Enable signing for publication into Gradle plugin portal

^KT-53172 Fixed

buildSrc/src/main/kotlin/GradleCommon.kt

@@ -54,9 +54,11 @@ enum class GradlePluginVariant(
 /**
  * Configures common pom configuration parameters
  */
-fun Project.configureCommonPublicationSettingsForGradle() {
+fun Project.configureCommonPublicationSettingsForGradle(
+    signingRequired: Boolean
+) {
     plugins.withId("maven-publish") {
-        configureDefaultPublishing()
+        configureDefaultPublishing(signingRequired)
 
         extensions.configure<PublishingExtension> {
             publications

buildSrc/src/main/kotlin/gradle-plugin-common-configuration.gradle.kts

@@ -3,6 +3,7 @@
  * Use of this source code is governed by the Apache 2.0 license that can be found in the license/LICENSE.txt file.
  */
 import com.gradle.publish.PluginBundleExtension
+import plugins.signLibraryPublication
 
 plugins {
     kotlin("jvm")
@@ -12,7 +13,11 @@ plugins {
     id("com.gradle.plugin-publish")
 }
 
-configureCommonPublicationSettingsForGradle()
+// Enable signing for publications into Gradle Plugin Portal
+val signPublication = !version.toString().contains("-SNAPSHOT") &&
+        (project.gradle.startParameter.taskNames.contains("publishPlugins") || signLibraryPublication)
+
+configureCommonPublicationSettingsForGradle(signPublication)
 configureKotlinCompileTasksGradleCompatibility()
 extensions.extraProperties["kotlin.stdlib.default.dependency"] = "false"
 

buildSrc/src/main/kotlin/gradle-plugin-dependency-configuration.gradle.kts

@@ -4,6 +4,7 @@
  */
 
 import plugins.KotlinBuildPublishingPlugin.Companion.DEFAULT_MAIN_PUBLICATION_NAME
+import plugins.signLibraryPublication
 
 plugins {
     `java-library`
@@ -12,7 +13,7 @@ plugins {
     `maven-publish`
 }
 
-configureCommonPublicationSettingsForGradle()
+configureCommonPublicationSettingsForGradle(signLibraryPublication)
 configureKotlinCompileTasksGradleCompatibility()
 extensions.extraProperties["kotlin.stdlib.default.dependency"] = "false"
 

buildSrc/src/main/kotlin/plugins/KotlinBuildPublishingPlugin.kt

@@ -129,8 +129,14 @@ fun MavenPublication.configureKotlinPomAttributes(project: Project, explicitDesc
     }
 }
 
+val Project.signLibraryPublication: Boolean
+    get() = project.providers.gradleProperty("signingRequired").forUseAtConfigurationTime().orNull?.toBoolean()
+        ?: project.providers.gradleProperty("isSonatypeRelease").forUseAtConfigurationTime().orNull?.toBoolean()
+        ?: false
 
-fun Project.configureDefaultPublishing() {
+fun Project.configureDefaultPublishing(
+    signingRequired: Boolean = signLibraryPublication
+) {
     configure<PublishingExtension> {
         repositories {
             maven {
@@ -140,9 +146,6 @@ fun Project.configureDefaultPublishing() {
         }
     }
 
-    val signingRequired = project.providers.gradleProperty("signingRequired").forUseAtConfigurationTime().orNull?.toBoolean()
-        ?: project.providers.gradleProperty("isSonatypeRelease").forUseAtConfigurationTime().orNull?.toBoolean() ?: false
-
     if (signingRequired) {
         apply<SigningPlugin>()
         configureSigning()

gradle/verification-metadata.xml

@@ -1715,12 +1715,6 @@
             <sha256 value="19889dbdf1b254b2601a5ee645b8147a974644882297684c798afe5d63d78dfe" origin="Generated by Gradle"/>
          </artifact>
       </component>
-      <component group="com.google.code.gson" name="gson" version="2.8.5">
-         <artifact name="gson-2.8.5.jar">
-            <md5 value="089104cb90d8b4e1aa00b1f5faef0742" origin="Generated by Gradle"/>
-            <sha256 value="233a0149fc365c9f6edbd683cfe266b19bdc773be98eabdaf6b3c924b48e7d81" origin="Generated by Gradle"/>
-         </artifact>
-      </component>
       <component group="com.google.code.gson" name="gson" version="2.8.9">
          <artifact name="gson-2.8.9.jar">
             <md5 value="e67627f67e03301092dc7de0a2d7cef8" origin="Generated by Gradle"/>
@@ -9201,12 +9195,6 @@
             <sha256 value="938a2d08fe54050d7610b944d8ddc3a09355710d9e6be0aac838dbc04e9a2825" origin="Generated by Gradle"/>
          </artifact>
       </component>
-      <component group="org.robolectric" name="android-all" version="4.4_r1-robolectric-1">
-         <artifact name="android-all-4.4_r1-robolectric-1.jar">
-            <md5 value="1e478f10e107d1dddad09d32508f2ec9" origin="Generated by Gradle"/>
-            <sha256 value="d41d3ffa6c89398c9e8c3c3659de405994151c040b4a898fc4c885c226732e28" origin="Generated by Gradle"/>
-         </artifact>
-      </component>
       <component group="org.robolectric" name="android-all" version="4.4_r1-robolectric-r2">
          <artifact name="android-all-4.4_r1-robolectric-r2.jar">
             <md5 value="3098240c179f04b929699e8f2d4b11cf" origin="Generated by Gradle"/>

libraries/examples/kotlin-gradle-subplugin-example/build.gradle

@@ -35,7 +35,7 @@ dependencies {
     compileOnly project(':dependencies:intellij-core')
 }
 
-GradleCommonKt.configureCommonPublicationSettingsForGradle(project)
+GradleCommonKt.configureCommonPublicationSettingsForGradle(project, false)
 GradleCommonKt.configureKotlinCompileTasksGradleCompatibility(project)
 GradleCommonKt.excludeGradleCommonDependencies(project, sourceSets.main)
 TasksKt.optInToExperimentalCompilerApi(project)

plugins/atomicfu/atomicfu-runtime/build.gradle.kts

@@ -1,3 +1,5 @@
+import plugins.signLibraryPublication
+
 description = "Runtime library for the Atomicfu compiler plugin"
 
 plugins {
@@ -26,7 +28,7 @@ kotlin {
     }
 }
 
-configureCommonPublicationSettingsForGradle()
+configureCommonPublicationSettingsForGradle(signLibraryPublication)
 
 publishing {
     publications {