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Commit | Line | Data |
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ae563542 LT |
1 | #include "cache.h" |
2 | #include "tag.h" | |
3 | #include "blob.h" | |
4 | #include "tree.h" | |
5 | #include "commit.h" | |
a4a88b2b | 6 | #include "diff.h" |
ae563542 LT |
7 | #include "refs.h" |
8 | #include "revision.h" | |
8ecae9b0 | 9 | #include "grep.h" |
ae563542 LT |
10 | |
11 | static char *path_name(struct name_path *path, const char *name) | |
12 | { | |
13 | struct name_path *p; | |
14 | char *n, *m; | |
15 | int nlen = strlen(name); | |
16 | int len = nlen + 1; | |
17 | ||
18 | for (p = path; p; p = p->up) { | |
19 | if (p->elem_len) | |
20 | len += p->elem_len + 1; | |
21 | } | |
22 | n = xmalloc(len); | |
23 | m = n + len - (nlen + 1); | |
24 | strcpy(m, name); | |
25 | for (p = path; p; p = p->up) { | |
26 | if (p->elem_len) { | |
27 | m -= p->elem_len + 1; | |
28 | memcpy(m, p->elem, p->elem_len); | |
29 | m[p->elem_len] = '/'; | |
30 | } | |
31 | } | |
32 | return n; | |
33 | } | |
34 | ||
1f1e895f LT |
35 | void add_object(struct object *obj, |
36 | struct object_array *p, | |
37 | struct name_path *path, | |
38 | const char *name) | |
ae563542 | 39 | { |
1f1e895f | 40 | add_object_array(obj, path_name(path, name), p); |
ae563542 LT |
41 | } |
42 | ||
43 | static void mark_blob_uninteresting(struct blob *blob) | |
44 | { | |
45 | if (blob->object.flags & UNINTERESTING) | |
46 | return; | |
47 | blob->object.flags |= UNINTERESTING; | |
48 | } | |
49 | ||
50 | void mark_tree_uninteresting(struct tree *tree) | |
51 | { | |
f75e53ed | 52 | struct tree_desc desc; |
4c068a98 | 53 | struct name_entry entry; |
ae563542 | 54 | struct object *obj = &tree->object; |
ae563542 LT |
55 | |
56 | if (obj->flags & UNINTERESTING) | |
57 | return; | |
58 | obj->flags |= UNINTERESTING; | |
59 | if (!has_sha1_file(obj->sha1)) | |
60 | return; | |
61 | if (parse_tree(tree) < 0) | |
62 | die("bad tree %s", sha1_to_hex(obj->sha1)); | |
f75e53ed LT |
63 | |
64 | desc.buf = tree->buffer; | |
65 | desc.size = tree->size; | |
4c068a98 LT |
66 | while (tree_entry(&desc, &entry)) { |
67 | if (S_ISDIR(entry.mode)) | |
68 | mark_tree_uninteresting(lookup_tree(entry.sha1)); | |
ae563542 | 69 | else |
4c068a98 | 70 | mark_blob_uninteresting(lookup_blob(entry.sha1)); |
ae563542 | 71 | } |
f75e53ed LT |
72 | |
73 | /* | |
74 | * We don't care about the tree any more | |
75 | * after it has been marked uninteresting. | |
76 | */ | |
77 | free(tree->buffer); | |
78 | tree->buffer = NULL; | |
ae563542 LT |
79 | } |
80 | ||
81 | void mark_parents_uninteresting(struct commit *commit) | |
82 | { | |
83 | struct commit_list *parents = commit->parents; | |
84 | ||
85 | while (parents) { | |
86 | struct commit *commit = parents->item; | |
d2c4af73 MU |
87 | if (!(commit->object.flags & UNINTERESTING)) { |
88 | commit->object.flags |= UNINTERESTING; | |
ae563542 | 89 | |
d2c4af73 MU |
90 | /* |
91 | * Normally we haven't parsed the parent | |
92 | * yet, so we won't have a parent of a parent | |
93 | * here. However, it may turn out that we've | |
94 | * reached this commit some other way (where it | |
95 | * wasn't uninteresting), in which case we need | |
96 | * to mark its parents recursively too.. | |
97 | */ | |
98 | if (commit->parents) | |
99 | mark_parents_uninteresting(commit); | |
100 | } | |
ae563542 LT |
101 | |
102 | /* | |
103 | * A missing commit is ok iff its parent is marked | |
104 | * uninteresting. | |
105 | * | |
106 | * We just mark such a thing parsed, so that when | |
107 | * it is popped next time around, we won't be trying | |
108 | * to parse it and get an error. | |
109 | */ | |
110 | if (!has_sha1_file(commit->object.sha1)) | |
111 | commit->object.parsed = 1; | |
112 | parents = parents->next; | |
113 | } | |
114 | } | |
115 | ||
1f1e895f | 116 | void add_pending_object(struct rev_info *revs, struct object *obj, const char *name) |
ae563542 | 117 | { |
1f1e895f | 118 | add_object_array(obj, name, &revs->pending); |
ae563542 LT |
119 | } |
120 | ||
cd2bdc53 | 121 | static struct object *get_reference(struct rev_info *revs, const char *name, const unsigned char *sha1, unsigned int flags) |
ae563542 LT |
122 | { |
123 | struct object *object; | |
124 | ||
125 | object = parse_object(sha1); | |
126 | if (!object) | |
127 | die("bad object %s", name); | |
cd2bdc53 LT |
128 | object->flags |= flags; |
129 | return object; | |
130 | } | |
131 | ||
132 | static struct commit *handle_commit(struct rev_info *revs, struct object *object, const char *name) | |
133 | { | |
134 | unsigned long flags = object->flags; | |
ae563542 LT |
135 | |
136 | /* | |
137 | * Tag object? Look what it points to.. | |
138 | */ | |
1974632c | 139 | while (object->type == OBJ_TAG) { |
ae563542 | 140 | struct tag *tag = (struct tag *) object; |
cd2bdc53 | 141 | if (revs->tag_objects && !(flags & UNINTERESTING)) |
ae563542 LT |
142 | add_pending_object(revs, object, tag->tag); |
143 | object = parse_object(tag->tagged->sha1); | |
144 | if (!object) | |
145 | die("bad object %s", sha1_to_hex(tag->tagged->sha1)); | |
146 | } | |
147 | ||
148 | /* | |
149 | * Commit object? Just return it, we'll do all the complex | |
150 | * reachability crud. | |
151 | */ | |
1974632c | 152 | if (object->type == OBJ_COMMIT) { |
ae563542 | 153 | struct commit *commit = (struct commit *)object; |
ae563542 LT |
154 | if (parse_commit(commit) < 0) |
155 | die("unable to parse commit %s", name); | |
d9a83684 | 156 | if (flags & UNINTERESTING) { |
4262c1b0 | 157 | commit->object.flags |= UNINTERESTING; |
ae563542 | 158 | mark_parents_uninteresting(commit); |
d9a83684 LT |
159 | revs->limited = 1; |
160 | } | |
ae563542 LT |
161 | return commit; |
162 | } | |
163 | ||
164 | /* | |
165 | * Tree object? Either mark it uniniteresting, or add it | |
166 | * to the list of objects to look at later.. | |
167 | */ | |
1974632c | 168 | if (object->type == OBJ_TREE) { |
ae563542 LT |
169 | struct tree *tree = (struct tree *)object; |
170 | if (!revs->tree_objects) | |
171 | return NULL; | |
172 | if (flags & UNINTERESTING) { | |
173 | mark_tree_uninteresting(tree); | |
174 | return NULL; | |
175 | } | |
176 | add_pending_object(revs, object, ""); | |
177 | return NULL; | |
178 | } | |
179 | ||
180 | /* | |
181 | * Blob object? You know the drill by now.. | |
182 | */ | |
1974632c | 183 | if (object->type == OBJ_BLOB) { |
ae563542 LT |
184 | struct blob *blob = (struct blob *)object; |
185 | if (!revs->blob_objects) | |
186 | return NULL; | |
187 | if (flags & UNINTERESTING) { | |
188 | mark_blob_uninteresting(blob); | |
189 | return NULL; | |
190 | } | |
191 | add_pending_object(revs, object, ""); | |
192 | return NULL; | |
193 | } | |
194 | die("%s is unknown object", name); | |
195 | } | |
196 | ||
a4a88b2b LT |
197 | static int everybody_uninteresting(struct commit_list *orig) |
198 | { | |
199 | struct commit_list *list = orig; | |
200 | while (list) { | |
201 | struct commit *commit = list->item; | |
202 | list = list->next; | |
203 | if (commit->object.flags & UNINTERESTING) | |
204 | continue; | |
205 | return 0; | |
206 | } | |
207 | return 1; | |
208 | } | |
209 | ||
8efdc326 | 210 | static int tree_difference = REV_TREE_SAME; |
a4a88b2b LT |
211 | |
212 | static void file_add_remove(struct diff_options *options, | |
213 | int addremove, unsigned mode, | |
214 | const unsigned char *sha1, | |
215 | const char *base, const char *path) | |
216 | { | |
8efdc326 | 217 | int diff = REV_TREE_DIFFERENT; |
a4a88b2b LT |
218 | |
219 | /* | |
8efdc326 FK |
220 | * Is it an add of a new file? It means that the old tree |
221 | * didn't have it at all, so we will turn "REV_TREE_SAME" -> | |
222 | * "REV_TREE_NEW", but leave any "REV_TREE_DIFFERENT" alone | |
223 | * (and if it already was "REV_TREE_NEW", we'll keep it | |
224 | * "REV_TREE_NEW" of course). | |
a4a88b2b LT |
225 | */ |
226 | if (addremove == '+') { | |
227 | diff = tree_difference; | |
8efdc326 | 228 | if (diff != REV_TREE_SAME) |
a4a88b2b | 229 | return; |
8efdc326 | 230 | diff = REV_TREE_NEW; |
a4a88b2b LT |
231 | } |
232 | tree_difference = diff; | |
233 | } | |
234 | ||
235 | static void file_change(struct diff_options *options, | |
236 | unsigned old_mode, unsigned new_mode, | |
237 | const unsigned char *old_sha1, | |
238 | const unsigned char *new_sha1, | |
239 | const char *base, const char *path) | |
240 | { | |
8efdc326 | 241 | tree_difference = REV_TREE_DIFFERENT; |
a4a88b2b LT |
242 | } |
243 | ||
c4e05b1a | 244 | int rev_compare_tree(struct rev_info *revs, struct tree *t1, struct tree *t2) |
a4a88b2b LT |
245 | { |
246 | if (!t1) | |
8efdc326 | 247 | return REV_TREE_NEW; |
a4a88b2b | 248 | if (!t2) |
8efdc326 FK |
249 | return REV_TREE_DIFFERENT; |
250 | tree_difference = REV_TREE_SAME; | |
c4e05b1a | 251 | if (diff_tree_sha1(t1->object.sha1, t2->object.sha1, "", |
cd2bdc53 | 252 | &revs->pruning) < 0) |
8efdc326 | 253 | return REV_TREE_DIFFERENT; |
a4a88b2b LT |
254 | return tree_difference; |
255 | } | |
256 | ||
c4e05b1a | 257 | int rev_same_tree_as_empty(struct rev_info *revs, struct tree *t1) |
a4a88b2b LT |
258 | { |
259 | int retval; | |
260 | void *tree; | |
261 | struct tree_desc empty, real; | |
262 | ||
263 | if (!t1) | |
264 | return 0; | |
265 | ||
8e440259 | 266 | tree = read_object_with_reference(t1->object.sha1, tree_type, &real.size, NULL); |
a4a88b2b LT |
267 | if (!tree) |
268 | return 0; | |
269 | real.buf = tree; | |
270 | ||
271 | empty.buf = ""; | |
272 | empty.size = 0; | |
273 | ||
274 | tree_difference = 0; | |
cd2bdc53 | 275 | retval = diff_tree(&empty, &real, "", &revs->pruning); |
a4a88b2b LT |
276 | free(tree); |
277 | ||
278 | return retval >= 0 && !tree_difference; | |
279 | } | |
280 | ||
281 | static void try_to_simplify_commit(struct rev_info *revs, struct commit *commit) | |
282 | { | |
283 | struct commit_list **pp, *parent; | |
6631c736 | 284 | int tree_changed = 0, tree_same = 0; |
a4a88b2b LT |
285 | |
286 | if (!commit->tree) | |
287 | return; | |
288 | ||
289 | if (!commit->parents) { | |
c4e05b1a | 290 | if (!rev_same_tree_as_empty(revs, commit->tree)) |
a4a88b2b LT |
291 | commit->object.flags |= TREECHANGE; |
292 | return; | |
293 | } | |
294 | ||
295 | pp = &commit->parents; | |
296 | while ((parent = *pp) != NULL) { | |
297 | struct commit *p = parent->item; | |
298 | ||
a4a88b2b | 299 | parse_commit(p); |
c4e05b1a | 300 | switch (rev_compare_tree(revs, p->tree, commit->tree)) { |
8efdc326 | 301 | case REV_TREE_SAME: |
6631c736 | 302 | tree_same = 1; |
9202434c | 303 | if (!revs->simplify_history || (p->object.flags & UNINTERESTING)) { |
f3219fbb JH |
304 | /* Even if a merge with an uninteresting |
305 | * side branch brought the entire change | |
306 | * we are interested in, we do not want | |
307 | * to lose the other branches of this | |
308 | * merge, so we just keep going. | |
309 | */ | |
310 | pp = &parent->next; | |
311 | continue; | |
312 | } | |
a4a88b2b LT |
313 | parent->next = NULL; |
314 | commit->parents = parent; | |
315 | return; | |
316 | ||
8efdc326 FK |
317 | case REV_TREE_NEW: |
318 | if (revs->remove_empty_trees && | |
c4e05b1a | 319 | rev_same_tree_as_empty(revs, p->tree)) { |
c348f31a JH |
320 | /* We are adding all the specified |
321 | * paths from this parent, so the | |
322 | * history beyond this parent is not | |
323 | * interesting. Remove its parents | |
324 | * (they are grandparents for us). | |
325 | * IOW, we pretend this parent is a | |
326 | * "root" commit. | |
a41e109c | 327 | */ |
c348f31a JH |
328 | parse_commit(p); |
329 | p->parents = NULL; | |
a4a88b2b LT |
330 | } |
331 | /* fallthrough */ | |
8efdc326 | 332 | case REV_TREE_DIFFERENT: |
f3219fbb | 333 | tree_changed = 1; |
a4a88b2b LT |
334 | pp = &parent->next; |
335 | continue; | |
336 | } | |
337 | die("bad tree compare for commit %s", sha1_to_hex(commit->object.sha1)); | |
338 | } | |
6631c736 | 339 | if (tree_changed && !tree_same) |
f3219fbb | 340 | commit->object.flags |= TREECHANGE; |
a4a88b2b LT |
341 | } |
342 | ||
343 | static void add_parents_to_list(struct rev_info *revs, struct commit *commit, struct commit_list **list) | |
344 | { | |
345 | struct commit_list *parent = commit->parents; | |
577ed5c2 | 346 | unsigned left_flag; |
a4a88b2b | 347 | |
3381c790 LT |
348 | if (commit->object.flags & ADDED) |
349 | return; | |
350 | commit->object.flags |= ADDED; | |
351 | ||
a4a88b2b LT |
352 | /* |
353 | * If the commit is uninteresting, don't try to | |
354 | * prune parents - we want the maximal uninteresting | |
355 | * set. | |
356 | * | |
357 | * Normally we haven't parsed the parent | |
358 | * yet, so we won't have a parent of a parent | |
359 | * here. However, it may turn out that we've | |
360 | * reached this commit some other way (where it | |
361 | * wasn't uninteresting), in which case we need | |
362 | * to mark its parents recursively too.. | |
363 | */ | |
364 | if (commit->object.flags & UNINTERESTING) { | |
365 | while (parent) { | |
366 | struct commit *p = parent->item; | |
367 | parent = parent->next; | |
368 | parse_commit(p); | |
369 | p->object.flags |= UNINTERESTING; | |
370 | if (p->parents) | |
371 | mark_parents_uninteresting(p); | |
372 | if (p->object.flags & SEEN) | |
373 | continue; | |
374 | p->object.flags |= SEEN; | |
375 | insert_by_date(p, list); | |
376 | } | |
377 | return; | |
378 | } | |
379 | ||
380 | /* | |
381 | * Ok, the commit wasn't uninteresting. Try to | |
382 | * simplify the commit history and find the parent | |
383 | * that has no differences in the path set if one exists. | |
384 | */ | |
8efdc326 FK |
385 | if (revs->prune_fn) |
386 | revs->prune_fn(revs, commit); | |
a4a88b2b | 387 | |
ba1d4505 LT |
388 | if (revs->no_walk) |
389 | return; | |
390 | ||
577ed5c2 | 391 | left_flag = (commit->object.flags & SYMMETRIC_LEFT); |
a4a88b2b LT |
392 | parent = commit->parents; |
393 | while (parent) { | |
394 | struct commit *p = parent->item; | |
395 | ||
396 | parent = parent->next; | |
397 | ||
398 | parse_commit(p); | |
577ed5c2 | 399 | p->object.flags |= left_flag; |
a4a88b2b LT |
400 | if (p->object.flags & SEEN) |
401 | continue; | |
402 | p->object.flags |= SEEN; | |
403 | insert_by_date(p, list); | |
404 | } | |
405 | } | |
406 | ||
407 | static void limit_list(struct rev_info *revs) | |
408 | { | |
409 | struct commit_list *list = revs->commits; | |
410 | struct commit_list *newlist = NULL; | |
411 | struct commit_list **p = &newlist; | |
412 | ||
413 | while (list) { | |
414 | struct commit_list *entry = list; | |
415 | struct commit *commit = list->item; | |
416 | struct object *obj = &commit->object; | |
417 | ||
418 | list = list->next; | |
419 | free(entry); | |
420 | ||
421 | if (revs->max_age != -1 && (commit->date < revs->max_age)) | |
422 | obj->flags |= UNINTERESTING; | |
a4a88b2b LT |
423 | add_parents_to_list(revs, commit, &list); |
424 | if (obj->flags & UNINTERESTING) { | |
425 | mark_parents_uninteresting(commit); | |
426 | if (everybody_uninteresting(list)) | |
427 | break; | |
428 | continue; | |
429 | } | |
430 | if (revs->min_age != -1 && (commit->date > revs->min_age)) | |
431 | continue; | |
432 | p = &commit_list_insert(commit, p)->next; | |
433 | } | |
384e99a4 | 434 | if (revs->boundary) { |
4c0fea0f JH |
435 | /* mark the ones that are on the result list first */ |
436 | for (list = newlist; list; list = list->next) { | |
437 | struct commit *commit = list->item; | |
438 | commit->object.flags |= TMP_MARK; | |
439 | } | |
440 | for (list = newlist; list; list = list->next) { | |
384e99a4 JH |
441 | struct commit *commit = list->item; |
442 | struct object *obj = &commit->object; | |
4c0fea0f JH |
443 | struct commit_list *parent; |
444 | if (obj->flags & UNINTERESTING) | |
384e99a4 | 445 | continue; |
4c0fea0f JH |
446 | for (parent = commit->parents; |
447 | parent; | |
448 | parent = parent->next) { | |
384e99a4 | 449 | struct commit *pcommit = parent->item; |
384e99a4 JH |
450 | if (!(pcommit->object.flags & UNINTERESTING)) |
451 | continue; | |
452 | pcommit->object.flags |= BOUNDARY; | |
4c0fea0f JH |
453 | if (pcommit->object.flags & TMP_MARK) |
454 | continue; | |
455 | pcommit->object.flags |= TMP_MARK; | |
384e99a4 JH |
456 | p = &commit_list_insert(pcommit, p)->next; |
457 | } | |
4c0fea0f JH |
458 | } |
459 | for (list = newlist; list; list = list->next) { | |
460 | struct commit *commit = list->item; | |
461 | commit->object.flags &= ~TMP_MARK; | |
384e99a4 JH |
462 | } |
463 | } | |
a4a88b2b LT |
464 | revs->commits = newlist; |
465 | } | |
466 | ||
63049292 JH |
467 | struct all_refs_cb { |
468 | int all_flags; | |
71b03b42 | 469 | int warned_bad_reflog; |
63049292 JH |
470 | struct rev_info *all_revs; |
471 | const char *name_for_errormsg; | |
472 | }; | |
ae563542 | 473 | |
8da19775 | 474 | static int handle_one_ref(const char *path, const unsigned char *sha1, int flag, void *cb_data) |
ae563542 | 475 | { |
63049292 JH |
476 | struct all_refs_cb *cb = cb_data; |
477 | struct object *object = get_reference(cb->all_revs, path, sha1, | |
478 | cb->all_flags); | |
479 | add_pending_object(cb->all_revs, object, ""); | |
ae563542 LT |
480 | return 0; |
481 | } | |
482 | ||
483 | static void handle_all(struct rev_info *revs, unsigned flags) | |
484 | { | |
63049292 JH |
485 | struct all_refs_cb cb; |
486 | cb.all_revs = revs; | |
487 | cb.all_flags = flags; | |
488 | for_each_ref(handle_one_ref, &cb); | |
489 | } | |
490 | ||
71b03b42 | 491 | static void handle_one_reflog_commit(unsigned char *sha1, void *cb_data) |
63049292 JH |
492 | { |
493 | struct all_refs_cb *cb = cb_data; | |
71b03b42 SP |
494 | if (!is_null_sha1(sha1)) { |
495 | struct object *o = parse_object(sha1); | |
496 | if (o) { | |
497 | o->flags |= cb->all_flags; | |
498 | add_pending_object(cb->all_revs, o, ""); | |
499 | } | |
500 | else if (!cb->warned_bad_reflog) { | |
501 | warn("reflog of '%s' references pruned commits", | |
502 | cb->name_for_errormsg); | |
503 | cb->warned_bad_reflog = 1; | |
504 | } | |
63049292 | 505 | } |
71b03b42 SP |
506 | } |
507 | ||
883d60fa JS |
508 | static int handle_one_reflog_ent(unsigned char *osha1, unsigned char *nsha1, |
509 | const char *email, unsigned long timestamp, int tz, | |
510 | const char *message, void *cb_data) | |
71b03b42 SP |
511 | { |
512 | handle_one_reflog_commit(osha1, cb_data); | |
513 | handle_one_reflog_commit(nsha1, cb_data); | |
63049292 JH |
514 | return 0; |
515 | } | |
516 | ||
517 | static int handle_one_reflog(const char *path, const unsigned char *sha1, int flag, void *cb_data) | |
518 | { | |
519 | struct all_refs_cb *cb = cb_data; | |
71b03b42 | 520 | cb->warned_bad_reflog = 0; |
63049292 JH |
521 | cb->name_for_errormsg = path; |
522 | for_each_reflog_ent(path, handle_one_reflog_ent, cb_data); | |
523 | return 0; | |
524 | } | |
525 | ||
526 | static void handle_reflog(struct rev_info *revs, unsigned flags) | |
527 | { | |
528 | struct all_refs_cb cb; | |
529 | cb.all_revs = revs; | |
530 | cb.all_flags = flags; | |
531 | for_each_ref(handle_one_reflog, &cb); | |
ae563542 LT |
532 | } |
533 | ||
ea4a19e1 JH |
534 | static int add_parents_only(struct rev_info *revs, const char *arg, int flags) |
535 | { | |
536 | unsigned char sha1[20]; | |
537 | struct object *it; | |
538 | struct commit *commit; | |
539 | struct commit_list *parents; | |
540 | ||
541 | if (*arg == '^') { | |
542 | flags ^= UNINTERESTING; | |
543 | arg++; | |
544 | } | |
545 | if (get_sha1(arg, sha1)) | |
546 | return 0; | |
547 | while (1) { | |
548 | it = get_reference(revs, arg, sha1, 0); | |
1974632c | 549 | if (it->type != OBJ_TAG) |
ea4a19e1 | 550 | break; |
e702496e | 551 | hashcpy(sha1, ((struct tag*)it)->tagged->sha1); |
ea4a19e1 | 552 | } |
1974632c | 553 | if (it->type != OBJ_COMMIT) |
ea4a19e1 JH |
554 | return 0; |
555 | commit = (struct commit *)it; | |
556 | for (parents = commit->parents; parents; parents = parents->next) { | |
557 | it = &parents->item->object; | |
558 | it->flags |= flags; | |
559 | add_pending_object(revs, it, arg); | |
560 | } | |
561 | return 1; | |
562 | } | |
563 | ||
db6296a5 | 564 | void init_revisions(struct rev_info *revs, const char *prefix) |
8efdc326 FK |
565 | { |
566 | memset(revs, 0, sizeof(*revs)); | |
8e8f9987 | 567 | |
6b9c58f4 | 568 | revs->abbrev = DEFAULT_ABBREV; |
8e8f9987 | 569 | revs->ignore_merges = 1; |
9202434c | 570 | revs->simplify_history = 1; |
cd2bdc53 LT |
571 | revs->pruning.recursive = 1; |
572 | revs->pruning.add_remove = file_add_remove; | |
573 | revs->pruning.change = file_change; | |
8efdc326 FK |
574 | revs->lifo = 1; |
575 | revs->dense = 1; | |
db6296a5 | 576 | revs->prefix = prefix; |
8efdc326 FK |
577 | revs->max_age = -1; |
578 | revs->min_age = -1; | |
d5db6c9e | 579 | revs->skip_count = -1; |
8efdc326 FK |
580 | revs->max_count = -1; |
581 | ||
582 | revs->prune_fn = NULL; | |
583 | revs->prune_data = NULL; | |
584 | ||
585 | revs->topo_setter = topo_sort_default_setter; | |
586 | revs->topo_getter = topo_sort_default_getter; | |
cd2bdc53 | 587 | |
cd2bdc53 LT |
588 | revs->commit_format = CMIT_FMT_DEFAULT; |
589 | ||
590 | diff_setup(&revs->diffopt); | |
8efdc326 FK |
591 | } |
592 | ||
0d2c9d67 RS |
593 | static void add_pending_commit_list(struct rev_info *revs, |
594 | struct commit_list *commit_list, | |
595 | unsigned int flags) | |
596 | { | |
597 | while (commit_list) { | |
598 | struct object *object = &commit_list->item->object; | |
599 | object->flags |= flags; | |
600 | add_pending_object(revs, object, sha1_to_hex(object->sha1)); | |
601 | commit_list = commit_list->next; | |
602 | } | |
603 | } | |
604 | ||
ae3e5e1e JH |
605 | static void prepare_show_merge(struct rev_info *revs) |
606 | { | |
607 | struct commit_list *bases; | |
608 | struct commit *head, *other; | |
609 | unsigned char sha1[20]; | |
610 | const char **prune = NULL; | |
611 | int i, prune_num = 1; /* counting terminating NULL */ | |
612 | ||
613 | if (get_sha1("HEAD", sha1) || !(head = lookup_commit(sha1))) | |
614 | die("--merge without HEAD?"); | |
615 | if (get_sha1("MERGE_HEAD", sha1) || !(other = lookup_commit(sha1))) | |
616 | die("--merge without MERGE_HEAD?"); | |
617 | add_pending_object(revs, &head->object, "HEAD"); | |
618 | add_pending_object(revs, &other->object, "MERGE_HEAD"); | |
619 | bases = get_merge_bases(head, other, 1); | |
620 | while (bases) { | |
621 | struct commit *it = bases->item; | |
622 | struct commit_list *n = bases->next; | |
623 | free(bases); | |
624 | bases = n; | |
625 | it->object.flags |= UNINTERESTING; | |
626 | add_pending_object(revs, &it->object, "(merge-base)"); | |
627 | } | |
628 | ||
629 | if (!active_nr) | |
630 | read_cache(); | |
631 | for (i = 0; i < active_nr; i++) { | |
632 | struct cache_entry *ce = active_cache[i]; | |
633 | if (!ce_stage(ce)) | |
634 | continue; | |
635 | if (ce_path_match(ce, revs->prune_data)) { | |
636 | prune_num++; | |
637 | prune = xrealloc(prune, sizeof(*prune) * prune_num); | |
638 | prune[prune_num-2] = ce->name; | |
639 | prune[prune_num-1] = NULL; | |
640 | } | |
641 | while ((i+1 < active_nr) && | |
642 | ce_same_name(ce, active_cache[i+1])) | |
643 | i++; | |
644 | } | |
645 | revs->prune_data = prune; | |
646 | } | |
647 | ||
5d6f0935 JH |
648 | int handle_revision_arg(const char *arg, struct rev_info *revs, |
649 | int flags, | |
650 | int cant_be_filename) | |
651 | { | |
652 | char *dotdot; | |
653 | struct object *object; | |
654 | unsigned char sha1[20]; | |
655 | int local_flags; | |
656 | ||
657 | dotdot = strstr(arg, ".."); | |
658 | if (dotdot) { | |
659 | unsigned char from_sha1[20]; | |
660 | const char *next = dotdot + 2; | |
661 | const char *this = arg; | |
662 | int symmetric = *next == '.'; | |
663 | unsigned int flags_exclude = flags ^ UNINTERESTING; | |
664 | ||
665 | *dotdot = 0; | |
666 | next += symmetric; | |
667 | ||
668 | if (!*next) | |
669 | next = "HEAD"; | |
670 | if (dotdot == arg) | |
671 | this = "HEAD"; | |
672 | if (!get_sha1(this, from_sha1) && | |
673 | !get_sha1(next, sha1)) { | |
674 | struct commit *a, *b; | |
675 | struct commit_list *exclude; | |
676 | ||
677 | a = lookup_commit_reference(from_sha1); | |
678 | b = lookup_commit_reference(sha1); | |
679 | if (!a || !b) { | |
680 | die(symmetric ? | |
681 | "Invalid symmetric difference expression %s...%s" : | |
682 | "Invalid revision range %s..%s", | |
683 | arg, next); | |
684 | } | |
685 | ||
686 | if (!cant_be_filename) { | |
687 | *dotdot = '.'; | |
688 | verify_non_filename(revs->prefix, arg); | |
689 | } | |
690 | ||
691 | if (symmetric) { | |
692 | exclude = get_merge_bases(a, b, 1); | |
693 | add_pending_commit_list(revs, exclude, | |
694 | flags_exclude); | |
695 | free_commit_list(exclude); | |
577ed5c2 | 696 | a->object.flags |= flags | SYMMETRIC_LEFT; |
5d6f0935 JH |
697 | } else |
698 | a->object.flags |= flags_exclude; | |
699 | b->object.flags |= flags; | |
700 | add_pending_object(revs, &a->object, this); | |
701 | add_pending_object(revs, &b->object, next); | |
702 | return 0; | |
703 | } | |
704 | *dotdot = '.'; | |
705 | } | |
706 | dotdot = strstr(arg, "^@"); | |
707 | if (dotdot && !dotdot[2]) { | |
708 | *dotdot = 0; | |
709 | if (add_parents_only(revs, arg, flags)) | |
710 | return 0; | |
711 | *dotdot = '^'; | |
712 | } | |
62476c8e JH |
713 | dotdot = strstr(arg, "^!"); |
714 | if (dotdot && !dotdot[2]) { | |
715 | *dotdot = 0; | |
716 | if (!add_parents_only(revs, arg, flags ^ UNINTERESTING)) | |
717 | *dotdot = '^'; | |
718 | } | |
719 | ||
5d6f0935 JH |
720 | local_flags = 0; |
721 | if (*arg == '^') { | |
722 | local_flags = UNINTERESTING; | |
723 | arg++; | |
724 | } | |
725 | if (get_sha1(arg, sha1)) | |
726 | return -1; | |
727 | if (!cant_be_filename) | |
728 | verify_non_filename(revs->prefix, arg); | |
729 | object = get_reference(revs, arg, sha1, flags ^ local_flags); | |
730 | add_pending_object(revs, object, arg); | |
731 | return 0; | |
732 | } | |
733 | ||
2d10c555 | 734 | static void add_grep(struct rev_info *revs, const char *ptn, enum grep_pat_token what) |
bd95fcd3 | 735 | { |
2d10c555 | 736 | if (!revs->grep_filter) { |
bd95fcd3 JH |
737 | struct grep_opt *opt = xcalloc(1, sizeof(*opt)); |
738 | opt->status_only = 1; | |
739 | opt->pattern_tail = &(opt->pattern_list); | |
740 | opt->regflags = REG_NEWLINE; | |
2d10c555 | 741 | revs->grep_filter = opt; |
bd95fcd3 | 742 | } |
2d10c555 JH |
743 | append_grep_pattern(revs->grep_filter, ptn, |
744 | "command line", 0, what); | |
745 | } | |
746 | ||
747 | static void add_header_grep(struct rev_info *revs, const char *field, const char *pattern) | |
748 | { | |
749 | char *pat; | |
750 | const char *prefix; | |
751 | int patlen, fldlen; | |
bd95fcd3 JH |
752 | |
753 | fldlen = strlen(field); | |
754 | patlen = strlen(pattern); | |
a2ed6ae4 LT |
755 | pat = xmalloc(patlen + fldlen + 10); |
756 | prefix = ".*"; | |
757 | if (*pattern == '^') { | |
758 | prefix = ""; | |
759 | pattern++; | |
760 | } | |
761 | sprintf(pat, "^%s %s%s", field, prefix, pattern); | |
2d10c555 | 762 | add_grep(revs, pat, GREP_PATTERN_HEAD); |
bd95fcd3 JH |
763 | } |
764 | ||
765 | static void add_message_grep(struct rev_info *revs, const char *pattern) | |
766 | { | |
2d10c555 | 767 | add_grep(revs, pattern, GREP_PATTERN_BODY); |
bd95fcd3 JH |
768 | } |
769 | ||
106d710b JH |
770 | static void add_ignore_packed(struct rev_info *revs, const char *name) |
771 | { | |
772 | int num = ++revs->num_ignore_packed; | |
773 | ||
774 | revs->ignore_packed = xrealloc(revs->ignore_packed, | |
775 | sizeof(const char **) * (num + 1)); | |
776 | revs->ignore_packed[num-1] = name; | |
777 | revs->ignore_packed[num] = NULL; | |
778 | } | |
779 | ||
ae563542 LT |
780 | /* |
781 | * Parse revision information, filling in the "rev_info" structure, | |
782 | * and removing the used arguments from the argument list. | |
783 | * | |
765ac8ec LT |
784 | * Returns the number of arguments left that weren't recognized |
785 | * (which are also moved to the head of the argument list) | |
ae563542 | 786 | */ |
a4a88b2b | 787 | int setup_revisions(int argc, const char **argv, struct rev_info *revs, const char *def) |
ae563542 | 788 | { |
ae3e5e1e | 789 | int i, flags, seen_dashdash, show_merge; |
765ac8ec | 790 | const char **unrecognized = argv + 1; |
ae563542 | 791 | int left = 1; |
70d0afba | 792 | int all_match = 0; |
ae563542 | 793 | |
ae563542 LT |
794 | /* First, search for "--" */ |
795 | seen_dashdash = 0; | |
796 | for (i = 1; i < argc; i++) { | |
797 | const char *arg = argv[i]; | |
798 | if (strcmp(arg, "--")) | |
799 | continue; | |
800 | argv[i] = NULL; | |
801 | argc = i; | |
8efdc326 | 802 | revs->prune_data = get_pathspec(revs->prefix, argv + i + 1); |
ae563542 LT |
803 | seen_dashdash = 1; |
804 | break; | |
805 | } | |
806 | ||
ae3e5e1e | 807 | flags = show_merge = 0; |
ae563542 | 808 | for (i = 1; i < argc; i++) { |
ae563542 | 809 | const char *arg = argv[i]; |
ae563542 | 810 | if (*arg == '-') { |
cd2bdc53 | 811 | int opts; |
ae563542 LT |
812 | if (!strncmp(arg, "--max-count=", 12)) { |
813 | revs->max_count = atoi(arg + 12); | |
814 | continue; | |
815 | } | |
d5db6c9e JH |
816 | if (!strncmp(arg, "--skip=", 7)) { |
817 | revs->skip_count = atoi(arg + 7); | |
818 | continue; | |
819 | } | |
de5f2bf3 | 820 | /* accept -<digit>, like traditional "head" */ |
64bc6e3d JH |
821 | if ((*arg == '-') && isdigit(arg[1])) { |
822 | revs->max_count = atoi(arg + 1); | |
823 | continue; | |
824 | } | |
825 | if (!strcmp(arg, "-n")) { | |
826 | if (argc <= i + 1) | |
827 | die("-n requires an argument"); | |
828 | revs->max_count = atoi(argv[++i]); | |
829 | continue; | |
830 | } | |
831 | if (!strncmp(arg,"-n",2)) { | |
832 | revs->max_count = atoi(arg + 2); | |
833 | continue; | |
834 | } | |
ae563542 LT |
835 | if (!strncmp(arg, "--max-age=", 10)) { |
836 | revs->max_age = atoi(arg + 10); | |
ae563542 LT |
837 | continue; |
838 | } | |
fd751667 JH |
839 | if (!strncmp(arg, "--since=", 8)) { |
840 | revs->max_age = approxidate(arg + 8); | |
fd751667 JH |
841 | continue; |
842 | } | |
843 | if (!strncmp(arg, "--after=", 8)) { | |
844 | revs->max_age = approxidate(arg + 8); | |
53069686 JH |
845 | continue; |
846 | } | |
847 | if (!strncmp(arg, "--min-age=", 10)) { | |
848 | revs->min_age = atoi(arg + 10); | |
fd751667 JH |
849 | continue; |
850 | } | |
851 | if (!strncmp(arg, "--before=", 9)) { | |
852 | revs->min_age = approxidate(arg + 9); | |
fd751667 JH |
853 | continue; |
854 | } | |
855 | if (!strncmp(arg, "--until=", 8)) { | |
856 | revs->min_age = approxidate(arg + 8); | |
fd751667 JH |
857 | continue; |
858 | } | |
ae563542 LT |
859 | if (!strcmp(arg, "--all")) { |
860 | handle_all(revs, flags); | |
861 | continue; | |
862 | } | |
63049292 JH |
863 | if (!strcmp(arg, "--reflog")) { |
864 | handle_reflog(revs, flags); | |
865 | continue; | |
866 | } | |
ae563542 LT |
867 | if (!strcmp(arg, "--not")) { |
868 | flags ^= UNINTERESTING; | |
869 | continue; | |
870 | } | |
871 | if (!strcmp(arg, "--default")) { | |
872 | if (++i >= argc) | |
873 | die("bad --default argument"); | |
874 | def = argv[i]; | |
875 | continue; | |
876 | } | |
ae3e5e1e JH |
877 | if (!strcmp(arg, "--merge")) { |
878 | show_merge = 1; | |
879 | continue; | |
880 | } | |
ae563542 LT |
881 | if (!strcmp(arg, "--topo-order")) { |
882 | revs->topo_order = 1; | |
883 | continue; | |
884 | } | |
885 | if (!strcmp(arg, "--date-order")) { | |
886 | revs->lifo = 0; | |
887 | revs->topo_order = 1; | |
888 | continue; | |
889 | } | |
7b0c9966 LT |
890 | if (!strcmp(arg, "--parents")) { |
891 | revs->parents = 1; | |
892 | continue; | |
893 | } | |
ae563542 LT |
894 | if (!strcmp(arg, "--dense")) { |
895 | revs->dense = 1; | |
896 | continue; | |
897 | } | |
898 | if (!strcmp(arg, "--sparse")) { | |
899 | revs->dense = 0; | |
900 | continue; | |
901 | } | |
902 | if (!strcmp(arg, "--remove-empty")) { | |
903 | revs->remove_empty_trees = 1; | |
904 | continue; | |
905 | } | |
5cdeae71 | 906 | if (!strcmp(arg, "--no-merges")) { |
765ac8ec LT |
907 | revs->no_merges = 1; |
908 | continue; | |
909 | } | |
384e99a4 JH |
910 | if (!strcmp(arg, "--boundary")) { |
911 | revs->boundary = 1; | |
912 | continue; | |
913 | } | |
8dce8235 JH |
914 | if (!strcmp(arg, "--left-right")) { |
915 | revs->left_right = 1; | |
74bd9029 JH |
916 | continue; |
917 | } | |
ae563542 LT |
918 | if (!strcmp(arg, "--objects")) { |
919 | revs->tag_objects = 1; | |
920 | revs->tree_objects = 1; | |
921 | revs->blob_objects = 1; | |
922 | continue; | |
923 | } | |
924 | if (!strcmp(arg, "--objects-edge")) { | |
925 | revs->tag_objects = 1; | |
926 | revs->tree_objects = 1; | |
927 | revs->blob_objects = 1; | |
928 | revs->edge_hint = 1; | |
929 | continue; | |
930 | } | |
d9a83684 LT |
931 | if (!strcmp(arg, "--unpacked")) { |
932 | revs->unpacked = 1; | |
106d710b JH |
933 | free(revs->ignore_packed); |
934 | revs->ignore_packed = NULL; | |
935 | revs->num_ignore_packed = 0; | |
936 | continue; | |
937 | } | |
938 | if (!strncmp(arg, "--unpacked=", 11)) { | |
939 | revs->unpacked = 1; | |
940 | add_ignore_packed(revs, arg+11); | |
d9a83684 LT |
941 | continue; |
942 | } | |
cd2bdc53 LT |
943 | if (!strcmp(arg, "-r")) { |
944 | revs->diff = 1; | |
945 | revs->diffopt.recursive = 1; | |
946 | continue; | |
947 | } | |
948 | if (!strcmp(arg, "-t")) { | |
949 | revs->diff = 1; | |
950 | revs->diffopt.recursive = 1; | |
951 | revs->diffopt.tree_in_recursive = 1; | |
952 | continue; | |
953 | } | |
954 | if (!strcmp(arg, "-m")) { | |
955 | revs->ignore_merges = 0; | |
956 | continue; | |
957 | } | |
958 | if (!strcmp(arg, "-c")) { | |
959 | revs->diff = 1; | |
0fe7c1de | 960 | revs->dense_combined_merges = 0; |
cd2bdc53 LT |
961 | revs->combine_merges = 1; |
962 | continue; | |
963 | } | |
964 | if (!strcmp(arg, "--cc")) { | |
965 | revs->diff = 1; | |
966 | revs->dense_combined_merges = 1; | |
967 | revs->combine_merges = 1; | |
968 | continue; | |
969 | } | |
970 | if (!strcmp(arg, "-v")) { | |
971 | revs->verbose_header = 1; | |
cd2bdc53 LT |
972 | continue; |
973 | } | |
974 | if (!strncmp(arg, "--pretty", 8)) { | |
975 | revs->verbose_header = 1; | |
cd2bdc53 LT |
976 | revs->commit_format = get_commit_format(arg+8); |
977 | continue; | |
978 | } | |
979 | if (!strcmp(arg, "--root")) { | |
980 | revs->show_root_diff = 1; | |
981 | continue; | |
982 | } | |
983 | if (!strcmp(arg, "--no-commit-id")) { | |
984 | revs->no_commit_id = 1; | |
985 | continue; | |
986 | } | |
987 | if (!strcmp(arg, "--always")) { | |
988 | revs->always_show_header = 1; | |
989 | continue; | |
990 | } | |
991 | if (!strcmp(arg, "--no-abbrev")) { | |
992 | revs->abbrev = 0; | |
993 | continue; | |
994 | } | |
995 | if (!strcmp(arg, "--abbrev")) { | |
996 | revs->abbrev = DEFAULT_ABBREV; | |
997 | continue; | |
998 | } | |
508d9e37 LT |
999 | if (!strncmp(arg, "--abbrev=", 9)) { |
1000 | revs->abbrev = strtoul(arg + 9, NULL, 10); | |
1001 | if (revs->abbrev < MINIMUM_ABBREV) | |
1002 | revs->abbrev = MINIMUM_ABBREV; | |
1003 | else if (revs->abbrev > 40) | |
1004 | revs->abbrev = 40; | |
1005 | continue; | |
1006 | } | |
cd2bdc53 LT |
1007 | if (!strcmp(arg, "--abbrev-commit")) { |
1008 | revs->abbrev_commit = 1; | |
1009 | continue; | |
1010 | } | |
1011 | if (!strcmp(arg, "--full-diff")) { | |
1012 | revs->diff = 1; | |
1013 | revs->full_diff = 1; | |
1014 | continue; | |
1015 | } | |
9202434c LT |
1016 | if (!strcmp(arg, "--full-history")) { |
1017 | revs->simplify_history = 0; | |
1018 | continue; | |
1019 | } | |
3dfb9278 JF |
1020 | if (!strcmp(arg, "--relative-date")) { |
1021 | revs->relative_date = 1; | |
1022 | continue; | |
1023 | } | |
2d10c555 JH |
1024 | |
1025 | /* | |
1026 | * Grepping the commit log | |
1027 | */ | |
bd95fcd3 JH |
1028 | if (!strncmp(arg, "--author=", 9)) { |
1029 | add_header_grep(revs, "author", arg+9); | |
1030 | continue; | |
1031 | } | |
1032 | if (!strncmp(arg, "--committer=", 12)) { | |
1033 | add_header_grep(revs, "committer", arg+12); | |
1034 | continue; | |
1035 | } | |
1036 | if (!strncmp(arg, "--grep=", 7)) { | |
1037 | add_message_grep(revs, arg+7); | |
1038 | continue; | |
1039 | } | |
70d0afba JH |
1040 | if (!strcmp(arg, "--all-match")) { |
1041 | all_match = 1; | |
1042 | continue; | |
1043 | } | |
7cbcf4d5 JH |
1044 | if (!strncmp(arg, "--encoding=", 11)) { |
1045 | arg += 11; | |
1046 | if (strcmp(arg, "none")) | |
1047 | git_log_output_encoding = strdup(arg); | |
1048 | else | |
1049 | git_log_output_encoding = ""; | |
1050 | continue; | |
1051 | } | |
2d10c555 | 1052 | |
cd2bdc53 LT |
1053 | opts = diff_opt_parse(&revs->diffopt, argv+i, argc-i); |
1054 | if (opts > 0) { | |
1055 | revs->diff = 1; | |
1056 | i += opts - 1; | |
1057 | continue; | |
1058 | } | |
ae563542 LT |
1059 | *unrecognized++ = arg; |
1060 | left++; | |
1061 | continue; | |
1062 | } | |
ae563542 | 1063 | |
5d6f0935 JH |
1064 | if (handle_revision_arg(arg, revs, flags, seen_dashdash)) { |
1065 | int j; | |
1066 | if (seen_dashdash || *arg == '^') | |
ae563542 LT |
1067 | die("bad revision '%s'", arg); |
1068 | ||
ea92f41f JH |
1069 | /* If we didn't have a "--": |
1070 | * (1) all filenames must exist; | |
1071 | * (2) all rev-args must not be interpretable | |
1072 | * as a valid filename. | |
1073 | * but the latter we have checked in the main loop. | |
1074 | */ | |
e23d0b4a LT |
1075 | for (j = i; j < argc; j++) |
1076 | verify_filename(revs->prefix, argv[j]); | |
1077 | ||
5d6f0935 JH |
1078 | revs->prune_data = get_pathspec(revs->prefix, |
1079 | argv + i); | |
ae563542 LT |
1080 | break; |
1081 | } | |
ae563542 | 1082 | } |
5d6f0935 | 1083 | |
ae3e5e1e JH |
1084 | if (show_merge) |
1085 | prepare_show_merge(revs); | |
1f1e895f | 1086 | if (def && !revs->pending.nr) { |
ae563542 | 1087 | unsigned char sha1[20]; |
cd2bdc53 | 1088 | struct object *object; |
31fff305 | 1089 | if (get_sha1(def, sha1)) |
ae563542 | 1090 | die("bad default revision '%s'", def); |
cd2bdc53 LT |
1091 | object = get_reference(revs, def, sha1, 0); |
1092 | add_pending_object(revs, object, def); | |
ae563542 | 1093 | } |
8efdc326 | 1094 | |
9dad9d2e | 1095 | if (revs->topo_order) |
53069686 JH |
1096 | revs->limited = 1; |
1097 | ||
8efdc326 | 1098 | if (revs->prune_data) { |
cd2bdc53 | 1099 | diff_tree_setup_paths(revs->prune_data, &revs->pruning); |
8efdc326 | 1100 | revs->prune_fn = try_to_simplify_commit; |
cd2bdc53 LT |
1101 | if (!revs->full_diff) |
1102 | diff_tree_setup_paths(revs->prune_data, &revs->diffopt); | |
8efdc326 | 1103 | } |
cd2bdc53 LT |
1104 | if (revs->combine_merges) { |
1105 | revs->ignore_merges = 0; | |
0e677e1a | 1106 | if (revs->dense_combined_merges && !revs->diffopt.output_format) |
cd2bdc53 LT |
1107 | revs->diffopt.output_format = DIFF_FORMAT_PATCH; |
1108 | } | |
cd2bdc53 | 1109 | revs->diffopt.abbrev = revs->abbrev; |
72ee96c0 JH |
1110 | if (diff_setup_done(&revs->diffopt) < 0) |
1111 | die("diff_setup_done failed"); | |
8efdc326 | 1112 | |
70d0afba JH |
1113 | if (revs->grep_filter) { |
1114 | revs->grep_filter->all_match = all_match; | |
2d10c555 | 1115 | compile_grep_patterns(revs->grep_filter); |
70d0afba | 1116 | } |
bd95fcd3 | 1117 | |
ae563542 LT |
1118 | return left; |
1119 | } | |
a4a88b2b LT |
1120 | |
1121 | void prepare_revision_walk(struct rev_info *revs) | |
1122 | { | |
1f1e895f | 1123 | int nr = revs->pending.nr; |
94d23673 | 1124 | struct object_array_entry *e, *list; |
cd2bdc53 | 1125 | |
94d23673 | 1126 | e = list = revs->pending.objects; |
1f1e895f LT |
1127 | revs->pending.nr = 0; |
1128 | revs->pending.alloc = 0; | |
1129 | revs->pending.objects = NULL; | |
1130 | while (--nr >= 0) { | |
94d23673 | 1131 | struct commit *commit = handle_commit(revs, e->item, e->name); |
cd2bdc53 LT |
1132 | if (commit) { |
1133 | if (!(commit->object.flags & SEEN)) { | |
1134 | commit->object.flags |= SEEN; | |
1135 | insert_by_date(commit, &revs->commits); | |
1136 | } | |
1137 | } | |
94d23673 | 1138 | e++; |
cd2bdc53 | 1139 | } |
94d23673 | 1140 | free(list); |
cd2bdc53 | 1141 | |
ba1d4505 LT |
1142 | if (revs->no_walk) |
1143 | return; | |
a4a88b2b LT |
1144 | if (revs->limited) |
1145 | limit_list(revs); | |
1146 | if (revs->topo_order) | |
8efdc326 FK |
1147 | sort_in_topological_order_fn(&revs->commits, revs->lifo, |
1148 | revs->topo_setter, | |
1149 | revs->topo_getter); | |
a4a88b2b LT |
1150 | } |
1151 | ||
3381c790 | 1152 | static int rewrite_one(struct rev_info *revs, struct commit **pp) |
765ac8ec LT |
1153 | { |
1154 | for (;;) { | |
1155 | struct commit *p = *pp; | |
3381c790 LT |
1156 | if (!revs->limited) |
1157 | add_parents_to_list(revs, p, &revs->commits); | |
6631c736 LT |
1158 | if (p->parents && p->parents->next) |
1159 | return 0; | |
765ac8ec LT |
1160 | if (p->object.flags & (TREECHANGE | UNINTERESTING)) |
1161 | return 0; | |
1162 | if (!p->parents) | |
1163 | return -1; | |
1164 | *pp = p->parents->item; | |
1165 | } | |
1166 | } | |
1167 | ||
3381c790 | 1168 | static void rewrite_parents(struct rev_info *revs, struct commit *commit) |
765ac8ec LT |
1169 | { |
1170 | struct commit_list **pp = &commit->parents; | |
1171 | while (*pp) { | |
1172 | struct commit_list *parent = *pp; | |
3381c790 | 1173 | if (rewrite_one(revs, &parent->item) < 0) { |
765ac8ec LT |
1174 | *pp = parent->next; |
1175 | continue; | |
1176 | } | |
1177 | pp = &parent->next; | |
1178 | } | |
1179 | } | |
1180 | ||
1b65a5aa JH |
1181 | static void mark_boundary_to_show(struct commit *commit) |
1182 | { | |
1183 | struct commit_list *p = commit->parents; | |
1184 | while (p) { | |
1185 | commit = p->item; | |
1186 | p = p->next; | |
1187 | if (commit->object.flags & BOUNDARY) | |
1188 | commit->object.flags |= BOUNDARY_SHOW; | |
1189 | } | |
1190 | } | |
1191 | ||
8ecae9b0 JH |
1192 | static int commit_match(struct commit *commit, struct rev_info *opt) |
1193 | { | |
2d10c555 | 1194 | if (!opt->grep_filter) |
8ecae9b0 | 1195 | return 1; |
2d10c555 JH |
1196 | return grep_buffer(opt->grep_filter, |
1197 | NULL, /* we say nothing, not even filename */ | |
1198 | commit->buffer, strlen(commit->buffer)); | |
8ecae9b0 JH |
1199 | } |
1200 | ||
d5db6c9e | 1201 | static struct commit *get_revision_1(struct rev_info *revs) |
a4a88b2b | 1202 | { |
d5db6c9e | 1203 | if (!revs->commits) |
a4a88b2b | 1204 | return NULL; |
a4a88b2b | 1205 | |
765ac8ec | 1206 | do { |
cb115748 LT |
1207 | struct commit_list *entry = revs->commits; |
1208 | struct commit *commit = entry->item; | |
ea5ed3ab | 1209 | |
cb115748 LT |
1210 | revs->commits = entry->next; |
1211 | free(entry); | |
2a0925be LT |
1212 | |
1213 | /* | |
1214 | * If we haven't done the list limiting, we need to look at | |
be7db6e5 LT |
1215 | * the parents here. We also need to do the date-based limiting |
1216 | * that we'd otherwise have done in limit_list(). | |
2a0925be | 1217 | */ |
be7db6e5 | 1218 | if (!revs->limited) { |
744f4985 JH |
1219 | if (revs->max_age != -1 && |
1220 | (commit->date < revs->max_age)) | |
be7db6e5 | 1221 | continue; |
2a0925be | 1222 | add_parents_to_list(revs, commit, &revs->commits); |
be7db6e5 | 1223 | } |
384e99a4 | 1224 | if (commit->object.flags & SHOWN) |
2a0925be | 1225 | continue; |
1b65a5aa | 1226 | |
744f4985 JH |
1227 | if (revs->unpacked && has_sha1_pack(commit->object.sha1, |
1228 | revs->ignore_packed)) | |
1229 | continue; | |
1230 | ||
1b65a5aa JH |
1231 | /* We want to show boundary commits only when their |
1232 | * children are shown. When path-limiter is in effect, | |
1233 | * rewrite_parents() drops some commits from getting shown, | |
1234 | * and there is no point showing boundary parents that | |
1235 | * are not shown. After rewrite_parents() rewrites the | |
1236 | * parents of a commit that is shown, we mark the boundary | |
1237 | * parents with BOUNDARY_SHOW. | |
1238 | */ | |
1239 | if (commit->object.flags & BOUNDARY_SHOW) { | |
1240 | commit->object.flags |= SHOWN; | |
1241 | return commit; | |
1242 | } | |
1243 | if (commit->object.flags & UNINTERESTING) | |
2a0925be | 1244 | continue; |
765ac8ec | 1245 | if (revs->min_age != -1 && (commit->date > revs->min_age)) |
2a0925be | 1246 | continue; |
384e99a4 JH |
1247 | if (revs->no_merges && |
1248 | commit->parents && commit->parents->next) | |
2a0925be | 1249 | continue; |
8ecae9b0 JH |
1250 | if (!commit_match(commit, revs)) |
1251 | continue; | |
8efdc326 | 1252 | if (revs->prune_fn && revs->dense) { |
6631c736 LT |
1253 | /* Commit without changes? */ |
1254 | if (!(commit->object.flags & TREECHANGE)) { | |
1255 | /* drop merges unless we want parenthood */ | |
1256 | if (!revs->parents) | |
1257 | continue; | |
1258 | /* non-merge - always ignore it */ | |
02d3dca3 | 1259 | if (!commit->parents || !commit->parents->next) |
6631c736 LT |
1260 | continue; |
1261 | } | |
2a0925be | 1262 | if (revs->parents) |
3381c790 | 1263 | rewrite_parents(revs, commit); |
384e99a4 | 1264 | } |
1b65a5aa JH |
1265 | if (revs->boundary) |
1266 | mark_boundary_to_show(commit); | |
765ac8ec LT |
1267 | commit->object.flags |= SHOWN; |
1268 | return commit; | |
1269 | } while (revs->commits); | |
1270 | return NULL; | |
1271 | } | |
d5db6c9e JH |
1272 | |
1273 | struct commit *get_revision(struct rev_info *revs) | |
1274 | { | |
1275 | struct commit *c = NULL; | |
1276 | ||
1277 | if (0 < revs->skip_count) { | |
1278 | while ((c = get_revision_1(revs)) != NULL) { | |
1279 | if (revs->skip_count-- <= 0) | |
1280 | break; | |
1281 | } | |
1282 | } | |
1283 | ||
1284 | /* Check the max_count ... */ | |
1285 | switch (revs->max_count) { | |
1286 | case -1: | |
1287 | break; | |
1288 | case 0: | |
1289 | return NULL; | |
1290 | default: | |
1291 | revs->max_count--; | |
1292 | } | |
1293 | if (c) | |
1294 | return c; | |
1295 | return get_revision_1(revs); | |
1296 | } |