugins.github.release)
+    `base-conventions`
+}
+
+tasks.named("afterReleaseBuild").configure {
+    dependsOn(provider {
+        subprojects
+            .filter { it.pluginManager.hasPlugin("publishing-conventions") }
+            .map { it.tasks.named("publishToSonatype") }
+    })
+    dependsOn("addFilesToGit")
+}
+
+tasks.register("addFilesToGit") {
+    onlyIf("not a snapshot version") { !project.isSnapshot }
+    dependsOn()
+    group = "release"
+    description = "Commit changed/generated files during release"
+    doLast {
+        // NOTE: .execute() extension function defined in buildSrc
+        "git add README.md RELEASE_NOTES.md".execute()
+        "git add --force docs/*".execute()
+    }
+}
+
+release {
+    pushReleaseVersionBranch.set("master")
+    tagTemplate.set("v$version")
+    git {
+        requireBranch.set("develop")
+    }
+}
+
+githubRelease {
+    token(provider { property("ghToken") as String? })
+    owner.set(property("githubUser").toString())
+    repo.set(property("githubRepo").toString())
+    draft.set(true)
+    body(provider { file("RELEASE_NOTES.md").readText(Charsets.UTF_8) })
+}
+
+nexusPublishing.repositories {
+    sonatype {
+        username.set(property("sonatype_USR").toString())
+        password.set(property("sonatype_PSW").toString())
+    }
+}