BUILD: use JReleaser for publishing to Maven Central

Author: remkop

build.gradle

@@ -1,10 +1,5 @@
 import aQute.bnd.gradle.Bundle
 
-group          = 'info.picocli'
-description    = 'Java command line parser with both an annotations API and a programmatic API. Usage help with ANSI styles and colors. Autocomplete. Nested subcommands. Easily included as source to avoid adding a dependency.'
-version        = "$projectVersion"
-ext.moduleName = 'info.picocli'
-
 buildscript {
     apply from: 'dependencies.gradle'
 
@@ -23,6 +18,15 @@ buildscript {
     }
 }
 
+plugins {
+    id 'org.jreleaser' version '1.17.0'
+}
+
+group          = 'info.picocli'
+description    = 'Java command line parser with both an annotations API and a programmatic API. Usage help with ANSI styles and colors. Autocomplete. Nested subcommands. Easily included as source to avoid adding a dependency.'
+version        = "$projectVersion"
+ext.moduleName = 'info.picocli'
+
 apply plugin: 'org.beryx.jar' // for compiling module-info on Java 8
 apply plugin: 'io.codearte.nexus-staging'
 

gradle/publish-mavencentral.gradle

@@ -1,10 +1,7 @@
 // This build file is based on/inspired by https://autsoft.net/publishing-an-android-library-to-mavencentral-in-2019/
 
 apply plugin: 'java'
-apply plugin: 'distribution'
 apply plugin: 'maven-publish'
-apply plugin: 'signing'
-
 
 task javadocJar(type: Jar, dependsOn: javadoc) {
     from javadoc.destinationDir
@@ -33,48 +30,11 @@ artifacts {
 tasks.withType(GenerateModuleMetadata) {
     enabled = false // fix for https://github.com/remkop/picocli/issues/1152
 }
-distributions {
-    main {
-        distributionBaseName = "${project.name}-all"
-        contents {
-            from jar
-            from javadocJar
-            from sourcesJar
-            from testJar
-            from testSourcesJar
-            from ('LICENSE')
-            from ("$rootDir/RELEASE-NOTES.md")
-        }
-    }
-}
 
 // different for each module
 group = PUBLISH_GROUP_ID
 version = PUBLISH_VERSION
 
-ext["signing.keyId"] = ''
-ext["signing.password"] = ''
-ext["signing.secretKeyRingFile"] = ''
-ext["ossrhUsername"] = ''
-ext["ossrhPassword"] = ''
-ext["sonatypeStagingProfileId"] = ''
-
-File secretPropsFile = project.rootProject.file('local.properties')
-if (secretPropsFile.exists()) {
-    Properties p = new Properties()
-    p.load(new FileInputStream(secretPropsFile))
-    p.each { name, value ->
-        ext[name] = value
-    }
-} else {
-    ext["signing.keyId"] = System.getenv('SIGNING_KEY_ID')
-    ext["signing.password"] = System.getenv('SIGNING_PASSWORD')
-    ext["signing.secretKeyRingFile"] = System.getenv('SIGNING_SECRET_KEY_RING_FILE')
-    ext["ossrhUsername"] = System.getenv('MAVEN_OSS_USER')
-    ext["ossrhPassword"] = System.getenv('MAVEN_OSS_PASSWORD')
-    ext["sonatypeStagingProfileId"] = System.getenv('SONATYPE_STAGING_PROFILE_ID')
-}
-
 publishing {
     publications {
         release(MavenPublication) {
@@ -118,27 +78,8 @@ publishing {
     }
     repositories {
         maven {
-            name = "sonatype"
-            url = "https://oss.sonatype.org/service/local/staging/deploy/maven2/"
-
-            credentials {
-                username = ossrhUsername
-                password = ossrhPassword
-            }
+            url = rootProject.layout.buildDirectory.dir('staging-deploy')
         }
     }
 }
 
-ext.isReleaseVersion = !version.endsWith("SNAPSHOT")
-
-signing {
-    required = { isReleaseVersion && gradle.taskGraph.hasTask("publish") }
-    sign publishing.publications
-}
-
-nexusStaging {
-    packageGroup = PUBLISH_GROUP_ID
-    stagingProfileId = '5db36034f05d47' // Log in to https://oss.sonatype.org/, go to Staging profiles, select your profile, and look at the ID in the URL
-    username = ossrhUsername
-    password = ossrhPassword
-}

gradle/release-tasks.gradle

@@ -1,3 +1,32 @@
+/**
+ * JReleaser expects all artifacts
+ * (created by the publishing config in gradle/publish-mavencentral.gradle)
+ * to exist in "${rootProject.projectDir}/build/staging-deploy" directory.
+ * JReleaser is only configured once, on the top-level project (not for each sub-project).
+ *
+ * See: https://jreleaser.org/guide/latest/examples/maven/maven-central.html
+ */
+jreleaser {
+    signing {
+        active = 'RELEASE'
+        armored = true
+    }
+    deploy {
+        maven {
+            nexus2 {
+                'maven-central' {
+                    active = 'RELEASE'
+                    url = 'https://oss.sonatype.org/service/local'
+                    snapshotUrl = 'https://oss.sonatype.org/content/repositories/snapshots/'
+                    closeRepository = true
+                    releaseRepository = false
+                    stagingRepository('build/staging-deploy')
+                }
+            }
+        }
+    }
+}
+
 task bumpReadmeVersion {
     doLast {
         // README.md
@@ -193,7 +222,9 @@ Release procedure:
     cd picocli-tests-java567 & set JAVA_HOME=C:\apps\jdk1.5.0_22\&& echo ++%JAVA_HOME%++ && gradlew clean build --no-daemon
 11. commit -m "Release picocli version ..."
 12. tag v$version
-13 ./gradlew publishReleasePublicationToSonatypeRepository - creates a Sonatype staging repository, and uploads artifacts
+13a. gradlew jreleaserConfig
+13b. gradlew clean pub jreleaserFullRelease --dryrun
+13c. gradlew clean pub jreleaserFullRelease
 14. Close the Sonatype info/picocli staging repo:
   a. Manually: Log in to https://oss.sonatype.org/ and in the menu on the left, select Staging repositories.
      Click the close button in the GUI and watch progress in the Activity tab.