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

   1 __copyright__ = """
   2 Copyright (C) 2005, Catalin Marinas <catalin.marinas@gmail.com>
   3
   4 This program is free software; you can redistribute it and/or modify
   5 it under the terms of the GNU General Public License version 2 as
   6 published by the Free Software Foundation.
   7
   8 This program is distributed in the hope that it will be useful,
   9 but WITHOUT ANY WARRANTY; without even the implied warranty of
  10 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  11 GNU General Public License for more details.
  12
  13 You should have received a copy of the GNU General Public License
  14 along with this program; if not, write to the Free Software
  15 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
  16 """
  17
  18 from optparse import make_option
  19 from stgit.out import *
  20 from stgit.commands import common
  21 from stgit.lib import transaction
  22
  23 help = 'delete the empty patches in the series'
  24 usage = """%prog [options]
  25
  26 Delete the empty patches in the whole series or only those applied or
  27 unapplied. A patch is considered empty if the two commit objects
  28 representing its boundaries refer to the same tree object."""
  29
  30 directory = common.DirectoryHasRepositoryLib()
  31 options = [make_option('-a', '--applied',
  32                        help = 'delete the empty applied patches',
  33                        action = 'store_true'),
  34            make_option('-u', '--unapplied',
  35                        help = 'delete the empty unapplied patches',
  36                        action = 'store_true')]
  37
  38
  39 def _clean(stack, clean_applied, clean_unapplied):
  40     trans = transaction.StackTransaction(stack, 'clean', allow_conflicts = True)
  41     def del_patch(pn):
  42         if pn in stack.patchorder.applied:
  43             if pn == stack.patchorder.applied[-1]:
  44                 # We're about to clean away the topmost patch. Don't
  45                 # do that if we have conflicts, since that means the
  46                 # patch is only empty because the conflicts have made
  47                 # us dump its contents into the index and worktree.
  48                 if stack.repository.default_index.conflicts():
  49                     return False
  50             return clean_applied and trans.patches[pn].data.is_nochange()
  51         elif pn in stack.patchorder.unapplied:
  52             return clean_unapplied and trans.patches[pn].data.is_nochange()
  53     for pn in trans.delete_patches(del_patch):
  54         trans.push_patch(pn)
  55     trans.run()
  56
  57 def func(parser, options, args):
  58     """Delete the empty patches in the series
  59     """
  60     if len(args) != 0:
  61         parser.error('incorrect number of arguments')
  62
  63     if not (options.applied or options.unapplied):
  64         options.applied = options.unapplied = True
  65
  66     _clean(directory.repository.current_stack,
  67            options.applied, options.unapplied)