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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" | |
7fefda5c | 9 | #include "graph.h" |
8ecae9b0 | 10 | #include "grep.h" |
8860fd42 | 11 | #include "reflog-walk.h" |
d7a17cad | 12 | #include "patch-ids.h" |
f35f5603 | 13 | #include "decorate.h" |
78892e32 | 14 | #include "log-tree.h" |
894a9d33 | 15 | #include "string-list.h" |
12da1d1f | 16 | #include "line-log.h" |
d72fbe81 | 17 | #include "mailmap.h" |
53d00b39 | 18 | #include "commit-slab.h" |
429bb40a | 19 | #include "dir.h" |
ae563542 | 20 | |
cdcefbc9 LT |
21 | volatile show_early_output_fn_t show_early_output; |
22 | ||
cf2ab916 | 23 | char *path_name(const struct name_path *path, const char *name) |
ae563542 | 24 | { |
cf2ab916 | 25 | const struct name_path *p; |
ae563542 LT |
26 | char *n, *m; |
27 | int nlen = strlen(name); | |
28 | int len = nlen + 1; | |
29 | ||
30 | for (p = path; p; p = p->up) { | |
31 | if (p->elem_len) | |
32 | len += p->elem_len + 1; | |
33 | } | |
34 | n = xmalloc(len); | |
35 | m = n + len - (nlen + 1); | |
36 | strcpy(m, name); | |
37 | for (p = path; p; p = p->up) { | |
38 | if (p->elem_len) { | |
39 | m -= p->elem_len + 1; | |
40 | memcpy(m, p->elem, p->elem_len); | |
41 | m[p->elem_len] = '/'; | |
42 | } | |
43 | } | |
44 | return n; | |
45 | } | |
46 | ||
beba25ab JH |
47 | static int show_path_component_truncated(FILE *out, const char *name, int len) |
48 | { | |
49 | int cnt; | |
50 | for (cnt = 0; cnt < len; cnt++) { | |
51 | int ch = name[cnt]; | |
52 | if (!ch || ch == '\n') | |
53 | return -1; | |
54 | fputc(ch, out); | |
55 | } | |
56 | return len; | |
57 | } | |
58 | ||
59 | static int show_path_truncated(FILE *out, const struct name_path *path) | |
60 | { | |
61 | int emitted, ours; | |
62 | ||
63 | if (!path) | |
64 | return 0; | |
65 | emitted = show_path_truncated(out, path->up); | |
66 | if (emitted < 0) | |
67 | return emitted; | |
68 | if (emitted) | |
69 | fputc('/', out); | |
70 | ours = show_path_component_truncated(out, path->elem, path->elem_len); | |
71 | if (ours < 0) | |
72 | return ours; | |
73 | return ours || emitted; | |
74 | } | |
75 | ||
ff5f5f26 MH |
76 | void show_object_with_name(FILE *out, struct object *obj, |
77 | const struct name_path *path, const char *component) | |
91f17516 | 78 | { |
beba25ab JH |
79 | struct name_path leaf; |
80 | leaf.up = (struct name_path *)path; | |
81 | leaf.elem = component; | |
82 | leaf.elem_len = strlen(component); | |
91f17516 | 83 | |
beba25ab JH |
84 | fprintf(out, "%s ", sha1_to_hex(obj->sha1)); |
85 | show_path_truncated(out, &leaf); | |
86 | fputc('\n', out); | |
91f17516 JH |
87 | } |
88 | ||
1f1e895f LT |
89 | void add_object(struct object *obj, |
90 | struct object_array *p, | |
91 | struct name_path *path, | |
92 | const char *name) | |
ae563542 | 93 | { |
31faeb20 MH |
94 | char *pn = path_name(path, name); |
95 | add_object_array(obj, pn, p); | |
96 | free(pn); | |
ae563542 LT |
97 | } |
98 | ||
99 | static void mark_blob_uninteresting(struct blob *blob) | |
100 | { | |
c1ee9013 MK |
101 | if (!blob) |
102 | return; | |
ae563542 LT |
103 | if (blob->object.flags & UNINTERESTING) |
104 | return; | |
105 | blob->object.flags |= UNINTERESTING; | |
106 | } | |
107 | ||
2ac5e447 | 108 | static void mark_tree_contents_uninteresting(struct tree *tree) |
ae563542 | 109 | { |
f75e53ed | 110 | struct tree_desc desc; |
4c068a98 | 111 | struct name_entry entry; |
ae563542 | 112 | struct object *obj = &tree->object; |
ae563542 | 113 | |
ae563542 LT |
114 | if (!has_sha1_file(obj->sha1)) |
115 | return; | |
116 | if (parse_tree(tree) < 0) | |
117 | die("bad tree %s", sha1_to_hex(obj->sha1)); | |
f75e53ed | 118 | |
6fda5e51 | 119 | init_tree_desc(&desc, tree->buffer, tree->size); |
4c068a98 | 120 | while (tree_entry(&desc, &entry)) { |
4d1012c3 LT |
121 | switch (object_type(entry.mode)) { |
122 | case OBJ_TREE: | |
4c068a98 | 123 | mark_tree_uninteresting(lookup_tree(entry.sha1)); |
4d1012c3 LT |
124 | break; |
125 | case OBJ_BLOB: | |
4c068a98 | 126 | mark_blob_uninteresting(lookup_blob(entry.sha1)); |
4d1012c3 LT |
127 | break; |
128 | default: | |
129 | /* Subproject commit - not in this repository */ | |
130 | break; | |
131 | } | |
ae563542 | 132 | } |
f75e53ed LT |
133 | |
134 | /* | |
135 | * We don't care about the tree any more | |
136 | * after it has been marked uninteresting. | |
137 | */ | |
6e454b9a | 138 | free_tree_buffer(tree); |
ae563542 LT |
139 | } |
140 | ||
2ac5e447 JH |
141 | void mark_tree_uninteresting(struct tree *tree) |
142 | { | |
143 | struct object *obj = &tree->object; | |
144 | ||
145 | if (!tree) | |
146 | return; | |
147 | if (obj->flags & UNINTERESTING) | |
148 | return; | |
149 | obj->flags |= UNINTERESTING; | |
150 | mark_tree_contents_uninteresting(tree); | |
ae563542 LT |
151 | } |
152 | ||
153 | void mark_parents_uninteresting(struct commit *commit) | |
154 | { | |
941ba8db NTND |
155 | struct commit_list *parents = NULL, *l; |
156 | ||
157 | for (l = commit->parents; l; l = l->next) | |
158 | commit_list_insert(l->item, &parents); | |
ae563542 LT |
159 | |
160 | while (parents) { | |
161 | struct commit *commit = parents->item; | |
941ba8db NTND |
162 | l = parents; |
163 | parents = parents->next; | |
164 | free(l); | |
165 | ||
166 | while (commit) { | |
167 | /* | |
168 | * A missing commit is ok iff its parent is marked | |
169 | * uninteresting. | |
170 | * | |
171 | * We just mark such a thing parsed, so that when | |
172 | * it is popped next time around, we won't be trying | |
173 | * to parse it and get an error. | |
174 | */ | |
175 | if (!has_sha1_file(commit->object.sha1)) | |
176 | commit->object.parsed = 1; | |
177 | ||
178 | if (commit->object.flags & UNINTERESTING) | |
179 | break; | |
180 | ||
d2c4af73 | 181 | commit->object.flags |= UNINTERESTING; |
ae563542 | 182 | |
d2c4af73 MU |
183 | /* |
184 | * Normally we haven't parsed the parent | |
185 | * yet, so we won't have a parent of a parent | |
186 | * here. However, it may turn out that we've | |
187 | * reached this commit some other way (where it | |
188 | * wasn't uninteresting), in which case we need | |
189 | * to mark its parents recursively too.. | |
190 | */ | |
941ba8db NTND |
191 | if (!commit->parents) |
192 | break; | |
ae563542 | 193 | |
941ba8db NTND |
194 | for (l = commit->parents->next; l; l = l->next) |
195 | commit_list_insert(l->item, &parents); | |
196 | commit = commit->parents->item; | |
197 | } | |
ae563542 LT |
198 | } |
199 | } | |
200 | ||
ff5f5f26 MH |
201 | static void add_pending_object_with_mode(struct rev_info *revs, |
202 | struct object *obj, | |
203 | const char *name, unsigned mode) | |
ae563542 | 204 | { |
cc243c3c JH |
205 | if (!obj) |
206 | return; | |
aa27e461 | 207 | if (revs->no_walk && (obj->flags & UNINTERESTING)) |
f222abde | 208 | revs->no_walk = 0; |
105e4733 JH |
209 | if (revs->reflog_info && obj->type == OBJ_COMMIT) { |
210 | struct strbuf buf = STRBUF_INIT; | |
cf99a761 | 211 | int len = interpret_branch_name(name, 0, &buf); |
105e4733 JH |
212 | int st; |
213 | ||
214 | if (0 < len && name[len] && buf.len) | |
215 | strbuf_addstr(&buf, name + len); | |
216 | st = add_reflog_for_walk(revs->reflog_info, | |
217 | (struct commit *)obj, | |
218 | buf.buf[0] ? buf.buf: name); | |
219 | strbuf_release(&buf); | |
220 | if (st) | |
221 | return; | |
222 | } | |
bb6c2fba | 223 | add_object_array_with_mode(obj, name, &revs->pending, mode); |
ae563542 LT |
224 | } |
225 | ||
ff5f5f26 MH |
226 | void add_pending_object(struct rev_info *revs, |
227 | struct object *obj, const char *name) | |
2d93b9fa JH |
228 | { |
229 | add_pending_object_with_mode(revs, obj, name, S_IFINVALID); | |
230 | } | |
231 | ||
3384a2df JH |
232 | void add_head_to_pending(struct rev_info *revs) |
233 | { | |
234 | unsigned char sha1[20]; | |
235 | struct object *obj; | |
236 | if (get_sha1("HEAD", sha1)) | |
237 | return; | |
238 | obj = parse_object(sha1); | |
239 | if (!obj) | |
240 | return; | |
241 | add_pending_object(revs, obj, "HEAD"); | |
242 | } | |
243 | ||
ff5f5f26 MH |
244 | static struct object *get_reference(struct rev_info *revs, const char *name, |
245 | const unsigned char *sha1, | |
246 | unsigned int flags) | |
ae563542 LT |
247 | { |
248 | struct object *object; | |
249 | ||
250 | object = parse_object(sha1); | |
cc243c3c JH |
251 | if (!object) { |
252 | if (revs->ignore_missing) | |
253 | return object; | |
ae563542 | 254 | die("bad object %s", name); |
cc243c3c | 255 | } |
cd2bdc53 LT |
256 | object->flags |= flags; |
257 | return object; | |
258 | } | |
259 | ||
26c3177e RS |
260 | void add_pending_sha1(struct rev_info *revs, const char *name, |
261 | const unsigned char *sha1, unsigned int flags) | |
262 | { | |
263 | struct object *object = get_reference(revs, name, sha1, flags); | |
264 | add_pending_object(revs, object, name); | |
265 | } | |
266 | ||
ff5f5f26 MH |
267 | static struct commit *handle_commit(struct rev_info *revs, |
268 | struct object *object, const char *name) | |
cd2bdc53 LT |
269 | { |
270 | unsigned long flags = object->flags; | |
ae563542 LT |
271 | |
272 | /* | |
273 | * Tag object? Look what it points to.. | |
274 | */ | |
1974632c | 275 | while (object->type == OBJ_TAG) { |
ae563542 | 276 | struct tag *tag = (struct tag *) object; |
cd2bdc53 | 277 | if (revs->tag_objects && !(flags & UNINTERESTING)) |
ae563542 | 278 | add_pending_object(revs, object, tag->tag); |
9684afd9 MK |
279 | if (!tag->tagged) |
280 | die("bad tag"); | |
ae563542 | 281 | object = parse_object(tag->tagged->sha1); |
aeeae1b7 JH |
282 | if (!object) { |
283 | if (flags & UNINTERESTING) | |
284 | return NULL; | |
ae563542 | 285 | die("bad object %s", sha1_to_hex(tag->tagged->sha1)); |
aeeae1b7 | 286 | } |
a7435286 | 287 | object->flags |= flags; |
ae563542 LT |
288 | } |
289 | ||
290 | /* | |
291 | * Commit object? Just return it, we'll do all the complex | |
292 | * reachability crud. | |
293 | */ | |
1974632c | 294 | if (object->type == OBJ_COMMIT) { |
ae563542 | 295 | struct commit *commit = (struct commit *)object; |
ae563542 LT |
296 | if (parse_commit(commit) < 0) |
297 | die("unable to parse commit %s", name); | |
d9a83684 | 298 | if (flags & UNINTERESTING) { |
ae563542 | 299 | mark_parents_uninteresting(commit); |
d9a83684 LT |
300 | revs->limited = 1; |
301 | } | |
0f3a290b LT |
302 | if (revs->show_source && !commit->util) |
303 | commit->util = (void *) name; | |
ae563542 LT |
304 | return commit; |
305 | } | |
306 | ||
307 | /* | |
3ea3c215 | 308 | * Tree object? Either mark it uninteresting, or add it |
ae563542 LT |
309 | * to the list of objects to look at later.. |
310 | */ | |
1974632c | 311 | if (object->type == OBJ_TREE) { |
ae563542 LT |
312 | struct tree *tree = (struct tree *)object; |
313 | if (!revs->tree_objects) | |
314 | return NULL; | |
315 | if (flags & UNINTERESTING) { | |
2ac5e447 | 316 | mark_tree_contents_uninteresting(tree); |
ae563542 LT |
317 | return NULL; |
318 | } | |
319 | add_pending_object(revs, object, ""); | |
320 | return NULL; | |
321 | } | |
322 | ||
323 | /* | |
324 | * Blob object? You know the drill by now.. | |
325 | */ | |
1974632c | 326 | if (object->type == OBJ_BLOB) { |
ae563542 LT |
327 | if (!revs->blob_objects) |
328 | return NULL; | |
a7435286 | 329 | if (flags & UNINTERESTING) |
ae563542 | 330 | return NULL; |
ae563542 LT |
331 | add_pending_object(revs, object, ""); |
332 | return NULL; | |
333 | } | |
334 | die("%s is unknown object", name); | |
335 | } | |
336 | ||
a4a88b2b LT |
337 | static int everybody_uninteresting(struct commit_list *orig) |
338 | { | |
339 | struct commit_list *list = orig; | |
340 | while (list) { | |
341 | struct commit *commit = list->item; | |
342 | list = list->next; | |
343 | if (commit->object.flags & UNINTERESTING) | |
344 | continue; | |
345 | return 0; | |
346 | } | |
347 | return 1; | |
348 | } | |
349 | ||
4d826608 KB |
350 | /* |
351 | * A definition of "relevant" commit that we can use to simplify limited graphs | |
352 | * by eliminating side branches. | |
353 | * | |
354 | * A "relevant" commit is one that is !UNINTERESTING (ie we are including it | |
355 | * in our list), or that is a specified BOTTOM commit. Then after computing | |
356 | * a limited list, during processing we can generally ignore boundary merges | |
357 | * coming from outside the graph, (ie from irrelevant parents), and treat | |
358 | * those merges as if they were single-parent. TREESAME is defined to consider | |
359 | * only relevant parents, if any. If we are TREESAME to our on-graph parents, | |
360 | * we don't care if we were !TREESAME to non-graph parents. | |
361 | * | |
362 | * Treating bottom commits as relevant ensures that a limited graph's | |
363 | * connection to the actual bottom commit is not viewed as a side branch, but | |
364 | * treated as part of the graph. For example: | |
365 | * | |
366 | * ....Z...A---X---o---o---B | |
367 | * . / | |
368 | * W---Y | |
369 | * | |
370 | * When computing "A..B", the A-X connection is at least as important as | |
371 | * Y-X, despite A being flagged UNINTERESTING. | |
372 | * | |
373 | * And when computing --ancestry-path "A..B", the A-X connection is more | |
374 | * important than Y-X, despite both A and Y being flagged UNINTERESTING. | |
375 | */ | |
376 | static inline int relevant_commit(struct commit *commit) | |
377 | { | |
378 | return (commit->object.flags & (UNINTERESTING | BOTTOM)) != UNINTERESTING; | |
379 | } | |
380 | ||
381 | /* | |
382 | * Return a single relevant commit from a parent list. If we are a TREESAME | |
383 | * commit, and this selects one of our parents, then we can safely simplify to | |
384 | * that parent. | |
385 | */ | |
386 | static struct commit *one_relevant_parent(const struct rev_info *revs, | |
387 | struct commit_list *orig) | |
388 | { | |
389 | struct commit_list *list = orig; | |
390 | struct commit *relevant = NULL; | |
391 | ||
392 | if (!orig) | |
393 | return NULL; | |
394 | ||
395 | /* | |
396 | * For 1-parent commits, or if first-parent-only, then return that | |
397 | * first parent (even if not "relevant" by the above definition). | |
398 | * TREESAME will have been set purely on that parent. | |
399 | */ | |
400 | if (revs->first_parent_only || !orig->next) | |
401 | return orig->item; | |
402 | ||
403 | /* | |
404 | * For multi-parent commits, identify a sole relevant parent, if any. | |
405 | * If we have only one relevant parent, then TREESAME will be set purely | |
406 | * with regard to that parent, and we can simplify accordingly. | |
407 | * | |
408 | * If we have more than one relevant parent, or no relevant parents | |
409 | * (and multiple irrelevant ones), then we can't select a parent here | |
410 | * and return NULL. | |
411 | */ | |
412 | while (list) { | |
413 | struct commit *commit = list->item; | |
414 | list = list->next; | |
415 | if (relevant_commit(commit)) { | |
416 | if (relevant) | |
417 | return NULL; | |
418 | relevant = commit; | |
419 | } | |
420 | } | |
421 | return relevant; | |
422 | } | |
423 | ||
0a4ba7f8 JH |
424 | /* |
425 | * The goal is to get REV_TREE_NEW as the result only if the | |
ceff8e7a LT |
426 | * diff consists of all '+' (and no other changes), REV_TREE_OLD |
427 | * if the whole diff is removal of old data, and otherwise | |
428 | * REV_TREE_DIFFERENT (of course if the trees are the same we | |
429 | * want REV_TREE_SAME). | |
430 | * That means that once we get to REV_TREE_DIFFERENT, we do not | |
431 | * have to look any further. | |
0a4ba7f8 | 432 | */ |
8efdc326 | 433 | static int tree_difference = REV_TREE_SAME; |
a4a88b2b LT |
434 | |
435 | static void file_add_remove(struct diff_options *options, | |
436 | int addremove, unsigned mode, | |
437 | const unsigned char *sha1, | |
e5450100 | 438 | int sha1_valid, |
e3d42c47 | 439 | const char *fullpath, unsigned dirty_submodule) |
a4a88b2b | 440 | { |
ceff8e7a | 441 | int diff = addremove == '+' ? REV_TREE_NEW : REV_TREE_OLD; |
a4a88b2b | 442 | |
ceff8e7a | 443 | tree_difference |= diff; |
dd47aa31 | 444 | if (tree_difference == REV_TREE_DIFFERENT) |
8f67f8ae | 445 | DIFF_OPT_SET(options, HAS_CHANGES); |
a4a88b2b LT |
446 | } |
447 | ||
448 | static void file_change(struct diff_options *options, | |
449 | unsigned old_mode, unsigned new_mode, | |
450 | const unsigned char *old_sha1, | |
451 | const unsigned char *new_sha1, | |
e5450100 | 452 | int old_sha1_valid, int new_sha1_valid, |
e3d42c47 JL |
453 | const char *fullpath, |
454 | unsigned old_dirty_submodule, unsigned new_dirty_submodule) | |
a4a88b2b | 455 | { |
8efdc326 | 456 | tree_difference = REV_TREE_DIFFERENT; |
8f67f8ae | 457 | DIFF_OPT_SET(options, HAS_CHANGES); |
a4a88b2b LT |
458 | } |
459 | ||
ff5f5f26 MH |
460 | static int rev_compare_tree(struct rev_info *revs, |
461 | struct commit *parent, struct commit *commit) | |
a4a88b2b | 462 | { |
3a5e8608 LT |
463 | struct tree *t1 = parent->tree; |
464 | struct tree *t2 = commit->tree; | |
465 | ||
a4a88b2b | 466 | if (!t1) |
8efdc326 | 467 | return REV_TREE_NEW; |
ceff8e7a LT |
468 | if (!t2) |
469 | return REV_TREE_OLD; | |
78892e32 LT |
470 | |
471 | if (revs->simplify_by_decoration) { | |
472 | /* | |
473 | * If we are simplifying by decoration, then the commit | |
474 | * is worth showing if it has a tag pointing at it. | |
475 | */ | |
2608c249 | 476 | if (get_name_decoration(&commit->object)) |
78892e32 LT |
477 | return REV_TREE_DIFFERENT; |
478 | /* | |
479 | * A commit that is not pointed by a tag is uninteresting | |
480 | * if we are not limited by path. This means that you will | |
481 | * see the usual "commits that touch the paths" plus any | |
482 | * tagged commit by specifying both --simplify-by-decoration | |
483 | * and pathspec. | |
484 | */ | |
afe069d1 | 485 | if (!revs->prune_data.nr) |
78892e32 LT |
486 | return REV_TREE_SAME; |
487 | } | |
ceff8e7a | 488 | |
8efdc326 | 489 | tree_difference = REV_TREE_SAME; |
8f67f8ae | 490 | DIFF_OPT_CLR(&revs->pruning, HAS_CHANGES); |
c4e05b1a | 491 | if (diff_tree_sha1(t1->object.sha1, t2->object.sha1, "", |
cd2bdc53 | 492 | &revs->pruning) < 0) |
8efdc326 | 493 | return REV_TREE_DIFFERENT; |
a4a88b2b LT |
494 | return tree_difference; |
495 | } | |
496 | ||
3a5e8608 | 497 | static int rev_same_tree_as_empty(struct rev_info *revs, struct commit *commit) |
a4a88b2b LT |
498 | { |
499 | int retval; | |
3a5e8608 | 500 | struct tree *t1 = commit->tree; |
a4a88b2b LT |
501 | |
502 | if (!t1) | |
503 | return 0; | |
504 | ||
0a4ba7f8 | 505 | tree_difference = REV_TREE_SAME; |
8f67f8ae | 506 | DIFF_OPT_CLR(&revs->pruning, HAS_CHANGES); |
6275c91c | 507 | retval = diff_tree_sha1(NULL, t1->object.sha1, "", &revs->pruning); |
a4a88b2b | 508 | |
0a4ba7f8 | 509 | return retval >= 0 && (tree_difference == REV_TREE_SAME); |
a4a88b2b LT |
510 | } |
511 | ||
d0af663e KB |
512 | struct treesame_state { |
513 | unsigned int nparents; | |
514 | unsigned char treesame[FLEX_ARRAY]; | |
515 | }; | |
516 | ||
517 | static struct treesame_state *initialise_treesame(struct rev_info *revs, struct commit *commit) | |
518 | { | |
519 | unsigned n = commit_list_count(commit->parents); | |
520 | struct treesame_state *st = xcalloc(1, sizeof(*st) + n); | |
521 | st->nparents = n; | |
522 | add_decoration(&revs->treesame, &commit->object, st); | |
523 | return st; | |
524 | } | |
525 | ||
526 | /* | |
527 | * Must be called immediately after removing the nth_parent from a commit's | |
528 | * parent list, if we are maintaining the per-parent treesame[] decoration. | |
529 | * This does not recalculate the master TREESAME flag - update_treesame() | |
530 | * should be called to update it after a sequence of treesame[] modifications | |
531 | * that may have affected it. | |
532 | */ | |
533 | static int compact_treesame(struct rev_info *revs, struct commit *commit, unsigned nth_parent) | |
534 | { | |
535 | struct treesame_state *st; | |
536 | int old_same; | |
537 | ||
538 | if (!commit->parents) { | |
539 | /* | |
540 | * Have just removed the only parent from a non-merge. | |
541 | * Different handling, as we lack decoration. | |
542 | */ | |
543 | if (nth_parent != 0) | |
544 | die("compact_treesame %u", nth_parent); | |
545 | old_same = !!(commit->object.flags & TREESAME); | |
546 | if (rev_same_tree_as_empty(revs, commit)) | |
547 | commit->object.flags |= TREESAME; | |
548 | else | |
549 | commit->object.flags &= ~TREESAME; | |
550 | return old_same; | |
551 | } | |
552 | ||
553 | st = lookup_decoration(&revs->treesame, &commit->object); | |
554 | if (!st || nth_parent >= st->nparents) | |
555 | die("compact_treesame %u", nth_parent); | |
556 | ||
557 | old_same = st->treesame[nth_parent]; | |
558 | memmove(st->treesame + nth_parent, | |
559 | st->treesame + nth_parent + 1, | |
560 | st->nparents - nth_parent - 1); | |
561 | ||
562 | /* | |
563 | * If we've just become a non-merge commit, update TREESAME | |
564 | * immediately, and remove the no-longer-needed decoration. | |
565 | * If still a merge, defer update until update_treesame(). | |
566 | */ | |
567 | if (--st->nparents == 1) { | |
568 | if (commit->parents->next) | |
569 | die("compact_treesame parents mismatch"); | |
570 | if (st->treesame[0] && revs->dense) | |
571 | commit->object.flags |= TREESAME; | |
572 | else | |
573 | commit->object.flags &= ~TREESAME; | |
574 | free(add_decoration(&revs->treesame, &commit->object, NULL)); | |
575 | } | |
576 | ||
577 | return old_same; | |
578 | } | |
579 | ||
580 | static unsigned update_treesame(struct rev_info *revs, struct commit *commit) | |
581 | { | |
582 | if (commit->parents && commit->parents->next) { | |
583 | unsigned n; | |
584 | struct treesame_state *st; | |
4d826608 KB |
585 | struct commit_list *p; |
586 | unsigned relevant_parents; | |
587 | unsigned relevant_change, irrelevant_change; | |
d0af663e KB |
588 | |
589 | st = lookup_decoration(&revs->treesame, &commit->object); | |
590 | if (!st) | |
591 | die("update_treesame %s", sha1_to_hex(commit->object.sha1)); | |
4d826608 KB |
592 | relevant_parents = 0; |
593 | relevant_change = irrelevant_change = 0; | |
594 | for (p = commit->parents, n = 0; p; n++, p = p->next) { | |
595 | if (relevant_commit(p->item)) { | |
596 | relevant_change |= !st->treesame[n]; | |
597 | relevant_parents++; | |
598 | } else | |
599 | irrelevant_change |= !st->treesame[n]; | |
d0af663e | 600 | } |
4d826608 KB |
601 | if (relevant_parents ? relevant_change : irrelevant_change) |
602 | commit->object.flags &= ~TREESAME; | |
603 | else | |
604 | commit->object.flags |= TREESAME; | |
d0af663e KB |
605 | } |
606 | ||
607 | return commit->object.flags & TREESAME; | |
608 | } | |
609 | ||
4d826608 KB |
610 | static inline int limiting_can_increase_treesame(const struct rev_info *revs) |
611 | { | |
612 | /* | |
613 | * TREESAME is irrelevant unless prune && dense; | |
614 | * if simplify_history is set, we can't have a mixture of TREESAME and | |
615 | * !TREESAME INTERESTING parents (and we don't have treesame[] | |
616 | * decoration anyway); | |
617 | * if first_parent_only is set, then the TREESAME flag is locked | |
618 | * against the first parent (and again we lack treesame[] decoration). | |
619 | */ | |
620 | return revs->prune && revs->dense && | |
621 | !revs->simplify_history && | |
622 | !revs->first_parent_only; | |
623 | } | |
624 | ||
a4a88b2b LT |
625 | static void try_to_simplify_commit(struct rev_info *revs, struct commit *commit) |
626 | { | |
627 | struct commit_list **pp, *parent; | |
d0af663e | 628 | struct treesame_state *ts = NULL; |
4d826608 KB |
629 | int relevant_change = 0, irrelevant_change = 0; |
630 | int relevant_parents, nth_parent; | |
a4a88b2b | 631 | |
53b2c823 LT |
632 | /* |
633 | * If we don't do pruning, everything is interesting | |
634 | */ | |
7dc0fe3b | 635 | if (!revs->prune) |
53b2c823 | 636 | return; |
53b2c823 | 637 | |
a4a88b2b LT |
638 | if (!commit->tree) |
639 | return; | |
640 | ||
641 | if (!commit->parents) { | |
3a5e8608 | 642 | if (rev_same_tree_as_empty(revs, commit)) |
7dc0fe3b | 643 | commit->object.flags |= TREESAME; |
a4a88b2b LT |
644 | return; |
645 | } | |
646 | ||
53b2c823 LT |
647 | /* |
648 | * Normal non-merge commit? If we don't want to make the | |
649 | * history dense, we consider it always to be a change.. | |
650 | */ | |
7dc0fe3b | 651 | if (!revs->dense && !commit->parents->next) |
53b2c823 | 652 | return; |
53b2c823 | 653 | |
4d826608 | 654 | for (pp = &commit->parents, nth_parent = 0, relevant_parents = 0; |
d0af663e KB |
655 | (parent = *pp) != NULL; |
656 | pp = &parent->next, nth_parent++) { | |
a4a88b2b | 657 | struct commit *p = parent->item; |
4d826608 KB |
658 | if (relevant_commit(p)) |
659 | relevant_parents++; | |
a4a88b2b | 660 | |
d0af663e KB |
661 | if (nth_parent == 1) { |
662 | /* | |
663 | * This our second loop iteration - so we now know | |
664 | * we're dealing with a merge. | |
665 | * | |
666 | * Do not compare with later parents when we care only about | |
667 | * the first parent chain, in order to avoid derailing the | |
668 | * traversal to follow a side branch that brought everything | |
669 | * in the path we are limited to by the pathspec. | |
670 | */ | |
671 | if (revs->first_parent_only) | |
672 | break; | |
673 | /* | |
674 | * If this will remain a potentially-simplifiable | |
675 | * merge, remember per-parent treesame if needed. | |
676 | * Initialise the array with the comparison from our | |
677 | * first iteration. | |
678 | */ | |
679 | if (revs->treesame.name && | |
680 | !revs->simplify_history && | |
681 | !(commit->object.flags & UNINTERESTING)) { | |
682 | ts = initialise_treesame(revs, commit); | |
4d826608 | 683 | if (!(irrelevant_change || relevant_change)) |
d0af663e KB |
684 | ts->treesame[0] = 1; |
685 | } | |
686 | } | |
cc0e6c5a AR |
687 | if (parse_commit(p) < 0) |
688 | die("cannot simplify commit %s (because of %s)", | |
689 | sha1_to_hex(commit->object.sha1), | |
690 | sha1_to_hex(p->object.sha1)); | |
3a5e8608 | 691 | switch (rev_compare_tree(revs, p, commit)) { |
8efdc326 | 692 | case REV_TREE_SAME: |
141efdba | 693 | if (!revs->simplify_history || !relevant_commit(p)) { |
f3219fbb JH |
694 | /* Even if a merge with an uninteresting |
695 | * side branch brought the entire change | |
696 | * we are interested in, we do not want | |
697 | * to lose the other branches of this | |
698 | * merge, so we just keep going. | |
699 | */ | |
d0af663e KB |
700 | if (ts) |
701 | ts->treesame[nth_parent] = 1; | |
f3219fbb JH |
702 | continue; |
703 | } | |
a4a88b2b LT |
704 | parent->next = NULL; |
705 | commit->parents = parent; | |
7dc0fe3b | 706 | commit->object.flags |= TREESAME; |
a4a88b2b LT |
707 | return; |
708 | ||
8efdc326 FK |
709 | case REV_TREE_NEW: |
710 | if (revs->remove_empty_trees && | |
3a5e8608 | 711 | rev_same_tree_as_empty(revs, p)) { |
c348f31a JH |
712 | /* We are adding all the specified |
713 | * paths from this parent, so the | |
714 | * history beyond this parent is not | |
715 | * interesting. Remove its parents | |
716 | * (they are grandparents for us). | |
717 | * IOW, we pretend this parent is a | |
718 | * "root" commit. | |
a41e109c | 719 | */ |
cc0e6c5a AR |
720 | if (parse_commit(p) < 0) |
721 | die("cannot simplify commit %s (invalid %s)", | |
722 | sha1_to_hex(commit->object.sha1), | |
723 | sha1_to_hex(p->object.sha1)); | |
c348f31a | 724 | p->parents = NULL; |
a4a88b2b LT |
725 | } |
726 | /* fallthrough */ | |
ceff8e7a | 727 | case REV_TREE_OLD: |
8efdc326 | 728 | case REV_TREE_DIFFERENT: |
4d826608 KB |
729 | if (relevant_commit(p)) |
730 | relevant_change = 1; | |
731 | else | |
732 | irrelevant_change = 1; | |
a4a88b2b LT |
733 | continue; |
734 | } | |
735 | die("bad tree compare for commit %s", sha1_to_hex(commit->object.sha1)); | |
736 | } | |
4d826608 KB |
737 | |
738 | /* | |
739 | * TREESAME is straightforward for single-parent commits. For merge | |
740 | * commits, it is most useful to define it so that "irrelevant" | |
741 | * parents cannot make us !TREESAME - if we have any relevant | |
742 | * parents, then we only consider TREESAMEness with respect to them, | |
743 | * allowing irrelevant merges from uninteresting branches to be | |
744 | * simplified away. Only if we have only irrelevant parents do we | |
745 | * base TREESAME on them. Note that this logic is replicated in | |
746 | * update_treesame, which should be kept in sync. | |
747 | */ | |
748 | if (relevant_parents ? !relevant_change : !irrelevant_change) | |
749 | commit->object.flags |= TREESAME; | |
a4a88b2b LT |
750 | } |
751 | ||
47e44ed1 | 752 | static void commit_list_insert_by_date_cached(struct commit *p, struct commit_list **head, |
fce87ae5 AG |
753 | struct commit_list *cached_base, struct commit_list **cache) |
754 | { | |
755 | struct commit_list *new_entry; | |
756 | ||
757 | if (cached_base && p->date < cached_base->item->date) | |
47e44ed1 | 758 | new_entry = commit_list_insert_by_date(p, &cached_base->next); |
fce87ae5 | 759 | else |
47e44ed1 | 760 | new_entry = commit_list_insert_by_date(p, head); |
fce87ae5 AG |
761 | |
762 | if (cache && (!*cache || p->date < (*cache)->item->date)) | |
763 | *cache = new_entry; | |
764 | } | |
765 | ||
766 | static int add_parents_to_list(struct rev_info *revs, struct commit *commit, | |
767 | struct commit_list **list, struct commit_list **cache_ptr) | |
a4a88b2b LT |
768 | { |
769 | struct commit_list *parent = commit->parents; | |
577ed5c2 | 770 | unsigned left_flag; |
fce87ae5 | 771 | struct commit_list *cached_base = cache_ptr ? *cache_ptr : NULL; |
a4a88b2b | 772 | |
3381c790 | 773 | if (commit->object.flags & ADDED) |
cc0e6c5a | 774 | return 0; |
3381c790 LT |
775 | commit->object.flags |= ADDED; |
776 | ||
a330de31 VM |
777 | if (revs->include_check && |
778 | !revs->include_check(commit, revs->include_check_data)) | |
779 | return 0; | |
780 | ||
a4a88b2b LT |
781 | /* |
782 | * If the commit is uninteresting, don't try to | |
783 | * prune parents - we want the maximal uninteresting | |
784 | * set. | |
785 | * | |
786 | * Normally we haven't parsed the parent | |
787 | * yet, so we won't have a parent of a parent | |
788 | * here. However, it may turn out that we've | |
789 | * reached this commit some other way (where it | |
790 | * wasn't uninteresting), in which case we need | |
791 | * to mark its parents recursively too.. | |
792 | */ | |
793 | if (commit->object.flags & UNINTERESTING) { | |
794 | while (parent) { | |
795 | struct commit *p = parent->item; | |
796 | parent = parent->next; | |
aeeae1b7 JH |
797 | if (p) |
798 | p->object.flags |= UNINTERESTING; | |
cc0e6c5a | 799 | if (parse_commit(p) < 0) |
aeeae1b7 | 800 | continue; |
a4a88b2b LT |
801 | if (p->parents) |
802 | mark_parents_uninteresting(p); | |
803 | if (p->object.flags & SEEN) | |
804 | continue; | |
805 | p->object.flags |= SEEN; | |
47e44ed1 | 806 | commit_list_insert_by_date_cached(p, list, cached_base, cache_ptr); |
a4a88b2b | 807 | } |
cc0e6c5a | 808 | return 0; |
a4a88b2b LT |
809 | } |
810 | ||
811 | /* | |
812 | * Ok, the commit wasn't uninteresting. Try to | |
813 | * simplify the commit history and find the parent | |
814 | * that has no differences in the path set if one exists. | |
815 | */ | |
53b2c823 | 816 | try_to_simplify_commit(revs, commit); |
a4a88b2b | 817 | |
ba1d4505 | 818 | if (revs->no_walk) |
cc0e6c5a | 819 | return 0; |
ba1d4505 | 820 | |
577ed5c2 | 821 | left_flag = (commit->object.flags & SYMMETRIC_LEFT); |
0053e902 | 822 | |
d9c292e8 | 823 | for (parent = commit->parents; parent; parent = parent->next) { |
a4a88b2b LT |
824 | struct commit *p = parent->item; |
825 | ||
cc0e6c5a AR |
826 | if (parse_commit(p) < 0) |
827 | return -1; | |
0f3a290b LT |
828 | if (revs->show_source && !p->util) |
829 | p->util = commit->util; | |
577ed5c2 | 830 | p->object.flags |= left_flag; |
ad1012eb LH |
831 | if (!(p->object.flags & SEEN)) { |
832 | p->object.flags |= SEEN; | |
47e44ed1 | 833 | commit_list_insert_by_date_cached(p, list, cached_base, cache_ptr); |
ad1012eb | 834 | } |
60d30b02 | 835 | if (revs->first_parent_only) |
d9c292e8 | 836 | break; |
a4a88b2b | 837 | } |
cc0e6c5a | 838 | return 0; |
a4a88b2b LT |
839 | } |
840 | ||
36d56de6 | 841 | static void cherry_pick_list(struct commit_list *list, struct rev_info *revs) |
d7a17cad JH |
842 | { |
843 | struct commit_list *p; | |
844 | int left_count = 0, right_count = 0; | |
845 | int left_first; | |
846 | struct patch_ids ids; | |
adbbb31e | 847 | unsigned cherry_flag; |
d7a17cad JH |
848 | |
849 | /* First count the commits on the left and on the right */ | |
850 | for (p = list; p; p = p->next) { | |
851 | struct commit *commit = p->item; | |
852 | unsigned flags = commit->object.flags; | |
853 | if (flags & BOUNDARY) | |
854 | ; | |
855 | else if (flags & SYMMETRIC_LEFT) | |
856 | left_count++; | |
857 | else | |
858 | right_count++; | |
859 | } | |
860 | ||
36c07975 TR |
861 | if (!left_count || !right_count) |
862 | return; | |
863 | ||
d7a17cad JH |
864 | left_first = left_count < right_count; |
865 | init_patch_ids(&ids); | |
66f13625 | 866 | ids.diffopts.pathspec = revs->diffopt.pathspec; |
d7a17cad JH |
867 | |
868 | /* Compute patch-ids for one side */ | |
869 | for (p = list; p; p = p->next) { | |
870 | struct commit *commit = p->item; | |
871 | unsigned flags = commit->object.flags; | |
872 | ||
873 | if (flags & BOUNDARY) | |
874 | continue; | |
875 | /* | |
876 | * If we have fewer left, left_first is set and we omit | |
877 | * commits on the right branch in this loop. If we have | |
878 | * fewer right, we skip the left ones. | |
879 | */ | |
880 | if (left_first != !!(flags & SYMMETRIC_LEFT)) | |
881 | continue; | |
882 | commit->util = add_commit_patch_id(commit, &ids); | |
883 | } | |
884 | ||
adbbb31e MG |
885 | /* either cherry_mark or cherry_pick are true */ |
886 | cherry_flag = revs->cherry_mark ? PATCHSAME : SHOWN; | |
887 | ||
d7a17cad JH |
888 | /* Check the other side */ |
889 | for (p = list; p; p = p->next) { | |
890 | struct commit *commit = p->item; | |
891 | struct patch_id *id; | |
892 | unsigned flags = commit->object.flags; | |
893 | ||
894 | if (flags & BOUNDARY) | |
895 | continue; | |
896 | /* | |
897 | * If we have fewer left, left_first is set and we omit | |
898 | * commits on the left branch in this loop. | |
899 | */ | |
900 | if (left_first == !!(flags & SYMMETRIC_LEFT)) | |
901 | continue; | |
902 | ||
903 | /* | |
904 | * Have we seen the same patch id? | |
905 | */ | |
906 | id = has_commit_patch_id(commit, &ids); | |
907 | if (!id) | |
908 | continue; | |
909 | id->seen = 1; | |
adbbb31e | 910 | commit->object.flags |= cherry_flag; |
d7a17cad JH |
911 | } |
912 | ||
913 | /* Now check the original side for seen ones */ | |
914 | for (p = list; p; p = p->next) { | |
915 | struct commit *commit = p->item; | |
916 | struct patch_id *ent; | |
917 | ||
918 | ent = commit->util; | |
919 | if (!ent) | |
920 | continue; | |
921 | if (ent->seen) | |
adbbb31e | 922 | commit->object.flags |= cherry_flag; |
d7a17cad JH |
923 | commit->util = NULL; |
924 | } | |
925 | ||
926 | free_patch_ids(&ids); | |
927 | } | |
928 | ||
7d004199 LT |
929 | /* How many extra uninteresting commits we want to see.. */ |
930 | #define SLOP 5 | |
931 | ||
932 | static int still_interesting(struct commit_list *src, unsigned long date, int slop) | |
3131b713 | 933 | { |
7d004199 LT |
934 | /* |
935 | * No source list at all? We're definitely done.. | |
936 | */ | |
937 | if (!src) | |
938 | return 0; | |
939 | ||
940 | /* | |
941 | * Does the destination list contain entries with a date | |
942 | * before the source list? Definitely _not_ done. | |
943 | */ | |
c19d1b4e | 944 | if (date <= src->item->date) |
7d004199 LT |
945 | return SLOP; |
946 | ||
947 | /* | |
948 | * Does the source list still have interesting commits in | |
949 | * it? Definitely not done.. | |
950 | */ | |
951 | if (!everybody_uninteresting(src)) | |
952 | return SLOP; | |
953 | ||
954 | /* Ok, we're closing in.. */ | |
955 | return slop-1; | |
3131b713 LT |
956 | } |
957 | ||
ebdc94f3 JH |
958 | /* |
959 | * "rev-list --ancestry-path A..B" computes commits that are ancestors | |
960 | * of B but not ancestors of A but further limits the result to those | |
961 | * that are descendants of A. This takes the list of bottom commits and | |
962 | * the result of "A..B" without --ancestry-path, and limits the latter | |
963 | * further to the ones that can reach one of the commits in "bottom". | |
964 | */ | |
965 | static void limit_to_ancestry(struct commit_list *bottom, struct commit_list *list) | |
966 | { | |
967 | struct commit_list *p; | |
968 | struct commit_list *rlist = NULL; | |
969 | int made_progress; | |
970 | ||
971 | /* | |
972 | * Reverse the list so that it will be likely that we would | |
973 | * process parents before children. | |
974 | */ | |
975 | for (p = list; p; p = p->next) | |
976 | commit_list_insert(p->item, &rlist); | |
977 | ||
978 | for (p = bottom; p; p = p->next) | |
979 | p->item->object.flags |= TMP_MARK; | |
980 | ||
981 | /* | |
982 | * Mark the ones that can reach bottom commits in "list", | |
983 | * in a bottom-up fashion. | |
984 | */ | |
985 | do { | |
986 | made_progress = 0; | |
987 | for (p = rlist; p; p = p->next) { | |
988 | struct commit *c = p->item; | |
989 | struct commit_list *parents; | |
990 | if (c->object.flags & (TMP_MARK | UNINTERESTING)) | |
991 | continue; | |
992 | for (parents = c->parents; | |
993 | parents; | |
994 | parents = parents->next) { | |
995 | if (!(parents->item->object.flags & TMP_MARK)) | |
996 | continue; | |
997 | c->object.flags |= TMP_MARK; | |
998 | made_progress = 1; | |
999 | break; | |
1000 | } | |
1001 | } | |
1002 | } while (made_progress); | |
1003 | ||
1004 | /* | |
1005 | * NEEDSWORK: decide if we want to remove parents that are | |
1006 | * not marked with TMP_MARK from commit->parents for commits | |
1007 | * in the resulting list. We may not want to do that, though. | |
1008 | */ | |
1009 | ||
1010 | /* | |
1011 | * The ones that are not marked with TMP_MARK are uninteresting | |
1012 | */ | |
1013 | for (p = list; p; p = p->next) { | |
1014 | struct commit *c = p->item; | |
1015 | if (c->object.flags & TMP_MARK) | |
1016 | continue; | |
1017 | c->object.flags |= UNINTERESTING; | |
1018 | } | |
1019 | ||
1020 | /* We are done with the TMP_MARK */ | |
1021 | for (p = list; p; p = p->next) | |
1022 | p->item->object.flags &= ~TMP_MARK; | |
1023 | for (p = bottom; p; p = p->next) | |
1024 | p->item->object.flags &= ~TMP_MARK; | |
1025 | free_commit_list(rlist); | |
1026 | } | |
1027 | ||
1028 | /* | |
1029 | * Before walking the history, keep the set of "negative" refs the | |
1030 | * caller has asked to exclude. | |
1031 | * | |
1032 | * This is used to compute "rev-list --ancestry-path A..B", as we need | |
1033 | * to filter the result of "A..B" further to the ones that can actually | |
1034 | * reach A. | |
1035 | */ | |
7f34a46f | 1036 | static struct commit_list *collect_bottom_commits(struct commit_list *list) |
ebdc94f3 | 1037 | { |
7f34a46f KB |
1038 | struct commit_list *elem, *bottom = NULL; |
1039 | for (elem = list; elem; elem = elem->next) | |
1040 | if (elem->item->object.flags & BOTTOM) | |
1041 | commit_list_insert(elem->item, &bottom); | |
ebdc94f3 JH |
1042 | return bottom; |
1043 | } | |
1044 | ||
60adf7d7 MG |
1045 | /* Assumes either left_only or right_only is set */ |
1046 | static void limit_left_right(struct commit_list *list, struct rev_info *revs) | |
1047 | { | |
1048 | struct commit_list *p; | |
1049 | ||
1050 | for (p = list; p; p = p->next) { | |
1051 | struct commit *commit = p->item; | |
1052 | ||
1053 | if (revs->right_only) { | |
1054 | if (commit->object.flags & SYMMETRIC_LEFT) | |
1055 | commit->object.flags |= SHOWN; | |
1056 | } else /* revs->left_only is set */ | |
1057 | if (!(commit->object.flags & SYMMETRIC_LEFT)) | |
1058 | commit->object.flags |= SHOWN; | |
1059 | } | |
1060 | } | |
1061 | ||
cc0e6c5a | 1062 | static int limit_list(struct rev_info *revs) |
a4a88b2b | 1063 | { |
7d004199 LT |
1064 | int slop = SLOP; |
1065 | unsigned long date = ~0ul; | |
a4a88b2b LT |
1066 | struct commit_list *list = revs->commits; |
1067 | struct commit_list *newlist = NULL; | |
1068 | struct commit_list **p = &newlist; | |
ebdc94f3 JH |
1069 | struct commit_list *bottom = NULL; |
1070 | ||
1071 | if (revs->ancestry_path) { | |
7f34a46f | 1072 | bottom = collect_bottom_commits(list); |
ebdc94f3 | 1073 | if (!bottom) |
97b03c35 | 1074 | die("--ancestry-path given but there are no bottom commits"); |
ebdc94f3 | 1075 | } |
a4a88b2b LT |
1076 | |
1077 | while (list) { | |
1078 | struct commit_list *entry = list; | |
1079 | struct commit *commit = list->item; | |
1080 | struct object *obj = &commit->object; | |
cdcefbc9 | 1081 | show_early_output_fn_t show; |
a4a88b2b LT |
1082 | |
1083 | list = list->next; | |
1084 | free(entry); | |
1085 | ||
1086 | if (revs->max_age != -1 && (commit->date < revs->max_age)) | |
1087 | obj->flags |= UNINTERESTING; | |
fce87ae5 | 1088 | if (add_parents_to_list(revs, commit, &list, NULL) < 0) |
cc0e6c5a | 1089 | return -1; |
a4a88b2b LT |
1090 | if (obj->flags & UNINTERESTING) { |
1091 | mark_parents_uninteresting(commit); | |
7d004199 LT |
1092 | if (revs->show_all) |
1093 | p = &commit_list_insert(commit, p)->next; | |
1094 | slop = still_interesting(list, date, slop); | |
1095 | if (slop) | |
3131b713 | 1096 | continue; |
7d004199 LT |
1097 | /* If showing all, add the whole pending list to the end */ |
1098 | if (revs->show_all) | |
1099 | *p = list; | |
1100 | break; | |
a4a88b2b LT |
1101 | } |
1102 | if (revs->min_age != -1 && (commit->date > revs->min_age)) | |
1103 | continue; | |
7d004199 | 1104 | date = commit->date; |
a4a88b2b | 1105 | p = &commit_list_insert(commit, p)->next; |
cdcefbc9 LT |
1106 | |
1107 | show = show_early_output; | |
1108 | if (!show) | |
1109 | continue; | |
1110 | ||
1111 | show(revs, newlist); | |
1112 | show_early_output = NULL; | |
a4a88b2b | 1113 | } |
adbbb31e | 1114 | if (revs->cherry_pick || revs->cherry_mark) |
36d56de6 | 1115 | cherry_pick_list(newlist, revs); |
d7a17cad | 1116 | |
60adf7d7 MG |
1117 | if (revs->left_only || revs->right_only) |
1118 | limit_left_right(newlist, revs); | |
1119 | ||
ebdc94f3 JH |
1120 | if (bottom) { |
1121 | limit_to_ancestry(bottom, newlist); | |
1122 | free_commit_list(bottom); | |
1123 | } | |
1124 | ||
4d826608 KB |
1125 | /* |
1126 | * Check if any commits have become TREESAME by some of their parents | |
1127 | * becoming UNINTERESTING. | |
1128 | */ | |
1129 | if (limiting_can_increase_treesame(revs)) | |
1130 | for (list = newlist; list; list = list->next) { | |
1131 | struct commit *c = list->item; | |
1132 | if (c->object.flags & (UNINTERESTING | TREESAME)) | |
1133 | continue; | |
1134 | update_treesame(revs, c); | |
1135 | } | |
1136 | ||
a4a88b2b | 1137 | revs->commits = newlist; |
cc0e6c5a | 1138 | return 0; |
a4a88b2b LT |
1139 | } |
1140 | ||
df835d3a MH |
1141 | /* |
1142 | * Add an entry to refs->cmdline with the specified information. | |
1143 | * *name is copied. | |
1144 | */ | |
281eee47 JH |
1145 | static void add_rev_cmdline(struct rev_info *revs, |
1146 | struct object *item, | |
1147 | const char *name, | |
1148 | int whence, | |
1149 | unsigned flags) | |
1150 | { | |
1151 | struct rev_cmdline_info *info = &revs->cmdline; | |
1152 | int nr = info->nr; | |
1153 | ||
1154 | ALLOC_GROW(info->rev, nr + 1, info->alloc); | |
1155 | info->rev[nr].item = item; | |
df835d3a | 1156 | info->rev[nr].name = xstrdup(name); |
281eee47 JH |
1157 | info->rev[nr].whence = whence; |
1158 | info->rev[nr].flags = flags; | |
1159 | info->nr++; | |
1160 | } | |
1161 | ||
a765499a KB |
1162 | static void add_rev_cmdline_list(struct rev_info *revs, |
1163 | struct commit_list *commit_list, | |
1164 | int whence, | |
1165 | unsigned flags) | |
1166 | { | |
1167 | while (commit_list) { | |
1168 | struct object *object = &commit_list->item->object; | |
1169 | add_rev_cmdline(revs, object, sha1_to_hex(object->sha1), | |
1170 | whence, flags); | |
1171 | commit_list = commit_list->next; | |
1172 | } | |
1173 | } | |
1174 | ||
63049292 JH |
1175 | struct all_refs_cb { |
1176 | int all_flags; | |
71b03b42 | 1177 | int warned_bad_reflog; |
63049292 JH |
1178 | struct rev_info *all_revs; |
1179 | const char *name_for_errormsg; | |
1180 | }; | |
ae563542 | 1181 | |
ff32d342 | 1182 | int ref_excluded(struct string_list *ref_excludes, const char *path) |
e7b432c5 JH |
1183 | { |
1184 | struct string_list_item *item; | |
1185 | ||
ff32d342 | 1186 | if (!ref_excludes) |
e7b432c5 | 1187 | return 0; |
ff32d342 | 1188 | for_each_string_list_item(item, ref_excludes) { |
eb07894f | 1189 | if (!wildmatch(item->string, path, 0, NULL)) |
e7b432c5 JH |
1190 | return 1; |
1191 | } | |
1192 | return 0; | |
1193 | } | |
1194 | ||
8da19775 | 1195 | static int handle_one_ref(const char *path, const unsigned char *sha1, int flag, void *cb_data) |
ae563542 | 1196 | { |
63049292 | 1197 | struct all_refs_cb *cb = cb_data; |
e7b432c5 JH |
1198 | struct object *object; |
1199 | ||
ff32d342 | 1200 | if (ref_excluded(cb->all_revs->ref_excludes, path)) |
e7b432c5 JH |
1201 | return 0; |
1202 | ||
1203 | object = get_reference(cb->all_revs, path, sha1, cb->all_flags); | |
281eee47 | 1204 | add_rev_cmdline(cb->all_revs, object, path, REV_CMD_REF, cb->all_flags); |
26c3177e | 1205 | add_pending_sha1(cb->all_revs, path, sha1, cb->all_flags); |
ae563542 LT |
1206 | return 0; |
1207 | } | |
1208 | ||
d08bae7e IL |
1209 | static void init_all_refs_cb(struct all_refs_cb *cb, struct rev_info *revs, |
1210 | unsigned flags) | |
1211 | { | |
1212 | cb->all_revs = revs; | |
1213 | cb->all_flags = flags; | |
1214 | } | |
1215 | ||
ff32d342 | 1216 | void clear_ref_exclusion(struct string_list **ref_excludes_p) |
e7b432c5 | 1217 | { |
ff32d342 JH |
1218 | if (*ref_excludes_p) { |
1219 | string_list_clear(*ref_excludes_p, 0); | |
1220 | free(*ref_excludes_p); | |
e7b432c5 | 1221 | } |
ff32d342 | 1222 | *ref_excludes_p = NULL; |
e7b432c5 JH |
1223 | } |
1224 | ||
ff32d342 | 1225 | void add_ref_exclusion(struct string_list **ref_excludes_p, const char *exclude) |
e7b432c5 | 1226 | { |
ff32d342 JH |
1227 | if (!*ref_excludes_p) { |
1228 | *ref_excludes_p = xcalloc(1, sizeof(**ref_excludes_p)); | |
1229 | (*ref_excludes_p)->strdup_strings = 1; | |
e7b432c5 | 1230 | } |
ff32d342 | 1231 | string_list_append(*ref_excludes_p, exclude); |
e7b432c5 JH |
1232 | } |
1233 | ||
9ef6aeb0 HV |
1234 | static void handle_refs(const char *submodule, struct rev_info *revs, unsigned flags, |
1235 | int (*for_each)(const char *, each_ref_fn, void *)) | |
ae563542 | 1236 | { |
63049292 | 1237 | struct all_refs_cb cb; |
d08bae7e | 1238 | init_all_refs_cb(&cb, revs, flags); |
9ef6aeb0 | 1239 | for_each(submodule, handle_one_ref, &cb); |
63049292 JH |
1240 | } |
1241 | ||
71b03b42 | 1242 | static void handle_one_reflog_commit(unsigned char *sha1, void *cb_data) |
63049292 JH |
1243 | { |
1244 | struct all_refs_cb *cb = cb_data; | |
71b03b42 SP |
1245 | if (!is_null_sha1(sha1)) { |
1246 | struct object *o = parse_object(sha1); | |
1247 | if (o) { | |
1248 | o->flags |= cb->all_flags; | |
281eee47 | 1249 | /* ??? CMDLINEFLAGS ??? */ |
71b03b42 SP |
1250 | add_pending_object(cb->all_revs, o, ""); |
1251 | } | |
1252 | else if (!cb->warned_bad_reflog) { | |
46efd2d9 | 1253 | warning("reflog of '%s' references pruned commits", |
71b03b42 SP |
1254 | cb->name_for_errormsg); |
1255 | cb->warned_bad_reflog = 1; | |
1256 | } | |
63049292 | 1257 | } |
71b03b42 SP |
1258 | } |
1259 | ||
883d60fa JS |
1260 | static int handle_one_reflog_ent(unsigned char *osha1, unsigned char *nsha1, |
1261 | const char *email, unsigned long timestamp, int tz, | |
1262 | const char *message, void *cb_data) | |
71b03b42 SP |
1263 | { |
1264 | handle_one_reflog_commit(osha1, cb_data); | |
1265 | handle_one_reflog_commit(nsha1, cb_data); | |
63049292 JH |
1266 | return 0; |
1267 | } | |
1268 | ||
1269 | static int handle_one_reflog(const char *path, const unsigned char *sha1, int flag, void *cb_data) | |
1270 | { | |
1271 | struct all_refs_cb *cb = cb_data; | |
71b03b42 | 1272 | cb->warned_bad_reflog = 0; |
63049292 JH |
1273 | cb->name_for_errormsg = path; |
1274 | for_each_reflog_ent(path, handle_one_reflog_ent, cb_data); | |
1275 | return 0; | |
1276 | } | |
1277 | ||
1278 | static void handle_reflog(struct rev_info *revs, unsigned flags) | |
1279 | { | |
1280 | struct all_refs_cb cb; | |
1281 | cb.all_revs = revs; | |
1282 | cb.all_flags = flags; | |
25b51e2c | 1283 | for_each_reflog(handle_one_reflog, &cb); |
ae563542 LT |
1284 | } |
1285 | ||
281eee47 | 1286 | static int add_parents_only(struct rev_info *revs, const char *arg_, int flags) |
ea4a19e1 JH |
1287 | { |
1288 | unsigned char sha1[20]; | |
1289 | struct object *it; | |
1290 | struct commit *commit; | |
1291 | struct commit_list *parents; | |
281eee47 | 1292 | const char *arg = arg_; |
ea4a19e1 JH |
1293 | |
1294 | if (*arg == '^') { | |
7f34a46f | 1295 | flags ^= UNINTERESTING | BOTTOM; |
ea4a19e1 JH |
1296 | arg++; |
1297 | } | |
cd74e473 | 1298 | if (get_sha1_committish(arg, sha1)) |
ea4a19e1 JH |
1299 | return 0; |
1300 | while (1) { | |
1301 | it = get_reference(revs, arg, sha1, 0); | |
cc243c3c JH |
1302 | if (!it && revs->ignore_missing) |
1303 | return 0; | |
1974632c | 1304 | if (it->type != OBJ_TAG) |
ea4a19e1 | 1305 | break; |
9684afd9 MK |
1306 | if (!((struct tag*)it)->tagged) |
1307 | return 0; | |
e702496e | 1308 | hashcpy(sha1, ((struct tag*)it)->tagged->sha1); |
ea4a19e1 | 1309 | } |
1974632c | 1310 | if (it->type != OBJ_COMMIT) |
ea4a19e1 JH |
1311 | return 0; |
1312 | commit = (struct commit *)it; | |
1313 | for (parents = commit->parents; parents; parents = parents->next) { | |
1314 | it = &parents->item->object; | |
1315 | it->flags |= flags; | |
281eee47 | 1316 | add_rev_cmdline(revs, it, arg_, REV_CMD_PARENTS_ONLY, flags); |
ea4a19e1 JH |
1317 | add_pending_object(revs, it, arg); |
1318 | } | |
1319 | return 1; | |
1320 | } | |
1321 | ||
db6296a5 | 1322 | void init_revisions(struct rev_info *revs, const char *prefix) |
8efdc326 FK |
1323 | { |
1324 | memset(revs, 0, sizeof(*revs)); | |
8e8f9987 | 1325 | |
6b9c58f4 | 1326 | revs->abbrev = DEFAULT_ABBREV; |
8e8f9987 | 1327 | revs->ignore_merges = 1; |
9202434c | 1328 | revs->simplify_history = 1; |
8f67f8ae | 1329 | DIFF_OPT_SET(&revs->pruning, RECURSIVE); |
90b19941 | 1330 | DIFF_OPT_SET(&revs->pruning, QUICK); |
cd2bdc53 LT |
1331 | revs->pruning.add_remove = file_add_remove; |
1332 | revs->pruning.change = file_change; | |
08f704f2 | 1333 | revs->sort_order = REV_SORT_IN_GRAPH_ORDER; |
8efdc326 | 1334 | revs->dense = 1; |
db6296a5 | 1335 | revs->prefix = prefix; |
8efdc326 FK |
1336 | revs->max_age = -1; |
1337 | revs->min_age = -1; | |
d5db6c9e | 1338 | revs->skip_count = -1; |
8efdc326 | 1339 | revs->max_count = -1; |
ad5aeede | 1340 | revs->max_parents = -1; |
8efdc326 | 1341 | |
cd2bdc53 LT |
1342 | revs->commit_format = CMIT_FMT_DEFAULT; |
1343 | ||
918d4e1c JH |
1344 | init_grep_defaults(); |
1345 | grep_init(&revs->grep_filter, prefix); | |
0843acfd | 1346 | revs->grep_filter.status_only = 1; |
0843acfd JK |
1347 | revs->grep_filter.regflags = REG_NEWLINE; |
1348 | ||
cd2bdc53 | 1349 | diff_setup(&revs->diffopt); |
c0cb4a06 | 1350 | if (prefix && !revs->diffopt.prefix) { |
cd676a51 JH |
1351 | revs->diffopt.prefix = prefix; |
1352 | revs->diffopt.prefix_length = strlen(prefix); | |
1353 | } | |
3a03cf6b JK |
1354 | |
1355 | revs->notes_opt.use_default_notes = -1; | |
8efdc326 FK |
1356 | } |
1357 | ||
0d2c9d67 RS |
1358 | static void add_pending_commit_list(struct rev_info *revs, |
1359 | struct commit_list *commit_list, | |
1360 | unsigned int flags) | |
1361 | { | |
1362 | while (commit_list) { | |
1363 | struct object *object = &commit_list->item->object; | |
1364 | object->flags |= flags; | |
1365 | add_pending_object(revs, object, sha1_to_hex(object->sha1)); | |
1366 | commit_list = commit_list->next; | |
1367 | } | |
1368 | } | |
1369 | ||
ae3e5e1e JH |
1370 | static void prepare_show_merge(struct rev_info *revs) |
1371 | { | |
1372 | struct commit_list *bases; | |
1373 | struct commit *head, *other; | |
1374 | unsigned char sha1[20]; | |
1375 | const char **prune = NULL; | |
1376 | int i, prune_num = 1; /* counting terminating NULL */ | |
1377 | ||
baf18fc2 | 1378 | if (get_sha1("HEAD", sha1)) |
ae3e5e1e | 1379 | die("--merge without HEAD?"); |
baf18fc2 NTND |
1380 | head = lookup_commit_or_die(sha1, "HEAD"); |
1381 | if (get_sha1("MERGE_HEAD", sha1)) | |
ae3e5e1e | 1382 | die("--merge without MERGE_HEAD?"); |
baf18fc2 | 1383 | other = lookup_commit_or_die(sha1, "MERGE_HEAD"); |
ae3e5e1e JH |
1384 | add_pending_object(revs, &head->object, "HEAD"); |
1385 | add_pending_object(revs, &other->object, "MERGE_HEAD"); | |
1386 | bases = get_merge_bases(head, other, 1); | |
7f34a46f KB |
1387 | add_rev_cmdline_list(revs, bases, REV_CMD_MERGE_BASE, UNINTERESTING | BOTTOM); |
1388 | add_pending_commit_list(revs, bases, UNINTERESTING | BOTTOM); | |
e82447b1 JH |
1389 | free_commit_list(bases); |
1390 | head->object.flags |= SYMMETRIC_LEFT; | |
ae3e5e1e JH |
1391 | |
1392 | if (!active_nr) | |
1393 | read_cache(); | |
1394 | for (i = 0; i < active_nr; i++) { | |
9c5e6c80 | 1395 | const struct cache_entry *ce = active_cache[i]; |
ae3e5e1e JH |
1396 | if (!ce_stage(ce)) |
1397 | continue; | |
429bb40a | 1398 | if (ce_path_match(ce, &revs->prune_data, NULL)) { |
ae3e5e1e | 1399 | prune_num++; |
2756ca43 | 1400 | REALLOC_ARRAY(prune, prune_num); |
ae3e5e1e JH |
1401 | prune[prune_num-2] = ce->name; |
1402 | prune[prune_num-1] = NULL; | |
1403 | } | |
1404 | while ((i+1 < active_nr) && | |
1405 | ce_same_name(ce, active_cache[i+1])) | |
1406 | i++; | |
1407 | } | |
afe069d1 | 1408 | free_pathspec(&revs->prune_data); |
4a2d5ae2 | 1409 | parse_pathspec(&revs->prune_data, PATHSPEC_ALL_MAGIC & ~PATHSPEC_LITERAL, |
c6f1b920 | 1410 | PATHSPEC_PREFER_FULL | PATHSPEC_LITERAL_PATH, "", prune); |
e82447b1 | 1411 | revs->limited = 1; |
ae3e5e1e JH |
1412 | } |
1413 | ||
8e676e8b | 1414 | int handle_revision_arg(const char *arg_, struct rev_info *revs, int flags, unsigned revarg_opt) |
5d6f0935 | 1415 | { |
249c8f4a | 1416 | struct object_context oc; |
5d6f0935 JH |
1417 | char *dotdot; |
1418 | struct object *object; | |
1419 | unsigned char sha1[20]; | |
1420 | int local_flags; | |
281eee47 | 1421 | const char *arg = arg_; |
8e676e8b | 1422 | int cant_be_filename = revarg_opt & REVARG_CANNOT_BE_FILENAME; |
d5f6b1d7 | 1423 | unsigned get_sha1_flags = 0; |
5d6f0935 | 1424 | |
7f34a46f KB |
1425 | flags = flags & UNINTERESTING ? flags | BOTTOM : flags & ~BOTTOM; |
1426 | ||
5d6f0935 JH |
1427 | dotdot = strstr(arg, ".."); |
1428 | if (dotdot) { | |
1429 | unsigned char from_sha1[20]; | |
1430 | const char *next = dotdot + 2; | |
1431 | const char *this = arg; | |
1432 | int symmetric = *next == '.'; | |
7f34a46f | 1433 | unsigned int flags_exclude = flags ^ (UNINTERESTING | BOTTOM); |
003c84f6 | 1434 | static const char head_by_default[] = "HEAD"; |
281eee47 | 1435 | unsigned int a_flags; |
5d6f0935 JH |
1436 | |
1437 | *dotdot = 0; | |
1438 | next += symmetric; | |
1439 | ||
1440 | if (!*next) | |
003c84f6 | 1441 | next = head_by_default; |
5d6f0935 | 1442 | if (dotdot == arg) |
003c84f6 JH |
1443 | this = head_by_default; |
1444 | if (this == head_by_default && next == head_by_default && | |
1445 | !symmetric) { | |
1446 | /* | |
1447 | * Just ".."? That is not a range but the | |
1448 | * pathspec for the parent directory. | |
1449 | */ | |
1450 | if (!cant_be_filename) { | |
1451 | *dotdot = '.'; | |
1452 | return -1; | |
1453 | } | |
1454 | } | |
cd74e473 JH |
1455 | if (!get_sha1_committish(this, from_sha1) && |
1456 | !get_sha1_committish(next, sha1)) { | |
895c5ba3 | 1457 | struct object *a_obj, *b_obj; |
5d6f0935 JH |
1458 | |
1459 | if (!cant_be_filename) { | |
1460 | *dotdot = '.'; | |
1461 | verify_non_filename(revs->prefix, arg); | |
1462 | } | |
1463 | ||
895c5ba3 JH |
1464 | a_obj = parse_object(from_sha1); |
1465 | b_obj = parse_object(sha1); | |
1466 | if (!a_obj || !b_obj) { | |
1467 | missing: | |
1468 | if (revs->ignore_missing) | |
1469 | return 0; | |
1470 | die(symmetric | |
1471 | ? "Invalid symmetric difference expression %s" | |
1472 | : "Invalid revision range %s", arg); | |
1473 | } | |
1474 | ||
1475 | if (!symmetric) { | |
1476 | /* just A..B */ | |
1477 | a_flags = flags_exclude; | |
1478 | } else { | |
1479 | /* A...B -- find merge bases between the two */ | |
1480 | struct commit *a, *b; | |
1481 | struct commit_list *exclude; | |
1482 | ||
1483 | a = (a_obj->type == OBJ_COMMIT | |
1484 | ? (struct commit *)a_obj | |
1485 | : lookup_commit_reference(a_obj->sha1)); | |
1486 | b = (b_obj->type == OBJ_COMMIT | |
1487 | ? (struct commit *)b_obj | |
1488 | : lookup_commit_reference(b_obj->sha1)); | |
1489 | if (!a || !b) | |
1490 | goto missing; | |
5d6f0935 | 1491 | exclude = get_merge_bases(a, b, 1); |
a765499a KB |
1492 | add_rev_cmdline_list(revs, exclude, |
1493 | REV_CMD_MERGE_BASE, | |
1494 | flags_exclude); | |
5d6f0935 JH |
1495 | add_pending_commit_list(revs, exclude, |
1496 | flags_exclude); | |
1497 | free_commit_list(exclude); | |
895c5ba3 | 1498 | |
281eee47 | 1499 | a_flags = flags | SYMMETRIC_LEFT; |
895c5ba3 JH |
1500 | } |
1501 | ||
1502 | a_obj->flags |= a_flags; | |
1503 | b_obj->flags |= flags; | |
1504 | add_rev_cmdline(revs, a_obj, this, | |
281eee47 | 1505 | REV_CMD_LEFT, a_flags); |
895c5ba3 | 1506 | add_rev_cmdline(revs, b_obj, next, |
281eee47 | 1507 | REV_CMD_RIGHT, flags); |
895c5ba3 JH |
1508 | add_pending_object(revs, a_obj, this); |
1509 | add_pending_object(revs, b_obj, next); | |
5d6f0935 JH |
1510 | return 0; |
1511 | } | |
1512 | *dotdot = '.'; | |
1513 | } | |
1514 | dotdot = strstr(arg, "^@"); | |
1515 | if (dotdot && !dotdot[2]) { | |
1516 | *dotdot = 0; | |
1517 | if (add_parents_only(revs, arg, flags)) | |
1518 | return 0; | |
1519 | *dotdot = '^'; | |
1520 | } | |
62476c8e JH |
1521 | dotdot = strstr(arg, "^!"); |
1522 | if (dotdot && !dotdot[2]) { | |
1523 | *dotdot = 0; | |
7f34a46f | 1524 | if (!add_parents_only(revs, arg, flags ^ (UNINTERESTING | BOTTOM))) |
62476c8e JH |
1525 | *dotdot = '^'; |
1526 | } | |
1527 | ||
5d6f0935 JH |
1528 | local_flags = 0; |
1529 | if (*arg == '^') { | |
7f34a46f | 1530 | local_flags = UNINTERESTING | BOTTOM; |
5d6f0935 JH |
1531 | arg++; |
1532 | } | |
d5f6b1d7 JH |
1533 | |
1534 | if (revarg_opt & REVARG_COMMITTISH) | |
1535 | get_sha1_flags = GET_SHA1_COMMITTISH; | |
1536 | ||
1537 | if (get_sha1_with_context(arg, get_sha1_flags, sha1, &oc)) | |
cc243c3c | 1538 | return revs->ignore_missing ? 0 : -1; |
5d6f0935 JH |
1539 | if (!cant_be_filename) |
1540 | verify_non_filename(revs->prefix, arg); | |
1541 | object = get_reference(revs, arg, sha1, flags ^ local_flags); | |
281eee47 | 1542 | add_rev_cmdline(revs, object, arg_, REV_CMD_REV, flags ^ local_flags); |
249c8f4a | 1543 | add_pending_object_with_mode(revs, object, arg, oc.mode); |
5d6f0935 JH |
1544 | return 0; |
1545 | } | |
1546 | ||
4da5af31 JH |
1547 | struct cmdline_pathspec { |
1548 | int alloc; | |
1549 | int nr; | |
1550 | const char **path; | |
1551 | }; | |
1fc561d1 | 1552 | |
4da5af31 JH |
1553 | static void append_prune_data(struct cmdline_pathspec *prune, const char **av) |
1554 | { | |
1555 | while (*av) { | |
9e57ac55 | 1556 | ALLOC_GROW(prune->path, prune->nr + 1, prune->alloc); |
4da5af31 JH |
1557 | prune->path[prune->nr++] = *(av++); |
1558 | } | |
1559 | } | |
60da8b15 | 1560 | |
4da5af31 JH |
1561 | static void read_pathspec_from_stdin(struct rev_info *revs, struct strbuf *sb, |
1562 | struct cmdline_pathspec *prune) | |
1563 | { | |
60da8b15 JH |
1564 | while (strbuf_getwholeline(sb, stdin, '\n') != EOF) { |
1565 | int len = sb->len; | |
1566 | if (len && sb->buf[len - 1] == '\n') | |
1567 | sb->buf[--len] = '\0'; | |
9e57ac55 | 1568 | ALLOC_GROW(prune->path, prune->nr + 1, prune->alloc); |
4da5af31 | 1569 | prune->path[prune->nr++] = xstrdup(sb->buf); |
60da8b15 | 1570 | } |
60da8b15 JH |
1571 | } |
1572 | ||
4da5af31 JH |
1573 | static void read_revisions_from_stdin(struct rev_info *revs, |
1574 | struct cmdline_pathspec *prune) | |
1fc561d1 | 1575 | { |
63d564b3 | 1576 | struct strbuf sb; |
60da8b15 | 1577 | int seen_dashdash = 0; |
4c30d504 JK |
1578 | int save_warning; |
1579 | ||
1580 | save_warning = warn_on_object_refname_ambiguity; | |
1581 | warn_on_object_refname_ambiguity = 0; | |
1fc561d1 | 1582 | |
63d564b3 JH |
1583 | strbuf_init(&sb, 1000); |
1584 | while (strbuf_getwholeline(&sb, stdin, '\n') != EOF) { | |
1585 | int len = sb.len; | |
1586 | if (len && sb.buf[len - 1] == '\n') | |
1587 | sb.buf[--len] = '\0'; | |
1fc561d1 AB |
1588 | if (!len) |
1589 | break; | |
60da8b15 JH |
1590 | if (sb.buf[0] == '-') { |
1591 | if (len == 2 && sb.buf[1] == '-') { | |
1592 | seen_dashdash = 1; | |
1593 | break; | |
1594 | } | |
1fc561d1 | 1595 | die("options not supported in --stdin mode"); |
60da8b15 | 1596 | } |
31faeb20 | 1597 | if (handle_revision_arg(sb.buf, revs, 0, |
70d26c6e | 1598 | REVARG_CANNOT_BE_FILENAME)) |
63d564b3 | 1599 | die("bad revision '%s'", sb.buf); |
1fc561d1 | 1600 | } |
60da8b15 JH |
1601 | if (seen_dashdash) |
1602 | read_pathspec_from_stdin(revs, &sb, prune); | |
4c30d504 | 1603 | |
63d564b3 | 1604 | strbuf_release(&sb); |
4c30d504 | 1605 | warn_on_object_refname_ambiguity = save_warning; |
1fc561d1 AB |
1606 | } |
1607 | ||
2d10c555 | 1608 | static void add_grep(struct rev_info *revs, const char *ptn, enum grep_pat_token what) |
bd95fcd3 | 1609 | { |
0843acfd | 1610 | append_grep_pattern(&revs->grep_filter, ptn, "command line", 0, what); |
2d10c555 JH |
1611 | } |
1612 | ||
a4d7d2c6 | 1613 | static void add_header_grep(struct rev_info *revs, enum grep_header_field field, const char *pattern) |
2d10c555 | 1614 | { |
a4d7d2c6 | 1615 | append_header_grep_pattern(&revs->grep_filter, field, pattern); |
bd95fcd3 JH |
1616 | } |
1617 | ||
1618 | static void add_message_grep(struct rev_info *revs, const char *pattern) | |
1619 | { | |
2d10c555 | 1620 | add_grep(revs, pattern, GREP_PATTERN_BODY); |
bd95fcd3 JH |
1621 | } |
1622 | ||
6b61ec05 PH |
1623 | static int handle_revision_opt(struct rev_info *revs, int argc, const char **argv, |
1624 | int *unkc, const char **unkv) | |
02e54220 PH |
1625 | { |
1626 | const char *arg = argv[0]; | |
7d7b86f7 MM |
1627 | const char *optarg; |
1628 | int argcount; | |
02e54220 PH |
1629 | |
1630 | /* pseudo revision arguments */ | |
1631 | if (!strcmp(arg, "--all") || !strcmp(arg, "--branches") || | |
1632 | !strcmp(arg, "--tags") || !strcmp(arg, "--remotes") || | |
1633 | !strcmp(arg, "--reflog") || !strcmp(arg, "--not") || | |
ad3f9a71 | 1634 | !strcmp(arg, "--no-walk") || !strcmp(arg, "--do-walk") || |
59556548 | 1635 | !strcmp(arg, "--bisect") || starts_with(arg, "--glob=") || |
07768e03 | 1636 | starts_with(arg, "--exclude=") || |
59556548 CC |
1637 | starts_with(arg, "--branches=") || starts_with(arg, "--tags=") || |
1638 | starts_with(arg, "--remotes=") || starts_with(arg, "--no-walk=")) | |
02e54220 PH |
1639 | { |
1640 | unkv[(*unkc)++] = arg; | |
0fe8c138 | 1641 | return 1; |
02e54220 PH |
1642 | } |
1643 | ||
7d7b86f7 MM |
1644 | if ((argcount = parse_long_opt("max-count", argv, &optarg))) { |
1645 | revs->max_count = atoi(optarg); | |
5853caec | 1646 | revs->no_walk = 0; |
7d7b86f7 MM |
1647 | return argcount; |
1648 | } else if ((argcount = parse_long_opt("skip", argv, &optarg))) { | |
1649 | revs->skip_count = atoi(optarg); | |
1650 | return argcount; | |
02e54220 | 1651 | } else if ((*arg == '-') && isdigit(arg[1])) { |
e3fa568c JH |
1652 | /* accept -<digit>, like traditional "head" */ |
1653 | if (strtol_i(arg + 1, 10, &revs->max_count) < 0 || | |
1654 | revs->max_count < 0) | |
1655 | die("'%s': not a non-negative integer", arg + 1); | |
5853caec | 1656 | revs->no_walk = 0; |
02e54220 PH |
1657 | } else if (!strcmp(arg, "-n")) { |
1658 | if (argc <= 1) | |
1659 | return error("-n requires an argument"); | |
1660 | revs->max_count = atoi(argv[1]); | |
5853caec | 1661 | revs->no_walk = 0; |
02e54220 | 1662 | return 2; |
59556548 | 1663 | } else if (starts_with(arg, "-n")) { |
02e54220 | 1664 | revs->max_count = atoi(arg + 2); |
5853caec | 1665 | revs->no_walk = 0; |
7d7b86f7 MM |
1666 | } else if ((argcount = parse_long_opt("max-age", argv, &optarg))) { |
1667 | revs->max_age = atoi(optarg); | |
1668 | return argcount; | |
1669 | } else if ((argcount = parse_long_opt("since", argv, &optarg))) { | |
1670 | revs->max_age = approxidate(optarg); | |
1671 | return argcount; | |
1672 | } else if ((argcount = parse_long_opt("after", argv, &optarg))) { | |
1673 | revs->max_age = approxidate(optarg); | |
1674 | return argcount; | |
1675 | } else if ((argcount = parse_long_opt("min-age", argv, &optarg))) { | |
1676 | revs->min_age = atoi(optarg); | |
1677 | return argcount; | |
1678 | } else if ((argcount = parse_long_opt("before", argv, &optarg))) { | |
1679 | revs->min_age = approxidate(optarg); | |
1680 | return argcount; | |
1681 | } else if ((argcount = parse_long_opt("until", argv, &optarg))) { | |
1682 | revs->min_age = approxidate(optarg); | |
1683 | return argcount; | |
02e54220 PH |
1684 | } else if (!strcmp(arg, "--first-parent")) { |
1685 | revs->first_parent_only = 1; | |
ebdc94f3 JH |
1686 | } else if (!strcmp(arg, "--ancestry-path")) { |
1687 | revs->ancestry_path = 1; | |
cb7529e1 | 1688 | revs->simplify_history = 0; |
ebdc94f3 | 1689 | revs->limited = 1; |
02e54220 PH |
1690 | } else if (!strcmp(arg, "-g") || !strcmp(arg, "--walk-reflogs")) { |
1691 | init_reflog_walk(&revs->reflog_info); | |
1692 | } else if (!strcmp(arg, "--default")) { | |
1693 | if (argc <= 1) | |
1694 | return error("bad --default argument"); | |
1695 | revs->def = argv[1]; | |
1696 | return 2; | |
1697 | } else if (!strcmp(arg, "--merge")) { | |
1698 | revs->show_merge = 1; | |
1699 | } else if (!strcmp(arg, "--topo-order")) { | |
08f704f2 | 1700 | revs->sort_order = REV_SORT_IN_GRAPH_ORDER; |
02e54220 | 1701 | revs->topo_order = 1; |
6546b593 JH |
1702 | } else if (!strcmp(arg, "--simplify-merges")) { |
1703 | revs->simplify_merges = 1; | |
a52f0071 | 1704 | revs->topo_order = 1; |
6546b593 JH |
1705 | revs->rewrite_parents = 1; |
1706 | revs->simplify_history = 0; | |
1707 | revs->limited = 1; | |
78892e32 LT |
1708 | } else if (!strcmp(arg, "--simplify-by-decoration")) { |
1709 | revs->simplify_merges = 1; | |
a52f0071 | 1710 | revs->topo_order = 1; |
78892e32 LT |
1711 | revs->rewrite_parents = 1; |
1712 | revs->simplify_history = 0; | |
1713 | revs->simplify_by_decoration = 1; | |
1714 | revs->limited = 1; | |
1715 | revs->prune = 1; | |
33e7018c | 1716 | load_ref_decorations(DECORATE_SHORT_REFS); |
02e54220 | 1717 | } else if (!strcmp(arg, "--date-order")) { |
08f704f2 | 1718 | revs->sort_order = REV_SORT_BY_COMMIT_DATE; |
02e54220 | 1719 | revs->topo_order = 1; |
81c6b38b JH |
1720 | } else if (!strcmp(arg, "--author-date-order")) { |
1721 | revs->sort_order = REV_SORT_BY_AUTHOR_DATE; | |
02e54220 | 1722 | revs->topo_order = 1; |
59556548 | 1723 | } else if (starts_with(arg, "--early-output")) { |
02e54220 PH |
1724 | int count = 100; |
1725 | switch (arg[14]) { | |
1726 | case '=': | |
1727 | count = atoi(arg+15); | |
1728 | /* Fallthrough */ | |
1729 | case 0: | |
1730 | revs->topo_order = 1; | |
1731 | revs->early_output = count; | |
1732 | } | |
1733 | } else if (!strcmp(arg, "--parents")) { | |
1734 | revs->rewrite_parents = 1; | |
1735 | revs->print_parents = 1; | |
1736 | } else if (!strcmp(arg, "--dense")) { | |
1737 | revs->dense = 1; | |
1738 | } else if (!strcmp(arg, "--sparse")) { | |
1739 | revs->dense = 0; | |
1740 | } else if (!strcmp(arg, "--show-all")) { | |
1741 | revs->show_all = 1; | |
1742 | } else if (!strcmp(arg, "--remove-empty")) { | |
1743 | revs->remove_empty_trees = 1; | |
b8e8db28 | 1744 | } else if (!strcmp(arg, "--merges")) { |
ad5aeede | 1745 | revs->min_parents = 2; |
02e54220 | 1746 | } else if (!strcmp(arg, "--no-merges")) { |
ad5aeede | 1747 | revs->max_parents = 1; |
59556548 | 1748 | } else if (starts_with(arg, "--min-parents=")) { |
ad5aeede | 1749 | revs->min_parents = atoi(arg+14); |
59556548 | 1750 | } else if (starts_with(arg, "--no-min-parents")) { |
ad5aeede | 1751 | revs->min_parents = 0; |
59556548 | 1752 | } else if (starts_with(arg, "--max-parents=")) { |
ad5aeede | 1753 | revs->max_parents = atoi(arg+14); |
59556548 | 1754 | } else if (starts_with(arg, "--no-max-parents")) { |
ad5aeede | 1755 | revs->max_parents = -1; |
02e54220 PH |
1756 | } else if (!strcmp(arg, "--boundary")) { |
1757 | revs->boundary = 1; | |
1758 | } else if (!strcmp(arg, "--left-right")) { | |
1759 | revs->left_right = 1; | |
60adf7d7 | 1760 | } else if (!strcmp(arg, "--left-only")) { |
24852d91 | 1761 | if (revs->right_only) |
94f605ec MG |
1762 | die("--left-only is incompatible with --right-only" |
1763 | " or --cherry"); | |
60adf7d7 MG |
1764 | revs->left_only = 1; |
1765 | } else if (!strcmp(arg, "--right-only")) { | |
24852d91 JH |
1766 | if (revs->left_only) |
1767 | die("--right-only is incompatible with --left-only"); | |
60adf7d7 | 1768 | revs->right_only = 1; |
94f605ec MG |
1769 | } else if (!strcmp(arg, "--cherry")) { |
1770 | if (revs->left_only) | |
1771 | die("--cherry is incompatible with --left-only"); | |
1772 | revs->cherry_mark = 1; | |
1773 | revs->right_only = 1; | |
ad5aeede | 1774 | revs->max_parents = 1; |
94f605ec | 1775 | revs->limited = 1; |
f69c5018 TR |
1776 | } else if (!strcmp(arg, "--count")) { |
1777 | revs->count = 1; | |
adbbb31e MG |
1778 | } else if (!strcmp(arg, "--cherry-mark")) { |
1779 | if (revs->cherry_pick) | |
1780 | die("--cherry-mark is incompatible with --cherry-pick"); | |
1781 | revs->cherry_mark = 1; | |
1782 | revs->limited = 1; /* needs limit_list() */ | |
02e54220 | 1783 | } else if (!strcmp(arg, "--cherry-pick")) { |
adbbb31e MG |
1784 | if (revs->cherry_mark) |
1785 | die("--cherry-pick is incompatible with --cherry-mark"); | |
02e54220 PH |
1786 | revs->cherry_pick = 1; |
1787 | revs->limited = 1; | |
1788 | } else if (!strcmp(arg, "--objects")) { | |
1789 | revs->tag_objects = 1; | |
1790 | revs->tree_objects = 1; | |
1791 | revs->blob_objects = 1; | |
1792 | } else if (!strcmp(arg, "--objects-edge")) { | |
1793 | revs->tag_objects = 1; | |
1794 | revs->tree_objects = 1; | |
1795 | revs->blob_objects = 1; | |
1796 | revs->edge_hint = 1; | |
5a48d240 JH |
1797 | } else if (!strcmp(arg, "--verify-objects")) { |
1798 | revs->tag_objects = 1; | |
1799 | revs->tree_objects = 1; | |
1800 | revs->blob_objects = 1; | |
1801 | revs->verify_objects = 1; | |
02e54220 PH |
1802 | } else if (!strcmp(arg, "--unpacked")) { |
1803 | revs->unpacked = 1; | |
59556548 | 1804 | } else if (starts_with(arg, "--unpacked=")) { |
03a9683d | 1805 | die("--unpacked=<packfile> no longer supported."); |
02e54220 PH |
1806 | } else if (!strcmp(arg, "-r")) { |
1807 | revs->diff = 1; | |
1808 | DIFF_OPT_SET(&revs->diffopt, RECURSIVE); | |
1809 | } else if (!strcmp(arg, "-t")) { | |
1810 | revs->diff = 1; | |
1811 | DIFF_OPT_SET(&revs->diffopt, RECURSIVE); | |
1812 | DIFF_OPT_SET(&revs->diffopt, TREE_IN_RECURSIVE); | |
1813 | } else if (!strcmp(arg, "-m")) { | |
1814 | revs->ignore_merges = 0; | |
1815 | } else if (!strcmp(arg, "-c")) { | |
1816 | revs->diff = 1; | |
1817 | revs->dense_combined_merges = 0; | |
1818 | revs->combine_merges = 1; | |
1819 | } else if (!strcmp(arg, "--cc")) { | |
1820 | revs->diff = 1; | |
1821 | revs->dense_combined_merges = 1; | |
1822 | revs->combine_merges = 1; | |
1823 | } else if (!strcmp(arg, "-v")) { | |
1824 | revs->verbose_header = 1; | |
1825 | } else if (!strcmp(arg, "--pretty")) { | |
1826 | revs->verbose_header = 1; | |
66b2ed09 | 1827 | revs->pretty_given = 1; |
ae18165f | 1828 | get_commit_format(NULL, revs); |
59556548 | 1829 | } else if (starts_with(arg, "--pretty=") || starts_with(arg, "--format=")) { |
7d7b86f7 MM |
1830 | /* |
1831 | * Detached form ("--pretty X" as opposed to "--pretty=X") | |
1832 | * not allowed, since the argument is optional. | |
1833 | */ | |
02e54220 | 1834 | revs->verbose_header = 1; |
66b2ed09 | 1835 | revs->pretty_given = 1; |
02e54220 | 1836 | get_commit_format(arg+9, revs); |
7249e912 | 1837 | } else if (!strcmp(arg, "--show-notes") || !strcmp(arg, "--notes")) { |
66b2ed09 JH |
1838 | revs->show_notes = 1; |
1839 | revs->show_notes_given = 1; | |
3a03cf6b | 1840 | revs->notes_opt.use_default_notes = 1; |
0c37f1fc JH |
1841 | } else if (!strcmp(arg, "--show-signature")) { |
1842 | revs->show_signature = 1; | |
1b32dece NTND |
1843 | } else if (!strcmp(arg, "--show-linear-break") || |
1844 | starts_with(arg, "--show-linear-break=")) { | |
1845 | if (starts_with(arg, "--show-linear-break=")) | |
1846 | revs->break_bar = xstrdup(arg + 20); | |
1847 | else | |
1848 | revs->break_bar = " .........."; | |
1849 | revs->track_linear = 1; | |
1850 | revs->track_first_time = 1; | |
59556548 CC |
1851 | } else if (starts_with(arg, "--show-notes=") || |
1852 | starts_with(arg, "--notes=")) { | |
894a9d33 TR |
1853 | struct strbuf buf = STRBUF_INIT; |
1854 | revs->show_notes = 1; | |
1855 | revs->show_notes_given = 1; | |
59556548 | 1856 | if (starts_with(arg, "--show-notes")) { |
7249e912 JK |
1857 | if (revs->notes_opt.use_default_notes < 0) |
1858 | revs->notes_opt.use_default_notes = 1; | |
1859 | strbuf_addstr(&buf, arg+13); | |
1860 | } | |
1861 | else | |
1862 | strbuf_addstr(&buf, arg+8); | |
c063f0a9 | 1863 | expand_notes_ref(&buf); |
304cc11c | 1864 | string_list_append(&revs->notes_opt.extra_notes_refs, |
1d2f80fa | 1865 | strbuf_detach(&buf, NULL)); |
66b2ed09 JH |
1866 | } else if (!strcmp(arg, "--no-notes")) { |
1867 | revs->show_notes = 0; | |
1868 | revs->show_notes_given = 1; | |
92e0d425 JK |
1869 | revs->notes_opt.use_default_notes = -1; |
1870 | /* we have been strdup'ing ourselves, so trick | |
1871 | * string_list into free()ing strings */ | |
1872 | revs->notes_opt.extra_notes_refs.strdup_strings = 1; | |
1873 | string_list_clear(&revs->notes_opt.extra_notes_refs, 0); | |
1874 | revs->notes_opt.extra_notes_refs.strdup_strings = 0; | |
894a9d33 TR |
1875 | } else if (!strcmp(arg, "--standard-notes")) { |
1876 | revs->show_notes_given = 1; | |
3a03cf6b | 1877 | revs->notes_opt.use_default_notes = 1; |
894a9d33 | 1878 | } else if (!strcmp(arg, "--no-standard-notes")) { |
3a03cf6b | 1879 | revs->notes_opt.use_default_notes = 0; |
de84accc NS |
1880 | } else if (!strcmp(arg, "--oneline")) { |
1881 | revs->verbose_header = 1; | |
1882 | get_commit_format("oneline", revs); | |
7dccadf3 | 1883 | revs->pretty_given = 1; |
de84accc | 1884 | revs->abbrev_commit = 1; |
02e54220 PH |
1885 | } else if (!strcmp(arg, "--graph")) { |
1886 | revs->topo_order = 1; | |
1887 | revs->rewrite_parents = 1; | |
1888 | revs->graph = graph_init(revs); | |
1889 | } else if (!strcmp(arg, "--root")) { | |
1890 | revs->show_root_diff = 1; | |
1891 | } else if (!strcmp(arg, "--no-commit-id")) { | |
1892 | revs->no_commit_id = 1; | |
1893 | } else if (!strcmp(arg, "--always")) { | |
1894 | revs->always_show_header = 1; | |
1895 | } else if (!strcmp(arg, "--no-abbrev")) { | |
1896 | revs->abbrev = 0; | |
1897 | } else if (!strcmp(arg, "--abbrev")) { | |
1898 | revs->abbrev = DEFAULT_ABBREV; | |
59556548 | 1899 | } else if (starts_with(arg, "--abbrev=")) { |
02e54220 PH |
1900 | revs->abbrev = strtoul(arg + 9, NULL, 10); |
1901 | if (revs->abbrev < MINIMUM_ABBREV) | |
1902 | revs->abbrev = MINIMUM_ABBREV; | |
1903 | else if (revs->abbrev > 40) | |
1904 | revs->abbrev = 40; | |
1905 | } else if (!strcmp(arg, "--abbrev-commit")) { | |
1906 | revs->abbrev_commit = 1; | |
0c47695a JS |
1907 | revs->abbrev_commit_given = 1; |
1908 | } else if (!strcmp(arg, "--no-abbrev-commit")) { | |
1909 | revs->abbrev_commit = 0; | |
02e54220 PH |
1910 | } else if (!strcmp(arg, "--full-diff")) { |
1911 | revs->diff = 1; | |
1912 | revs->full_diff = 1; | |
1913 | } else if (!strcmp(arg, "--full-history")) { | |
1914 | revs->simplify_history = 0; | |
1915 | } else if (!strcmp(arg, "--relative-date")) { | |
1916 | revs->date_mode = DATE_RELATIVE; | |
f4ea32f0 | 1917 | revs->date_mode_explicit = 1; |
7d7b86f7 MM |
1918 | } else if ((argcount = parse_long_opt("date", argv, &optarg))) { |
1919 | revs->date_mode = parse_date_format(optarg); | |
f4ea32f0 | 1920 | revs->date_mode_explicit = 1; |
7d7b86f7 | 1921 | return argcount; |
02e54220 PH |
1922 | } else if (!strcmp(arg, "--log-size")) { |
1923 | revs->show_log_size = 1; | |
1924 | } | |
1925 | /* | |
1926 | * Grepping the commit log | |
1927 | */ | |
7d7b86f7 MM |
1928 | else if ((argcount = parse_long_opt("author", argv, &optarg))) { |
1929 | add_header_grep(revs, GREP_HEADER_AUTHOR, optarg); | |
1930 | return argcount; | |
1931 | } else if ((argcount = parse_long_opt("committer", argv, &optarg))) { | |
1932 | add_header_grep(revs, GREP_HEADER_COMMITTER, optarg); | |
1933 | return argcount; | |
72fd13f7 NTND |
1934 | } else if ((argcount = parse_long_opt("grep-reflog", argv, &optarg))) { |
1935 | add_header_grep(revs, GREP_HEADER_REFLOG, optarg); | |
1936 | return argcount; | |
7d7b86f7 MM |
1937 | } else if ((argcount = parse_long_opt("grep", argv, &optarg))) { |
1938 | add_message_grep(revs, optarg); | |
1939 | return argcount; | |
17bf35a3 JH |
1940 | } else if (!strcmp(arg, "--grep-debug")) { |
1941 | revs->grep_filter.debug = 1; | |
727b6fc3 JH |
1942 | } else if (!strcmp(arg, "--basic-regexp")) { |
1943 | grep_set_pattern_type_option(GREP_PATTERN_TYPE_BRE, &revs->grep_filter); | |
02e54220 | 1944 | } else if (!strcmp(arg, "--extended-regexp") || !strcmp(arg, "-E")) { |
34a4ae55 | 1945 | grep_set_pattern_type_option(GREP_PATTERN_TYPE_ERE, &revs->grep_filter); |
02e54220 | 1946 | } else if (!strcmp(arg, "--regexp-ignore-case") || !strcmp(arg, "-i")) { |
0843acfd | 1947 | revs->grep_filter.regflags |= REG_ICASE; |
accccde4 | 1948 | DIFF_OPT_SET(&revs->diffopt, PICKAXE_IGNORE_CASE); |
02e54220 | 1949 | } else if (!strcmp(arg, "--fixed-strings") || !strcmp(arg, "-F")) { |
34a4ae55 | 1950 | grep_set_pattern_type_option(GREP_PATTERN_TYPE_FIXED, &revs->grep_filter); |
727b6fc3 JH |
1951 | } else if (!strcmp(arg, "--perl-regexp")) { |
1952 | grep_set_pattern_type_option(GREP_PATTERN_TYPE_PCRE, &revs->grep_filter); | |
02e54220 | 1953 | } else if (!strcmp(arg, "--all-match")) { |
0843acfd | 1954 | revs->grep_filter.all_match = 1; |
7d7b86f7 MM |
1955 | } else if ((argcount = parse_long_opt("encoding", argv, &optarg))) { |
1956 | if (strcmp(optarg, "none")) | |
1957 | git_log_output_encoding = xstrdup(optarg); | |
02e54220 PH |
1958 | else |
1959 | git_log_output_encoding = ""; | |
7d7b86f7 | 1960 | return argcount; |
02e54220 PH |
1961 | } else if (!strcmp(arg, "--reverse")) { |
1962 | revs->reverse ^= 1; | |
1963 | } else if (!strcmp(arg, "--children")) { | |
1964 | revs->children.name = "children"; | |
1965 | revs->limited = 1; | |
cc243c3c JH |
1966 | } else if (!strcmp(arg, "--ignore-missing")) { |
1967 | revs->ignore_missing = 1; | |
02e54220 PH |
1968 | } else { |
1969 | int opts = diff_opt_parse(&revs->diffopt, argv, argc); | |
1970 | if (!opts) | |
1971 | unkv[(*unkc)++] = arg; | |
1972 | return opts; | |
1973 | } | |
1b32dece NTND |
1974 | if (revs->graph && revs->track_linear) |
1975 | die("--show-linear-break and --graph are incompatible"); | |
02e54220 PH |
1976 | |
1977 | return 1; | |
1978 | } | |
1979 | ||
6b61ec05 PH |
1980 | void parse_revision_opt(struct rev_info *revs, struct parse_opt_ctx_t *ctx, |
1981 | const struct option *options, | |
1982 | const char * const usagestr[]) | |
1983 | { | |
1984 | int n = handle_revision_opt(revs, ctx->argc, ctx->argv, | |
1985 | &ctx->cpidx, ctx->out); | |
1986 | if (n <= 0) { | |
1987 | error("unknown option `%s'", ctx->argv[0]); | |
1988 | usage_with_options(usagestr, options); | |
1989 | } | |
1990 | ctx->argv += n; | |
1991 | ctx->argc -= n; | |
1992 | } | |
1993 | ||
9ef6aeb0 | 1994 | static int for_each_bad_bisect_ref(const char *submodule, each_ref_fn fn, void *cb_data) |
ad3f9a71 | 1995 | { |
9ef6aeb0 | 1996 | return for_each_ref_in_submodule(submodule, "refs/bisect/bad", fn, cb_data); |
ad3f9a71 LT |
1997 | } |
1998 | ||
9ef6aeb0 | 1999 | static int for_each_good_bisect_ref(const char *submodule, each_ref_fn fn, void *cb_data) |
ad3f9a71 | 2000 | { |
9ef6aeb0 | 2001 | return for_each_ref_in_submodule(submodule, "refs/bisect/good", fn, cb_data); |
ad3f9a71 LT |
2002 | } |
2003 | ||
f6aca0dc JN |
2004 | static int handle_revision_pseudo_opt(const char *submodule, |
2005 | struct rev_info *revs, | |
2006 | int argc, const char **argv, int *flags) | |
2007 | { | |
2008 | const char *arg = argv[0]; | |
2009 | const char *optarg; | |
2010 | int argcount; | |
2011 | ||
0fc63ec4 JN |
2012 | /* |
2013 | * NOTE! | |
2014 | * | |
2015 | * Commands like "git shortlog" will not accept the options below | |
2016 | * unless parse_revision_opt queues them (as opposed to erroring | |
2017 | * out). | |
2018 | * | |
2019 | * When implementing your new pseudo-option, remember to | |
2020 | * register it in the list at the top of handle_revision_opt. | |
2021 | */ | |
f6aca0dc JN |
2022 | if (!strcmp(arg, "--all")) { |
2023 | handle_refs(submodule, revs, *flags, for_each_ref_submodule); | |
2024 | handle_refs(submodule, revs, *flags, head_ref_submodule); | |
ff32d342 | 2025 | clear_ref_exclusion(&revs->ref_excludes); |
f6aca0dc JN |
2026 | } else if (!strcmp(arg, "--branches")) { |
2027 | handle_refs(submodule, revs, *flags, for_each_branch_ref_submodule); | |
ff32d342 | 2028 | clear_ref_exclusion(&revs->ref_excludes); |
f6aca0dc JN |
2029 | } else if (!strcmp(arg, "--bisect")) { |
2030 | handle_refs(submodule, revs, *flags, for_each_bad_bisect_ref); | |
7f34a46f | 2031 | handle_refs(submodule, revs, *flags ^ (UNINTERESTING | BOTTOM), for_each_good_bisect_ref); |
f6aca0dc JN |
2032 | revs->bisect = 1; |
2033 | } else if (!strcmp(arg, "--tags")) { | |
2034 | handle_refs(submodule, revs, *flags, for_each_tag_ref_submodule); | |
ff32d342 | 2035 | clear_ref_exclusion(&revs->ref_excludes); |
f6aca0dc JN |
2036 | } else if (!strcmp(arg, "--remotes")) { |
2037 | handle_refs(submodule, revs, *flags, for_each_remote_ref_submodule); | |
ff32d342 | 2038 | clear_ref_exclusion(&revs->ref_excludes); |
f6aca0dc JN |
2039 | } else if ((argcount = parse_long_opt("glob", argv, &optarg))) { |
2040 | struct all_refs_cb cb; | |
2041 | init_all_refs_cb(&cb, revs, *flags); | |
2042 | for_each_glob_ref(handle_one_ref, optarg, &cb); | |
ff32d342 | 2043 | clear_ref_exclusion(&revs->ref_excludes); |
e7b432c5 JH |
2044 | return argcount; |
2045 | } else if ((argcount = parse_long_opt("exclude", argv, &optarg))) { | |
ff32d342 | 2046 | add_ref_exclusion(&revs->ref_excludes, optarg); |
f6aca0dc | 2047 | return argcount; |
59556548 | 2048 | } else if (starts_with(arg, "--branches=")) { |
f6aca0dc JN |
2049 | struct all_refs_cb cb; |
2050 | init_all_refs_cb(&cb, revs, *flags); | |
2051 | for_each_glob_ref_in(handle_one_ref, arg + 11, "refs/heads/", &cb); | |
ff32d342 | 2052 | clear_ref_exclusion(&revs->ref_excludes); |
59556548 | 2053 | } else if (starts_with(arg, "--tags=")) { |
f6aca0dc JN |
2054 | struct all_refs_cb cb; |
2055 | init_all_refs_cb(&cb, revs, *flags); | |
2056 | for_each_glob_ref_in(handle_one_ref, arg + 7, "refs/tags/", &cb); | |
ff32d342 | 2057 | clear_ref_exclusion(&revs->ref_excludes); |
59556548 | 2058 | } else if (starts_with(arg, "--remotes=")) { |
f6aca0dc JN |
2059 | struct all_refs_cb cb; |
2060 | init_all_refs_cb(&cb, revs, *flags); | |
2061 | for_each_glob_ref_in(handle_one_ref, arg + 10, "refs/remotes/", &cb); | |
ff32d342 | 2062 | clear_ref_exclusion(&revs->ref_excludes); |
f6aca0dc JN |
2063 | } else if (!strcmp(arg, "--reflog")) { |
2064 | handle_reflog(revs, *flags); | |
2065 | } else if (!strcmp(arg, "--not")) { | |
7f34a46f | 2066 | *flags ^= UNINTERESTING | BOTTOM; |
f6aca0dc | 2067 | } else if (!strcmp(arg, "--no-walk")) { |
ca92e59e | 2068 | revs->no_walk = REVISION_WALK_NO_WALK_SORTED; |
59556548 | 2069 | } else if (starts_with(arg, "--no-walk=")) { |
ca92e59e MZ |
2070 | /* |
2071 | * Detached form ("--no-walk X" as opposed to "--no-walk=X") | |
2072 | * not allowed, since the argument is optional. | |
2073 | */ | |
2074 | if (!strcmp(arg + 10, "sorted")) | |
2075 | revs->no_walk = REVISION_WALK_NO_WALK_SORTED; | |
2076 | else if (!strcmp(arg + 10, "unsorted")) | |
2077 | revs->no_walk = REVISION_WALK_NO_WALK_UNSORTED; | |
2078 | else | |
2079 | return error("invalid argument to --no-walk"); | |
f6aca0dc JN |
2080 | } else if (!strcmp(arg, "--do-walk")) { |
2081 | revs->no_walk = 0; | |
2082 | } else { | |
2083 | return 0; | |
2084 | } | |
2085 | ||
2086 | return 1; | |
2087 | } | |
2088 | ||
ae563542 LT |
2089 | /* |
2090 | * Parse revision information, filling in the "rev_info" structure, | |
2091 | * and removing the used arguments from the argument list. | |
2092 | * | |
765ac8ec LT |
2093 | * Returns the number of arguments left that weren't recognized |
2094 | * (which are also moved to the head of the argument list) | |
ae563542 | 2095 | */ |
32962c9b | 2096 | int setup_revisions(int argc, const char **argv, struct rev_info *revs, struct setup_revision_opt *opt) |
ae563542 | 2097 | { |
8e676e8b | 2098 | int i, flags, left, seen_dashdash, read_from_stdin, got_rev_arg = 0, revarg_opt; |
4da5af31 | 2099 | struct cmdline_pathspec prune_data; |
9ef6aeb0 HV |
2100 | const char *submodule = NULL; |
2101 | ||
4da5af31 | 2102 | memset(&prune_data, 0, sizeof(prune_data)); |
9ef6aeb0 HV |
2103 | if (opt) |
2104 | submodule = opt->submodule; | |
ae563542 | 2105 | |
ae563542 | 2106 | /* First, search for "--" */ |
6d5b93f2 | 2107 | if (opt && opt->assume_dashdash) { |
ae563542 | 2108 | seen_dashdash = 1; |
6d5b93f2 CB |
2109 | } else { |
2110 | seen_dashdash = 0; | |
2111 | for (i = 1; i < argc; i++) { | |
2112 | const char *arg = argv[i]; | |
2113 | if (strcmp(arg, "--")) | |
2114 | continue; | |
2115 | argv[i] = NULL; | |
2116 | argc = i; | |
2117 | if (argv[i + 1]) | |
2118 | append_prune_data(&prune_data, argv + i + 1); | |
2119 | seen_dashdash = 1; | |
2120 | break; | |
2121 | } | |
ae563542 LT |
2122 | } |
2123 | ||
02e54220 PH |
2124 | /* Second, deal with arguments and options */ |
2125 | flags = 0; | |
d5f6b1d7 JH |
2126 | revarg_opt = opt ? opt->revarg_opt : 0; |
2127 | if (seen_dashdash) | |
2128 | revarg_opt |= REVARG_CANNOT_BE_FILENAME; | |
8b3dce56 | 2129 | read_from_stdin = 0; |
02e54220 | 2130 | for (left = i = 1; i < argc; i++) { |
ae563542 | 2131 | const char *arg = argv[i]; |
ae563542 | 2132 | if (*arg == '-') { |
cd2bdc53 | 2133 | int opts; |
02e54220 | 2134 | |
f6aca0dc JN |
2135 | opts = handle_revision_pseudo_opt(submodule, |
2136 | revs, argc - i, argv + i, | |
2137 | &flags); | |
2138 | if (opts > 0) { | |
2139 | i += opts - 1; | |
8e64006e JS |
2140 | continue; |
2141 | } | |
f6aca0dc | 2142 | |
8b3dce56 JH |
2143 | if (!strcmp(arg, "--stdin")) { |
2144 | if (revs->disable_stdin) { | |
2145 | argv[left++] = arg; | |
2146 | continue; | |
2147 | } | |
2148 | if (read_from_stdin++) | |
2149 | die("--stdin given twice?"); | |
60da8b15 | 2150 | read_revisions_from_stdin(revs, &prune_data); |
8b3dce56 JH |
2151 | continue; |
2152 | } | |
2d10c555 | 2153 | |
02e54220 | 2154 | opts = handle_revision_opt(revs, argc - i, argv + i, &left, argv); |
cd2bdc53 | 2155 | if (opts > 0) { |
cd2bdc53 LT |
2156 | i += opts - 1; |
2157 | continue; | |
2158 | } | |
02e54220 PH |
2159 | if (opts < 0) |
2160 | exit(128); | |
ae563542 LT |
2161 | continue; |
2162 | } | |
ae563542 | 2163 | |
8e676e8b JH |
2164 | |
2165 | if (handle_revision_arg(arg, revs, flags, revarg_opt)) { | |
5d6f0935 JH |
2166 | int j; |
2167 | if (seen_dashdash || *arg == '^') | |
ae563542 LT |
2168 | die("bad revision '%s'", arg); |
2169 | ||
ea92f41f JH |
2170 | /* If we didn't have a "--": |
2171 | * (1) all filenames must exist; | |
2172 | * (2) all rev-args must not be interpretable | |
2173 | * as a valid filename. | |
2174 | * but the latter we have checked in the main loop. | |
2175 | */ | |
e23d0b4a | 2176 | for (j = i; j < argc; j++) |
023e37c3 | 2177 | verify_filename(revs->prefix, argv[j], j == i); |
e23d0b4a | 2178 | |
60da8b15 | 2179 | append_prune_data(&prune_data, argv + i); |
ae563542 LT |
2180 | break; |
2181 | } | |
8fcaca3f DO |
2182 | else |
2183 | got_rev_arg = 1; | |
ae563542 | 2184 | } |
5d6f0935 | 2185 | |
4da5af31 | 2186 | if (prune_data.nr) { |
93e7d672 JH |
2187 | /* |
2188 | * If we need to introduce the magic "a lone ':' means no | |
2189 | * pathspec whatsoever", here is the place to do so. | |
2190 | * | |
2191 | * if (prune_data.nr == 1 && !strcmp(prune_data[0], ":")) { | |
2192 | * prune_data.nr = 0; | |
2193 | * prune_data.alloc = 0; | |
2194 | * free(prune_data.path); | |
2195 | * prune_data.path = NULL; | |
2196 | * } else { | |
2197 | * terminate prune_data.alloc with NULL and | |
2198 | * call init_pathspec() to set revs->prune_data here. | |
2199 | * } | |
2200 | */ | |
9e57ac55 | 2201 | ALLOC_GROW(prune_data.path, prune_data.nr + 1, prune_data.alloc); |
4da5af31 | 2202 | prune_data.path[prune_data.nr++] = NULL; |
0fdc2ae5 NTND |
2203 | parse_pathspec(&revs->prune_data, 0, 0, |
2204 | revs->prefix, prune_data.path); | |
4da5af31 | 2205 | } |
5486ef0e | 2206 | |
02e54220 | 2207 | if (revs->def == NULL) |
32962c9b | 2208 | revs->def = opt ? opt->def : NULL; |
b4490059 JH |
2209 | if (opt && opt->tweak) |
2210 | opt->tweak(revs, opt); | |
02e54220 | 2211 | if (revs->show_merge) |
ae3e5e1e | 2212 | prepare_show_merge(revs); |
8fcaca3f | 2213 | if (revs->def && !revs->pending.nr && !got_rev_arg) { |
ae563542 | 2214 | unsigned char sha1[20]; |
cd2bdc53 | 2215 | struct object *object; |
249c8f4a | 2216 | struct object_context oc; |
33bd598c | 2217 | if (get_sha1_with_context(revs->def, 0, sha1, &oc)) |
02e54220 PH |
2218 | die("bad default revision '%s'", revs->def); |
2219 | object = get_reference(revs, revs->def, sha1, 0); | |
249c8f4a | 2220 | add_pending_object_with_mode(revs, object, revs->def, oc.mode); |
ae563542 | 2221 | } |
8efdc326 | 2222 | |
b7bb760d LT |
2223 | /* Did the user ask for any diff output? Run the diff! */ |
2224 | if (revs->diffopt.output_format & ~DIFF_FORMAT_NO_OUTPUT) | |
2225 | revs->diff = 1; | |
2226 | ||
0faf2da7 AL |
2227 | /* Pickaxe, diff-filter and rename following need diffs */ |
2228 | if (revs->diffopt.pickaxe || | |
2229 | revs->diffopt.filter || | |
2230 | DIFF_OPT_TST(&revs->diffopt, FOLLOW_RENAMES)) | |
b7bb760d LT |
2231 | revs->diff = 1; |
2232 | ||
9dad9d2e | 2233 | if (revs->topo_order) |
53069686 JH |
2234 | revs->limited = 1; |
2235 | ||
afe069d1 | 2236 | if (revs->prune_data.nr) { |
bd1928df | 2237 | copy_pathspec(&revs->pruning.pathspec, &revs->prune_data); |
750f7b66 | 2238 | /* Can't prune commits with rename following: the paths change.. */ |
8f67f8ae | 2239 | if (!DIFF_OPT_TST(&revs->diffopt, FOLLOW_RENAMES)) |
53b2c823 | 2240 | revs->prune = 1; |
cd2bdc53 | 2241 | if (!revs->full_diff) |
bd1928df NTND |
2242 | copy_pathspec(&revs->diffopt.pathspec, |
2243 | &revs->prune_data); | |
8efdc326 | 2244 | } |
b4490059 | 2245 | if (revs->combine_merges) |
cd2bdc53 | 2246 | revs->ignore_merges = 0; |
cd2bdc53 | 2247 | revs->diffopt.abbrev = revs->abbrev; |
12da1d1f TR |
2248 | |
2249 | if (revs->line_level_traverse) { | |
2250 | revs->limited = 1; | |
2251 | revs->topo_order = 1; | |
2252 | } | |
2253 | ||
28452655 | 2254 | diff_setup_done(&revs->diffopt); |
8efdc326 | 2255 | |
918d4e1c JH |
2256 | grep_commit_pattern_type(GREP_PATTERN_TYPE_UNSPECIFIED, |
2257 | &revs->grep_filter); | |
0843acfd | 2258 | compile_grep_patterns(&revs->grep_filter); |
bd95fcd3 | 2259 | |
d56651c0 SP |
2260 | if (revs->reverse && revs->reflog_info) |
2261 | die("cannot combine --reverse with --walk-reflogs"); | |
8bb65883 | 2262 | if (revs->rewrite_parents && revs->children.name) |
f35f5603 | 2263 | die("cannot combine --parents and --children"); |
d56651c0 | 2264 | |
7fefda5c AS |
2265 | /* |
2266 | * Limitations on the graph functionality | |
2267 | */ | |
2268 | if (revs->reverse && revs->graph) | |
2269 | die("cannot combine --reverse with --graph"); | |
2270 | ||
2271 | if (revs->reflog_info && revs->graph) | |
2272 | die("cannot combine --walk-reflogs with --graph"); | |
baa6378f JH |
2273 | if (!revs->reflog_info && revs->grep_filter.use_reflog_filter) |
2274 | die("cannot use --grep-reflog without --walk-reflogs"); | |
7fefda5c | 2275 | |
ae563542 LT |
2276 | return left; |
2277 | } | |
a4a88b2b | 2278 | |
f35f5603 JH |
2279 | static void add_child(struct rev_info *revs, struct commit *parent, struct commit *child) |
2280 | { | |
2281 | struct commit_list *l = xcalloc(1, sizeof(*l)); | |
2282 | ||
2283 | l->item = child; | |
2284 | l->next = add_decoration(&revs->children, &parent->object, l); | |
2285 | } | |
2286 | ||
d0af663e | 2287 | static int remove_duplicate_parents(struct rev_info *revs, struct commit *commit) |
6546b593 | 2288 | { |
d0af663e | 2289 | struct treesame_state *ts = lookup_decoration(&revs->treesame, &commit->object); |
6546b593 JH |
2290 | struct commit_list **pp, *p; |
2291 | int surviving_parents; | |
2292 | ||
2293 | /* Examine existing parents while marking ones we have seen... */ | |
2294 | pp = &commit->parents; | |
d0af663e | 2295 | surviving_parents = 0; |
6546b593 JH |
2296 | while ((p = *pp) != NULL) { |
2297 | struct commit *parent = p->item; | |
2298 | if (parent->object.flags & TMP_MARK) { | |
2299 | *pp = p->next; | |
d0af663e KB |
2300 | if (ts) |
2301 | compact_treesame(revs, commit, surviving_parents); | |
6546b593 JH |
2302 | continue; |
2303 | } | |
2304 | parent->object.flags |= TMP_MARK; | |
d0af663e | 2305 | surviving_parents++; |
6546b593 JH |
2306 | pp = &p->next; |
2307 | } | |
d0af663e | 2308 | /* clear the temporary mark */ |
6546b593 JH |
2309 | for (p = commit->parents; p; p = p->next) { |
2310 | p->item->object.flags &= ~TMP_MARK; | |
6546b593 | 2311 | } |
d0af663e | 2312 | /* no update_treesame() - removing duplicates can't affect TREESAME */ |
6546b593 JH |
2313 | return surviving_parents; |
2314 | } | |
2315 | ||
faf0156b JH |
2316 | struct merge_simplify_state { |
2317 | struct commit *simplified; | |
2318 | }; | |
2319 | ||
2320 | static struct merge_simplify_state *locate_simplify_state(struct rev_info *revs, struct commit *commit) | |
2321 | { | |
2322 | struct merge_simplify_state *st; | |
2323 | ||
2324 | st = lookup_decoration(&revs->merge_simplification, &commit->object); | |
2325 | if (!st) { | |
2326 | st = xcalloc(1, sizeof(*st)); | |
2327 | add_decoration(&revs->merge_simplification, &commit->object, st); | |
2328 | } | |
2329 | return st; | |
2330 | } | |
2331 | ||
d0af663e KB |
2332 | static int mark_redundant_parents(struct rev_info *revs, struct commit *commit) |
2333 | { | |
2334 | struct commit_list *h = reduce_heads(commit->parents); | |
2335 | int i = 0, marked = 0; | |
2336 | struct commit_list *po, *pn; | |
2337 | ||
2338 | /* Want these for sanity-checking only */ | |
2339 | int orig_cnt = commit_list_count(commit->parents); | |
2340 | int cnt = commit_list_count(h); | |
2341 | ||
2342 | /* | |
2343 | * Not ready to remove items yet, just mark them for now, based | |
2344 | * on the output of reduce_heads(). reduce_heads outputs the reduced | |
2345 | * set in its original order, so this isn't too hard. | |
2346 | */ | |
2347 | po = commit->parents; | |
2348 | pn = h; | |
2349 | while (po) { | |
2350 | if (pn && po->item == pn->item) { | |
2351 | pn = pn->next; | |
2352 | i++; | |
2353 | } else { | |
2354 | po->item->object.flags |= TMP_MARK; | |
2355 | marked++; | |
2356 | } | |
2357 | po=po->next; | |
2358 | } | |
2359 | ||
2360 | if (i != cnt || cnt+marked != orig_cnt) | |
2361 | die("mark_redundant_parents %d %d %d %d", orig_cnt, cnt, i, marked); | |
2362 | ||
2363 | free_commit_list(h); | |
2364 | ||
2365 | return marked; | |
2366 | } | |
2367 | ||
143f1eaf KB |
2368 | static int mark_treesame_root_parents(struct rev_info *revs, struct commit *commit) |
2369 | { | |
2370 | struct commit_list *p; | |
2371 | int marked = 0; | |
2372 | ||
2373 | for (p = commit->parents; p; p = p->next) { | |
2374 | struct commit *parent = p->item; | |
2375 | if (!parent->parents && (parent->object.flags & TREESAME)) { | |
2376 | parent->object.flags |= TMP_MARK; | |
2377 | marked++; | |
2378 | } | |
2379 | } | |
2380 | ||
2381 | return marked; | |
2382 | } | |
2383 | ||
9c129eab KB |
2384 | /* |
2385 | * Awkward naming - this means one parent we are TREESAME to. | |
2386 | * cf mark_treesame_root_parents: root parents that are TREESAME (to an | |
2387 | * empty tree). Better name suggestions? | |
2388 | */ | |
2389 | static int leave_one_treesame_to_parent(struct rev_info *revs, struct commit *commit) | |
2390 | { | |
2391 | struct treesame_state *ts = lookup_decoration(&revs->treesame, &commit->object); | |
2392 | struct commit *unmarked = NULL, *marked = NULL; | |
2393 | struct commit_list *p; | |
2394 | unsigned n; | |
2395 | ||
2396 | for (p = commit->parents, n = 0; p; p = p->next, n++) { | |
2397 | if (ts->treesame[n]) { | |
2398 | if (p->item->object.flags & TMP_MARK) { | |
2399 | if (!marked) | |
2400 | marked = p->item; | |
2401 | } else { | |
2402 | if (!unmarked) { | |
2403 | unmarked = p->item; | |
2404 | break; | |
2405 | } | |
2406 | } | |
2407 | } | |
2408 | } | |
2409 | ||
2410 | /* | |
2411 | * If we are TREESAME to a marked-for-deletion parent, but not to any | |
2412 | * unmarked parents, unmark the first TREESAME parent. This is the | |
2413 | * parent that the default simplify_history==1 scan would have followed, | |
2414 | * and it doesn't make sense to omit that path when asking for a | |
2415 | * simplified full history. Retaining it improves the chances of | |
2416 | * understanding odd missed merges that took an old version of a file. | |
2417 | * | |
2418 | * Example: | |
2419 | * | |
2420 | * I--------*X A modified the file, but mainline merge X used | |
2421 | * \ / "-s ours", so took the version from I. X is | |
2422 | * `-*A--' TREESAME to I and !TREESAME to A. | |
2423 | * | |
2424 | * Default log from X would produce "I". Without this check, | |
2425 | * --full-history --simplify-merges would produce "I-A-X", showing | |
2426 | * the merge commit X and that it changed A, but not making clear that | |
2427 | * it had just taken the I version. With this check, the topology above | |
2428 | * is retained. | |
2429 | * | |
2430 | * Note that it is possible that the simplification chooses a different | |
2431 | * TREESAME parent from the default, in which case this test doesn't | |
2432 | * activate, and we _do_ drop the default parent. Example: | |
2433 | * | |
2434 | * I------X A modified the file, but it was reverted in B, | |
2435 | * \ / meaning mainline merge X is TREESAME to both | |
2436 | * *A-*B parents. | |
2437 | * | |
2438 | * Default log would produce "I" by following the first parent; | |
2439 | * --full-history --simplify-merges will produce "I-A-B". But this is a | |
2440 | * reasonable result - it presents a logical full history leading from | |
2441 | * I to X, and X is not an important merge. | |
2442 | */ | |
2443 | if (!unmarked && marked) { | |
2444 | marked->object.flags &= ~TMP_MARK; | |
2445 | return 1; | |
2446 | } | |
2447 | ||
2448 | return 0; | |
2449 | } | |
2450 | ||
d0af663e KB |
2451 | static int remove_marked_parents(struct rev_info *revs, struct commit *commit) |
2452 | { | |
2453 | struct commit_list **pp, *p; | |
2454 | int nth_parent, removed = 0; | |
2455 | ||
2456 | pp = &commit->parents; | |
2457 | nth_parent = 0; | |
2458 | while ((p = *pp) != NULL) { | |
2459 | struct commit *parent = p->item; | |
2460 | if (parent->object.flags & TMP_MARK) { | |
2461 | parent->object.flags &= ~TMP_MARK; | |
2462 | *pp = p->next; | |
2463 | free(p); | |
2464 | removed++; | |
2465 | compact_treesame(revs, commit, nth_parent); | |
2466 | continue; | |
2467 | } | |
2468 | pp = &p->next; | |
2469 | nth_parent++; | |
2470 | } | |
2471 | ||
2472 | /* Removing parents can only increase TREESAMEness */ | |
2473 | if (removed && !(commit->object.flags & TREESAME)) | |
2474 | update_treesame(revs, commit); | |
2475 | ||
2476 | return nth_parent; | |
2477 | } | |
2478 | ||
faf0156b | 2479 | static struct commit_list **simplify_one(struct rev_info *revs, struct commit *commit, struct commit_list **tail) |
6546b593 JH |
2480 | { |
2481 | struct commit_list *p; | |
4d826608 | 2482 | struct commit *parent; |
faf0156b | 2483 | struct merge_simplify_state *st, *pst; |
6546b593 JH |
2484 | int cnt; |
2485 | ||
faf0156b JH |
2486 | st = locate_simplify_state(revs, commit); |
2487 | ||
6546b593 | 2488 | /* |
6546b593 JH |
2489 | * Have we handled this one? |
2490 | */ | |
faf0156b | 2491 | if (st->simplified) |
6546b593 JH |
2492 | return tail; |
2493 | ||
2494 | /* | |
2495 | * An UNINTERESTING commit simplifies to itself, so does a | |
2496 | * root commit. We do not rewrite parents of such commit | |
2497 | * anyway. | |
2498 | */ | |
2499 | if ((commit->object.flags & UNINTERESTING) || !commit->parents) { | |
faf0156b | 2500 | st->simplified = commit; |
6546b593 JH |
2501 | return tail; |
2502 | } | |
2503 | ||
2504 | /* | |
6e513ba3 JH |
2505 | * Do we know what commit all of our parents that matter |
2506 | * should be rewritten to? Otherwise we are not ready to | |
2507 | * rewrite this one yet. | |
6546b593 JH |
2508 | */ |
2509 | for (cnt = 0, p = commit->parents; p; p = p->next) { | |
faf0156b JH |
2510 | pst = locate_simplify_state(revs, p->item); |
2511 | if (!pst->simplified) { | |
6546b593 JH |
2512 | tail = &commit_list_insert(p->item, tail)->next; |
2513 | cnt++; | |
2514 | } | |
6e513ba3 JH |
2515 | if (revs->first_parent_only) |
2516 | break; | |
6546b593 | 2517 | } |
53030f8d JH |
2518 | if (cnt) { |
2519 | tail = &commit_list_insert(commit, tail)->next; | |
6546b593 | 2520 | return tail; |
53030f8d | 2521 | } |
6546b593 JH |
2522 | |
2523 | /* | |
d0af663e KB |
2524 | * Rewrite our list of parents. Note that this cannot |
2525 | * affect our TREESAME flags in any way - a commit is | |
2526 | * always TREESAME to its simplification. | |
6546b593 | 2527 | */ |
faf0156b JH |
2528 | for (p = commit->parents; p; p = p->next) { |
2529 | pst = locate_simplify_state(revs, p->item); | |
2530 | p->item = pst->simplified; | |
6e513ba3 JH |
2531 | if (revs->first_parent_only) |
2532 | break; | |
faf0156b | 2533 | } |
4b7f53da | 2534 | |
0290bf12 | 2535 | if (revs->first_parent_only) |
6e513ba3 | 2536 | cnt = 1; |
0290bf12 | 2537 | else |
d0af663e | 2538 | cnt = remove_duplicate_parents(revs, commit); |
6546b593 JH |
2539 | |
2540 | /* | |
2541 | * It is possible that we are a merge and one side branch | |
2542 | * does not have any commit that touches the given paths; | |
d0af663e KB |
2543 | * in such a case, the immediate parent from that branch |
2544 | * will be rewritten to be the merge base. | |
6546b593 JH |
2545 | * |
2546 | * o----X X: the commit we are looking at; | |
2547 | * / / o: a commit that touches the paths; | |
2548 | * ---o----' | |
2549 | * | |
143f1eaf KB |
2550 | * Further, a merge of an independent branch that doesn't |
2551 | * touch the path will reduce to a treesame root parent: | |
2552 | * | |
2553 | * ----o----X X: the commit we are looking at; | |
2554 | * / o: a commit that touches the paths; | |
2555 | * r r: a root commit not touching the paths | |
2556 | * | |
2557 | * Detect and simplify both cases. | |
6546b593 JH |
2558 | */ |
2559 | if (1 < cnt) { | |
d0af663e | 2560 | int marked = mark_redundant_parents(revs, commit); |
143f1eaf | 2561 | marked += mark_treesame_root_parents(revs, commit); |
9c129eab KB |
2562 | if (marked) |
2563 | marked -= leave_one_treesame_to_parent(revs, commit); | |
d0af663e KB |
2564 | if (marked) |
2565 | cnt = remove_marked_parents(revs, commit); | |
6546b593 JH |
2566 | } |
2567 | ||
2568 | /* | |
2569 | * A commit simplifies to itself if it is a root, if it is | |
2570 | * UNINTERESTING, if it touches the given paths, or if it is a | |
4d826608 | 2571 | * merge and its parents don't simplify to one relevant commit |
6546b593 JH |
2572 | * (the first two cases are already handled at the beginning of |
2573 | * this function). | |
2574 | * | |
4d826608 KB |
2575 | * Otherwise, it simplifies to what its sole relevant parent |
2576 | * simplifies to. | |
6546b593 JH |
2577 | */ |
2578 | if (!cnt || | |
2579 | (commit->object.flags & UNINTERESTING) || | |
2580 | !(commit->object.flags & TREESAME) || | |
4d826608 | 2581 | (parent = one_relevant_parent(revs, commit->parents)) == NULL) |
faf0156b JH |
2582 | st->simplified = commit; |
2583 | else { | |
4d826608 | 2584 | pst = locate_simplify_state(revs, parent); |
faf0156b JH |
2585 | st->simplified = pst->simplified; |
2586 | } | |
6546b593 JH |
2587 | return tail; |
2588 | } | |
2589 | ||
2590 | static void simplify_merges(struct rev_info *revs) | |
2591 | { | |
ab9d75a8 | 2592 | struct commit_list *list, *next; |
6546b593 | 2593 | struct commit_list *yet_to_do, **tail; |
ab9d75a8 | 2594 | struct commit *commit; |
6546b593 | 2595 | |
5eac739e JH |
2596 | if (!revs->prune) |
2597 | return; | |
65347030 | 2598 | |
6546b593 JH |
2599 | /* feed the list reversed */ |
2600 | yet_to_do = NULL; | |
ab9d75a8 JH |
2601 | for (list = revs->commits; list; list = next) { |
2602 | commit = list->item; | |
2603 | next = list->next; | |
2604 | /* | |
2605 | * Do not free(list) here yet; the original list | |
2606 | * is used later in this function. | |
2607 | */ | |
2608 | commit_list_insert(commit, &yet_to_do); | |
2609 | } | |
6546b593 JH |
2610 | while (yet_to_do) { |
2611 | list = yet_to_do; | |
2612 | yet_to_do = NULL; | |
2613 | tail = &yet_to_do; | |
2614 | while (list) { | |
ab9d75a8 JH |
2615 | commit = list->item; |
2616 | next = list->next; | |
6546b593 JH |
2617 | free(list); |
2618 | list = next; | |
faf0156b | 2619 | tail = simplify_one(revs, commit, tail); |
6546b593 JH |
2620 | } |
2621 | } | |
2622 | ||
2623 | /* clean up the result, removing the simplified ones */ | |
2624 | list = revs->commits; | |
2625 | revs->commits = NULL; | |
2626 | tail = &revs->commits; | |
2627 | while (list) { | |
faf0156b | 2628 | struct merge_simplify_state *st; |
ab9d75a8 JH |
2629 | |
2630 | commit = list->item; | |
2631 | next = list->next; | |
6546b593 JH |
2632 | free(list); |
2633 | list = next; | |
faf0156b JH |
2634 | st = locate_simplify_state(revs, commit); |
2635 | if (st->simplified == commit) | |
6546b593 JH |
2636 | tail = &commit_list_insert(commit, tail)->next; |
2637 | } | |
6546b593 JH |
2638 | } |
2639 | ||
f35f5603 JH |
2640 | static void set_children(struct rev_info *revs) |
2641 | { | |
2642 | struct commit_list *l; | |
2643 | for (l = revs->commits; l; l = l->next) { | |
2644 | struct commit *commit = l->item; | |
2645 | struct commit_list *p; | |
2646 | ||
2647 | for (p = commit->parents; p; p = p->next) | |
2648 | add_child(revs, p->item, commit); | |
2649 | } | |
2650 | } | |
2651 | ||
bcc0a3ea HV |
2652 | void reset_revision_walk(void) |
2653 | { | |
2654 | clear_object_flags(SEEN | ADDED | SHOWN); | |
2655 | } | |
2656 | ||
cc0e6c5a | 2657 | int prepare_revision_walk(struct rev_info *revs) |
a4a88b2b | 2658 | { |
1f1e895f | 2659 | int nr = revs->pending.nr; |
94d23673 | 2660 | struct object_array_entry *e, *list; |
2e7da8e9 | 2661 | struct commit_list **next = &revs->commits; |
cd2bdc53 | 2662 | |
94d23673 | 2663 | e = list = revs->pending.objects; |
1f1e895f LT |
2664 | revs->pending.nr = 0; |
2665 | revs->pending.alloc = 0; | |
2666 | revs->pending.objects = NULL; | |
2667 | while (--nr >= 0) { | |
94d23673 | 2668 | struct commit *commit = handle_commit(revs, e->item, e->name); |
cd2bdc53 LT |
2669 | if (commit) { |
2670 | if (!(commit->object.flags & SEEN)) { | |
2671 | commit->object.flags |= SEEN; | |
2e7da8e9 | 2672 | next = commit_list_append(commit, next); |
cd2bdc53 LT |
2673 | } |
2674 | } | |
94d23673 | 2675 | e++; |
cd2bdc53 | 2676 | } |
4a43d374 RS |
2677 | if (!revs->leak_pending) |
2678 | free(list); | |
cd2bdc53 | 2679 | |
d0af663e | 2680 | /* Signal whether we need per-parent treesame decoration */ |
4d826608 KB |
2681 | if (revs->simplify_merges || |
2682 | (revs->limited && limiting_can_increase_treesame(revs))) | |
d0af663e KB |
2683 | revs->treesame.name = "treesame"; |
2684 | ||
ca92e59e MZ |
2685 | if (revs->no_walk != REVISION_WALK_NO_WALK_UNSORTED) |
2686 | commit_list_sort_by_date(&revs->commits); | |
ba1d4505 | 2687 | if (revs->no_walk) |
cc0e6c5a | 2688 | return 0; |
a4a88b2b | 2689 | if (revs->limited) |
cc0e6c5a AR |
2690 | if (limit_list(revs) < 0) |
2691 | return -1; | |
a4a88b2b | 2692 | if (revs->topo_order) |
08f704f2 | 2693 | sort_in_topological_order(&revs->commits, revs->sort_order); |
12da1d1f TR |
2694 | if (revs->line_level_traverse) |
2695 | line_log_filter(revs); | |
6546b593 JH |
2696 | if (revs->simplify_merges) |
2697 | simplify_merges(revs); | |
f35f5603 JH |
2698 | if (revs->children.name) |
2699 | set_children(revs); | |
cc0e6c5a | 2700 | return 0; |
a4a88b2b LT |
2701 | } |
2702 | ||
cc0e6c5a | 2703 | static enum rewrite_result rewrite_one(struct rev_info *revs, struct commit **pp) |
765ac8ec | 2704 | { |
fce87ae5 AG |
2705 | struct commit_list *cache = NULL; |
2706 | ||
765ac8ec LT |
2707 | for (;;) { |
2708 | struct commit *p = *pp; | |
3381c790 | 2709 | if (!revs->limited) |
fce87ae5 | 2710 | if (add_parents_to_list(revs, p, &revs->commits, &cache) < 0) |
cc0e6c5a | 2711 | return rewrite_one_error; |
7dc0fe3b LT |
2712 | if (p->object.flags & UNINTERESTING) |
2713 | return rewrite_one_ok; | |
2714 | if (!(p->object.flags & TREESAME)) | |
cc0e6c5a | 2715 | return rewrite_one_ok; |
765ac8ec | 2716 | if (!p->parents) |
cc0e6c5a | 2717 | return rewrite_one_noparents; |
4d826608 KB |
2718 | if ((p = one_relevant_parent(revs, p->parents)) == NULL) |
2719 | return rewrite_one_ok; | |
2720 | *pp = p; | |
765ac8ec LT |
2721 | } |
2722 | } | |
2723 | ||
c7edcae0 BY |
2724 | int rewrite_parents(struct rev_info *revs, struct commit *commit, |
2725 | rewrite_parent_fn_t rewrite_parent) | |
765ac8ec LT |
2726 | { |
2727 | struct commit_list **pp = &commit->parents; | |
2728 | while (*pp) { | |
2729 | struct commit_list *parent = *pp; | |
c7edcae0 | 2730 | switch (rewrite_parent(revs, &parent->item)) { |
cc0e6c5a AR |
2731 | case rewrite_one_ok: |
2732 | break; | |
2733 | case rewrite_one_noparents: | |
765ac8ec LT |
2734 | *pp = parent->next; |
2735 | continue; | |
cc0e6c5a AR |
2736 | case rewrite_one_error: |
2737 | return -1; | |
765ac8ec LT |
2738 | } |
2739 | pp = &parent->next; | |
2740 | } | |
d0af663e | 2741 | remove_duplicate_parents(revs, commit); |
cc0e6c5a | 2742 | return 0; |
765ac8ec LT |
2743 | } |
2744 | ||
d72fbe81 AP |
2745 | static int commit_rewrite_person(struct strbuf *buf, const char *what, struct string_list *mailmap) |
2746 | { | |
2747 | char *person, *endp; | |
2748 | size_t len, namelen, maillen; | |
2749 | const char *name; | |
2750 | const char *mail; | |
2751 | struct ident_split ident; | |
2752 | ||
2753 | person = strstr(buf->buf, what); | |
2754 | if (!person) | |
2755 | return 0; | |
2756 | ||
2757 | person += strlen(what); | |
2758 | endp = strchr(person, '\n'); | |
2759 | if (!endp) | |
2760 | return 0; | |
2761 | ||
2762 | len = endp - person; | |
2763 | ||
2764 | if (split_ident_line(&ident, person, len)) | |
2765 | return 0; | |
2766 | ||
2767 | mail = ident.mail_begin; | |
2768 | maillen = ident.mail_end - ident.mail_begin; | |
2769 | name = ident.name_begin; | |
2770 | namelen = ident.name_end - ident.name_begin; | |
2771 | ||
2772 | if (map_user(mailmap, &mail, &maillen, &name, &namelen)) { | |
2773 | struct strbuf namemail = STRBUF_INIT; | |
2774 | ||
2775 | strbuf_addf(&namemail, "%.*s <%.*s>", | |
2776 | (int)namelen, name, (int)maillen, mail); | |
2777 | ||
2778 | strbuf_splice(buf, ident.name_begin - buf->buf, | |
2779 | ident.mail_end - ident.name_begin + 1, | |
2780 | namemail.buf, namemail.len); | |
2781 | ||
2782 | strbuf_release(&namemail); | |
2783 | ||
2784 | return 1; | |
2785 | } | |
2786 | ||
2787 | return 0; | |
2788 | } | |
2789 | ||
8ecae9b0 JH |
2790 | static int commit_match(struct commit *commit, struct rev_info *opt) |
2791 | { | |
72fd13f7 | 2792 | int retval; |
04deccda | 2793 | const char *encoding; |
b000c59b | 2794 | const char *message; |
72fd13f7 | 2795 | struct strbuf buf = STRBUF_INIT; |
04deccda | 2796 | |
80235ba7 | 2797 | if (!opt->grep_filter.pattern_list && !opt->grep_filter.header_list) |
8ecae9b0 | 2798 | return 1; |
baa6378f JH |
2799 | |
2800 | /* Prepend "fake" headers as needed */ | |
2801 | if (opt->grep_filter.use_reflog_filter) { | |
72fd13f7 NTND |
2802 | strbuf_addstr(&buf, "reflog "); |
2803 | get_reflog_message(&buf, opt->reflog_info); | |
2804 | strbuf_addch(&buf, '\n'); | |
72fd13f7 | 2805 | } |
baa6378f | 2806 | |
04deccda JK |
2807 | /* |
2808 | * We grep in the user's output encoding, under the assumption that it | |
2809 | * is the encoding they are most likely to write their grep pattern | |
2810 | * for. In addition, it means we will match the "notes" encoding below, | |
2811 | * so we will not end up with a buffer that has two different encodings | |
2812 | * in it. | |
2813 | */ | |
2814 | encoding = get_log_output_encoding(); | |
5a10d236 | 2815 | message = logmsg_reencode(commit, NULL, encoding); |
04deccda | 2816 | |
baa6378f JH |
2817 | /* Copy the commit to temporary if we are using "fake" headers */ |
2818 | if (buf.len) | |
04deccda | 2819 | strbuf_addstr(&buf, message); |
baa6378f | 2820 | |
df874fa8 | 2821 | if (opt->grep_filter.header_list && opt->mailmap) { |
d72fbe81 | 2822 | if (!buf.len) |
04deccda | 2823 | strbuf_addstr(&buf, message); |
d72fbe81 AP |
2824 | |
2825 | commit_rewrite_person(&buf, "\nauthor ", opt->mailmap); | |
2826 | commit_rewrite_person(&buf, "\ncommitter ", opt->mailmap); | |
2827 | } | |
2828 | ||
38cfe915 NTND |
2829 | /* Append "fake" message parts as needed */ |
2830 | if (opt->show_notes) { | |
2831 | if (!buf.len) | |
04deccda JK |
2832 | strbuf_addstr(&buf, message); |
2833 | format_display_notes(commit->object.sha1, &buf, encoding, 1); | |
38cfe915 NTND |
2834 | } |
2835 | ||
b000c59b JK |
2836 | /* |
2837 | * Find either in the original commit message, or in the temporary. | |
2838 | * Note that we cast away the constness of "message" here. It is | |
2839 | * const because it may come from the cached commit buffer. That's OK, | |
2840 | * because we know that it is modifiable heap memory, and that while | |
2841 | * grep_buffer may modify it for speed, it will restore any | |
2842 | * changes before returning. | |
2843 | */ | |
72fd13f7 NTND |
2844 | if (buf.len) |
2845 | retval = grep_buffer(&opt->grep_filter, buf.buf, buf.len); | |
2846 | else | |
2847 | retval = grep_buffer(&opt->grep_filter, | |
b000c59b | 2848 | (char *)message, strlen(message)); |
72fd13f7 | 2849 | strbuf_release(&buf); |
b66103c3 | 2850 | unuse_commit_buffer(commit, message); |
72fd13f7 | 2851 | return retval; |
8ecae9b0 JH |
2852 | } |
2853 | ||
53d00b39 | 2854 | static inline int want_ancestry(const struct rev_info *revs) |
f35f5603 | 2855 | { |
8bb65883 | 2856 | return (revs->rewrite_parents || revs->children.name); |
f35f5603 JH |
2857 | } |
2858 | ||
beb5af43 | 2859 | enum commit_action get_commit_action(struct rev_info *revs, struct commit *commit) |
252a7c02 LT |
2860 | { |
2861 | if (commit->object.flags & SHOWN) | |
2862 | return commit_ignore; | |
4d6acb70 | 2863 | if (revs->unpacked && has_sha1_pack(commit->object.sha1)) |
252a7c02 | 2864 | return commit_ignore; |
3131b713 LT |
2865 | if (revs->show_all) |
2866 | return commit_show; | |
252a7c02 LT |
2867 | if (commit->object.flags & UNINTERESTING) |
2868 | return commit_ignore; | |
2869 | if (revs->min_age != -1 && (commit->date > revs->min_age)) | |
2870 | return commit_ignore; | |
ad5aeede | 2871 | if (revs->min_parents || (revs->max_parents >= 0)) { |
bf3418b0 | 2872 | int n = commit_list_count(commit->parents); |
ad5aeede MG |
2873 | if ((n < revs->min_parents) || |
2874 | ((revs->max_parents >= 0) && (n > revs->max_parents))) | |
2875 | return commit_ignore; | |
2876 | } | |
252a7c02 LT |
2877 | if (!commit_match(commit, revs)) |
2878 | return commit_ignore; | |
53b2c823 | 2879 | if (revs->prune && revs->dense) { |
252a7c02 | 2880 | /* Commit without changes? */ |
7dc0fe3b | 2881 | if (commit->object.flags & TREESAME) { |
bf3418b0 KB |
2882 | int n; |
2883 | struct commit_list *p; | |
252a7c02 | 2884 | /* drop merges unless we want parenthood */ |
f35f5603 | 2885 | if (!want_ancestry(revs)) |
252a7c02 | 2886 | return commit_ignore; |
bf3418b0 KB |
2887 | /* |
2888 | * If we want ancestry, then need to keep any merges | |
2889 | * between relevant commits to tie together topology. | |
2890 | * For consistency with TREESAME and simplification | |
2891 | * use "relevant" here rather than just INTERESTING, | |
2892 | * to treat bottom commit(s) as part of the topology. | |
2893 | */ | |
2894 | for (n = 0, p = commit->parents; p; p = p->next) | |
2895 | if (relevant_commit(p->item)) | |
2896 | if (++n >= 2) | |
2897 | return commit_show; | |
2898 | return commit_ignore; | |
252a7c02 | 2899 | } |
252a7c02 LT |
2900 | } |
2901 | return commit_show; | |
2902 | } | |
2903 | ||
beb5af43 AS |
2904 | enum commit_action simplify_commit(struct rev_info *revs, struct commit *commit) |
2905 | { | |
2906 | enum commit_action action = get_commit_action(revs, commit); | |
2907 | ||
2908 | if (action == commit_show && | |
2909 | !revs->show_all && | |
2910 | revs->prune && revs->dense && want_ancestry(revs)) { | |
53d00b39 TR |
2911 | /* |
2912 | * --full-diff on simplified parents is no good: it | |
2913 | * will show spurious changes from the commits that | |
2914 | * were elided. So we save the parents on the side | |
2915 | * when --full-diff is in effect. | |
2916 | */ | |
2917 | if (revs->full_diff) | |
2918 | save_parents(revs, commit); | |
c7edcae0 | 2919 | if (rewrite_parents(revs, commit, rewrite_one) < 0) |
beb5af43 AS |
2920 | return commit_error; |
2921 | } | |
2922 | return action; | |
2923 | } | |
2924 | ||
1b32dece NTND |
2925 | static void track_linear(struct rev_info *revs, struct commit *commit) |
2926 | { | |
2927 | if (revs->track_first_time) { | |
2928 | revs->linear = 1; | |
2929 | revs->track_first_time = 0; | |
2930 | } else { | |
2931 | struct commit_list *p; | |
2932 | for (p = revs->previous_parents; p; p = p->next) | |
2933 | if (p->item == NULL || /* first commit */ | |
2934 | !hashcmp(p->item->object.sha1, commit->object.sha1)) | |
2935 | break; | |
2936 | revs->linear = p != NULL; | |
2937 | } | |
2938 | if (revs->reverse) { | |
2939 | if (revs->linear) | |
2940 | commit->object.flags |= TRACK_LINEAR; | |
2941 | } | |
2942 | free_commit_list(revs->previous_parents); | |
2943 | revs->previous_parents = copy_commit_list(commit->parents); | |
2944 | } | |
2945 | ||
d5db6c9e | 2946 | static struct commit *get_revision_1(struct rev_info *revs) |
a4a88b2b | 2947 | { |
d5db6c9e | 2948 | if (!revs->commits) |
a4a88b2b | 2949 | return NULL; |
a4a88b2b | 2950 | |
765ac8ec | 2951 | do { |
cb115748 LT |
2952 | struct commit_list *entry = revs->commits; |
2953 | struct commit *commit = entry->item; | |
ea5ed3ab | 2954 | |
cb115748 LT |
2955 | revs->commits = entry->next; |
2956 | free(entry); | |
2a0925be | 2957 | |
ffa1eeae | 2958 | if (revs->reflog_info) { |
838f9a15 | 2959 | save_parents(revs, commit); |
8860fd42 | 2960 | fake_reflog_parent(revs->reflog_info, commit); |
ffa1eeae JK |
2961 | commit->object.flags &= ~(ADDED | SEEN | SHOWN); |
2962 | } | |
8860fd42 | 2963 | |
2a0925be LT |
2964 | /* |
2965 | * If we haven't done the list limiting, we need to look at | |
be7db6e5 LT |
2966 | * the parents here. We also need to do the date-based limiting |
2967 | * that we'd otherwise have done in limit_list(). | |
2a0925be | 2968 | */ |
be7db6e5 | 2969 | if (!revs->limited) { |
744f4985 | 2970 | if (revs->max_age != -1 && |
86ab4906 JH |
2971 | (commit->date < revs->max_age)) |
2972 | continue; | |
2db1a43f VM |
2973 | if (add_parents_to_list(revs, commit, &revs->commits, NULL) < 0) { |
2974 | if (!revs->ignore_missing_links) | |
2975 | die("Failed to traverse parents of commit %s", | |
2976 | sha1_to_hex(commit->object.sha1)); | |
2977 | } | |
be7db6e5 | 2978 | } |
744f4985 | 2979 | |
252a7c02 LT |
2980 | switch (simplify_commit(revs, commit)) { |
2981 | case commit_ignore: | |
8ecae9b0 | 2982 | continue; |
252a7c02 | 2983 | case commit_error: |
ed62089c JH |
2984 | die("Failed to simplify parents of commit %s", |
2985 | sha1_to_hex(commit->object.sha1)); | |
252a7c02 | 2986 | default: |
1b32dece NTND |
2987 | if (revs->track_linear) |
2988 | track_linear(revs, commit); | |
252a7c02 | 2989 | return commit; |
384e99a4 | 2990 | } |
765ac8ec LT |
2991 | } while (revs->commits); |
2992 | return NULL; | |
2993 | } | |
d5db6c9e | 2994 | |
be6754c6 MH |
2995 | /* |
2996 | * Return true for entries that have not yet been shown. (This is an | |
2997 | * object_array_each_func_t.) | |
2998 | */ | |
2999 | static int entry_unshown(struct object_array_entry *entry, void *cb_data_unused) | |
86ab4906 | 3000 | { |
be6754c6 MH |
3001 | return !(entry->item->flags & SHOWN); |
3002 | } | |
86ab4906 | 3003 | |
be6754c6 MH |
3004 | /* |
3005 | * If array is on the verge of a realloc, garbage-collect any entries | |
3006 | * that have already been shown to try to free up some space. | |
3007 | */ | |
3008 | static void gc_boundary(struct object_array *array) | |
3009 | { | |
3010 | if (array->nr == array->alloc) | |
3011 | object_array_filter(array, entry_unshown, NULL); | |
86ab4906 JH |
3012 | } |
3013 | ||
4603ec0f AS |
3014 | static void create_boundary_commit_list(struct rev_info *revs) |
3015 | { | |
3016 | unsigned i; | |
3017 | struct commit *c; | |
3018 | struct object_array *array = &revs->boundary_commits; | |
3019 | struct object_array_entry *objects = array->objects; | |
3020 | ||
3021 | /* | |
3022 | * If revs->commits is non-NULL at this point, an error occurred in | |
3023 | * get_revision_1(). Ignore the error and continue printing the | |
3024 | * boundary commits anyway. (This is what the code has always | |
3025 | * done.) | |
3026 | */ | |
3027 | if (revs->commits) { | |
3028 | free_commit_list(revs->commits); | |
3029 | revs->commits = NULL; | |
3030 | } | |
3031 | ||
3032 | /* | |
3033 | * Put all of the actual boundary commits from revs->boundary_commits | |
3034 | * into revs->commits | |
3035 | */ | |
3036 | for (i = 0; i < array->nr; i++) { | |
3037 | c = (struct commit *)(objects[i].item); | |
3038 | if (!c) | |
3039 | continue; | |
3040 | if (!(c->object.flags & CHILD_SHOWN)) | |
3041 | continue; | |
3042 | if (c->object.flags & (SHOWN | BOUNDARY)) | |
3043 | continue; | |
3044 | c->object.flags |= BOUNDARY; | |
3045 | commit_list_insert(c, &revs->commits); | |
3046 | } | |
3047 | ||
3048 | /* | |
3049 | * If revs->topo_order is set, sort the boundary commits | |
3050 | * in topological order | |
3051 | */ | |
08f704f2 | 3052 | sort_in_topological_order(&revs->commits, revs->sort_order); |
4603ec0f AS |
3053 | } |
3054 | ||
7fefda5c | 3055 | static struct commit *get_revision_internal(struct rev_info *revs) |
d5db6c9e JH |
3056 | { |
3057 | struct commit *c = NULL; | |
86ab4906 JH |
3058 | struct commit_list *l; |
3059 | ||
3060 | if (revs->boundary == 2) { | |
4603ec0f AS |
3061 | /* |
3062 | * All of the normal commits have already been returned, | |
3063 | * and we are now returning boundary commits. | |
3064 | * create_boundary_commit_list() has populated | |
3065 | * revs->commits with the remaining commits to return. | |
3066 | */ | |
3067 | c = pop_commit(&revs->commits); | |
3068 | if (c) | |
3069 | c->object.flags |= SHOWN; | |
9c5e66e9 JS |
3070 | return c; |
3071 | } | |
3072 | ||
86ab4906 | 3073 | /* |
b72a1904 JK |
3074 | * If our max_count counter has reached zero, then we are done. We |
3075 | * don't simply return NULL because we still might need to show | |
3076 | * boundary commits. But we want to avoid calling get_revision_1, which | |
3077 | * might do a considerable amount of work finding the next commit only | |
3078 | * for us to throw it away. | |
3079 | * | |
3080 | * If it is non-zero, then either we don't have a max_count at all | |
3081 | * (-1), or it is still counting, in which case we decrement. | |
86ab4906 | 3082 | */ |
b72a1904 JK |
3083 | if (revs->max_count) { |
3084 | c = get_revision_1(revs); | |
3085 | if (c) { | |
9e57ac55 | 3086 | while (revs->skip_count > 0) { |
b72a1904 JK |
3087 | revs->skip_count--; |
3088 | c = get_revision_1(revs); | |
3089 | if (!c) | |
3090 | break; | |
3091 | } | |
8839ac94 | 3092 | } |
86ab4906 | 3093 | |
b72a1904 JK |
3094 | if (revs->max_count > 0) |
3095 | revs->max_count--; | |
d5db6c9e | 3096 | } |
86ab4906 | 3097 | |
c33d8593 JH |
3098 | if (c) |
3099 | c->object.flags |= SHOWN; | |
3100 | ||
9e57ac55 | 3101 | if (!revs->boundary) |
d5db6c9e | 3102 | return c; |
86ab4906 JH |
3103 | |
3104 | if (!c) { | |
3105 | /* | |
3106 | * get_revision_1() runs out the commits, and | |
3107 | * we are done computing the boundaries. | |
3108 | * switch to boundary commits output mode. | |
3109 | */ | |
3110 | revs->boundary = 2; | |
4603ec0f AS |
3111 | |
3112 | /* | |
3113 | * Update revs->commits to contain the list of | |
3114 | * boundary commits. | |
3115 | */ | |
3116 | create_boundary_commit_list(revs); | |
3117 | ||
3c68d67b | 3118 | return get_revision_internal(revs); |
86ab4906 JH |
3119 | } |
3120 | ||
3121 | /* | |
3122 | * boundary commits are the commits that are parents of the | |
3123 | * ones we got from get_revision_1() but they themselves are | |
3124 | * not returned from get_revision_1(). Before returning | |
3125 | * 'c', we need to mark its parents that they could be boundaries. | |
3126 | */ | |
3127 | ||
3128 | for (l = c->parents; l; l = l->next) { | |
3129 | struct object *p; | |
3130 | p = &(l->item->object); | |
c33d8593 | 3131 | if (p->flags & (CHILD_SHOWN | SHOWN)) |
86ab4906 JH |
3132 | continue; |
3133 | p->flags |= CHILD_SHOWN; | |
3134 | gc_boundary(&revs->boundary_commits); | |
3135 | add_object_array(p, NULL, &revs->boundary_commits); | |
3136 | } | |
3137 | ||
3138 | return c; | |
d5db6c9e | 3139 | } |
7fefda5c AS |
3140 | |
3141 | struct commit *get_revision(struct rev_info *revs) | |
3142 | { | |
498bcd31 TR |
3143 | struct commit *c; |
3144 | struct commit_list *reversed; | |
3145 | ||
3146 | if (revs->reverse) { | |
3147 | reversed = NULL; | |
9e57ac55 | 3148 | while ((c = get_revision_internal(revs))) |
498bcd31 | 3149 | commit_list_insert(c, &reversed); |
498bcd31 TR |
3150 | revs->commits = reversed; |
3151 | revs->reverse = 0; | |
3152 | revs->reverse_output_stage = 1; | |
3153 | } | |
3154 | ||
1b32dece NTND |
3155 | if (revs->reverse_output_stage) { |
3156 | c = pop_commit(&revs->commits); | |
3157 | if (revs->track_linear) | |
3158 | revs->linear = !!(c && c->object.flags & TRACK_LINEAR); | |
3159 | return c; | |
3160 | } | |
498bcd31 TR |
3161 | |
3162 | c = get_revision_internal(revs); | |
7fefda5c AS |
3163 | if (c && revs->graph) |
3164 | graph_update(revs->graph, c); | |
1b32dece | 3165 | if (!c) { |
53d00b39 | 3166 | free_saved_parents(revs); |
1b32dece NTND |
3167 | if (revs->previous_parents) { |
3168 | free_commit_list(revs->previous_parents); | |
3169 | revs->previous_parents = NULL; | |
3170 | } | |
3171 | } | |
7fefda5c AS |
3172 | return c; |
3173 | } | |
1df2d656 MG |
3174 | |
3175 | char *get_revision_mark(const struct rev_info *revs, const struct commit *commit) | |
3176 | { | |
3177 | if (commit->object.flags & BOUNDARY) | |
3178 | return "-"; | |
3179 | else if (commit->object.flags & UNINTERESTING) | |
3180 | return "^"; | |
adbbb31e MG |
3181 | else if (commit->object.flags & PATCHSAME) |
3182 | return "="; | |
1df2d656 MG |
3183 | else if (!revs || revs->left_right) { |
3184 | if (commit->object.flags & SYMMETRIC_LEFT) | |
3185 | return "<"; | |
3186 | else | |
3187 | return ">"; | |
3188 | } else if (revs->graph) | |
3189 | return "*"; | |
adbbb31e MG |
3190 | else if (revs->cherry_mark) |
3191 | return "+"; | |
1df2d656 MG |
3192 | return ""; |
3193 | } | |
b1b47554 MG |
3194 | |
3195 | void put_revision_mark(const struct rev_info *revs, const struct commit *commit) | |
3196 | { | |
3197 | char *mark = get_revision_mark(revs, commit); | |
3198 | if (!strlen(mark)) | |
3199 | return; | |
3200 | fputs(mark, stdout); | |
3201 | putchar(' '); | |
3202 | } | |
53d00b39 TR |
3203 | |
3204 | define_commit_slab(saved_parents, struct commit_list *); | |
3205 | ||
838f9a15 TR |
3206 | #define EMPTY_PARENT_LIST ((struct commit_list *)-1) |
3207 | ||
53d00b39 TR |
3208 | void save_parents(struct rev_info *revs, struct commit *commit) |
3209 | { | |
3210 | struct commit_list **pp; | |
3211 | ||
3212 | if (!revs->saved_parents_slab) { | |
3213 | revs->saved_parents_slab = xmalloc(sizeof(struct saved_parents)); | |
3214 | init_saved_parents(revs->saved_parents_slab); | |
3215 | } | |
3216 | ||
3217 | pp = saved_parents_at(revs->saved_parents_slab, commit); | |
838f9a15 TR |
3218 | |
3219 | /* | |
3220 | * When walking with reflogs, we may visit the same commit | |
3221 | * several times: once for each appearance in the reflog. | |
3222 | * | |
3223 | * In this case, save_parents() will be called multiple times. | |
3224 | * We want to keep only the first set of parents. We need to | |
3225 | * store a sentinel value for an empty (i.e., NULL) parent | |
3226 | * list to distinguish it from a not-yet-saved list, however. | |
3227 | */ | |
3228 | if (*pp) | |
3229 | return; | |
3230 | if (commit->parents) | |
3231 | *pp = copy_commit_list(commit->parents); | |
3232 | else | |
3233 | *pp = EMPTY_PARENT_LIST; | |
53d00b39 TR |
3234 | } |
3235 | ||
3236 | struct commit_list *get_saved_parents(struct rev_info *revs, const struct commit *commit) | |
3237 | { | |
838f9a15 TR |
3238 | struct commit_list *parents; |
3239 | ||
53d00b39 TR |
3240 | if (!revs->saved_parents_slab) |
3241 | return commit->parents; | |
3242 | ||
838f9a15 TR |
3243 | parents = *saved_parents_at(revs->saved_parents_slab, commit); |
3244 | if (parents == EMPTY_PARENT_LIST) | |
3245 | return NULL; | |
3246 | return parents; | |
53d00b39 TR |
3247 | } |
3248 | ||
3249 | void free_saved_parents(struct rev_info *revs) | |
3250 | { | |
3251 | if (revs->saved_parents_slab) | |
3252 | clear_saved_parents(revs->saved_parents_slab); | |
3253 | } |