Catch early trying rebasing to unknown ref, and add testcase.
[stgit] / stgit / commands / rebase.py
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1__copyright__ = """
2Copyright (C) 2005, Catalin Marinas <catalin.marinas@gmail.com>
3
4This program is free software; you can redistribute it and/or modify
5it under the terms of the GNU General Public License version 2 as
6published by the Free Software Foundation.
7
8This program is distributed in the hope that it will be useful,
9but WITHOUT ANY WARRANTY; without even the implied warranty of
10MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
11GNU General Public License for more details.
12
13You should have received a copy of the GNU General Public License
14along with this program; if not, write to the Free Software
15Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
16"""
17
18import sys, os
19from optparse import OptionParser, make_option
20
21from stgit.commands.common import *
22from stgit.utils import *
23from stgit import stack, git
24
25
26help = 'move the stack base to another point in history'
27usage = """%prog [options] <new-base-id>
28
29Pop all patches from current stack, move the stack base to the given
30<new-base-id> and push the patches back."""
31
32options = [make_option('-n', '--nopush',
33 help = 'do not push the patches back after rebasing',
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34 action = 'store_true'),
35 make_option('-m', '--merged',
36 help = 'check for patches merged upstream',
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37 action = 'store_true'),
38 make_option('--force',
39 help = 'force rebase even if the stack based was moved by (un)commits',
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40 action = 'store_true')]
41
42def 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
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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
e5834af7 59 applied = prepare_rebase(real_rebase=True, force=options.force)
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60 rebase(args[0])
61 post_rebase(applied, options.nopush, options.merged)
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62
63 print_crt_patch()