HHH-19341 Use publish Gradle plugin for snapshot publishing

Author: marko-bekhta

ci/snapshot-publish.Jenkinsfile

@@ -42,13 +42,9 @@ pipeline {
                     withCredentials([
                             // https://github.com/gradle-nexus/publish-plugin#publishing-to-maven-central-via-sonatype-ossrh
                             // TODO: HHH-19309:
-                            //  Once we switch to maven-central publishing (from nexus2) we need to add a new credentials
-                            //  to use the following env variable names to set the user/password:
-                            //  - JRELEASER_MAVENCENTRAL_USERNAME
-                            //  - JRELEASER_MAVENCENTRAL_TOKEN
-                            //  Also use the new `credentialsId` for Maven Central, e.g.:
-                            //  usernamePassword(credentialsId: '???????', passwordVariable: 'JRELEASER_MAVENCENTRAL_TOKEN', usernameVariable: 'JRELEASER_MAVENCENTRAL_USERNAME'),
-                            usernamePassword(credentialsId: 'ossrh.sonatype.org', passwordVariable: 'JRELEASER_NEXUS2_PASSWORD', usernameVariable: 'JRELEASER_NEXUS2_USERNAME'),
+                            //  Once we switch to maven-central publishing (from nexus2) we need to update credentialsId:
+                            // https://docs.gradle.org/current/samples/sample_publishing_credentials.html#:~:text=via%20environment%20variables
+                            usernamePassword(credentialsId: 'ossrh.sonatype.org', passwordVariable: 'ORG_GRADLE_PROJECT_snapshotsPassword', usernameVariable: 'ORG_GRADLE_PROJECT_snapshotsUsername'),
                             string(credentialsId: 'Hibernate-CI.github.com', variable: 'JRELEASER_GITHUB_TOKEN'),
                             // https://docs.gradle.org/current/userguide/publishing_gradle_plugins.html#account_setup
                             usernamePassword(credentialsId: 'gradle-plugin-portal-api-key', passwordVariable: 'GRADLE_PUBLISH_SECRET', usernameVariable: 'GRADLE_PUBLISH_KEY'),

jreleaser.yml

@@ -27,16 +27,6 @@ deploy:
         releaseRepository: false
         stagingRepositories:
           - target/staging-deploy/maven
-      maven-central-snapshot:
-        active: SNAPSHOT
-        url: https://oss.sonatype.org/service/local
-        snapshotUrl: https://oss.sonatype.org/content/repositories/snapshots/
-        closeRepository: true
-        releaseRepository: true
-        javadocJar: false
-        sign: false
-        stagingRepositories:
-          - target/staging-deploy/maven
     mavenCentral:
       maven-central:
         # TODO: HHH-19309: Change to RELEASE once switching to Maven-Central:
@@ -49,15 +39,3 @@ deploy:
           - target/staging-deploy/maven
         # Deployment identifier used for publication.
         # deploymentId: dd9991b0-18a7-41e7-b1fe-37b8ea936f85
-      maven-central-snapshot:
-        # TODO: HHH-19309: Change to SNAPSHOT once switching to Maven-Central:
-        active: NEVER
-        url: https://central.sonatype.com/api/v1/publisher
-        snapshotSupported: true
-        applyMavenCentralRules: true
-        javadocJar: false
-        sign: false
-        stagingRepositories:
-          - target/staging-deploy/maven
-        # Deployment identifier used for publication.
-        # deploymentId: dd9991b0-18a7-41e7-b1fe-37b8ea936f85

local-build-plugins/src/main/groovy/local.publishing.gradle

@@ -67,6 +67,10 @@ publishingExtension.repositories {
         name = "staging"
         url = rootProject.layout.buildDirectory.dir("staging-deploy${File.separator}maven")
     }
+    maven {
+        name = 'snapshots'
+        url = "https://oss.sonatype.org/content/repositories/snapshots/"
+    }
 }
 
 // ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

release/README.adoc

@@ -44,6 +44,8 @@ Start the appropriate Jenkins https://ci.hibernate.org/view/Release/job/hibernat
 NOTE: When a release is started, the job coordinates with the unified Hibernate https://github.com/hibernate/hibernate-release-scripts[release scripts] in a number of stages and steps,
 calling tasks on this module's link:./release.gradle[Gradle script] and leveraging link:../jreleaser.yml[JReleaser configuration].
 
+NOTE: Snapshot releases are not relying on JReleaser but on built-in Gradle publish plugin. See the link:../ci/snapshot-publish.Jenkinsfile[Jenkinsfile].
+
 At a high-level, this process:
 
 * builds and verifies the individual modules