mdw@git.distorted.org.uk Git - stgit/blob - stgit/commands/diff.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 = 'show the tree diff'
  28 usage = """%prog [options] [<files...>]
  29
  30 The revision format is '([patch]/[bottom | top]) | <tree-ish>'"""
  31
  32 options = [make_option('-r', metavar = 'rev1[:[rev2]]', dest = 'revs',
  33                        help = 'show the diff between revisions'),
  34            make_option('-s', '--stat',
  35                        help = 'show the stat instead of the diff',
  36                        action = 'store_true')]
  37
  38
  39 def func(parser, options, args):
  40     """Show the tree diff
  41     """
  42     if options.revs:
  43         rev_list = options.revs.split(':')
  44         rev_list_len = len(rev_list)
  45         if rev_list_len == 1:
  46             if rev_list[0][-1] == '/':
  47                 # the whole patch
  48                 rev1 = rev_list[0] + 'bottom'
  49                 rev2 = rev_list[0] + 'top'
  50             else:
  51                 rev1 = rev_list[0]
  52                 rev2 = None
  53         elif rev_list_len == 2:
  54             rev1 = rev_list[0]
  55             rev2 = rev_list[1]
  56             if rev2 == '':
  57                 rev2 = 'HEAD'
  58         else:
  59             parser.error('incorrect parameters to -r')
  60     else:
  61         rev1 = 'HEAD'
  62         rev2 = None
  63
  64     if options.stat:
  65         print git.diffstat(args, git_id(rev1), git_id(rev2))
  66     else:
  67         git.diff(args, git_id(rev1), git_id(rev2))