]>
Commit | Line | Data |
---|---|---|
4264dc15 | 1 | #include "builtin.h" |
697cc8ef | 2 | #include "lockfile.h" |
4264dc15 JH |
3 | #include "commit.h" |
4 | #include "refs.h" | |
5 | #include "dir.h" | |
8d8b9f62 | 6 | #include "tree-walk.h" |
1389d9dd JH |
7 | #include "diff.h" |
8 | #include "revision.h" | |
9 | #include "reachable.h" | |
10 | ||
fe2a1816 | 11 | /* NEEDSWORK: switch to using parse_options */ |
1389d9dd | 12 | static const char reflog_expire_usage[] = |
fe2a1816 | 13 | "git reflog expire [--expire=<time>] [--expire-unreachable=<time>] [--rewrite] [--updateref] [--stale-fix] [--dry-run | -n] [--verbose] [--all] <refs>..."; |
3c386aa3 | 14 | static const char reflog_delete_usage[] = |
fe2a1816 | 15 | "git reflog delete [--rewrite] [--updateref] [--dry-run | -n] [--verbose] <refs>..."; |
afcb2e7a DT |
16 | static const char reflog_exists_usage[] = |
17 | "git reflog exists <ref>"; | |
4264dc15 | 18 | |
4aec56d1 JH |
19 | static unsigned long default_reflog_expire; |
20 | static unsigned long default_reflog_expire_unreachable; | |
21 | ||
1389d9dd JH |
22 | struct cmd_reflog_expire_cb { |
23 | struct rev_info revs; | |
1389d9dd | 24 | int stalefix; |
1389d9dd JH |
25 | unsigned long expire_total; |
26 | unsigned long expire_unreachable; | |
552cecc2 | 27 | int recno; |
1389d9dd JH |
28 | }; |
29 | ||
ea7b4f6d | 30 | struct expire_reflog_policy_cb { |
03cb91b1 JH |
31 | enum { |
32 | UE_NORMAL, | |
33 | UE_ALWAYS, | |
34 | UE_HEAD | |
35 | } unreachable_expire_kind; | |
b4ca1db9 JH |
36 | struct commit_list *mark_list; |
37 | unsigned long mark_limit; | |
b729effb | 38 | struct cmd_reflog_expire_cb cmd; |
c48a1635 MH |
39 | struct commit *tip_commit; |
40 | struct commit_list *tips; | |
4264dc15 JH |
41 | }; |
42 | ||
bda3a31c JH |
43 | struct collected_reflog { |
44 | unsigned char sha1[20]; | |
45 | char reflog[FLEX_ARRAY]; | |
46 | }; | |
ddd64c56 | 47 | |
bda3a31c JH |
48 | struct collect_reflog_cb { |
49 | struct collected_reflog **e; | |
50 | int alloc; | |
51 | int nr; | |
52 | }; | |
53 | ||
cd1f9c36 JH |
54 | #define INCOMPLETE (1u<<10) |
55 | #define STUDYING (1u<<11) | |
494fbfe8 | 56 | #define REACHABLE (1u<<12) |
cd1f9c36 | 57 | |
8d8b9f62 JH |
58 | static int tree_is_complete(const unsigned char *sha1) |
59 | { | |
60 | struct tree_desc desc; | |
cd1f9c36 JH |
61 | struct name_entry entry; |
62 | int complete; | |
63 | struct tree *tree; | |
8d8b9f62 | 64 | |
cd1f9c36 JH |
65 | tree = lookup_tree(sha1); |
66 | if (!tree) | |
8d8b9f62 | 67 | return 0; |
cd1f9c36 JH |
68 | if (tree->object.flags & SEEN) |
69 | return 1; | |
70 | if (tree->object.flags & INCOMPLETE) | |
71 | return 0; | |
72 | ||
6fda5e51 | 73 | if (!tree->buffer) { |
21666f1a | 74 | enum object_type type; |
6fda5e51 LT |
75 | unsigned long size; |
76 | void *data = read_sha1_file(sha1, &type, &size); | |
cd1f9c36 JH |
77 | if (!data) { |
78 | tree->object.flags |= INCOMPLETE; | |
8d8b9f62 JH |
79 | return 0; |
80 | } | |
cd1f9c36 | 81 | tree->buffer = data; |
6fda5e51 | 82 | tree->size = size; |
8d8b9f62 | 83 | } |
6fda5e51 | 84 | init_tree_desc(&desc, tree->buffer, tree->size); |
cd1f9c36 JH |
85 | complete = 1; |
86 | while (tree_entry(&desc, &entry)) { | |
87 | if (!has_sha1_file(entry.sha1) || | |
88 | (S_ISDIR(entry.mode) && !tree_is_complete(entry.sha1))) { | |
89 | tree->object.flags |= INCOMPLETE; | |
90 | complete = 0; | |
91 | } | |
92 | } | |
6e454b9a | 93 | free_tree_buffer(tree); |
8d8b9f62 | 94 | |
cd1f9c36 JH |
95 | if (complete) |
96 | tree->object.flags |= SEEN; | |
97 | return complete; | |
98 | } | |
1389d9dd JH |
99 | |
100 | static int commit_is_complete(struct commit *commit) | |
101 | { | |
102 | struct object_array study; | |
103 | struct object_array found; | |
104 | int is_incomplete = 0; | |
105 | int i; | |
106 | ||
107 | /* early return */ | |
108 | if (commit->object.flags & SEEN) | |
109 | return 1; | |
110 | if (commit->object.flags & INCOMPLETE) | |
111 | return 0; | |
112 | /* | |
113 | * Find all commits that are reachable and are not marked as | |
114 | * SEEN. Then make sure the trees and blobs contained are | |
115 | * complete. After that, mark these commits also as SEEN. | |
116 | * If some of the objects that are needed to complete this | |
117 | * commit are missing, mark this commit as INCOMPLETE. | |
118 | */ | |
119 | memset(&study, 0, sizeof(study)); | |
120 | memset(&found, 0, sizeof(found)); | |
121 | add_object_array(&commit->object, NULL, &study); | |
122 | add_object_array(&commit->object, NULL, &found); | |
123 | commit->object.flags |= STUDYING; | |
124 | while (study.nr) { | |
125 | struct commit *c; | |
126 | struct commit_list *parent; | |
127 | ||
128 | c = (struct commit *)study.objects[--study.nr].item; | |
129 | if (!c->object.parsed && !parse_object(c->object.sha1)) | |
130 | c->object.flags |= INCOMPLETE; | |
131 | ||
132 | if (c->object.flags & INCOMPLETE) { | |
133 | is_incomplete = 1; | |
134 | break; | |
135 | } | |
136 | else if (c->object.flags & SEEN) | |
137 | continue; | |
138 | for (parent = c->parents; parent; parent = parent->next) { | |
139 | struct commit *p = parent->item; | |
140 | if (p->object.flags & STUDYING) | |
141 | continue; | |
142 | p->object.flags |= STUDYING; | |
143 | add_object_array(&p->object, NULL, &study); | |
144 | add_object_array(&p->object, NULL, &found); | |
145 | } | |
146 | } | |
147 | if (!is_incomplete) { | |
cd1f9c36 JH |
148 | /* |
149 | * make sure all commits in "found" array have all the | |
1389d9dd JH |
150 | * necessary objects. |
151 | */ | |
cd1f9c36 | 152 | for (i = 0; i < found.nr; i++) { |
1389d9dd JH |
153 | struct commit *c = |
154 | (struct commit *)found.objects[i].item; | |
cd1f9c36 | 155 | if (!tree_is_complete(c->tree->object.sha1)) { |
1389d9dd | 156 | is_incomplete = 1; |
cd1f9c36 JH |
157 | c->object.flags |= INCOMPLETE; |
158 | } | |
1389d9dd JH |
159 | } |
160 | if (!is_incomplete) { | |
161 | /* mark all found commits as complete, iow SEEN */ | |
162 | for (i = 0; i < found.nr; i++) | |
163 | found.objects[i].item->flags |= SEEN; | |
164 | } | |
165 | } | |
166 | /* clear flags from the objects we traversed */ | |
167 | for (i = 0; i < found.nr; i++) | |
168 | found.objects[i].item->flags &= ~STUDYING; | |
169 | if (is_incomplete) | |
170 | commit->object.flags |= INCOMPLETE; | |
cd1f9c36 JH |
171 | else { |
172 | /* | |
173 | * If we come here, we have (1) traversed the ancestry chain | |
174 | * from the "commit" until we reach SEEN commits (which are | |
175 | * known to be complete), and (2) made sure that the commits | |
176 | * encountered during the above traversal refer to trees that | |
177 | * are complete. Which means that we know *all* the commits | |
178 | * we have seen during this process are complete. | |
179 | */ | |
180 | for (i = 0; i < found.nr; i++) | |
181 | found.objects[i].item->flags |= SEEN; | |
182 | } | |
1389d9dd JH |
183 | /* free object arrays */ |
184 | free(study.objects); | |
185 | free(found.objects); | |
186 | return !is_incomplete; | |
187 | } | |
188 | ||
4264dc15 JH |
189 | static int keep_entry(struct commit **it, unsigned char *sha1) |
190 | { | |
8d8b9f62 JH |
191 | struct commit *commit; |
192 | ||
4264dc15 JH |
193 | if (is_null_sha1(sha1)) |
194 | return 1; | |
8d8b9f62 JH |
195 | commit = lookup_commit_reference_gently(sha1, 1); |
196 | if (!commit) | |
197 | return 0; | |
198 | ||
1389d9dd JH |
199 | /* |
200 | * Make sure everything in this commit exists. | |
201 | * | |
202 | * We have walked all the objects reachable from the refs | |
203 | * and cache earlier. The commits reachable by this commit | |
204 | * must meet SEEN commits -- and then we should mark them as | |
205 | * SEEN as well. | |
206 | */ | |
207 | if (!commit_is_complete(commit)) | |
8d8b9f62 JH |
208 | return 0; |
209 | *it = commit; | |
210 | return 1; | |
4264dc15 JH |
211 | } |
212 | ||
b4ca1db9 JH |
213 | /* |
214 | * Starting from commits in the cb->mark_list, mark commits that are | |
215 | * reachable from them. Stop the traversal at commits older than | |
216 | * the expire_limit and queue them back, so that the caller can call | |
217 | * us again to restart the traversal with longer expire_limit. | |
218 | */ | |
ea7b4f6d | 219 | static void mark_reachable(struct expire_reflog_policy_cb *cb) |
666e07e6 | 220 | { |
b4ca1db9 JH |
221 | struct commit *commit; |
222 | struct commit_list *pending; | |
223 | unsigned long expire_limit = cb->mark_limit; | |
224 | struct commit_list *leftover = NULL; | |
666e07e6 | 225 | |
b4ca1db9 JH |
226 | for (pending = cb->mark_list; pending; pending = pending->next) |
227 | pending->item->object.flags &= ~REACHABLE; | |
494fbfe8 | 228 | |
b4ca1db9 | 229 | pending = cb->mark_list; |
494fbfe8 JH |
230 | while (pending) { |
231 | struct commit_list *entry = pending; | |
232 | struct commit_list *parent; | |
233 | pending = entry->next; | |
234 | commit = entry->item; | |
235 | free(entry); | |
236 | if (commit->object.flags & REACHABLE) | |
237 | continue; | |
238 | if (parse_commit(commit)) | |
239 | continue; | |
240 | commit->object.flags |= REACHABLE; | |
b4ca1db9 JH |
241 | if (commit->date < expire_limit) { |
242 | commit_list_insert(commit, &leftover); | |
494fbfe8 | 243 | continue; |
b4ca1db9 JH |
244 | } |
245 | commit->object.flags |= REACHABLE; | |
494fbfe8 JH |
246 | parent = commit->parents; |
247 | while (parent) { | |
248 | commit = parent->item; | |
249 | parent = parent->next; | |
250 | if (commit->object.flags & REACHABLE) | |
251 | continue; | |
252 | commit_list_insert(commit, &pending); | |
253 | } | |
254 | } | |
b4ca1db9 JH |
255 | cb->mark_list = leftover; |
256 | } | |
257 | ||
ea7b4f6d | 258 | static int unreachable(struct expire_reflog_policy_cb *cb, struct commit *commit, unsigned char *sha1) |
b4ca1db9 JH |
259 | { |
260 | /* | |
261 | * We may or may not have the commit yet - if not, look it | |
262 | * up using the supplied sha1. | |
263 | */ | |
264 | if (!commit) { | |
265 | if (is_null_sha1(sha1)) | |
266 | return 0; | |
267 | ||
268 | commit = lookup_commit_reference_gently(sha1, 1); | |
269 | ||
270 | /* Not a commit -- keep it */ | |
271 | if (!commit) | |
272 | return 0; | |
273 | } | |
274 | ||
275 | /* Reachable from the current ref? Don't prune. */ | |
276 | if (commit->object.flags & REACHABLE) | |
277 | return 0; | |
278 | ||
279 | if (cb->mark_list && cb->mark_limit) { | |
280 | cb->mark_limit = 0; /* dig down to the root */ | |
281 | mark_reachable(cb); | |
282 | } | |
283 | ||
284 | return !(commit->object.flags & REACHABLE); | |
494fbfe8 JH |
285 | } |
286 | ||
60cc3c40 MH |
287 | /* |
288 | * Return true iff the specified reflog entry should be expired. | |
289 | */ | |
290 | static int should_expire_reflog_ent(unsigned char *osha1, unsigned char *nsha1, | |
291 | const char *email, unsigned long timestamp, int tz, | |
292 | const char *message, void *cb_data) | |
4264dc15 | 293 | { |
ea7b4f6d | 294 | struct expire_reflog_policy_cb *cb = cb_data; |
4264dc15 JH |
295 | struct commit *old, *new; |
296 | ||
b729effb | 297 | if (timestamp < cb->cmd.expire_total) |
60cc3c40 | 298 | return 1; |
2b81fab2 | 299 | |
9bbaa6cc | 300 | old = new = NULL; |
b729effb | 301 | if (cb->cmd.stalefix && |
1389d9dd | 302 | (!keep_entry(&old, osha1) || !keep_entry(&new, nsha1))) |
60cc3c40 | 303 | return 1; |
4264dc15 | 304 | |
b729effb | 305 | if (timestamp < cb->cmd.expire_unreachable) { |
03cb91b1 | 306 | if (cb->unreachable_expire_kind == UE_ALWAYS) |
60cc3c40 | 307 | return 1; |
666e07e6 | 308 | if (unreachable(cb, old, osha1) || unreachable(cb, new, nsha1)) |
60cc3c40 | 309 | return 1; |
9bbaa6cc | 310 | } |
4264dc15 | 311 | |
b729effb | 312 | if (cb->cmd.recno && --(cb->cmd.recno) == 0) |
60cc3c40 MH |
313 | return 1; |
314 | ||
4264dc15 | 315 | return 0; |
60cc3c40 MH |
316 | } |
317 | ||
5bcad1bc | 318 | static int push_tip_to_list(const char *refname, const struct object_id *oid, |
ea7b4f6d | 319 | int flags, void *cb_data) |
03cb91b1 JH |
320 | { |
321 | struct commit_list **list = cb_data; | |
322 | struct commit *tip_commit; | |
323 | if (flags & REF_ISSYMREF) | |
324 | return 0; | |
5bcad1bc | 325 | tip_commit = lookup_commit_reference_gently(oid->hash, 1); |
03cb91b1 JH |
326 | if (!tip_commit) |
327 | return 0; | |
328 | commit_list_insert(tip_commit, list); | |
329 | return 0; | |
330 | } | |
331 | ||
c48a1635 MH |
332 | static void reflog_expiry_prepare(const char *refname, |
333 | const unsigned char *sha1, | |
b729effb | 334 | void *cb_data) |
c48a1635 | 335 | { |
b729effb MH |
336 | struct expire_reflog_policy_cb *cb = cb_data; |
337 | ||
338 | if (!cb->cmd.expire_unreachable || !strcmp(refname, "HEAD")) { | |
c48a1635 MH |
339 | cb->tip_commit = NULL; |
340 | cb->unreachable_expire_kind = UE_HEAD; | |
341 | } else { | |
342 | cb->tip_commit = lookup_commit_reference_gently(sha1, 1); | |
343 | if (!cb->tip_commit) | |
344 | cb->unreachable_expire_kind = UE_ALWAYS; | |
345 | else | |
346 | cb->unreachable_expire_kind = UE_NORMAL; | |
347 | } | |
348 | ||
b729effb | 349 | if (cb->cmd.expire_unreachable <= cb->cmd.expire_total) |
c48a1635 MH |
350 | cb->unreachable_expire_kind = UE_ALWAYS; |
351 | ||
352 | cb->mark_list = NULL; | |
353 | cb->tips = NULL; | |
354 | if (cb->unreachable_expire_kind != UE_ALWAYS) { | |
355 | if (cb->unreachable_expire_kind == UE_HEAD) { | |
356 | struct commit_list *elem; | |
2b2a5be3 | 357 | |
5bcad1bc | 358 | for_each_ref(push_tip_to_list, &cb->tips); |
c48a1635 MH |
359 | for (elem = cb->tips; elem; elem = elem->next) |
360 | commit_list_insert(elem->item, &cb->mark_list); | |
361 | } else { | |
362 | commit_list_insert(cb->tip_commit, &cb->mark_list); | |
363 | } | |
b729effb | 364 | cb->mark_limit = cb->cmd.expire_total; |
c48a1635 MH |
365 | mark_reachable(cb); |
366 | } | |
367 | } | |
368 | ||
b729effb | 369 | static void reflog_expiry_cleanup(void *cb_data) |
c48a1635 | 370 | { |
b729effb MH |
371 | struct expire_reflog_policy_cb *cb = cb_data; |
372 | ||
c48a1635 MH |
373 | if (cb->unreachable_expire_kind != UE_ALWAYS) { |
374 | if (cb->unreachable_expire_kind == UE_HEAD) { | |
375 | struct commit_list *elem; | |
376 | for (elem = cb->tips; elem; elem = elem->next) | |
377 | clear_commit_marks(elem->item, REACHABLE); | |
378 | free_commit_list(cb->tips); | |
379 | } else { | |
380 | clear_commit_marks(cb->tip_commit, REACHABLE); | |
381 | } | |
382 | } | |
383 | } | |
384 | ||
5bcad1bc | 385 | static int collect_reflog(const char *ref, const struct object_id *oid, int unused, void *cb_data) |
bda3a31c JH |
386 | { |
387 | struct collected_reflog *e; | |
388 | struct collect_reflog_cb *cb = cb_data; | |
389 | size_t namelen = strlen(ref); | |
390 | ||
391 | e = xmalloc(sizeof(*e) + namelen + 1); | |
5bcad1bc | 392 | hashcpy(e->sha1, oid->hash); |
bda3a31c JH |
393 | memcpy(e->reflog, ref, namelen + 1); |
394 | ALLOC_GROW(cb->e, cb->nr + 1, cb->alloc); | |
395 | cb->e[cb->nr++] = e; | |
396 | return 0; | |
397 | } | |
398 | ||
3cb22b8e JH |
399 | static struct reflog_expire_cfg { |
400 | struct reflog_expire_cfg *next; | |
401 | unsigned long expire_total; | |
402 | unsigned long expire_unreachable; | |
403 | size_t len; | |
404 | char pattern[FLEX_ARRAY]; | |
405 | } *reflog_expire_cfg, **reflog_expire_cfg_tail; | |
406 | ||
407 | static struct reflog_expire_cfg *find_cfg_ent(const char *pattern, size_t len) | |
4aec56d1 | 408 | { |
3cb22b8e JH |
409 | struct reflog_expire_cfg *ent; |
410 | ||
411 | if (!reflog_expire_cfg_tail) | |
412 | reflog_expire_cfg_tail = &reflog_expire_cfg; | |
413 | ||
414 | for (ent = reflog_expire_cfg; ent; ent = ent->next) | |
415 | if (ent->len == len && | |
416 | !memcmp(ent->pattern, pattern, len)) | |
417 | return ent; | |
418 | ||
419 | ent = xcalloc(1, (sizeof(*ent) + len)); | |
420 | memcpy(ent->pattern, pattern, len); | |
421 | ent->len = len; | |
422 | *reflog_expire_cfg_tail = ent; | |
423 | reflog_expire_cfg_tail = &(ent->next); | |
424 | return ent; | |
425 | } | |
426 | ||
427 | static int parse_expire_cfg_value(const char *var, const char *value, unsigned long *expire) | |
428 | { | |
429 | if (!value) | |
430 | return config_error_nonbool(var); | |
3d27b9b0 | 431 | if (parse_expiry_date(value, expire)) |
99885bc0 | 432 | return error(_("'%s' for '%s' is not a valid timestamp"), |
3d27b9b0 | 433 | value, var); |
3cb22b8e JH |
434 | return 0; |
435 | } | |
436 | ||
437 | /* expiry timer slot */ | |
438 | #define EXPIRE_TOTAL 01 | |
439 | #define EXPIRE_UNREACH 02 | |
440 | ||
441 | static int reflog_expire_config(const char *var, const char *value, void *cb) | |
442 | { | |
b3873c33 JK |
443 | const char *pattern, *key; |
444 | int pattern_len; | |
3cb22b8e JH |
445 | unsigned long expire; |
446 | int slot; | |
447 | struct reflog_expire_cfg *ent; | |
448 | ||
b3873c33 | 449 | if (parse_config_key(var, "gc", &pattern, &pattern_len, &key) < 0) |
3cb22b8e JH |
450 | return git_default_config(var, value, cb); |
451 | ||
b3873c33 | 452 | if (!strcmp(key, "reflogexpire")) { |
3cb22b8e JH |
453 | slot = EXPIRE_TOTAL; |
454 | if (parse_expire_cfg_value(var, value, &expire)) | |
455 | return -1; | |
b3873c33 | 456 | } else if (!strcmp(key, "reflogexpireunreachable")) { |
3cb22b8e JH |
457 | slot = EXPIRE_UNREACH; |
458 | if (parse_expire_cfg_value(var, value, &expire)) | |
459 | return -1; | |
460 | } else | |
461 | return git_default_config(var, value, cb); | |
462 | ||
b3873c33 | 463 | if (!pattern) { |
3cb22b8e JH |
464 | switch (slot) { |
465 | case EXPIRE_TOTAL: | |
466 | default_reflog_expire = expire; | |
467 | break; | |
468 | case EXPIRE_UNREACH: | |
469 | default_reflog_expire_unreachable = expire; | |
470 | break; | |
471 | } | |
4f342b96 JH |
472 | return 0; |
473 | } | |
3cb22b8e | 474 | |
b3873c33 | 475 | ent = find_cfg_ent(pattern, pattern_len); |
3cb22b8e JH |
476 | if (!ent) |
477 | return -1; | |
478 | switch (slot) { | |
479 | case EXPIRE_TOTAL: | |
480 | ent->expire_total = expire; | |
481 | break; | |
482 | case EXPIRE_UNREACH: | |
483 | ent->expire_unreachable = expire; | |
484 | break; | |
485 | } | |
486 | return 0; | |
487 | } | |
488 | ||
489 | static void set_reflog_expiry_param(struct cmd_reflog_expire_cb *cb, int slot, const char *ref) | |
490 | { | |
491 | struct reflog_expire_cfg *ent; | |
492 | ||
493 | if (slot == (EXPIRE_TOTAL|EXPIRE_UNREACH)) | |
494 | return; /* both given explicitly -- nothing to tweak */ | |
495 | ||
496 | for (ent = reflog_expire_cfg; ent; ent = ent->next) { | |
eb07894f | 497 | if (!wildmatch(ent->pattern, ref, 0, NULL)) { |
3cb22b8e JH |
498 | if (!(slot & EXPIRE_TOTAL)) |
499 | cb->expire_total = ent->expire_total; | |
500 | if (!(slot & EXPIRE_UNREACH)) | |
501 | cb->expire_unreachable = ent->expire_unreachable; | |
502 | return; | |
503 | } | |
504 | } | |
505 | ||
60bce2bb JH |
506 | /* |
507 | * If unconfigured, make stash never expire | |
508 | */ | |
509 | if (!strcmp(ref, "refs/stash")) { | |
510 | if (!(slot & EXPIRE_TOTAL)) | |
511 | cb->expire_total = 0; | |
512 | if (!(slot & EXPIRE_UNREACH)) | |
513 | cb->expire_unreachable = 0; | |
514 | return; | |
515 | } | |
516 | ||
3cb22b8e JH |
517 | /* Nothing matched -- use the default value */ |
518 | if (!(slot & EXPIRE_TOTAL)) | |
519 | cb->expire_total = default_reflog_expire; | |
520 | if (!(slot & EXPIRE_UNREACH)) | |
521 | cb->expire_unreachable = default_reflog_expire_unreachable; | |
4aec56d1 JH |
522 | } |
523 | ||
4264dc15 JH |
524 | static int cmd_reflog_expire(int argc, const char **argv, const char *prefix) |
525 | { | |
b729effb | 526 | struct expire_reflog_policy_cb cb; |
4264dc15 JH |
527 | unsigned long now = time(NULL); |
528 | int i, status, do_all; | |
3cb22b8e | 529 | int explicit_expiry = 0; |
aba56c89 | 530 | unsigned int flags = 0; |
4264dc15 | 531 | |
4a9f4394 AS |
532 | default_reflog_expire_unreachable = now - 30 * 24 * 3600; |
533 | default_reflog_expire = now - 90 * 24 * 3600; | |
ef90d6d4 | 534 | git_config(reflog_expire_config, NULL); |
4aec56d1 | 535 | |
4264dc15 JH |
536 | save_commit_buffer = 0; |
537 | do_all = status = 0; | |
538 | memset(&cb, 0, sizeof(cb)); | |
4aec56d1 | 539 | |
b729effb MH |
540 | cb.cmd.expire_total = default_reflog_expire; |
541 | cb.cmd.expire_unreachable = default_reflog_expire_unreachable; | |
4264dc15 JH |
542 | |
543 | for (i = 1; i < argc; i++) { | |
544 | const char *arg = argv[i]; | |
545 | if (!strcmp(arg, "--dry-run") || !strcmp(arg, "-n")) | |
98f31d85 | 546 | flags |= EXPIRE_REFLOGS_DRY_RUN; |
59556548 | 547 | else if (starts_with(arg, "--expire=")) { |
b729effb | 548 | if (parse_expiry_date(arg + 9, &cb.cmd.expire_total)) |
3d27b9b0 | 549 | die(_("'%s' is not a valid timestamp"), arg); |
3cb22b8e JH |
550 | explicit_expiry |= EXPIRE_TOTAL; |
551 | } | |
59556548 | 552 | else if (starts_with(arg, "--expire-unreachable=")) { |
b729effb | 553 | if (parse_expiry_date(arg + 21, &cb.cmd.expire_unreachable)) |
3d27b9b0 | 554 | die(_("'%s' is not a valid timestamp"), arg); |
3cb22b8e JH |
555 | explicit_expiry |= EXPIRE_UNREACH; |
556 | } | |
1389d9dd | 557 | else if (!strcmp(arg, "--stale-fix")) |
b729effb | 558 | cb.cmd.stalefix = 1; |
2b81fab2 | 559 | else if (!strcmp(arg, "--rewrite")) |
553daf13 | 560 | flags |= EXPIRE_REFLOGS_REWRITE; |
55f10565 | 561 | else if (!strcmp(arg, "--updateref")) |
c4c4fbf8 | 562 | flags |= EXPIRE_REFLOGS_UPDATE_REF; |
4264dc15 JH |
563 | else if (!strcmp(arg, "--all")) |
564 | do_all = 1; | |
1389d9dd | 565 | else if (!strcmp(arg, "--verbose")) |
bc11155c | 566 | flags |= EXPIRE_REFLOGS_VERBOSE; |
4264dc15 JH |
567 | else if (!strcmp(arg, "--")) { |
568 | i++; | |
569 | break; | |
570 | } | |
571 | else if (arg[0] == '-') | |
572 | usage(reflog_expire_usage); | |
573 | else | |
574 | break; | |
575 | } | |
3cb22b8e JH |
576 | |
577 | /* | |
578 | * We can trust the commits and objects reachable from refs | |
579 | * even in older repository. We cannot trust what's reachable | |
580 | * from reflog if the repository was pruned with older git. | |
581 | */ | |
b729effb MH |
582 | if (cb.cmd.stalefix) { |
583 | init_revisions(&cb.cmd.revs, prefix); | |
bc11155c | 584 | if (flags & EXPIRE_REFLOGS_VERBOSE) |
1389d9dd | 585 | printf("Marking reachable objects..."); |
b729effb | 586 | mark_reachable_objects(&cb.cmd.revs, 0, 0, NULL); |
bc11155c | 587 | if (flags & EXPIRE_REFLOGS_VERBOSE) |
1389d9dd JH |
588 | putchar('\n'); |
589 | } | |
590 | ||
bda3a31c JH |
591 | if (do_all) { |
592 | struct collect_reflog_cb collected; | |
593 | int i; | |
594 | ||
595 | memset(&collected, 0, sizeof(collected)); | |
5bcad1bc | 596 | for_each_reflog(collect_reflog, &collected); |
bda3a31c JH |
597 | for (i = 0; i < collected.nr; i++) { |
598 | struct collected_reflog *e = collected.e[i]; | |
b729effb | 599 | set_reflog_expiry_param(&cb.cmd, explicit_expiry, e->reflog); |
fa5b1830 MH |
600 | status |= reflog_expire(e->reflog, e->sha1, flags, |
601 | reflog_expiry_prepare, | |
602 | should_expire_reflog_ent, | |
603 | reflog_expiry_cleanup, | |
604 | &cb); | |
bda3a31c JH |
605 | free(e); |
606 | } | |
607 | free(collected.e); | |
608 | } | |
609 | ||
90fb46ec PB |
610 | for (; i < argc; i++) { |
611 | char *ref; | |
4264dc15 | 612 | unsigned char sha1[20]; |
90fb46ec PB |
613 | if (!dwim_log(argv[i], strlen(argv[i]), sha1, &ref)) { |
614 | status |= error("%s points nowhere!", argv[i]); | |
4264dc15 JH |
615 | continue; |
616 | } | |
b729effb | 617 | set_reflog_expiry_param(&cb.cmd, explicit_expiry, ref); |
fa5b1830 MH |
618 | status |= reflog_expire(ref, sha1, flags, |
619 | reflog_expiry_prepare, | |
620 | should_expire_reflog_ent, | |
621 | reflog_expiry_cleanup, | |
622 | &cb); | |
4264dc15 JH |
623 | } |
624 | return status; | |
625 | } | |
626 | ||
552cecc2 JS |
627 | static int count_reflog_ent(unsigned char *osha1, unsigned char *nsha1, |
628 | const char *email, unsigned long timestamp, int tz, | |
629 | const char *message, void *cb_data) | |
630 | { | |
b729effb MH |
631 | struct expire_reflog_policy_cb *cb = cb_data; |
632 | if (!cb->cmd.expire_total || timestamp < cb->cmd.expire_total) | |
633 | cb->cmd.recno++; | |
552cecc2 JS |
634 | return 0; |
635 | } | |
636 | ||
637 | static int cmd_reflog_delete(int argc, const char **argv, const char *prefix) | |
638 | { | |
b729effb | 639 | struct expire_reflog_policy_cb cb; |
552cecc2 | 640 | int i, status = 0; |
aba56c89 | 641 | unsigned int flags = 0; |
552cecc2 | 642 | |
552cecc2 JS |
643 | memset(&cb, 0, sizeof(cb)); |
644 | ||
645 | for (i = 1; i < argc; i++) { | |
3c386aa3 BC |
646 | const char *arg = argv[i]; |
647 | if (!strcmp(arg, "--dry-run") || !strcmp(arg, "-n")) | |
98f31d85 | 648 | flags |= EXPIRE_REFLOGS_DRY_RUN; |
2b81fab2 | 649 | else if (!strcmp(arg, "--rewrite")) |
553daf13 | 650 | flags |= EXPIRE_REFLOGS_REWRITE; |
55f10565 | 651 | else if (!strcmp(arg, "--updateref")) |
c4c4fbf8 | 652 | flags |= EXPIRE_REFLOGS_UPDATE_REF; |
3c386aa3 | 653 | else if (!strcmp(arg, "--verbose")) |
bc11155c | 654 | flags |= EXPIRE_REFLOGS_VERBOSE; |
3c386aa3 BC |
655 | else if (!strcmp(arg, "--")) { |
656 | i++; | |
657 | break; | |
658 | } | |
659 | else if (arg[0] == '-') | |
660 | usage(reflog_delete_usage); | |
661 | else | |
662 | break; | |
663 | } | |
664 | ||
665 | if (argc - i < 1) | |
666 | return error("Nothing to delete?"); | |
667 | ||
668 | for ( ; i < argc; i++) { | |
552cecc2 JS |
669 | const char *spec = strstr(argv[i], "@{"); |
670 | unsigned char sha1[20]; | |
671 | char *ep, *ref; | |
672 | int recno; | |
673 | ||
674 | if (!spec) { | |
cb97cc9f | 675 | status |= error("Not a reflog: %s", argv[i]); |
552cecc2 JS |
676 | continue; |
677 | } | |
678 | ||
55beff4f JH |
679 | if (!dwim_log(argv[i], spec - argv[i], sha1, &ref)) { |
680 | status |= error("no reflog for '%s'", argv[i]); | |
552cecc2 JS |
681 | continue; |
682 | } | |
683 | ||
684 | recno = strtoul(spec + 2, &ep, 10); | |
685 | if (*ep == '}') { | |
b729effb | 686 | cb.cmd.recno = -recno; |
552cecc2 JS |
687 | for_each_reflog_ent(ref, count_reflog_ent, &cb); |
688 | } else { | |
b729effb | 689 | cb.cmd.expire_total = approxidate(spec + 2); |
552cecc2 | 690 | for_each_reflog_ent(ref, count_reflog_ent, &cb); |
b729effb | 691 | cb.cmd.expire_total = 0; |
552cecc2 JS |
692 | } |
693 | ||
fa5b1830 MH |
694 | status |= reflog_expire(ref, sha1, flags, |
695 | reflog_expiry_prepare, | |
696 | should_expire_reflog_ent, | |
697 | reflog_expiry_cleanup, | |
698 | &cb); | |
552cecc2 JS |
699 | free(ref); |
700 | } | |
701 | return status; | |
702 | } | |
703 | ||
afcb2e7a DT |
704 | static int cmd_reflog_exists(int argc, const char **argv, const char *prefix) |
705 | { | |
706 | int i, start = 0; | |
707 | ||
708 | for (i = 1; i < argc; i++) { | |
709 | const char *arg = argv[i]; | |
710 | if (!strcmp(arg, "--")) { | |
711 | i++; | |
712 | break; | |
713 | } | |
714 | else if (arg[0] == '-') | |
715 | usage(reflog_exists_usage); | |
716 | else | |
717 | break; | |
718 | } | |
719 | ||
720 | start = i; | |
721 | ||
722 | if (argc - start != 1) | |
723 | usage(reflog_exists_usage); | |
724 | ||
725 | if (check_refname_format(argv[start], REFNAME_ALLOW_ONELEVEL)) | |
726 | die("invalid ref format: %s", argv[start]); | |
727 | return !reflog_exists(argv[start]); | |
728 | } | |
729 | ||
1389d9dd JH |
730 | /* |
731 | * main "reflog" | |
732 | */ | |
733 | ||
4264dc15 | 734 | static const char reflog_usage[] = |
afcb2e7a | 735 | "git reflog [ show | expire | delete | exists ]"; |
4264dc15 JH |
736 | |
737 | int cmd_reflog(int argc, const char **argv, const char *prefix) | |
738 | { | |
99caeed0 JN |
739 | if (argc > 1 && !strcmp(argv[1], "-h")) |
740 | usage(reflog_usage); | |
741 | ||
cf39f54e LT |
742 | /* With no command, we default to showing it. */ |
743 | if (argc < 2 || *argv[1] == '-') | |
744 | return cmd_log_reflog(argc, argv, prefix); | |
745 | ||
746 | if (!strcmp(argv[1], "show")) | |
747 | return cmd_log_reflog(argc - 1, argv + 1, prefix); | |
748 | ||
749 | if (!strcmp(argv[1], "expire")) | |
4264dc15 | 750 | return cmd_reflog_expire(argc - 1, argv + 1, prefix); |
cf39f54e | 751 | |
552cecc2 JS |
752 | if (!strcmp(argv[1], "delete")) |
753 | return cmd_reflog_delete(argc - 1, argv + 1, prefix); | |
754 | ||
afcb2e7a DT |
755 | if (!strcmp(argv[1], "exists")) |
756 | return cmd_reflog_exists(argc - 1, argv + 1, prefix); | |
757 | ||
bf01d4a3 | 758 | return cmd_log_reflog(argc, argv, prefix); |
4264dc15 | 759 | } |