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

   1
   2 __copyright__ = """
   3 Copyright (C) 2005, Catalin Marinas <catalin.marinas@gmail.com>
   4
   5 This program is free software; you can redistribute it and/or modify
   6 it under the terms of the GNU General Public License version 2 as
   7 published by the Free Software Foundation.
   8
   9 This program is distributed in the hope that it will be useful,
  10 but WITHOUT ANY WARRANTY; without even the implied warranty of
  11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12 GNU General Public License for more details.
  13
  14 You should have received a copy of the GNU General Public License
  15 along with this program; if not, write to the Free Software
  16 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
  17 """
  18
  19 import sys, os
  20 from optparse import OptionParser, make_option
  21
  22 from stgit.commands.common import *
  23 from stgit.utils import *
  24 from stgit import stack, git
  25
  26
  27 help = 'pop one or more patches from the stack'
  28 usage = """%prog [options] [<patch>]
  29
  30 Pop the topmost patch or a range of patches starting with the topmost
  31 one from the stack. The command fails if there are local changes or
  32 conflicts. If a patch name is given as argument, the command will pop
  33 all the patches up to the given one."""
  34
  35 options = [make_option('-a', '--all',
  36                        help = 'pop all the applied patches',
  37                        action = 'store_true'),
  38            make_option('-n', '--number', type = 'int',
  39                        help = 'pop the specified number of patches'),
  40            make_option('--keep',
  41                        help = 'keep the current working directory',
  42                        action = 'store_true')]
  43
  44
  45 def func(parser, options, args):
  46     """Pop the topmost patch from the stack
  47     """
  48     if len(args) > 1:
  49         parser.error('incorrect number of arguments')
  50
  51     if not options.keep:
  52         check_local_changes()
  53         check_conflicts()
  54         check_head_top_equal()
  55
  56     applied = crt_series.get_applied()
  57     if not applied:
  58         raise CmdException, 'No patches applied'
  59     # the popping is done in reverse order
  60     applied.reverse()
  61
  62     if options.all:
  63         patches = applied
  64     elif options.number:
  65         patches = applied[:options.number]
  66     elif len(args) == 1:
  67         upto_patch = args[0]
  68         if upto_patch not in applied:
  69             if upto_patch in crt_series.get_unapplied():
  70                 raise CmdException, 'Patch "%s" is not currently applied' \
  71                       % upto_patch
  72             else:
  73                 raise CmdException, 'Patch "%s" does not exist' % upto_patch
  74         patches = applied[:applied.index(upto_patch)]
  75     else:
  76         patches = [applied[0]]
  77
  78     if patches == []:
  79         raise CmdException, 'No patches to pop'
  80
  81     pop_patches(patches, options.keep)
  82
  83     print_crt_patch()