Commit | Line | Data |
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41a6d859 CM |
1 | """Python GIT interface |
2 | """ | |
3 | ||
4 | __copyright__ = """ | |
5 | Copyright (C) 2005, Catalin Marinas <catalin.marinas@gmail.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 | ||
3659ef88 | 21 | import sys, os, popen2, re, gitmergeonefile |
41a6d859 | 22 | |
170f576b | 23 | from stgit import basedir |
41a6d859 CM |
24 | from stgit.utils import * |
25 | ||
26 | # git exception class | |
27 | class GitException(Exception): | |
28 | pass | |
29 | ||
30 | ||
41a6d859 | 31 | |
41a6d859 CM |
32 | # |
33 | # Classes | |
34 | # | |
35 | class Commit: | |
36 | """Handle the commit objects | |
37 | """ | |
38 | def __init__(self, id_hash): | |
39 | self.__id_hash = id_hash | |
41a6d859 | 40 | |
26dba451 | 41 | lines = _output_lines('git-cat-file commit %s' % id_hash) |
37a4d1bf | 42 | self.__parents = [] |
26dba451 BL |
43 | for i in range(len(lines)): |
44 | line = lines[i] | |
41a6d859 CM |
45 | if line == '\n': |
46 | break | |
47 | field = line.strip().split(' ', 1) | |
48 | if field[0] == 'tree': | |
49 | self.__tree = field[1] | |
50 | elif field[0] == 'parent': | |
37a4d1bf | 51 | self.__parents.append(field[1]) |
41a6d859 CM |
52 | if field[0] == 'author': |
53 | self.__author = field[1] | |
dad310d0 | 54 | if field[0] == 'committer': |
41a6d859 | 55 | self.__committer = field[1] |
0618ea9c | 56 | self.__log = ''.join(lines[i+1:]) |
41a6d859 CM |
57 | |
58 | def get_id_hash(self): | |
59 | return self.__id_hash | |
60 | ||
61 | def get_tree(self): | |
62 | return self.__tree | |
63 | ||
64 | def get_parent(self): | |
37a4d1bf CM |
65 | return self.__parents[0] |
66 | ||
67 | def get_parents(self): | |
68 | return self.__parents | |
41a6d859 CM |
69 | |
70 | def get_author(self): | |
71 | return self.__author | |
72 | ||
73 | def get_committer(self): | |
74 | return self.__committer | |
75 | ||
37a4d1bf CM |
76 | def get_log(self): |
77 | return self.__log | |
78 | ||
8e29bcd2 CM |
79 | # dictionary of Commit objects, used to avoid multiple calls to git |
80 | __commits = dict() | |
41a6d859 CM |
81 | |
82 | # | |
83 | # Functions | |
84 | # | |
bae29ddd | 85 | |
8e29bcd2 CM |
86 | def get_commit(id_hash): |
87 | """Commit objects factory. Save/look-up them in the __commits | |
88 | dictionary | |
89 | """ | |
3237b6e4 CM |
90 | global __commits |
91 | ||
8e29bcd2 CM |
92 | if id_hash in __commits: |
93 | return __commits[id_hash] | |
94 | else: | |
95 | commit = Commit(id_hash) | |
96 | __commits[id_hash] = commit | |
97 | return commit | |
98 | ||
41a6d859 CM |
99 | def get_conflicts(): |
100 | """Return the list of file conflicts | |
101 | """ | |
170f576b | 102 | conflicts_file = os.path.join(basedir.get(), 'conflicts') |
41a6d859 CM |
103 | if os.path.isfile(conflicts_file): |
104 | f = file(conflicts_file) | |
105 | names = [line.strip() for line in f.readlines()] | |
106 | f.close() | |
107 | return names | |
108 | else: | |
109 | return None | |
110 | ||
0d2cd1e4 | 111 | def _input(cmd, file_desc): |
741f2784 | 112 | p = popen2.Popen3(cmd, True) |
6fe6b1bd CM |
113 | while True: |
114 | line = file_desc.readline() | |
115 | if not line: | |
116 | break | |
0d2cd1e4 CM |
117 | p.tochild.write(line) |
118 | p.tochild.close() | |
119 | if p.wait(): | |
120 | raise GitException, '%s failed' % str(cmd) | |
121 | ||
d0bfda1a CM |
122 | def _input_str(cmd, string): |
123 | p = popen2.Popen3(cmd, True) | |
124 | p.tochild.write(string) | |
125 | p.tochild.close() | |
126 | if p.wait(): | |
127 | raise GitException, '%s failed' % str(cmd) | |
128 | ||
26dba451 | 129 | def _output(cmd): |
741f2784 | 130 | p=popen2.Popen3(cmd, True) |
7cc615f3 | 131 | output = p.fromchild.read() |
26dba451 BL |
132 | if p.wait(): |
133 | raise GitException, '%s failed' % str(cmd) | |
7cc615f3 | 134 | return output |
26dba451 | 135 | |
d3cf7d86 | 136 | def _output_one_line(cmd, file_desc = None): |
741f2784 | 137 | p=popen2.Popen3(cmd, True) |
d3cf7d86 PBG |
138 | if file_desc != None: |
139 | for line in file_desc: | |
140 | p.tochild.write(line) | |
141 | p.tochild.close() | |
7cc615f3 | 142 | output = p.fromchild.readline().strip() |
26dba451 BL |
143 | if p.wait(): |
144 | raise GitException, '%s failed' % str(cmd) | |
7cc615f3 | 145 | return output |
41a6d859 | 146 | |
26dba451 | 147 | def _output_lines(cmd): |
741f2784 | 148 | p=popen2.Popen3(cmd, True) |
26dba451 BL |
149 | lines = p.fromchild.readlines() |
150 | if p.wait(): | |
151 | raise GitException, '%s failed' % str(cmd) | |
152 | return lines | |
153 | ||
154 | def __run(cmd, args=None): | |
155 | """__run: runs cmd using spawnvp. | |
156 | ||
157 | Runs cmd using spawnvp. The shell is avoided so it won't mess up | |
158 | our arguments. If args is very large, the command is run multiple | |
159 | times; args is split xargs style: cmd is passed on each | |
160 | invocation. Unlike xargs, returns immediately if any non-zero | |
161 | return code is received. | |
162 | """ | |
163 | ||
164 | args_l=cmd.split() | |
165 | if args is None: | |
166 | args = [] | |
167 | for i in range(0, len(args)+1, 100): | |
168 | r=os.spawnvp(os.P_WAIT, args_l[0], args_l + args[i:min(i+100, len(args))]) | |
169 | if r: | |
170 | return r | |
171 | return 0 | |
172 | ||
9216b602 | 173 | def __tree_status(files = None, tree_id = 'HEAD', unknown = False, |
be24d874 | 174 | noexclude = True): |
41a6d859 CM |
175 | """Returns a list of pairs - [status, filename] |
176 | """ | |
f8fb5747 | 177 | refresh_index() |
41a6d859 | 178 | |
9216b602 CL |
179 | if not files: |
180 | files = [] | |
41a6d859 CM |
181 | cache_files = [] |
182 | ||
183 | # unknown files | |
184 | if unknown: | |
170f576b | 185 | exclude_file = os.path.join(basedir.get(), 'info', 'exclude') |
be24d874 CM |
186 | base_exclude = ['--exclude=%s' % s for s in |
187 | ['*.[ao]', '*.pyc', '.*', '*~', '#*', 'TAGS', 'tags']] | |
188 | base_exclude.append('--exclude-per-directory=.gitignore') | |
189 | ||
41a6d859 | 190 | if os.path.exists(exclude_file): |
3c6fbd2c | 191 | extra_exclude = ['--exclude-from=%s' % exclude_file] |
be24d874 CM |
192 | else: |
193 | extra_exclude = [] | |
4d4c0e3a PBG |
194 | if noexclude: |
195 | extra_exclude = base_exclude = [] | |
be24d874 | 196 | |
2c02c3b7 PBG |
197 | lines = _output_lines(['git-ls-files', '--others', '--directory'] |
198 | + base_exclude + extra_exclude) | |
26dba451 | 199 | cache_files += [('?', line.strip()) for line in lines] |
41a6d859 CM |
200 | |
201 | # conflicted files | |
202 | conflicts = get_conflicts() | |
203 | if not conflicts: | |
204 | conflicts = [] | |
205 | cache_files += [('C', filename) for filename in conflicts] | |
206 | ||
207 | # the rest | |
fec7f658 | 208 | for line in _output_lines(['git-diff-index', tree_id] + files): |
26dba451 | 209 | fs = tuple(line.rstrip().split(' ',4)[-1].split('\t',1)) |
41a6d859 CM |
210 | if fs[1] not in conflicts: |
211 | cache_files.append(fs) | |
41a6d859 CM |
212 | |
213 | return cache_files | |
214 | ||
215 | def local_changes(): | |
216 | """Return true if there are local changes in the tree | |
217 | """ | |
218 | return len(__tree_status()) != 0 | |
219 | ||
aa01a285 CM |
220 | # HEAD value cached |
221 | __head = None | |
222 | ||
41a6d859 | 223 | def get_head(): |
3097799d | 224 | """Verifies the HEAD and returns the SHA1 id that represents it |
41a6d859 | 225 | """ |
aa01a285 CM |
226 | global __head |
227 | ||
228 | if not __head: | |
229 | __head = rev_parse('HEAD') | |
230 | return __head | |
41a6d859 CM |
231 | |
232 | def get_head_file(): | |
233 | """Returns the name of the file pointed to by the HEAD link | |
234 | """ | |