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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" |
8860fd42 | 10 | #include "reflog-walk.h" |
ae563542 LT |
11 | |
12 | static char *path_name(struct name_path *path, const char *name) | |
13 | { | |
14 | struct name_path *p; | |
15 | char *n, *m; | |
16 | int nlen = strlen(name); | |
17 | int len = nlen + 1; | |
18 | ||
19 | for (p = path; p; p = p->up) { | |
20 | if (p->elem_len) | |
21 | len += p->elem_len + 1; | |
22 | } | |
23 | n = xmalloc(len); | |
24 | m = n + len - (nlen + 1); | |
25 | strcpy(m, name); | |
26 | for (p = path; p; p = p->up) { | |
27 | if (p->elem_len) { | |
28 | m -= p->elem_len + 1; | |
29 | memcpy(m, p->elem, p->elem_len); | |
30 | m[p->elem_len] = '/'; | |
31 | } | |
32 | } | |
33 | return n; | |
34 | } | |
35 | ||
1f1e895f LT |
36 | void add_object(struct object *obj, |
37 | struct object_array *p, | |
38 | struct name_path *path, | |
39 | const char *name) | |
ae563542 | 40 | { |
1f1e895f | 41 | add_object_array(obj, path_name(path, name), p); |
ae563542 LT |
42 | } |
43 | ||
44 | static void mark_blob_uninteresting(struct blob *blob) | |
45 | { | |
46 | if (blob->object.flags & UNINTERESTING) | |
47 | return; | |
48 | blob->object.flags |= UNINTERESTING; | |
49 | } | |
50 | ||
51 | void mark_tree_uninteresting(struct tree *tree) | |
52 | { | |
f75e53ed | 53 | struct tree_desc desc; |
4c068a98 | 54 | struct name_entry entry; |
ae563542 | 55 | struct object *obj = &tree->object; |
ae563542 LT |
56 | |
57 | if (obj->flags & UNINTERESTING) | |
58 | return; | |
59 | obj->flags |= UNINTERESTING; | |
60 | if (!has_sha1_file(obj->sha1)) | |
61 | return; | |
62 | if (parse_tree(tree) < 0) | |
63 | die("bad tree %s", sha1_to_hex(obj->sha1)); | |
f75e53ed | 64 | |
6fda5e51 | 65 | init_tree_desc(&desc, tree->buffer, 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 | { |
aa27e461 LT |
118 | if (revs->no_walk && (obj->flags & UNINTERESTING)) |
119 | die("object ranges do not make sense when not walking revisions"); | |
1f1e895f | 120 | add_object_array(obj, name, &revs->pending); |
8860fd42 JS |
121 | if (revs->reflog_info && obj->type == OBJ_COMMIT) |
122 | add_reflog_for_walk(revs->reflog_info, | |
123 | (struct commit *)obj, name); | |
ae563542 LT |
124 | } |
125 | ||
cd2bdc53 | 126 | static struct object *get_reference(struct rev_info *revs, const char *name, const unsigned char *sha1, unsigned int flags) |
ae563542 LT |
127 | { |
128 | struct object *object; | |
129 | ||
130 | object = parse_object(sha1); | |
131 | if (!object) | |
132 | die("bad object %s", name); | |
cd2bdc53 LT |
133 | object->flags |= flags; |
134 | return object; | |
135 | } | |
136 | ||
137 | static struct commit *handle_commit(struct rev_info *revs, struct object *object, const char *name) | |
138 | { | |
139 | unsigned long flags = object->flags; | |
ae563542 LT |
140 | |
141 | /* | |
142 | * Tag object? Look what it points to.. | |
143 | */ | |
1974632c | 144 | while (object->type == OBJ_TAG) { |
ae563542 | 145 | struct tag *tag = (struct tag *) object; |
cd2bdc53 | 146 | if (revs->tag_objects && !(flags & UNINTERESTING)) |
ae563542 LT |
147 | add_pending_object(revs, object, tag->tag); |
148 | object = parse_object(tag->tagged->sha1); | |
149 | if (!object) | |
150 | die("bad object %s", sha1_to_hex(tag->tagged->sha1)); | |
151 | } | |
152 | ||
153 | /* | |
154 | * Commit object? Just return it, we'll do all the complex | |
155 | * reachability crud. | |
156 | */ | |
1974632c | 157 | if (object->type == OBJ_COMMIT) { |
ae563542 | 158 | struct commit *commit = (struct commit *)object; |
ae563542 LT |
159 | if (parse_commit(commit) < 0) |
160 | die("unable to parse commit %s", name); | |
d9a83684 | 161 | if (flags & UNINTERESTING) { |
4262c1b0 | 162 | commit->object.flags |= UNINTERESTING; |
ae563542 | 163 | mark_parents_uninteresting(commit); |
d9a83684 LT |
164 | revs->limited = 1; |
165 | } | |
ae563542 LT |
166 | return commit; |
167 | } | |
168 | ||
169 | /* | |
170 | * Tree object? Either mark it uniniteresting, or add it | |
171 | * to the list of objects to look at later.. | |
172 | */ | |
1974632c | 173 | if (object->type == OBJ_TREE) { |
ae563542 LT |
174 | struct tree *tree = (struct tree *)object; |
175 | if (!revs->tree_objects) | |
176 | return NULL; | |
177 | if (flags & UNINTERESTING) { | |
178 | mark_tree_uninteresting(tree); | |
179 | return NULL; | |
180 | } | |
181 | add_pending_object(revs, object, ""); | |
182 | return NULL; | |
183 | } | |
184 | ||
185 | /* | |
186 | * Blob object? You know the drill by now.. | |
187 | */ | |
1974632c | 188 | if (object->type == OBJ_BLOB) { |
ae563542 LT |
189 | struct blob *blob = (struct blob *)object; |
190 | if (!revs->blob_objects) | |
191 | return NULL; | |
192 | if (flags & UNINTERESTING) { | |
193 | mark_blob_uninteresting(blob); | |
194 | return NULL; | |
195 | } | |
196 | add_pending_object(revs, object, ""); | |
197 | return NULL; | |
198 | } | |
199 | die("%s is unknown object", name); | |
200 | } | |
201 | ||
a4a88b2b LT |
202 | static int everybody_uninteresting(struct commit_list *orig) |
203 | { | |
204 | struct commit_list *list = orig; | |
205 | while (list) { | |
206 | struct commit *commit = list->item; | |
207 | list = list->next; | |
208 | if (commit->object.flags & UNINTERESTING) | |
209 | continue; | |
210 | return 0; | |
211 | } | |
212 | return 1; | |
213 | } | |
214 | ||
0a4ba7f8 JH |
215 | /* |
216 | * The goal is to get REV_TREE_NEW as the result only if the | |
217 | * diff consists of all '+' (and no other changes), and | |
218 | * REV_TREE_DIFFERENT otherwise (of course if the trees are | |
219 | * the same we want REV_TREE_SAME). That means that once we | |
220 | * get to REV_TREE_DIFFERENT, we do not have to look any further. | |
221 | */ | |
8efdc326 | 222 | static int tree_difference = REV_TREE_SAME; |
a4a88b2b LT |
223 | |
224 | static void file_add_remove(struct diff_options *options, | |
225 | int addremove, unsigned mode, | |
226 | const unsigned char *sha1, | |
227 | const char *base, const char *path) | |
228 | { | |
8efdc326 | 229 | int diff = REV_TREE_DIFFERENT; |
a4a88b2b LT |
230 | |
231 | /* | |
8efdc326 FK |
232 | * Is it an add of a new file? It means that the old tree |
233 | * didn't have it at all, so we will turn "REV_TREE_SAME" -> | |
234 | * "REV_TREE_NEW", but leave any "REV_TREE_DIFFERENT" alone | |
235 | * (and if it already was "REV_TREE_NEW", we'll keep it | |
236 | * "REV_TREE_NEW" of course). | |
a4a88b2b LT |
237 | */ |
238 | if (addremove == '+') { | |
239 | diff = tree_difference; | |
8efdc326 | 240 | if (diff != REV_TREE_SAME) |
a4a88b2b | 241 | return; |
8efdc326 | 242 | diff = REV_TREE_NEW; |
a4a88b2b LT |
243 | } |
244 | tree_difference = diff; | |
dd47aa31 JH |
245 | if (tree_difference == REV_TREE_DIFFERENT) |
246 | options->has_changes = 1; | |
a4a88b2b LT |
247 | } |
248 | ||
249 | static void file_change(struct diff_options *options, | |
250 | unsigned old_mode, unsigned new_mode, | |
251 | const unsigned char *old_sha1, | |
252 | const unsigned char *new_sha1, | |
253 | const char *base, const char *path) | |
254 | { | |
8efdc326 | 255 | tree_difference = REV_TREE_DIFFERENT; |
dd47aa31 | 256 | options->has_changes = 1; |
a4a88b2b LT |
257 | } |
258 | ||
c4e05b1a | 259 | int rev_compare_tree(struct rev_info *revs, struct tree *t1, struct tree *t2) |
a4a88b2b LT |
260 | { |
261 | if (!t1) | |
8efdc326 | 262 | return REV_TREE_NEW; |
a4a88b2b | 263 | if (!t2) |
8efdc326 FK |
264 | return REV_TREE_DIFFERENT; |
265 | tree_difference = REV_TREE_SAME; | |
dd47aa31 | 266 | revs->pruning.has_changes = 0; |
c4e05b1a | 267 | if (diff_tree_sha1(t1->object.sha1, t2->object.sha1, "", |
cd2bdc53 | 268 | &revs->pruning) < 0) |
8efdc326 | 269 | return REV_TREE_DIFFERENT; |
a4a88b2b LT |
270 | return tree_difference; |
271 | } | |
272 | ||
c4e05b1a | 273 | int rev_same_tree_as_empty(struct rev_info *revs, struct tree *t1) |
a4a88b2b LT |
274 | { |
275 | int retval; | |
276 | void *tree; | |
6fda5e51 | 277 | unsigned long size; |
a4a88b2b LT |
278 | struct tree_desc empty, real; |
279 | ||
280 | if (!t1) | |
281 | return 0; | |
282 | ||
6fda5e51 | 283 | tree = read_object_with_reference(t1->object.sha1, tree_type, &size, NULL); |
a4a88b2b LT |
284 | if (!tree) |
285 | return 0; | |
6fda5e51 LT |
286 | init_tree_desc(&real, tree, size); |
287 | init_tree_desc(&empty, "", 0); | |
a4a88b2b | 288 | |
0a4ba7f8 | 289 | tree_difference = REV_TREE_SAME; |
dd47aa31 | 290 | revs->pruning.has_changes = 0; |
cd2bdc53 | 291 | retval = diff_tree(&empty, &real, "", &revs->pruning); |
a4a88b2b LT |
292 | free(tree); |
293 | ||
0a4ba7f8 | 294 | return retval >= 0 && (tree_difference == REV_TREE_SAME); |
a4a88b2b LT |
295 | } |
296 | ||
297 | static void try_to_simplify_commit(struct rev_info *revs, struct commit *commit) | |
298 | { | |
299 | struct commit_list **pp, *parent; | |
6631c736 | 300 | int tree_changed = 0, tree_same = 0; |
a4a88b2b LT |
301 | |
302 | if (!commit->tree) | |
303 | return; | |
304 | ||
305 | if (!commit->parents) { | |
c4e05b1a | 306 | if (!rev_same_tree_as_empty(revs, commit->tree)) |
a4a88b2b LT |
307 | commit->object.flags |= TREECHANGE; |
308 | return; | |
309 | } | |
310 | ||
311 | pp = &commit->parents; | |
312 | while ((parent = *pp) != NULL) { | |
313 | struct commit *p = parent->item; | |
314 | ||
a4a88b2b | 315 | parse_commit(p); |
c4e05b1a | 316 | switch (rev_compare_tree(revs, p->tree, commit->tree)) { |
8efdc326 | 317 | case REV_TREE_SAME: |
6631c736 | 318 | tree_same = 1; |
9202434c | 319 | if (!revs->simplify_history || (p->object.flags & UNINTERESTING)) { |
f3219fbb JH |
320 | /* Even if a merge with an uninteresting |
321 | * side branch brought the entire change | |
322 | * we are interested in, we do not want | |
323 | * to lose the other branches of this | |
324 | * merge, so we just keep going. | |
325 | */ | |
326 | pp = &parent->next; | |
327 | continue; | |
328 | } | |
a4a88b2b LT |
329 | parent->next = NULL; |
330 | commit->parents = parent; | |
331 | return; | |
332 | ||
8efdc326 FK |
333 | case REV_TREE_NEW: |
334 | if (revs->remove_empty_trees && | |
c4e05b1a | 335 | rev_same_tree_as_empty(revs, p->tree)) { |
c348f31a JH |
336 | /* We are adding all the specified |
337 | * paths from this parent, so the | |
338 | * history beyond this parent is not | |
339 | * interesting. Remove its parents | |
340 | * (they are grandparents for us). | |
341 | * IOW, we pretend this parent is a | |
342 | * "root" commit. | |
a41e109c | 343 | */ |
c348f31a JH |
344 | parse_commit(p); |
345 | p->parents = NULL; | |
a4a88b2b LT |
346 | } |
347 | /* fallthrough */ | |
8efdc326 | 348 | case REV_TREE_DIFFERENT: |
f3219fbb | 349 | tree_changed = 1; |
a4a88b2b LT |
350 | pp = &parent->next; |
351 | continue; | |
352 | } | |
353 | die("bad tree compare for commit %s", sha1_to_hex(commit->object.sha1)); | |
354 | } | |
6631c736 | 355 | if (tree_changed && !tree_same) |
f3219fbb | 356 | commit->object.flags |= TREECHANGE; |
a4a88b2b LT |
357 | } |
358 | ||
359 | static void add_parents_to_list(struct rev_info *revs, struct commit *commit, struct commit_list **list) | |
360 | { | |
361 | struct commit_list *parent = commit->parents; | |
577ed5c2 | 362 | unsigned left_flag; |
a4a88b2b | 363 | |
3381c790 LT |
364 | if (commit->object.flags & ADDED) |
365 | return; | |
366 | commit->object.flags |= ADDED; | |
367 | ||
a4a88b2b LT |
368 | /* |
369 | * If the commit is uninteresting, don't try to | |
370 | * prune parents - we want the maximal uninteresting | |
371 | * set. | |
372 | * | |
373 | * Normally we haven't parsed the parent | |
374 | * yet, so we won't have a parent of a parent | |
375 | * here. However, it may turn out that we've | |
376 | * reached this commit some other way (where it | |
377 | * wasn't uninteresting), in which case we need | |
378 | * to mark its parents recursively too.. | |
379 | */ | |
380 | if (commit->object.flags & UNINTERESTING) { | |
381 | while (parent) { | |
382 | struct commit *p = parent->item; | |
383 | parent = parent->next; | |
384 | parse_commit(p); | |
385 | p->object.flags |= UNINTERESTING; | |
386 | if (p->parents) | |
387 | mark_parents_uninteresting(p); | |
388 | if (p->object.flags & SEEN) | |
389 | continue; | |
390 | p->object.flags |= SEEN; | |
391 | insert_by_date(p, list); | |
392 | } | |
393 | return; | |
394 | } | |
395 | ||
396 | /* | |
397 | * Ok, the commit wasn't uninteresting. Try to | |
398 | * simplify the commit history and find the parent | |
399 | * that has no differences in the path set if one exists. | |
400 | */ | |
8efdc326 FK |
401 | if (revs->prune_fn) |
402 | revs->prune_fn(revs, commit); | |
a4a88b2b | 403 | |
ba1d4505 LT |
404 | if (revs->no_walk) |
405 | return; | |
406 | ||
577ed5c2 | 407 | left_flag = (commit->object.flags & SYMMETRIC_LEFT); |
a4a88b2b LT |
408 | parent = commit->parents; |
409 | while (parent) { | |
410 | struct commit *p = parent->item; | |
411 | ||
412 | parent = parent->next; | |
413 | ||
414 | parse_commit(p); | |
577ed5c2 | 415 | p->object.flags |= left_flag; |
a4a88b2b LT |
416 | if (p->object.flags & SEEN) |
417 | continue; | |
418 | p->object.flags |= SEEN; | |
419 | insert_by_date(p, list); | |
420 | } | |
421 | } | |
422 | ||
423 | static void limit_list(struct rev_info *revs) | |
424 | { | |
425 | struct commit_list *list = revs->commits; | |
426 | struct commit_list *newlist = NULL; | |
427 | struct commit_list **p = &newlist; | |
428 | ||
429 | while (list) { | |
430 | struct commit_list *entry = list; | |
431 | struct commit *commit = list->item; | |
432 | struct object *obj = &commit->object; | |
433 | ||
434 | list = list->next; | |
435 | free(entry); | |
436 | ||
437 | if (revs->max_age != -1 && (commit->date < revs->max_age)) | |
438 | obj->flags |= UNINTERESTING; | |
a4a88b2b LT |
439 | add_parents_to_list(revs, commit, &list); |
440 | if (obj->flags & UNINTERESTING) { | |
441 | mark_parents_uninteresting(commit); | |
442 | if (everybody_uninteresting(list)) | |
443 | break; | |
444 | continue; | |
445 | } | |
446 | if (revs->min_age != -1 && (commit->date > revs->min_age)) | |
447 | continue; | |
448 | p = &commit_list_insert(commit, p)->next; | |
449 | } | |
450 | revs->commits = newlist; | |
451 | } | |
452 | ||
63049292 JH |
453 | struct all_refs_cb { |
454 | int all_flags; | |
71b03b42 | 455 | int warned_bad_reflog; |
63049292 JH |
456 | struct rev_info *all_revs; |
457 | const char *name_for_errormsg; | |
458 | }; | |
ae563542 | 459 | |
8da19775 | 460 | static int handle_one_ref(const char *path, const unsigned char *sha1, int flag, void *cb_data) |
ae563542 | 461 | { |
63049292 JH |
462 | struct all_refs_cb *cb = cb_data; |
463 | struct object *object = get_reference(cb->all_revs, path, sha1, | |
464 | cb->all_flags); | |
3d1efd8f | 465 | add_pending_object(cb->all_revs, object, path); |
ae563542 LT |
466 | return 0; |
467 | } | |
468 | ||
469 | static void handle_all(struct rev_info *revs, unsigned flags) | |
470 | { | |
63049292 JH |
471 | struct all_refs_cb cb; |
472 | cb.all_revs = revs; | |
473 | cb.all_flags = flags; | |
474 | for_each_ref(handle_one_ref, &cb); | |
475 | } | |
476 | ||
71b03b42 | 477 | static void handle_one_reflog_commit(unsigned char *sha1, void *cb_data) |
63049292 JH |
478 | { |
479 | struct all_refs_cb *cb = cb_data; | |
71b03b42 SP |
480 | if (!is_null_sha1(sha1)) { |
481 | struct object *o = parse_object(sha1); | |
482 | if (o) { | |
483 | o->flags |= cb->all_flags; | |
484 | add_pending_object(cb->all_revs, o, ""); | |
485 | } | |
486 | else if (!cb->warned_bad_reflog) { | |
487 | warn("reflog of '%s' references pruned commits", | |
488 | cb->name_for_errormsg); | |
489 | cb->warned_bad_reflog = 1; | |
490 | } | |
63049292 | 491 | } |
71b03b42 SP |
492 | } |
493 | ||
883d60fa JS |
494 | static int handle_one_reflog_ent(unsigned char *osha1, unsigned char *nsha1, |
495 | const char *email, unsigned long timestamp, int tz, | |
496 | const char *message, void *cb_data) | |
71b03b42 SP |
497 | { |
498 | handle_one_reflog_commit(osha1, cb_data); | |
499 | handle_one_reflog_commit(nsha1, cb_data); | |
63049292 JH |
500 | return 0; |
501 | } | |
502 | ||
503 | static int handle_one_reflog(const char *path, const unsigned char *sha1, int flag, void *cb_data) | |
504 | { | |
505 | struct all_refs_cb *cb = cb_data; | |
71b03b42 | 506 | cb->warned_bad_reflog = 0; |
63049292 JH |
507 | cb->name_for_errormsg = path; |
508 | for_each_reflog_ent(path, handle_one_reflog_ent, cb_data); | |
509 | return 0; | |
510 | } | |
511 | ||
512 | static void handle_reflog(struct rev_info *revs, unsigned flags) | |
513 | { | |
514 | struct all_refs_cb cb; | |
515 | cb.all_revs = revs; | |
516 | cb.all_flags = flags; | |
25b51e2c | 517 | for_each_reflog(handle_one_reflog, &cb); |
ae563542 LT |
518 | } |
519 | ||
ea4a19e1 JH |
520 | static int add_parents_only(struct rev_info *revs, const char *arg, int flags) |
521 | { | |
522 | unsigned char sha1[20]; | |
523 | struct object *it; | |
524 | struct commit *commit; | |
525 | struct commit_list *parents; | |
526 | ||
527 | if (*arg == '^') { | |
528 | flags ^= UNINTERESTING; | |
529 | arg++; | |
530 | } | |
531 | if (get_sha1(arg, sha1)) | |
532 | return 0; | |
533 | while (1) { | |
534 | it = get_reference(revs, arg, sha1, 0); | |
1974632c | 535 | if (it->type != OBJ_TAG) |
ea4a19e1 | 536 | break; |
e702496e | 537 | hashcpy(sha1, ((struct tag*)it)->tagged->sha1); |
ea4a19e1 | 538 | } |
1974632c | 539 | if (it->type != OBJ_COMMIT) |
ea4a19e1 JH |
540 | return 0; |
541 | commit = (struct commit *)it; | |
542 | for (parents = commit->parents; parents; parents = parents->next) { | |
543 | it = &parents->item->object; | |
544 | it->flags |= flags; | |
545 | add_pending_object(revs, it, arg); | |
546 | } | |
547 | return 1; | |
548 | } | |
549 | ||
db6296a5 | 550 | void init_revisions(struct rev_info *revs, const char *prefix) |
8efdc326 FK |
551 | { |
552 | memset(revs, 0, sizeof(*revs)); | |
8e8f9987 | 553 | |
6b9c58f4 | 554 | revs->abbrev = DEFAULT_ABBREV; |
8e8f9987 | 555 | revs->ignore_merges = 1; |
9202434c | 556 | revs->simplify_history = 1; |
cd2bdc53 | 557 | revs->pruning.recursive = 1; |
dd47aa31 | 558 | revs->pruning.quiet = 1; |
cd2bdc53 LT |
559 | revs->pruning.add_remove = file_add_remove; |
560 | revs->pruning.change = file_change; | |
8efdc326 FK |
561 | revs->lifo = 1; |
562 | revs->dense = 1; | |
db6296a5 | 563 | revs->prefix = prefix; |
8efdc326 FK |
564 | revs->max_age = -1; |
565 | revs->min_age = -1; | |
d5db6c9e | 566 | revs->skip_count = -1; |
8efdc326 FK |
567 | revs->max_count = -1; |
568 | ||
569 | revs->prune_fn = NULL; | |
570 | revs->prune_data = NULL; | |
571 | ||
572 | revs->topo_setter = topo_sort_default_setter; | |
573 | revs->topo_getter = topo_sort_default_getter; | |
cd2bdc53 | 574 | |
cd2bdc53 LT |
575 | revs->commit_format = CMIT_FMT_DEFAULT; |
576 | ||
577 | diff_setup(&revs->diffopt); | |
8efdc326 FK |
578 | } |
579 | ||
0d2c9d67 RS |
580 | static void add_pending_commit_list(struct rev_info *revs, |
581 | struct commit_list *commit_list, | |
582 | unsigned int flags) | |
583 | { | |
584 | while (commit_list) { | |
585 | struct object *object = &commit_list->item->object; | |
586 | object->flags |= flags; | |
587 | add_pending_object(revs, object, sha1_to_hex(object->sha1)); | |
588 | commit_list = commit_list->next; | |
589 | } | |
590 | } | |
591 | ||
ae3e5e1e JH |
592 | static void prepare_show_merge(struct rev_info *revs) |
593 | { | |
594 | struct commit_list *bases; | |
595 | struct commit *head, *other; | |
596 | unsigned char sha1[20]; | |
597 | const char **prune = NULL; | |
598 | int i, prune_num = 1; /* counting terminating NULL */ | |
599 | ||
600 | if (get_sha1("HEAD", sha1) || !(head = lookup_commit(sha1))) | |
601 | die("--merge without HEAD?"); | |
602 | if (get_sha1("MERGE_HEAD", sha1) || !(other = lookup_commit(sha1))) | |
603 | die("--merge without MERGE_HEAD?"); | |
604 | add_pending_object(revs, &head->object, "HEAD"); | |
605 | add_pending_object(revs, &other->object, "MERGE_HEAD"); | |
606 | bases = get_merge_bases(head, other, 1); | |
607 | while (bases) { | |
608 | struct commit *it = bases->item; | |
609 | struct commit_list *n = bases->next; | |
610 | free(bases); | |
611 | bases = n; | |
612 | it->object.flags |= UNINTERESTING; | |
613 | add_pending_object(revs, &it->object, "(merge-base)"); | |
614 | } | |
615 | ||
616 | if (!active_nr) | |
617 | read_cache(); | |
618 | for (i = 0; i < active_nr; i++) { | |
619 | struct cache_entry *ce = active_cache[i]; | |
620 | if (!ce_stage(ce)) | |
621 | continue; | |
622 | if (ce_path_match(ce, revs->prune_data)) { | |
623 | prune_num++; | |
624 | prune = xrealloc(prune, sizeof(*prune) * prune_num); | |
625 | prune[prune_num-2] = ce->name; | |
626 | prune[prune_num-1] = NULL; | |
627 | } | |
628 | while ((i+1 < active_nr) && | |
629 | ce_same_name(ce, active_cache[i+1])) | |
630 | i++; | |
631 | } | |
632 | revs->prune_data = prune; | |
633 | } | |
634 | ||
5d6f0935 JH |
635 | int handle_revision_arg(const char *arg, struct rev_info *revs, |
636 | int flags, | |
637 | int cant_be_filename) | |
638 | { | |
639 | char *dotdot; | |
640 | struct object *object; | |
641 | unsigned char sha1[20]; | |
642 | int local_flags; | |
643 | ||
644 | dotdot = strstr(arg, ".."); | |
645 | if (dotdot) { | |
646 | unsigned char from_sha1[20]; | |
647 | const char *next = dotdot + 2; | |
648 | const char *this = arg; | |
649 | int symmetric = *next == '.'; | |
650 | unsigned int flags_exclude = flags ^ UNINTERESTING; | |
651 | ||
652 | *dotdot = 0; | |
653 | next += symmetric; | |
654 | ||
655 | if (!*next) | |
656 | next = "HEAD"; | |
657 | if (dotdot == arg) | |
658 | this = "HEAD"; | |
659 | if (!get_sha1(this, from_sha1) && | |
660 | !get_sha1(next, sha1)) { | |
661 | struct commit *a, *b; | |
662 | struct commit_list *exclude; | |
663 | ||
664 | a = lookup_commit_reference(from_sha1); | |
665 | b = lookup_commit_reference(sha1); | |
666 | if (!a || !b) { | |
667 | die(symmetric ? | |
668 | "Invalid symmetric difference expression %s...%s" : | |
669 | "Invalid revision range %s..%s", | |
670 | arg, next); | |
671 | } | |
672 | ||
673 | if (!cant_be_filename) { | |
674 | *dotdot = '.'; | |
675 | verify_non_filename(revs->prefix, arg); | |
676 | } | |
677 | ||
678 | if (symmetric) { | |
679 | exclude = get_merge_bases(a, b, 1); | |
680 | add_pending_commit_list(revs, exclude, | |
681 | flags_exclude); | |
682 | free_commit_list(exclude); | |
577ed5c2 | 683 | a->object.flags |= flags | SYMMETRIC_LEFT; |
5d6f0935 JH |
684 | } else |
685 | a->object.flags |= flags_exclude; | |
686 | b->object.flags |= flags; | |
687 | add_pending_object(revs, &a->object, this); | |
688 | add_pending_object(revs, &b->object, next); | |
689 | return 0; | |
690 | } | |
691 | *dotdot = '.'; | |
692 | } | |
693 | dotdot = strstr(arg, "^@"); | |
694 | if (dotdot && !dotdot[2]) { | |
695 | *dotdot = 0; | |
696 | if (add_parents_only(revs, arg, flags)) | |
697 | return 0; | |
698 | *dotdot = '^'; | |
699 | } | |
62476c8e JH |
700 | dotdot = strstr(arg, "^!"); |
701 | if (dotdot && !dotdot[2]) { | |
702 | *dotdot = 0; | |
703 | if (!add_parents_only(revs, arg, flags ^ UNINTERESTING)) | |
704 | *dotdot = '^'; | |
705 | } | |
706 | ||
5d6f0935 JH |
707 | local_flags = 0; |
708 | if (*arg == '^') { | |
709 | local_flags = UNINTERESTING; | |
710 | arg++; | |
711 | } | |
712 | if (get_sha1(arg, sha1)) | |
713 | return -1; | |
714 | if (!cant_be_filename) | |
715 | verify_non_filename(revs->prefix, arg); | |
716 | object = get_reference(revs, arg, sha1, flags ^ local_flags); | |
717 | add_pending_object(revs, object, arg); | |
718 | return 0; | |
719 | } | |
720 | ||
2d10c555 | 721 | static void add_grep(struct rev_info *revs, const char *ptn, enum grep_pat_token what) |
bd95fcd3 | 722 | { |
2d10c555 | 723 | if (!revs->grep_filter) { |
bd95fcd3 JH |
724 | struct grep_opt *opt = xcalloc(1, sizeof(*opt)); |
725 | opt->status_only = 1; | |
726 | opt->pattern_tail = &(opt->pattern_list); | |
727 | opt->regflags = REG_NEWLINE; | |
2d10c555 | 728 | revs->grep_filter = opt; |
bd95fcd3 | 729 | } |
2d10c555 JH |
730 | append_grep_pattern(revs->grep_filter, ptn, |
731 | "command line", 0, what); | |
732 | } | |
733 | ||
734 | static void add_header_grep(struct rev_info *revs, const char *field, const char *pattern) | |
735 | { | |
736 | char *pat; | |
737 | const char *prefix; | |
738 | int patlen, fldlen; | |
bd95fcd3 JH |
739 | |
740 | fldlen = strlen(field); | |
741 | patlen = strlen(pattern); | |
a2ed6ae4 LT |
742 | pat = xmalloc(patlen + fldlen + 10); |
743 | prefix = ".*"; | |
744 | if (*pattern == '^') { | |
745 | prefix = ""; | |
746 | pattern++; | |
747 | } | |
748 | sprintf(pat, "^%s %s%s", field, prefix, pattern); | |
2d10c555 | 749 | add_grep(revs, pat, GREP_PATTERN_HEAD); |
bd95fcd3 JH |
750 | } |
751 | ||
752 | static void add_message_grep(struct rev_info *revs, const char *pattern) | |
753 | { | |
2d10c555 | 754 | add_grep(revs, pattern, GREP_PATTERN_BODY); |
bd95fcd3 JH |
755 | } |
756 | ||
106d710b JH |
757 | static void add_ignore_packed(struct rev_info *revs, const char *name) |
758 | { | |
759 | int num = ++revs->num_ignore_packed; | |
760 | ||
761 | revs->ignore_packed = xrealloc(revs->ignore_packed, | |
762 | sizeof(const char **) * (num + 1)); | |
763 | revs->ignore_packed[num-1] = name; | |
764 | revs->ignore_packed[num] = NULL; | |
765 | } | |
766 | ||
ae563542 LT |
767 | /* |
768 | * Parse revision information, filling in the "rev_info" structure, | |
769 | * and removing the used arguments from the argument list. | |
770 | * | |
765ac8ec LT |
771 | * Returns the number of arguments left that weren't recognized |
772 | * (which are also moved to the head of the argument list) | |
ae563542 | 773 | */ |
a4a88b2b | 774 | int setup_revisions(int argc, const char **argv, struct rev_info *revs, const char *def) |
ae563542 | 775 | { |
ae3e5e1e | 776 | int i, flags, seen_dashdash, show_merge; |
765ac8ec | 777 | const char **unrecognized = argv + 1; |
ae563542 | 778 | int left = 1; |
70d0afba | 779 | int all_match = 0; |
ae563542 | 780 | |
ae563542 LT |
781 | /* First, search for "--" */ |
782 | seen_dashdash = 0; | |
783 | for (i = 1; i < argc; i++) { | |
784 | const char *arg = argv[i]; | |
785 | if (strcmp(arg, "--")) | |
786 | continue; | |
787 | argv[i] = NULL; | |
788 | argc = i; | |
8efdc326 | 789 | revs->prune_data = get_pathspec(revs->prefix, argv + i + 1); |
ae563542 LT |
790 | seen_dashdash = 1; |
791 | break; | |
792 | } | |
793 | ||
ae3e5e1e | 794 | flags = show_merge = 0; |
ae563542 | 795 | for (i = 1; i < argc; i++) { |
ae563542 | 796 | const char *arg = argv[i]; |
ae563542 | 797 | if (*arg == '-') { |
cd2bdc53 | 798 | int opts; |
cc44c765 | 799 | if (!prefixcmp(arg, "--max-count=")) { |
ae563542 LT |
800 | revs->max_count = atoi(arg + 12); |
801 | continue; | |
802 | } | |
cc44c765 | 803 | if (!prefixcmp(arg, "--skip=")) { |
d5db6c9e JH |
804 | revs->skip_count = atoi(arg + 7); |
805 | continue; | |
806 | } | |
de5f2bf3 | 807 | /* accept -<digit>, like traditional "head" */ |
64bc6e3d JH |
808 | if ((*arg == '-') && isdigit(arg[1])) { |
809 | revs->max_count = atoi(arg + 1); | |
810 | continue; | |
811 | } | |
812 | if (!strcmp(arg, "-n")) { | |
813 | if (argc <= i + 1) | |
814 | die("-n requires an argument"); | |
815 | revs->max_count = atoi(argv[++i]); | |
816 | continue; | |
817 | } | |
1968d77d | 818 | if (!prefixcmp(arg, "-n")) { |
64bc6e3d JH |
819 | revs->max_count = atoi(arg + 2); |
820 | continue; | |
821 | } | |
cc44c765 | 822 | if (!prefixcmp(arg, "--max-age=")) { |
ae563542 | 823 | revs->max_age = atoi(arg + 10); |
ae563542 LT |
824 | continue; |
825 | } | |
cc44c765 | 826 | if (!prefixcmp(arg, "--since=")) { |
fd751667 | 827 | revs->max_age = approxidate(arg + 8); |
fd751667 JH |
828 | continue; |
829 | } | |
cc44c765 | 830 | if (!prefixcmp(arg, "--after=")) { |
fd751667 | 831 | revs->max_age = approxidate(arg + 8); |
53069686 JH |
832 | continue; |
833 | } | |
cc44c765 | 834 | if (!prefixcmp(arg, "--min-age=")) { |
53069686 | 835 | revs->min_age = atoi(arg + 10); |
fd751667 JH |
836 | continue; |
837 | } | |
cc44c765 | 838 | if (!prefixcmp(arg, "--before=")) { |
fd751667 | 839 | revs->min_age = approxidate(arg + 9); |
fd751667 JH |
840 | continue; |
841 | } | |
cc44c765 | 842 | if (!prefixcmp(arg, "--until=")) { |
fd751667 | 843 | revs->min_age = approxidate(arg + 8); |
fd751667 JH |
844 | continue; |
845 | } | |
ae563542 LT |
846 | if (!strcmp(arg, "--all")) { |
847 | handle_all(revs, flags); | |
848 | continue; | |
849 | } | |
63049292 JH |
850 | if (!strcmp(arg, "--reflog")) { |
851 | handle_reflog(revs, flags); | |
852 | continue; | |
853 | } | |
084ae0a7 JS |
854 | if (!strcmp(arg, "-g") || |
855 | !strcmp(arg, "--walk-reflogs")) { | |
8860fd42 JS |
856 | init_reflog_walk(&revs->reflog_info); |
857 | continue; | |
858 | } | |
ae563542 LT |
859 | if (!strcmp(arg, "--not")) { |
860 | flags ^= UNINTERESTING; | |
861 | continue; | |
862 | } | |
863 | if (!strcmp(arg, "--default")) { | |
864 | if (++i >= argc) | |
865 | die("bad --default argument"); | |
866 | def = argv[i]; | |
867 | continue; | |
868 | } | |
ae3e5e1e JH |
869 | if (!strcmp(arg, "--merge")) { |
870 | show_merge = 1; | |
871 | continue; | |
872 | } | |
ae563542 LT |
873 | if (!strcmp(arg, "--topo-order")) { |
874 | revs->topo_order = 1; | |
875 | continue; | |
876 | } | |
877 | if (!strcmp(arg, "--date-order")) { | |
878 | revs->lifo = 0; | |
879 | revs->topo_order = 1; | |
880 | continue; | |
881 | } | |
7b0c9966 LT |
882 | if (!strcmp(arg, "--parents")) { |
883 | revs->parents = 1; | |
884 | continue; | |
885 | } | |
ae563542 LT |
886 | if (!strcmp(arg, "--dense")) { |
887 | revs->dense = 1; | |
888 | continue; | |
889 | } | |
890 | if (!strcmp(arg, "--sparse")) { | |
891 | revs->dense = 0; | |
892 | continue; | |
893 | } | |
894 | if (!strcmp(arg, "--remove-empty")) { | |
895 | revs->remove_empty_trees = 1; | |
896 | continue; | |
897 | } | |
5cdeae71 | 898 | if (!strcmp(arg, "--no-merges")) { |
765ac8ec LT |
899 | revs->no_merges = 1; |
900 | continue; | |
901 | } | |
384e99a4 JH |
902 | if (!strcmp(arg, "--boundary")) { |
903 | revs->boundary = 1; | |
904 | continue; | |
905 | } | |
8dce8235 JH |
906 | if (!strcmp(arg, "--left-right")) { |
907 | revs->left_right = 1; | |
74bd9029 JH |
908 | continue; |
909 | } | |
ae563542 LT |
910 | if (!strcmp(arg, "--objects")) { |
911 | revs->tag_objects = 1; | |
912 | revs->tree_objects = 1; | |
913 | revs->blob_objects = 1; | |
914 | continue; | |
915 | } | |
916 | if (!strcmp(arg, "--objects-edge")) { | |
917 | revs->tag_objects = 1; | |
918 | revs->tree_objects = 1; | |
919 | revs->blob_objects = 1; | |
920 | revs->edge_hint = 1; | |
921 | continue; | |
922 | } | |
d9a83684 LT |
923 | if (!strcmp(arg, "--unpacked")) { |
924 | revs->unpacked = 1; | |
106d710b JH |
925 | free(revs->ignore_packed); |
926 | revs->ignore_packed = NULL; | |
927 | revs->num_ignore_packed = 0; | |
928 | continue; | |
929 | } | |
cc44c765 | 930 | if (!prefixcmp(arg, "--unpacked=")) { |
106d710b JH |
931 | revs->unpacked = 1; |
932 | add_ignore_packed(revs, arg+11); | |
d9a83684 LT |
933 | continue; |
934 | } | |
cd2bdc53 LT |
935 | if (!strcmp(arg, "-r")) { |
936 | revs->diff = 1; | |
937 | revs->diffopt.recursive = 1; | |
938 | continue; | |
939 | } | |
940 | if (!strcmp(arg, "-t")) { | |
941 | revs->diff = 1; | |
942 | revs->diffopt.recursive = 1; | |
943 | revs->diffopt.tree_in_recursive = 1; | |
944 | continue; | |
945 | } | |
946 | if (!strcmp(arg, "-m")) { | |
947 | revs->ignore_merges = 0; | |
948 | continue; | |
949 | } | |
950 | if (!strcmp(arg, "-c")) { | |
951 | revs->diff = 1; | |
0fe7c1de | 952 | revs->dense_combined_merges = 0; |
cd2bdc53 LT |
953 | revs->combine_merges = 1; |
954 | continue; | |
955 | } | |
956 | if (!strcmp(arg, "--cc")) { | |
957 | revs->diff = 1; | |
958 | revs->dense_combined_merges = 1; | |
959 | revs->combine_merges = 1; | |
960 | continue; | |
961 | } | |
962 | if (!strcmp(arg, "-v")) { | |
963 | revs->verbose_header = 1; | |
cd2bdc53 LT |
964 | continue; |
965 | } | |
cc44c765 | 966 | if (!prefixcmp(arg, "--pretty")) { |
cd2bdc53 | 967 | revs->verbose_header = 1; |
cd2bdc53 LT |
968 | revs->commit_format = get_commit_format(arg+8); |
969 | continue; | |
970 | } | |
971 | if (!strcmp(arg, "--root")) { | |
972 | revs->show_root_diff = 1; | |
973 | continue; | |
974 | } | |
975 | if (!strcmp(arg, "--no-commit-id")) { | |
976 | revs->no_commit_id = 1; | |
977 | continue; | |
978 | } | |
979 | if (!strcmp(arg, "--always")) { | |
980 | revs->always_show_header = 1; | |
981 | continue; | |
982 | } | |
983 | if (!strcmp(arg, "--no-abbrev")) { | |
984 | revs->abbrev = 0; | |
985 | continue; | |
986 | } | |
987 | if (!strcmp(arg, "--abbrev")) { | |
988 | revs->abbrev = DEFAULT_ABBREV; | |
989 | continue; | |
990 | } | |
cc44c765 | 991 | if (!prefixcmp(arg, "--abbrev=")) { |
508d9e37 LT |
992 | revs->abbrev = strtoul(arg + 9, NULL, 10); |
993 | if (revs->abbrev < MINIMUM_ABBREV) | |
994 | revs->abbrev = MINIMUM_ABBREV; | |
995 | else if (revs->abbrev > 40) | |
996 | revs->abbrev = 40; | |
997 | continue; | |
998 | } | |
cd2bdc53 LT |
999 | if (!strcmp(arg, "--abbrev-commit")) { |
1000 | revs->abbrev_commit = 1; | |
1001 | continue; | |
1002 | } | |
1003 | if (!strcmp(arg, "--full-diff")) { | |
1004 | revs->diff = 1; | |
1005 | revs->full_diff = 1; | |
1006 | continue; | |
1007 | } | |
9202434c LT |
1008 | if (!strcmp(arg, "--full-history")) { |
1009 | revs->simplify_history = 0; | |
1010 | continue; | |
1011 | } | |
3dfb9278 JF |
1012 | if (!strcmp(arg, "--relative-date")) { |
1013 | revs->relative_date = 1; | |
1014 | continue; | |
1015 | } | |
2d10c555 JH |
1016 | |
1017 | /* | |
1018 | * Grepping the commit log | |
1019 | */ | |
cc44c765 | 1020 | if (!prefixcmp(arg, "--author=")) { |
bd95fcd3 JH |
1021 | add_header_grep(revs, "author", arg+9); |
1022 | continue; | |
1023 | } | |
cc44c765 | 1024 | if (!prefixcmp(arg, "--committer=")) { |
bd95fcd3 JH |
1025 | add_header_grep(revs, "committer", arg+12); |
1026 | continue; | |
1027 | } | |
cc44c765 | 1028 | if (!prefixcmp(arg, "--grep=")) { |
bd95fcd3 JH |
1029 | add_message_grep(revs, arg+7); |
1030 | continue; | |
1031 | } | |
70d0afba JH |
1032 | if (!strcmp(arg, "--all-match")) { |
1033 | all_match = 1; | |
1034 | continue; | |
1035 | } | |
cc44c765 | 1036 | if (!prefixcmp(arg, "--encoding=")) { |
7cbcf4d5 JH |
1037 | arg += 11; |
1038 | if (strcmp(arg, "none")) | |
567fb65e | 1039 | git_log_output_encoding = xstrdup(arg); |
7cbcf4d5 JH |
1040 | else |
1041 | git_log_output_encoding = ""; | |
1042 | continue; | |
1043 | } | |
9c5e66e9 JS |
1044 | if (!strcmp(arg, "--reverse")) { |
1045 | revs->reverse ^= 1; | |
1046 | continue; | |
1047 | } | |
2d10c555 | 1048 | |
cd2bdc53 LT |
1049 | opts = diff_opt_parse(&revs->diffopt, argv+i, argc-i); |
1050 | if (opts > 0) { | |
1051 | revs->diff = 1; | |
1052 | i += opts - 1; | |
1053 | continue; | |
1054 | } | |
ae563542 LT |
1055 | *unrecognized++ = arg; |
1056 | left++; | |
1057 | continue; | |
1058 | } | |
ae563542 | 1059 | |
5d6f0935 JH |
1060 | if (handle_revision_arg(arg, revs, flags, seen_dashdash)) { |
1061 | int j; | |
1062 | if (seen_dashdash || *arg == '^') | |
ae563542 LT |
1063 | die("bad revision '%s'", arg); |
1064 | ||
ea92f41f JH |
1065 | /* If we didn't have a "--": |
1066 | * (1) all filenames must exist; | |
1067 | * (2) all rev-args must not be interpretable | |
1068 | * as a valid filename. | |
1069 | * but the latter we have checked in the main loop. | |
1070 | */ | |
e23d0b4a LT |
1071 | for (j = i; j < argc; j++) |
1072 | verify_filename(revs->prefix, argv[j]); | |
1073 | ||
5d6f0935 JH |
1074 | revs->prune_data = get_pathspec(revs->prefix, |
1075 | argv + i); | |
ae563542 LT |
1076 | break; |
1077 | } | |
ae563542 | 1078 | } |
5d6f0935 | 1079 | |
ae3e5e1e JH |
1080 | if (show_merge) |
1081 | prepare_show_merge(revs); | |
1f1e895f | 1082 | if (def && !revs->pending.nr) { |
ae563542 | 1083 | unsigned char sha1[20]; |
cd2bdc53 | 1084 | struct object *object; |
31fff305 | 1085 | if (get_sha1(def, sha1)) |
ae563542 | 1086 | die("bad default revision '%s'", def); |
cd2bdc53 LT |
1087 | object = get_reference(revs, def, sha1, 0); |
1088 | add_pending_object(revs, object, def); | |
ae563542 | 1089 | } |
8efdc326 | 1090 | |
9dad9d2e | 1091 | if (revs->topo_order) |
53069686 JH |
1092 | revs->limited = 1; |
1093 | ||
8efdc326 | 1094 | if (revs->prune_data) { |
cd2bdc53 | 1095 | diff_tree_setup_paths(revs->prune_data, &revs->pruning); |
8efdc326 | 1096 | revs->prune_fn = try_to_simplify_commit; |
cd2bdc53 LT |
1097 | if (!revs->full_diff) |
1098 | diff_tree_setup_paths(revs->prune_data, &revs->diffopt); | |
8efdc326 | 1099 | } |
cd2bdc53 LT |
1100 | if (revs->combine_merges) { |
1101 | revs->ignore_merges = 0; | |
0e677e1a | 1102 | if (revs->dense_combined_merges && !revs->diffopt.output_format) |
cd2bdc53 LT |
1103 | revs->diffopt.output_format = DIFF_FORMAT_PATCH; |
1104 | } | |
cd2bdc53 | 1105 | revs->diffopt.abbrev = revs->abbrev; |
72ee96c0 JH |
1106 | if (diff_setup_done(&revs->diffopt) < 0) |
1107 | die("diff_setup_done failed"); | |
8efdc326 | 1108 | |
70d0afba JH |
1109 | if (revs->grep_filter) { |
1110 | revs->grep_filter->all_match = all_match; | |
2d10c555 | 1111 | compile_grep_patterns(revs->grep_filter); |
70d0afba | 1112 | } |
bd95fcd3 | 1113 | |
ae563542 LT |
1114 | return left; |
1115 | } | |
a4a88b2b LT |
1116 | |
1117 | void prepare_revision_walk(struct rev_info *revs) | |
1118 | { | |
1f1e895f | 1119 | int nr = revs->pending.nr; |
94d23673 | 1120 | struct object_array_entry *e, *list; |
cd2bdc53 | 1121 | |
94d23673 | 1122 | e = list = revs->pending.objects; |
1f1e895f LT |
1123 | revs->pending.nr = 0; |
1124 | revs->pending.alloc = 0; | |
1125 | revs->pending.objects = NULL; | |
1126 | while (--nr >= 0) { | |
94d23673 | 1127 | struct commit *commit = handle_commit(revs, e->item, e->name); |
cd2bdc53 LT |
1128 | if (commit) { |
1129 | if (!(commit->object.flags & SEEN)) { | |
1130 | commit->object.flags |= SEEN; | |
1131 | insert_by_date(commit, &revs->commits); | |
1132 | } | |
1133 | } | |
94d23673 | 1134 | e++; |
cd2bdc53 | 1135 | } |
94d23673 | 1136 | free(list); |
cd2bdc53 | 1137 | |
ba1d4505 LT |
1138 | if (revs->no_walk) |
1139 | return; | |
a4a88b2b LT |
1140 | if (revs->limited) |
1141 | limit_list(revs); | |
1142 | if (revs->topo_order) | |
8efdc326 FK |
1143 | sort_in_topological_order_fn(&revs->commits, revs->lifo, |
1144 | revs->topo_setter, | |
1145 | revs->topo_getter); | |
a4a88b2b LT |
1146 | } |
1147 | ||
3381c790 | 1148 | static int rewrite_one(struct rev_info *revs, struct commit **pp) |
765ac8ec LT |
1149 | { |
1150 | for (;;) { | |
1151 | struct commit *p = *pp; | |
3381c790 LT |
1152 | if (!revs->limited) |
1153 | add_parents_to_list(revs, p, &revs->commits); | |
6631c736 LT |
1154 | if (p->parents && p->parents->next) |
1155 | return 0; | |
765ac8ec LT |
1156 | if (p->object.flags & (TREECHANGE | UNINTERESTING)) |
1157 | return 0; | |
1158 | if (!p->parents) | |
1159 | return -1; | |
1160 | *pp = p->parents->item; | |
1161 | } | |
1162 | } | |
1163 | ||
3381c790 | 1164 | static void rewrite_parents(struct rev_info *revs, struct commit *commit) |
765ac8ec LT |
1165 | { |
1166 | struct commit_list **pp = &commit->parents; | |
1167 | while (*pp) { | |
1168 | struct commit_list *parent = *pp; | |
3381c790 | 1169 | if (rewrite_one(revs, &parent->item) < 0) { |
765ac8ec LT |
1170 | *pp = parent->next; |
1171 | continue; | |
1172 | } | |
1173 | pp = &parent->next; | |
1174 | } | |
1175 | } | |
1176 | ||
8ecae9b0 JH |
1177 | static int commit_match(struct commit *commit, struct rev_info *opt) |
1178 | { | |
2d10c555 | 1179 | if (!opt->grep_filter) |
8ecae9b0 | 1180 | return 1; |
2d10c555 JH |
1181 | return grep_buffer(opt->grep_filter, |
1182 | NULL, /* we say nothing, not even filename */ | |
1183 | commit->buffer, strlen(commit->buffer)); | |
8ecae9b0 JH |
1184 | } |
1185 | ||
d5db6c9e | 1186 | static struct commit *get_revision_1(struct rev_info *revs) |
a4a88b2b | 1187 | { |
d5db6c9e | 1188 | if (!revs->commits) |
a4a88b2b | 1189 | return NULL; |
a4a88b2b | 1190 | |
765ac8ec | 1191 | do { |
cb115748 LT |
1192 | struct commit_list *entry = revs->commits; |
1193 | struct commit *commit = entry->item; | |
ea5ed3ab | 1194 | |
cb115748 LT |
1195 | revs->commits = entry->next; |
1196 | free(entry); | |
2a0925be | 1197 | |
8860fd42 JS |
1198 | if (revs->reflog_info) |
1199 | fake_reflog_parent(revs->reflog_info, commit); | |
1200 | ||
2a0925be LT |
1201 | /* |
1202 | * If we haven't done the list limiting, we need to look at | |
be7db6e5 LT |
1203 | * the parents here. We also need to do the date-based limiting |
1204 | * that we'd otherwise have done in limit_list(). | |
2a0925be | 1205 | */ |
be7db6e5 | 1206 | if (!revs->limited) { |
744f4985 | 1207 | if (revs->max_age != -1 && |
86ab4906 JH |
1208 | (commit->date < revs->max_age)) |
1209 | continue; | |
1210 | add_parents_to_list(revs, commit, &revs->commits); | |
be7db6e5 | 1211 | } |
384e99a4 | 1212 | if (commit->object.flags & SHOWN) |
2a0925be | 1213 | continue; |
1b65a5aa | 1214 | |
744f4985 JH |
1215 | if (revs->unpacked && has_sha1_pack(commit->object.sha1, |
1216 | revs->ignore_packed)) | |
1217 | continue; | |
1218 | ||
1b65a5aa | 1219 | if (commit->object.flags & UNINTERESTING) |
2a0925be | 1220 | continue; |
765ac8ec | 1221 | if (revs->min_age != -1 && (commit->date > revs->min_age)) |
2a0925be | 1222 | continue; |
384e99a4 JH |
1223 | if (revs->no_merges && |
1224 | commit->parents && commit->parents->next) | |
2a0925be | 1225 | continue; |
8ecae9b0 JH |
1226 | if (!commit_match(commit, revs)) |
1227 | continue; | |
8efdc326 | 1228 | if (revs->prune_fn && revs->dense) { |
6631c736 LT |
1229 | /* Commit without changes? */ |
1230 | if (!(commit->object.flags & TREECHANGE)) { | |
1231 | /* drop merges unless we want parenthood */ | |
1232 | if (!revs->parents) | |
1233 | continue; | |
1234 | /* non-merge - always ignore it */ | |
02d3dca3 | 1235 | if (!commit->parents || !commit->parents->next) |
6631c736 LT |
1236 | continue; |
1237 | } | |
2a0925be | 1238 | if (revs->parents) |
3381c790 | 1239 | rewrite_parents(revs, commit); |
384e99a4 | 1240 | } |
765ac8ec LT |
1241 | return commit; |
1242 | } while (revs->commits); | |
1243 | return NULL; | |
1244 | } | |
d5db6c9e | 1245 | |
86ab4906 JH |
1246 | static void gc_boundary(struct object_array *array) |
1247 | { | |
1248 | unsigned nr = array->nr; | |
1249 | unsigned alloc = array->alloc; | |
1250 | struct object_array_entry *objects = array->objects; | |
1251 | ||
1252 | if (alloc <= nr) { | |
1253 | unsigned i, j; | |
1254 | for (i = j = 0; i < nr; i++) { | |
1255 | if (objects[i].item->flags & SHOWN) | |
1256 | continue; | |
1257 | if (i != j) | |
1258 | objects[j] = objects[i]; | |
1259 | j++; | |
1260 | } | |
892ae6bf | 1261 | for (i = j; i < nr; i++) |
86ab4906 JH |
1262 | objects[i].item = NULL; |
1263 | array->nr = j; | |
1264 | } | |
1265 | } | |
1266 | ||
d5db6c9e JH |
1267 | struct commit *get_revision(struct rev_info *revs) |
1268 | { | |
1269 | struct commit *c = NULL; | |
86ab4906 JH |
1270 | struct commit_list *l; |
1271 | ||
1272 | if (revs->boundary == 2) { | |
1273 | unsigned i; | |
1274 | struct object_array *array = &revs->boundary_commits; | |
1275 | struct object_array_entry *objects = array->objects; | |
1276 | for (i = 0; i < array->nr; i++) { | |
1277 | c = (struct commit *)(objects[i].item); | |
1278 | if (!c) | |
1279 | continue; | |
1280 | if (!(c->object.flags & CHILD_SHOWN)) | |
1281 | continue; | |
1282 | if (!(c->object.flags & SHOWN)) | |
1283 | break; | |
9c5e66e9 | 1284 | } |
86ab4906 | 1285 | if (array->nr <= i) |
9c5e66e9 | 1286 | return NULL; |
86ab4906 JH |
1287 | |
1288 | c->object.flags |= SHOWN | BOUNDARY; | |
9c5e66e9 JS |
1289 | return c; |
1290 | } | |
1291 | ||
86ab4906 | 1292 | if (revs->reverse) { |
c33d8593 JH |
1293 | int limit = -1; |
1294 | ||
1295 | if (0 <= revs->max_count) { | |
1296 | limit = revs->max_count; | |
1297 | if (0 < revs->skip_count) | |
1298 | limit += revs->skip_count; | |
1299 | } | |
86ab4906 | 1300 | l = NULL; |
c33d8593 | 1301 | while ((c = get_revision_1(revs))) { |
86ab4906 | 1302 | commit_list_insert(c, &l); |
c33d8593 JH |
1303 | if ((0 < limit) && !--limit) |
1304 | break; | |
1305 | } | |
86ab4906 JH |
1306 | revs->commits = l; |
1307 | revs->reverse = 0; | |
c33d8593 | 1308 | revs->max_count = -1; |
2b064697 | 1309 | c = NULL; |
d5db6c9e JH |
1310 | } |
1311 | ||
86ab4906 JH |
1312 | /* |
1313 | * Now pick up what they want to give us | |
1314 | */ | |
8839ac94 JH |
1315 | c = get_revision_1(revs); |
1316 | if (c) { | |
1317 | while (0 < revs->skip_count) { | |
1318 | revs->skip_count--; | |
1319 | c = get_revision_1(revs); | |
1320 | if (!c) | |
1321 | break; | |
1322 | } | |
86ab4906 JH |
1323 | } |
1324 | ||
1325 | /* | |
1326 | * Check the max_count. | |
1327 | */ | |
d5db6c9e JH |
1328 | switch (revs->max_count) { |
1329 | case -1: | |
1330 | break; | |
1331 | case 0: | |
86ab4906 JH |
1332 | c = NULL; |
1333 | break; | |
d5db6c9e JH |
1334 | default: |
1335 | revs->max_count--; | |
1336 | } | |
86ab4906 | 1337 | |
c33d8593 JH |
1338 | if (c) |
1339 | c->object.flags |= SHOWN; | |
1340 | ||
1341 | if (!revs->boundary) { | |
d5db6c9e | 1342 | return c; |
c33d8593 | 1343 | } |
86ab4906 JH |
1344 | |
1345 | if (!c) { | |
1346 | /* | |
1347 | * get_revision_1() runs out the commits, and | |
1348 | * we are done computing the boundaries. | |
1349 | * switch to boundary commits output mode. | |
1350 | */ | |
1351 | revs->boundary = 2; | |
1352 | return get_revision(revs); | |
1353 | } | |
1354 | ||
1355 | /* | |
1356 | * boundary commits are the commits that are parents of the | |
1357 | * ones we got from get_revision_1() but they themselves are | |
1358 | * not returned from get_revision_1(). Before returning | |
1359 | * 'c', we need to mark its parents that they could be boundaries. | |
1360 | */ | |
1361 | ||
1362 | for (l = c->parents; l; l = l->next) { | |
1363 | struct object *p; | |
1364 | p = &(l->item->object); | |
c33d8593 | 1365 | if (p->flags & (CHILD_SHOWN | SHOWN)) |
86ab4906 JH |
1366 | continue; |
1367 | p->flags |= CHILD_SHOWN; | |
1368 | gc_boundary(&revs->boundary_commits); | |
1369 | add_object_array(p, NULL, &revs->boundary_commits); | |
1370 | } | |
1371 | ||
1372 | return c; | |
d5db6c9e | 1373 | } |