Try to migrate to com.vanniktech.maven.publish

build.gradle

@@ -9,9 +9,13 @@ repositories {
 	mavenCentral()
 }
 
-apply from: rootProject.file('gradle/java-publish.gradle')
-apply from: rootProject.file('gradle/changelog.gradle')
 allprojects {
+	if (findProject('POM_ARTIFACT_ID') != null) {
+		group = getProperty('GROUP')
+		description = getProperty('POM_DESCRIPTION')
+		ext.artifactId = getProperty('POM_ARTIFACT_ID')
+	}
+
 	apply from: rootProject.file('gradle/spotless.gradle')
 }
 apply from: rootProject.file('gradle/spotless-freshmark.gradle')

gradle.properties

@@ -4,20 +4,26 @@ org.gradle.parallel=true
 org.gradle.caching=true
 org.gradle.configuration-cache=true
 
-name=spotless
-description=Spotless - keep your code spotless with Gradle
-org=diffplug
+GROUP=com.diffplug.spotless
 
-group=com.diffplug.spotless
+SONATYPE_AUTOMATIC_RELEASE=true
+SONATYPE_HOST=DEFAULT
+RELEASE_SIGNING_ENABLED=true
 
-artifactIdLib=spotless-lib
-artifactIdLibExtra=spotless-lib-extra
-artifactIdTestLib=spotless-testlib
+POM_URL=https://github.com/diffplug/spotless
 
-# naming convention '-maven-plugin' allows mvn 'spotless:check' instead of 'spotless-plugin-maven:check'
-artifactIdMaven=spotless-maven-plugin
+POM_LICENSE_NAME=The Apache Software License, Version 2.0
+POM_LICENSE_URL=https://www.apache.org/licenses/LICENSE-2.0.txt
+POM_LICENSE_DIST=repo
+
+POM_SCM_URL=https://github.com/diffplug/spotless
+POM_SCM_CONNECTION=scm:git:git://github.com/diffplug/spotless.git
+POM_SCM_DEV_CONNECTION=scm:git:ssh://[email protected]/diffplug/spotless.git
+
+POM_DEVELOPER_ID=diffplug
+POM_DEVELOPER_NAME=DiffPlug developers
+POM_DEVELOPER_URL=https://github.com/diffplug
 
-artifactIdGradle=spotless-plugin-gradle
 
 # Build requirements
 VER_JAVA=11

gradle/changelog.gradle

@@ -25,13 +25,7 @@ spotlessChangelog {
 	tagMessage "${kind} v{{version}}\n\n{{changes}}"
 	runAfterPush "gh release create ${kind}/{{version}} --title '${releaseTitle} v{{version}}' --notes-from-tag"
 
-	if (kind == 'gradle') {
-		forceNextVersion '7.0.0.BETA2'
-	} else if (kind == 'maven') {
-		forceNextVersion '2.44.0.BETA2'
-	} else {
-		forceNextVersion '3.0.0.BETA2'
-	}
+	forceNextVersion getProperty('VERSION_NAME')
 }
 
 if (project == rootProject) {

gradle/java-publish.gradle

@@ -1,40 +1,5 @@
-import java.nio.charset.StandardCharsets
-
-def decode64(String varName) {
-	String envValue = System.env[varName]
-	if (envValue == null) {
-		return ""
-	} else {
-		return new String(envValue.decodeBase64(), "UTF-8")
-	}
-}
-
-if (project.parent == null) {
-	group = 'com.diffplug.spotless'
-	def pass = System.env['ORG_GRADLE_PROJECT_nexus_pass64']
-	if (pass != null) {
-		pass = pass.decodeBase64()
-	}
-	// it's the root project
-	apply plugin: 'io.github.gradle-nexus.publish-plugin'
-	nexusPublishing {
-		repositories {
-			sonatype {
-				nexusUrl.set(uri("https://s01.oss.sonatype.org/service/local/"))
-				snapshotRepositoryUrl.set(uri("https://s01.oss.sonatype.org/content/repositories/snapshots/"))
-				username = System.env['ORG_GRADLE_PROJECT_nexus_user']
-				password = decode64('ORG_GRADLE_PROJECT_nexus_pass64')
-			}
-		}
-	}
-	def initTask = tasks.named('initializeSonatypeStagingRepository')
-	allprojects {
-		initTask.configure {
-			shouldRunAfter(tasks.withType(Sign))
-		}
-	}
-	return
-}
+apply plugin: 'com.vanniktech.maven.publish'
+apply plugin: 'java'
 
 ///////////
 // MAVEN //
@@ -48,9 +13,6 @@ tasks.named('sourcesJar') {
 	dependsOn 'jar'
 }
 
-apply plugin: 'maven-publish'
-apply plugin: 'signing'
-
 // Where it's possible to name parameters and methods clearly enough
 // that javadoc is not necessary, why make the code bigger?
 //
@@ -66,7 +28,7 @@ tasks.named('check') {
 
 // use markdown in javadoc
 def makeLink = { url, text -> "<a href=\"${url}\" style=\"text-transform: none;\">${text}</a>" }
-def javadocInfo = '<h2>' + makeLink("https://github.com/${org}/${name}", "${group}:${project.ext.artifactId}:${version}") +
+def javadocInfo = '<h2>' + makeLink("https://github.com/diffplug/spotless", "${group}:${project.ext.artifactId}:${version}") +
 		' by ' + makeLink('https://www.diffplug.com', 'DiffPlug') + '</h2>'
 
 String dotdotGradle = project.name.startsWith('eclipse-') ? '../../gradle' : '../gradle'
@@ -88,117 +50,6 @@ javadoc {
 	options.linksOffline("https://javadoc.io/static/com.diffplug.spotless/spotless-lib-extra/${rootProject.spotlessChangelog.versionLast}", "${dotdotGradle}/javadoc/spotless-lib-extra")
 }
 
-////////////////
-// PUBLISHING //
-////////////////
-final MAVEN_PLUGIN_ARTIFACT_NAME = 'spotless-maven-plugin'
-boolean isExt = project.name.startsWith('eclipse-')
-boolean isPluginMaven = project.ext.artifactId == 'spotless-maven-plugin'
-
-model {
-	publishing {
-		publications {
-			pluginMaven(MavenPublication) {
-				if (project.ext.artifactId != 'spotless-plugin-gradle') {
-					from components.java
-				}
-
-				groupId project.group
-				artifactId project.ext.artifactId
-				version project.version
-
-				pom.withXml {
-					// add MavenCentral requirements to the POM
-					asNode().children().last() + {
-						resolveStrategy = Closure.DELEGATE_FIRST
-						name project.ext.artifactId
-						description project.description
-						url "https://github.com/${project.org}/${rootProject.name}"
-						scm {
-							url "https://github.com/${project.org}/${rootProject.name}"
-							connection "scm:git:https://github.com/${project.org}/${rootProject.name}.git"
-							developerConnection "scm:git:ssh:[email protected]/${project.org}/${rootProject.name}.git"
-						}
-						licenses {
-							if (isExt) {
-								license {
-									name 'Eclipse Public License - v 1.0'
-									url 'https://www.eclipse.org/legal/epl-v10.html'
-									distribution 'repo'
-								}
-							} else {
-								license {
-									name 'The Apache Software License, Version 2.0'
-									url 'https://www.apache.org/licenses/LICENSE-2.0.txt'
-									distribution 'repo'
-								}
-							}
-						}
-						if (isPluginMaven) {
-							// Maven plugin required Maven 3.1.0+ to run
-							prerequisites { maven '3.1.0' }
-						}
-						developers {
-							if (isExt) {
-								project.ext.developers.each { extId, extValues ->
-									developer {
-										id extId
-										name extValues['name']
-										email extValues['email']
-									}
-								}
-							} else {
-								if (isPluginMaven) {
-									developer {
-										id 'lutovich'
-										name 'Konstantin Lutovich'
-										email '[email protected]'
-									}
-								}
-								developer {
-									id 'nedtwigg'
-									name 'Ned Twigg'
-									email '[email protected]'
-								}
-							}
-						}
-					}
-				}
-			}
-		}
-	}
-}
-
-if (System.env['JITPACK'] == 'true' || version.endsWith('-SNAPSHOT')) {
-	signing {
-		setRequired(false)
-	}
-} else {
-	signing {
-		String gpg_key = decode64('ORG_GRADLE_PROJECT_gpg_key64')
-		useInMemoryPgpKeys(gpg_key, System.env['ORG_GRADLE_PROJECT_gpg_passphrase'])
-		sign(publishing.publications)
-	}
-
-	// find the project with the changelog (this project for plugins, root project for libs)
-	def changelogTasks = (tasks.names.contains('changelogBump') ? project : rootProject).tasks
-
-	// ensures that nothing will be built if changelogPush will end up failing
-	tasks.named('jar').configure {
-		dependsOn changelogTasks.named('changelogCheck')
-	}
-	// ensures that changelog bump and push only happens if the publish was successful
-	def thisProj = project
-	changelogTasks.named('changelogBump').configure {
-		dependsOn ":${thisProj.path}:publishPluginMavenPublicationToSonatypeRepository"
-		dependsOn ":closeAndReleaseSonatypeStagingRepository"
-		// if we have a Gradle plugin, we need to push it up to the plugin portal too
-		if (thisProj.tasks.names.contains('publishPlugins')) {
-			dependsOn thisProj.tasks.named('publishPlugins')
-		}
-	}
-}
-
 tasks.withType(AbstractArchiveTask).configureEach {
 	preserveFileTimestamps = false
 	reproducibleFileOrder = true

gradle/spotless-freshmark.gradle

@@ -1,5 +1,6 @@
 
 apply plugin: 'com.diffplug.spotless'
+apply plugin: 'com.diffplug.spotless-changelog'
 
 import com.diffplug.gradle.spotless.FreshMarkExtension
 

lib-extra/build.gradle

@@ -2,8 +2,7 @@ plugins {
 	id 'java-library'
 	id 'dev.equo.p2deps'
 }
-ext.artifactId = project.artifactIdLibExtra
-version = rootProject.spotlessChangelog.versionNext
+
 apply from: rootProject.file('gradle/java-setup.gradle')
 apply from: rootProject.file('gradle/java-publish.gradle')
 

lib-extra/gradle.properties

@@ -0,0 +1,4 @@
+POM_ARTIFACT_ID=spotless-lib-extra
+POM_NAME=Spotless Lib Extra
+POM_DESCRIPTION=Spotless shared lib extra for Gradle plugin and Maven plugin.
+VERSION_NAME=3.0.0.BETA3-SNAPSHOT

lib/build.gradle

@@ -2,8 +2,7 @@ plugins {
 	id 'java-library'
 	id 'io.github.davidburstrom.version-compatibility'
 }
-ext.artifactId = project.artifactIdLib
-version = rootProject.spotlessChangelog.versionNext
+
 apply from: rootProject.file('gradle/java-setup.gradle')
 apply from: rootProject.file('gradle/java-publish.gradle')
 

lib/gradle.properties

@@ -0,0 +1,4 @@
+POM_ARTIFACT_ID=spotless-lib
+POM_NAME=Spotless Lib
+POM_DESCRIPTION=Spotless shared lib for Gradle plugin and Maven plugin.
+VERSION_NAME=3.0.0.BETA3-SNAPSHOT

plugin-gradle/build.gradle

@@ -1,21 +1,15 @@
-apply from: rootProject.file('gradle/changelog.gradle')
-ext.artifactId = project.artifactIdGradle
-version = spotlessChangelog.versionNext
 apply plugin: 'java-library'
 apply plugin: 'com.gradle.plugin-publish'
 apply plugin: 'java-gradle-plugin'
+apply from: rootProject.file('gradle/changelog.gradle')
 apply from: rootProject.file('gradle/java-setup.gradle')
 apply from: rootProject.file('gradle/spotless-freshmark.gradle')
 
 
 dependencies {
-	if (version.endsWith('-SNAPSHOT') || (rootProject.spotlessChangelog.versionNext == rootProject.spotlessChangelog.versionLast)) {
-		api projects.lib
-		api projects.libExtra
-	} else {
-		api "com.diffplug.spotless:spotless-lib:${rootProject.spotlessChangelog.versionLast}"
-		api "com.diffplug.spotless:spotless-lib-extra:${rootProject.spotlessChangelog.versionLast}"
-	}
+	api projects.lib
+	api projects.libExtra
+
 	implementation "com.diffplug.durian:durian-core:${VER_DURIAN}"
 	implementation "com.diffplug.durian:durian-io:${VER_DURIAN}"
 	implementation "com.diffplug.durian:durian-collect:${VER_DURIAN}"

plugin-gradle/gradle.properties

@@ -0,0 +1,4 @@
+POM_ARTIFACT_ID=spotless-plugin-gradle
+POM_NAME=Spotless Gradle Plugin
+POM_DESCRIPTION=Spotless - keep your code spotless with Gradle.
+VERSION_NAME=7.0.0.BETA3-SNAPSHOT

plugin-maven/build.gradle

@@ -7,9 +7,6 @@ plugins {
 }
 
 apply from: rootProject.file('gradle/changelog.gradle')
-ext.artifactId = project.artifactIdMaven
-version = spotlessChangelog.versionNext
-
 apply from: rootProject.file("gradle/java-setup.gradle")
 apply from: rootProject.file('gradle/spotless-freshmark.gradle')
 

plugin-maven/gradle.properties

@@ -0,0 +1,6 @@
+POM_ARTIFACT_ID=spotless-maven-plugin
+POM_DEVELOPER_ID=lutovich
+POM_DEVELOPER_NAME=Konstantin Lutovich
+POM_NAME=Spotless Maven Plugin
+POM_DESCRIPTION=Spotless - keep your code spotless with Maven.
+VERSION_NAME=2.44.0.BETA3-SNAPSHOT

settings.gradle

@@ -9,8 +9,8 @@ plugins {
 	id 'com.diffplug.spotless' version '7.0.0.BETA2' apply false
 	// https://plugins.gradle.org/plugin/com.gradle.plugin-publish
 	id 'com.gradle.plugin-publish' version '1.2.1' apply false
-	// https://github.com/gradle-nexus/publish-plugin/releases
-	id 'io.github.gradle-nexus.publish-plugin' version '2.0.0' apply false
+	// https://github.com/vanniktech/gradle-maven-publish-plugin/releases
+	id 'com.vanniktech.maven.publish' version '0.29.0' apply false
 	// https://github.com/spotbugs/spotbugs-gradle-plugin/releases
 	id 'com.github.spotbugs' version '6.0.20' apply false
 	// https://github.com/diffplug/spotless-changelog/blob/main/CHANGELOG.md

testlib/build.gradle

@@ -1,8 +1,7 @@
 plugins {
 	id 'java-library'
 }
-ext.artifactId = project.artifactIdTestLib
-version = rootProject.spotlessChangelog.versionNext
+
 apply from: rootProject.file('gradle/java-setup.gradle')
 
 dependencies {