Commit | Line | Data |
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41a6d859 CM |
1 | """Basic quilt-like functionality |
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 | ||
21 | import sys, os | |
22 | ||
23 | from stgit.utils import * | |
24 | from stgit import git | |
25 | from stgit.config import config | |
26 | ||
27 | ||
28 | # stack exception class | |
29 | class StackException(Exception): | |
30 | pass | |
31 | ||
6ad48e48 PBG |
32 | class FilterUntil: |
33 | def __init__(self): | |
34 | self.should_print = True | |
35 | def __call__(self, x, until_test, prefix): | |
36 | if until_test(x): | |
37 | self.should_print = False | |
38 | if self.should_print: | |
39 | return x[0:len(prefix)] != prefix | |
40 | return False | |
41 | ||
41a6d859 CM |
42 | # |
43 | # Functions | |
44 | # | |
45 | __comment_prefix = 'STG:' | |
6ad48e48 | 46 | __patch_prefix = 'STG_PATCH:' |
41a6d859 CM |
47 | |
48 | def __clean_comments(f): | |
49 | """Removes lines marked for status in a commit file | |
50 | """ | |
51 | f.seek(0) | |
52 | ||
53 | # remove status-prefixed lines | |
6ad48e48 PBG |
54 | lines = f.readlines() |
55 | ||
56 | patch_filter = FilterUntil() | |
57 | until_test = lambda t: t == (__patch_prefix + '\n') | |
58 | lines = [l for l in lines if patch_filter(l, until_test, __comment_prefix)] | |
59 | ||
41a6d859 CM |
60 | # remove empty lines at the end |
61 | while len(lines) != 0 and lines[-1] == '\n': | |
62 | del lines[-1] | |
63 | ||
64 | f.seek(0); f.truncate() | |
65 | f.writelines(lines) | |
66 | ||
6ad48e48 | 67 | def edit_file(series, string, comment, show_patch = True): |
41a6d859 CM |
68 | fname = '.stgit.msg' |
69 | tmpl = os.path.join(git.base_dir, 'patchdescr.tmpl') | |
70 | ||
71 | f = file(fname, 'w+') | |
72 | if string: | |
73 | print >> f, string | |
74 | elif os.path.isfile(tmpl): | |
75 | print >> f, file(tmpl).read().rstrip() | |
76 | else: | |
77 | print >> f | |
78 | print >> f, __comment_prefix, comment | |
79 | print >> f, __comment_prefix, \ | |
80 | 'Lines prefixed with "%s" will be automatically removed.' \ | |
81 | % __comment_prefix | |
82 | print >> f, __comment_prefix, \ | |
83 | 'Trailing empty lines will be automatically removed.' | |
6ad48e48 PBG |
84 | |
85 | if show_patch: | |
86 | print >> f, __patch_prefix | |
87 | # series.get_patch(series.get_current()).get_top() | |
88 | git.diff([], series.get_patch(series.get_current()).get_bottom(), None, f) | |
89 | ||
90 | #Vim modeline must be near the end. | |
91 | print >> f, __comment_prefix, 'vi: set textwidth=75 filetype=diff:' | |
41a6d859 CM |
92 | f.close() |
93 | ||
94 | # the editor | |
cd076ff6 CL |
95 | if config.has_option('stgit', 'editor'): |
96 | editor = config.get('stgit', 'editor') | |
97 | elif 'EDITOR' in os.environ: | |
41a6d859 CM |
98 | editor = os.environ['EDITOR'] |
99 | else: | |
100 | editor = 'vi' | |
101 | editor += ' %s' % fname | |
102 | ||
103 | print 'Invoking the editor: "%s"...' % editor, | |
104 | sys.stdout.flush() | |
105 | print 'done (exit code: %d)' % os.system(editor) | |
106 | ||
107 | f = file(fname, 'r+') | |
108 | ||
109 | __clean_comments(f) | |
110 | f.seek(0) | |
111 | string = f.read() | |
112 | ||
113 | f.close() | |
114 | os.remove(fname) | |
115 | ||
116 | return string | |
117 | ||
118 | # | |
119 | # Classes | |
120 | # | |
121 | ||
122 | class Patch: | |
123 | """Basic patch implementation | |
124 | """ | |
125 | def __init__(self, name, patch_dir): | |
126 | self.__patch_dir = patch_dir | |
127 | self.__name = name | |
128 | self.__dir = os.path.join(self.__patch_dir, self.__name) | |
129 | ||
130 | def create(self): | |
131 | os.mkdir(self.__dir) | |
132 | create_empty_file(os.path.join(self.__dir, 'bottom')) | |
133 | create_empty_file(os.path.join(self.__dir, 'top')) | |
134 | ||
135 | def delete(self): | |
136 | for f in os.listdir(self.__dir): | |
137 | os.remove(os.path.join(self.__dir, f)) | |
138 | os.rmdir(self.__dir) | |
139 | ||
140 | def get_name(self): | |
141 | return self.__name | |
142 | ||
e55b53e0 CM |
143 | def rename(self, newname): |
144 | olddir = self.__dir | |
145 | self.__name = newname | |
146 | self.__dir = os.path.join(self.__patch_dir, self.__name) | |
147 | ||
148 | os.rename(olddir, self.__dir) | |
149 | ||
41a6d859 CM |
150 | def __get_field(self, name, multiline = False): |
151 | id_file = os.path.join(self.__dir, name) | |
152 | if os.path.isfile(id_file): | |
153 | string = read_string(id_file, multiline) | |
154 | if string == '': | |
155 | return None | |
156 | else: | |
157 | return string | |
158 | else: | |
159 | return None | |
160 | ||
161 | def __set_field(self, name, string, multiline = False): | |
162 | fname = os.path.join(self.__dir, name) | |
163 | if string and string != '': | |
164 | write_string(fname, string, multiline) | |
165 | elif os.path.isfile(fname): | |
166 | os.remove(fname) | |
167 | ||
168 | def get_bottom(self): | |
169 | return self.__get_field('bottom') | |
170 | ||
171 | def set_bottom(self, string, backup = False): | |
172 | if backup: | |
a5bbc44d PBG |
173 | curr = self.__get_field('bottom') |
174 | if curr != string: | |
175 | self.__set_field('bottom.old', curr) | |
176 | else: | |
177 | self.__set_field('bottom.old', None) | |
41a6d859 CM |
178 | self.__set_field('bottom', string) |
179 | ||
180 | def get_top(self): | |
181 | return self.__get_field('top') | |
182 | ||
183 | def set_top(self, string, backup = False): | |
184 | if backup: | |
a5bbc44d PBG |
185 | curr = self.__get_field('top') |
186 | if curr != string: | |
187 | self.__set_field('top.old', curr) | |
188 | else: | |
189 | self.__set_field('top.old', None) | |
41a6d859 CM |
190 | self.__set_field('top', string) |
191 | ||
192 | def restore_old_boundaries(self): | |
193 | bottom = self.__get_field('bottom.old') | |
194 | top = self.__get_field('top.old') | |
195 | ||
196 | if top and bottom: | |
197 | self.__set_field('bottom', bottom) | |
198 | self.__set_field('top', top) | |
a5bbc44d | 199 | return True |
41a6d859 | 200 | else: |
a5bbc44d | 201 | return False |
41a6d859 CM |
202 | |
203 | def get_description(self): | |
204 | return self.__get_field('description', True) | |
205 | ||
206 | def set_description(self, string): | |
207 | self.__set_field('description', string, True) | |
208 | ||
209 | def get_authname(self): | |
210 | return self.__get_field('authname') | |
211 | ||
212 | def set_authname(self, string): | |
213 | if not string and config.has_option('stgit', 'authname'): | |
214 | string = config.get('stgit', 'authname') | |
215 | self.__set_field('authname', string) | |
216 | ||
217 | def get_authemail(self): | |
218 | return self.__get_field('authemail') | |
219 | ||
220 | def set_authemail(self, string): | |
221 | if not string and config.has_option('stgit', 'authemail'): | |
222 | string = config.get('stgit', 'authemail') | |
223 | self.__set_field('authemail', string) | |
224 | ||
225 | def get_authdate(self): | |
226 | return self.__get_field('authdate') | |
227 | ||
228 | def set_authdate(self, string): | |
229 | self.__set_field('authdate', string) | |
230 | ||
231 | def get_commname(self): | |
232 | return self.__get_field('commname') | |
233 | ||
234 | def set_commname(self, string): | |
235 | if not string and config.has_option('stgit', 'commname'): | |
236 | string = config.get('stgit', 'commname') | |
237 | self.__set_field('commname', string) | |
238 | ||
239 | def get_commemail(self): | |
240 | return self.__get_field('commemail') | |
241 | ||
242 | def set_commemail(self, string): | |
243 | if not string and config.has_option('stgit', 'commemail'): | |
244 | string = config.get('stgit', 'commemail') | |
245 | self.__set_field('commemail', string) | |
246 | ||
247 | ||
248 | class Series: | |
249 | """Class including the operations on series | |
250 | """ | |
251 | def __init__(self, name = None): | |
40e65b92 | 252 | """Takes a series name as the parameter. |
41a6d859 CM |
253 | """ |
254 | if name: | |
255 | self.__name = name | |
256 | else: | |
257 | self.__name = git.get_head_file() | |
258 | ||
259 | if self.__name: | |
260 | self.__patch_dir = os.path.join(git.base_dir, 'patches', | |
261 | self.__name) | |
262 | self.__base_file = os.path.join(git.base_dir, 'refs', 'bases', | |
263 | self.__name) | |
264 | self.__applied_file = os.path.join(self.__patch_dir, 'applied') | |
265 | self.__unapplied_file = os.path.join(self.__patch_dir, 'unapplied') | |
266 | self.__current_file = os.path.join(self.__patch_dir, 'current') | |
c1fe1f99 | 267 | self.__descr_file = os.path.join(self.__patch_dir, 'description') |
41a6d859 | 268 | |
629ddd02 CM |
269 | def get_branch(self): |
270 | """Return the branch name for the Series object | |
271 | """ | |
272 | return self.__name | |
273 | ||
41a6d859 CM |
274 | def __set_current(self, name): |
275 | """Sets the topmost patch | |
276 | """ | |
277 | if name: | |
278 | write_string(self.__current_file, name) | |
279 | else: | |
280 | create_empty_file(self.__current_file) | |
281 | ||
282 | def get_patch(self, name): | |
283 | """Return a Patch object for the given name | |
284 | """ | |
285 | return Patch(name, self.__patch_dir) | |
286 | ||
287 | def get_current(self): | |
288 | """Return a Patch object representing the topmost patch | |
289 | """ | |
290 | if os.path.isfile(self.__current_file): | |
291 | name = read_string(self.__current_file) | |
292 | else: | |
293 | return None | |
294 | if name == '': | |
295 | return None | |
296 | else: | |
297 | return name | |
298 | ||
299 | def get_applied(self): | |
40e65b92 | 300 | if not os.path.isfile(self.__applied_file): |
a2dcde71 | 301 | raise StackException, 'Branch "%s" not initialised' % self.__name |
41a6d859 CM |
302 | f = file(self.__applied_file) |
303 | names = [line.strip() for line in f.readlines()] | |
304 | f.close() | |
305 | return names | |
306 | ||
307 | def get_unapplied(self): | |
40e65b92 | 308 | if not os.path.isfile(self.__unapplied_file): |
a2dcde71 | 309 | raise StackException, 'Branch "%s" not initialised' % self.__name |
41a6d859 CM |
310 | f = file(self.__unapplied_file) |
311 | names = [line.strip() for line in f.readlines()] | |
312 | f.close() | |
313 | return names | |
314 | ||
315 | def get_base_file(self): | |
316 | return self.__base_file | |
317 | ||
0b4b9499 CL |
318 | def get_protected(self): |
319 | return os.path.isfile(os.path.join(self.__patch_dir, 'protected')) | |
320 | ||
321 | def protect(self): | |
322 | protect_file = os.path.join(self.__patch_dir, 'protected') | |
323 | if not os.path.isfile(protect_file): | |
324 | create_empty_file(protect_file) | |
325 | ||
326 | def unprotect(self): | |
327 | protect_file = os.path.join(self.__patch_dir, 'protected') | |
328 | if os.path.isfile(protect_file): | |
329 | os.remove(protect_file) | |
330 | ||
c1fe1f99 CL |
331 | def get_description(self): |
332 | if os.path.isfile(self.__descr_file): | |
333 | return read_string(self.__descr_file) | |
334 | else: | |
335 | return '' | |
336 | ||
41a6d859 CM |
337 | def __patch_is_current(self, patch): |
338 | return patch.get_name() == read_string(self.__current_file) | |
339 | ||
340 | def __patch_applied(self, name): | |
341 | """Return true if the patch exists in the applied list | |
342 | """ | |
343 | return name in self.get_applied() | |
344 | ||
345 | def __patch_unapplied(self, name): | |
346 | """Return true if the patch exists in the unapplied list | |
347 | """ | |
348 | return name in self.get_unapplied() | |
349 | ||
350 | def __begin_stack_check(self): | |
351 | """Save the current HEAD into .git/refs/heads/base if the stack | |
352 | is empty | |
353 | """ | |
354 | if len(self.get_applied()) == 0: | |
355 | head = git.get_head() | |
41a6d859 CM |
356 | write_string(self.__base_file, head) |
357 | ||
358 | def __end_stack_check(self): | |
f338c3c0 CM |
359 | """Remove .git/refs/heads/base if the stack is empty. |
360 | This warning should never happen | |
41a6d859 | 361 | """ |
f338c3c0 CM |
362 | if len(self.get_applied()) == 0 \ |
363 | and read_string(self.__base_file) != git.get_head(): | |
364 | print 'Warning: stack empty but the HEAD and base are different' | |
41a6d859 CM |
365 | |
366 | def head_top_equal(self): | |
367 | """Return true if the head and the top are the same | |
368 | """ | |
369 | crt = self.get_current() | |
370 | if not crt: | |
371 | # we don't care, no patches applied | |
372 | return True | |
373 | return git.get_head() == Patch(crt, self.__patch_dir).get_top() | |
374 | ||
375 | def init(self): | |
376 | """Initialises the stgit series | |
377 | """ | |
378 | bases_dir = os.path.join(git.base_dir, 'refs', 'bases') | |
379 | ||
380 | if os.path.isdir(self.__patch_dir): | |
381 | raise StackException, self.__patch_dir + ' already exists' | |
382 | os.makedirs(self.__patch_dir) | |
383 | ||
384 | if not os.path.isdir(bases_dir): | |
385 | os.makedirs(bases_dir) | |
386 | ||
387 | create_empty_file(self.__applied_file) | |
388 | create_empty_file(self.__unapplied_file) | |
c1fe1f99 | 389 | create_empty_file(self.__descr_file) |
6872f46b | 390 | self.__begin_stack_check() |
41a6d859 | 391 | |
fc804a49 CL |
392 | def delete(self, force = False): |
393 | """Deletes an stgit series | |
394 | """ | |
395 | if os.path.isdir(self.__patch_dir): | |
396 | patches = self.get_unapplied() + self.get_applied() | |
397 | if not force and patches: | |
398 | raise StackException, \ | |
399 | 'Cannot delete: the series still contains patches' | |
400 | patches.reverse() | |
401 | for p in patches: | |
402 | self.delete_patch(p) | |
403 | ||
404 | if os.path.isfile(self.__applied_file): | |
405 | os.remove(self.__applied_file) | |
406 | if os.path.isfile(self.__unapplied_file): | |
407 | os.remove(self.__unapplied_file) | |
408 | if os.path.isfile(self.__current_file): | |
409 | os.remove(self.__current_file) | |
c1fe1f99 CL |
410 | if os.path.isfile(self.__descr_file): |
411 | os.remove(self.__descr_file) | |
fc804a49 CL |
412 | if not os.listdir(self.__patch_dir): |
413 | os.rmdir(self.__patch_dir) | |
414 | else: | |
415 | print 'Series directory %s is not empty.' % self.__name | |
416 | ||
417 | if os.path.isfile(self.__base_file): | |
418 | os.remove(self.__base_file) | |
419 | ||
6ad48e48 PBG |
420 | def refresh_patch(self, message = None, edit = False, show_patch = False, |
421 | cache_update = True, | |
41a6d859 CM |
422 | author_name = None, author_email = None, |
423 | author_date = None, | |
84fcbc3b | 424 | committer_name = None, committer_email = None): |
41a6d859 CM |
425 | """Generates a new commit for the given patch |
426 | """ | |
427 | name = self.get_current() | |
428 | if not name: | |
429 | raise StackException, 'No patches applied' | |
430 | ||
431 | patch = Patch(name, self.__patch_dir) | |
432 | ||
433 | descr = patch.get_description() | |
434 | if not (message or descr): | |
435 | edit = True | |
436 | descr = '' | |
437 | elif message: | |
438 | descr = message | |
439 | ||
440 | if not message and edit: | |
6ad48e48 | 441 | descr = edit_file(self, descr.rstrip(), \ |
41a6d859 | 442 | 'Please edit the description for patch "%s" ' \ |
6ad48e48 | 443 | 'above.' % name, show_patch) |
41a6d859 CM |
444 | |
445 | if not author_name: | |
446 | author_name = patch.get_authname() | |
447 | if not author_email: | |
448 | author_email = patch.get_authemail() | |
449 | if not author_date: | |
450 | author_date = patch.get_authdate() | |
451 | if not committer_name: | |
452 | committer_name = patch.get_commname() | |
453 | if not committer_email: | |
454 | committer_email = patch.get_commemail() | |
455 | ||
456 | commit_id = git.commit(message = descr, parents = [patch.get_bottom()], | |
402ad990 | 457 | cache_update = cache_update, |
41a6d859 CM |
458 | allowempty = True, |
459 | author_name = author_name, | |
460 | author_email = author_email, | |
461 | author_date = author_date, | |
462 | committer_name = committer_name, | |
463 | committer_email = committer_email) | |
464 | ||
84fcbc3b CM |
465 | patch.set_top(commit_id) |
466 | patch.set_description(descr) | |
467 | patch.set_authname(author_name) | |
468 | patch.set_authemail(author_email) | |
469 | patch.set_authdate(author_date) | |
470 | patch.set_commname(committer_name) | |
471 | patch.set_commemail(committer_email) | |
c14444b9 CM |
472 | |
473 | return commit_id | |
41a6d859 | 474 | |
37a4d1bf CM |
475 | def new_patch(self, name, message = None, can_edit = True, |
476 | unapplied = False, show_patch = False, | |
477 | top = None, bottom = None, | |
41a6d859 CM |
478 | author_name = None, author_email = None, author_date = None, |
479 | committer_name = None, committer_email = None): | |
480 | """Creates a new patch | |
481 | """ | |
482 | if self.__patch_applied(name) or self.__patch_unapplied(name): | |
483 | raise StackException, 'Patch "%s" already exists' % name | |
484 | ||
95742cfc | 485 | if not message and can_edit: |
6ad48e48 | 486 | descr = edit_file(self, None, \ |
41a6d859 | 487 | 'Please enter the description for patch "%s" ' \ |
6ad48e48 | 488 | 'above.' % name, show_patch) |
4de718c3 BL |
489 | else: |
490 | descr = message | |
41a6d859 CM |
491 | |
492 | head = git.get_head() | |
493 | ||
494 | self.__begin_stack_check() | |
495 | ||
496 | patch = Patch(name, self.__patch_dir) | |
497 | patch.create() | |
37a4d1bf CM |
498 | |
499 | if bottom: | |
500 | patch.set_bottom(bottom) | |
501 | else: | |
502 | patch.set_bottom(head) | |
503 | if top: | |
504 | patch.set_top(top) | |
505 | else: | |
506 | patch.set_top(head) | |
507 | ||
41a6d859 CM |
508 | patch.set_description(descr) |
509 | patch.set_authname(author_name) | |
510 | patch.set_authemail(author_email) | |
511 | patch.set_authdate(author_date) | |
512 | patch.set_commname(committer_name) | |
513 | patch.set_commemail(committer_email) | |
514 | ||
37a4d1bf CM |
515 | if unapplied: |
516 | patches = [patch.get_name()] + self.get_unapplied() | |
517 | ||
518 | f = file(self.__unapplied_file, 'w+') | |
519 | f.writelines([line + '\n' for line in patches]) | |
520 | f.close() | |
521 | else: | |
522 | append_string(self.__applied_file, patch.get_name()) | |
523 | self.__set_current(name) | |
41a6d859 CM |
524 | |
525 | def delete_patch(self, name): | |
526 | """Deletes a patch | |
527 | """ | |
528 | patch = Patch(name, self.__patch_dir) | |
529 | ||
530 | if self.__patch_is_current(patch): | |
531 | self.pop_patch(name) | |
532 | elif self.__patch_applied(name): | |
533 | raise StackException, 'Cannot remove an applied patch, "%s", ' \ | |
534 | 'which is not current' % name | |
535 | elif not name in self.get_unapplied(): | |
536 | raise StackException, 'Unknown patch "%s"' % name | |
537 | ||
538 | patch.delete() | |
539 | ||
540 | unapplied = self.get_unapplied() | |
541 | unapplied.remove(name) | |
542 | f = file(self.__unapplied_file, 'w+') | |
543 | f.writelines([line + '\n' for line in unapplied]) | |
544 | f.close() | |
545 | ||
680e3a32 PBG |
546 | def forward_patches(self, names): |
547 | """Try to fast-forward an array of patches. | |
548 | ||
549 | On return, patches in names[0:returned_value] have been pushed on the | |
550 | stack. Apply the rest with push_patch | |
551 | """ | |
552 | unapplied = self.get_unapplied() | |
553 | self.__begin_stack_check() | |
554 | ||
555 | forwarded = 0 | |
556 | top = git.get_head() | |
557 | ||
558 | for name in names: | |
559 | assert(name in unapplied) | |
560 | ||
561 | patch = Patch(name, self.__patch_dir) | |
562 | ||
563 | head = top | |
564 | bottom = patch.get_bottom() | |
565 | top = patch.get_top() | |
566 | ||
567 | # top != bottom always since we have a commit for each patch | |
568 | if head == bottom: | |
569 | # reset the backup information | |
d3cf7d86 | 570 | patch.set_bottom(head, backup = True) |
680e3a32 PBG |
571 | patch.set_top(top, backup = True) |
572 | ||
573 | else: | |
d3cf7d86 PBG |
574 | head_tree = git.get_commit(head).get_tree() |
575 | bottom_tree = git.get_commit(bottom).get_tree() | |
576 | if head_tree == bottom_tree: | |
577 | # We must just reparent this patch and create a new commit | |
578 | # for it | |
579 | descr = patch.get_description() | |
580 | author_name = patch.get_authname() | |
581 | author_email = patch.get_authemail() | |
582 | author_date = patch.get_authdate() | |
583 | committer_name = patch.get_commname() | |
584 | committer_email = patch.get_commemail() | |
585 | ||
586 | top_tree = git.get_commit(top).get_tree() | |
587 | ||
588 | top = git.commit(message = descr, parents = [head], | |
589 | cache_update = False, | |
590 | tree_id = top_tree, | |
591 | allowempty = True, | |
592 | author_name = author_name, | |
593 | author_email = author_email, | |
594 | author_date = author_date, | |
595 | committer_name = committer_name, | |
596 | committer_email = committer_email) | |
597 | ||
598 | patch.set_bottom(head, backup = True) | |
599 | patch.set_top(top, backup = True) | |
600 | else: | |
601 | top = head | |
602 | # stop the fast-forwarding, must do a real merge | |
603 | break | |
680e3a32 PBG |
604 | |
605 | forwarded+=1 | |
606 | unapplied.remove(name) | |
607 | ||
608 | git.switch(top) | |
609 | ||
610 | append_strings(self.__applied_file, names[0:forwarded]) | |
611 | ||
612 | f = file(self.__unapplied_file, 'w+') | |
613 | f.writelines([line + '\n' for line in unapplied]) | |
614 | f.close() | |
615 | ||
616 | self.__set_current(name) | |
617 | ||
618 | return forwarded | |
619 | ||
41a6d859 CM |
620 | def push_patch(self, name): |
621 | """Pushes a patch on the stack | |
622 | """ | |
623 | unapplied = self.get_unapplied() | |
624 | assert(name in unapplied) | |
625 | ||
626 | self.__begin_stack_check() | |
627 | ||
628 | patch = Patch(name, self.__patch_dir) | |
629 | ||
630 | head = git.get_head() | |
631 | bottom = patch.get_bottom() | |
632 | top = patch.get_top() | |
633 | ||
634 | ex = None | |
635 | ||
636 | # top != bottom always since we have a commit for each patch | |
637 | if head == bottom: | |
638 | # reset the backup information | |
639 | patch.set_bottom(bottom, backup = True) | |
640 | patch.set_top(top, backup = True) | |
641 | ||
642 | git.switch(top) | |
643 | else: | |
644 | # new patch needs to be refreshed. | |
645 | # The current patch is empty after merge. | |
646 | patch.set_bottom(head, backup = True) | |
647 | patch.set_top(head, backup = True) | |
575a7e7c CM |
648 | |
649 | # Try the fast applying first. If this fails, fall back to the | |
650 | # three-way merge | |
651 | if not git.apply_diff(bottom, top): | |
652 | # merge can fail but the patch needs to be pushed | |
653 | try: | |
654 | git.merge(bottom, head, top) | |
655 | except git.GitException, ex: | |
656 | print >> sys.stderr, \ | |
657 | 'The merge failed during "push". ' \ | |
658 | 'Use "refresh" after fixing the conflicts' | |
41a6d859 CM |
659 | |
660 | append_string(self.__applied_file, name) | |
661 | ||
662 | unapplied.remove(name) | |
663 | f = file(self.__unapplied_file, 'w+') | |
664 | f.writelines([line + '\n' for line in unapplied]) | |
665 | f.close() | |
666 | ||
667 | self.__set_current(name) | |
668 | ||
a322940b CM |
669 | # head == bottom case doesn't need to refresh the patch |
670 | if head != bottom: | |
671 | if not ex: | |
672 | # if the merge was OK and no conflicts, just refresh the patch | |
402ad990 CM |
673 | # The GIT cache was already updated by the merge operation |
674 | self.refresh_patch(cache_update = False) | |
a322940b CM |
675 | else: |
676 | raise StackException, str(ex) | |
41a6d859 CM |
677 | |
678 | def undo_push(self): | |
679 | name = self.get_current() | |
680 | assert(name) | |
681 | ||
682 | patch = Patch(name, self.__patch_dir) | |
05d593c0 | 683 | git.reset() |
41a6d859 | 684 | self.pop_patch(name) |
a5bbc44d | 685 | return patch.restore_old_boundaries() |
41a6d859 CM |
686 | |
687 | def pop_patch(self, name): | |
688 | """Pops the top patch from the stack | |
689 | """ | |
690 | applied = self.get_applied() | |
691 | applied.reverse() | |
692 | assert(name in applied) | |
693 | ||
694 | patch = Patch(name, self.__patch_dir) | |
695 | ||
696 | git.switch(patch.get_bottom()) | |
697 | ||
698 | # save the new applied list | |
699 | idx = applied.index(name) + 1 | |
700 | ||
701 | popped = applied[:idx] | |
702 | popped.reverse() | |
703 | unapplied = popped + self.get_unapplied() | |
704 | ||
705 | f = file(self.__unapplied_file, 'w+') | |
706 | f.writelines([line + '\n' for line in unapplied]) | |
707 | f.close() | |
708 | ||
709 | del applied[:idx] | |
710 | applied.reverse() | |
711 | ||
712 | f = file(self.__applied_file, 'w+') | |
713 | f.writelines([line + '\n' for line in applied]) | |
714 | f.close() | |
715 | ||
716 | if applied == []: | |
717 | self.__set_current(None) | |
718 | else: | |
719 | self.__set_current(applied[-1]) | |
720 | ||
721 | self.__end_stack_check() | |
722 | ||
723 | def empty_patch(self, name): | |
724 | """Returns True if the patch is empty | |
725 | """ | |
726 | patch = Patch(name, self.__patch_dir) | |
727 | bottom = patch.get_bottom() | |
728 | top = patch.get_top() | |
729 | ||
730 | if bottom == top: | |
731 | return True | |
8e29bcd2 CM |
732 | elif git.get_commit(top).get_tree() \ |
733 | == git.get_commit(bottom).get_tree(): | |
41a6d859 CM |
734 | return True |
735 | ||
736 | return False | |
e55b53e0 CM |
737 | |
738 | def rename_patch(self, oldname, newname): | |
739 | applied = self.get_applied() | |
740 | unapplied = self.get_unapplied() | |
741 | ||
742 | if newname in applied or newname in unapplied: | |
743 | raise StackException, 'Patch "%s" already exists' % newname | |
744 | ||
745 | if oldname in unapplied: | |
746 | Patch(oldname, self.__patch_dir).rename(newname) | |
747 | unapplied[unapplied.index(oldname)] = newname | |
748 | ||
749 | f = file(self.__unapplied_file, 'w+') | |
750 | f.writelines([line + '\n' for line in unapplied]) | |
751 | f.close() | |
752 | elif oldname in applied: | |
753 | Patch(oldname, self.__patch_dir).rename(newname) | |
754 | if oldname == self.get_current(): | |
755 | self.__set_current(newname) | |
756 | ||
757 | applied[applied.index(oldname)] = newname | |
758 | ||
759 | f = file(self.__applied_file, 'w+') | |
760 | f.writelines([line + '\n' for line in applied]) | |
761 | f.close() | |
762 | else: | |
763 | raise StackException, 'Unknown patch "%s"' % oldname |