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Diffstat (limited to 'gbp/rpm/git.py')
| -rw-r--r-- | gbp/rpm/git.py | 105 |
1 files changed, 105 insertions, 0 deletions
diff --git a/gbp/rpm/git.py b/gbp/rpm/git.py new file mode 100644 index 00000000..c7cc023b --- /dev/null +++ b/gbp/rpm/git.py @@ -0,0 +1,105 @@ +# 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 import compose_version_str + +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=compose_version_str(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\:·: |