Move to gradle

Fixes gitlab4j#1166

.github/workflows/ci-build.yml

@@ -9,38 +9,21 @@ on:
 
 jobs:
 
-  build-jdk8:
-    name: "Build JDK 8"
+  build-gradle:
+    name: "Build"
     runs-on: ubuntu-latest
-    services:
-      gitlab-instance:
-        image: gitlab/gitlab-ce:12.9.2-ce.0
-        env:
-          GITLAB_OMNIBUS_CONFIG: gitlab_rails['initial_root_password']="password";gitlab_rails['lfs_enabled']=false;
-        ports:
-          - 8090:80
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v4
         with:
           fetch-depth: 0
-      - name: Set up JDK 8
-        uses: actions/setup-java@v2
+      - name: Setup JDK 8
+        uses: actions/setup-java@v3
         with:
-          distribution: adopt-hotspot
+          distribution: temurin
           java-version: 8
-      - name: Get Date
-        id: get-date
-        run: |
-          echo "date=$(/bin/date -u "+%Y-%m")" >> $GITHUB_OUTPUT
-        shell: bash
-      - name: Cache Maven Repository
-        id: cache-maven
-        uses: actions/cache@v2
-        with:
-          path: ~/.m2/repository
-          # refresh cache every month to avoid unlimited growth
-          key: gitlab4jmaven-${{ steps.get-date.outputs.date }}
+      - name: Setup Gradle
+        uses: gradle/gradle-build-action@v2
       - name: GitLab4j verify
         id: gitlab4j-verify
         run: |
-          ./mvnw verify -B -V
+          ./gradlew build --console=PLAIN --stacktrace

build.gradle

@@ -0,0 +1,155 @@
+
+plugins {
+    id 'java-library'
+    id 'signing'
+    id 'maven-publish'
+    id 'de.marcphilipp.nexus-publish' version '0.4.0'
+    id 'net.researchgate.release' version '3.0.2'
+    id 'io.codearte.nexus-staging' version '0.22.0'
+}
+
+wrapper {
+    gradleVersion = '7.6.2'
+}
+
+group = 'org.gitlab4j'
+
+dependencies {
+    api 'jakarta.activation:jakarta.activation-api:1.2.2'
+    api 'org.glassfish.jersey.inject:jersey-hk2:2.39.1'
+    api 'org.glassfish.jersey.core:jersey-client:2.39.1'
+    api 'org.glassfish.jersey.connectors:jersey-apache-connector:2.39.1'
+    api 'org.glassfish.jersey.media:jersey-media-multipart:2.39.1'
+    api 'org.glassfish.jersey.media:jersey-media-json-jackson:2.39.1'
+    api 'jakarta.servlet:jakarta.servlet-api:4.0.4'
+    testImplementation 'org.junit.jupiter:junit-jupiter:5.8.2'
+    testImplementation 'org.mockito:mockito-core:4.4.0'
+    testImplementation 'org.mockito:mockito-junit-jupiter:4.4.0'
+    testImplementation 'org.hamcrest:hamcrest-all:1.3'
+    testImplementation 'uk.org.webcompere:system-stubs-jupiter:1.2.0'
+}
+
+signing {
+    useGpgCmd()
+    sign(publishing.publications)
+}
+
+tasks.withType(Sign) {
+    onlyIf {
+        project.hasProperty('signing.gnupg.keyName')
+    }
+}
+
+java {
+    withJavadocJar()
+    withSourcesJar()
+
+    compileJava.options.encoding = "UTF-8"
+    toolchain {
+        languageVersion = JavaLanguageVersion.of(8)
+    }
+}
+
+repositories {
+    mavenCentral()
+}
+
+nexusPublishing {
+    repositories {
+        sonatype {
+            nexusUrl.set(uri("https://oss.sonatype.org/service/local/"))
+            username = project.findProperty('sonatypeUser') ?: ''
+            password = project.findProperty('sonatypePassword') ?: ''
+        }
+    }
+}
+
+nexusStaging {
+    serverUrl = "https://oss.sonatype.org/service/local/"
+    packageGroup = 'org.gitlab4j'
+    username = project.findProperty('sonatypeUser') ?: ''
+    password = project.findProperty('sonatypePassword') ?: ''
+}
+
+publishing {
+    publications {
+        mavenJava(MavenPublication) {
+            pom {
+                name = 'GitLab4J-API - GitLab API Java Client'
+                description = 'GitLab4J-API (gitlab4j-api) provides a full featured Java client library for working with GitLab repositories and servers via the GitLab REST API.'
+                packaging = 'jar'
+                url = 'https://' + "$githubRepositoryOwner" + '.github.io/' + "$githubRepositoryName" + '/'
+                licenses {
+                    license {
+                        name = 'The MIT License (MIT)'
+                        url = 'http://opensource.org/licenses/MIT'
+                        distribution = 'repo'
+                    }
+                }
+                developers {                                   
+                    developer {
+                        id = 'gmessner'
+                        name =  'Greg Messner'
+                        email = '[email protected]'
+                    }
+                    developer {
+                        id = 'gdesaintmartinlacaze'
+                        name =  'Gautier de Saint Martin Lacaze'
+                        email = '[email protected]'
+                    }
+                    developer {
+                        url = 'https://github.com/orgs/' + "$githubRepositoryOwner" + '/people'
+                    }
+                }
+                scm {
+                    connection = 'scm:git:https://github.com/' + "$githubRepositoryOwner" + '/' + "$githubRepositoryName" + '.git'
+                    developerConnection = 'scm:git:https://github.com/' + "$githubRepositoryOwner" + '/' + "$githubRepositoryName" + '.git'
+                    url = 'https://github.com/' + "$githubRepositoryOwner" + '/' + "$githubRepositoryName" + '/'
+                }
+            }
+            from components.java
+        }
+    }
+}
+
+release {
+    buildTasks = ['releaseBuild']
+    git {
+        requireBranch.set('main')
+    }
+}
+
+task releaseBuild {
+    dependsOn(
+            'checkLastVersionValue',
+            'clean',
+            'build',
+            project.getTasksByName('publishToSonatype', true)
+    )
+}
+
+tasks.register('checkLastVersionValue') {
+    doLast {
+        if(version.endsWith('SNAPSHOT')) {
+            throw new GradleException("version '$version' ends with SNAPSHOT, this is not a release build!")
+        }
+        if(lastVersion != version) {
+            throw new GradleException("lastVersion '$lastVersion' does not match version '$version', fix it in the 'gradle.properties' file.")
+        }
+    }
+}
+
+def updateLastVersionValueTask = tasks.register('updateLastVersionValue') {
+    doLast {
+        def propertiesFile = file('gradle.properties')
+        def content = propertiesFile.text
+        content = content.replaceAll("lastVersion=[0-9\\.]+", "lastVersion=" + version.replace('-SNAPSHOT', ''))
+        propertiesFile.text = content
+    }
+}
+
+model {
+    tasks.unSnapshotVersion {
+        dependsOn updateLastVersionValueTask
+    }
+}

gradle.properties

@@ -0,0 +1,5 @@
+version=5.7.0-SNAPSHOT
+lastVersion=5.6.0
+
+githubRepositoryOwner=gitlab4j
+githubRepositoryName=gitlab4j-api

gradle/wrapper/gradle-wrapper.properties

@@ -0,0 +1,6 @@
+distributionBase=GRADLE_USER_HOME
+distributionPath=wrapper/dists
+distributionUrl=https\://services.gradle.org/distributions/gradle-7.6.2-bin.zip
+networkTimeout=10000
+zipStoreBase=GRADLE_USER_HOME
+zipStorePath=wrapper/dists