def get_file_content(self, path):

        return u''

    def get_file_size(self, path):

        return 0

def map_groups(groups):

    """

    Checks for groups existence, and creates groups structures.

    It returns last group in structure

    :param groups: list of groups structure

    """

    sa = meta.Session

    parent = None

    group = None

    # last element is repo in nested groups structure

    groups = groups[:-1]

    rgm = ReposGroupModel(sa)

    for lvl, group_name in enumerate(groups):

        group_name = '/'.join(groups[:lvl] + [group_name])

        group = RepoGroup.get_by_group_name(group_name)

        desc = '%s group' % group_name

#        # WTF that doesn't work !?

#        if group is None:

#            group = rgm.create(group_name, desc, parent, just_db=True)

#            sa.commit()

        if group is None:

            group = RepoGroup(group_name, parent)

            group.group_description = desc

            sa.add(group)

            rgm._create_default_perms(group)

            sa.commit()

        parent = group

    return group

def repo2db_mapper(initial_repo_list, remove_obsolete=False):

    """

    maps all repos given in initial_repo_list, non existing repositories

    are created, if remove_obsolete is True it also check for db entries

    that are not in initial_repo_list and removes them.

    :param initial_repo_list: list of repositories found by scanning methods

    :param remove_obsolete: check for obsolete entries in database

    """

    from rhodecode.model.repo import RepoModel

    sa = meta.Session

    rm = RepoModel()

    user = sa.query(User).filter(User.admin == True).first()

    if user is None:

        raise Exception('Missing administrative account !')