/brz/remove-bazaar

# Copyright (C) 2018 Jelmer Vernooij <jelmer@jelmer.uk>

#

# 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 2 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, write to the Free Software

# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA

"""URL Conversion."""

from .. import urlutils

from .refs import (

    ref_to_branch_name,

    )

from dulwich.client import parse_rsync_url

KNOWN_GIT_SCHEMES = ['git+ssh', 'git', 'http', 'https', 'ftp', 'ssh']

SCHEME_REPLACEMENT = {

    'ssh': 'git+ssh',

    }

def git_url_to_bzr_url(location, branch=None, ref=None):

    if branch is not None and ref is not None:

        raise ValueError('only specify one of branch or ref')

    url = urlutils.URL.from_string(location)

    if (url.scheme not in KNOWN_GIT_SCHEMES and

            not url.scheme.startswith('chroot-')):

        try:

            (username, host, path) = parse_rsync_url(location)

        except ValueError:

            return location

        else:

            url = urlutils.URL(

                scheme='git+ssh',

                quoted_user=(urlutils.quote(username) if username else None),

                quoted_password=None,

                quoted_host=urlutils.quote(host),

                port=None,

                quoted_path=urlutils.quote(path, safe="/~"))

        location = str(url)

    elif url.scheme in SCHEME_REPLACEMENT:

        url.scheme = SCHEME_REPLACEMENT[url.scheme]

        location = str(url)

    if ref == b'HEAD':

        ref = branch = None

    if ref:

        try:

            branch = ref_to_branch_name(ref)

        except ValueError:

            branch = None

        else:

            ref = None

    if ref or branch:

        params = {}

        if ref:

            params['ref'] = urlutils.quote_from_bytes(ref, safe='')

        if branch:

            params['branch'] = urlutils.escape(branch, safe='')

        location = urlutils.join_segment_parameters(location, params)

    return location

def bzr_url_to_git_url(location):

    target_url, target_params = urlutils.split_segment_parameters(location)

    branch = target_params.get('branch')

    ref = target_params.get('ref')

    return target_url, branch, ref