import org.gradle.api.provider.Provider;

import javax.inject.Inject;
import java.io.File;

public class BwcGitExtension {

    private Provider<Version> bwcVersion;
    private Provider<String> bwcBranch;
    private Property<File> checkoutDir;

    @Inject
    public BwcGitExtension(ObjectFactory objectFactory) {
        this.checkoutDir = objectFactory.property(File.class);
    }

import static java.util.Arrays.asList;

public class InternalBwcGitPlugin implements Plugin<Project> {

    private final ProviderFactory providerFactory;
    private final ExecOperations execOperations;

    private BwcGitExtension gitExtension;
    private Project project;

    @Inject
    public InternalBwcGitPlugin(ProviderFactory providerFactory, ExecOperations execOperations) {
        this.providerFactory = providerFactory;

        BwcSetupExtension bwcSetupExtension = project.getExtensions()
            .create("bwcSetup", BwcSetupExtension.class, project, versionInfoProvider, bwcTaskThrottleProvider, checkoutDir);
        BwcGitExtension gitExtension = project.getPlugins().apply(InternalBwcGitPlugin.class).getGitExtension();
        Provider<Version> bwcVersion = versionInfoProvider.map(info -> info.version);