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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" |
d7a17cad | 11 | #include "patch-ids.h" |
ae563542 LT |
12 | |
13 | static char *path_name(struct name_path *path, const char *name) | |
14 | { | |
15 | struct name_path *p; | |
16 | char *n, *m; | |
17 | int nlen = strlen(name); | |
18 | int len = nlen + 1; | |
19 | ||
20 | for (p = path; p; p = p->up) { | |
21 | if (p->elem_len) | |
22 | len += p->elem_len + 1; | |
23 | } | |
24 | n = xmalloc(len); | |
25 | m = n + len - (nlen + 1); | |
26 | strcpy(m, name); | |
27 | for (p = path; p; p = p->up) { | |
28 | if (p->elem_len) { | |
29 | m -= p->elem_len + 1; | |
30 | memcpy(m, p->elem, p->elem_len); | |
31 | m[p->elem_len] = '/'; | |
32 | } | |
33 | } | |
34 | return n; | |
35 | } | |
36 | ||
1f1e895f LT |
37 | void add_object(struct object *obj, |
38 | struct object_array *p, | |
39 | struct name_path *path, | |
40 | const char *name) | |
ae563542 | 41 | { |
1f1e895f | 42 | add_object_array(obj, path_name(path, name), p); |
ae563542 LT |
43 | } |
44 | ||
45 | static void mark_blob_uninteresting(struct blob *blob) | |
46 | { | |
47 | if (blob->object.flags & UNINTERESTING) | |
48 | return; | |
49 | blob->object.flags |= UNINTERESTING; | |
50 | } | |
51 | ||
52 | void mark_tree_uninteresting(struct tree *tree) | |
53 | { | |
f75e53ed | 54 | struct tree_desc desc; |
4c068a98 | 55 | struct name_entry entry; |
ae563542 | 56 | struct object *obj = &tree->object; |
ae563542 LT |
57 | |
58 | if (obj->flags & UNINTERESTING) | |
59 | return; | |
60 | obj->flags |= UNINTERESTING; | |
61 | if (!has_sha1_file(obj->sha1)) | |
62 | return; | |
63 | if (parse_tree(tree) < 0) | |
64 | die("bad tree %s", sha1_to_hex(obj->sha1)); | |
f75e53ed | 65 | |
6fda5e51 | 66 | init_tree_desc(&desc, tree->buffer, tree->size); |
4c068a98 LT |
67 | while (tree_entry(&desc, &entry)) { |
68 | if (S_ISDIR(entry.mode)) | |
69 | mark_tree_uninteresting(lookup_tree(entry.sha1)); | |
ae563542 | 70 | else |
4c068a98 | 71 | mark_blob_uninteresting(lookup_blob(entry.sha1)); |
ae563542 | 72 | } |
f75e53ed LT |
73 | |
74 | /* | |
75 | * We don't care about the tree any more | |
76 | * after it has been marked uninteresting. | |
77 | */ | |
78 | free(tree->buffer); | |
79 | tree->buffer = NULL; | |
ae563542 LT |
80 | } |
81 | ||
82 | void mark_parents_uninteresting(struct commit *commit) | |
83 | { | |
84 | struct commit_list *parents = commit->parents; | |
85 | ||
86 | while (parents) { | |
87 | struct commit *commit = parents->item; | |
d2c4af73 MU |
88 | if (!(commit->object.flags & UNINTERESTING)) { |
89 | commit->object.flags |= UNINTERESTING; | |
ae563542 | 90 | |
d2c4af73 MU |
91 | /* |
92 | * Normally we haven't parsed the parent | |
93 | * yet, so we won't have a parent of a parent | |
94 | * here. However, it may turn out that we've | |
95 | * reached this commit some other way (where it | |
96 | * wasn't uninteresting), in which case we need | |
97 | * to mark its parents recursively too.. | |
98 | */ | |
99 | if (commit->parents) | |
100 | mark_parents_uninteresting(commit); | |
101 | } | |
ae563542 LT |
102 | |
103 | /* | |
104 | * A missing commit is ok iff its parent is marked | |
105 | * uninteresting. | |
106 | * | |
107 | * We just mark such a thing parsed, so that when | |
108 | * it is popped next time around, we won't be trying | |
109 | * to parse it and get an error. | |
110 | */ | |
111 | if (!has_sha1_file(commit->object.sha1)) | |
112 | commit->object.parsed = 1; | |
113 | parents = parents->next; | |
114 | } | |
115 | } | |
116 | ||
1f1e895f | 117 | void add_pending_object(struct rev_info *revs, struct object *obj, const char *name) |
bb6c2fba MK |
118 | { |
119 | add_pending_object_with_mode(revs, obj, name, S_IFINVALID); | |
120 | } | |
121 | ||
122 | void add_pending_object_with_mode(struct rev_info *revs, struct object *obj, const char *name, unsigned mode) | |
ae563542 | 123 | { |
aa27e461 LT |
124 | if (revs->no_walk && (obj->flags & UNINTERESTING)) |
125 | die("object ranges do not make sense when not walking revisions"); | |
bb6c2fba | 126 | add_object_array_with_mode(obj, name, &revs->pending, mode); |
8860fd42 JS |
127 | if (revs->reflog_info && obj->type == OBJ_COMMIT) |
128 | add_reflog_for_walk(revs->reflog_info, | |
129 | (struct commit *)obj, name); | |
ae563542 LT |
130 | } |
131 | ||
cd2bdc53 | 132 | static struct object *get_reference(struct rev_info *revs, const char *name, const unsigned char *sha1, unsigned int flags) |
ae563542 LT |
133 | { |
134 | struct object *object; | |
135 | ||
136 | object = parse_object(sha1); | |
137 | if (!object) | |
138 | die("bad object %s", name); | |
cd2bdc53 LT |
139 | object->flags |= flags; |
140 | return object; | |
141 | } | |
142 | ||
143 | static struct commit *handle_commit(struct rev_info *revs, struct object *object, const char *name) | |
144 | { | |
145 | unsigned long flags = object->flags; | |
ae563542 LT |
146 | |
147 | /* | |
148 | * Tag object? Look what it points to.. | |
149 | */ | |
1974632c | 150 | while (object->type == OBJ_TAG) { |
ae563542 | 151 | struct tag *tag = (struct tag *) object; |
cd2bdc53 | 152 | if (revs->tag_objects && !(flags & UNINTERESTING)) |
ae563542 LT |
153 | add_pending_object(revs, object, tag->tag); |
154 | object = parse_object(tag->tagged->sha1); | |
155 | if (!object) | |
156 | die("bad object %s", sha1_to_hex(tag->tagged->sha1)); | |
157 | } | |
158 | ||
159 | /* | |
160 | * Commit object? Just return it, we'll do all the complex | |
161 | * reachability crud. | |
162 | */ | |
1974632c | 163 | if (object->type == OBJ_COMMIT) { |
ae563542 | 164 | struct commit *commit = (struct commit *)object; |
ae563542 LT |
165 | if (parse_commit(commit) < 0) |
166 | die("unable to parse commit %s", name); | |
d9a83684 | 167 | if (flags & UNINTERESTING) { |
4262c1b0 | 168 | commit->object.flags |= UNINTERESTING; |
ae563542 | 169 | mark_parents_uninteresting(commit); |
d9a83684 LT |
170 | revs->limited = 1; |
171 | } | |
ae563542 LT |
172 | return commit; |
173 | } | |
174 | ||
175 | /* | |
176 | * Tree object? Either mark it uniniteresting, or add it | |
177 | * to the list of objects to look at later.. | |
178 | */ | |
1974632c | 179 | if (object->type == OBJ_TREE) { |
ae563542 LT |
180 | struct tree *tree = (struct tree *)object; |
181 | if (!revs->tree_objects) | |
182 | return NULL; | |
183 | if (flags & UNINTERESTING) { | |
184 | mark_tree_uninteresting(tree); | |
185 | return NULL; | |
186 | } | |
187 | add_pending_object(revs, object, ""); | |
188 | return NULL; | |
189 | } | |
190 | ||
191 | /* | |
192 | * Blob object? You know the drill by now.. | |
193 | */ | |
1974632c | 194 | if (object->type == OBJ_BLOB) { |
ae563542 LT |
195 | struct blob *blob = (struct blob *)object; |
196 | if (!revs->blob_objects) | |
197 | return NULL; | |
198 | if (flags & UNINTERESTING) { | |
199 | mark_blob_uninteresting(blob); | |
200 | return NULL; | |
201 | } | |
202 | add_pending_object(revs, object, ""); | |
203 | return NULL; | |
204 | } | |
205 | die("%s is unknown object", name); | |
206 | } | |
207 | ||
a4a88b2b LT |
208 | static int everybody_uninteresting(struct commit_list *orig) |
209 | { | |
210 | struct commit_list *list = orig; | |
211 | while (list) { | |
212 | struct commit *commit = list->item; | |
213 | list = list->next; | |
214 | if (commit->object.flags & UNINTERESTING) | |
215 | continue; | |
216 | return 0; | |
217 | } | |
218 | return 1; | |
219 | } | |
220 | ||
0a4ba7f8 JH |
221 | /* |
222 | * The goal is to get REV_TREE_NEW as the result only if the | |
223 | * diff consists of all '+' (and no other changes), and | |
224 | * REV_TREE_DIFFERENT otherwise (of course if the trees are | |
225 | * the same we want REV_TREE_SAME). That means that once we | |
226 | * get to REV_TREE_DIFFERENT, we do not have to look any further. | |
227 | */ | |
8efdc326 | 228 | static int tree_difference = REV_TREE_SAME; |
a4a88b2b LT |
229 | |
230 | static void file_add_remove(struct diff_options *options, | |
231 | int addremove, unsigned mode, | |
232 | const unsigned char *sha1, | |
233 | const char *base, const char *path) | |
234 | { | |
8efdc326 | 235 | int diff = REV_TREE_DIFFERENT; |
a4a88b2b LT |
236 | |
237 | /* | |
8efdc326 FK |
238 | * Is it an add of a new file? It means that the old tree |
239 | * didn't have it at all, so we will turn "REV_TREE_SAME" -> | |
240 | * "REV_TREE_NEW", but leave any "REV_TREE_DIFFERENT" alone | |
241 | * (and if it already was "REV_TREE_NEW", we'll keep it | |
242 | * "REV_TREE_NEW" of course). | |
a4a88b2b LT |
243 | */ |
244 | if (addremove == '+') { | |
245 | diff = tree_difference; | |
8efdc326 | 246 | if (diff != REV_TREE_SAME) |
a4a88b2b | 247 | return; |
8efdc326 | 248 | diff = REV_TREE_NEW; |
a4a88b2b LT |
249 | } |
250 | tree_difference = diff; | |
dd47aa31 JH |
251 | if (tree_difference == REV_TREE_DIFFERENT) |
252 | options->has_changes = 1; | |
a4a88b2b LT |
253 | } |
254 | ||
255 | static void file_change(struct diff_options *options, | |
256 | unsigned old_mode, unsigned new_mode, | |
257 | const unsigned char *old_sha1, | |
258 | const unsigned char *new_sha1, | |
259 | const char *base, const char *path) | |
260 | { | |
8efdc326 | 261 | tree_difference = REV_TREE_DIFFERENT; |
dd47aa31 | 262 | options->has_changes = 1; |
a4a88b2b LT |
263 | } |
264 | ||
c4e05b1a | 265 | int rev_compare_tree(struct rev_info *revs, struct tree *t1, struct tree *t2) |
a4a88b2b LT |
266 | { |
267 | if (!t1) | |
8efdc326 | 268 | return REV_TREE_NEW; |
a4a88b2b | 269 | if (!t2) |
8efdc326 FK |
270 | return REV_TREE_DIFFERENT; |
271 | tree_difference = REV_TREE_SAME; | |
dd47aa31 | 272 | revs->pruning.has_changes = 0; |
c4e05b1a | 273 | if (diff_tree_sha1(t1->object.sha1, t2->object.sha1, "", |
cd2bdc53 | 274 | &revs->pruning) < 0) |
8efdc326 | 275 | return REV_TREE_DIFFERENT; |
a4a88b2b LT |
276 | return tree_difference; |
277 | } | |
278 | ||
c4e05b1a | 279 | int rev_same_tree_as_empty(struct rev_info *revs, struct tree *t1) |
a4a88b2b LT |
280 | { |
281 | int retval; | |
282 | void *tree; | |
6fda5e51 | 283 | unsigned long size; |
a4a88b2b LT |
284 | struct tree_desc empty, real; |
285 | ||
286 | if (!t1) | |
287 | return 0; | |
288 | ||
6fda5e51 | 289 | tree = read_object_with_reference(t1->object.sha1, tree_type, &size, NULL); |
a4a88b2b LT |
290 | if (!tree) |
291 | return 0; | |
6fda5e51 LT |
292 | init_tree_desc(&real, tree, size); |
293 | init_tree_desc(&empty, "", 0); | |
a4a88b2b | 294 | |
0a4ba7f8 | 295 | tree_difference = REV_TREE_SAME; |
dd47aa31 | 296 | revs->pruning.has_changes = 0; |
cd2bdc53 | 297 | retval = diff_tree(&empty, &real, "", &revs->pruning); |
a4a88b2b LT |
298 | free(tree); |
299 | ||
0a4ba7f8 | 300 | return retval >= 0 && (tree_difference == REV_TREE_SAME); |
a4a88b2b LT |
301 | } |
302 | ||
303 | static void try_to_simplify_commit(struct rev_info *revs, struct commit *commit) | |
304 | { | |
305 | struct commit_list **pp, *parent; | |
6631c736 | 306 | int tree_changed = 0, tree_same = 0; |
a4a88b2b LT |
307 | |
308 | if (!commit->tree) | |
309 | return; | |
310 | ||
311 | if (!commit->parents) { | |
c4e05b1a | 312 | if (!rev_same_tree_as_empty(revs, commit->tree)) |
a4a88b2b LT |
313 | commit->object.flags |= TREECHANGE; |
314 | return; | |
315 | } | |
316 | ||
317 | pp = &commit->parents; | |
318 | while ((parent = *pp) != NULL) { | |
319 | struct commit *p = parent->item; | |
320 | ||
cc0e6c5a AR |
321 | if (parse_commit(p) < 0) |
322 | die("cannot simplify commit %s (because of %s)", | |
323 | sha1_to_hex(commit->object.sha1), | |
324 | sha1_to_hex(p->object.sha1)); | |
c4e05b1a | 325 | switch (rev_compare_tree(revs, p->tree, commit->tree)) { |
8efdc326 | 326 | case REV_TREE_SAME: |
6631c736 | 327 | tree_same = 1; |
9202434c | 328 | if (!revs->simplify_history || (p->object.flags & UNINTERESTING)) { |
f3219fbb JH |
329 | /* Even if a merge with an uninteresting |
330 | * side branch brought the entire change | |
331 | * we are interested in, we do not want | |
332 | * to lose the other branches of this | |
333 | * merge, so we just keep going. | |
334 | */ | |
335 | pp = &parent->next; | |
336 | continue; | |
337 | } | |
a4a88b2b LT |
338 | parent->next = NULL; |
339 | commit->parents = parent; | |
340 | return; | |
341 | ||
8efdc326 FK |
342 | case REV_TREE_NEW: |
343 | if (revs->remove_empty_trees && | |
c4e05b1a | 344 | rev_same_tree_as_empty(revs, p->tree)) { |
c348f31a JH |
345 | /* We are adding all the specified |
346 | * paths from this parent, so the | |
347 | * history beyond this parent is not | |
348 | * interesting. Remove its parents | |
349 | * (they are grandparents for us). | |
350 | * IOW, we pretend this parent is a | |
351 | * "root" commit. | |
a41e109c | 352 | */ |
cc0e6c5a AR |
353 | if (parse_commit(p) < 0) |
354 | die("cannot simplify commit %s (invalid %s)", | |
355 | sha1_to_hex(commit->object.sha1), | |
356 | sha1_to_hex(p->object.sha1)); | |
c348f31a | 357 | p->parents = NULL; |
a4a88b2b LT |
358 | } |
359 | /* fallthrough */ | |
8efdc326 | 360 | case REV_TREE_DIFFERENT: |
f3219fbb | 361 | tree_changed = 1; |
a4a88b2b LT |
362 | pp = &parent->next; |
363 | continue; | |
364 | } | |
365 | die("bad tree compare for commit %s", sha1_to_hex(commit->object.sha1)); | |
366 | } | |
6631c736 | 367 | if (tree_changed && !tree_same) |
f3219fbb | 368 | commit->object.flags |= TREECHANGE; |
a4a88b2b LT |
369 | } |
370 | ||
cc0e6c5a | 371 | static int add_parents_to_list(struct rev_info *revs, struct commit *commit, struct commit_list **list) |
a4a88b2b LT |
372 | { |
373 | struct commit_list *parent = commit->parents; | |
577ed5c2 | 374 | unsigned left_flag; |
0053e902 | 375 | int add, rest; |
a4a88b2b | 376 | |
3381c790 | 377 | if (commit->object.flags & ADDED) |
cc0e6c5a | 378 | return 0; |
3381c790 LT |
379 | commit->object.flags |= ADDED; |
380 | ||
a4a88b2b LT |
381 | /* |
382 | * If the commit is uninteresting, don't try to | |
383 | * prune parents - we want the maximal uninteresting | |
384 | * set. | |
385 | * | |
386 | * Normally we haven't parsed the parent | |
387 | * yet, so we won't have a parent of a parent | |
388 | * here. However, it may turn out that we've | |
389 | * reached this commit some other way (where it | |
390 | * wasn't uninteresting), in which case we need | |
391 | * to mark its parents recursively too.. | |
392 | */ | |
393 | if (commit->object.flags & UNINTERESTING) { | |
394 | while (parent) { | |
395 | struct commit *p = parent->item; | |
396 | parent = parent->next; | |
cc0e6c5a AR |
397 | if (parse_commit(p) < 0) |
398 | return -1; | |
a4a88b2b LT |
399 | p->object.flags |= UNINTERESTING; |
400 | if (p->parents) | |
401 | mark_parents_uninteresting(p); | |
402 | if (p->object.flags & SEEN) | |
403 | continue; | |
404 | p->object.flags |= SEEN; | |
405 | insert_by_date(p, list); | |
406 | } | |
cc0e6c5a | 407 | return 0; |
a4a88b2b LT |
408 | } |
409 | ||
410 | /* | |
411 | * Ok, the commit wasn't uninteresting. Try to | |
412 | * simplify the commit history and find the parent | |
413 | * that has no differences in the path set if one exists. | |
414 | */ | |
8efdc326 FK |
415 | if (revs->prune_fn) |
416 | revs->prune_fn(revs, commit); | |
a4a88b2b | 417 | |
ba1d4505 | 418 | if (revs->no_walk) |
cc0e6c5a | 419 | return 0; |
ba1d4505 | 420 | |
577ed5c2 | 421 | left_flag = (commit->object.flags & SYMMETRIC_LEFT); |
0053e902 JH |
422 | |
423 | rest = !revs->first_parent_only; | |
424 | for (parent = commit->parents, add = 1; parent; add = rest) { | |
a4a88b2b LT |
425 | struct commit *p = parent->item; |
426 | ||
427 | parent = parent->next; | |
cc0e6c5a AR |
428 | if (parse_commit(p) < 0) |
429 | return -1; | |
577ed5c2 | 430 | p->object.flags |= left_flag; |
a4a88b2b LT |
431 | if (p->object.flags & SEEN) |
432 | continue; | |
433 | p->object.flags |= SEEN; | |
0053e902 JH |
434 | if (add) |
435 | insert_by_date(p, list); | |
a4a88b2b | 436 | } |
cc0e6c5a | 437 | return 0; |
a4a88b2b LT |
438 | } |
439 | ||
d7a17cad JH |
440 | static void cherry_pick_list(struct commit_list *list) |
441 | { | |
442 | struct commit_list *p; | |
443 | int left_count = 0, right_count = 0; | |
444 | int left_first; | |
445 | struct patch_ids ids; | |
446 | ||
447 | /* First count the commits on the left and on the right */ | |
448 | for (p = list; p; p = p->next) { | |
449 | struct commit *commit = p->item; | |
450 | unsigned flags = commit->object.flags; | |
451 | if (flags & BOUNDARY) | |
452 | ; | |
453 | else if (flags & SYMMETRIC_LEFT) | |
454 | left_count++; | |
455 | else | |
456 | right_count++; | |
457 | } | |
458 | ||
459 | left_first = left_count < right_count; | |
460 | init_patch_ids(&ids); | |
461 | ||
462 | /* Compute patch-ids for one side */ | |
463 | for (p = list; p; p = p->next) { | |
464 | struct commit *commit = p->item; | |
465 | unsigned flags = commit->object.flags; | |
466 | ||
467 | if (flags & BOUNDARY) | |
468 | continue; | |
469 | /* | |
470 | * If we have fewer left, left_first is set and we omit | |
471 | * commits on the right branch in this loop. If we have | |
472 | * fewer right, we skip the left ones. | |
473 | */ | |
474 | if (left_first != !!(flags & SYMMETRIC_LEFT)) | |
475 | continue; | |
476 | commit->util = add_commit_patch_id(commit, &ids); | |
477 | } | |
478 | ||
479 | /* Check the other side */ | |
480 | for (p = list; p; p = p->next) { | |
481 | struct commit *commit = p->item; | |
482 | struct patch_id *id; | |
483 | unsigned flags = commit->object.flags; | |
484 | ||
485 | if (flags & BOUNDARY) | |
486 | continue; | |
487 | /* | |
488 | * If we have fewer left, left_first is set and we omit | |
489 | * commits on the left branch in this loop. | |
490 | */ | |
491 | if (left_first == !!(flags & SYMMETRIC_LEFT)) | |
492 | continue; | |
493 | ||
494 | /* | |
495 | * Have we seen the same patch id? | |
496 | */ | |
497 | id = has_commit_patch_id(commit, &ids); | |
498 | if (!id) | |
499 | continue; | |
500 | id->seen = 1; | |
501 | commit->object.flags |= SHOWN; | |
502 | } | |
503 | ||
504 | /* Now check the original side for seen ones */ | |
505 | for (p = list; p; p = p->next) { | |
506 | struct commit *commit = p->item; | |
507 | struct patch_id *ent; | |
508 | ||
509 | ent = commit->util; | |
510 | if (!ent) | |
511 | continue; | |
512 | if (ent->seen) | |
513 | commit->object.flags |= SHOWN; | |
514 | commit->util = NULL; | |
515 | } | |
516 | ||
517 | free_patch_ids(&ids); | |
518 | } | |
519 | ||
cc0e6c5a | 520 | static int limit_list(struct rev_info *revs) |
a4a88b2b LT |
521 | { |
522 | struct commit_list *list = revs->commits; | |
523 | struct commit_list *newlist = NULL; | |
524 | struct commit_list **p = &newlist; | |
525 | ||
526 | while (list) { | |
527 | struct commit_list *entry = list; | |
528 | struct commit *commit = list->item; | |
529 | struct object *obj = &commit->object; | |
530 | ||
531 | list = list->next; | |
532 | free(entry); | |
533 | ||
534 | if (revs->max_age != -1 && (commit->date < revs->max_age)) | |
535 | obj->flags |= UNINTERESTING; | |
cc0e6c5a AR |
536 | if (add_parents_to_list(revs, commit, &list) < 0) |
537 | return -1; | |
a4a88b2b LT |
538 | if (obj->flags & UNINTERESTING) { |
539 | mark_parents_uninteresting(commit); | |
540 | if (everybody_uninteresting(list)) | |
541 | break; | |
542 | continue; | |
543 | } | |
544 | if (revs->min_age != -1 && (commit->date > revs->min_age)) | |
545 | continue; | |
546 | p = &commit_list_insert(commit, p)->next; | |
547 | } | |
d7a17cad JH |
548 | if (revs->cherry_pick) |
549 | cherry_pick_list(newlist); | |
550 | ||
a4a88b2b | 551 | revs->commits = newlist; |
cc0e6c5a | 552 | return 0; |
a4a88b2b LT |
553 | } |
554 | ||
63049292 JH |
555 | struct all_refs_cb { |
556 | int all_flags; | |
71b03b42 | 557 | int warned_bad_reflog; |
63049292 JH |
558 | struct rev_info *all_revs; |
559 | const char *name_for_errormsg; | |
560 | }; | |
ae563542 | 561 | |
8da19775 | 562 | static int handle_one_ref(const char *path, const unsigned char *sha1, int flag, void *cb_data) |
ae563542 | 563 | { |
63049292 JH |
564 | struct all_refs_cb *cb = cb_data; |
565 | struct object *object = get_reference(cb->all_revs, path, sha1, | |
566 | cb->all_flags); | |
3d1efd8f | 567 | add_pending_object(cb->all_revs, object, path); |
ae563542 LT |
568 | return 0; |
569 | } | |
570 | ||
571 | static void handle_all(struct rev_info *revs, unsigned flags) | |
572 | { | |
63049292 JH |
573 | struct all_refs_cb cb; |
574 | cb.all_revs = revs; | |
575 | cb.all_flags = flags; | |
576 | for_each_ref(handle_one_ref, &cb); | |
577 | } | |
578 | ||
71b03b42 | 579 | static void handle_one_reflog_commit(unsigned char *sha1, void *cb_data) |
63049292 JH |
580 | { |
581 | struct all_refs_cb *cb = cb_data; | |
71b03b42 SP |
582 | if (!is_null_sha1(sha1)) { |
583 | struct object *o = parse_object(sha1); | |
584 | if (o) { | |
585 | o->flags |= cb->all_flags; | |
586 | add_pending_object(cb->all_revs, o, ""); | |
587 | } | |
588 | else if (!cb->warned_bad_reflog) { | |
46efd2d9 | 589 | warning("reflog of '%s' references pruned commits", |
71b03b42 SP |
590 | cb->name_for_errormsg); |
591 | cb->warned_bad_reflog = 1; | |
592 | } | |
63049292 | 593 | } |
71b03b42 SP |
594 | } |
595 | ||
883d60fa JS |
596 | static int handle_one_reflog_ent(unsigned char *osha1, unsigned char *nsha1, |
597 | const char *email, unsigned long timestamp, int tz, | |
598 | const char *message, void *cb_data) | |
71b03b42 SP |
599 | { |
600 | handle_one_reflog_commit(osha1, cb_data); | |
601 | handle_one_reflog_commit(nsha1, cb_data); | |
63049292 JH |
602 | return 0; |
603 | } | |
604 | ||
605 | static int handle_one_reflog(const char *path, const unsigned char *sha1, int flag, void *cb_data) | |
606 | { | |
607 | struct all_refs_cb *cb = cb_data; | |
71b03b42 | 608 | cb->warned_bad_reflog = 0; |
63049292 JH |
609 | cb->name_for_errormsg = path; |
610 | for_each_reflog_ent(path, handle_one_reflog_ent, cb_data); | |
611 | return 0; | |
612 | } | |
613 | ||
614 | static void handle_reflog(struct rev_info *revs, unsigned flags) | |
615 | { | |
616 | struct all_refs_cb cb; | |
617 | cb.all_revs = revs; | |
618 | cb.all_flags = flags; | |
25b51e2c | 619 | for_each_reflog(handle_one_reflog, &cb); |
ae563542 LT |
620 | } |
621 | ||
ea4a19e1 JH |
622 | static int add_parents_only(struct rev_info *revs, const char *arg, int flags) |
623 | { | |
624 | unsigned char sha1[20]; | |
625 | struct object *it; | |
626 | struct commit *commit; | |
627 | struct commit_list *parents; | |
628 | ||
629 | if (*arg == '^') { | |
630 | flags ^= UNINTERESTING; | |
631 | arg++; | |
632 | } | |
633 | if (get_sha1(arg, sha1)) | |
634 | return 0; | |
635 | while (1) { | |
636 | it = get_reference(revs, arg, sha1, 0); | |
1974632c | 637 | if (it->type != OBJ_TAG) |
ea4a19e1 | 638 | break; |
e702496e | 639 | hashcpy(sha1, ((struct tag*)it)->tagged->sha1); |
ea4a19e1 | 640 | } |
1974632c | 641 | if (it->type != OBJ_COMMIT) |
ea4a19e1 JH |
642 | return 0; |
643 | commit = (struct commit *)it; | |
644 | for (parents = commit->parents; parents; parents = parents->next) { | |
645 | it = &parents->item->object; | |
646 | it->flags |= flags; | |
647 | add_pending_object(revs, it, arg); | |
648 | } | |
649 | return 1; | |
650 | } | |
651 | ||
db6296a5 | 652 | void init_revisions(struct rev_info *revs, const char *prefix) |
8efdc326 FK |
653 | { |
654 | memset(revs, 0, sizeof(*revs)); | |
8e8f9987 | 655 | |
6b9c58f4 | 656 | revs->abbrev = DEFAULT_ABBREV; |
8e8f9987 | 657 | revs->ignore_merges = 1; |
9202434c | 658 | revs->simplify_history = 1; |
cd2bdc53 | 659 | revs->pruning.recursive = 1; |
dd47aa31 | 660 | revs->pruning.quiet = 1; |
cd2bdc53 LT |
661 | revs->pruning.add_remove = file_add_remove; |
662 | revs->pruning.change = file_change; | |
8efdc326 FK |
663 | revs->lifo = 1; |
664 | revs->dense = 1; | |
db6296a5 | 665 | revs->prefix = prefix; |
8efdc326 FK |
666 | revs->max_age = -1; |
667 | revs->min_age = -1; | |
d5db6c9e | 668 | revs->skip_count = -1; |
8efdc326 | 669 | revs->max_count = -1; |
2bfe3cec | 670 | revs->subject_prefix = "PATCH"; |
8efdc326 FK |
671 | |
672 | revs->prune_fn = NULL; | |
673 | revs->prune_data = NULL; | |
674 | ||
675 | revs->topo_setter = topo_sort_default_setter; | |
676 | revs->topo_getter = topo_sort_default_getter; | |
cd2bdc53 | 677 | |
cd2bdc53 LT |
678 | revs->commit_format = CMIT_FMT_DEFAULT; |
679 | ||
680 | diff_setup(&revs->diffopt); | |
8efdc326 FK |
681 | } |
682 | ||
0d2c9d67 RS |
683 | static void add_pending_commit_list(struct rev_info *revs, |
684 | struct commit_list *commit_list, | |
685 | unsigned int flags) | |
686 | { | |
687 | while (commit_list) { | |
688 | struct object *object = &commit_list->item->object; | |
689 | object->flags |= flags; | |
690 | add_pending_object(revs, object, sha1_to_hex(object->sha1)); | |
691 | commit_list = commit_list->next; | |
692 | } | |
693 | } | |
694 | ||
ae3e5e1e JH |
695 | static void prepare_show_merge(struct rev_info *revs) |
696 | { | |
697 | struct commit_list *bases; | |
698 | struct commit *head, *other; | |
699 | unsigned char sha1[20]; | |
700 | const char **prune = NULL; | |
701 | int i, prune_num = 1; /* counting terminating NULL */ | |
702 | ||
703 | if (get_sha1("HEAD", sha1) || !(head = lookup_commit(sha1))) | |
704 | die("--merge without HEAD?"); | |
705 | if (get_sha1("MERGE_HEAD", sha1) || !(other = lookup_commit(sha1))) | |
706 | die("--merge without MERGE_HEAD?"); | |
707 | add_pending_object(revs, &head->object, "HEAD"); | |
708 | add_pending_object(revs, &other->object, "MERGE_HEAD"); | |
709 | bases = get_merge_bases(head, other, 1); | |
710 | while (bases) { | |
711 | struct commit *it = bases->item; | |
712 | struct commit_list *n = bases->next; | |
713 | free(bases); | |
714 | bases = n; | |
715 | it->object.flags |= UNINTERESTING; | |
716 | add_pending_object(revs, &it->object, "(merge-base)"); | |
717 | } | |
718 | ||
719 | if (!active_nr) | |
720 | read_cache(); | |
721 | for (i = 0; i < active_nr; i++) { | |
722 | struct cache_entry *ce = active_cache[i]; | |
723 | if (!ce_stage(ce)) | |
724 | continue; | |
725 | if (ce_path_match(ce, revs->prune_data)) { | |
726 | prune_num++; | |
727 | prune = xrealloc(prune, sizeof(*prune) * prune_num); | |
728 | prune[prune_num-2] = ce->name; | |
729 | prune[prune_num-1] = NULL; | |
730 | } | |
731 | while ((i+1 < active_nr) && | |
732 | ce_same_name(ce, active_cache[i+1])) | |
733 | i++; | |
734 | } | |
735 | revs->prune_data = prune; | |
736 | } | |
737 | ||
5d6f0935 JH |
738 | int handle_revision_arg(const char *arg, struct rev_info *revs, |
739 | int flags, | |
740 | int cant_be_filename) | |
741 | { | |
bb6c2fba | 742 | unsigned mode; |
5d6f0935 JH |
743 | char *dotdot; |
744 | struct object *object; | |
745 | unsigned char sha1[20]; | |
746 | int local_flags; | |
747 | ||
748 | dotdot = strstr(arg, ".."); | |
749 | if (dotdot) { | |
750 | unsigned char from_sha1[20]; | |
751 | const char *next = dotdot + 2; | |
752 | const char *this = arg; | |
753 | int symmetric = *next == '.'; | |
754 | unsigned int flags_exclude = flags ^ UNINTERESTING; | |
755 | ||
756 | *dotdot = 0; | |
757 | next += symmetric; | |
758 | ||
759 | if (!*next) | |
760 | next = "HEAD"; | |
761 | if (dotdot == arg) | |
762 | this = "HEAD"; | |
763 | if (!get_sha1(this, from_sha1) && | |
764 | !get_sha1(next, sha1)) { | |
765 | struct commit *a, *b; | |
766 | struct commit_list *exclude; | |
767 | ||
768 | a = lookup_commit_reference(from_sha1); | |
769 | b = lookup_commit_reference(sha1); | |
770 | if (!a || !b) { | |
771 | die(symmetric ? | |
772 | "Invalid symmetric difference expression %s...%s" : | |
773 | "Invalid revision range %s..%s", | |
774 | arg, next); | |
775 | } | |
776 | ||
777 | if (!cant_be_filename) { | |
778 | *dotdot = '.'; | |
779 | verify_non_filename(revs->prefix, arg); | |
780 | } | |
781 | ||
782 | if (symmetric) { | |
783 | exclude = get_merge_bases(a, b, 1); | |
784 | add_pending_commit_list(revs, exclude, | |
785 | flags_exclude); | |
786 | free_commit_list(exclude); | |
577ed5c2 | 787 | a->object.flags |= flags | SYMMETRIC_LEFT; |
5d6f0935 JH |
788 | } else |
789 | a->object.flags |= flags_exclude; | |
790 | b->object.flags |= flags; | |
791 | add_pending_object(revs, &a->object, this); | |
792 | add_pending_object(revs, &b->object, next); | |
793 | return 0; | |
794 | } | |
795 | *dotdot = '.'; | |
796 | } | |
797 | dotdot = strstr(arg, "^@"); | |
798 | if (dotdot && !dotdot[2]) { | |
799 | *dotdot = 0; | |
800 | if (add_parents_only(revs, arg, flags)) | |
801 | return 0; | |
802 | *dotdot = '^'; | |
803 | } | |
62476c8e JH |
804 | dotdot = strstr(arg, "^!"); |
805 | if (dotdot && !dotdot[2]) { | |
806 | *dotdot = 0; | |
807 | if (!add_parents_only(revs, arg, flags ^ UNINTERESTING)) | |
808 | *dotdot = '^'; | |
809 | } | |
810 | ||
5d6f0935 JH |
811 | local_flags = 0; |
812 | if (*arg == '^') { | |
813 | local_flags = UNINTERESTING; | |
814 | arg++; | |
815 | } | |
bb6c2fba | 816 | if (get_sha1_with_mode(arg, sha1, &mode)) |
5d6f0935 JH |
817 | return -1; |
818 | if (!cant_be_filename) | |
819 | verify_non_filename(revs->prefix, arg); | |
820 | object = get_reference(revs, arg, sha1, flags ^ local_flags); | |
bb6c2fba | 821 | add_pending_object_with_mode(revs, object, arg, mode); |
5d6f0935 JH |
822 | return 0; |
823 | } | |
824 | ||
2d10c555 | 825 | static void add_grep(struct rev_info *revs, const char *ptn, enum grep_pat_token what) |
bd95fcd3 | 826 | { |
2d10c555 | 827 | if (!revs->grep_filter) { |
bd95fcd3 JH |
828 | struct grep_opt *opt = xcalloc(1, sizeof(*opt)); |
829 | opt->status_only = 1; | |
830 | opt->pattern_tail = &(opt->pattern_list); | |
831 | opt->regflags = REG_NEWLINE; | |
2d10c555 | 832 | revs->grep_filter = opt; |
bd95fcd3 | 833 | } |
2d10c555 JH |
834 | append_grep_pattern(revs->grep_filter, ptn, |
835 | "command line", 0, what); | |
836 | } | |
837 | ||
838 | static void add_header_grep(struct rev_info *revs, const char *field, const char *pattern) | |
839 | { | |
840 | char *pat; | |
841 | const char *prefix; | |
842 | int patlen, fldlen; | |
bd95fcd3 JH |
843 | |
844 | fldlen = strlen(field); | |
845 | patlen = strlen(pattern); | |
a2ed6ae4 LT |
846 | pat = xmalloc(patlen + fldlen + 10); |
847 | prefix = ".*"; | |
848 | if (*pattern == '^') { | |
849 | prefix = ""; | |
850 | pattern++; | |
851 | } | |
852 | sprintf(pat, "^%s %s%s", field, prefix, pattern); | |
2d10c555 | 853 | add_grep(revs, pat, GREP_PATTERN_HEAD); |
bd95fcd3 JH |
854 | } |
855 | ||
856 | static void add_message_grep(struct rev_info *revs, const char *pattern) | |
857 | { | |
2d10c555 | 858 | add_grep(revs, pattern, GREP_PATTERN_BODY); |
bd95fcd3 JH |
859 | } |
860 | ||
106d710b JH |
861 | static void add_ignore_packed(struct rev_info *revs, const char *name) |
862 | { | |
863 | int num = ++revs->num_ignore_packed; | |
864 | ||
865 | revs->ignore_packed = xrealloc(revs->ignore_packed, | |
866 | sizeof(const char **) * (num + 1)); | |
867 | revs->ignore_packed[num-1] = name; | |
868 | revs->ignore_packed[num] = NULL; | |
869 | } | |
870 | ||
ae563542 LT |
871 | /* |
872 | * Parse revision information, filling in the "rev_info" structure, | |
873 | * and removing the used arguments from the argument list. | |
874 | * | |
765ac8ec LT |
875 | * Returns the number of arguments left that weren't recognized |
876 | * (which are also moved to the head of the argument list) | |
ae563542 | 877 | */ |
a4a88b2b | 878 | int setup_revisions(int argc, const char **argv, struct rev_info *revs, const char *def) |
ae563542 | 879 | { |
ae3e5e1e | 880 | int i, flags, seen_dashdash, show_merge; |
765ac8ec | 881 | const char **unrecognized = argv + 1; |
ae563542 | 882 | int left = 1; |
70d0afba | 883 | int all_match = 0; |
93d496a5 | 884 | int regflags = 0; |
ae563542 | 885 | |
ae563542 LT |
886 | /* First, search for "--" */ |
887 | seen_dashdash = 0; | |
888 | for (i = 1; i < argc; i++) { | |
889 | const char *arg = argv[i]; | |
890 | if (strcmp(arg, "--")) | |
891 | continue; | |
892 | argv[i] = NULL; | |
893 | argc = i; | |
8efdc326 | 894 | revs->prune_data = get_pathspec(revs->prefix, argv + i + 1); |
ae563542 LT |
895 | seen_dashdash = 1; |
896 | break; | |
897 | } | |
898 | ||
ae3e5e1e | 899 | flags = show_merge = 0; |
ae563542 | 900 | for (i = 1; i < argc; i++) { |
ae563542 | 901 | const char *arg = argv[i]; |
ae563542 | 902 | if (*arg == '-') { |
cd2bdc53 | 903 | int opts; |
cc44c765 | 904 | if (!prefixcmp(arg, "--max-count=")) { |
ae563542 LT |
905 | revs->max_count = atoi(arg + 12); |
906 | continue; | |
907 | } | |
cc44c765 | 908 | if (!prefixcmp(arg, "--skip=")) { |
d5db6c9e JH |
909 | revs->skip_count = atoi(arg + 7); |
910 | continue; | |
911 | } | |
de5f2bf3 | 912 | /* accept -<digit>, like traditional "head" */ |
64bc6e3d JH |
913 | if ((*arg == '-') && isdigit(arg[1])) { |
914 | revs->max_count = atoi(arg + 1); | |
915 | continue; | |
916 | } | |
917 | if (!strcmp(arg, "-n")) { | |
918 | if (argc <= i + 1) | |
919 | die("-n requires an argument"); | |
920 | revs->max_count = atoi(argv[++i]); | |
921 | continue; | |
922 | } | |
1968d77d | 923 | if (!prefixcmp(arg, "-n")) { |
64bc6e3d JH |
924 | revs->max_count = atoi(arg + 2); |
925 | continue; | |
926 | } | |
cc44c765 | 927 | if (!prefixcmp(arg, "--max-age=")) { |
ae563542 | 928 | revs->max_age = atoi(arg + 10); |
ae563542 LT |
929 | continue; |
930 | } | |
cc44c765 | 931 | if (!prefixcmp(arg, "--since=")) { |
fd751667 | 932 | revs->max_age = approxidate(arg + 8); |
fd751667 JH |
933 | continue; |
934 | } | |
cc44c765 | 935 | if (!prefixcmp(arg, "--after=")) { |
fd751667 | 936 | revs->max_age = approxidate(arg + 8); |
53069686 JH |
937 | continue; |
938 | } | |
cc44c765 | 939 | if (!prefixcmp(arg, "--min-age=")) { |
53069686 | 940 | revs->min_age = atoi(arg + 10); |
fd751667 JH |
941 | continue; |
942 | } | |
cc44c765 | 943 | if (!prefixcmp(arg, "--before=")) { |
fd751667 | 944 | revs->min_age = approxidate(arg + 9); |
fd751667 JH |
945 | continue; |
946 | } | |
cc44c765 | 947 | if (!prefixcmp(arg, "--until=")) { |
fd751667 | 948 | revs->min_age = approxidate(arg + 8); |
fd751667 JH |
949 | continue; |
950 | } | |
ae563542 LT |
951 | if (!strcmp(arg, "--all")) { |
952 | handle_all(revs, flags); | |
953 | continue; | |
954 | } | |
0053e902 JH |
955 | if (!strcmp(arg, "--first-parent")) { |
956 | revs->first_parent_only = 1; | |
957 | continue; | |
958 | } | |
63049292 JH |
959 | if (!strcmp(arg, "--reflog")) { |
960 | handle_reflog(revs, flags); | |
961 | continue; | |
962 | } | |
084ae0a7 JS |
963 | if (!strcmp(arg, "-g") || |
964 | !strcmp(arg, "--walk-reflogs")) { | |
8860fd42 JS |
965 | init_reflog_walk(&revs->reflog_info); |
966 | continue; | |
967 | } | |
ae563542 LT |
968 | if (!strcmp(arg, "--not")) { |
969 | flags ^= UNINTERESTING; | |
970 | continue; | |
971 | } | |
972 | if (!strcmp(arg, "--default")) { | |
973 | if (++i >= argc) | |
974 | die("bad --default argument"); | |
975 | def = argv[i]; | |
976 | continue; | |
977 | } | |
ae3e5e1e JH |
978 | if (!strcmp(arg, "--merge")) { |
979 | show_merge = 1; | |
980 | continue; | |
981 | } | |
ae563542 LT |
982 | if (!strcmp(arg, "--topo-order")) { |
983 | revs->topo_order = 1; | |
984 | continue; | |
985 | } | |
986 | if (!strcmp(arg, "--date-order")) { | |
987 | revs->lifo = 0; | |
988 | revs->topo_order = 1; | |
989 | continue; | |
990 | } | |
7b0c9966 LT |
991 | if (!strcmp(arg, "--parents")) { |
992 | revs->parents = 1; | |
993 | continue; | |
994 | } | |
ae563542 LT |
995 | if (!strcmp(arg, "--dense")) { |
996 | revs->dense = 1; | |
997 | continue; | |
998 | } | |
999 | if (!strcmp(arg, "--sparse")) { | |
1000 | revs->dense = 0; | |
1001 | continue; | |
1002 | } | |
1003 | if (!strcmp(arg, "--remove-empty")) { | |
1004 | revs->remove_empty_trees = 1; | |
1005 | continue; | |
1006 | } | |
5cdeae71 | 1007 | if (!strcmp(arg, "--no-merges")) { |
765ac8ec LT |
1008 | revs->no_merges = 1; |
1009 | continue; | |
1010 | } | |
384e99a4 JH |
1011 | if (!strcmp(arg, "--boundary")) { |
1012 | revs->boundary = 1; | |
1013 | continue; | |
1014 | } | |
8dce8235 JH |
1015 | if (!strcmp(arg, "--left-right")) { |
1016 | revs->left_right = 1; | |
74bd9029 JH |
1017 | continue; |
1018 | } | |
d7a17cad JH |
1019 | if (!strcmp(arg, "--cherry-pick")) { |
1020 | revs->cherry_pick = 1; | |
1021 | continue; | |
1022 | } | |
ae563542 LT |
1023 | if (!strcmp(arg, "--objects")) { |
1024 | revs->tag_objects = 1; | |
1025 | revs->tree_objects = 1; | |
1026 | revs->blob_objects = 1; | |
1027 | continue; | |
1028 | } | |
1029 | if (!strcmp(arg, "--objects-edge")) { | |
1030 | revs->tag_objects = 1; | |
1031 | revs->tree_objects = 1; | |
1032 | revs->blob_objects = 1; | |
1033 | revs->edge_hint = 1; | |
1034 | continue; | |
1035 | } | |
d9a83684 LT |
1036 | if (!strcmp(arg, "--unpacked")) { |
1037 | revs->unpacked = 1; | |
106d710b JH |
1038 | free(revs->ignore_packed); |
1039 | revs->ignore_packed = NULL; | |
1040 | revs->num_ignore_packed = 0; | |
1041 | continue; | |
1042 | } | |
cc44c765 | 1043 | if (!prefixcmp(arg, "--unpacked=")) { |
106d710b JH |
1044 | revs->unpacked = 1; |
1045 | add_ignore_packed(revs, arg+11); | |
d9a83684 LT |
1046 | continue; |
1047 | } | |
cd2bdc53 LT |
1048 | if (!strcmp(arg, "-r")) { |
1049 | revs->diff = 1; | |
1050 | revs->diffopt.recursive = 1; | |
1051 | continue; | |
1052 | } | |
1053 | if (!strcmp(arg, "-t")) { | |
1054 | revs->diff = 1; | |
1055 | revs->diffopt.recursive = 1; | |
1056 | revs->diffopt.tree_in_recursive = 1; | |
1057 | continue; | |
1058 | } | |
1059 | if (!strcmp(arg, "-m")) { | |
1060 | revs->ignore_merges = 0; | |
1061 | continue; | |
1062 | } | |
1063 | if (!strcmp(arg, "-c")) { | |
1064 | revs->diff = 1; | |
0fe7c1de | 1065 | revs->dense_combined_merges = 0; |
cd2bdc53 LT |
1066 | revs->combine_merges = 1; |
1067 | continue; | |
1068 | } | |
1069 | if (!strcmp(arg, "--cc")) { | |
1070 | revs->diff = 1; | |
1071 | revs->dense_combined_merges = 1; | |
1072 | revs->combine_merges = 1; | |
1073 | continue; | |
1074 | } | |
1075 | if (!strcmp(arg, "-v")) { | |
1076 | revs->verbose_header = 1; | |
cd2bdc53 LT |
1077 | continue; |
1078 | } | |
cc44c765 | 1079 | if (!prefixcmp(arg, "--pretty")) { |
cd2bdc53 | 1080 | revs->verbose_header = 1; |
cd2bdc53 LT |
1081 | revs->commit_format = get_commit_format(arg+8); |
1082 | continue; | |
1083 | } | |
1084 | if (!strcmp(arg, "--root")) { | |
1085 | revs->show_root_diff = 1; | |
1086 | continue; | |
1087 | } | |
1088 | if (!strcmp(arg, "--no-commit-id")) { | |
1089 | revs->no_commit_id = 1; | |
1090 | continue; | |
1091 | } | |
1092 | if (!strcmp(arg, "--always")) { | |
1093 | revs->always_show_header = 1; | |
1094 | continue; | |
1095 | } | |
1096 | if (!strcmp(arg, "--no-abbrev")) { | |
1097 | revs->abbrev = 0; | |
1098 | continue; | |
1099 | } | |
1100 | if (!strcmp(arg, "--abbrev")) { | |
1101 | revs->abbrev = DEFAULT_ABBREV; | |
1102 | continue; | |
1103 | } | |
cc44c765 | 1104 | if (!prefixcmp(arg, "--abbrev=")) { |
508d9e37 LT |
1105 | revs->abbrev = strtoul(arg + 9, NULL, 10); |
1106 | if (revs->abbrev < MINIMUM_ABBREV) | |
1107 | revs->abbrev = MINIMUM_ABBREV; | |
1108 | else if (revs->abbrev > 40) | |
1109 | revs->abbrev = 40; | |
1110 | continue; | |
1111 | } | |
cd2bdc53 LT |
1112 | if (!strcmp(arg, "--abbrev-commit")) { |
1113 | revs->abbrev_commit = 1; | |
1114 | continue; | |
1115 | } | |
1116 | if (!strcmp(arg, "--full-diff")) { | |
1117 | revs->diff = 1; | |
1118 | revs->full_diff = 1; | |
1119 | continue; | |
1120 | } | |
9202434c LT |
1121 | if (!strcmp(arg, "--full-history")) { |
1122 | revs->simplify_history = 0; | |
1123 | continue; | |
1124 | } | |
3dfb9278 | 1125 | if (!strcmp(arg, "--relative-date")) { |
a7b02ccf JH |
1126 | revs->date_mode = DATE_RELATIVE; |
1127 | continue; | |
1128 | } | |
1129 | if (!strncmp(arg, "--date=", 7)) { | |
1130 | if (!strcmp(arg + 7, "relative")) | |
1131 | revs->date_mode = DATE_RELATIVE; | |
1132 | else if (!strcmp(arg + 7, "local")) | |
1133 | revs->date_mode = DATE_LOCAL; | |
1134 | else if (!strcmp(arg + 7, "default")) | |
1135 | revs->date_mode = DATE_NORMAL; | |
1136 | else | |
1137 | die("unknown date format %s", arg); | |
3dfb9278 JF |
1138 | continue; |
1139 | } | |
2d10c555 JH |
1140 | |
1141 | /* | |
1142 | * Grepping the commit log | |
1143 | */ | |
cc44c765 | 1144 | if (!prefixcmp(arg, "--author=")) { |
bd95fcd3 JH |
1145 | add_header_grep(revs, "author", arg+9); |
1146 | continue; | |
1147 | } | |
cc44c765 | 1148 | if (!prefixcmp(arg, "--committer=")) { |
bd95fcd3 JH |
1149 | add_header_grep(revs, "committer", arg+12); |
1150 | continue; | |
1151 | } | |
cc44c765 | 1152 | if (!prefixcmp(arg, "--grep=")) { |
bd95fcd3 JH |
1153 | add_message_grep(revs, arg+7); |
1154 | continue; | |
1155 | } | |
93d496a5 PB |
1156 | if (!prefixcmp(arg, "--extended-regexp")) { |
1157 | regflags |= REG_EXTENDED; | |
1158 | continue; | |
1159 | } | |
1160 | if (!prefixcmp(arg, "--regexp-ignore-case")) { | |
1161 | regflags |= REG_ICASE; | |
1162 | continue; | |
1163 | } | |
70d0afba JH |
1164 | if (!strcmp(arg, "--all-match")) { |
1165 | all_match = 1; | |
1166 | continue; | |
1167 | } | |
cc44c765 | 1168 | if (!prefixcmp(arg, "--encoding=")) { |
7cbcf4d5 JH |
1169 | arg += 11; |
1170 | if (strcmp(arg, "none")) | |
567fb65e | 1171 | git_log_output_encoding = xstrdup(arg); |
7cbcf4d5 JH |
1172 | else |
1173 | git_log_output_encoding = ""; | |
1174 | continue; | |
1175 | } | |
9c5e66e9 JS |
1176 | if (!strcmp(arg, "--reverse")) { |
1177 | revs->reverse ^= 1; | |
1178 | continue; | |
1179 | } | |
2d10c555 | 1180 | |
cd2bdc53 LT |
1181 | opts = diff_opt_parse(&revs->diffopt, argv+i, argc-i); |
1182 | if (opts > 0) { | |
1183 | revs->diff = 1; | |
1184 | i += opts - 1; | |
1185 | continue; | |
1186 | } | |
ae563542 LT |
1187 | *unrecognized++ = arg; |
1188 | left++; | |
1189 | continue; | |
1190 | } | |
ae563542 | 1191 | |
5d6f0935 JH |
1192 | if (handle_revision_arg(arg, revs, flags, seen_dashdash)) { |
1193 | int j; | |
1194 | if (seen_dashdash || *arg == '^') | |
ae563542 LT |
1195 | die("bad revision '%s'", arg); |
1196 | ||
ea92f41f JH |
1197 | /* If we didn't have a "--": |
1198 | * (1) all filenames must exist; | |
1199 | * (2) all rev-args must not be interpretable | |
1200 | * as a valid filename. | |
1201 | * but the latter we have checked in the main loop. | |
1202 | */ | |
e23d0b4a LT |
1203 | for (j = i; j < argc; j++) |
1204 | verify_filename(revs->prefix, argv[j]); | |
1205 | ||
5d6f0935 JH |
1206 | revs->prune_data = get_pathspec(revs->prefix, |
1207 | argv + i); | |
ae563542 LT |
1208 | break; |
1209 | } | |
ae563542 | 1210 | } |
5d6f0935 | 1211 | |
93d496a5 PB |
1212 | if (revs->grep_filter) |
1213 | revs->grep_filter->regflags |= regflags; | |
1214 | ||
ae3e5e1e JH |
1215 | if (show_merge) |
1216 | prepare_show_merge(revs); | |
1f1e895f | 1217 | if (def && !revs->pending.nr) { |
ae563542 | 1218 | unsigned char sha1[20]; |
cd2bdc53 | 1219 | struct object *object; |
bb6c2fba MK |
1220 | unsigned mode; |
1221 | if (get_sha1_with_mode(def, sha1, &mode)) | |
ae563542 | 1222 | die("bad default revision '%s'", def); |
cd2bdc53 | 1223 | object = get_reference(revs, def, sha1, 0); |
bb6c2fba | 1224 | add_pending_object_with_mode(revs, object, def, mode); |
ae563542 | 1225 | } |
8efdc326 | 1226 | |
9dad9d2e | 1227 | if (revs->topo_order) |
53069686 JH |
1228 | revs->limited = 1; |
1229 | ||
8efdc326 | 1230 | if (revs->prune_data) { |
cd2bdc53 | 1231 | diff_tree_setup_paths(revs->prune_data, &revs->pruning); |
8efdc326 | 1232 | revs->prune_fn = try_to_simplify_commit; |
cd2bdc53 LT |
1233 | if (!revs->full_diff) |
1234 | diff_tree_setup_paths(revs->prune_data, &revs->diffopt); | |
8efdc326 | 1235 | } |
cd2bdc53 LT |
1236 | if (revs->combine_merges) { |
1237 | revs->ignore_merges = 0; | |
0e677e1a | 1238 | if (revs->dense_combined_merges && !revs->diffopt.output_format) |
cd2bdc53 LT |
1239 | revs->diffopt.output_format = DIFF_FORMAT_PATCH; |
1240 | } | |
cd2bdc53 | 1241 | revs->diffopt.abbrev = revs->abbrev; |
72ee96c0 JH |
1242 | if (diff_setup_done(&revs->diffopt) < 0) |
1243 | die("diff_setup_done failed"); | |
8efdc326 | 1244 | |
70d0afba JH |
1245 | if (revs->grep_filter) { |
1246 | revs->grep_filter->all_match = all_match; | |
2d10c555 | 1247 | compile_grep_patterns(revs->grep_filter); |
70d0afba | 1248 | } |
bd95fcd3 | 1249 | |
ae563542 LT |
1250 | return left; |
1251 | } | |
a4a88b2b | 1252 | |
cc0e6c5a | 1253 | int prepare_revision_walk(struct rev_info *revs) |
a4a88b2b | 1254 | { |
1f1e895f | 1255 | int nr = revs->pending.nr; |
94d23673 | 1256 | struct object_array_entry *e, *list; |
cd2bdc53 | 1257 | |
94d23673 | 1258 | e = list = revs->pending.objects; |
1f1e895f LT |
1259 | revs->pending.nr = 0; |
1260 | revs->pending.alloc = 0; | |
1261 | revs->pending.objects = NULL; | |
1262 | while (--nr >= 0) { | |
94d23673 | 1263 | struct commit *commit = handle_commit(revs, e->item, e->name); |
cd2bdc53 LT |
1264 | if (commit) { |
1265 | if (!(commit->object.flags & SEEN)) { | |
1266 | commit->object.flags |= SEEN; | |
1267 | insert_by_date(commit, &revs->commits); | |
1268 | } | |
1269 | } | |
94d23673 | 1270 | e++; |
cd2bdc53 | 1271 | } |
94d23673 | 1272 | free(list); |
cd2bdc53 | 1273 | |
ba1d4505 | 1274 | if (revs->no_walk) |
cc0e6c5a | 1275 | return 0; |
a4a88b2b | 1276 | if (revs->limited) |
cc0e6c5a AR |
1277 | if (limit_list(revs) < 0) |
1278 | return -1; | |
a4a88b2b | 1279 | if (revs->topo_order) |
8efdc326 FK |
1280 | sort_in_topological_order_fn(&revs->commits, revs->lifo, |
1281 | revs->topo_setter, | |
1282 | revs->topo_getter); | |
cc0e6c5a | 1283 | return 0; |
a4a88b2b LT |
1284 | } |
1285 | ||
cc0e6c5a AR |
1286 | enum rewrite_result { |
1287 | rewrite_one_ok, | |
1288 | rewrite_one_noparents, | |
1289 | rewrite_one_error, | |
1290 | }; | |
1291 | ||
1292 | static enum rewrite_result rewrite_one(struct rev_info *revs, struct commit **pp) | |
765ac8ec LT |
1293 | { |
1294 | for (;;) { | |
1295 | struct commit *p = *pp; | |
3381c790 | 1296 | if (!revs->limited) |
cc0e6c5a AR |
1297 | if (add_parents_to_list(revs, p, &revs->commits) < 0) |
1298 | return rewrite_one_error; | |
6631c736 | 1299 | if (p->parents && p->parents->next) |
cc0e6c5a | 1300 | return rewrite_one_ok; |
765ac8ec | 1301 | if (p->object.flags & (TREECHANGE | UNINTERESTING)) |
cc0e6c5a | 1302 | return rewrite_one_ok; |
765ac8ec | 1303 | if (!p->parents) |
cc0e6c5a | 1304 | return rewrite_one_noparents; |
765ac8ec LT |
1305 | *pp = p->parents->item; |
1306 | } | |
1307 | } | |
1308 | ||
cc0e6c5a | 1309 | static int rewrite_parents(struct rev_info *revs, struct commit *commit) |
765ac8ec LT |
1310 | { |
1311 | struct commit_list **pp = &commit->parents; | |
1312 | while (*pp) { | |
1313 | struct commit_list *parent = *pp; | |
cc0e6c5a AR |
1314 | switch (rewrite_one(revs, &parent->item)) { |
1315 | case rewrite_one_ok: | |
1316 | break; | |
1317 | case rewrite_one_noparents: | |
765ac8ec LT |
1318 | *pp = parent->next; |
1319 | continue; | |
cc0e6c5a AR |
1320 | case rewrite_one_error: |
1321 | return -1; | |
765ac8ec LT |
1322 | } |
1323 | pp = &parent->next; | |
1324 | } | |
cc0e6c5a | 1325 | return 0; |
765ac8ec LT |
1326 | } |
1327 | ||
8ecae9b0 JH |
1328 | static int commit_match(struct commit *commit, struct rev_info *opt) |
1329 | { | |
2d10c555 | 1330 | if (!opt->grep_filter) |
8ecae9b0 | 1331 | return 1; |
2d10c555 JH |
1332 | return grep_buffer(opt->grep_filter, |
1333 | NULL, /* we say nothing, not even filename */ | |
1334 | commit->buffer, strlen(commit->buffer)); | |
8ecae9b0 JH |
1335 | } |
1336 | ||
d5db6c9e | 1337 | static struct commit *get_revision_1(struct rev_info *revs) |
a4a88b2b | 1338 | { |
d5db6c9e | 1339 | if (!revs->commits) |
a4a88b2b | 1340 | return NULL; |
a4a88b2b | 1341 | |
765ac8ec | 1342 | do { |
cb115748 LT |
1343 | struct commit_list *entry = revs->commits; |
1344 | struct commit *commit = entry->item; | |
ea5ed3ab | 1345 | |
cb115748 LT |
1346 | revs->commits = entry->next; |
1347 | free(entry); | |
2a0925be | 1348 | |
8860fd42 JS |
1349 | if (revs->reflog_info) |
1350 | fake_reflog_parent(revs->reflog_info, commit); | |
1351 | ||
2a0925be LT |
1352 | /* |
1353 | * If we haven't done the list limiting, we need to look at | |
be7db6e5 LT |
1354 | * the parents here. We also need to do the date-based limiting |
1355 | * that we'd otherwise have done in limit_list(). | |
2a0925be | 1356 | */ |
be7db6e5 | 1357 | if (!revs->limited) { |
744f4985 | 1358 | if (revs->max_age != -1 && |
86ab4906 JH |
1359 | (commit->date < revs->max_age)) |
1360 | continue; | |
cc0e6c5a AR |
1361 | if (add_parents_to_list(revs, commit, &revs->commits) < 0) |
1362 | return NULL; | |
be7db6e5 | 1363 | } |
384e99a4 | 1364 | if (commit->object.flags & SHOWN) |
2a0925be | 1365 | continue; |
1b65a5aa | 1366 | |
744f4985 JH |
1367 | if (revs->unpacked && has_sha1_pack(commit->object.sha1, |
1368 | revs->ignore_packed)) | |
1369 | continue; | |
1370 | ||
1b65a5aa | 1371 | if (commit->object.flags & UNINTERESTING) |
2a0925be | 1372 | continue; |
765ac8ec | 1373 | if (revs->min_age != -1 && (commit->date > revs->min_age)) |
2a0925be | 1374 | continue; |
384e99a4 JH |
1375 | if (revs->no_merges && |
1376 | commit->parents && commit->parents->next) | |
2a0925be | 1377 | continue; |
8ecae9b0 JH |
1378 | if (!commit_match(commit, revs)) |
1379 | continue; | |
8efdc326 | 1380 | if (revs->prune_fn && revs->dense) { |
6631c736 LT |
1381 | /* Commit without changes? */ |
1382 | if (!(commit->object.flags & TREECHANGE)) { | |
1383 | /* drop merges unless we want parenthood */ | |
1384 | if (!revs->parents) | |
1385 | continue; | |
1386 | /* non-merge - always ignore it */ | |
02d3dca3 | 1387 | if (!commit->parents || !commit->parents->next) |
6631c736 LT |
1388 | continue; |
1389 | } | |
cc0e6c5a AR |
1390 | if (revs->parents && rewrite_parents(revs, commit) < 0) |
1391 | return NULL; | |
384e99a4 | 1392 | } |
765ac8ec LT |
1393 | return commit; |
1394 | } while (revs->commits); | |
1395 | return NULL; | |
1396 | } | |
d5db6c9e | 1397 | |
86ab4906 JH |
1398 | static void gc_boundary(struct object_array *array) |
1399 | { | |
1400 | unsigned nr = array->nr; | |
1401 | unsigned alloc = array->alloc; | |
1402 | struct object_array_entry *objects = array->objects; | |
1403 | ||
1404 | if (alloc <= nr) { | |
1405 | unsigned i, j; | |
1406 | for (i = j = 0; i < nr; i++) { | |
1407 | if (objects[i].item->flags & SHOWN) | |
1408 | continue; | |
1409 | if (i != j) | |
1410 | objects[j] = objects[i]; | |
1411 | j++; | |
1412 | } | |
892ae6bf | 1413 | for (i = j; i < nr; i++) |
86ab4906 JH |
1414 | objects[i].item = NULL; |
1415 | array->nr = j; | |
1416 | } | |
1417 | } | |
1418 | ||
d5db6c9e JH |
1419 | struct commit *get_revision(struct rev_info *revs) |
1420 | { | |
1421 | struct commit *c = NULL; | |
86ab4906 JH |
1422 | struct commit_list *l; |
1423 | ||
1424 | if (revs->boundary == 2) { | |
1425 | unsigned i; | |
1426 | struct object_array *array = &revs->boundary_commits; | |
1427 | struct object_array_entry *objects = array->objects; | |
1428 | for (i = 0; i < array->nr; i++) { | |
1429 | c = (struct commit *)(objects[i].item); | |
1430 | if (!c) | |
1431 | continue; | |
1432 | if (!(c->object.flags & CHILD_SHOWN)) | |
1433 | continue; | |
1434 | if (!(c->object.flags & SHOWN)) | |
1435 | break; | |
9c5e66e9 | 1436 | } |
86ab4906 | 1437 | if (array->nr <= i) |
9c5e66e9 | 1438 | return NULL; |
86ab4906 JH |
1439 | |
1440 | c->object.flags |= SHOWN | BOUNDARY; | |
9c5e66e9 JS |
1441 | return c; |
1442 | } | |
1443 | ||
86ab4906 | 1444 | if (revs->reverse) { |
c33d8593 JH |
1445 | int limit = -1; |
1446 | ||
1447 | if (0 <= revs->max_count) { | |
1448 | limit = revs->max_count; | |
1449 | if (0 < revs->skip_count) | |
1450 | limit += revs->skip_count; | |
1451 | } | |
86ab4906 | 1452 | l = NULL; |
c33d8593 | 1453 | while ((c = get_revision_1(revs))) { |
86ab4906 | 1454 | commit_list_insert(c, &l); |
c33d8593 JH |
1455 | if ((0 < limit) && !--limit) |
1456 | break; | |
1457 | } | |
86ab4906 JH |
1458 | revs->commits = l; |
1459 | revs->reverse = 0; | |
c33d8593 | 1460 | revs->max_count = -1; |
2b064697 | 1461 | c = NULL; |
d5db6c9e JH |
1462 | } |
1463 | ||
86ab4906 JH |
1464 | /* |
1465 | * Now pick up what they want to give us | |
1466 | */ | |
8839ac94 JH |
1467 | c = get_revision_1(revs); |
1468 | if (c) { | |
1469 | while (0 < revs->skip_count) { | |
1470 | revs->skip_count--; | |
1471 | c = get_revision_1(revs); | |
1472 | if (!c) | |
1473 | break; | |
1474 | } | |
86ab4906 JH |
1475 | } |
1476 | ||
1477 | /* | |
1478 | * Check the max_count. | |
1479 | */ | |
d5db6c9e JH |
1480 | switch (revs->max_count) { |
1481 | case -1: | |
1482 | break; | |
1483 | case 0: | |
86ab4906 JH |
1484 | c = NULL; |
1485 | break; | |
d5db6c9e JH |
1486 | default: |
1487 | revs->max_count--; | |
1488 | } | |
86ab4906 | 1489 | |
c33d8593 JH |
1490 | if (c) |
1491 | c->object.flags |= SHOWN; | |
1492 | ||
1493 | if (!revs->boundary) { | |
d5db6c9e | 1494 | return c; |
c33d8593 | 1495 | } |
86ab4906 JH |
1496 | |
1497 | if (!c) { | |
1498 | /* | |
1499 | * get_revision_1() runs out the commits, and | |
1500 | * we are done computing the boundaries. | |
1501 | * switch to boundary commits output mode. | |
1502 | */ | |
1503 | revs->boundary = 2; | |
1504 | return get_revision(revs); | |
1505 | } | |
1506 | ||
1507 | /* | |
1508 | * boundary commits are the commits that are parents of the | |
1509 | * ones we got from get_revision_1() but they themselves are | |
1510 | * not returned from get_revision_1(). Before returning | |
1511 | * 'c', we need to mark its parents that they could be boundaries. | |
1512 | */ | |
1513 | ||
1514 | for (l = c->parents; l; l = l->next) { | |
1515 | struct object *p; | |
1516 | p = &(l->item->object); | |
c33d8593 | 1517 | if (p->flags & (CHILD_SHOWN | SHOWN)) |
86ab4906 JH |
1518 | continue; |
1519 | p->flags |= CHILD_SHOWN; | |
1520 | gc_boundary(&revs->boundary_commits); | |
1521 | add_object_array(p, NULL, &revs->boundary_commits); | |
1522 | } | |
1523 | ||
1524 | return c; | |
d5db6c9e | 1525 | } |