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# vim: set fileencoding=utf-8 : 

# 

# (C) 2012 Guido Günther <agx@sigxcpu.org> 

#    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 

"""Handle checkin and checkout of archives from the pristine-tar branch""" 

 

import os 

import gbp.log 

from gbp.command_wrappers import Command 

 

class PristineTar(Command): 

    """The pristine-tar branch in a git repository""" 

    cmd='/usr/bin/pristine-tar' 

    branch = 'pristine-tar' 

 

    def __init__(self, repo): 

        self.repo = repo 

        super(PristineTar, self).__init__(self.cmd, cwd=repo.path) 

 

    def has_commit(self, archive_regexp): 

        """ 

        Do we have a pristine-tar commit for package I{package} at version 

        {version} with compression type I{comp_type}? 

 

        @param archive_regexp: archive name to look for (regexp wildcards allowed) 

        @type archive_regexp: C{str} 

        """ 

        return True if self.get_commit(archive_regexp) else False 

 

    def get_commit(self, archive_regexp): 

        """ 

        Get the pristine-tar commit of package I{package} in version I{version} 

        and compression type I{comp_type} 

 

        @param archive_regexp: archive name to look for (regexp wildcards allowed) 

        @type archive_regexp: C{str} 

        """ 

        if not self.repo.has_pristine_tar_branch(): 

            return None 

 

        regex = ('pristine-tar .* %s' % archive_regexp) 

        commits = self.repo.grep_log(regex, self.branch) 

        if commits: 

            commit = commits[-1] 

            gbp.log.debug("Found pristine-tar commit at '%s'" % commit) 

            return commit 

        return None 

 

    def checkout(self, archive): 

        """ 

        Checkout an orig archive from pristine-tar branch 

 

        @param archive: the name of the orig archive 

        @type archive: C{str} 

        """ 

        self.run_error = 'Couldn\'t checkout "%s"' % os.path.basename(archive) 

        self.__call__(['checkout', archive]) 

 

    def commit(self, archive, upstream): 

        """ 

        Commit an archive I{archive} to the pristine tar branch using upstream 

        branch ${upstream}. 

 

        @param archive: the archive to commit 

        @type archive: C{str} 

        @param upstream: the upstream branch to diff against 

        @type upstream: C{str} 

        """ 

        ref = 'refs/heads/%s' % upstream 

 

        self.run_error = ("Couldn't commit to '%s' with upstream '%s'" % 

                          (self.branch, upstream)) 

        self.__call__(['commit', archive, upstream])