Merge pull request #2652 from square/bquenaudon.2023-09-18.internalpl…

…ugin

Introduce internal plugin

build-support/build.gradle.kts

@@ -1,5 +1,3 @@
-import org.jetbrains.kotlin.gradle.targets.js.nodejs.NodeJsRootExtension
-import org.jetbrains.kotlin.gradle.targets.js.nodejs.NodeJsRootPlugin
 import org.jetbrains.kotlin.gradle.tasks.KotlinCompile
 
 buildscript {
@@ -25,33 +23,45 @@ buildscript {
 plugins {
   `kotlin-dsl`
   `java-gradle-plugin`
+  kotlin("jvm") version "1.9.10"
 }
 
 repositories {
   mavenCentral()
+  google()
+  gradlePluginPortal()
 }
 
 dependencies {
-  add("compileOnly", kotlin("gradle-plugin"))
-  add("compileOnly", kotlin("gradle-plugin-api"))
+  compileOnly(libs.kotlin.gradleApi)
+  implementation(libs.pluginz.android)
+  implementation(libs.pluginz.binaryCompatibilityValidator)
   implementation(libs.pluginz.kotlin)
+  implementation(libs.vanniktechPublishPlugin)
+  implementation(libs.pluginz.dokka)
+  implementation(libs.kotlin.serialization)
+  implementation(libs.pluginz.buildConfig)
+  implementation(libs.pluginz.spotless)
+  implementation(libs.pluginz.kotlinSerialization)
+  implementation(libs.pluginz.shadow)
+  implementation(libs.pluginz.buildConfig)
+  implementation(libs.guava)
+
+  // Expose the generated version catalog API to the plugin.
+  implementation(files(libs::class.java.superclass.protectionDomain.codeSource.location))
 }
 
 gradlePlugin {
   plugins {
-    create("com.squareup.wire.build.logic") {
-      id = "com.squareup.wire.build.logic"
-      implementationClass = "BuildLogic"
+    create("wireBuild") {
+      id = "com.squareup.wire.build"
+      displayName = "Wire Build plugin"
+      description = "Gradle plugin for Wire build things"
+      implementationClass = "com.squareup.wire.buildsupport.WireBuildPlugin"
     }
   }
 }
 
-rootProject.plugins.withType(NodeJsRootPlugin::class) {
-  // 16+ required for Apple Silicon support
-  // https://youtrack.jetbrains.com/issue/KT-49109#focus=Comments-27-5259190.0-0
-  rootProject.extensions.getByType(NodeJsRootExtension::class).nodeVersion = "16.15.1"
-}
-
 allprojects {
   repositories {
     mavenCentral()
@@ -76,10 +86,4 @@ allprojects {
       freeCompilerArgs += "-progressive"
     }
   }
-
-  tasks.withType<JavaCompile>().configureEach {
-    sourceCompatibility = JavaVersion.VERSION_11.toString()
-    targetCompatibility = JavaVersion.VERSION_11.toString()
-    options.encoding = Charsets.UTF_8.toString()
-  }
 }

build-support/settings/README.md

@@ -0,0 +1,4 @@
+# Wire Settings Plugin
+
+This is a Gradle plugin applied to the root `settings.gradle` via `includeBuild`
+which automatically adds the `build-support/` Gradle plugin to all projects.

build-support/settings/build.gradle.kts

@@ -0,0 +1,21 @@
+plugins {
+  `kotlin-dsl`
+  `java-gradle-plugin`
+}
+
+gradlePlugin {
+  plugins {
+    create("wireSettings") {
+      id = "com.squareup.wire.settings"
+      displayName = "Wire settings plugin"
+      description = "Gradle plugin for Wire build settings"
+      implementationClass = "com.squareup.wire.buildsettings.WireSettingsPlugin"
+    }
+  }
+}
+
+repositories {
+  mavenCentral()
+  gradlePluginPortal()
+  google()
+}

build-support/settings/src/main/kotlin/com/squareup/wire/buildsettings/WireSettingsPlugin.kt

@@ -0,0 +1,24 @@
+package com.squareup.wire.buildsettings
+
+import org.gradle.api.Plugin
+import org.gradle.api.Project
+import org.gradle.api.initialization.Settings
+
+@Suppress("unused") // Invoked reflectively by Gradle.
+class WireSettingsPlugin : Plugin<Settings> {
+  override fun apply(target: Settings) {
+    fun applyWireBuildPlugin(project: Project) {
+      project.plugins.apply("com.squareup.wire.build")
+    }
+
+    target.gradle.allprojects {
+      if (project.path == ":") {
+        // The root project needs to evaluate the buildscript classpath before applying.
+        // Once we move to the plugins DSL in the main build we can remove this conditional.
+        project.afterEvaluate(::applyWireBuildPlugin)
+      } else {
+        project.beforeEvaluate(::applyWireBuildPlugin)
+      }
+    }
+  }
+}

build-support/src/main/kotlin/BuildLogic.kt → build-support/src/main/kotlin/com/squareup/wire/buildsupport/WireBuildExtension.kt

@@ -5,19 +5,22 @@
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at
  *
- * http://www.apache.org/licenses/LICENSE-2.0
+ *      https://www.apache.org/licenses/LICENSE-2.0
  *
  * Unless required by applicable law or agreed to in writing, software
  * distributed under the License is distributed on an "AS IS" BASIS,
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-import org.gradle.api.Plugin
-import org.gradle.api.Project
+package com.squareup.wire.buildsupport
 
-class BuildLogic : Plugin<Project> {
-  override fun apply(project: Project) {
-    // Do nothing.
-  }
+interface WireBuildExtension {
+
+  /**
+   * Enable artifact publishing and Dokka documentation generation.
+   *
+   * The published `artifactId` will be set to the project name.
+   */
+  fun publishing()
 }