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Commit | Line | Data |
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4264dc15 JH |
1 | #include "cache.h" |
2 | #include "builtin.h" | |
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 | ||
11 | /* | |
12 | * reflog expire | |
13 | */ | |
14 | ||
15 | static const char reflog_expire_usage[] = | |
1b1dd23f | 16 | "git reflog (show|expire) [--verbose] [--dry-run] [--stale-fix] [--expire=<time>] [--expire-unreachable=<time>] [--all] <refs>..."; |
3c386aa3 | 17 | static const char reflog_delete_usage[] = |
1b1dd23f | 18 | "git reflog delete [--verbose] [--dry-run] [--rewrite] [--updateref] <refs>..."; |
4264dc15 | 19 | |
4aec56d1 JH |
20 | static unsigned long default_reflog_expire; |
21 | static unsigned long default_reflog_expire_unreachable; | |
22 | ||
1389d9dd JH |
23 | struct cmd_reflog_expire_cb { |
24 | struct rev_info revs; | |
25 | int dry_run; | |
26 | int stalefix; | |
2b81fab2 | 27 | int rewrite; |
55f10565 | 28 | int updateref; |
1389d9dd JH |
29 | int verbose; |
30 | unsigned long expire_total; | |
31 | unsigned long expire_unreachable; | |
552cecc2 | 32 | int recno; |
1389d9dd JH |
33 | }; |
34 | ||
4264dc15 JH |
35 | struct expire_reflog_cb { |
36 | FILE *newlog; | |
37 | const char *ref; | |
38 | struct commit *ref_commit; | |
b4ca1db9 JH |
39 | struct commit_list *mark_list; |
40 | unsigned long mark_limit; | |
1389d9dd | 41 | struct cmd_reflog_expire_cb *cmd; |
2b81fab2 | 42 | unsigned char last_kept_sha1[20]; |
4264dc15 JH |
43 | }; |
44 | ||
bda3a31c JH |
45 | struct collected_reflog { |
46 | unsigned char sha1[20]; | |
47 | char reflog[FLEX_ARRAY]; | |
48 | }; | |
49 | struct collect_reflog_cb { | |
50 | struct collected_reflog **e; | |
51 | int alloc; | |
52 | int nr; | |
53 | }; | |
54 | ||
cd1f9c36 JH |
55 | #define INCOMPLETE (1u<<10) |
56 | #define STUDYING (1u<<11) | |
494fbfe8 | 57 | #define REACHABLE (1u<<12) |
cd1f9c36 | 58 | |
8d8b9f62 JH |
59 | static int tree_is_complete(const unsigned char *sha1) |
60 | { | |
61 | struct tree_desc desc; | |
cd1f9c36 JH |
62 | struct name_entry entry; |
63 | int complete; | |
64 | struct tree *tree; | |
8d8b9f62 | 65 | |
cd1f9c36 JH |
66 | tree = lookup_tree(sha1); |
67 | if (!tree) | |
8d8b9f62 | 68 | return 0; |
cd1f9c36 JH |
69 | if (tree->object.flags & SEEN) |
70 | return 1; | |
71 | if (tree->object.flags & INCOMPLETE) | |
72 | return 0; | |
73 | ||
6fda5e51 | 74 | if (!tree->buffer) { |
21666f1a | 75 | enum object_type type; |
6fda5e51 LT |
76 | unsigned long size; |
77 | void *data = read_sha1_file(sha1, &type, &size); | |
cd1f9c36 JH |
78 | if (!data) { |
79 | tree->object.flags |= INCOMPLETE; | |
8d8b9f62 JH |
80 | return 0; |
81 | } | |
cd1f9c36 | 82 | tree->buffer = data; |
6fda5e51 | 83 | tree->size = size; |
8d8b9f62 | 84 | } |
6fda5e51 | 85 | init_tree_desc(&desc, tree->buffer, tree->size); |
cd1f9c36 JH |
86 | complete = 1; |
87 | while (tree_entry(&desc, &entry)) { | |
88 | if (!has_sha1_file(entry.sha1) || | |
89 | (S_ISDIR(entry.mode) && !tree_is_complete(entry.sha1))) { | |
90 | tree->object.flags |= INCOMPLETE; | |
91 | complete = 0; | |
92 | } | |
93 | } | |
94 | free(tree->buffer); | |
95 | tree->buffer = NULL; | |
8d8b9f62 | 96 | |
cd1f9c36 JH |
97 | if (complete) |
98 | tree->object.flags |= SEEN; | |
99 | return complete; | |
100 | } | |
1389d9dd JH |
101 | |
102 | static int commit_is_complete(struct commit *commit) | |
103 | { | |
104 | struct object_array study; | |
105 | struct object_array found; | |
106 | int is_incomplete = 0; | |
107 | int i; | |
108 | ||
109 | /* early return */ | |
110 | if (commit->object.flags & SEEN) | |
111 | return 1; | |
112 | if (commit->object.flags & INCOMPLETE) | |
113 | return 0; | |
114 | /* | |
115 | * Find all commits that are reachable and are not marked as | |
116 | * SEEN. Then make sure the trees and blobs contained are | |
117 | * complete. After that, mark these commits also as SEEN. | |
118 | * If some of the objects that are needed to complete this | |
119 | * commit are missing, mark this commit as INCOMPLETE. | |
120 | */ | |
121 | memset(&study, 0, sizeof(study)); | |
122 | memset(&found, 0, sizeof(found)); | |
123 | add_object_array(&commit->object, NULL, &study); | |
124 | add_object_array(&commit->object, NULL, &found); | |
125 | commit->object.flags |= STUDYING; | |
126 | while (study.nr) { | |
127 | struct commit *c; | |
128 | struct commit_list *parent; | |
129 | ||
130 | c = (struct commit *)study.objects[--study.nr].item; | |
131 | if (!c->object.parsed && !parse_object(c->object.sha1)) | |
132 | c->object.flags |= INCOMPLETE; | |
133 | ||
134 | if (c->object.flags & INCOMPLETE) { | |
135 | is_incomplete = 1; | |
136 | break; | |
137 | } | |
138 | else if (c->object.flags & SEEN) | |
139 | continue; | |
140 | for (parent = c->parents; parent; parent = parent->next) { | |
141 | struct commit *p = parent->item; | |
142 | if (p->object.flags & STUDYING) | |
143 | continue; | |
144 | p->object.flags |= STUDYING; | |
145 | add_object_array(&p->object, NULL, &study); | |
146 | add_object_array(&p->object, NULL, &found); | |
147 | } | |
148 | } | |
149 | if (!is_incomplete) { | |
cd1f9c36 JH |
150 | /* |
151 | * make sure all commits in "found" array have all the | |
1389d9dd JH |
152 | * necessary objects. |
153 | */ | |
cd1f9c36 | 154 | for (i = 0; i < found.nr; i++) { |
1389d9dd JH |
155 | struct commit *c = |
156 | (struct commit *)found.objects[i].item; | |
cd1f9c36 | 157 | if (!tree_is_complete(c->tree->object.sha1)) { |
1389d9dd | 158 | is_incomplete = 1; |
cd1f9c36 JH |
159 | c->object.flags |= INCOMPLETE; |
160 | } | |
1389d9dd JH |
161 | } |
162 | if (!is_incomplete) { | |
163 | /* mark all found commits as complete, iow SEEN */ | |
164 | for (i = 0; i < found.nr; i++) | |
165 | found.objects[i].item->flags |= SEEN; | |
166 | } | |
167 | } | |
168 | /* clear flags from the objects we traversed */ | |
169 | for (i = 0; i < found.nr; i++) | |
170 | found.objects[i].item->flags &= ~STUDYING; | |
171 | if (is_incomplete) | |
172 | commit->object.flags |= INCOMPLETE; | |
cd1f9c36 JH |
173 | else { |
174 | /* | |
175 | * If we come here, we have (1) traversed the ancestry chain | |
176 | * from the "commit" until we reach SEEN commits (which are | |
177 | * known to be complete), and (2) made sure that the commits | |
178 | * encountered during the above traversal refer to trees that | |
179 | * are complete. Which means that we know *all* the commits | |
180 | * we have seen during this process are complete. | |
181 | */ | |
182 | for (i = 0; i < found.nr; i++) | |
183 | found.objects[i].item->flags |= SEEN; | |
184 | } | |
1389d9dd JH |
185 | /* free object arrays */ |
186 | free(study.objects); | |
187 | free(found.objects); | |
188 | return !is_incomplete; | |
189 | } | |
190 | ||
4264dc15 JH |
191 | static int keep_entry(struct commit **it, unsigned char *sha1) |
192 | { | |
8d8b9f62 JH |
193 | struct commit *commit; |
194 | ||
4264dc15 JH |
195 | if (is_null_sha1(sha1)) |
196 | return 1; | |
8d8b9f62 JH |
197 | commit = lookup_commit_reference_gently(sha1, 1); |
198 | if (!commit) | |
199 | return 0; | |
200 | ||
1389d9dd JH |
201 | /* |
202 | * Make sure everything in this commit exists. | |
203 | * | |
204 | * We have walked all the objects reachable from the refs | |
205 | * and cache earlier. The commits reachable by this commit | |
206 | * must meet SEEN commits -- and then we should mark them as | |
207 | * SEEN as well. | |
208 | */ | |
209 | if (!commit_is_complete(commit)) | |
8d8b9f62 JH |
210 | return 0; |
211 | *it = commit; | |
212 | return 1; | |
4264dc15 JH |
213 | } |
214 | ||
b4ca1db9 JH |
215 | /* |
216 | * Starting from commits in the cb->mark_list, mark commits that are | |
217 | * reachable from them. Stop the traversal at commits older than | |
218 | * the expire_limit and queue them back, so that the caller can call | |
219 | * us again to restart the traversal with longer expire_limit. | |
220 | */ | |
221 | static void mark_reachable(struct expire_reflog_cb *cb) | |
666e07e6 | 222 | { |
b4ca1db9 JH |
223 | struct commit *commit; |
224 | struct commit_list *pending; | |
225 | unsigned long expire_limit = cb->mark_limit; | |
226 | struct commit_list *leftover = NULL; | |
666e07e6 | 227 | |
b4ca1db9 JH |
228 | for (pending = cb->mark_list; pending; pending = pending->next) |
229 | pending->item->object.flags &= ~REACHABLE; | |
494fbfe8 | 230 | |
b4ca1db9 | 231 | pending = cb->mark_list; |
494fbfe8 JH |
232 | while (pending) { |
233 | struct commit_list *entry = pending; | |
234 | struct commit_list *parent; | |
235 | pending = entry->next; | |
236 | commit = entry->item; | |
237 | free(entry); | |
238 | if (commit->object.flags & REACHABLE) | |
239 | continue; | |
240 | if (parse_commit(commit)) | |
241 | continue; | |
242 | commit->object.flags |= REACHABLE; | |
b4ca1db9 JH |
243 | if (commit->date < expire_limit) { |
244 | commit_list_insert(commit, &leftover); | |
494fbfe8 | 245 | continue; |
b4ca1db9 JH |
246 | } |
247 | commit->object.flags |= REACHABLE; | |
494fbfe8 JH |
248 | parent = commit->parents; |
249 | while (parent) { | |
250 | commit = parent->item; | |
251 | parent = parent->next; | |
252 | if (commit->object.flags & REACHABLE) | |
253 | continue; | |
254 | commit_list_insert(commit, &pending); | |
255 | } | |
256 | } | |
b4ca1db9 JH |
257 | cb->mark_list = leftover; |
258 | } | |
259 | ||
260 | static int unreachable(struct expire_reflog_cb *cb, struct commit *commit, unsigned char *sha1) | |
261 | { | |
262 | /* | |
263 | * We may or may not have the commit yet - if not, look it | |
264 | * up using the supplied sha1. | |
265 | */ | |
266 | if (!commit) { | |
267 | if (is_null_sha1(sha1)) | |
268 | return 0; | |
269 | ||
270 | commit = lookup_commit_reference_gently(sha1, 1); | |
271 | ||
272 | /* Not a commit -- keep it */ | |
273 | if (!commit) | |
274 | return 0; | |
275 | } | |
276 | ||
277 | /* Reachable from the current ref? Don't prune. */ | |
278 | if (commit->object.flags & REACHABLE) | |
279 | return 0; | |
280 | ||
281 | if (cb->mark_list && cb->mark_limit) { | |
282 | cb->mark_limit = 0; /* dig down to the root */ | |
283 | mark_reachable(cb); | |
284 | } | |
285 | ||
286 | return !(commit->object.flags & REACHABLE); | |
494fbfe8 JH |
287 | } |
288 | ||
4264dc15 | 289 | static int expire_reflog_ent(unsigned char *osha1, unsigned char *nsha1, |
883d60fa JS |
290 | const char *email, unsigned long timestamp, int tz, |
291 | const char *message, void *cb_data) | |
4264dc15 JH |
292 | { |
293 | struct expire_reflog_cb *cb = cb_data; | |
4264dc15 JH |
294 | struct commit *old, *new; |
295 | ||
1389d9dd | 296 | if (timestamp < cb->cmd->expire_total) |
4264dc15 JH |
297 | goto prune; |
298 | ||
2b81fab2 BC |
299 | if (cb->cmd->rewrite) |
300 | osha1 = cb->last_kept_sha1; | |
301 | ||
9bbaa6cc | 302 | old = new = NULL; |
1389d9dd JH |
303 | if (cb->cmd->stalefix && |
304 | (!keep_entry(&old, osha1) || !keep_entry(&new, nsha1))) | |
4264dc15 JH |
305 | goto prune; |
306 | ||
9bbaa6cc JH |
307 | if (timestamp < cb->cmd->expire_unreachable) { |
308 | if (!cb->ref_commit) | |
309 | goto prune; | |
666e07e6 | 310 | if (unreachable(cb, old, osha1) || unreachable(cb, new, nsha1)) |
9bbaa6cc JH |
311 | goto prune; |
312 | } | |
4264dc15 | 313 | |
552cecc2 JS |
314 | if (cb->cmd->recno && --(cb->cmd->recno) == 0) |
315 | goto prune; | |
316 | ||
883d60fa JS |
317 | if (cb->newlog) { |
318 | char sign = (tz < 0) ? '-' : '+'; | |
319 | int zone = (tz < 0) ? (-tz) : tz; | |
320 | fprintf(cb->newlog, "%s %s %s %lu %c%04d\t%s", | |
321 | sha1_to_hex(osha1), sha1_to_hex(nsha1), | |
322 | email, timestamp, sign, zone, | |
323 | message); | |
2b81fab2 | 324 | hashcpy(cb->last_kept_sha1, nsha1); |
883d60fa | 325 | } |
1389d9dd | 326 | if (cb->cmd->verbose) |
883d60fa | 327 | printf("keep %s", message); |
4264dc15 JH |
328 | return 0; |
329 | prune: | |
1389d9dd | 330 | if (!cb->newlog || cb->cmd->verbose) |
883d60fa | 331 | printf("%sprune %s", cb->newlog ? "" : "would ", message); |
4264dc15 JH |
332 | return 0; |
333 | } | |
334 | ||
4264dc15 JH |
335 | static int expire_reflog(const char *ref, const unsigned char *sha1, int unused, void *cb_data) |
336 | { | |
337 | struct cmd_reflog_expire_cb *cmd = cb_data; | |
338 | struct expire_reflog_cb cb; | |
339 | struct ref_lock *lock; | |
9a13f0b7 | 340 | char *log_file, *newlog_path = NULL; |
4264dc15 JH |
341 | int status = 0; |
342 | ||
4264dc15 | 343 | memset(&cb, 0, sizeof(cb)); |
3cb22b8e JH |
344 | |
345 | /* | |
346 | * we take the lock for the ref itself to prevent it from | |
4264dc15 JH |
347 | * getting updated. |
348 | */ | |
68db31cc | 349 | lock = lock_any_ref_for_update(ref, sha1, 0); |
4264dc15 JH |
350 | if (!lock) |
351 | return error("cannot lock ref '%s'", ref); | |
a4f34cbb | 352 | log_file = git_pathdup("logs/%s", ref); |
9a13f0b7 | 353 | if (!file_exists(log_file)) |
4264dc15 JH |
354 | goto finish; |
355 | if (!cmd->dry_run) { | |
a4f34cbb | 356 | newlog_path = git_pathdup("logs/%s.lock", ref); |
4264dc15 JH |
357 | cb.newlog = fopen(newlog_path, "w"); |
358 | } | |
359 | ||
360 | cb.ref_commit = lookup_commit_reference_gently(sha1, 1); | |
4264dc15 | 361 | cb.ref = ref; |
1389d9dd | 362 | cb.cmd = cmd; |
b4ca1db9 JH |
363 | if (cb.ref_commit) { |
364 | cb.mark_list = NULL; | |
365 | commit_list_insert(cb.ref_commit, &cb.mark_list); | |
366 | cb.mark_limit = cmd->expire_total; | |
367 | mark_reachable(&cb); | |
368 | } | |
4264dc15 | 369 | for_each_reflog_ent(ref, expire_reflog_ent, &cb); |
494fbfe8 JH |
370 | if (cb.ref_commit) |
371 | clear_commit_marks(cb.ref_commit, REACHABLE); | |
4264dc15 JH |
372 | finish: |
373 | if (cb.newlog) { | |
4cd883d7 | 374 | if (fclose(cb.newlog)) { |
4264dc15 JH |
375 | status |= error("%s: %s", strerror(errno), |
376 | newlog_path); | |
4cd883d7 | 377 | unlink(newlog_path); |
55f10565 BC |
378 | } else if (cmd->updateref && |
379 | (write_in_full(lock->lock_fd, | |
380 | sha1_to_hex(cb.last_kept_sha1), 40) != 40 || | |
2b7ca830 | 381 | write_str_in_full(lock->lock_fd, "\n") != 1 || |
55f10565 BC |
382 | close_ref(lock) < 0)) { |
383 | status |= error("Couldn't write %s", | |
384 | lock->lk->filename); | |
385 | unlink(newlog_path); | |
4cd883d7 | 386 | } else if (rename(newlog_path, log_file)) { |
4264dc15 | 387 | status |= error("cannot rename %s to %s", |
9a13f0b7 | 388 | newlog_path, log_file); |
4264dc15 | 389 | unlink(newlog_path); |
55f10565 BC |
390 | } else if (cmd->updateref && commit_ref(lock)) { |
391 | status |= error("Couldn't set %s", lock->ref_name); | |
336d09da PH |
392 | } else { |
393 | adjust_shared_perm(log_file); | |
4264dc15 JH |
394 | } |
395 | } | |
396 | free(newlog_path); | |
9a13f0b7 | 397 | free(log_file); |
4264dc15 JH |
398 | unlock_ref(lock); |
399 | return status; | |
400 | } | |
401 | ||
bda3a31c JH |
402 | static int collect_reflog(const char *ref, const unsigned char *sha1, int unused, void *cb_data) |
403 | { | |
404 | struct collected_reflog *e; | |
405 | struct collect_reflog_cb *cb = cb_data; | |
406 | size_t namelen = strlen(ref); | |
407 | ||
408 | e = xmalloc(sizeof(*e) + namelen + 1); | |
409 | hashcpy(e->sha1, sha1); | |
410 | memcpy(e->reflog, ref, namelen + 1); | |
411 | ALLOC_GROW(cb->e, cb->nr + 1, cb->alloc); | |
412 | cb->e[cb->nr++] = e; | |
413 | return 0; | |
414 | } | |
415 | ||
3cb22b8e JH |
416 | static struct reflog_expire_cfg { |
417 | struct reflog_expire_cfg *next; | |
418 | unsigned long expire_total; | |
419 | unsigned long expire_unreachable; | |
420 | size_t len; | |
421 | char pattern[FLEX_ARRAY]; | |
422 | } *reflog_expire_cfg, **reflog_expire_cfg_tail; | |
423 | ||
424 | static struct reflog_expire_cfg *find_cfg_ent(const char *pattern, size_t len) | |
4aec56d1 | 425 | { |
3cb22b8e JH |
426 | struct reflog_expire_cfg *ent; |
427 | ||
428 | if (!reflog_expire_cfg_tail) | |
429 | reflog_expire_cfg_tail = &reflog_expire_cfg; | |
430 | ||
431 | for (ent = reflog_expire_cfg; ent; ent = ent->next) | |
432 | if (ent->len == len && | |
433 | !memcmp(ent->pattern, pattern, len)) | |
434 | return ent; | |
435 | ||
436 | ent = xcalloc(1, (sizeof(*ent) + len)); | |
437 | memcpy(ent->pattern, pattern, len); | |
438 | ent->len = len; | |
439 | *reflog_expire_cfg_tail = ent; | |
440 | reflog_expire_cfg_tail = &(ent->next); | |
441 | return ent; | |
442 | } | |
443 | ||
444 | static int parse_expire_cfg_value(const char *var, const char *value, unsigned long *expire) | |
445 | { | |
446 | if (!value) | |
447 | return config_error_nonbool(var); | |
448 | if (!strcmp(value, "never") || !strcmp(value, "false")) { | |
449 | *expire = 0; | |
4f342b96 JH |
450 | return 0; |
451 | } | |
3cb22b8e JH |
452 | *expire = approxidate(value); |
453 | return 0; | |
454 | } | |
455 | ||
456 | /* expiry timer slot */ | |
457 | #define EXPIRE_TOTAL 01 | |
458 | #define EXPIRE_UNREACH 02 | |
459 | ||
460 | static int reflog_expire_config(const char *var, const char *value, void *cb) | |
461 | { | |
462 | const char *lastdot = strrchr(var, '.'); | |
463 | unsigned long expire; | |
464 | int slot; | |
465 | struct reflog_expire_cfg *ent; | |
466 | ||
467 | if (!lastdot || prefixcmp(var, "gc.")) | |
468 | return git_default_config(var, value, cb); | |
469 | ||
470 | if (!strcmp(lastdot, ".reflogexpire")) { | |
471 | slot = EXPIRE_TOTAL; | |
472 | if (parse_expire_cfg_value(var, value, &expire)) | |
473 | return -1; | |
474 | } else if (!strcmp(lastdot, ".reflogexpireunreachable")) { | |
475 | slot = EXPIRE_UNREACH; | |
476 | if (parse_expire_cfg_value(var, value, &expire)) | |
477 | return -1; | |
478 | } else | |
479 | return git_default_config(var, value, cb); | |
480 | ||
481 | if (lastdot == var + 2) { | |
482 | switch (slot) { | |
483 | case EXPIRE_TOTAL: | |
484 | default_reflog_expire = expire; | |
485 | break; | |
486 | case EXPIRE_UNREACH: | |
487 | default_reflog_expire_unreachable = expire; | |
488 | break; | |
489 | } | |
4f342b96 JH |
490 | return 0; |
491 | } | |
3cb22b8e JH |
492 | |
493 | ent = find_cfg_ent(var + 3, lastdot - (var+3)); | |
494 | if (!ent) | |
495 | return -1; | |
496 | switch (slot) { | |
497 | case EXPIRE_TOTAL: | |
498 | ent->expire_total = expire; | |
499 | break; | |
500 | case EXPIRE_UNREACH: | |
501 | ent->expire_unreachable = expire; | |
502 | break; | |
503 | } | |
504 | return 0; | |
505 | } | |
506 | ||
507 | static void set_reflog_expiry_param(struct cmd_reflog_expire_cb *cb, int slot, const char *ref) | |
508 | { | |
509 | struct reflog_expire_cfg *ent; | |
510 | ||
511 | if (slot == (EXPIRE_TOTAL|EXPIRE_UNREACH)) | |
512 | return; /* both given explicitly -- nothing to tweak */ | |
513 | ||
514 | for (ent = reflog_expire_cfg; ent; ent = ent->next) { | |
515 | if (!fnmatch(ent->pattern, ref, 0)) { | |
516 | if (!(slot & EXPIRE_TOTAL)) | |
517 | cb->expire_total = ent->expire_total; | |
518 | if (!(slot & EXPIRE_UNREACH)) | |
519 | cb->expire_unreachable = ent->expire_unreachable; | |
520 | return; | |
521 | } | |
522 | } | |
523 | ||
60bce2bb JH |
524 | /* |
525 | * If unconfigured, make stash never expire | |
526 | */ | |
527 | if (!strcmp(ref, "refs/stash")) { | |
528 | if (!(slot & EXPIRE_TOTAL)) | |
529 | cb->expire_total = 0; | |
530 | if (!(slot & EXPIRE_UNREACH)) | |
531 | cb->expire_unreachable = 0; | |
532 | return; | |
533 | } | |
534 | ||
3cb22b8e JH |
535 | /* Nothing matched -- use the default value */ |
536 | if (!(slot & EXPIRE_TOTAL)) | |
537 | cb->expire_total = default_reflog_expire; | |
538 | if (!(slot & EXPIRE_UNREACH)) | |
539 | cb->expire_unreachable = default_reflog_expire_unreachable; | |
4aec56d1 JH |
540 | } |
541 | ||
4264dc15 JH |
542 | static int cmd_reflog_expire(int argc, const char **argv, const char *prefix) |
543 | { | |
544 | struct cmd_reflog_expire_cb cb; | |
545 | unsigned long now = time(NULL); | |
546 | int i, status, do_all; | |
3cb22b8e | 547 | int explicit_expiry = 0; |
4264dc15 | 548 | |
ef90d6d4 | 549 | git_config(reflog_expire_config, NULL); |
4aec56d1 | 550 | |
4264dc15 JH |
551 | save_commit_buffer = 0; |
552 | do_all = status = 0; | |
553 | memset(&cb, 0, sizeof(cb)); | |
4aec56d1 JH |
554 | |
555 | if (!default_reflog_expire_unreachable) | |
556 | default_reflog_expire_unreachable = now - 30 * 24 * 3600; | |
557 | if (!default_reflog_expire) | |
558 | default_reflog_expire = now - 90 * 24 * 3600; | |
559 | cb.expire_total = default_reflog_expire; | |
560 | cb.expire_unreachable = default_reflog_expire_unreachable; | |
4264dc15 JH |
561 | |
562 | for (i = 1; i < argc; i++) { | |
563 | const char *arg = argv[i]; | |
564 | if (!strcmp(arg, "--dry-run") || !strcmp(arg, "-n")) | |
565 | cb.dry_run = 1; | |
3cb22b8e | 566 | else if (!prefixcmp(arg, "--expire=")) { |
4264dc15 | 567 | cb.expire_total = approxidate(arg + 9); |
3cb22b8e JH |
568 | explicit_expiry |= EXPIRE_TOTAL; |
569 | } | |
570 | else if (!prefixcmp(arg, "--expire-unreachable=")) { | |
4264dc15 | 571 | cb.expire_unreachable = approxidate(arg + 21); |
3cb22b8e JH |
572 | explicit_expiry |= EXPIRE_UNREACH; |
573 | } | |
1389d9dd JH |
574 | else if (!strcmp(arg, "--stale-fix")) |
575 | cb.stalefix = 1; | |
2b81fab2 BC |
576 | else if (!strcmp(arg, "--rewrite")) |
577 | cb.rewrite = 1; | |
55f10565 BC |
578 | else if (!strcmp(arg, "--updateref")) |
579 | cb.updateref = 1; | |
4264dc15 JH |
580 | else if (!strcmp(arg, "--all")) |
581 | do_all = 1; | |
1389d9dd JH |
582 | else if (!strcmp(arg, "--verbose")) |
583 | cb.verbose = 1; | |
4264dc15 JH |
584 | else if (!strcmp(arg, "--")) { |
585 | i++; | |
586 | break; | |
587 | } | |
588 | else if (arg[0] == '-') | |
589 | usage(reflog_expire_usage); | |
590 | else | |
591 | break; | |
592 | } | |
3cb22b8e JH |
593 | |
594 | /* | |
595 | * We can trust the commits and objects reachable from refs | |
596 | * even in older repository. We cannot trust what's reachable | |
597 | * from reflog if the repository was pruned with older git. | |
598 | */ | |
1389d9dd JH |
599 | if (cb.stalefix) { |
600 | init_revisions(&cb.revs, prefix); | |
601 | if (cb.verbose) | |
602 | printf("Marking reachable objects..."); | |
603 | mark_reachable_objects(&cb.revs, 0); | |
604 | if (cb.verbose) | |
605 | putchar('\n'); | |
606 | } | |
607 | ||
bda3a31c JH |
608 | if (do_all) { |
609 | struct collect_reflog_cb collected; | |
610 | int i; | |
611 | ||
612 | memset(&collected, 0, sizeof(collected)); | |
613 | for_each_reflog(collect_reflog, &collected); | |
614 | for (i = 0; i < collected.nr; i++) { | |
615 | struct collected_reflog *e = collected.e[i]; | |
3cb22b8e | 616 | set_reflog_expiry_param(&cb, explicit_expiry, e->reflog); |
bda3a31c JH |
617 | status |= expire_reflog(e->reflog, e->sha1, 0, &cb); |
618 | free(e); | |
619 | } | |
620 | free(collected.e); | |
621 | } | |
622 | ||
90fb46ec PB |
623 | for (; i < argc; i++) { |
624 | char *ref; | |
4264dc15 | 625 | unsigned char sha1[20]; |
90fb46ec PB |
626 | if (!dwim_log(argv[i], strlen(argv[i]), sha1, &ref)) { |
627 | status |= error("%s points nowhere!", argv[i]); | |
4264dc15 JH |
628 | continue; |
629 | } | |
3cb22b8e | 630 | set_reflog_expiry_param(&cb, explicit_expiry, ref); |
4264dc15 JH |
631 | status |= expire_reflog(ref, sha1, 0, &cb); |
632 | } | |
633 | return status; | |
634 | } | |
635 | ||
552cecc2 JS |
636 | static int count_reflog_ent(unsigned char *osha1, unsigned char *nsha1, |
637 | const char *email, unsigned long timestamp, int tz, | |
638 | const char *message, void *cb_data) | |
639 | { | |
640 | struct cmd_reflog_expire_cb *cb = cb_data; | |
641 | if (!cb->expire_total || timestamp < cb->expire_total) | |
642 | cb->recno++; | |
643 | return 0; | |
644 | } | |
645 | ||
646 | static int cmd_reflog_delete(int argc, const char **argv, const char *prefix) | |
647 | { | |
648 | struct cmd_reflog_expire_cb cb; | |
649 | int i, status = 0; | |
650 | ||
552cecc2 JS |
651 | memset(&cb, 0, sizeof(cb)); |
652 | ||
653 | for (i = 1; i < argc; i++) { | |
3c386aa3 BC |
654 | const char *arg = argv[i]; |
655 | if (!strcmp(arg, "--dry-run") || !strcmp(arg, "-n")) | |
656 | cb.dry_run = 1; | |
2b81fab2 BC |
657 | else if (!strcmp(arg, "--rewrite")) |
658 | cb.rewrite = 1; | |
55f10565 BC |
659 | else if (!strcmp(arg, "--updateref")) |
660 | cb.updateref = 1; | |
3c386aa3 BC |
661 | else if (!strcmp(arg, "--verbose")) |
662 | cb.verbose = 1; | |
663 | else if (!strcmp(arg, "--")) { | |
664 | i++; | |
665 | break; | |
666 | } | |
667 | else if (arg[0] == '-') | |
668 | usage(reflog_delete_usage); | |
669 | else | |
670 | break; | |
671 | } | |
672 | ||
673 | if (argc - i < 1) | |
674 | return error("Nothing to delete?"); | |
675 | ||
676 | for ( ; i < argc; i++) { | |
552cecc2 JS |
677 | const char *spec = strstr(argv[i], "@{"); |
678 | unsigned char sha1[20]; | |
679 | char *ep, *ref; | |
680 | int recno; | |
681 | ||
682 | if (!spec) { | |
cb97cc9f | 683 | status |= error("Not a reflog: %s", argv[i]); |
552cecc2 JS |
684 | continue; |
685 | } | |
686 | ||
55beff4f JH |
687 | if (!dwim_log(argv[i], spec - argv[i], sha1, &ref)) { |
688 | status |= error("no reflog for '%s'", argv[i]); | |
552cecc2 JS |
689 | continue; |
690 | } | |
691 | ||
692 | recno = strtoul(spec + 2, &ep, 10); | |
693 | if (*ep == '}') { | |
694 | cb.recno = -recno; | |
695 | for_each_reflog_ent(ref, count_reflog_ent, &cb); | |
696 | } else { | |
697 | cb.expire_total = approxidate(spec + 2); | |
698 | for_each_reflog_ent(ref, count_reflog_ent, &cb); | |
699 | cb.expire_total = 0; | |
700 | } | |
701 | ||
702 | status |= expire_reflog(ref, sha1, 0, &cb); | |
703 | free(ref); | |
704 | } | |
705 | return status; | |
706 | } | |
707 | ||
1389d9dd JH |
708 | /* |
709 | * main "reflog" | |
710 | */ | |
711 | ||
4264dc15 | 712 | static const char reflog_usage[] = |
e77095e8 | 713 | "git reflog [ show | expire | delete ]"; |
4264dc15 JH |
714 | |
715 | int cmd_reflog(int argc, const char **argv, const char *prefix) | |
716 | { | |
99caeed0 JN |
717 | if (argc > 1 && !strcmp(argv[1], "-h")) |
718 | usage(reflog_usage); | |
719 | ||
cf39f54e LT |
720 | /* With no command, we default to showing it. */ |
721 | if (argc < 2 || *argv[1] == '-') | |
722 | return cmd_log_reflog(argc, argv, prefix); | |
723 | ||
724 | if (!strcmp(argv[1], "show")) | |
725 | return cmd_log_reflog(argc - 1, argv + 1, prefix); | |
726 | ||
727 | if (!strcmp(argv[1], "expire")) | |
4264dc15 | 728 | return cmd_reflog_expire(argc - 1, argv + 1, prefix); |
cf39f54e | 729 | |
552cecc2 JS |
730 | if (!strcmp(argv[1], "delete")) |
731 | return cmd_reflog_delete(argc - 1, argv + 1, prefix); | |
732 | ||
cf39f54e LT |
733 | /* Not a recognized reflog command..*/ |
734 | usage(reflog_usage); | |
4264dc15 | 735 | } |