Migrate to Gradle

Signed-off-by: BT (calcastor/mame) <[email protected]>

.github/workflows/ci.yml

@@ -1,9 +1,10 @@
 name: Events CI
 on:
   pull_request:
-    branches: ['*']
+  workflow_dispatch:
   push:
-    branches: ['*']
+    branches:
+      - master
 jobs:
   build:
     runs-on: ubuntu-latest
@@ -16,11 +17,14 @@ jobs:
         with:
           java-version: 21
           distribution: temurin
-          cache: maven
-      - name: Build jar
-        run: mvn --batch-mode --update-snapshots verify
-      - name: Move generated jar file
-        run: mv target/Events*.jar Events.jar
+      # Configures gradle with caching
+      - name: Setup Gradle
+        uses: gradle/actions/setup-gradle@v4
+      # Run "gradlew publish" for origin/master and "gradlew build" for PRs or elsewhere
+      - name: Execute Gradle ${{ (github.repository == 'PGMDev/Events' && github.ref == 'refs/heads/master') && 'Publish' || 'Build' }}
+        run: ./gradlew ${{ (github.repository == 'PGMDev/Events' && github.ref == 'refs/heads/master') && 'publish' || 'build' }}
+        env:
+          GITHUB_TOKEN: ${{ (github.repository == 'PGMDev/Events' && github.ref == 'refs/heads/master') && secrets.GITHUB_TOKEN || '' }}
       - name: Create Release
         id: create_release
         if: github.event_name != 'pull_request' && (github.ref == 'refs/heads/master')
@@ -40,6 +44,6 @@ jobs:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
         with:
           upload_url: ${{ steps.create_release.outputs.upload_url }} 
-          asset_path: ./Events.jar
+          asset_path: ./build/libs/Events.jar
           asset_name: Events.jar
           asset_content_type: application/java-archive

.gitignore

@@ -2,7 +2,6 @@
 *.class
 
 # Package Files #
-*.jar
 *.war
 *.ear
 
@@ -95,3 +94,6 @@ application.linux64
 application.windows32
 application.windows64
 application.macosx
+
+# Gradle
+build/

build.gradle.kts

@@ -0,0 +1,53 @@
+import com.github.jengelman.gradle.plugins.shadow.tasks.ShadowJar
+
+plugins {
+    id("buildlogic.java-conventions")
+    `maven-publish`
+    id("com.gradleup.shadow")
+}
+
+tasks.named<ShadowJar>("shadowJar") {
+    archiveFileName = "Events.jar"
+    destinationDirectory = rootProject.projectDir.resolve("build/libs")
+
+    minimize()
+
+    dependencies {
+        exclude(dependency("org.jetbrains:annotations"))
+    }
+
+    exclude("META-INF/**")
+}
+
+publishing {
+    publications.create<MavenPublication>("Events") {
+        groupId = project.group as String
+        artifactId = project.name
+        version = project.version as String
+
+        artifact(tasks["shadowJar"])
+    }
+}
+
+tasks {
+    processResources {
+        filesMatching(listOf("plugin.yml")) {
+            expand(
+                "name" to project.name,
+                "description" to project.description,
+                "mainClass" to "dev.pgm.events.EventsPlugin",
+                "version" to project.version,
+                "commitHash" to project.latestCommitHash(),
+                "url" to "https://pgm.dev/"
+            )
+        }
+    }
+
+    named("jar") {
+        enabled = false
+    }
+
+    named("build") {
+        dependsOn(shadowJar)
+    }
+}

buildSrc/build.gradle.kts

@@ -0,0 +1,15 @@
+plugins {
+    // Support convention plugins written in Kotlin. Convention plugins are build scripts in 'src/main' that automatically become available as plugins in the main build.
+    `kotlin-dsl`
+}
+
+repositories {
+    // Use the plugin portal to apply community plugins in convention plugins.
+    gradlePluginPortal()
+}
+
+dependencies {
+    implementation("com.gradleup.shadow:shadow-gradle-plugin:8.3.0")
+    implementation("com.diffplug.spotless:spotless-plugin-gradle:7.0.0.BETA4")
+    implementation("de.skuzzle.restrictimports:restrict-imports-gradle-plugin:2.6.0")
+}

buildSrc/src/main/kotlin/buildlogic.java-conventions.gradle.kts

@@ -0,0 +1,61 @@
+plugins {
+    `java-library`
+    id("com.diffplug.spotless")
+    id("de.skuzzle.restrictimports")
+}
+
+java {
+    toolchain {
+        languageVersion = JavaLanguageVersion.of(21)
+    }
+}
+
+repositories {
+    mavenLocal()
+    mavenCentral()
+    maven("https://oss.sonatype.org/content/repositories/snapshots/") // Snapshots
+    maven("https://repo.pgm.fyi/snapshots/") // PGM-specific depdencies
+    maven("https://repo.papermc.io/repository/maven-public/") // Needed for bungeecord-chat
+}
+
+dependencies {
+    implementation("org.incendo:cloud-annotations:2.0.0")
+    implementation("org.jetbrains:annotations:22.0.0")
+
+    compileOnly("net.md-5:bungeecord-chat:1.20-R0.2-deprecated+build.18")
+    compileOnly("dev.pgm.paper:paper-api:1.8_1.21.1-SNAPSHOT")
+    compileOnly("tc.oc.pgm:core:0.16-SNAPSHOT")
+}
+
+group = "dev.pgm"
+version = "1.0.0-SNAPSHOT"
+description = "Manage PvP tournament events"
+
+tasks {
+    withType<JavaCompile>() {
+        options.encoding = "UTF-8"
+    }
+    withType<Javadoc>() {
+        options.encoding = "UTF-8"
+    }
+}
+
+spotless {
+    ratchetFrom = "origin/master"
+    java {
+        removeUnusedImports()
+        palantirJavaFormat("2.47.0").style("GOOGLE").formatJavadoc(true)
+    }
+}
+
+
+restrictImports {
+    group {
+        reason = "Use org.jetbrains.annotations to add annotations"
+        bannedImports = listOf("javax.annotation.**")
+    }
+    group {
+        reason = "Use tc.oc.pgm.util.Assert to add assertions"
+        bannedImports = listOf("com.google.common.base.Preconditions.**", "java.util.Objects.requireNonNull")
+    }
+}

buildSrc/src/main/kotlin/extensions.kt

@@ -0,0 +1,16 @@
+import org.gradle.api.Project
+import java.io.ByteArrayOutputStream
+
+
+fun Project.latestCommitHash(): String {
+    return runGitCommand(listOf("rev-parse", "--short", "HEAD"))
+}
+
+fun Project.runGitCommand(args: List<String>): String {
+    val byteOut = ByteArrayOutputStream()
+    exec {
+        commandLine = listOf("git") + args
+        standardOutput = byteOut
+    }
+    return byteOut.toString(Charsets.UTF_8.name()).trim()
+}

gradle/wrapper/gradle-wrapper.properties

@@ -0,0 +1,7 @@
+distributionBase=GRADLE_USER_HOME
+distributionPath=wrapper/dists
+distributionUrl=https\://services.gradle.org/distributions/gradle-8.10-bin.zip
+networkTimeout=10000
+validateDistributionUrl=true
+zipStoreBase=GRADLE_USER_HOME
+zipStorePath=wrapper/dists