Use lighter weight Maven Central publishing plugin

JReleaser is a large plugin intended to manage the whole project release
lifecycle. It was only being used to publish to the new Maven Central
Publisher API. Some transitive dependencies conflict with those of
Spotless 8.x.

This change switches to the GradleUp nmcp (New Maven Central Publishing)
plugin. It provides only the required publishing capability and is much
lighter weight.

Signed-off-by: Mark S. Lewis <Mark.S.Lewis@outlook.com>

Author: bestbeforetoday

.github/workflows/release.yml

@@ -48,13 +48,12 @@ jobs:
       - uses: gradle/actions/setup-gradle@4d9f0ba0025fe599b4ebab900eb7f3a1d93ef4c2 # v5.0.0
       - name: Publish to Maven Central
         run: |
-          ./gradlew publishAllPublicationsToStagingRepository
-          ./gradlew jreleaserDeploy --stacktrace
+          ./gradlew publishAggregationToCentralPortal
         env:
           ORG_GRADLE_PROJECT_signingKey: ${{ secrets.OSSRH_GPG_SECRET_KEY }}
           ORG_GRADLE_PROJECT_signingPassword: ${{ secrets.OSSRH_GPG_SECRET_KEY_PASSWORD }}
-          JRELEASER_MAVENCENTRAL_USERNAME: ${{ secrets.MAVENCENTRAL_USERNAME }}
-          JRELEASER_MAVENCENTRAL_PASSWORD: ${{ secrets.MAVENCENTRAL_PASSWORD }}
+          ORG_GRADLE_PROJECT_mavenCentralUsername: ${{ secrets.MAVENCENTRAL_USERNAME }}
+          ORG_GRADLE_PROJECT_mavenCentralPassword: ${{ secrets.MAVENCENTRAL_PASSWORD }}
 
   docker-build-push:
     name: Push Docker image

build.gradle

@@ -7,6 +7,8 @@
 plugins {
     id "com.github.ben-manes.versions" version "0.53.0"
     id "com.diffplug.spotless" version "8.0.0"
+    id "com.gradleup.nmcp.aggregation" version "1.2.0"
+    id "com.gradleup.nmcp" version "1.2.0" apply false
 }
 
 version = '2.5.8'
@@ -22,6 +24,18 @@ if (properties.containsKey('NIGHTLY')) {
     ext.nightly = false
 }
 
+nmcpAggregation {
+    centralPortal {
+        username = findProperty('mavenCentralUsername')
+        password = findProperty('mavenCentralPassword')
+        publishingType = "AUTOMATIC"
+    }
+}
+
+dependencies {
+    nmcpAggregation(project('fabric-chaincode-shim'))
+}
+
 allprojects {
     apply plugin: "com.diffplug.spotless"
 

fabric-chaincode-shim/build.gradle

@@ -7,9 +7,9 @@
 plugins {
     id 'maven-publish'
     id 'signing'
-    id 'org.jreleaser' version '1.20.0'
     id 'jacoco'
     id 'pmd'
+    id "com.gradleup.nmcp"
 }
 
 pmd {
@@ -224,8 +224,8 @@ javadoc {
 def final stagingDeployUrl = layout.buildDirectory.dir('staging-deploy')
 
 publishing {
-     publications {
-         shim(MavenPublication) {
+    publications {
+        shim(MavenPublication) {
             groupId = project.group
             artifactId = project.name
             version = project.version
@@ -261,16 +261,10 @@ publishing {
                     }
                 }
             }
-         }
-
-     }
-
-    repositories {
-        maven {
-            name = "Staging"
-            url = stagingDeployUrl
         }
+    }
 
+    repositories {
         maven {
             name = "GitHub"
             url = "https://maven.pkg.github.com/hyperledger/fabric-chaincode-java"
@@ -283,34 +277,16 @@ publishing {
 }
 
 signing {
-    required = { gradle.taskGraph.hasTask(":${project.name}:publishShimPublicationToStagingRepository") }
-
     def signingKey = findProperty('signingKey')
     def signingPassword = findProperty('signingPassword')
     useInMemoryPgpKeys(signingKey, signingPassword)
 
-    sign publishing.publications.shim
-}
-
-jreleaser {
-    gitRootSearch = true
-    deploy {
-        maven {
-            mavenCentral {
-                sonatype {
-                    active = 'ALWAYS'
-                    url = 'https://central.sonatype.com/api/v1/publisher'
-                    sign = false
-                    stagingRepository(file(stagingDeployUrl).toString())
-                }
-            }
-        }
-    }
-    release {
-        github {
-            enabled = false
-        }
+    required = {
+        gradle.taskGraph.hasTask(":${project.name}:publishShimPublicationToNmcpRepository")
+            || gradle.taskGraph.hasTask(":${project.name}:publishShimPublicationToGitHubRepository")
     }
+
+    sign publishing.publications.shim
 }
 
 // Need to specify the sourcesJar task BEFORE the java{withSourcesJar()} so that it picks up the duplicatesStratergy