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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'), | |
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52 | make_option('-p', '--protect', |
53 | help = 'prevent "stg pull" from modifying this branch', | |
54 | action = 'store_true'), | |
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55 | make_option('-r', '--rename', |
56 | help = 'rename an existing development branch', | |
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57 | action = 'store_true'), |
58 | make_option('-u', '--unprotect', | |
59 | help = 'allow "stg pull" to modify this branch', | |
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60 | action = 'store_true')] |
61 | ||
62 | ||
63 | def is_current_branch(branch_name): | |
64 | return git.get_head_file() == branch_name | |
65 | ||
66 | def print_branch(branch_name): | |
67 | initialized = ' ' | |
68 | current = ' ' | |
0b4b9499 | 69 | protected = ' ' |
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70 | if os.path.isdir(os.path.join(git.base_dir, 'patches', branch_name)): |
71 | initialized = 's' | |
72 | if is_current_branch(branch_name): | |
73 | current = '>' | |
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74 | if stack.Series(branch_name).get_protected(): |
75 | protected = 'p' | |
76 | print '%s %s%s\t%s' % (current, initialized, protected, branch_name) | |
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77 | |
78 | def delete_branch(doomed_name, force = False): | |
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79 | if stack.Series(doomed_name).get_protected(): |
80 | raise CmdException, 'This branch is protected. Delete is not permitted' | |
81 | ||
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82 | if is_current_branch(doomed_name) and doomed_name != 'master': |
83 | git.switch_branch('master') | |
84 | ||
85 | stack.Series(doomed_name).delete(force) | |
86 | ||
87 | if doomed_name != 'master': | |
88 | git.delete_branch(doomed_name) | |
89 | ||
90 | print 'Branch "%s" has been deleted.' % doomed_name | |
91 | ||
92 | def rename_branch(from_name, to_name): | |
93 | if from_name == 'master': | |
94 | raise CmdException, 'Renaming the master branch is not allowed' | |
95 | ||
96 | to_patchdir = os.path.join(git.base_dir, 'patches', to_name) | |
97 | if os.path.isdir(to_patchdir): | |
98 | raise CmdException, '"%s" already exists' % to_patchdir | |
99 | to_base = os.path.join(git.base_dir, 'refs', 'bases', to_name) | |
100 | if os.path.isfile(to_base): | |
101 | raise CmdException, '"%s" already exists' % to_base | |
102 | ||
103 | git.rename_branch(from_name, to_name) | |
104 | ||
105 | from_patchdir = os.path.join(git.base_dir, 'patches', from_name) | |
106 | if os.path.isdir(from_patchdir): | |
107 | os.rename(from_patchdir, to_patchdir) | |
108 | from_base = os.path.join(git.base_dir, 'refs', 'bases', from_name) | |
109 | if os.path.isfile(from_base): | |
110 | os.rename(from_base, to_base) | |
111 | ||
112 | print 'Renamed branch "%s" as "%s".' % (from_name, to_name) | |
113 | ||
114 | def func(parser, options, args): | |
115 | ||
116 | if options.create: | |
117 | ||
118 | if len(args) == 0 or len(args) > 2: | |
119 | parser.error('incorrect number of arguments') | |
120 | tree_id = None | |
121 | if len(args) == 2: | |
122 | tree_id = args[1] | |
123 | ||
124 | git.create_branch(args[0], tree_id) | |
125 | stack.Series(args[0]).init() | |
126 | ||
127 | print 'Branch "%s" created.' % args[0] | |
128 | return | |
129 | ||
130 | elif options.delete: | |
131 | ||
132 | if len(args) != 1: | |
133 | parser.error('incorrect number of arguments') | |
134 | delete_branch(args[0], options.force) | |
135 | return | |
136 | ||
137 | elif options.list: | |
138 | ||
139 | if len(args) != 0: | |
140 | parser.error('incorrect number of arguments') | |
141 | ||
142 | branches = os.listdir(os.path.join(git.base_dir, 'refs', 'heads')) | |
143 | branches.sort() | |
144 | ||
145 | print 'Available branches:' | |
146 | for i in branches: | |
147 | print_branch(i) | |
148 | return | |
149 | ||
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150 | elif options.protect: |
151 | ||
152 | if len(args) == 0: | |
153 | branch = git.get_head_file() | |
154 | elif len(args) == 1: | |
155 | branch = args[0] | |
156 | else: | |
157 | parser.error('incorrect number of arguments') | |
158 | ||
159 | base = os.path.join(git.base_dir, 'refs', 'bases', branch) | |
160 | if not os.path.isfile(base): | |
161 | raise CmdException, 'Branch "%s" is not controlled by StGit' % branch | |
162 | ||
163 | print 'Protecting branch "%s"...' % branch | |
164 | stack.Series(branch).protect() | |
165 | return | |
166 | ||
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167 | elif options.rename: |
168 | ||
169 | if len(args) != 2: | |
170 | parser.error('incorrect number of arguments') | |
171 | rename_branch(args[0], args[1]) | |
172 | return | |
173 | ||
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174 | elif options.unprotect: |
175 | ||
176 | if len(args) == 0: | |
177 | branch = git.get_head_file() | |
178 | elif len(args) == 1: | |
179 | branch = args[0] | |
180 | else: | |
181 | parser.error('incorrect number of arguments') | |
182 | ||
183 | base = os.path.join(git.base_dir, 'refs', 'bases', branch) | |
184 | if not os.path.isfile(base): | |
185 | raise CmdException, 'Branch "%s" is not controlled by StGit' % branch | |
186 | ||
187 | print 'Unprotecting branch "%s"...' % branch | |
188 | stack.Series(branch).unprotect() | |
189 | return | |
190 | ||
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191 | elif len(args) == 1: |
192 | ||
193 | print 'Switching to branch "%s"...' % args[0], | |
194 | sys.stdout.flush() | |
195 | ||
196 | git.switch_branch(args[0]) | |
197 | ||
198 | print 'done' | |
199 | return | |
200 | ||
201 | # default action: print the current branch | |
202 | if len(args) != 0: | |
203 | parser.error('incorrect number of arguments') | |
204 | ||
205 | print git.get_head_file() |