]>
Commit | Line | Data |
---|---|---|
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; | |
1389d9dd | 39 | struct cmd_reflog_expire_cb *cmd; |
2b81fab2 | 40 | unsigned char last_kept_sha1[20]; |
4264dc15 JH |
41 | }; |
42 | ||
bda3a31c JH |
43 | struct collected_reflog { |
44 | unsigned char sha1[20]; | |
45 | char reflog[FLEX_ARRAY]; | |
46 | }; | |
47 | struct collect_reflog_cb { | |
48 | struct collected_reflog **e; | |
49 | int alloc; | |
50 | int nr; | |
51 | }; | |
52 | ||
cd1f9c36 JH |
53 | #define INCOMPLETE (1u<<10) |
54 | #define STUDYING (1u<<11) | |
24cb1bb1 | 55 | #define REACHABLE (1u<<12) |
cd1f9c36 | 56 | |
8d8b9f62 JH |
57 | static int tree_is_complete(const unsigned char *sha1) |
58 | { | |
59 | struct tree_desc desc; | |
cd1f9c36 JH |
60 | struct name_entry entry; |
61 | int complete; | |
62 | struct tree *tree; | |
8d8b9f62 | 63 | |
cd1f9c36 JH |
64 | tree = lookup_tree(sha1); |
65 | if (!tree) | |
8d8b9f62 | 66 | return 0; |
cd1f9c36 JH |
67 | if (tree->object.flags & SEEN) |
68 | return 1; | |
69 | if (tree->object.flags & INCOMPLETE) | |
70 | return 0; | |
71 | ||
6fda5e51 | 72 | if (!tree->buffer) { |
21666f1a | 73 | enum object_type type; |
6fda5e51 LT |
74 | unsigned long size; |
75 | void *data = read_sha1_file(sha1, &type, &size); | |
cd1f9c36 JH |
76 | if (!data) { |
77 | tree->object.flags |= INCOMPLETE; | |
8d8b9f62 JH |
78 | return 0; |
79 | } | |
cd1f9c36 | 80 | tree->buffer = data; |
6fda5e51 | 81 | tree->size = size; |
8d8b9f62 | 82 | } |
6fda5e51 | 83 | init_tree_desc(&desc, tree->buffer, tree->size); |
cd1f9c36 JH |
84 | complete = 1; |
85 | while (tree_entry(&desc, &entry)) { | |
86 | if (!has_sha1_file(entry.sha1) || | |
87 | (S_ISDIR(entry.mode) && !tree_is_complete(entry.sha1))) { | |
88 | tree->object.flags |= INCOMPLETE; | |
89 | complete = 0; | |
90 | } | |
91 | } | |
92 | free(tree->buffer); | |
93 | tree->buffer = NULL; | |
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 | ||
9ffb15d5 LT |
213 | static int unreachable(struct expire_reflog_cb *cb, struct commit *commit, unsigned char *sha1) |
214 | { | |
215 | /* | |
216 | * We may or may not have the commit yet - if not, look it | |
217 | * up using the supplied sha1. | |
218 | */ | |
219 | if (!commit) { | |
220 | if (is_null_sha1(sha1)) | |
221 | return 0; | |
222 | ||
223 | commit = lookup_commit_reference_gently(sha1, 1); | |
224 | ||
225 | /* Not a commit -- keep it */ | |
226 | if (!commit) | |
227 | return 0; | |
228 | } | |
229 | ||
230 | /* Reachable from the current ref? Don't prune. */ | |
24cb1bb1 JH |
231 | if (commit->object.flags & REACHABLE) |
232 | return 0; | |
9ffb15d5 LT |
233 | if (in_merge_bases(commit, &cb->ref_commit, 1)) |
234 | return 0; | |
235 | ||
236 | /* We can't reach it - prune it. */ | |
237 | return 1; | |
238 | } | |
239 | ||
24cb1bb1 JH |
240 | static void mark_reachable(struct commit *commit, unsigned long expire_limit) |
241 | { | |
242 | /* | |
243 | * We need to compute if commit on either side of an reflog | |
244 | * entry is reachable from the tip of the ref for all entries. | |
245 | * Mark commits that are reachable from the tip down to the | |
246 | * time threashold first; we know a commit marked thusly is | |
247 | * reachable from the tip without running in_merge_bases() | |
248 | * at all. | |
249 | */ | |
250 | struct commit_list *pending = NULL; | |
251 | ||
252 | commit_list_insert(commit, &pending); | |
253 | while (pending) { | |
254 | struct commit_list *entry = pending; | |
255 | struct commit_list *parent; | |
256 | pending = entry->next; | |
257 | commit = entry->item; | |
258 | free(entry); | |
259 | if (commit->object.flags & REACHABLE) | |
260 | continue; | |
261 | if (parse_commit(commit)) | |
262 | continue; | |
263 | commit->object.flags |= REACHABLE; | |
264 | if (commit->date < expire_limit) | |
265 | continue; | |
266 | parent = commit->parents; | |
267 | while (parent) { | |
268 | commit = parent->item; | |
269 | parent = parent->next; | |
270 | if (commit->object.flags & REACHABLE) | |
271 | continue; | |
272 | commit_list_insert(commit, &pending); | |
273 | } | |
274 | } | |
275 | } | |
276 | ||
4264dc15 | 277 | static int expire_reflog_ent(unsigned char *osha1, unsigned char *nsha1, |
883d60fa JS |
278 | const char *email, unsigned long timestamp, int tz, |
279 | const char *message, void *cb_data) | |
4264dc15 JH |
280 | { |
281 | struct expire_reflog_cb *cb = cb_data; | |
4264dc15 JH |
282 | struct commit *old, *new; |
283 | ||
1389d9dd | 284 | if (timestamp < cb->cmd->expire_total) |
4264dc15 JH |
285 | goto prune; |
286 | ||
2b81fab2 BC |
287 | if (cb->cmd->rewrite) |
288 | osha1 = cb->last_kept_sha1; | |
289 | ||
9bbaa6cc | 290 | old = new = NULL; |
1389d9dd JH |
291 | if (cb->cmd->stalefix && |
292 | (!keep_entry(&old, osha1) || !keep_entry(&new, nsha1))) | |
4264dc15 JH |
293 | goto prune; |
294 | ||
9bbaa6cc JH |
295 | if (timestamp < cb->cmd->expire_unreachable) { |
296 | if (!cb->ref_commit) | |
297 | goto prune; | |
9ffb15d5 | 298 | if (unreachable(cb, old, osha1) || unreachable(cb, new, nsha1)) |
9bbaa6cc JH |
299 | goto prune; |
300 | } | |
4264dc15 | 301 | |
552cecc2 JS |
302 | if (cb->cmd->recno && --(cb->cmd->recno) == 0) |
303 | goto prune; | |
304 | ||
883d60fa JS |
305 | if (cb->newlog) { |
306 | char sign = (tz < 0) ? '-' : '+'; | |
307 | int zone = (tz < 0) ? (-tz) : tz; | |
308 | fprintf(cb->newlog, "%s %s %s %lu %c%04d\t%s", | |
309 | sha1_to_hex(osha1), sha1_to_hex(nsha1), | |
310 | email, timestamp, sign, zone, | |
311 | message); | |
2b81fab2 | 312 | hashcpy(cb->last_kept_sha1, nsha1); |
883d60fa | 313 | } |
1389d9dd | 314 | if (cb->cmd->verbose) |
883d60fa | 315 | printf("keep %s", message); |
4264dc15 JH |
316 | return 0; |
317 | prune: | |
1389d9dd | 318 | if (!cb->newlog || cb->cmd->verbose) |
883d60fa | 319 | printf("%sprune %s", cb->newlog ? "" : "would ", message); |
4264dc15 JH |
320 | return 0; |
321 | } | |
322 | ||
4264dc15 JH |
323 | static int expire_reflog(const char *ref, const unsigned char *sha1, int unused, void *cb_data) |
324 | { | |
325 | struct cmd_reflog_expire_cb *cmd = cb_data; | |
326 | struct expire_reflog_cb cb; | |
327 | struct ref_lock *lock; | |
9a13f0b7 | 328 | char *log_file, *newlog_path = NULL; |
4264dc15 JH |
329 | int status = 0; |
330 | ||
4264dc15 | 331 | memset(&cb, 0, sizeof(cb)); |
3cb22b8e JH |
332 | |
333 | /* | |
334 | * we take the lock for the ref itself to prevent it from | |
4264dc15 JH |
335 | * getting updated. |
336 | */ | |
68db31cc | 337 | lock = lock_any_ref_for_update(ref, sha1, 0); |
4264dc15 JH |
338 | if (!lock) |
339 | return error("cannot lock ref '%s'", ref); | |
a4f34cbb | 340 | log_file = git_pathdup("logs/%s", ref); |
9a13f0b7 | 341 | if (!file_exists(log_file)) |
4264dc15 JH |
342 | goto finish; |
343 | if (!cmd->dry_run) { | |
a4f34cbb | 344 | newlog_path = git_pathdup("logs/%s.lock", ref); |
4264dc15 JH |
345 | cb.newlog = fopen(newlog_path, "w"); |
346 | } | |
347 | ||
348 | cb.ref_commit = lookup_commit_reference_gently(sha1, 1); | |
4264dc15 | 349 | cb.ref = ref; |
1389d9dd | 350 | cb.cmd = cmd; |
24cb1bb1 JH |
351 | if (cb.ref_commit) |
352 | mark_reachable(cb.ref_commit, cmd->expire_total); | |
4264dc15 | 353 | for_each_reflog_ent(ref, expire_reflog_ent, &cb); |
24cb1bb1 JH |
354 | if (cb.ref_commit) |
355 | clear_commit_marks(cb.ref_commit, REACHABLE); | |
4264dc15 JH |
356 | finish: |
357 | if (cb.newlog) { | |
4cd883d7 | 358 | if (fclose(cb.newlog)) { |
4264dc15 JH |
359 | status |= error("%s: %s", strerror(errno), |
360 | newlog_path); | |
4cd883d7 | 361 | unlink(newlog_path); |
55f10565 BC |
362 | } else if (cmd->updateref && |
363 | (write_in_full(lock->lock_fd, | |
364 | sha1_to_hex(cb.last_kept_sha1), 40) != 40 || | |
365 | write_in_full(lock->lock_fd, "\n", 1) != 1 || | |
366 | close_ref(lock) < 0)) { | |
367 | status |= error("Couldn't write %s", | |
368 | lock->lk->filename); | |
369 | unlink(newlog_path); | |
4cd883d7 | 370 | } else if (rename(newlog_path, log_file)) { |
4264dc15 | 371 | status |= error("cannot rename %s to %s", |
9a13f0b7 | 372 | newlog_path, log_file); |
4264dc15 | 373 | unlink(newlog_path); |
55f10565 BC |
374 | } else if (cmd->updateref && commit_ref(lock)) { |
375 | status |= error("Couldn't set %s", lock->ref_name); | |
336d09da PH |
376 | } else { |
377 | adjust_shared_perm(log_file); | |
4264dc15 JH |
378 | } |
379 | } | |
380 | free(newlog_path); | |
9a13f0b7 | 381 | free(log_file); |
4264dc15 JH |
382 | unlock_ref(lock); |
383 | return status; | |
384 | } | |
385 | ||
bda3a31c JH |
386 | static int collect_reflog(const char *ref, const unsigned char *sha1, int unused, void *cb_data) |
387 | { | |
388 | struct collected_reflog *e; | |
389 | struct collect_reflog_cb *cb = cb_data; | |
390 | size_t namelen = strlen(ref); | |
391 | ||
392 | e = xmalloc(sizeof(*e) + namelen + 1); | |
393 | hashcpy(e->sha1, sha1); | |
394 | memcpy(e->reflog, ref, namelen + 1); | |
395 | ALLOC_GROW(cb->e, cb->nr + 1, cb->alloc); | |
396 | cb->e[cb->nr++] = e; | |
397 | return 0; | |
398 | } | |
399 | ||
3cb22b8e JH |
400 | static struct reflog_expire_cfg { |
401 | struct reflog_expire_cfg *next; | |
402 | unsigned long expire_total; | |
403 | unsigned long expire_unreachable; | |
404 | size_t len; | |
405 | char pattern[FLEX_ARRAY]; | |
406 | } *reflog_expire_cfg, **reflog_expire_cfg_tail; | |
407 | ||
408 | static struct reflog_expire_cfg *find_cfg_ent(const char *pattern, size_t len) | |
4aec56d1 | 409 | { |
3cb22b8e JH |
410 | struct reflog_expire_cfg *ent; |
411 | ||
412 | if (!reflog_expire_cfg_tail) | |
413 | reflog_expire_cfg_tail = &reflog_expire_cfg; | |
414 | ||
415 | for (ent = reflog_expire_cfg; ent; ent = ent->next) | |
416 | if (ent->len == len && | |
417 | !memcmp(ent->pattern, pattern, len)) | |
418 | return ent; | |
419 | ||
420 | ent = xcalloc(1, (sizeof(*ent) + len)); | |
421 | memcpy(ent->pattern, pattern, len); | |
422 | ent->len = len; | |
423 | *reflog_expire_cfg_tail = ent; | |
424 | reflog_expire_cfg_tail = &(ent->next); | |
425 | return ent; | |
426 | } | |
427 | ||
428 | static int parse_expire_cfg_value(const char *var, const char *value, unsigned long *expire) | |
429 | { | |
430 | if (!value) | |
431 | return config_error_nonbool(var); | |
432 | if (!strcmp(value, "never") || !strcmp(value, "false")) { | |
433 | *expire = 0; | |
4f342b96 JH |
434 | return 0; |
435 | } | |
3cb22b8e JH |
436 | *expire = approxidate(value); |
437 | return 0; | |
438 | } | |
439 | ||
440 | /* expiry timer slot */ | |
441 | #define EXPIRE_TOTAL 01 | |
442 | #define EXPIRE_UNREACH 02 | |
443 | ||
444 | static int reflog_expire_config(const char *var, const char *value, void *cb) | |
445 | { | |
446 | const char *lastdot = strrchr(var, '.'); | |
447 | unsigned long expire; | |
448 | int slot; | |
449 | struct reflog_expire_cfg *ent; | |
450 | ||
451 | if (!lastdot || prefixcmp(var, "gc.")) | |
452 | return git_default_config(var, value, cb); | |
453 | ||
454 | if (!strcmp(lastdot, ".reflogexpire")) { | |
455 | slot = EXPIRE_TOTAL; | |
456 | if (parse_expire_cfg_value(var, value, &expire)) | |
457 | return -1; | |
458 | } else if (!strcmp(lastdot, ".reflogexpireunreachable")) { | |
459 | slot = EXPIRE_UNREACH; | |
460 | if (parse_expire_cfg_value(var, value, &expire)) | |
461 | return -1; | |
462 | } else | |
463 | return git_default_config(var, value, cb); | |
464 | ||
465 | if (lastdot == var + 2) { | |
466 | switch (slot) { | |
467 | case EXPIRE_TOTAL: | |
468 | default_reflog_expire = expire; | |
469 | break; | |
470 | case EXPIRE_UNREACH: | |
471 | default_reflog_expire_unreachable = expire; | |
472 | break; | |
473 | } | |
4f342b96 JH |
474 | return 0; |
475 | } | |
3cb22b8e JH |
476 | |
477 | ent = find_cfg_ent(var + 3, lastdot - (var+3)); | |
478 | if (!ent) | |
479 | return -1; | |
480 | switch (slot) { | |
481 | case EXPIRE_TOTAL: | |
482 | ent->expire_total = expire; | |
483 | break; | |
484 | case EXPIRE_UNREACH: | |
485 | ent->expire_unreachable = expire; | |
486 | break; | |
487 | } | |
488 | return 0; | |
489 | } | |
490 | ||
491 | static void set_reflog_expiry_param(struct cmd_reflog_expire_cb *cb, int slot, const char *ref) | |
492 | { | |
493 | struct reflog_expire_cfg *ent; | |
494 | ||
495 | if (slot == (EXPIRE_TOTAL|EXPIRE_UNREACH)) | |
496 | return; /* both given explicitly -- nothing to tweak */ | |
497 | ||
498 | for (ent = reflog_expire_cfg; ent; ent = ent->next) { | |
499 | if (!fnmatch(ent->pattern, ref, 0)) { | |
500 | if (!(slot & EXPIRE_TOTAL)) | |
501 | cb->expire_total = ent->expire_total; | |
502 | if (!(slot & EXPIRE_UNREACH)) | |
503 | cb->expire_unreachable = ent->expire_unreachable; | |
504 | return; | |
505 | } | |
506 | } | |
507 | ||
60bce2bb JH |
508 | /* |
509 | * If unconfigured, make stash never expire | |
510 | */ | |
511 | if (!strcmp(ref, "refs/stash")) { | |
512 | if (!(slot & EXPIRE_TOTAL)) | |
513 | cb->expire_total = 0; | |
514 | if (!(slot & EXPIRE_UNREACH)) | |
515 | cb->expire_unreachable = 0; | |
516 | return; | |
517 | } | |
518 | ||
3cb22b8e JH |
519 | /* Nothing matched -- use the default value */ |
520 | if (!(slot & EXPIRE_TOTAL)) | |
521 | cb->expire_total = default_reflog_expire; | |
522 | if (!(slot & EXPIRE_UNREACH)) | |
523 | cb->expire_unreachable = default_reflog_expire_unreachable; | |
4aec56d1 JH |
524 | } |
525 | ||
4264dc15 JH |
526 | static int cmd_reflog_expire(int argc, const char **argv, const char *prefix) |
527 | { | |
528 | struct cmd_reflog_expire_cb cb; | |
529 | unsigned long now = time(NULL); | |
530 | int i, status, do_all; | |
3cb22b8e | 531 | int explicit_expiry = 0; |
4264dc15 | 532 | |
ef90d6d4 | 533 | git_config(reflog_expire_config, NULL); |
4aec56d1 | 534 | |
4264dc15 JH |
535 | save_commit_buffer = 0; |
536 | do_all = status = 0; | |
537 | memset(&cb, 0, sizeof(cb)); | |
4aec56d1 JH |
538 | |
539 | if (!default_reflog_expire_unreachable) | |
540 | default_reflog_expire_unreachable = now - 30 * 24 * 3600; | |
541 | if (!default_reflog_expire) | |
542 | default_reflog_expire = now - 90 * 24 * 3600; | |
543 | cb.expire_total = default_reflog_expire; | |
544 | cb.expire_unreachable = default_reflog_expire_unreachable; | |
4264dc15 JH |
545 | |
546 | for (i = 1; i < argc; i++) { | |
547 | const char *arg = argv[i]; | |
548 | if (!strcmp(arg, "--dry-run") || !strcmp(arg, "-n")) | |
549 | cb.dry_run = 1; | |
3cb22b8e | 550 | else if (!prefixcmp(arg, "--expire=")) { |
4264dc15 | 551 | cb.expire_total = approxidate(arg + 9); |
3cb22b8e JH |
552 | explicit_expiry |= EXPIRE_TOTAL; |
553 | } | |
554 | else if (!prefixcmp(arg, "--expire-unreachable=")) { | |
4264dc15 | 555 | cb.expire_unreachable = approxidate(arg + 21); |
3cb22b8e JH |
556 | explicit_expiry |= EXPIRE_UNREACH; |
557 | } | |
1389d9dd JH |
558 | else if (!strcmp(arg, "--stale-fix")) |
559 | cb.stalefix = 1; | |
2b81fab2 BC |
560 | else if (!strcmp(arg, "--rewrite")) |
561 | cb.rewrite = 1; | |
55f10565 BC |
562 | else if (!strcmp(arg, "--updateref")) |
563 | cb.updateref = 1; | |
4264dc15 JH |
564 | else if (!strcmp(arg, "--all")) |
565 | do_all = 1; | |
1389d9dd JH |
566 | else if (!strcmp(arg, "--verbose")) |
567 | cb.verbose = 1; | |
4264dc15 JH |
568 | else if (!strcmp(arg, "--")) { |
569 | i++; | |
570 | break; | |
571 | } | |
572 | else if (arg[0] == '-') | |
573 | usage(reflog_expire_usage); | |
574 | else | |
575 | break; | |
576 | } | |
3cb22b8e JH |
577 | |
578 | /* | |
579 | * We can trust the commits and objects reachable from refs | |
580 | * even in older repository. We cannot trust what's reachable | |
581 | * from reflog if the repository was pruned with older git. | |
582 | */ | |
1389d9dd JH |
583 | if (cb.stalefix) { |
584 | init_revisions(&cb.revs, prefix); | |
585 | if (cb.verbose) | |
586 | printf("Marking reachable objects..."); | |
587 | mark_reachable_objects(&cb.revs, 0); | |
588 | if (cb.verbose) | |
589 | putchar('\n'); | |
590 | } | |
591 | ||
bda3a31c JH |
592 | if (do_all) { |
593 | struct collect_reflog_cb collected; | |
594 | int i; | |
595 | ||
596 | memset(&collected, 0, sizeof(collected)); | |
597 | for_each_reflog(collect_reflog, &collected); | |
598 | for (i = 0; i < collected.nr; i++) { | |
599 | struct collected_reflog *e = collected.e[i]; | |
3cb22b8e | 600 | set_reflog_expiry_param(&cb, explicit_expiry, e->reflog); |
bda3a31c JH |
601 | status |= expire_reflog(e->reflog, e->sha1, 0, &cb); |
602 | free(e); | |
603 | } | |
604 | free(collected.e); | |
605 | } | |
606 | ||
90fb46ec PB |
607 | for (; i < argc; i++) { |
608 | char *ref; | |
4264dc15 | 609 | unsigned char sha1[20]; |
90fb46ec PB |
610 | if (!dwim_log(argv[i], strlen(argv[i]), sha1, &ref)) { |
611 | status |= error("%s points nowhere!", argv[i]); | |
4264dc15 JH |
612 | continue; |
613 | } | |
3cb22b8e | 614 | set_reflog_expiry_param(&cb, explicit_expiry, ref); |
4264dc15 JH |
615 | status |= expire_reflog(ref, sha1, 0, &cb); |
616 | } | |
617 | return status; | |
618 | } | |
619 | ||
552cecc2 JS |
620 | static int count_reflog_ent(unsigned char *osha1, unsigned char *nsha1, |
621 | const char *email, unsigned long timestamp, int tz, | |
622 | const char *message, void *cb_data) | |
623 | { | |
624 | struct cmd_reflog_expire_cb *cb = cb_data; | |
625 | if (!cb->expire_total || timestamp < cb->expire_total) | |
626 | cb->recno++; | |
627 | return 0; | |
628 | } | |
629 | ||
630 | static int cmd_reflog_delete(int argc, const char **argv, const char *prefix) | |
631 | { | |
632 | struct cmd_reflog_expire_cb cb; | |
633 | int i, status = 0; | |
634 | ||
552cecc2 JS |
635 | memset(&cb, 0, sizeof(cb)); |
636 | ||
637 | for (i = 1; i < argc; i++) { | |
3c386aa3 BC |
638 | const char *arg = argv[i]; |
639 | if (!strcmp(arg, "--dry-run") || !strcmp(arg, "-n")) | |
640 | cb.dry_run = 1; | |
2b81fab2 BC |
641 | else if (!strcmp(arg, "--rewrite")) |
642 | cb.rewrite = 1; | |
55f10565 BC |
643 | else if (!strcmp(arg, "--updateref")) |
644 | cb.updateref = 1; | |
3c386aa3 BC |
645 | else if (!strcmp(arg, "--verbose")) |
646 | cb.verbose = 1; | |
647 | else if (!strcmp(arg, "--")) { | |
648 | i++; | |
649 | break; | |
650 | } | |
651 | else if (arg[0] == '-') | |
652 | usage(reflog_delete_usage); | |
653 | else | |
654 | break; | |
655 | } | |
656 | ||
657 | if (argc - i < 1) | |
658 | return error("Nothing to delete?"); | |
659 | ||
660 | for ( ; i < argc; i++) { | |
552cecc2 JS |
661 | const char *spec = strstr(argv[i], "@{"); |
662 | unsigned char sha1[20]; | |
663 | char *ep, *ref; | |
664 | int recno; | |
665 | ||
666 | if (!spec) { | |
cb97cc9f | 667 | status |= error("Not a reflog: %s", argv[i]); |
552cecc2 JS |
668 | continue; |
669 | } | |
670 | ||
55beff4f JH |
671 | if (!dwim_log(argv[i], spec - argv[i], sha1, &ref)) { |
672 | status |= error("no reflog for '%s'", argv[i]); | |
552cecc2 JS |
673 | continue; |
674 | } | |
675 | ||
676 | recno = strtoul(spec + 2, &ep, 10); | |
677 | if (*ep == '}') { | |
678 | cb.recno = -recno; | |
679 | for_each_reflog_ent(ref, count_reflog_ent, &cb); | |
680 | } else { | |
681 | cb.expire_total = approxidate(spec + 2); | |
682 | for_each_reflog_ent(ref, count_reflog_ent, &cb); | |
683 | cb.expire_total = 0; | |
684 | } | |
685 | ||
686 | status |= expire_reflog(ref, sha1, 0, &cb); | |
687 | free(ref); | |
688 | } | |
689 | return status; | |
690 | } | |
691 | ||
1389d9dd JH |
692 | /* |
693 | * main "reflog" | |
694 | */ | |
695 | ||
4264dc15 | 696 | static const char reflog_usage[] = |
1b1dd23f | 697 | "git reflog (expire | ...)"; |
4264dc15 JH |
698 | |
699 | int cmd_reflog(int argc, const char **argv, const char *prefix) | |
700 | { | |
cf39f54e LT |
701 | /* With no command, we default to showing it. */ |
702 | if (argc < 2 || *argv[1] == '-') | |
703 | return cmd_log_reflog(argc, argv, prefix); | |
704 | ||
705 | if (!strcmp(argv[1], "show")) | |
706 | return cmd_log_reflog(argc - 1, argv + 1, prefix); | |
707 | ||
708 | if (!strcmp(argv[1], "expire")) | |
4264dc15 | 709 | return cmd_reflog_expire(argc - 1, argv + 1, prefix); |
cf39f54e | 710 | |
552cecc2 JS |
711 | if (!strcmp(argv[1], "delete")) |
712 | return cmd_reflog_delete(argc - 1, argv + 1, prefix); | |
713 | ||
cf39f54e LT |
714 | /* Not a recognized reflog command..*/ |
715 | usage(reflog_usage); | |
4264dc15 | 716 | } |