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#!/usr/bin/env python
# Copyright (C) 2009 Sebastian Pipping <sebastian@pipping.org>
# Licensed under GPL 2 or later

import xml.etree.ElementTree as ET
from ConfigParser import ConfigParser
import re

from sharedutils import * # local

OWNER_REGEX = re.compile('^([^<]+) (?:\([^)]+\) )?<([^ ]+@[^ ]+)>$')
NOT_AN_OVERLAY_MESSAGE = 'Skipping %s (not an overlay)'


gitosis_conf = ConfigParser()
gitosis_conf.read('gitosis.conf')

a = ET.parse(open('repositories.xml'))
repositories = a.getroot()
overlays_gentoo_org_dict = dict([[e.attrib['name'], e] for e in repositories])

for section_name in gitosis_conf.sections():
    if section_name.startswith('repo '):
        _repo_base = section_name[len('repo '):].strip()
        if _repo_base.startswith('dev/'):
            repo_name = _repo_base[len('dev/'):].strip()
            owner_type = "person"
        elif _repo_base.startswith('proj/'):
            repo_name = _repo_base[len('proj/'):].strip()
            owner_type = "project"
        else:
            print NOT_AN_OVERLAY_MESSAGE % repo_name
            continue

        if not gitosis_conf.has_option(section_name, 'gentoo-is-overlay') or \
                not gitosis_conf.getboolean(section_name, 'gentoo-is-overlay'):
            print NOT_AN_OVERLAY_MESSAGE % repo_name
            continue

        if repo_name in overlays_gentoo_org_dict:
            print 'Updating %s' % repo_name
            repo = overlays_gentoo_org_dict[repo_name]
            # Keep due to poor descriptions in gitosis.conf atm
            # Assume first <description> is english
            _description = repo.find('description').text

            # Clear
            repo.attrib['status'] = 'official'
            repo[:] = []
        else:
            print 'Adding   %s' % repo_name
            _description = gitosis_conf.get(section_name, 'description')
            repo = ET.Element('repo', name=repo_name, status='official')
            repositories.append(repo)

        homepage = ET.Element('homepage')
        homepage.text = 'http://git.overlays.gentoo.org/gitweb/?p=%s.git;a=summary' % _repo_base

        description = ET.Element('description', lang='en')
        description.text = _description

        _owner = gitosis_conf.get(section_name, 'owner')
        _owner_match = OWNER_REGEX.match(_owner)

        owner = ET.Element('owner', type=owner_type)
        owner_name = ET.Element('name')
        owner_name.text = _owner_match.group(1)
        owner_email = ET.Element('email')
        owner_email.text = _owner_match.group(2)
        owner[:] = [owner_email, owner_name]

        repo[:] = [description, homepage, owner]

        source_uris = (
            'git://git.overlays.gentoo.org/%s.git' % _repo_base,
            'http://git.overlays.gentoo.org/gitroot/%s.git' % _repo_base,
            'git+ssh://git@git.overlays.gentoo.org/%s.git' % _repo_base,
        )
        for uri in source_uris:
            source = ET.Element('source', type='git')
            source.text = uri
            repo.append(source)

        feed_uris = (
            'http://git.overlays.gentoo.org/gitweb/?p=%s.git;a=atom' % _repo_base,
            'http://git.overlays.gentoo.org/gitweb/?p=%s.git;a=rss' % _repo_base,
        )
        for uri in feed_uris:
            feed = ET.Element('feed')
            feed.text = uri
            repo.append(feed)

        recurse_print(repo, 1)

indent(repositories)
a.write('repositories.xml')