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Commit | Line | Data |
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4264dc15 | 1 | #include "builtin.h" |
b2141fc1 | 2 | #include "config.h" |
697cc8ef | 3 | #include "lockfile.h" |
4264dc15 JH |
4 | #include "commit.h" |
5 | #include "refs.h" | |
6 | #include "dir.h" | |
8d8b9f62 | 7 | #include "tree-walk.h" |
1389d9dd JH |
8 | #include "diff.h" |
9 | #include "revision.h" | |
10 | #include "reachable.h" | |
11 | ||
fe2a1816 | 12 | /* NEEDSWORK: switch to using parse_options */ |
1389d9dd | 13 | static const char reflog_expire_usage[] = |
fe2a1816 | 14 | "git reflog expire [--expire=<time>] [--expire-unreachable=<time>] [--rewrite] [--updateref] [--stale-fix] [--dry-run | -n] [--verbose] [--all] <refs>..."; |
3c386aa3 | 15 | static const char reflog_delete_usage[] = |
fe2a1816 | 16 | "git reflog delete [--rewrite] [--updateref] [--dry-run | -n] [--verbose] <refs>..."; |
afcb2e7a DT |
17 | static const char reflog_exists_usage[] = |
18 | "git reflog exists <ref>"; | |
4264dc15 | 19 | |
dddbad72 JS |
20 | static timestamp_t default_reflog_expire; |
21 | static timestamp_t default_reflog_expire_unreachable; | |
4aec56d1 | 22 | |
1389d9dd JH |
23 | struct cmd_reflog_expire_cb { |
24 | struct rev_info revs; | |
1389d9dd | 25 | int stalefix; |
dddbad72 JS |
26 | timestamp_t expire_total; |
27 | timestamp_t expire_unreachable; | |
552cecc2 | 28 | int recno; |
1389d9dd JH |
29 | }; |
30 | ||
ea7b4f6d | 31 | struct expire_reflog_policy_cb { |
03cb91b1 JH |
32 | enum { |
33 | UE_NORMAL, | |
34 | UE_ALWAYS, | |
35 | UE_HEAD | |
36 | } unreachable_expire_kind; | |
b4ca1db9 JH |
37 | struct commit_list *mark_list; |
38 | unsigned long mark_limit; | |
b729effb | 39 | struct cmd_reflog_expire_cb cmd; |
c48a1635 MH |
40 | struct commit *tip_commit; |
41 | struct commit_list *tips; | |
4264dc15 JH |
42 | }; |
43 | ||
bda3a31c | 44 | struct collected_reflog { |
b8acac54 | 45 | struct object_id oid; |
bda3a31c JH |
46 | char reflog[FLEX_ARRAY]; |
47 | }; | |
ddd64c56 | 48 | |
bda3a31c JH |
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 | |
49a09e74 | 59 | static int tree_is_complete(const struct object_id *oid) |
8d8b9f62 JH |
60 | { |
61 | struct tree_desc desc; | |
cd1f9c36 JH |
62 | struct name_entry entry; |
63 | int complete; | |
64 | struct tree *tree; | |
8d8b9f62 | 65 | |
740ee055 | 66 | tree = lookup_tree(oid); |
cd1f9c36 | 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 | 76 | unsigned long size; |
49a09e74 | 77 | void *data = read_sha1_file(oid->hash, &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)) { | |
7d924c91 | 88 | if (!has_sha1_file(entry.oid->hash) || |
49a09e74 | 89 | (S_ISDIR(entry.mode) && !tree_is_complete(entry.oid))) { |
cd1f9c36 JH |
90 | tree->object.flags |= INCOMPLETE; |
91 | complete = 0; | |
92 | } | |
93 | } | |
6e454b9a | 94 | free_tree_buffer(tree); |
8d8b9f62 | 95 | |
cd1f9c36 JH |
96 | if (complete) |
97 | tree->object.flags |= SEEN; | |
98 | return complete; | |
99 | } | |
1389d9dd JH |
100 | |
101 | static int commit_is_complete(struct commit *commit) | |
102 | { | |
103 | struct object_array study; | |
104 | struct object_array found; | |
105 | int is_incomplete = 0; | |
106 | int i; | |
107 | ||
108 | /* early return */ | |
109 | if (commit->object.flags & SEEN) | |
110 | return 1; | |
111 | if (commit->object.flags & INCOMPLETE) | |
112 | return 0; | |
113 | /* | |
114 | * Find all commits that are reachable and are not marked as | |
115 | * SEEN. Then make sure the trees and blobs contained are | |
116 | * complete. After that, mark these commits also as SEEN. | |
117 | * If some of the objects that are needed to complete this | |
118 | * commit are missing, mark this commit as INCOMPLETE. | |
119 | */ | |
120 | memset(&study, 0, sizeof(study)); | |
121 | memset(&found, 0, sizeof(found)); | |
122 | add_object_array(&commit->object, NULL, &study); | |
123 | add_object_array(&commit->object, NULL, &found); | |
124 | commit->object.flags |= STUDYING; | |
125 | while (study.nr) { | |
126 | struct commit *c; | |
127 | struct commit_list *parent; | |
128 | ||
71992039 | 129 | c = (struct commit *)object_array_pop(&study); |
c251c83d | 130 | if (!c->object.parsed && !parse_object(&c->object.oid)) |
1389d9dd JH |
131 | c->object.flags |= INCOMPLETE; |
132 | ||
133 | if (c->object.flags & INCOMPLETE) { | |
134 | is_incomplete = 1; | |
135 | break; | |
136 | } | |
137 | else if (c->object.flags & SEEN) | |
138 | continue; | |
139 | for (parent = c->parents; parent; parent = parent->next) { | |
140 | struct commit *p = parent->item; | |
141 | if (p->object.flags & STUDYING) | |
142 | continue; | |
143 | p->object.flags |= STUDYING; | |
144 | add_object_array(&p->object, NULL, &study); | |
145 | add_object_array(&p->object, NULL, &found); | |
146 | } | |
147 | } | |
148 | if (!is_incomplete) { | |
cd1f9c36 JH |
149 | /* |
150 | * make sure all commits in "found" array have all the | |
1389d9dd JH |
151 | * necessary objects. |
152 | */ | |
cd1f9c36 | 153 | for (i = 0; i < found.nr; i++) { |
1389d9dd JH |
154 | struct commit *c = |
155 | (struct commit *)found.objects[i].item; | |
49a09e74 | 156 | if (!tree_is_complete(&c->tree->object.oid)) { |
1389d9dd | 157 | is_incomplete = 1; |
cd1f9c36 JH |
158 | c->object.flags |= INCOMPLETE; |
159 | } | |
1389d9dd JH |
160 | } |
161 | if (!is_incomplete) { | |
162 | /* mark all found commits as complete, iow SEEN */ | |
163 | for (i = 0; i < found.nr; i++) | |
164 | found.objects[i].item->flags |= SEEN; | |
165 | } | |
166 | } | |
167 | /* clear flags from the objects we traversed */ | |
168 | for (i = 0; i < found.nr; i++) | |
169 | found.objects[i].item->flags &= ~STUDYING; | |
170 | if (is_incomplete) | |
171 | commit->object.flags |= INCOMPLETE; | |
cd1f9c36 JH |
172 | else { |
173 | /* | |
174 | * If we come here, we have (1) traversed the ancestry chain | |
175 | * from the "commit" until we reach SEEN commits (which are | |
176 | * known to be complete), and (2) made sure that the commits | |
177 | * encountered during the above traversal refer to trees that | |
178 | * are complete. Which means that we know *all* the commits | |
179 | * we have seen during this process are complete. | |
180 | */ | |
181 | for (i = 0; i < found.nr; i++) | |
182 | found.objects[i].item->flags |= SEEN; | |
183 | } | |
1389d9dd | 184 | /* free object arrays */ |
dcb572ab MÅ |
185 | object_array_clear(&study); |
186 | object_array_clear(&found); | |
1389d9dd JH |
187 | return !is_incomplete; |
188 | } | |
189 | ||
4322478a | 190 | static int keep_entry(struct commit **it, struct object_id *oid) |
4264dc15 | 191 | { |
8d8b9f62 JH |
192 | struct commit *commit; |
193 | ||
4322478a | 194 | if (is_null_oid(oid)) |
4264dc15 | 195 | return 1; |
bc83266a | 196 | commit = lookup_commit_reference_gently(oid, 1); |
8d8b9f62 JH |
197 | if (!commit) |
198 | return 0; | |
199 | ||
1389d9dd JH |
200 | /* |
201 | * Make sure everything in this commit exists. | |
202 | * | |
203 | * We have walked all the objects reachable from the refs | |
204 | * and cache earlier. The commits reachable by this commit | |
205 | * must meet SEEN commits -- and then we should mark them as | |
206 | * SEEN as well. | |
207 | */ | |
208 | if (!commit_is_complete(commit)) | |
8d8b9f62 JH |
209 | return 0; |
210 | *it = commit; | |
211 | return 1; | |
4264dc15 JH |
212 | } |
213 | ||
b4ca1db9 JH |
214 | /* |
215 | * Starting from commits in the cb->mark_list, mark commits that are | |
216 | * reachable from them. Stop the traversal at commits older than | |
217 | * the expire_limit and queue them back, so that the caller can call | |
218 | * us again to restart the traversal with longer expire_limit. | |
219 | */ | |
ea7b4f6d | 220 | static void mark_reachable(struct expire_reflog_policy_cb *cb) |
666e07e6 | 221 | { |
b4ca1db9 | 222 | struct commit_list *pending; |
dddbad72 | 223 | timestamp_t expire_limit = cb->mark_limit; |
b4ca1db9 | 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 | 230 | while (pending) { |
494fbfe8 | 231 | struct commit_list *parent; |
e510ab89 | 232 | struct commit *commit = pop_commit(&pending); |
494fbfe8 JH |
233 | if (commit->object.flags & REACHABLE) |
234 | continue; | |
235 | if (parse_commit(commit)) | |
236 | continue; | |
237 | commit->object.flags |= REACHABLE; | |
b4ca1db9 JH |
238 | if (commit->date < expire_limit) { |
239 | commit_list_insert(commit, &leftover); | |
494fbfe8 | 240 | continue; |
b4ca1db9 JH |
241 | } |
242 | commit->object.flags |= REACHABLE; | |
494fbfe8 JH |
243 | parent = commit->parents; |
244 | while (parent) { | |
245 | commit = parent->item; | |
246 | parent = parent->next; | |
247 | if (commit->object.flags & REACHABLE) | |
248 | continue; | |
249 | commit_list_insert(commit, &pending); | |
250 | } | |
251 | } | |
b4ca1db9 JH |
252 | cb->mark_list = leftover; |
253 | } | |
254 | ||
4322478a | 255 | static int unreachable(struct expire_reflog_policy_cb *cb, struct commit *commit, struct object_id *oid) |
b4ca1db9 JH |
256 | { |
257 | /* | |
258 | * We may or may not have the commit yet - if not, look it | |
259 | * up using the supplied sha1. | |
260 | */ | |
261 | if (!commit) { | |
4322478a | 262 | if (is_null_oid(oid)) |
b4ca1db9 JH |
263 | return 0; |
264 | ||
bc83266a | 265 | commit = lookup_commit_reference_gently(oid, 1); |
b4ca1db9 JH |
266 | |
267 | /* Not a commit -- keep it */ | |
268 | if (!commit) | |
269 | return 0; | |
270 | } | |
271 | ||
272 | /* Reachable from the current ref? Don't prune. */ | |
273 | if (commit->object.flags & REACHABLE) | |
274 | return 0; | |
275 | ||
276 | if (cb->mark_list && cb->mark_limit) { | |
277 | cb->mark_limit = 0; /* dig down to the root */ | |
278 | mark_reachable(cb); | |
279 | } | |
280 | ||
281 | return !(commit->object.flags & REACHABLE); | |
494fbfe8 JH |
282 | } |
283 | ||
60cc3c40 MH |
284 | /* |
285 | * Return true iff the specified reflog entry should be expired. | |
286 | */ | |
4322478a | 287 | static int should_expire_reflog_ent(struct object_id *ooid, struct object_id *noid, |
dddbad72 | 288 | const char *email, timestamp_t timestamp, int tz, |
60cc3c40 | 289 | const char *message, void *cb_data) |
4264dc15 | 290 | { |
ea7b4f6d | 291 | struct expire_reflog_policy_cb *cb = cb_data; |
4264dc15 JH |
292 | struct commit *old, *new; |
293 | ||
b729effb | 294 | if (timestamp < cb->cmd.expire_total) |
60cc3c40 | 295 | return 1; |
2b81fab2 | 296 | |
9bbaa6cc | 297 | old = new = NULL; |
b729effb | 298 | if (cb->cmd.stalefix && |
4322478a | 299 | (!keep_entry(&old, ooid) || !keep_entry(&new, noid))) |
60cc3c40 | 300 | return 1; |
4264dc15 | 301 | |
b729effb | 302 | if (timestamp < cb->cmd.expire_unreachable) { |
03cb91b1 | 303 | if (cb->unreachable_expire_kind == UE_ALWAYS) |
60cc3c40 | 304 | return 1; |
4322478a | 305 | if (unreachable(cb, old, ooid) || unreachable(cb, new, noid)) |
60cc3c40 | 306 | return 1; |
9bbaa6cc | 307 | } |
4264dc15 | 308 | |
b729effb | 309 | if (cb->cmd.recno && --(cb->cmd.recno) == 0) |
60cc3c40 MH |
310 | return 1; |
311 | ||
4264dc15 | 312 | return 0; |
60cc3c40 MH |
313 | } |
314 | ||
5bcad1bc | 315 | static int push_tip_to_list(const char *refname, const struct object_id *oid, |
ea7b4f6d | 316 | int flags, void *cb_data) |
03cb91b1 JH |
317 | { |
318 | struct commit_list **list = cb_data; | |
319 | struct commit *tip_commit; | |
320 | if (flags & REF_ISSYMREF) | |
321 | return 0; | |
bc83266a | 322 | tip_commit = lookup_commit_reference_gently(oid, 1); |
03cb91b1 JH |
323 | if (!tip_commit) |
324 | return 0; | |
325 | commit_list_insert(tip_commit, list); | |
326 | return 0; | |
327 | } | |
328 | ||
c48a1635 | 329 | static void reflog_expiry_prepare(const char *refname, |
4322478a | 330 | const struct object_id *oid, |
b729effb | 331 | void *cb_data) |
c48a1635 | 332 | { |
b729effb MH |
333 | struct expire_reflog_policy_cb *cb = cb_data; |
334 | ||
335 | if (!cb->cmd.expire_unreachable || !strcmp(refname, "HEAD")) { | |
c48a1635 MH |
336 | cb->tip_commit = NULL; |
337 | cb->unreachable_expire_kind = UE_HEAD; | |
338 | } else { | |
bc83266a | 339 | cb->tip_commit = lookup_commit_reference_gently(oid, 1); |
c48a1635 MH |
340 | if (!cb->tip_commit) |
341 | cb->unreachable_expire_kind = UE_ALWAYS; | |
342 | else | |
343 | cb->unreachable_expire_kind = UE_NORMAL; | |
344 | } | |
345 | ||
b729effb | 346 | if (cb->cmd.expire_unreachable <= cb->cmd.expire_total) |
c48a1635 MH |
347 | cb->unreachable_expire_kind = UE_ALWAYS; |
348 | ||
349 | cb->mark_list = NULL; | |
350 | cb->tips = NULL; | |
351 | if (cb->unreachable_expire_kind != UE_ALWAYS) { | |
352 | if (cb->unreachable_expire_kind == UE_HEAD) { | |
353 | struct commit_list *elem; | |
2b2a5be3 | 354 | |
5bcad1bc | 355 | for_each_ref(push_tip_to_list, &cb->tips); |
c48a1635 MH |
356 | for (elem = cb->tips; elem; elem = elem->next) |
357 | commit_list_insert(elem->item, &cb->mark_list); | |
358 | } else { | |
359 | commit_list_insert(cb->tip_commit, &cb->mark_list); | |
360 | } | |
b729effb | 361 | cb->mark_limit = cb->cmd.expire_total; |
c48a1635 MH |
362 | mark_reachable(cb); |
363 | } | |
364 | } | |
365 | ||
b729effb | 366 | static void reflog_expiry_cleanup(void *cb_data) |
c48a1635 | 367 | { |
b729effb MH |
368 | struct expire_reflog_policy_cb *cb = cb_data; |
369 | ||
c48a1635 MH |
370 | if (cb->unreachable_expire_kind != UE_ALWAYS) { |
371 | if (cb->unreachable_expire_kind == UE_HEAD) { | |
372 | struct commit_list *elem; | |
373 | for (elem = cb->tips; elem; elem = elem->next) | |
374 | clear_commit_marks(elem->item, REACHABLE); | |
375 | free_commit_list(cb->tips); | |
376 | } else { | |
377 | clear_commit_marks(cb->tip_commit, REACHABLE); | |
378 | } | |
379 | } | |
380 | } | |
381 | ||
5bcad1bc | 382 | static int collect_reflog(const char *ref, const struct object_id *oid, int unused, void *cb_data) |
bda3a31c JH |
383 | { |
384 | struct collected_reflog *e; | |
385 | struct collect_reflog_cb *cb = cb_data; | |
bda3a31c | 386 | |
96ffc06f | 387 | FLEX_ALLOC_STR(e, reflog, ref); |
b8acac54 | 388 | oidcpy(&e->oid, oid); |
bda3a31c JH |
389 | ALLOC_GROW(cb->e, cb->nr + 1, cb->alloc); |
390 | cb->e[cb->nr++] = e; | |
391 | return 0; | |
392 | } | |
393 | ||
3cb22b8e JH |
394 | static struct reflog_expire_cfg { |
395 | struct reflog_expire_cfg *next; | |
dddbad72 JS |
396 | timestamp_t expire_total; |
397 | timestamp_t expire_unreachable; | |
3cb22b8e JH |
398 | char pattern[FLEX_ARRAY]; |
399 | } *reflog_expire_cfg, **reflog_expire_cfg_tail; | |
400 | ||
401 | static struct reflog_expire_cfg *find_cfg_ent(const char *pattern, size_t len) | |
4aec56d1 | 402 | { |
3cb22b8e JH |
403 | struct reflog_expire_cfg *ent; |
404 | ||
405 | if (!reflog_expire_cfg_tail) | |
406 | reflog_expire_cfg_tail = &reflog_expire_cfg; | |
407 | ||
408 | for (ent = reflog_expire_cfg; ent; ent = ent->next) | |
c3a700fb JK |
409 | if (!strncmp(ent->pattern, pattern, len) && |
410 | ent->pattern[len] == '\0') | |
3cb22b8e JH |
411 | return ent; |
412 | ||
96ffc06f | 413 | FLEX_ALLOC_MEM(ent, pattern, pattern, len); |
3cb22b8e JH |
414 | *reflog_expire_cfg_tail = ent; |
415 | reflog_expire_cfg_tail = &(ent->next); | |
416 | return ent; | |
417 | } | |
418 | ||
dddbad72 | 419 | static int parse_expire_cfg_value(const char *var, const char *value, timestamp_t *expire) |
3cb22b8e JH |
420 | { |
421 | if (!value) | |
422 | return config_error_nonbool(var); | |
3d27b9b0 | 423 | if (parse_expiry_date(value, expire)) |
99885bc0 | 424 | return error(_("'%s' for '%s' is not a valid timestamp"), |
3d27b9b0 | 425 | value, var); |
3cb22b8e JH |
426 | return 0; |
427 | } | |
428 | ||
429 | /* expiry timer slot */ | |
430 | #define EXPIRE_TOTAL 01 | |
431 | #define EXPIRE_UNREACH 02 | |
432 | ||
433 | static int reflog_expire_config(const char *var, const char *value, void *cb) | |
434 | { | |
b3873c33 JK |
435 | const char *pattern, *key; |
436 | int pattern_len; | |
dddbad72 | 437 | timestamp_t expire; |
3cb22b8e JH |
438 | int slot; |
439 | struct reflog_expire_cfg *ent; | |
440 | ||
b3873c33 | 441 | if (parse_config_key(var, "gc", &pattern, &pattern_len, &key) < 0) |
3cb22b8e JH |
442 | return git_default_config(var, value, cb); |
443 | ||
b3873c33 | 444 | if (!strcmp(key, "reflogexpire")) { |
3cb22b8e JH |
445 | slot = EXPIRE_TOTAL; |
446 | if (parse_expire_cfg_value(var, value, &expire)) | |
447 | return -1; | |
b3873c33 | 448 | } else if (!strcmp(key, "reflogexpireunreachable")) { |
3cb22b8e JH |
449 | slot = EXPIRE_UNREACH; |
450 | if (parse_expire_cfg_value(var, value, &expire)) | |
451 | return -1; | |
452 | } else | |
453 | return git_default_config(var, value, cb); | |
454 | ||
b3873c33 | 455 | if (!pattern) { |
3cb22b8e JH |
456 | switch (slot) { |
457 | case EXPIRE_TOTAL: | |
458 | default_reflog_expire = expire; | |
459 | break; | |
460 | case EXPIRE_UNREACH: | |
461 | default_reflog_expire_unreachable = expire; | |
462 | break; | |
463 | } | |
4f342b96 JH |
464 | return 0; |
465 | } | |
3cb22b8e | 466 | |
b3873c33 | 467 | ent = find_cfg_ent(pattern, pattern_len); |
3cb22b8e JH |
468 | if (!ent) |
469 | return -1; | |
470 | switch (slot) { | |
471 | case EXPIRE_TOTAL: | |
472 | ent->expire_total = expire; | |
473 | break; | |
474 | case EXPIRE_UNREACH: | |
475 | ent->expire_unreachable = expire; | |
476 | break; | |
477 | } | |
478 | return 0; | |
479 | } | |
480 | ||
481 | static void set_reflog_expiry_param(struct cmd_reflog_expire_cb *cb, int slot, const char *ref) | |
482 | { | |
483 | struct reflog_expire_cfg *ent; | |
484 | ||
485 | if (slot == (EXPIRE_TOTAL|EXPIRE_UNREACH)) | |
486 | return; /* both given explicitly -- nothing to tweak */ | |
487 | ||
488 | for (ent = reflog_expire_cfg; ent; ent = ent->next) { | |
55d34269 | 489 | if (!wildmatch(ent->pattern, ref, 0)) { |
3cb22b8e JH |
490 | if (!(slot & EXPIRE_TOTAL)) |
491 | cb->expire_total = ent->expire_total; | |
492 | if (!(slot & EXPIRE_UNREACH)) | |
493 | cb->expire_unreachable = ent->expire_unreachable; | |
494 | return; | |
495 | } | |
496 | } | |
497 | ||
60bce2bb JH |
498 | /* |
499 | * If unconfigured, make stash never expire | |
500 | */ | |
501 | if (!strcmp(ref, "refs/stash")) { | |
502 | if (!(slot & EXPIRE_TOTAL)) | |
503 | cb->expire_total = 0; | |
504 | if (!(slot & EXPIRE_UNREACH)) | |
505 | cb->expire_unreachable = 0; | |
506 | return; | |
507 | } | |
508 | ||
3cb22b8e JH |
509 | /* Nothing matched -- use the default value */ |
510 | if (!(slot & EXPIRE_TOTAL)) | |
511 | cb->expire_total = default_reflog_expire; | |
512 | if (!(slot & EXPIRE_UNREACH)) | |
513 | cb->expire_unreachable = default_reflog_expire_unreachable; | |
4aec56d1 JH |
514 | } |
515 | ||
4264dc15 JH |
516 | static int cmd_reflog_expire(int argc, const char **argv, const char *prefix) |
517 | { | |
b729effb | 518 | struct expire_reflog_policy_cb cb; |
dddbad72 | 519 | timestamp_t now = time(NULL); |
4264dc15 | 520 | int i, status, do_all; |
3cb22b8e | 521 | int explicit_expiry = 0; |
aba56c89 | 522 | unsigned int flags = 0; |
4264dc15 | 523 | |
4a9f4394 AS |
524 | default_reflog_expire_unreachable = now - 30 * 24 * 3600; |
525 | default_reflog_expire = now - 90 * 24 * 3600; | |
ef90d6d4 | 526 | git_config(reflog_expire_config, NULL); |
4aec56d1 | 527 | |
4264dc15 JH |
528 | save_commit_buffer = 0; |
529 | do_all = status = 0; | |
530 | memset(&cb, 0, sizeof(cb)); | |
4aec56d1 | 531 | |
b729effb MH |
532 | cb.cmd.expire_total = default_reflog_expire; |
533 | cb.cmd.expire_unreachable = default_reflog_expire_unreachable; | |
4264dc15 JH |
534 | |
535 | for (i = 1; i < argc; i++) { | |
536 | const char *arg = argv[i]; | |
537 | if (!strcmp(arg, "--dry-run") || !strcmp(arg, "-n")) | |
98f31d85 | 538 | flags |= EXPIRE_REFLOGS_DRY_RUN; |
59556548 | 539 | else if (starts_with(arg, "--expire=")) { |
b729effb | 540 | if (parse_expiry_date(arg + 9, &cb.cmd.expire_total)) |
3d27b9b0 | 541 | die(_("'%s' is not a valid timestamp"), arg); |
3cb22b8e JH |
542 | explicit_expiry |= EXPIRE_TOTAL; |
543 | } | |
59556548 | 544 | else if (starts_with(arg, "--expire-unreachable=")) { |
b729effb | 545 | if (parse_expiry_date(arg + 21, &cb.cmd.expire_unreachable)) |
3d27b9b0 | 546 | die(_("'%s' is not a valid timestamp"), arg); |
3cb22b8e JH |
547 | explicit_expiry |= EXPIRE_UNREACH; |
548 | } | |
1389d9dd | 549 | else if (!strcmp(arg, "--stale-fix")) |
b729effb | 550 | cb.cmd.stalefix = 1; |
2b81fab2 | 551 | else if (!strcmp(arg, "--rewrite")) |
553daf13 | 552 | flags |= EXPIRE_REFLOGS_REWRITE; |
55f10565 | 553 | else if (!strcmp(arg, "--updateref")) |
c4c4fbf8 | 554 | flags |= EXPIRE_REFLOGS_UPDATE_REF; |
4264dc15 JH |
555 | else if (!strcmp(arg, "--all")) |
556 | do_all = 1; | |
1389d9dd | 557 | else if (!strcmp(arg, "--verbose")) |
bc11155c | 558 | flags |= EXPIRE_REFLOGS_VERBOSE; |
4264dc15 JH |
559 | else if (!strcmp(arg, "--")) { |
560 | i++; | |
561 | break; | |
562 | } | |
563 | else if (arg[0] == '-') | |
564 | usage(reflog_expire_usage); | |
565 | else | |
566 | break; | |
567 | } | |
3cb22b8e JH |
568 | |
569 | /* | |
570 | * We can trust the commits and objects reachable from refs | |
571 | * even in older repository. We cannot trust what's reachable | |
572 | * from reflog if the repository was pruned with older git. | |
573 | */ | |
b729effb MH |
574 | if (cb.cmd.stalefix) { |
575 | init_revisions(&cb.cmd.revs, prefix); | |
bc11155c | 576 | if (flags & EXPIRE_REFLOGS_VERBOSE) |
1389d9dd | 577 | printf("Marking reachable objects..."); |
b729effb | 578 | mark_reachable_objects(&cb.cmd.revs, 0, 0, NULL); |
bc11155c | 579 | if (flags & EXPIRE_REFLOGS_VERBOSE) |
1389d9dd JH |
580 | putchar('\n'); |
581 | } | |
582 | ||
bda3a31c JH |
583 | if (do_all) { |
584 | struct collect_reflog_cb collected; | |
585 | int i; | |
586 | ||
587 | memset(&collected, 0, sizeof(collected)); | |
5bcad1bc | 588 | for_each_reflog(collect_reflog, &collected); |
bda3a31c JH |
589 | for (i = 0; i < collected.nr; i++) { |
590 | struct collected_reflog *e = collected.e[i]; | |
b729effb | 591 | set_reflog_expiry_param(&cb.cmd, explicit_expiry, e->reflog); |
0155f710 | 592 | status |= reflog_expire(e->reflog, &e->oid, flags, |
fa5b1830 MH |
593 | reflog_expiry_prepare, |
594 | should_expire_reflog_ent, | |
595 | reflog_expiry_cleanup, | |
596 | &cb); | |
bda3a31c JH |
597 | free(e); |
598 | } | |
599 | free(collected.e); | |
600 | } | |
601 | ||
90fb46ec PB |
602 | for (; i < argc; i++) { |
603 | char *ref; | |
b8acac54 | 604 | struct object_id oid; |
334dc52f | 605 | if (!dwim_log(argv[i], strlen(argv[i]), &oid, &ref)) { |
90fb46ec | 606 | status |= error("%s points nowhere!", argv[i]); |
4264dc15 JH |
607 | continue; |
608 | } | |
b729effb | 609 | set_reflog_expiry_param(&cb.cmd, explicit_expiry, ref); |
0155f710 | 610 | status |= reflog_expire(ref, &oid, flags, |
fa5b1830 MH |
611 | reflog_expiry_prepare, |
612 | should_expire_reflog_ent, | |
613 | reflog_expiry_cleanup, | |
614 | &cb); | |
4264dc15 JH |
615 | } |
616 | return status; | |
617 | } | |
618 | ||
9461d272 | 619 | static int count_reflog_ent(struct object_id *ooid, struct object_id *noid, |
dddbad72 | 620 | const char *email, timestamp_t timestamp, int tz, |
552cecc2 JS |
621 | const char *message, void *cb_data) |
622 | { | |
b729effb MH |
623 | struct expire_reflog_policy_cb *cb = cb_data; |
624 | if (!cb->cmd.expire_total || timestamp < cb->cmd.expire_total) | |
625 | cb->cmd.recno++; | |
552cecc2 JS |
626 | return 0; |
627 | } | |
628 | ||
629 | static int cmd_reflog_delete(int argc, const char **argv, const char *prefix) | |
630 | { | |
b729effb | 631 | struct expire_reflog_policy_cb cb; |
552cecc2 | 632 | int i, status = 0; |
aba56c89 | 633 | unsigned int flags = 0; |
552cecc2 | 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")) | |
98f31d85 | 640 | flags |= EXPIRE_REFLOGS_DRY_RUN; |
2b81fab2 | 641 | else if (!strcmp(arg, "--rewrite")) |
553daf13 | 642 | flags |= EXPIRE_REFLOGS_REWRITE; |
55f10565 | 643 | else if (!strcmp(arg, "--updateref")) |
c4c4fbf8 | 644 | flags |= EXPIRE_REFLOGS_UPDATE_REF; |
3c386aa3 | 645 | else if (!strcmp(arg, "--verbose")) |
bc11155c | 646 | flags |= EXPIRE_REFLOGS_VERBOSE; |
3c386aa3 BC |
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 | 661 | const char *spec = strstr(argv[i], "@{"); |
b8acac54 | 662 | struct object_id oid; |
552cecc2 JS |
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 | ||
334dc52f | 671 | if (!dwim_log(argv[i], spec - argv[i], &oid, &ref)) { |
55beff4f | 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 == '}') { | |
b729effb | 678 | cb.cmd.recno = -recno; |
552cecc2 JS |
679 | for_each_reflog_ent(ref, count_reflog_ent, &cb); |
680 | } else { | |
b729effb | 681 | cb.cmd.expire_total = approxidate(spec + 2); |
552cecc2 | 682 | for_each_reflog_ent(ref, count_reflog_ent, &cb); |
b729effb | 683 | cb.cmd.expire_total = 0; |
552cecc2 JS |
684 | } |
685 | ||
0155f710 | 686 | status |= reflog_expire(ref, &oid, flags, |
fa5b1830 MH |
687 | reflog_expiry_prepare, |
688 | should_expire_reflog_ent, | |
689 | reflog_expiry_cleanup, | |
690 | &cb); | |
552cecc2 JS |
691 | free(ref); |
692 | } | |
693 | return status; | |
694 | } | |
695 | ||
afcb2e7a DT |
696 | static int cmd_reflog_exists(int argc, const char **argv, const char *prefix) |
697 | { | |
698 | int i, start = 0; | |
699 | ||
700 | for (i = 1; i < argc; i++) { | |
701 | const char *arg = argv[i]; | |
702 | if (!strcmp(arg, "--")) { | |
703 | i++; | |
704 | break; | |
705 | } | |
706 | else if (arg[0] == '-') | |
707 | usage(reflog_exists_usage); | |
708 | else | |
709 | break; | |
710 | } | |
711 | ||
712 | start = i; | |
713 | ||
714 | if (argc - start != 1) | |
715 | usage(reflog_exists_usage); | |
716 | ||
717 | if (check_refname_format(argv[start], REFNAME_ALLOW_ONELEVEL)) | |
718 | die("invalid ref format: %s", argv[start]); | |
719 | return !reflog_exists(argv[start]); | |
720 | } | |
721 | ||
1389d9dd JH |
722 | /* |
723 | * main "reflog" | |
724 | */ | |
725 | ||
4264dc15 | 726 | static const char reflog_usage[] = |
afcb2e7a | 727 | "git reflog [ show | expire | delete | exists ]"; |
4264dc15 JH |
728 | |
729 | int cmd_reflog(int argc, const char **argv, const char *prefix) | |
730 | { | |
99caeed0 JN |
731 | if (argc > 1 && !strcmp(argv[1], "-h")) |
732 | usage(reflog_usage); | |
733 | ||
cf39f54e LT |
734 | /* With no command, we default to showing it. */ |
735 | if (argc < 2 || *argv[1] == '-') | |
736 | return cmd_log_reflog(argc, argv, prefix); | |
737 | ||
738 | if (!strcmp(argv[1], "show")) | |
739 | return cmd_log_reflog(argc - 1, argv + 1, prefix); | |
740 | ||
741 | if (!strcmp(argv[1], "expire")) | |
4264dc15 | 742 | return cmd_reflog_expire(argc - 1, argv + 1, prefix); |
cf39f54e | 743 | |
552cecc2 JS |
744 | if (!strcmp(argv[1], "delete")) |
745 | return cmd_reflog_delete(argc - 1, argv + 1, prefix); | |
746 | ||
afcb2e7a DT |
747 | if (!strcmp(argv[1], "exists")) |
748 | return cmd_reflog_exists(argc - 1, argv + 1, prefix); | |
749 | ||
bf01d4a3 | 750 | return cmd_log_reflog(argc, argv, prefix); |
4264dc15 | 751 | } |