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 stgit.argparse import opt
  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 kind = 'stack'
  25 usage = ['']
  26 description = """
  27 Delete the empty patches in the whole series or only those applied or
  28 unapplied. A patch is considered empty if the two commit objects
  29 representing its boundaries refer to the same tree object."""
  30
  31 args = []
  32 options = [
  33     opt('-a', '--applied', action = 'store_true',
  34         short = 'Delete the empty applied patches'),
  35     opt('-u', '--unapplied', action = 'store_true',
  36         short = 'Delete the empty unapplied patches')]
  37
  38 directory = common.DirectoryHasRepositoryLib()
  39
  40 def _clean(stack, clean_applied, clean_unapplied):
  41     trans = transaction.StackTransaction(stack, 'clean', allow_conflicts = True)
  42     def del_patch(pn):
  43         if pn in stack.patchorder.applied:
  44             if pn == stack.patchorder.applied[-1]:
  45                 # We're about to clean away the topmost patch. Don't
  46                 # do that if we have conflicts, since that means the
  47                 # patch is only empty because the conflicts have made
  48                 # us dump its contents into the index and worktree.
  49                 if stack.repository.default_index.conflicts():
  50                     return False
  51             return clean_applied and trans.patches[pn].data.is_nochange()
  52         elif pn in stack.patchorder.unapplied:
  53             return clean_unapplied and trans.patches[pn].data.is_nochange()
  54     for pn in trans.delete_patches(del_patch):
  55         trans.push_patch(pn)
  56     trans.run()
  57
  58 def func(parser, options, args):
  59     """Delete the empty patches in the series
  60     """
  61     if len(args) != 0:
  62         parser.error('incorrect number of arguments')
  63
  64     if not (options.applied or options.unapplied):
  65         options.applied = options.unapplied = True
  66
  67     _clean(directory.repository.current_stack,
  68            options.applied, options.unapplied)