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
  27
  28
  29 help = 'exports a series of patches to <dir> (or patches)'
  30 usage = """%prog [options] [<dir>]
  31
  32 Export the applied patches into a given directory (defaults to
  33 'patches') in a standard unified GNU diff format. A template file
  34 (defaulting to '.git/patchexport.tmpl or
  35 /usr/share/stgit/templates/patchexport.tmpl') can be used for the
  36 patch format. The following variables are supported in the template
  37 file:
  38
  39   %(description)s - patch description
  40   %(diffstat)s    - the diff statistics
  41   %(authname)s    - author's name
  42   %(authemail)s   - author's e-mail
  43   %(authdate)s    - patch creation date
  44   %(commname)s    - committer's name
  45   %(commemail)s   - committer's e-mail
  46
  47 'export' can also generate a diff for a range of patches."""
  48
  49 options = [make_option('-n', '--numbered',
  50                        help = 'prefix the patch names with order numbers',
  51                        action = 'store_true'),
  52            make_option('-d', '--diff',
  53                        help = 'append .diff to the patch names',
  54                        action = 'store_true'),
  55            make_option('-t', '--template', metavar = 'FILE',
  56                        help = 'Use FILE as a template'),
  57            make_option('-r', '--range',
  58                        metavar = '[PATCH1][:[PATCH2]]',
  59                        help = 'export patches between PATCH1 and PATCH2')]
  60
  61
  62 def func(parser, options, args):
  63     if len(args) == 0:
  64         dirname = 'patches'
  65     elif len(args) == 1:
  66         dirname = args[0]
  67     else:
  68         parser.error('incorrect number of arguments')
  69
  70     if git.local_changes():
  71         print 'Warning: local changes in the tree. ' \
  72               'You might want to commit them first'
  73
  74     if not os.path.isdir(dirname):
  75         os.makedirs(dirname)
  76     series = file(os.path.join(dirname, 'series'), 'w+')
  77
  78     applied = crt_series.get_applied()
  79
  80     if options.range:
  81         boundaries = options.range.split(':')
  82         if len(boundaries) == 1:
  83             start = boundaries[0]
  84             stop = boundaries[0]
  85         elif len(boundaries) == 2:
  86             if boundaries[0] == '':
  87                 start = applied[0]
  88             else:
  89                 start = boundaries[0]
  90             if boundaries[1] == '':
  91                 stop = applied[-1]
  92             else:
  93                 stop = boundaries[1]
  94         else:
  95             raise CmdException, 'incorrect parameters to "--range"'
  96
  97         if start in applied:
  98             start_idx = applied.index(start)
  99         else:
 100             raise CmdException, 'Patch "%s" not applied' % start
 101         if stop in applied:
 102             stop_idx = applied.index(stop) + 1
 103         else:
 104             raise CmdException, 'Patch "%s" not applied' % stop
 105
 106         if start_idx >= stop_idx:
 107             raise CmdException, 'Incorrect patch range order'
 108     else:
 109         start_idx = 0
 110         stop_idx = len(applied)
 111
 112     patches = applied[start_idx:stop_idx]
 113
 114     num = len(patches)
 115     zpadding = len(str(num))
 116     if zpadding < 2:
 117         zpadding = 2
 118
 119     # get the template
 120     if options.template:
 121         patch_tmpl_list = [options.template]
 122     else:
 123         patch_tmpl_list = []
 124
 125     patch_tmpl_list += [os.path.join(git.base_dir, 'patchexport.tmpl'),
 126                         os.path.join(sys.prefix,
 127                                      'share/stgit/templates/patchexport.tmpl')]
 128     tmpl = ''
 129     for patch_tmpl in patch_tmpl_list:
 130         if os.path.isfile(patch_tmpl):
 131             tmpl = file(patch_tmpl).read()
 132             break
 133
 134     patch_no = 1;
 135     for p in patches:
 136         pname = p
 137         if options.diff:
 138             pname = '%s.diff' % pname
 139         if options.numbered:
 140             pname = '%s-%s' % (str(patch_no).zfill(zpadding), pname)
 141         pfile = os.path.join(dirname, pname)
 142         print >> series, pname
 143
 144         # get the patch description
 145         patch = crt_series.get_patch(p)
 146
 147         tmpl_dict = {'description': patch.get_description().rstrip(),
 148                      'diffstat': git.diffstat(rev1 = git_id('%s/bottom' % p),
 149                                               rev2 = git_id('%s/top' % p)),
 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         f = open(pfile, 'w+')
 168         f.write(descr)
 169
 170         # write the diff
 171         git.diff(rev1 = git_id('%s/bottom' % p),
 172                  rev2 = git_id('%s/top' % p),
 173                  out_fd = f)
 174         f.close()
 175         patch_no += 1
 176
 177     series.close()