/**
   * Returns real working copies roots - if there is <Project Root> -> Subversion setting, and there
   * is one working copy, will return one root
   */
  public List<WCInfo> getAllWcInfos() {
    final SvnFileUrlMapping urlMapping = getSvnFileUrlMapping();

    final List<RootUrlInfo> infoList = urlMapping.getAllWcInfos();
    final List<WCInfo> infos = new ArrayList<WCInfo>();
    for (RootUrlInfo info : infoList) {
      final File file = info.getIoFile();
      infos.add(
          new WCInfo(
              file.getAbsolutePath(),
              info.getAbsoluteUrlAsUrl(),
              info.getFormat(),
              info.getRepositoryUrl(),
              SvnUtil.isWorkingCopyRoot(file),
              info.getType(),
              SvnUtil.getDepth(this, file)));
    }
    return infos;
  }
  @Override
  public <S> List<S> filterUniqueRoots(
      final List<S> in, final Convertor<S, VirtualFile> convertor) {
    if (in.size() <= 1) return in;

    final List<MyPair<S>> infos = new ArrayList<MyPair<S>>(in.size());
    final SvnFileUrlMappingImpl mapping = (SvnFileUrlMappingImpl) getSvnFileUrlMapping();
    final List<S> notMatched = new LinkedList<S>();
    for (S s : in) {
      final VirtualFile vf = convertor.convert(s);
      if (vf == null) continue;

      final File ioFile = new File(vf.getPath());
      SVNURL url = mapping.getUrlForFile(ioFile);
      if (url == null) {
        url = SvnUtil.getUrl(this, ioFile);
        if (url == null) {
          notMatched.add(s);
          continue;
        }
      }
      infos.add(new MyPair<S>(vf, url.toString(), s));
    }
    final List<MyPair<S>> filtered = new ArrayList<MyPair<S>>(infos.size());
    ForNestedRootChecker.filterOutSuperfluousChildren(this, infos, filtered);

    final List<S> converted =
        ObjectsConvertor.convert(
            filtered,
            new Convertor<MyPair<S>, S>() {
              @Override
              public S convert(final MyPair<S> o) {
                return o.getSrc();
              }
            });
    if (!notMatched.isEmpty()) {
      // potential bug is here: order is not kept. but seems it only occurs for cases where result
      // is sorted after filtering so ok
      converted.addAll(notMatched);
    }
    return converted;
  }
 @Override
 public boolean isVersionedDirectory(final VirtualFile dir) {
   return SvnUtil.seemsLikeVersionedDir(dir);
 }