Add new 'rebase' command.
[stgit] / stgit / commands / rebase.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 import sys, os
19 from optparse import OptionParser, make_option
20
21 from stgit.commands.common import *
22 from stgit.utils import *
23 from stgit import stack, git
24
25
26 help = 'move the stack base to another point in history'
27 usage = """%prog [options] <new-base-id>
28
29 Pop all patches from current stack, move the stack base to the given
30 <new-base-id> and push the patches back."""
31
32 options = [make_option('-n', '--nopush',
33 help = 'do not push the patches back after rebasing',
34 action = 'store_true')]
35
36 def func(parser, options, args):
37 """Rebase the current stack
38 """
39 if len(args) != 1:
40 parser.error('incorrect number of arguments')
41
42 if crt_series.get_protected():
43 raise CmdException, 'This branch is protected. Rebase is not permitted'
44
45 check_local_changes()
46 check_conflicts()
47 check_head_top_equal()
48
49 # pop all patches
50 applied = crt_series.get_applied()
51 if len(applied) > 0:
52 print 'Popping all applied patches...',
53 sys.stdout.flush()
54 crt_series.pop_patch(applied[0])
55 print 'done'
56
57 print 'Rebasing to "%s"...' % args[0]
58 git.reset(tree_id = git_id(args[0]))
59
60 # push the patches back
61 if not options.nopush:
62 push_patches(applied)
63
64 print_crt_patch()