Update publishing config

.github/workflows/run_publish_maven.yml

@@ -38,9 +38,9 @@ jobs:
     uses: ./.github/workflows/run_gradle_task.yml
     secrets: inherit
     with:
-      runs-on: macos-latest # only macOS supports building all Kotlin targets
+      runs-on: linux-latest
       gradle-task: >-
-        publishAllPublicationsToSonatypeReleaseRepository
+        nmcpPublish
         --stacktrace
         --no-configuration-cache
         --no-parallel
@@ -56,7 +56,7 @@ jobs:
     uses: ./.github/workflows/run_gradle_task.yml
     secrets: inherit
     with:
-      runs-on: macos-latest
+      runs-on: linux-latest
       gradle-task: >-
         publishAllPublicationsToAdamkoDevRepository
         --stacktrace

build.gradle.kts

@@ -99,3 +99,18 @@ idea {
     )
   }
 }
+
+tasks.nmcpPublishAllPublicationsToCentralPortal {
+  val isReleaseVersion = mavenPublishing.isReleaseVersion
+  onlyIf("is release version") { isReleaseVersion.get() }
+}
+tasks.nmcpPublishAllPublicationsToCentralPortalSnapshots {
+  val isReleaseVersion = mavenPublishing.isReleaseVersion
+  onlyIf("is snapshot version") { !isReleaseVersion.get() }
+}
+
+tasks.register("nmcpPublish") {
+  group = PublishingPlugin.PUBLISH_TASK_GROUP
+  dependsOn(tasks.nmcpPublishAllPublicationsToCentralPortal)
+  dependsOn(tasks.nmcpPublishAllPublicationsToCentralPortalSnapshots)
+}

buildSrc/build.gradle.kts

@@ -8,4 +8,5 @@ dependencies {
   implementation("org.gradle.kotlin:gradle-kotlin-dsl-plugins:$expectedKotlinDslPluginsVersion")
 
   implementation(libs.gradlePlugin.pluginPublishPlugin)
+  implementation(libs.gradlePlugin.nmcp)
 }

buildSrc/src/main/kotlin/buildsrc/conventions/maven-publishing.gradle.kts

@@ -5,6 +5,7 @@ import buildsrc.settings.MavenPublishingSettings
 plugins {
   `maven-publish`
   signing
+  id("com.gradleup.nmcp")
 }
 
 val mavenPublishing =
@@ -43,34 +44,18 @@ publishing {
 //endregion
 
 
-//region GitHub branch publishing
 publishing {
   repositories {
-    mavenPublishing.githubPublishDir.orNull?.let { githubPublishDir ->
-      maven(githubPublishDir) {
-        name = "GitHubPublish"
-      }
+    maven(rootProject.layout.buildDirectory.dir("project-repo")) {
+      name = "ProjectRootBuild"
     }
   }
 }
-//endregion
 
 
 //region Maven Central publishing/signing
 publishing {
   repositories {
-    val mavenCentralUsername = mavenPublishing.mavenCentralUsername.orNull
-    val mavenCentralPassword = mavenPublishing.mavenCentralPassword.orNull
-    if (!mavenCentralUsername.isNullOrBlank() && !mavenCentralPassword.isNullOrBlank()) {
-      maven(mavenPublishing.sonatypeReleaseUrl) {
-        name = "SonatypeRelease"
-        credentials {
-          username = mavenCentralUsername
-          password = mavenCentralPassword
-        }
-      }
-    }
-
     val adamkoDevUsername = mavenPublishing.adamkoDevUsername.orNull
     val adamkoDevPassword = mavenPublishing.adamkoDevPassword.orNull
     if (!adamkoDevUsername.isNullOrBlank() && !adamkoDevPassword.isNullOrBlank()) {
@@ -94,31 +79,30 @@ signing {
   val key = mavenPublishing.signingKey.orNull
   val password = mavenPublishing.signingPassword.orNull
 
+  val signingCredentialsPresent =
+    !keyId.isNullOrBlank() && !key.isNullOrBlank() && !password.isNullOrBlank()
+
+  if (signingCredentialsPresent) {
+    logger.info("maven-publishing.gradle.kts enabled signing for ${project.displayName}")
+    useInMemoryPgpKeys(keyId, key, password)
+  }
+
   if (!keyId.isNullOrBlank() && !key.isNullOrBlank() && !password.isNullOrBlank()) {
     useInMemoryPgpKeys(keyId, key, password)
   }
 
   setRequired({
-    gradle.taskGraph.allTasks
+    signingCredentialsPresent || gradle.taskGraph.allTasks
       .filterIsInstance<PublishToMavenRepository>()
-      .any {
-        it.repository.name in setOf(
+      .any { task ->
+        task.repository.name in setOf(
           "SonatypeRelease",
           "AdamkoDev",
         )
       }
   })
 }
 
-//afterEvaluate {
-//  com.gradle.plugin-publish automatically signs tasks in a weird way, that stops this from working:
-//  signing {
-//    sign(publishing.publications)
-//  }
-//}
-//endregion
-
-
 //region Fix Gradle warning about signing tasks using publishing task outputs without explicit dependencies
 // https://youtrack.jetbrains.com/issue/KT-46466 https://github.com/gradle/gradle/issues/26091
 tasks.withType<AbstractPublishToMaven>().configureEach {
@@ -138,3 +122,16 @@ tasks.withType<AbstractPublishToMaven>().configureEach {
   }
 }
 //endregion
+
+//region Maven Central can't handle parallel uploads, so limit parallel uploads with a service.
+abstract class MavenPublishLimiter : BuildService<BuildServiceParameters.None>
+
+val mavenPublishLimiter =
+  gradle.sharedServices.registerIfAbsent("mavenPublishLimiter", MavenPublishLimiter::class) {
+    maxParallelUsages = 1
+  }
+
+tasks.withType<PublishToMavenRepository>().configureEach {
+  usesService(mavenPublishLimiter)
+}
+//endregion

buildSrc/src/main/kotlin/buildsrc/settings/MavenPublishingSettings.kt

@@ -17,7 +17,7 @@ abstract class MavenPublishingSettings @Inject constructor(
   private val providers: ProviderFactory,
 ) {
 
-  private val isReleaseVersion: Provider<Boolean> =
+  val isReleaseVersion: Provider<Boolean> =
     providers.provider { !project.version.toString().endsWith("-SNAPSHOT") }
 
 

gradle/libs.versions.toml

@@ -4,6 +4,7 @@ junit = "6.0.1"
 kotest = "6.0.7"
 
 gradlePlugin-pluginPublishPlugin = "2.0.0"
+gradlePlugin-nmcp = "1.4.3"
 
 [libraries]
 
@@ -19,4 +20,5 @@ junit-jupiter = { module = "org.junit.jupiter:junit-jupiter", version.ref = "jun
 
 ## region Gradle Plugins
 gradlePlugin-pluginPublishPlugin = { module = "com.gradle.publish:plugin-publish-plugin", version.ref = "gradlePlugin-pluginPublishPlugin" }
+gradlePlugin-nmcp = { module = "com.gradleup.nmcp:nmcp", version.ref = "gradlePlugin-nmcp" }
 ## endregion