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# directory.py -- Directory service that uses Debian Vcs-* fields
# Copyright (C) 2008 Jelmer Vernooij <jelmer@samba.org>
#
# This file is part of bzr-builddeb.
#
# bzr-builddeb 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.
#
# bzr-builddeb 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 bzr-builddeb; if not, write to the Free Software
# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
#
from __future__ import absolute_import
from ... import urlutils
from ...directory_service import directories
from ...sixish import PY3
from ...trace import note
import apt_pkg
from debian.deb822 import Deb822
from debian.changelog import Version
def vcs_git_url_to_bzr_url(url):
"""Convert a Vcs-Git string to a Breezy URL."""
# TODO(jelmer): some packages seem to use [PATH] behind the URL to
# indicate a subdirectory inside of the versioned tree.
# (this is not documented in policy)
from breezy.git.urls import git_url_to_bzr_url
if ' -b ' in url:
(url, branch) = url.split(' -b ', 1)
else:
branch = None
url = git_url_to_bzr_url(url)
if branch:
branch = urlutils.quote(branch, '')
if not PY3:
branch = branch.encode('utf-8')
url = urlutils.join_segment_parameters(
url, {'branch': branch})
return url
def vcs_bzr_url_to_bzr_url(url):
return directories.dereference(url)
def vcs_darcs_url_to_bzr_url(url):
return url
def vcs_hg_url_to_bzr_url(url):
return url
def vcs_svn_url_to_bzr_url(url):
return url
vcs_field_to_bzr_url_converters = [
("Bzr", vcs_bzr_url_to_bzr_url),
("Darcs", vcs_darcs_url_to_bzr_url),
("Svn", vcs_svn_url_to_bzr_url),
("Git", vcs_git_url_to_bzr_url),
("Hg", vcs_hg_url_to_bzr_url)
]
def source_package_vcs_url(control):
"""Extract a Breezy-compatible URL from a source package.
"""
for vcs, converter in vcs_field_to_bzr_url_converters:
for prefix in ("Vcs-", "X-Vcs-", "XS-Vcs-"):
try:
vcs_url = control[prefix + vcs]
except KeyError:
pass
else:
return converter(vcs_url)
else:
raise KeyError
class VcsDirectory(object):
"""Simple Bazaar directory service which uses dpkg Vcs-* fields."""
def look_up(self, name, url):
if "/" in name:
(name, version) = name.split("/", 1)
else:
version = None
apt_pkg.init()
sources = apt_pkg.SourceRecords()
by_version = {}
while sources.lookup(name):
by_version[sources.version] = sources.record
if len(by_version) == 0:
raise urlutils.InvalidURL(path=url, extra='package not found')
if version is None:
# Try the latest version
version = sorted(by_version, key=Version)[-1]
if not version in by_version:
raise urlutils.InvalidURL(path=url,
extra='version %s not found' % version)
control = Deb822(by_version[version])
try:
url = source_package_vcs_url(control)
except KeyError:
note("Retrieving Vcs locating from %s Debian version %s", name, version)
raise urlutils.InvalidURL(path=url, extra='no VCS URL found')
note("Resolved package URL from Debian package %s/%s: %s", name, version, url)
return url
class DgitDirectory(object):
"""Directory that looks up the URL according to a Dgit control field."""
def look_up(self, name, url):
if "/" in name:
(name, version) = name.split("/", 1)
else:
version = None
apt_pkg.init()
sources = apt_pkg.SourceRecords()
urls = {}
while sources.lookup(name):
control = Deb822(sources.record)
pkg_version = control["Version"]
try:
urls[pkg_version] = control["Dgit"].split(' ')
except KeyError:
pass
if len(urls) == 0:
raise urlutils.InvalidURL(path=url, extra='no URLs found')
if version is None:
# Try the latest version
version = sorted(urls, key=Version)[-1]
if not version in urls:
raise urlutils.InvalidURL(path=url,
extra='version %s not found' % version)
if len(urls[version]) < 3:
raise urlutils.InvalidURL(
path=url,
extra='dgit header does not have location information')
url = urlutils.join_segment_parameters(
urls[version][3],
{"tag": urlutils.quote(urls[version][2], '')})
note("Resolved package URL from Debian package %s/%s: %s",
name, version, url)
return url
def upstream_branch_alias(b):
from .util import debuild_config
with b.lock_read():
tree = b.basis_tree()
config = debuild_config(tree, False)
return directories.dereference(config.upstream_branch)
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