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7b1ba1a6 CL |
1 | """Branch command |
2 | """ | |
3 | ||
4 | __copyright__ = """ | |
5 | Copyright (C) 2005, Chuck Lever <cel@netapp.com> | |
6 | ||
7 | This program is free software; you can redistribute it and/or modify | |
8 | it under the terms of the GNU General Public License version 2 as | |
9 | published by the Free Software Foundation. | |
10 | ||
11 | This program is distributed in the hope that it will be useful, | |
12 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | GNU General Public License for more details. | |
15 | ||
16 | You should have received a copy of the GNU General Public License | |
17 | along with this program; if not, write to the Free Software | |
18 | Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
19 | """ | |
20 | ||
21 | import sys, os | |
22 | from optparse import OptionParser, make_option | |
23 | ||
24 | from stgit.commands.common import * | |
25 | from stgit.utils import * | |
26 | from stgit import stack, git | |
27 | ||
28 | ||
29 | help = 'manage development branches' | |
30 | usage = """%prog [options] branch-name [commit-id] | |
31 | ||
32 | Create, list, switch between, rename, or delete development branches | |
33 | within a git repository. By default, a single branch called 'master' | |
34 | is always created in a new repository. This subcommand allows you to | |
35 | manage several patch series in the same repository. | |
36 | ||
37 | When displaying the branches, the names can be prefixed with | |
38 | 's' (StGIT managed) or 'p' (protected).""" | |
39 | ||
40 | options = [make_option('-c', '--create', | |
41 | help = 'create a new development branch', | |
42 | action = 'store_true'), | |
43 | make_option('--delete', | |
44 | help = 'delete an existing development branch', | |
45 | action = 'store_true'), | |
46 | make_option('--force', | |
47 | help = 'force a delete when the series is not empty', | |
48 | action = 'store_true'), | |
49 | make_option('-l', '--list', | |
50 | help = 'list branches contained in this repository', | |
51 | action = 'store_true'), | |
52 | make_option('-r', '--rename', | |
53 | help = 'rename an existing development branch', | |
54 | action = 'store_true')] | |
55 | ||
56 | ||
57 | def is_current_branch(branch_name): | |
58 | return git.get_head_file() == branch_name | |
59 | ||
60 | def print_branch(branch_name): | |
61 | initialized = ' ' | |
62 | current = ' ' | |
63 | if os.path.isdir(os.path.join(git.base_dir, 'patches', branch_name)): | |
64 | initialized = 's' | |
65 | if is_current_branch(branch_name): | |
66 | current = '>' | |
67 | print '%s %s\t%s' % (current, initialized, branch_name) | |
68 | ||
69 | def delete_branch(doomed_name, force = False): | |
70 | if is_current_branch(doomed_name) and doomed_name != 'master': | |
71 | git.switch_branch('master') | |
72 | ||
73 | stack.Series(doomed_name).delete(force) | |
74 | ||
75 | if doomed_name != 'master': | |
76 | git.delete_branch(doomed_name) | |
77 | ||
78 | print 'Branch "%s" has been deleted.' % doomed_name | |
79 | ||
80 | def rename_branch(from_name, to_name): | |
81 | if from_name == 'master': | |
82 | raise CmdException, 'Renaming the master branch is not allowed' | |
83 | ||
84 | to_patchdir = os.path.join(git.base_dir, 'patches', to_name) | |
85 | if os.path.isdir(to_patchdir): | |
86 | raise CmdException, '"%s" already exists' % to_patchdir | |
87 | to_base = os.path.join(git.base_dir, 'refs', 'bases', to_name) | |
88 | if os.path.isfile(to_base): | |
89 | raise CmdException, '"%s" already exists' % to_base | |
90 | ||
91 | git.rename_branch(from_name, to_name) | |
92 | ||
93 | from_patchdir = os.path.join(git.base_dir, 'patches', from_name) | |
94 | if os.path.isdir(from_patchdir): | |
95 | os.rename(from_patchdir, to_patchdir) | |
96 | from_base = os.path.join(git.base_dir, 'refs', 'bases', from_name) | |
97 | if os.path.isfile(from_base): | |
98 | os.rename(from_base, to_base) | |
99 | ||
100 | print 'Renamed branch "%s" as "%s".' % (from_name, to_name) | |
101 | ||
102 | def func(parser, options, args): | |
103 | ||
104 | if options.create: | |
105 | ||
106 | if len(args) == 0 or len(args) > 2: | |
107 | parser.error('incorrect number of arguments') | |
108 | tree_id = None | |
109 | if len(args) == 2: | |
110 | tree_id = args[1] | |
111 | ||
112 | git.create_branch(args[0], tree_id) | |
113 | stack.Series(args[0]).init() | |
114 | ||
115 | print 'Branch "%s" created.' % args[0] | |
116 | return | |
117 | ||
118 | elif options.delete: | |
119 | ||
120 | if len(args) != 1: | |
121 | parser.error('incorrect number of arguments') | |
122 | delete_branch(args[0], options.force) | |
123 | return | |
124 | ||
125 | elif options.list: | |
126 | ||
127 | if len(args) != 0: | |
128 | parser.error('incorrect number of arguments') | |
129 | ||
130 | branches = os.listdir(os.path.join(git.base_dir, 'refs', 'heads')) | |
131 | branches.sort() | |
132 | ||
133 | print 'Available branches:' | |
134 | for i in branches: | |
135 | print_branch(i) | |
136 | return | |
137 | ||
138 | elif options.rename: | |
139 | ||
140 | if len(args) != 2: | |
141 | parser.error('incorrect number of arguments') | |
142 | rename_branch(args[0], args[1]) | |
143 | return | |
144 | ||
145 | elif len(args) == 1: | |
146 | ||
147 | print 'Switching to branch "%s"...' % args[0], | |
148 | sys.stdout.flush() | |
149 | ||
150 | git.switch_branch(args[0]) | |
151 | ||
152 | print 'done' | |
153 | return | |
154 | ||
155 | # default action: print the current branch | |
156 | if len(args) != 0: | |
157 | parser.error('incorrect number of arguments') | |
158 | ||
159 | print git.get_head_file() |