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# vim: set fileencoding=utf-8 :
#
# (C) 2011 Guido Günther <agx@sigxcpu.org>
# (C) 2012 Intel Corporation <markus.lehtonen@linux.intel.com>
# 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
import re
from gbp.git import GitRepository, GitRepositoryError
from gbp.pkg.pristinetar import PristineTar
from gbp.rpm.policy import RpmPkgPolicy
class RpmGitRepository(GitRepository):
"""A git repository that holds the source of an RPM package"""
def __init__(self, path):
super(RpmGitRepository, self).__init__(path)
self.pristine_tar = PristineTar(self)
def find_version(self, format, str_fields):
"""
Check if a certain version is stored in this repo and return the SHA1
of the related commit. That is, an annotated tag is dereferenced to the
commit object it points to.
@param format: tag pattern
@type format: C{str}
@param str_fields: arguments for format string ('upstreamversion', 'release', 'vendor'...)
@type str_fields: C{dict} of C{str}
@return: sha1 of the commit the tag references to
"""
try:
tag = self.version_to_tag(format, str_fields)
except KeyError:
return None
if self.has_tag(tag): # new tags are injective
# dereference to a commit object
return self.rev_parse("%s^0" % tag)
return None
@staticmethod
def version_to_tag(format, str_fields):
"""
Generate a tag from a given format and a version
@param format: tag pattern
@type format: C{str}
@param str_fields: arguments for format string ('upstreamversion', 'release', 'vendor'...)
@type str_fields: C{dict} of C{str}
@return: version tag
>>> RpmGitRepository.version_to_tag("packaging/%(version)s", dict(epoch='0', upstreamversion='0~0'))
'packaging/0%0_0'
>>> RpmGitRepository.version_to_tag("%(vendor)s/v%(version)s", dict(upstreamversion='1.0', release='2', vendor="myvendor"))
'myvendor/v1.0-2'
"""
version_tag = format % dict(str_fields,
version=RpmPkgPolicy.compose_full_version(str_fields))
return RpmGitRepository._sanitize_tag(version_tag)
@staticmethod
def _sanitize_tag(tag):
"""sanitize a version so git accepts it as a tag
>>> RpmGitRepository._sanitize_tag("0.0.0")
'0.0.0'
>>> RpmGitRepository._sanitize_tag("0.0~0")
'0.0_0'
>>> RpmGitRepository._sanitize_tag("0:0.0")
'0%0.0'
>>> RpmGitRepository._sanitize_tag("0%0~0")
'0%0_0'
"""
return tag.replace('~', '_').replace(':', '%')
@property
def pristine_tar_branch(self):
"""
The name of the pristine-tar branch, whether it already exists or
not.
"""
return PristineTar.branch
def has_pristine_tar_branch(self):
"""
Wheter the repo has a I{pristine-tar} branch.
@return: C{True} if the repo has pristine-tar commits already, C{False}
otherwise
@rtype: C{Bool}
"""
return True if self.has_branch(self.pristine_tar_branch) else False
# vim:et:ts=4:sw=4:et:sts=4:ai:set list listchars=tab\:»·,trail\:·:
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