mdw@git.distorted.org.uk Git - stgit/blob - stgit/commands/export.py

   1 """Export command
   2 """
   3
   4 __copyright__ = """
   5 Copyright (C) 2005, Catalin Marinas <catalin.marinas@gmail.com>
   6
   7 This program is free software; you can redistribute it and/or modify
   8 it under the terms of the GNU General Public License version 2 as
   9 published by the Free Software Foundation.
  10
  11 This program is distributed in the hope that it will be useful,
  12 but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 GNU General Public License for more details.
  15
  16 You should have received a copy of the GNU General Public License
  17 along with this program; if not, write to the Free Software
  18 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
  19 """
  20
  21 import sys, os
  22 from optparse import OptionParser, make_option
  23
  24 from stgit.commands.common import *
  25 from stgit.utils import *
  26 from stgit import stack, git, templates
  27
  28
  29 help = 'exports patches to a directory'
  30 usage = """%prog [options] [<patch1>] [<patch2>] [<patch3>..<patch4>]
  31
  32 Export a range of applied patches to a given directory (defaults to
  33 'patches-<branch>') in a standard unified GNU diff format. A template
  34 file (defaulting to '.git/patchexport.tmpl' or
  35 '~/.stgit/templates/patchexport.tmpl' or
  36 '/usr/share/stgit/templates/patchexport.tmpl') can be used for the
  37 patch format. The following variables are supported in the template
  38 file:
  39
  40   %(description)s - patch description
  41   %(shortdescr)s  - the first line of the patch description
  42   %(longdescr)s   - the rest of the patch description, after the first line
  43   %(diffstat)s    - the diff statistics
  44   %(authname)s    - author's name
  45   %(authemail)s   - author's e-mail
  46   %(authdate)s    - patch creation date
  47   %(commname)s    - committer's name
  48   %(commemail)s   - committer's e-mail
  49 """
  50
  51 options = [make_option('-d', '--dir',
  52                        help = 'export patches to DIR instead of the default'),
  53            make_option('-p', '--patch',
  54                        help = 'append .patch to the patch names',
  55                        action = 'store_true'),
  56            make_option('-e', '--extension',
  57                        help = 'append .EXTENSION to the patch names'),
  58            make_option('-n', '--numbered',
  59                        help = 'prefix the patch names with order numbers',
  60                        action = 'store_true'),
  61            make_option('-t', '--template', metavar = 'FILE',
  62                        help = 'Use FILE as a template'),
  63            make_option('-b', '--branch',
  64                        help = 'use BRANCH instead of the default one'),
  65            make_option('--binary',
  66                        help = 'output a diff even for binary files',
  67                        action = 'store_true'),
  68            make_option('-s', '--stdout',
  69                        help = 'dump the patches to the standard output',
  70                        action = 'store_true')]
  71
  72
  73 def func(parser, options, args):
  74     """Export a range of patches.
  75     """
  76     if options.dir:
  77         dirname = options.dir
  78     else:
  79         dirname = 'patches-%s' % crt_series.get_branch()
  80
  81     if not options.branch and git.local_changes():
  82         out.warn('Local changes in the tree;'
  83                  ' you might want to commit them first')
  84
  85     if not options.stdout:
  86         if not os.path.isdir(dirname):
  87             os.makedirs(dirname)
  88         series = file(os.path.join(dirname, 'series'), 'w+')
  89
  90     if options.binary:
  91         diff_flags = [ '--binary' ]
  92     else:
  93         diff_flags = []
  94
  95     applied = crt_series.get_applied()
  96     if len(args) != 0:
  97         patches = parse_patches(args, applied)
  98     else:
  99         patches = applied
 100
 101     num = len(patches)
 102     if num == 0:
 103         raise CmdException, 'No patches applied'
 104
 105     zpadding = len(str(num))
 106     if zpadding < 2:
 107         zpadding = 2
 108
 109     # get the template
 110     if options.template:
 111         tmpl = file(options.template).read()
 112     else:
 113         tmpl = templates.get_template('patchexport.tmpl')
 114         if not tmpl:
 115             tmpl = ''
 116
 117     # note the base commit for this series
 118     if not options.stdout:
 119         base_commit = crt_series.get_patch(patches[0]).get_bottom()
 120         print >> series, '# This series applies on GIT commit %s' % base_commit
 121
 122     patch_no = 1;
 123     for p in patches:
 124         pname = p
 125         if options.patch:
 126             pname = '%s.patch' % pname
 127         elif options.extension:
 128             pname = '%s.%s' % (pname, options.extension)
 129         if options.numbered:
 130             pname = '%s-%s' % (str(patch_no).zfill(zpadding), pname)
 131         pfile = os.path.join(dirname, pname)
 132         if not options.stdout:
 133             print >> series, pname
 134
 135         # get the patch description
 136         patch = crt_series.get_patch(p)
 137
 138         descr = patch.get_description().strip()
 139         descr_lines = descr.split('\n')
 140
 141         short_descr = descr_lines[0].rstrip()
 142         long_descr = reduce(lambda x, y: x + '\n' + y,
 143                             descr_lines[1:], '').strip()
 144
 145         tmpl_dict = {'description': patch.get_description().rstrip(),
 146                      'shortdescr': short_descr,
 147                      'longdescr': long_descr,
 148                      'diffstat': git.diffstat(rev1 = patch.get_bottom(),
 149                                               rev2 = patch.get_top()),
 150                      'authname': patch.get_authname(),
 151                      'authemail': patch.get_authemail(),
 152                      'authdate': patch.get_authdate(),
 153                      'commname': patch.get_commname(),
 154                      'commemail': patch.get_commemail()}
 155         for key in tmpl_dict:
 156             if not tmpl_dict[key]:
 157                 tmpl_dict[key] = ''
 158
 159         try:
 160             descr = tmpl % tmpl_dict
 161         except KeyError, err:
 162             raise CmdException, 'Unknown patch template variable: %s' \
 163                   % err
 164         except TypeError:
 165             raise CmdException, 'Only "%(name)s" variables are ' \
 166                   'supported in the patch template'
 167
 168         if options.stdout:
 169             f = sys.stdout
 170         else:
 171             f = open(pfile, 'w+')
 172
 173         if options.stdout and num > 1:
 174             print '-'*79
 175             print patch.get_name()
 176             print '-'*79
 177
 178         # write description
 179         f.write(descr)
 180         # write the diff
 181         git.diff(rev1 = patch.get_bottom(),
 182                  rev2 = patch.get_top(),
 183                  out_fd = f,
 184                  diff_flags = diff_flags )
 185         if not options.stdout:
 186             f.close()
 187         patch_no += 1
 188
 189     if not options.stdout:
 190         series.close()