/*
* Copyright 2013 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
*
* http://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.gradle.api.publish.internal;
import org.gradle.api.Project;
import org.gradle.api.artifacts.ModuleVersionIdentifier;
import org.gradle.api.artifacts.ProjectDependency;
import org.gradle.api.internal.project.ProjectInternal;
import org.gradle.api.internal.artifacts.DefaultModuleVersionIdentifier;
import org.gradle.api.publish.PublishingExtension;
import java.util.Iterator;
import java.util.Set;
/**
* The start of a service that will resolve a ProjectDependency into publication coordinates, to use for publishing.
* For now is a simple implementation, but at some point could utilise components in the dependency project, usage in the referencing project, etc.
*/
public class ProjectDependencyPublicationResolver {
public ModuleVersionIdentifier resolve(ProjectDependency dependency) {
Project dependencyProject = dependency.getDependencyProject();
((ProjectInternal) dependencyProject).evaluate();
PublishingExtension publishing = dependencyProject.getExtensions().findByType(PublishingExtension.class);
if (publishing == null || publishing.getPublications().withType(PublicationInternal.class).isEmpty()) {
// Project does not apply publishing (or has no publications): simply use the project name in place of the dependency name
return new DefaultModuleVersionIdentifier(dependency.getGroup(), dependencyProject.getName(), dependency.getVersion());
}
// See if all publications have the same identifier
Set<? extends PublicationInternal> publications = publishing.getPublications().withType(PublicationInternal.class);
Iterator<? extends PublicationInternal> iterator = publications.iterator();
ModuleVersionIdentifier candidate = iterator.next().getCoordinates();
while (iterator.hasNext()) {
ModuleVersionIdentifier alternative = iterator.next().getCoordinates();
if (!candidate.equals(alternative)) {
throw new UnsupportedOperationException("Publishing is not yet able to resolve a dependency on a project with multiple different publications.");
}
}
return candidate;
}
}