Add a 'pull' command
[stgit] / stgit / commands / pull.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 = 'pull the changes from the remote repository'
27 usage = '%prog [options]'
28
29 options = [make_option('-n', '--nopush',
30 help = 'do not push the patches back after pulling',
31 action = 'store_true'),
32 make_option('--head', metavar='OTHER_HEAD',
33 help = 'pull OTHER_HEAD instead of HEAD'),
34 make_option('--tag',
35 help = 'pull TAG')]
36
37
38 def func(parser, options, args):
39 """Pull the changes from a remote repository
40 """
41 if len(args) != 0:
42 parser.error('incorrect number of arguments')
43
44 check_local_changes()
45 check_conflicts()
46 check_head_top_equal()
47
48 branch = git.get_head_file()
49 location = read_string(os.path.join(git.base_dir, 'branches', branch))
50
51 print 'Pulling from "%s"...' % location
52 new_head = git.fetch(location, options.head, options.tag)
53 print 'done'
54
55 if new_head == git_id('base'):
56 print 'Branch already up-to-date'
57 else:
58 applied = crt_series.get_applied()
59
60 if len(applied) > 0:
61 print 'Popping all patches...',
62 sys.stdout.flush()
63 crt_series.pop_patch(applied[0])
64 print 'done'
65
66 git.switch(new_head)
67
68 if options.nopush:
69 applied = []
70 for p in applied:
71 print 'Pushing patch "%s"...' % p,
72 sys.stdout.flush()
73 crt_series.push_patch(p)
74 if crt_series.empty_patch(p):
75 print 'done (empty patch)'
76 else:
77 print 'done'
78
79 print_crt_patch()