log.exception(e)

        except Exception, e:

            log.exception(e)

            resp = exc.HTTPInternalServerError()

        return resp(environ, start_response)

class GitDirectory(object):

    def __init__(self, repo_root, repo_name, extras):

        repo_location = os.path.join(repo_root, repo_name)

        if not os.path.isdir(repo_location):

            raise OSError(repo_location)

        self.content_path = repo_location

        self.repo_name = repo_name

        self.repo_location = repo_location

        self.extras = extras

    def __call__(self, environ, start_response):

        content_path = self.content_path

        try:

            app = GitRepository(self.repo_name, content_path, self.extras)

        except (AssertionError, OSError):

            else:

                return exc.HTTPNotFound()(environ, start_response)

        return app(environ, start_response)

def make_wsgi_app(repo_name, repo_root, extras):

    return GitDirectory(repo_root, repo_name, extras)