add plugin publishing configuration

Author: NikkyAI

atomicfu-gradle-plugin/build.gradle

@@ -2,8 +2,21 @@
  * Copyright 2017-2018 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license.
  */
 
+buildscript {
+    repositories {
+        maven {
+            url "https://plugins.gradle.org/m2/"
+        }
+    }
+    dependencies {
+        classpath "com.gradle.publish:plugin-publish-plugin:0.16.0"
+    }
+}
+
 apply plugin: 'kotlin'
 apply plugin: 'java-gradle-plugin'
+apply plugin: 'maven-publish'
+apply plugin: "com.gradle.plugin-publish"
 
 if (rootProject.ext.jvm_ir_enabled) {
     kotlin.target.compilations.all {
@@ -73,3 +86,21 @@ task createClasspathManifest {
 dependencies {
     testRuntime files(createClasspathManifest)
 }
+
+gradlePlugin {
+    plugins {
+        create("atomicfu") {
+            id = "kotlinx-atomicfu"
+            displayName = "Kotlinx Atomicfu Plugin"
+            description = "The idiomatic way to use atomic operations in Kotlin "
+            implementationClass = "kotlinx.atomicfu.plugin.gradle.AtomicFUGradlePlugin"
+        }
+    }
+}
+
+pluginBundle {
+    website = "https://github.com/Kotlin/kotlinx.atomicfu"
+    vcsUrl = "https://github.com/Kotlin/kotlinx.atomicfu"
+    tags = ["kotlin", "atomic", "kotlinx"]
+}
+