private static final class LockingVersionControlRepository implements VersionControlRepositoryConnection {
        private final VersionControlSpec spec;
        private final VersionControlSystem delegate;
        private final PersistentCache cacheAccess;

        private LockingVersionControlRepository(VersionControlSpec spec, VersionControlSystem delegate, PersistentCache cacheAccess) {
            this.spec = spec;

import org.gradle.internal.service.scopes.ServiceScope;
import org.gradle.vcs.VersionControlSpec;

import javax.annotation.Nullable;

@ServiceScope(Scope.BuildTree.class)
public interface VcsResolver {
    /**
     * Returns the VCS to use to search for matches to the given selector, or null if no such VCS.
     */
    @Nullable
    VersionControlSpec locateVcsFor(ModuleComponentSelector selector);

    /**

import org.gradle.vcs.VcsMapping;
import org.gradle.vcs.VersionControlSpec;

import javax.annotation.Nullable;

@ServiceScope(Scope.BuildTree.class)
public interface VcsMappingsStore {
    VcsResolver asResolver();

    void addRule(Action<? super VcsMapping> rule, Gradle gradle);

    VcsResolver NO_OP = new VcsResolver() {
        @Nullable
        @Override
        public VersionControlSpec locateVcsFor(ModuleComponentSelector selector) {