# Copyright (C) 2016 Codethink Limited
#
# 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; version 2 of the License.
#
# 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.

# Small library of useful things for the scripts that live here.

import yaml
import subprocess


aliases = {
  'baserock:': 'git://%(trove)s/baserock/',
  'freedesktop:': 'git://anongit.freedesktop.org/',
  'github:': 'git://github.com/',
  'gnome:': 'git://git.gnome.org/',
  'upstream:': 'git://%(trove)s/delta/'
}

def parse_repo_alias(repo, trove_host='git.baserock.org'):
    global aliases
    remote = repo[:repo.find(':') + 1]
    aliases = {k: v % {'trove': trove_host} for k, v in aliases.iteritems()}
    try:
        return repo.replace(remote, aliases[remote])
    except KeyError as e:
        raise Exception("Unknown repo-alias \"%s\"" % repo)

def definitions_root():
    return subprocess.check_output(
        ["git", "rev-parse", "--show-toplevel"]).strip()

def load_yaml_file(yaml_file):
    with open(yaml_file, 'r') as f:
        return yaml.safe_load(f)