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
  41
  42 def func(parser, options, args):
  43     """Pop the topmost patch from the stack
  44     """
  45     if len(args) > 1:
  46         parser.error('incorrect number of arguments')
  47
  48     check_local_changes()
  49     check_conflicts()
  50     check_head_top_equal()
  51
  52     applied = crt_series.get_applied()
  53     if not applied:
  54         raise CmdException, 'No patches applied'
  55     # the popping is done in reverse order
  56     applied.reverse()
  57
  58     if options.all:
  59         patches = applied
  60     elif options.number:
  61         patches = applied[:options.number]
  62     elif len(args) == 1:
  63         upto_patch = args[0]
  64         if upto_patch not in applied:
  65             if upto_patch in crt_series.get_unapplied():
  66                 raise CmdException, 'Patch "%s" is not currently applied' \
  67                       % upto_patch
  68             else:
  69                 raise CmdException, 'Patch "%s" does not exist' % upto_patch
  70         patches = applied[:applied.index(upto_patch)]
  71     else:
  72         patches = [applied[0]]
  73
  74     if patches == []:
  75         raise CmdException, 'No patches to pop'
  76
  77     pop_patches(patches)
  78
  79     print_crt_patch()