# -*- coding: utf-8 -*-

# This program is free software: you can redistribute it and/or modify

# it under the terms of the GNU General Public License as published by

# the Free Software Foundation, either version 3 of the License, or

# (at your option) any later version.

#

# This program is distributed in the hope that it will be useful,

# but WITHOUT ANY WARRANTY; without even the implied warranty of

# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

# GNU General Public License for more details.

#

# You should have received a copy of the GNU General Public License

# along with this program.  If not, see <http://www.gnu.org/licenses/>.

"""

kallithea.lib.utils

~~~~~~~~~~~~~~~~~~~

Utilities library for Kallithea

This file was forked by the Kallithea project in July 2014.

Original author and date, and relevant copyright and licensing information is below:

:created_on: Apr 18, 2010

:author: marcink

:copyright: (c) 2013 RhodeCode GmbH, and others.

:license: GPLv3, see LICENSE.md for more details.

"""

import os

import re

import logging

import datetime

import traceback

import paste

import beaker

import tarfile

import shutil

import decorator

import warnings

from os.path import abspath

from os.path import dirname as dn, join as jn

from paste.script.command import Command, BadCommand

from webhelpers.text import collapse, remove_formatting, strip_tags

from beaker.cache import _cache_decorate

from kallithea.lib.vcs import get_backend

from kallithea.lib.vcs.backends.base import BaseChangeset

from kallithea.lib.vcs.utils.lazy import LazyProperty

from kallithea.lib.vcs.utils.hgcompat import ui, config

from kallithea.lib.vcs.utils.helpers import get_scm

from kallithea.lib.vcs.exceptions import VCSError

from kallithea.lib.caching_query import FromCache

from kallithea.model import meta

from kallithea.model.db import Repository, User, Ui, \

    UserLog, RepoGroup, Setting, CacheInvalidation, UserGroup

from kallithea.model.meta import Session

from kallithea.model.repo_group import RepoGroupModel

from kallithea.lib.utils2 import safe_str, safe_unicode, get_current_authuser

from kallithea.lib.vcs.utils.fakemod import create_module

from kallithea.model.user_group import UserGroupModel

log = logging.getLogger(__name__)

REMOVED_REPO_PAT = re.compile(r'rm__\d{8}_\d{6}_\d{6}__.*')

def recursive_replace(str_, replace=' '):

    """

    Recursive replace of given sign to just one instance

    :param str_: given string

    :param replace: char to find and replace multiple instances

    Examples::

    >>> recursive_replace("Mighty---Mighty-Bo--sstones",'-')

    'Mighty-Mighty-Bo-sstones'

    """

    if str_.find(replace * 2) == -1:

        return str_

    else:

        str_ = str_.replace(replace * 2, replace)

        return recursive_replace(str_, replace)

def repo_name_slug(value):

    """

    Return slug of name of repository

    This function is called on each creation/modification

    of repository to prevent bad names in repo

    """

                'diff', 'email',

                'extensions', 'format',

                'merge-patterns', 'merge-tools',

                'hooks', 'http_proxy',

                'smtp', 'patch',

                'paths', 'profiling',

                'server', 'trusted',

                'ui', 'web', ]

def make_ui(read_from='file', path=None, checkpaths=True, clear_session=True):

    """

    A function that will read python rc files or database

    and make an mercurial ui object from read options

    :param path: path to mercurial config file

    :param checkpaths: check the path

    :param read_from: read from 'file' or 'db'

    """

    baseui = ui.ui()

    # clean the baseui object

    baseui._ocfg = config.config()

    baseui._ucfg = config.config()

    baseui._tcfg = config.config()

    if read_from == 'file':

        if not os.path.isfile(path):

            log.debug('hgrc file is not present at %s, skipping...' % path)

            return False

        log.debug('reading hgrc from %s' % path)

        cfg = config.config()

        cfg.read(path)

        for section in ui_sections:

            for k, v in cfg.items(section):

                log.debug('settings ui from file: [%s] %s=%s' % (section, k, v))

                baseui.setconfig(safe_str(section), safe_str(k), safe_str(v))

    elif read_from == 'db':

        sa = meta.Session()

        ret = sa.query(Ui)\

            .options(FromCache("sql_cache_short", "get_hg_ui_settings"))\

            .all()

        hg_ui = ret

        for ui_ in hg_ui:

            if ui_.ui_active:

                log.debug('settings ui from db: [%s] %s=%s', ui_.ui_section,

                baseui.setconfig(safe_str(ui_.ui_section), safe_str(ui_.ui_key),

            if ui_.ui_key == 'push_ssl':

                # force set push_ssl requirement to False, kallithea

                # handles that

                baseui.setconfig(safe_str(ui_.ui_section), safe_str(ui_.ui_key),

                                 False)

        if clear_session:

            meta.Session.remove()

    return baseui

def set_app_settings(config):

    """

    Updates pylons config with new settings from database

    :param config:

    """

    hgsettings = Setting.get_app_settings()

    for k, v in hgsettings.items():

        config[k] = v

def set_vcs_config(config):

    """

    Patch VCS config with some Kallithea specific stuff

    :param config: kallithea.CONFIG

    """

    import kallithea

    from kallithea.lib.vcs import conf

    from kallithea.lib.utils2 import aslist

    conf.settings.BACKENDS = {

        'hg': 'kallithea.lib.vcs.backends.hg.MercurialRepository',

        'git': 'kallithea.lib.vcs.backends.git.GitRepository',

    }

    conf.settings.GIT_EXECUTABLE_PATH = config.get('git_path', 'git')

    conf.settings.GIT_REV_FILTER = config.get('git_rev_filter', '--all').strip()

    conf.settings.DEFAULT_ENCODINGS = aslist(config.get('default_encoding',

                                                        'utf8'), sep=',')

def map_groups(path):

    """

    Given a full path to a repository, create all nested groups that this

    repo is inside. This function creates parent-child relationships between

    groups and creates default perms for all new groups.