Re-instate the PublishLocalPluin.

Use the PublishLocalPlugin to review and verify Project artifacts locally before they are published to a remove repository, such as Artifactory or Maven Central.

buildSrc/src/main/java/org/springframework/gradle/maven/PublishLocalPlugin.java

@@ -0,0 +1,53 @@
+/*
+ * Copyright 2017-present the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express
+ * or implied. See the License for the specific language governing
+ * permissions and limitations under the License.
+ */
+package org.springframework.gradle.maven;
+
+import java.io.File;
+
+import org.gradle.api.Plugin;
+import org.gradle.api.Project;
+import org.gradle.api.publish.PublishingExtension;
+import org.gradle.api.publish.maven.plugins.MavenPublishPlugin;
+
+/**
+ * Gradle Plugin used to publish all {@link Project} artifacts locally
+ * under {@literal rootProject/buildDir/publications/repos}.
+ *
+ * This is useful for inspecting the generated {@link Project} artifacts to ensure they are correct
+ * before publishing the {@link Project} artifacts to Artifactory or Maven Central.
+ *
+ * @author Rob Winch
+ * @author John Blum
+ * @see org.gradle.api.Plugin
+ * @see org.gradle.api.Project
+ * @since 2.0.0
+ */
+public class PublishLocalPlugin implements Plugin<Project> {
+
+	@Override
+	public void apply(Project project) {
+
+		project.getPlugins().withType(MavenPublishPlugin.class).all(mavenPublish -> {
+
+			PublishingExtension publishing = project.getExtensions().getByType(PublishingExtension.class);
+
+			publishing.getRepositories().maven(maven -> {
+				maven.setName("local");
+				maven.setUrl(new File(project.getRootProject().getBuildDir(), "publications/repos"));
+			});
+		});
+	}
+}

buildSrc/src/main/java/org/springframework/gradle/maven/SpringMavenPlugin.java

@@ -41,6 +41,7 @@ public class SpringMavenPlugin implements Plugin<Project> {
 		pluginManager.apply(MavenPublishingConventionsPlugin.class);
 		pluginManager.apply(PublishAllJavaComponentsPlugin.class);
 		pluginManager.apply(PublishArtifactsPlugin.class);
+		pluginManager.apply(PublishLocalPlugin.class);
 		pluginManager.apply(SpringSigningPlugin.class);
 		pluginManager.apply(ArtifactoryPlugin.class);
 	}