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#!/usr/bin/python -u
# vim: set fileencoding=utf-8 :
#
# (C) 2008 Guido Guenther <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
"""Import multiple dsc files in one go"""

import sys
import re
import os
import tempfile
import glob
import pipes
import gbp.deb_utils
import gbp.command_wrappers as gbpc
from gbp.deb_utils import parse_dsc, DscFile
from gbp.config import GbpOptionParser
from gbp.errors import GbpError
from gbp.git_utils import GitRepository, GitRepositoryError

class DpkgCompareVersions(gbpc.Command):
    cmd='/usr/bin/dpkg'

    def __init__(self):
        if not os.access(self.cmd, os.X_OK):
            raise GbpError, "%s not found - cannot use compare versions" % self.cmd
        gbpc.Command.__init__(self, self.cmd, ['--compare-versions'])

    def __call__(self, version1, version2):
        self.run_error = "Couldn't compare %s with %s" % (version1, version2)
        res = gbpc.Command.call(self, [ version1, 'lt', version2 ])
        if res not in [ 0, 1 ]:
            raise gbpc.CommandExecFailed, "%s: bad return code %d" % (self.run_error, res)
        if res == 0:
            return -1
        elif res == 1:
            res = gbpc.Command.call(self, [ version1, 'gt', version2 ])
            if res not in [ 0, 1 ]:
                raise gbpc.CommandExecFailed, "%s: bad return code %d" % (self.run_error, res)
            if res == 0:
                return 1
        return 0


class DscCompareVersions(DpkgCompareVersions):
    def __init__(self):
        DpkgCompareVersions.__init__(self)

    def __call__(self, dsc1, dsc2):
        return DpkgCompareVersions.__call__(self, dsc1.version, dsc2.version)


class GitImportDsc(gbpc.Command):
    cmd='/usr/bin/git-import-dsc'
    def __init__(self, args):
        if not os.access(self.cmd, os.X_OK):
            raise GbpError, "%s not found - can't import packages" % self.cmd
        gbpc.Command.__init__(self, self.cmd, args)

    def __call__(self, dsc):
        gbpc.Command.__call__(self, [dsc.dscfile])


def usage():
    print """Usage: git-import-dscs [git-import-dsc options] /path/to/dsc1 [/path/to/dsc2] ..."""


def main(argv):
    dirs = {'top': os.path.abspath(os.curdir)}
    dscs = []
    ret = 0
    dsc_cmp = DscCompareVersions()

    try:
        import_args = argv[1:]

        for arg in argv[::-1]:
            if arg.endswith('.dsc'):
                dscs.append(parse_dsc(arg))
                import_args.remove(arg)

        if not dscs:
            usage()
            sys.exit(1)

        dscs.sort(cmp=dsc_cmp)
        importer = GitImportDsc(import_args)

        try:
            repo = GitRepository('.')
            (clean, out) = repo.is_clean()
            if not clean:
                print >>sys.stderr, "Repository has uncommitted changes, commit these first: "
                raise GbpError, out
            else:
                dirs['pkg'] = dirs['top']
        except GitRepositoryError:
            # no git repository there yet
            dirs['pkg'] = os.path.join(dirs['top'], dscs[0].pkg)

        importer(dscs[0])
        os.chdir(dirs['pkg'])

        for dsc in dscs[1:]:
            importer(dsc)

    except (GbpError, gbpc.CommandExecFailed), err:
        if len(err.__str__()):
            print >>sys.stderr, err
        ret = 1
    finally:
        os.chdir(dirs['top'])

    if not ret:
        print 'Everything imported under %s' % dirs['pkg']
    return ret

if __name__ == '__main__':
    sys.exit(main(sys.argv))

# vim:et:ts=4:sw=4:et:sts=4:ai:set list listchars=tab\:»·,trail\:·: