import org.gradle.api.artifacts.ModuleDependency; //导入依赖的package包/类
public DslOriginDependencyMetadata createDependencyDescriptor(String clientConfiguration, AttributeContainer clientAttributes, ModuleDependency dependency) {
    ProjectDependencyInternal projectDependency = (ProjectDependencyInternal) dependency;
    projectDependency.beforeResolved();
    Module module = getProjectModule(dependency);
    ModuleVersionSelector requested = new DefaultModuleVersionSelector(module.getGroup(), module.getName(), module.getVersion());
    ComponentSelector selector = DefaultProjectComponentSelector.newSelector(projectDependency.getDependencyProject());

    LocalComponentDependencyMetadata dependencyMetaData = new LocalComponentDependencyMetadata(
        selector, requested, clientConfiguration,
        clientAttributes,
        projectDependency.getTargetConfiguration(),
        convertArtifacts(dependency.getArtifacts()),
        convertExcludeRules(clientConfiguration, dependency.getExcludeRules()),
        false, false, dependency.isTransitive());
    return new DslOriginDependencyMetadataWrapper(dependencyMetaData, dependency);
}
 

import org.gradle.api.artifacts.ModuleDependency; //导入依赖的package包/类
public DslOriginDependencyMetadata createDependencyDescriptor(String clientConfiguration, AttributeContainer clientAttributes, ModuleDependency dependency) {
    ExternalModuleDependency externalModuleDependency = (ExternalModuleDependency) dependency;
    boolean force = externalModuleDependency.isForce();
    boolean changing = externalModuleDependency.isChanging();
    boolean transitive = externalModuleDependency.isTransitive();

    ModuleVersionSelector requested = new DefaultModuleVersionSelector(nullToEmpty(dependency.getGroup()), nullToEmpty(dependency.getName()), nullToEmpty(dependency.getVersion()));
    ModuleComponentSelector selector = DefaultModuleComponentSelector.newSelector(requested);

    LocalComponentDependencyMetadata dependencyMetaData = new LocalComponentDependencyMetadata(
            selector, requested, clientConfiguration, clientAttributes, dependency.getTargetConfiguration(),
            convertArtifacts(dependency.getArtifacts()),
            convertExcludeRules(clientConfiguration, dependency.getExcludeRules()),
            force, changing, transitive);
    return new DslOriginDependencyMetadataWrapper(dependencyMetaData, dependency);
}
 

import org.gradle.api.artifacts.ModuleDependency; //导入依赖的package包/类
protected boolean isKeyEquals(ModuleDependency dependencyRhs) {
    if (getGroup() != null ? !getGroup().equals(dependencyRhs.getGroup()) : dependencyRhs.getGroup() != null) {
        return false;
    }
    if (!getName().equals(dependencyRhs.getName())) {
        return false;
    }
    if (getTargetConfiguration() != null ? !getTargetConfiguration().equals(dependencyRhs.getTargetConfiguration())
        : dependencyRhs.getTargetConfiguration()!=null) {
        return false;
    }
    if (getVersion() != null ? !getVersion().equals(dependencyRhs.getVersion())
            : dependencyRhs.getVersion() != null) {
        return false;
    }
    return true;
}
 

import org.gradle.api.artifacts.ModuleDependency; //导入依赖的package包/类
protected boolean isCommonContentEquals(ModuleDependency dependencyRhs) {
    if (!isKeyEquals(dependencyRhs)) {
        return false;
    }
    if (isTransitive() != dependencyRhs.isTransitive()) {
        return false;
    }
    if (getArtifacts() != null ? !getArtifacts().equals(dependencyRhs.getArtifacts())
            : dependencyRhs.getArtifacts() != null) {
        return false;
    }
    if (getExcludeRules() != null ? !getExcludeRules().equals(dependencyRhs.getExcludeRules())
            : dependencyRhs.getExcludeRules() != null) {
        return false;
    }
    return true;
}
 

import org.gradle.api.artifacts.ModuleDependency; //导入依赖的package包/类
/**
 * Add dependencies to the POM
 *
 * Adds all dependencies from the provided configuration with the provided scope to the POM and to the set of
 * existing dependencies. Dependencies are only added if they are not contained in the set of existing dependencies.
 *
 * @param dependencies Element to add dependencies to
 * @param configuration Configuration whose provides depencencies to add
 * @param scope Scope to use for added depencencies
 */
protected void addDependencies(Element dependencies, Configuration configuration, String scope) {
    for (@NonNull Dependency dependency : configuration.getDependencies()) {
        if (dependency instanceof ModuleDependency) {
            ModuleDependency moduleDependency = (ModuleDependency) dependency;

            if (moduleDependency.getArtifacts().isEmpty()) {
                addDependency(dependencies, moduleDependency, moduleDependency.getName(), null, "jar", scope);
            }
            else {
                for (DependencyArtifact artifact : moduleDependency.getArtifacts()) {
                    addDependency(dependencies, moduleDependency, artifact.getName(), artifact.getClassifier(),
                            artifact.getType(), scope);
                }
            }
        }
    }
}
 

import org.gradle.api.artifacts.ModuleDependency; //导入依赖的package包/类
@TaskAction
protected void deployProject()
{
    Set<PublishArtifact> seenArtifacts = new HashSet<>();

    for ( SoftwareComponent component : getProject().getComponents() )
    {
        SoftwareComponentInternal internalComponent = (SoftwareComponentInternal) component;

        for ( UsageContext usage : internalComponent.getUsages() )
        {
            Set<? extends ModuleDependency> dependencies = usage.getDependencies();

            for ( PublishArtifact artifact : usage.getArtifacts() )
            {
                if ( seenArtifacts.add( artifact ) )
                {
                    deploy( artifact, dependencies );
                }
            }
        }
    }
}
 

import org.gradle.api.artifacts.ModuleDependency; //导入依赖的package包/类
public void from(SoftwareComponent component) {
    if (this.component != null) {
        throw new InvalidUserDataException(String.format("Maven publication '%s' cannot include multiple components", name));
    }
    this.component = (SoftwareComponentInternal) component;

    for (Usage usage : this.component.getUsages()) {
        // TODO Need a smarter way to map usage to artifact classifier
        for (PublishArtifact publishArtifact : usage.getArtifacts()) {
            artifact(publishArtifact);
        }

        // TODO Need a smarter way to map usage to scope
        for (ModuleDependency dependency : usage.getDependencies()) {
            if (dependency instanceof ProjectDependency) {
                addProjectDependency((ProjectDependency) dependency);
            } else {
                addModuleDependency(dependency);
            }
        }
    }
}
 

import org.gradle.api.artifacts.ModuleDependency; //导入依赖的package包/类
public void resolve(DependencyMetaData dependency, ComponentIdentifier identifier, BuildableComponentResolveResult result) {
    resolver.resolve(dependency, identifier, result);

    if (result.getFailure() != null) {
        return;
    }
    if (dependency instanceof DslOriginDependencyMetaData) {
        ModuleDependency maybeClientModule = ((DslOriginDependencyMetaData) dependency).getSource();
        if (maybeClientModule instanceof ClientModule) {
            ClientModule clientModule = (ClientModule) maybeClientModule;

            MutableModuleComponentResolveMetaData clientModuleMetaData = ((MutableModuleComponentResolveMetaData)result.getMetaData()).copy();
            addClientModuleDependencies(clientModule, clientModuleMetaData);

            setClientModuleArtifact(clientModuleMetaData);

            result.setMetaData(clientModuleMetaData);
        }
    }
}
 

import org.gradle.api.artifacts.ModuleDependency; //导入依赖的package包/类
public EnhancedDependencyDescriptor createDependencyDescriptor(String configuration, ModuleDependency dependency, ModuleDescriptor parent) {
    ModuleRevisionId moduleRevisionId = createModuleRevisionId(dependency);
    ClientModule clientModule = getClientModule(dependency);
    MutableModuleVersionMetaData moduleVersionMetaData = clientModuleMetaDataFactory.createModuleDescriptor(
            moduleRevisionId, clientModule.getDependencies());

    EnhancedDependencyDescriptor dependencyDescriptor = new ClientModuleDependencyDescriptor(
            clientModule,
            parent,
            moduleVersionMetaData,
            moduleRevisionId,
            clientModule.isForce(),
            false,
            clientModule.isTransitive());
    addExcludesArtifactsAndDependencies(configuration, clientModule, dependencyDescriptor);
    return dependencyDescriptor;
}
 

import org.gradle.api.artifacts.ModuleDependency; //导入依赖的package包/类
private Set<DependencyGraphNodeResult> getFirstLevelNodes(Spec<? super Dependency> dependencySpec) {
    Set<DependencyGraphNodeResult> matches = new LinkedHashSet<DependencyGraphNodeResult>();
    TransientConfigurationResults graphResults = loadTransientGraphResults(selectedArtifacts);
    for (Map.Entry<ModuleDependency, DependencyGraphNodeResult> entry : graphResults.getFirstLevelDependencies().entrySet()) {
        if (dependencySpec.isSatisfiedBy(entry.getKey())) {
            matches.add(entry.getValue());
        }
    }
    return matches;
}
 

import org.gradle.api.artifacts.ModuleDependency; //导入依赖的package包/类
private void addClientModuleDependencies(ClientModule clientModule, MutableModuleComponentResolveMetadata clientModuleMetaData) {
    List<DependencyMetadata> dependencies = Lists.newArrayList();
    for (ModuleDependency moduleDependency : clientModule.getDependencies()) {
        DependencyMetadata dependencyMetadata = dependencyDescriptorFactory.createDependencyDescriptor(moduleDependency.getTargetConfiguration(), null, moduleDependency);
        dependencies.add(dependencyMetadata);
    }
    clientModuleMetaData.setDependencies(dependencies);
}
 

import org.gradle.api.artifacts.ModuleDependency; //导入依赖的package包/类
private IvyDependencyDescriptorFactory findFactoryForDependency(ModuleDependency dependency) {
    for (IvyDependencyDescriptorFactory ivyDependencyDescriptorFactory : dependencyDescriptorFactories) {
        if (ivyDependencyDescriptorFactory.canConvert(dependency)) {
            return ivyDependencyDescriptorFactory;
        }
    }
    throw new InvalidUserDataException("Can't map dependency of type: " + dependency.getClass());
}
 

import org.gradle.api.artifacts.ModuleDependency; //导入依赖的package包/类
private void addDependencies(BuildableLocalComponentMetadata metaData, ConfigurationInternal configuration) {
    AttributeContainerInternal attributes = configuration.getAttributes().asImmutable();
    for (Dependency dependency : configuration.getDependencies()) {
        if (dependency instanceof ModuleDependency) {
            ModuleDependency moduleDependency = (ModuleDependency) dependency;
            metaData.addDependency(dependencyDescriptorFactory.createDependencyDescriptor(configuration.getName(), attributes, moduleDependency));
        } else if (dependency instanceof FileCollectionDependency) {
            final FileCollectionDependency fileDependency = (FileCollectionDependency) dependency;
            metaData.addFiles(configuration.getName(), new DefaultLocalFileDependencyMetadata(fileDependency));
        } else {
            throw new IllegalArgumentException("Cannot convert dependency " + dependency + " to local component dependency metadata.");
        }
    }
}
 

import org.gradle.api.artifacts.ModuleDependency; //导入依赖的package包/类
@Override
public ModuleDependency getModuleDependency(long nodeId) {
    ModuleDependency m = modulesMap.get(nodeId);
    if (m == null) {
        throw new IllegalArgumentException("Unable to find module dependency for id: " + nodeId);
    }
    return m;
}
 

import org.gradle.api.artifacts.ModuleDependency; //导入依赖的package包/类
public void visitEdge(DependencyGraphNode resolvedConfiguration) {
    for (DependencyGraphEdge dependency : resolvedConfiguration.getIncomingEdges()) {
        if (dependency.getFrom() == root) {
            ModuleDependency moduleDependency = dependency.getModuleDependency();
            builder.addFirstLevelDependency(moduleDependency, resolvedConfiguration);
        }
    }
}
 

import org.gradle.api.artifacts.ModuleDependency; //导入依赖的package包/类
@Override
public void addFirstLevelDependency(ModuleDependency moduleDependency, DependencyGraphNode dependency) {
    builder.firstLevelDependency(dependency.getNodeId());
    //we don't serialise the module dependencies at this stage so we need to keep track
    //of the mapping module dependency <-> resolved dependency
    modulesMap.put(dependency.getNodeId(), moduleDependency);
}
 

import org.gradle.api.artifacts.ModuleDependency; //导入依赖的package包/类
@Override
public ModuleDependency getModuleDependency() {
    if (dependencyMetadata instanceof DslOriginDependencyMetadata) {
        return ((DslOriginDependencyMetadata) dependencyMetadata).getSource();
    }
    return null;
}
 

import org.gradle.api.artifacts.ModuleDependency; //导入依赖的package包/类
private static ClientModule extractClientModule(DependencyMetadata dependencyMetadata) {
    if (dependencyMetadata instanceof DslOriginDependencyMetadata) {
        ModuleDependency source = ((DslOriginDependencyMetadata) dependencyMetadata).getSource();
        if (source instanceof ClientModule) {
            return (ClientModule) source;
        }
    }
    return null;
}
 

import org.gradle.api.artifacts.ModuleDependency; //导入依赖的package包/类
public void from(SoftwareComponent component) {
    if (this.component != null) {
        throw new InvalidUserDataException(String.format("Ivy publication '%s' cannot include multiple components", name));
    }
    this.component = (SoftwareComponentInternal) component;

    configurations.maybeCreate("default");

    for (Usage usage : this.component.getUsages()) {
        String conf = usage.getName();
        configurations.maybeCreate(conf);
        configurations.getByName("default").extend(conf);

        for (PublishArtifact publishArtifact : usage.getArtifacts()) {
            artifact(publishArtifact).setConf(conf);
        }

        for (ModuleDependency dependency : usage.getDependencies()) {
            // TODO: When we support multiple components or configurable dependencies, we'll need to merge the confs of multiple dependencies with same id.
            String confMapping = String.format("%s->%s", conf, dependency.getTargetConfiguration() == null ? Dependency.DEFAULT_CONFIGURATION : dependency.getTargetConfiguration());
            if (dependency instanceof ProjectDependency) {
                addProjectDependency((ProjectDependency) dependency, confMapping);
            } else {
                addModuleDependency(dependency, confMapping);
            }
        }
    }
}
 

import org.gradle.api.artifacts.ModuleDependency; //导入依赖的package包/类
public ClientModule copy() {
    DefaultClientModule copiedClientModule = new DefaultClientModule(getGroup(), getName(), getVersion(), getTargetConfiguration());
    copyTo(copiedClientModule);
    for (ModuleDependency dependency : dependencies) {
        copiedClientModule.addDependency(dependency.copy());
    }
    return copiedClientModule;
}