private void addSubmoduleUsernames()

in git-agent/src/main/java/jetbrains/buildServer/buildTriggers/vcs/git/agent/UpdaterImpl.java [413:476]
57 lines of code
15 McCabe index (conditional complexity)

  private void addSubmoduleUsernames(@NotNull File repositoryDir, @NotNull Config gitModules)
    throws IOException, VcsException {
    if (!myPluginConfig.isUseMainRepoUserForSubmodules())
      return;

    Loggers.VCS.info("Update submodules credentials");

    AuthSettings auth = myRoot.getAuthSettings();
    final String userName = auth.getUserName();
    if (userName == null) {
      Loggers.VCS.info("Username is not specified in the main VCS root settings, skip updating submodule credentials");
      return;
    }

    Repository r = null;
    try {
      r = newRepositoryBuilder().setBare().setGitDir(getGitDir(repositoryDir)).build();
      StoredConfig gitConfig = r.getConfig();

      Set<String> submodules = gitModules.getSubsections("submodule");
      if (submodules.isEmpty()) {
        Loggers.VCS.info("No submodule sections found in " + new File(repositoryDir, ".gitmodules").getCanonicalPath()
                         + ", skip updating credentials");
        return;
      }
      File modulesDir = getModulesDir(r.getDirectory());
      for (String submoduleName : submodules) {
        //The 'git submodule sync' command executed before resolves relative submodule urls
        //from .gitmodules and writes them into .git/config. We should use resolved urls in
        //order to add parent repository username to submodules with relative urls.
        String url = gitConfig.getString("submodule", submoduleName, "url");
        if (url == null) {
          Loggers.VCS.info(".git/config doesn't contain an url for submodule '" + submoduleName + "', use url from .gitmodules");
          url = gitModules.getString("submodule", submoduleName, "url");
        }
        Loggers.VCS.info("Update credentials for submodule with url " + url);
        if (url == null || !isRequireAuth(url)) {
          Loggers.VCS.info("Url " + url + " does not require authentication, skip updating credentials");
          continue;
        }
        try {
          URIish uri = new URIish(url);
          String updatedUrl = uri.setUser(userName).toASCIIString();
          gitConfig.setString("submodule", submoduleName, "url", updatedUrl);
          String submodulePath = gitModules.getString("submodule", submoduleName, "path");
          if (submodulePath != null && myPluginConfig.isUpdateSubmoduleOriginUrl()) {
            File submoduleDir = new File(modulesDir, submodulePath);
            if (submoduleDir.isDirectory() && new File(submoduleDir, Constants.CONFIG).isFile())
              updateOriginUrl(submoduleDir, updatedUrl);
          }
          Loggers.VCS.debug("Submodule url " + url + " changed to " + updatedUrl);
        } catch (URISyntaxException e) {
          Loggers.VCS.warn("Error while parsing an url " + url + ", skip updating submodule credentials", e);
        } catch (Exception e) {
          Loggers.VCS.warn("Error while updating the '" + submoduleName + "' submodule url", e);
        }
      }
      gitConfig.save();
    } finally {
      if (r != null) {
        r.close();
      }
    }
  }