summaryrefslogtreecommitdiff
path: root/git-import-dsc
blob: 82da3ebf157458567f686bcc6633b71dce144f3a (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
#!/usr/bin/python
# vim: set fileencoding=utf-8 :
#
# (C) 2006,2007 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
"""make a git archive out of a Debian source package"""

import sys
import re
import os
import tempfile
import glob
import gbp.command_wrappers as gbpc
from gbp.deb_utils import debian_version_chars
from gbp.git_utils import build_tag, GitRepository
from gbp.config import GbpOptionParser
from gbp.errors import GbpError


class DscFile(object):
    """Keeps all needed data read from a dscfile"""
    pkg_re = re.compile('Source:\s+(?P<pkg>.+)\s*')
    version_re = re.compile("Version:\s(\d+\:)?(?P<version>[%s]+)\s*$" % debian_version_chars)
    tar_re = re.compile('^\s\w+\s\d+\s+(?P<tar>[^_]+_[^_]+(\.orig)?\.tar\.(gz|bz2))')

    def __init__(self, dscfile):
        self.dscfile = os.path.abspath(dscfile)
        f = file(self.dscfile)
        for line in f:
            m = self.version_re.match(line)
            if m:
                if '-' in m.group('version'):
                    self.debian_version = m.group('version').split("-")[-1]
                    self.upstream_version = "-".join(m.group('version').split("-")[0:-1])
                    self.native = False
                else:
                    self.native = True # Debian native package
                    self.upstream_version = m.group('version')
                continue
            m = self.pkg_re.match(line)
            if m:
                self.pkg = m.group('pkg')
                continue
            m = self.tar_re.match(line)
            if m:
                fromdir = os.path.dirname(dscfile)
                self.tgz = os.path.join(fromdir, m.group('tar'))
                continue
        f.close()
    

def parse_dsc(dscfile):
    """parse dsc by creating a DscFile object"""
    try:
        dsc = DscFile(dscfile)
    except IOError, err:
        print >>sys.stderr, "Error reading dsc file: %s" % err
        dsc = None
    else:
        try:
            if dsc.native:
                print "Debian Native Package"
                print "Version:", dsc.upstream_version
            else:
                print "Upstream version:", dsc.upstream_version
                print "Debian version:", dsc.debian_version
        except AttributeError:
            print >>sys.stderr, "Error parsing dsc file %s" % dscfile 
            dsc = None
    return dsc


def import_initial(src, dirs, options, tagger, filter):
    """
    import the intial version and (in the case of a non native package) create
    the 'upstream' branch. Tag everything appropriately.
    """
    try:
        unpackTGZ = gbpc.UnpackTarArchive(src.tgz, dirs['tmp'], filter=filter)
        unpackTGZ()
    except gbpc.CommandExecFailed:
        print >>sys.stderr, "Unpacking of %s failed" % src.tgz
        gbpc.RemoveTree(dirs['tmp'])()
        return False

    try:
        dirs['git'] = glob.glob('%s/*' % unpackTGZ.dir)[0]
        os.chdir(dirs['git'])
        gbpc.GitInitDB()()
        gbpc.GitAdd()(['.'])
        gbpc.GitCommitAll()(
             msg="Imported %s version %s" % (['upstream', 'Debian'][src.native],
             src.upstream_version))
        format = [options.upstream_tag, options.debian_tag][src.native]
        tagger(build_tag(format, src.upstream_version),
               msg="Upstream version %s" % src.upstream_version)
        if not src.native:
            gbpc.GitBranch()(options.upstream_branch)
    except gbpc.CommandExecFailed:
        print >>sys.stderr, "Creation of git repository failed"
        gbpc.RemoveTree(unpackTGZ.dir)()
        return False
    return True


def apply_debian_patch(src, dirs, options, tagger, filter):
    """apply the debian patch and tag appropriately"""
    try:
        version = "%s-%s" % (src.upstream_version, src.debian_version)
        gbpc.DpkgSourceExtract()(src.dscfile, dirs['dpkg-src'])
        os.chdir(dirs['git'])
        repo = GitRepository('.')

        old = set(repo.index_files())
        new = set(gbpc.copy_from(dirs['dpkg-src'], filter))
        gbpc.GitAdd()(['.'])
        files = [ obj for obj in old - new if not os.path.isdir(obj)]
        if files:
            gbpc.GitRm()(files)
        if not repo.is_clean()[0]:
            gbpc.GitCommitAll()(msg="Imported Debian patch %s" % version)
        else:
            print "Nothing to commit, nothing imported."

        tagger(build_tag(options.debian_tag, version),
               msg="Debian release %s" % version)
    except gbpc.CommandExecFailed:
        print >>sys.stderr, "Failed to import Debian package"
        return False
    return True


def move_tree(src, dirs):
    """rename the temporary unpack directory to it's final name"""
    try:
        os.rename(dirs['git'], src.pkg)
    except OSError, err:
        print >>sys.stderr, "Cannot move git repository '%s' to it's final location '%s': %s" % (dirs['git'],
                             os.path.abspath(src.pkg), err)
        return False
    else:
        gbpc.RemoveTree(dirs['tmp'])()
    return True


def create_debian_branch(debian_branch, dirs):
    os.chdir(dirs['git'])
    repo = GitRepository('.')
    if repo.get_branch() != debian_branch:
        if not repo.has_branch(debian_branch):
            print "Creating Debian branch '%s'" % debian_branch
            gbpc.GitBranch()(debian_branch)
        gbpc.GitCheckoutBranch(debian_branch)
    os.chdir(dirs['top'])


def main(argv):
    dirs = {'top': os.path.abspath(os.curdir)}
    ret = 0

    parser = GbpOptionParser(command=os.path.basename(argv[0]), prefix='',
                             usage='%prog [options] /path/to/package.dsc')

    parser.add_option("-v", "--verbose", action="store_true", dest="verbose", default=False,
                      help="verbose command execution")
    parser.add_config_file_option(option_name="debian-branch", dest='debian_branch',
                      help="branch the debian patch is being developed on, default is '%(debian-branch)s'")
    parser.add_config_file_option(option_name="upstream-branch", dest="upstream_branch",
                      help="upstream branch, default is '%(upstream-branch)s'")
    parser.add_config_file_option(option_name="sign-tags", dest="sign_tags",
                      help="sign git tags", action="store_true")
    parser.add_config_file_option(option_name="keyid", dest="keyid",
                      help="GPG keyid to sign tags with")
    parser.add_config_file_option(option_name="debian-tag", dest="debian_tag",
                      help="Format string for debian tags, default is '%(debian-tag)s'")
    parser.add_config_file_option(option_name="upstream-tag", dest="upstream_tag",
                      help="Format string for upstream tags, default is '%(upstream-tag)s'")
    parser.add_config_file_option(option_name="filter", dest="filter",
                      help="files to filter out during import")
    (options, args) = parser.parse_args(argv[1:])

    if options.verbose:
        gbpc.Command.verbose = True

    gitTag = gbpc.GitTag(options.sign_tags, options.keyid)

    try:
        if len(args) != 1:
            parser.print_help()
            raise GbpError
        else:        
            src = parse_dsc(args[0])
            if not src:
                raise GbpError

            dirs['tmp'] = os.path.abspath(tempfile.mkdtemp(dir='.'))
            if not import_initial(src, dirs, options, gitTag, options.filter):
                raise GbpError
            os.chdir(dirs['top'])
            if not src.native:
                dirs['unpack'] = os.path.join(dirs['tmp'], 'unpack')
                os.mkdir(dirs['unpack'])
                dirs['dpkg-src'] = os.path.join(dirs['unpack'],
                                                "%s-%s-%s" % (src.pkg, src.upstream_version, src.debian_version))
                if not apply_debian_patch(src, dirs, options, gitTag, options.filter):
                    raise GbpError
                create_debian_branch(options.debian_branch, dirs)
            os.chdir(dirs['top'])
            if not move_tree(src, dirs):
                raise GbpError
    except GbpError, err:
        if len(err.__str__()):
            print >>sys.stderr, err
        ret = 1
        os.chdir(dirs['top'])

        if not ret:
            print 'Everything imported under %s' % src.pkg

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

# vim:et:ts=4:sw=4: