Catch early trying rebasing to unknown ref, and add testcase.
[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 make_option('-m', '--merged',
36 help = 'check for patches merged upstream',
37 action = 'store_true'),
38 make_option('--force',
39 help = 'force rebase even if the stack based was moved by (un)commits',
40 action = 'store_true')]
41
42 def func(parser, options, args):
43 """Rebase the current stack
44 """
45 if len(args) != 1:
46 parser.error('incorrect number of arguments')
47
48 if crt_series.get_protected():
49 raise CmdException, 'This branch is protected. Rebase is not permitted'
50
51 check_local_changes()
52 check_conflicts()
53 check_head_top_equal()
54
55 # ensure an exception is raised before popping on non-existent target
56 if git_id(args[0]) == None:
57 raise GitException, 'Unknown revision: %s' % git_id
58
59 applied = prepare_rebase(real_rebase=True, force=options.force)
60 rebase(args[0])
61 post_rebase(applied, options.nopush, options.merged)
62
63 print_crt_patch()