.. _overview:

=====================

Installation overview

=====================

Some overview and some details that can help understanding the options when

installing Kallithea.

1. **Prepare environment and external dependencies.**

    Kallithea needs:

    * A filesystem where the Mercurial and Git repositories can be stored.

    * A database where meta data can be stored.

    * A Python environment where the Kallithea application and its dependencies

      can be installed.

    * A web server that can host the Kallithea web application using the WSGI

      API.

2. **Install Kallithea software.**

    This makes the ``kallithea-cli`` command line tool available.

3. **Create low level configuration file.**

    Use ``kallithea-cli config-create`` to create a ``.ini`` file with database

    connection info, mail server information, some web server configuration,

    etc.

4. **Populate the database.**

    Use ``kallithea-cli db-create`` with the ``.ini`` file to create the

    database schema and insert the most basic information: the location of the

    repository store and an initial local admin user.

5. **Configure the web server.**

    The web server must invoke the WSGI entrypoint for the Kallithea software

    using the ``.ini`` file (and thus the database). This makes the web

    application available so the local admin user can log in and tweak the

    configuration further.

6. **Configure users.**

    The initial admin user can create additional local users, or configure how

    users can be created and authenticated from other user directories.

See the subsequent sections, the separate OS-specific instructions, and

:ref:`setup` for details on these steps.

Python environment

------------------

**Kallithea** is written entirely in Python_ and requires Python version

3.6 or higher.

Given a Python installation, there are different ways of providing the

environment for running Python applications. Each of them pretty much

corresponds to a ``site-packages`` directory somewhere where packages can be

installed.

Kallithea itself can be run from source or be installed, but even when running

from source, there are some dependencies that must be installed in the Python

environment used for running Kallithea.

- Packages *could* be installed in Python's ``site-packages`` directory ... but

  that would require running pip_ as root and it would be hard to uninstall or

  upgrade and is probably not a good idea unless using a package manager.

- Packages could also be installed in ``~/.local`` ... but that is probably

  only a good idea if using a dedicated user per application or instance.

- Finally, it can be installed in a virtualenv. That is a very lightweight

  "container" where each Kallithea instance can get its own dedicated and

  self-contained virtual environment.

We recommend using virtualenv for installing Kallithea.

Locale environment

------------------

In order to ensure a correct functioning of Kallithea with respect to non-ASCII

characters in user names, file paths, commit messages, etc., it is very

important that Kallithea is run with a correct `locale` configuration.

On Unix, environment variables like ``LANG`` or ``LC_ALL`` can specify a language (like

``en_US``) and encoding (like ``UTF-8``) to use for code points outside the ASCII

range. The flexibility of supporting multiple encodings of Unicode has the flip

side of having to specify which encoding to use - especially for Mercurial.

It depends on the OS distribution and system configuration which locales are

available. For example, some Docker containers based on Debian default to only

supporting the ``C`` language, while other Linux environments have ``en_US`` but not

``C``. The ``locale -a`` command will show which values are available on the

current system. Regardless of the actual language, you should normally choose a

locale that has the ``UTF-8`` encoding (note that spellings ``utf8``, ``utf-8``,

``UTF8``, ``UTF-8`` are all referring to the same thing)

For technical reasons, the locale configuration **must** be provided in the

environment in which Kallithea runs - it cannot be specified in the ``.ini`` file.

How to practically do this depends on the web server that is used and the way it

is started. For example, gearbox is often started by a normal user, either

manually or via a script. In this case, the required locale environment

variables can be provided directly in that user's environment or in the script.

However, web servers like Apache are often started at boot via an init script or

service file. Modifying the environment for this case would thus require

root/administrator privileges. Moreover, that environment would dictate the

settings for all web services running under that web server, Kallithea being

just one of them. Specifically in the case of Apache with ``mod_wsgi``, the

locale can be set for a specific service in its ``WSGIDaemonProcess`` directive,

using the ``lang`` parameter.

Installation methods

--------------------

Kallithea must be installed on a server. Kallithea is installed in a Python

environment so it can use packages that are installed there and make itself

available for other packages.

Two different cases will pretty much cover the options for how it can be

installed.

- The Kallithea source repository can be cloned and used -- it is kept stable and

  can be used in production. The Kallithea maintainers use the development

  branch in production. The advantage of installation from source and regularly

  updating it is that you take advantage of the most recent improvements. Using

  it directly from a DVCS also means that it is easy to track local customizations.

  Running ``pip install -e .`` in the source will use pip to install the

  necessary dependencies in the Python environment and create a

  ``.../site-packages/Kallithea.egg-link`` file there that points at the Kallithea

  source.

- Kallithea can also be installed from ready-made packages using a package manager.

  The official released versions are available on PyPI_ and can be downloaded and

  installed with all dependencies using ``pip install kallithea``.

  With this method, Kallithea is installed in the Python environment as any

  other package, usually as a ``.../site-packages/Kallithea-X-py3.8.egg/``

  directory with Python files and everything else that is needed.

  (``pip install kallithea`` from a source tree will do pretty much the same

  but build the Kallithea package itself locally instead of downloading it.)

.. note::

   Kallithea includes front-end code that needs to be processed first.

   The tool npm_ is used to download external dependencies and orchestrate the

   processing. The ``npm`` binary must thus be available.

Web server

----------

Kallithea is (primarily) a WSGI_ application that must be run from a web

server that serves WSGI applications over HTTP.

Kallithea itself is not serving HTTP (or HTTPS); that is the web server's

responsibility. Kallithea does however need to know its own user facing URL

(protocol, address, port and path) for each HTTP request. Kallithea will

usually use its own HTML/cookie based authentication but can also be configured

to use web server authentication.

There are several web server options:

- Kallithea uses the Gearbox_ tool as command line interface. Gearbox provides

  ``gearbox serve`` as a convenient way to launch a Python WSGI / web server

  from the command line. That is perfect for development and evaluation.

  Actual use in production might have different requirements and need extra

  work to make it manageable as a scalable system service.

  Gearbox comes with its own built-in web server but Kallithea defaults to use

  Waitress_. Gunicorn_ is also an option. These web servers have different

  limited feature sets.

  The web server used by ``gearbox`` is configured in the ``.ini`` file passed

  to it. The entry point for the WSGI application is configured

- `Apache httpd`_ can serve WSGI applications directly using mod_wsgi_ and a

  simple Python file with the necessary configuration. This is a good option if

  Apache is an option.

- uWSGI_ is also a full web server with built-in WSGI module.

- IIS_ can also server WSGI applications directly using isapi-wsgi_.

- A `reverse HTTP proxy <https://en.wikipedia.org/wiki/Reverse_proxy>`_

  can be put in front of another web server which has WSGI support.

  Such a layered setup can be complex but might in some cases be the right

  option, for example to standardize on one internet-facing web server, to add

  encryption or special authentication or for other security reasons, to

  provide caching of static files, or to provide load balancing or fail-over.

  Nginx_, Varnish_ and HAProxy_ are often used for this purpose, often in front

  of a ``gearbox serve`` that somehow is wrapped as a service.

The best option depends on what you are familiar with and the requirements for

performance and stability. Also, keep in mind that Kallithea mainly is serving

dynamically generated pages from a relatively slow Python process. Kallithea is

also often used inside organizations with a limited amount of users and thus no

continuous hammering from the internet.

.. _Python: http://www.python.org/

.. _Gunicorn: http://gunicorn.org/

.. _Waitress: http://waitress.readthedocs.org/en/latest/

.. _Gearbox: http://turbogears.readthedocs.io/en/latest/turbogears/gearbox.html

.. _PyPI: https://pypi.python.org/pypi

.. _Apache httpd: http://httpd.apache.org/

.. _mod_wsgi: https://code.google.com/p/modwsgi/

.. _isapi-wsgi: https://github.com/hexdump42/isapi-wsgi

.. _uWSGI: https://uwsgi-docs.readthedocs.org/en/latest/

.. _nginx: http://nginx.org/en/

.. _iis: http://en.wikipedia.org/wiki/Internet_Information_Services

.. _pip: http://en.wikipedia.org/wiki/Pip_%28package_manager%29

.. _WSGI: http://en.wikipedia.org/wiki/Web_Server_Gateway_Interface

.. _HAProxy: http://www.haproxy.org/

.. _Varnish: https://www.varnish-cache.org/

.. _npm: https://www.npmjs.com/

# -*- 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/>.

import configparser

import functools

import logging.config

import os

import re

import sys

import click

import paste.deploy

import kallithea

# kallithea_cli is usually invoked through the 'kallithea-cli' wrapper script

# that is installed by setuptools, as specified in setup.py console_scripts

# entry_points. The script will be using the right virtualenv (if any), and for

# Unix, it will contain #! pointing at the right python executable. The script

# also makes sure sys.argv[0] points back at the script path, and that is what

# can be used to invoke 'kallithea-cli' later.

kallithea_cli_path = sys.argv[0]

def read_config(ini_file_name, strip_section_prefix):

    """Read ini_file_name content, and for all sections like '[X:Y]' where X is

    strip_section_prefix, replace the section name with '[Y]'."""

    def repl(m):

        if m.group(1) == strip_section_prefix:

            return '[%s]' % m.group(2)

        return m.group(0)

    with open(ini_file_name) as f:

        return re.sub(r'^\[([^:]+):(.*)]', repl, f.read(), flags=re.MULTILINE)

# This placeholder is the main entry point for the kallithea-cli command

@click.group(context_settings=dict(help_option_names=['-h', '--help']))

def cli():

    """Various commands to manage a Kallithea instance."""

def register_command(config_file=False, config_file_initialize_app=False, hidden=False):

    """Register a kallithea-cli subcommand.

    If one of the config_file flags are true, a config file must be specified

    with -c and it is read and logging is configured. The configuration is

    available in the kallithea.CONFIG dict.

    If config_file_initialize_app is true, Kallithea, TurboGears global state

    (including tg.config), and database access will also be fully initialized.

    """

    cli_command = cli.command(hidden=hidden)

    if config_file or config_file_initialize_app:

        def annotator(annotated):

            @click.option('--config_file', '-c', help="Path to .ini file with app configuration.",

                type=click.Path(dir_okay=False, exists=True, readable=True), required=True)

            @functools.wraps(annotated) # reuse meta data from the wrapped function so click can see other options

            def runtime_wrapper(config_file, *args, **kwargs):

                path_to_ini_file = os.path.realpath(config_file)

                kallithea.CONFIG = paste.deploy.appconfig('config:' + path_to_ini_file)

                cp = configparser.ConfigParser(strict=False)

                cp.read_string(read_config(path_to_ini_file, strip_section_prefix=annotated.__name__))

                logging.config.fileConfig(cp,

                    {'__file__': path_to_ini_file, 'here': os.path.dirname(path_to_ini_file)})

                if config_file_initialize_app:

                return annotated(*args, **kwargs)

            return cli_command(runtime_wrapper)

        return annotator

    return cli_command

# -*- 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/>.

import click

import kallithea

import kallithea.bin.kallithea_cli_base as cli_base

from kallithea.lib.db_manage import DbManage

from kallithea.model.meta import Session

@cli_base.register_command(config_file=True)

@click.option('--user', help='Username of administrator account.')

@click.option('--password', help='Password for administrator account.')

@click.option('--email', help='Email address of administrator account.')

@click.option('--repos', help='Absolute path to repositories location.')

@click.option('--force-yes', is_flag=True, help='Answer yes to every question.')

@click.option('--force-no', is_flag=True, help='Answer no to every question.')

@click.option('--public-access/--no-public-access', default=True,

        help='Enable/disable public access on this installation (default: enable)')

def db_create(user, password, email, repos, force_yes, force_no, public_access):

    """Initialize the database.

    Create all required tables in the database specified in the configuration

    file. Create the administrator account. Set certain settings based on

    values you provide.

    You can pass the answers to all questions as options to this command.

    """

    dbconf = kallithea.CONFIG['sqlalchemy.url']

    # force_ask should be True (yes), False (no), or None (ask)

    if force_yes:

        force_ask = True

    elif force_no:

        force_ask = False

    else:

        force_ask = None

    cli_args = dict(

            username=user,

            password=password,

            email=email,

            repos_location=repos,

            force_ask=force_ask,

            public_access=public_access,

    )

    dbmanage = DbManage(dbconf=dbconf, root=kallithea.CONFIG['here'],

                        tests=False, cli_args=cli_args)

    dbmanage.create_tables(override=True)

    repo_root_path = dbmanage.prompt_repo_root_path(None)

    dbmanage.create_settings(repo_root_path)

    dbmanage.create_default_user()

    dbmanage.admin_prompt()

    dbmanage.create_permissions()

    dbmanage.populate_default_permissions()

    Session().commit()

    # initial repository scan

            kallithea.CONFIG.global_conf, **kallithea.CONFIG.local_conf)

    added, _ = kallithea.lib.utils.repo2db_mapper(kallithea.model.scm.ScmModel().repo_scan())

    if added:

        click.echo('Initial repository scan: added following repositories:')

        click.echo('\t%s' % '\n\t'.join(added))

    else:

        click.echo('Initial repository scan: no repositories found.')

    click.echo('Database set up successfully.')

    click.echo("Don't forget to build the front-end using 'kallithea-cli front-end-build'.")

# -*- 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.hooks

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

Hooks run by 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: Aug 6, 2010

:author: marcink

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

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

"""

import os

import sys

import time

import mercurial.scmutil

from kallithea.lib import helpers as h

from kallithea.lib.exceptions import UserCreationError

from kallithea.lib.utils import action_logger, make_ui

from kallithea.lib.utils2 import HookEnvironmentError, ascii_str, get_hook_environment, safe_bytes, safe_str

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

from kallithea.model.db import Repository, User

def _get_scm_size(alias, root_path):

    if not alias.startswith('.'):

        alias += '.'

    size_scm, size_root = 0, 0

    for path, dirs, files in os.walk(root_path):

        if path.find(alias) != -1:

            for f in files:

                try:

                    size_scm += os.path.getsize(os.path.join(path, f))

                except OSError:

                    pass

        else:

            for f in files:

                try:

                    size_root += os.path.getsize(os.path.join(path, f))

                except OSError:

                    pass

    size_scm_f = h.format_byte_size(size_scm)

    size_root_f = h.format_byte_size(size_root)

    size_total_f = h.format_byte_size(size_root + size_scm)

    return size_scm_f, size_root_f, size_total_f

def repo_size(ui, repo, hooktype=None, **kwargs):

    """Show size of Mercurial repository.

    Called as Mercurial hook changegroup.repo_size after push.

    """

    size_hg_f, size_root_f, size_total_f = _get_scm_size('.hg', safe_str(repo.root))

    last_cs = repo[len(repo) - 1]

    msg = ('Repository size .hg: %s Checkout: %s Total: %s\n'

           'Last revision is now r%s:%s\n') % (

        size_hg_f, size_root_f, size_total_f, last_cs.rev(), ascii_str(last_cs.hex())[:12]

    )

    ui.status(safe_bytes(msg))

def log_pull_action(ui, repo, **kwargs):

    """Logs user last pull action

    Called as Mercurial hook outgoing.pull_logger or from Kallithea before invoking Git.

    Does *not* use the action from the hook environment but is always 'pull'.

    """

    ex = get_hook_environment()

    user = User.get_by_username(ex.username)

    action = 'pull'

    action_logger(user, action, ex.repository, ex.ip, commit=True)

    # extension hook call

    from kallithea import EXTENSIONS

    callback = getattr(EXTENSIONS, 'PULL_HOOK', None)

    if callable(callback):

        kw = {}

        kw.update(ex)

        callback(**kw)

    return 0

def log_push_action(ui, repo, node, node_last, **kwargs):

    """

    Register that changes have been added to the repo - log the action *and* invalidate caches.

    Note: This hook is not only logging, but also the side effect invalidating

    caches! The function should perhaps be renamed.

    Called as Mercurial hook changegroup.kallithea_log_push_action .

    The pushed changesets is given by the revset 'node:node_last'.

    """

    revs = [ascii_str(repo[r].hex()) for r in mercurial.scmutil.revrange(repo, [b'%s:%s' % (node, node_last)])]

    process_pushed_raw_ids(revs)

    return 0

def process_pushed_raw_ids(revs):

    """

    Register that changes have been added to the repo - log the action *and* invalidate caches.

    Called from Mercurial changegroup.kallithea_log_push_action calling hook log_push_action,

    or from the Git post-receive hook calling handle_git_post_receive ...

    or from scm _handle_push.

    """

    ex = get_hook_environment()

    action = '%s:%s' % (ex.action, ','.join(revs))

    action_logger(ex.username, action, ex.repository, ex.ip, commit=True)

    from kallithea.model.scm import ScmModel

    ScmModel().mark_for_invalidation(ex.repository)

    # extension hook call

    from kallithea import EXTENSIONS

    callback = getattr(EXTENSIONS, 'PUSH_HOOK', None)

    if callable(callback):

        kw = {'pushed_revs': revs}

        kw.update(ex)

        callback(**kw)

def log_create_repository(repository_dict, created_by, **kwargs):

    """

    Post create repository Hook.

    :param repository: dict dump of repository object

    :param created_by: username who created repository

    available keys of repository_dict:

     'repo_type',

     'description',

     'private',

     'created_on',

     'enable_downloads',

     'repo_id',

     'owner_id',

     'enable_statistics',

     'clone_uri',

     'fork_id',

     'group_id',

     'repo_name'

    """

    from kallithea import EXTENSIONS

    callback = getattr(EXTENSIONS, 'CREATE_REPO_HOOK', None)

    if callable(callback):

        kw = {}

        kw.update(repository_dict)

        kw.update({'created_by': created_by})

        kw.update(kwargs)

        return callback(**kw)

    return 0

def check_allowed_create_user(user_dict, created_by, **kwargs):

    # pre create hooks

    from kallithea import EXTENSIONS

    callback = getattr(EXTENSIONS, 'PRE_CREATE_USER_HOOK', None)

    if callable(callback):

        allowed, reason = callback(created_by=created_by, **user_dict)

        if not allowed:

            raise UserCreationError(reason)

def log_create_user(user_dict, created_by, **kwargs):

    """

    Post create user Hook.

    :param user_dict: dict dump of user object

    available keys for user_dict:

     'username',

     'full_name_or_username',

     'full_contact',

     'user_id',

     'name',

     'firstname',

     'short_contact',

     'admin',

     'lastname',

     'ip_addresses',

     'ldap_dn',

     'email',

     'api_key',

     'last_login',

     'full_name',

     'active',

     'password',

     'emails',

    """

    from kallithea import EXTENSIONS

    callback = getattr(EXTENSIONS, 'CREATE_USER_HOOK', None)

    if callable(callback):

        return callback(created_by=created_by, **user_dict)

    return 0

def log_delete_repository(repository_dict, deleted_by, **kwargs):

    """

    Post delete repository Hook.

    :param repository: dict dump of repository object

    :param deleted_by: username who deleted the repository

    available keys of repository_dict:

     'repo_type',

     'description',

     'private',

     'created_on',

     'enable_downloads',

     'repo_id',

     'owner_id',

     'enable_statistics',

     'clone_uri',

     'fork_id',

     'group_id',

     'repo_name'

    """

    from kallithea import EXTENSIONS

    callback = getattr(EXTENSIONS, 'DELETE_REPO_HOOK', None)

    if callable(callback):

        kw = {}

        kw.update(repository_dict)

        kw.update({'deleted_by': deleted_by,

                   'deleted_on': time.time()})

        kw.update(kwargs)

        return callback(**kw)

    return 0

def log_delete_user(user_dict, deleted_by, **kwargs):

    """

    Post delete user Hook.

    :param user_dict: dict dump of user object

    available keys for user_dict:

     'username',

     'full_name_or_username',

     'full_contact',

     'user_id',

     'name',

     'firstname',

     'short_contact',

     'admin',

     'lastname',

     'ip_addresses',

     'ldap_dn',

     'email',

     'api_key',

     'last_login',

     'full_name',

     'active',

     'password',

     'emails',

    """

    from kallithea import EXTENSIONS

    callback = getattr(EXTENSIONS, 'DELETE_USER_HOOK', None)

    if callable(callback):

        return callback(deleted_by=deleted_by, **user_dict)

    return 0

def _hook_environment(repo_path):

    """

    Create a light-weight environment for stand-alone scripts and return an UI and the

    db repository.

    Git hooks are executed as subprocess of Git while Kallithea is waiting, and

    they thus need enough info to be able to create an app environment and

    connect to the database.

    """

    import paste.deploy

    extras = get_hook_environment()

    path_to_ini_file = extras['config']

    kallithea.CONFIG = paste.deploy.appconfig('config:' + path_to_ini_file)

    #logging.config.fileConfig(ini_file_path) # Note: we are in a different process - don't use configured logging

    # fix if it's not a bare repo

    if repo_path.endswith(os.sep + '.git'):

        repo_path = repo_path[:-5]

    repo = Repository.get_by_full_path(repo_path)

    if not repo:

        raise OSError('Repository %s not found in database' % repo_path)

    baseui = make_ui()

    return baseui, repo

def handle_git_pre_receive(repo_path, git_stdin_lines):

    """Called from Git pre-receive hook"""

    # Currently unused. TODO: remove?

    return 0

def handle_git_post_receive(repo_path, git_stdin_lines):

    """Called from Git post-receive hook"""

    try:

        baseui, repo = _hook_environment(repo_path)

    except HookEnvironmentError as e:

        sys.stderr.write("Skipping Kallithea Git post-recieve hook %r.\nGit was apparently not invoked by Kallithea: %s\n" % (sys.argv[0], e))

        return 0

    # the post push hook should never use the cached instance

    scm_repo = repo.scm_instance_no_cache()

    rev_data = []

    for l in git_stdin_lines:

        old_rev, new_rev, ref = l.strip().split(' ')

        _ref_data = ref.split('/')

        if _ref_data[1] in ['tags', 'heads']:

            rev_data.append({'old_rev': old_rev,

                             'new_rev': new_rev,

                             'ref': ref,

                             'type': _ref_data[1],

                             'name': '/'.join(_ref_data[2:])})

    git_revs = []

    for push_ref in rev_data:

        _type = push_ref['type']

        if _type == 'heads':

            if push_ref['old_rev'] == EmptyChangeset().raw_id:

                # update the symbolic ref if we push new repo

                if scm_repo.is_empty():

                    scm_repo._repo.refs.set_symbolic_ref(

                        b'HEAD',

                        b'refs/heads/%s' % safe_bytes(push_ref['name']))

                # build exclude list without the ref

                cmd = ['for-each-ref', '--format=%(refname)', 'refs/heads/*']

                stdout = scm_repo.run_git_command(cmd)

                ref = push_ref['ref']

                heads = [head for head in stdout.splitlines() if head != ref]

                # now list the git revs while excluding from the list

                cmd = ['log', push_ref['new_rev'], '--reverse', '--pretty=format:%H']

                cmd.append('--not')

                cmd.extend(heads) # empty list is ok

                stdout = scm_repo.run_git_command(cmd)

                git_revs += stdout.splitlines()

            elif push_ref['new_rev'] == EmptyChangeset().raw_id:

                # delete branch case

                git_revs += ['delete_branch=>%s' % push_ref['name']]

            else:

                cmd = ['log', '%(old_rev)s..%(new_rev)s' % push_ref,

                       '--reverse', '--pretty=format:%H']

                stdout = scm_repo.run_git_command(cmd)

                git_revs += stdout.splitlines()

        elif _type == 'tags':

            git_revs += ['tag=>%s' % push_ref['name']]

    process_pushed_raw_ids(git_revs)

    return 0

# Almost exactly like Mercurial contrib/hg-ssh:

def rejectpush(ui, **kwargs):

    """Mercurial hook to be installed as pretxnopen and prepushkey for read-only repos"""

    ex = get_hook_environment()

    ui.warn(safe_bytes("Push access to %r denied\n" % ex.repository))

    return 1

#!/usr/bin/env python3

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

import os

import platform

import sys

import setuptools

# monkey patch setuptools to use distutils owner/group functionality

from setuptools.command import sdist

if sys.version_info < (3, 6):

    raise Exception('Kallithea requires Python 3.6 or later')

here = os.path.abspath(os.path.dirname(__file__))

def _get_meta_var(name, data, callback_handler=None):

    import re

    matches = re.compile(r'(?:%s)\s*=\s*(.*)' % name).search(data)

    if matches:

        s = eval(matches.groups()[0])

        if callable(callback_handler):

            return callback_handler(s)

        return s

_meta = open(os.path.join(here, 'kallithea', '__init__.py'), 'r')

_metadata = _meta.read()

_meta.close()

def callback(V):

    return '.'.join(map(str, V[:3])) + '.'.join(V[3:])

__version__ = _get_meta_var('VERSION', _metadata, callback)

__license__ = _get_meta_var('__license__', _metadata)

__author__ = _get_meta_var('__author__', _metadata)

__url__ = _get_meta_var('__url__', _metadata)

# defines current platform

__platform__ = platform.system()

is_windows = __platform__ in ['Windows']

requirements = [

    "alembic >= 1.0.10, < 1.5",

    "gearbox >= 0.1.0, < 1",

    "waitress >= 0.8.8, < 1.5",

    "WebOb >= 1.8, < 1.9",

    "backlash >= 0.1.2, < 1",

    "TurboGears2 >= 2.4, < 2.5",

    "tgext.routes >= 0.2.0, < 1",

    "Beaker >= 1.10.1, < 2",

    "WebHelpers2 >= 2.0, < 2.1",

    "FormEncode >= 1.3.1, < 1.4",

    "SQLAlchemy >= 1.2.9, < 1.4",

    "Mako >= 0.9.1, < 1.2",

    "Pygments >= 2.2.0, < 2.6",

    "Whoosh >= 2.7.1, < 2.8",

    "celery >= 4.3, < 4.5, != 4.4.4", # 4.4.4 is broken due to unexpressed dependency on 'future', see https://github.com/celery/celery/pull/6146

    "Babel >= 1.3, < 2.9",

    "python-dateutil >= 2.1.0, < 2.9",

    "Markdown >= 2.2.1, < 3.2",

    "docutils >= 0.11, < 0.17",

    "URLObject >= 2.3.4, < 2.5",

    "Routes >= 2.0, < 2.5",

    "dulwich >= 0.19.0, < 0.20",

    "mercurial >= 5.2, < 5.5",