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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" |
cbd53a21 | 4 | #include "object-store.h" |
109cd76d | 5 | #include "repository.h" |
4264dc15 JH |
6 | #include "commit.h" |
7 | #include "refs.h" | |
8 | #include "dir.h" | |
8d8b9f62 | 9 | #include "tree-walk.h" |
1389d9dd JH |
10 | #include "diff.h" |
11 | #include "revision.h" | |
12 | #include "reachable.h" | |
13 | ||
fe2a1816 | 14 | /* NEEDSWORK: switch to using parse_options */ |
1389d9dd | 15 | static const char reflog_expire_usage[] = |
fe2a1816 | 16 | "git reflog expire [--expire=<time>] [--expire-unreachable=<time>] [--rewrite] [--updateref] [--stale-fix] [--dry-run | -n] [--verbose] [--all] <refs>..."; |
3c386aa3 | 17 | static const char reflog_delete_usage[] = |
fe2a1816 | 18 | "git reflog delete [--rewrite] [--updateref] [--dry-run | -n] [--verbose] <refs>..."; |
afcb2e7a DT |
19 | static const char reflog_exists_usage[] = |
20 | "git reflog exists <ref>"; | |
4264dc15 | 21 | |
dddbad72 JS |
22 | static timestamp_t default_reflog_expire; |
23 | static timestamp_t default_reflog_expire_unreachable; | |
4aec56d1 | 24 | |
1389d9dd JH |
25 | struct cmd_reflog_expire_cb { |
26 | struct rev_info revs; | |
1389d9dd | 27 | int stalefix; |
dddbad72 JS |
28 | timestamp_t expire_total; |
29 | timestamp_t expire_unreachable; | |
552cecc2 | 30 | int recno; |
1389d9dd JH |
31 | }; |
32 | ||
ea7b4f6d | 33 | struct expire_reflog_policy_cb { |
03cb91b1 JH |
34 | enum { |
35 | UE_NORMAL, | |
36 | UE_ALWAYS, | |
37 | UE_HEAD | |
38 | } unreachable_expire_kind; | |
b4ca1db9 JH |
39 | struct commit_list *mark_list; |
40 | unsigned long mark_limit; | |
b729effb | 41 | struct cmd_reflog_expire_cb cmd; |
c48a1635 MH |
42 | struct commit *tip_commit; |
43 | struct commit_list *tips; | |
4264dc15 JH |
44 | }; |
45 | ||
bda3a31c | 46 | struct collected_reflog { |
b8acac54 | 47 | struct object_id oid; |
bda3a31c JH |
48 | char reflog[FLEX_ARRAY]; |
49 | }; | |
ddd64c56 | 50 | |
bda3a31c JH |
51 | struct collect_reflog_cb { |
52 | struct collected_reflog **e; | |
53 | int alloc; | |
54 | int nr; | |
55 | }; | |
56 | ||
95308d64 | 57 | /* Remember to update object flag allocation in object.h */ |
cd1f9c36 JH |
58 | #define INCOMPLETE (1u<<10) |
59 | #define STUDYING (1u<<11) | |
494fbfe8 | 60 | #define REACHABLE (1u<<12) |
cd1f9c36 | 61 | |
49a09e74 | 62 | static int tree_is_complete(const struct object_id *oid) |
8d8b9f62 JH |
63 | { |
64 | struct tree_desc desc; | |
cd1f9c36 JH |
65 | struct name_entry entry; |
66 | int complete; | |
67 | struct tree *tree; | |
8d8b9f62 | 68 | |
f86bcc7b | 69 | tree = lookup_tree(the_repository, oid); |
cd1f9c36 | 70 | if (!tree) |
8d8b9f62 | 71 | return 0; |
cd1f9c36 JH |
72 | if (tree->object.flags & SEEN) |
73 | return 1; | |
74 | if (tree->object.flags & INCOMPLETE) | |
75 | return 0; | |
76 | ||
6fda5e51 | 77 | if (!tree->buffer) { |
21666f1a | 78 | enum object_type type; |
6fda5e51 | 79 | unsigned long size; |
b4f5aca4 | 80 | void *data = read_object_file(oid, &type, &size); |
cd1f9c36 JH |
81 | if (!data) { |
82 | tree->object.flags |= INCOMPLETE; | |
8d8b9f62 JH |
83 | return 0; |
84 | } | |
cd1f9c36 | 85 | tree->buffer = data; |
6fda5e51 | 86 | tree->size = size; |
8d8b9f62 | 87 | } |
6fda5e51 | 88 | init_tree_desc(&desc, tree->buffer, tree->size); |
cd1f9c36 JH |
89 | complete = 1; |
90 | while (tree_entry(&desc, &entry)) { | |
7d924c91 | 91 | if (!has_sha1_file(entry.oid->hash) || |
49a09e74 | 92 | (S_ISDIR(entry.mode) && !tree_is_complete(entry.oid))) { |
cd1f9c36 JH |
93 | tree->object.flags |= INCOMPLETE; |
94 | complete = 0; | |
95 | } | |
96 | } | |
6e454b9a | 97 | free_tree_buffer(tree); |
8d8b9f62 | 98 | |
cd1f9c36 JH |
99 | if (complete) |
100 | tree->object.flags |= SEEN; | |
101 | return complete; | |
102 | } | |
1389d9dd JH |
103 | |
104 | static int commit_is_complete(struct commit *commit) | |
105 | { | |
106 | struct object_array study; | |
107 | struct object_array found; | |
108 | int is_incomplete = 0; | |
109 | int i; | |
110 | ||
111 | /* early return */ | |
112 | if (commit->object.flags & SEEN) | |
113 | return 1; | |
114 | if (commit->object.flags & INCOMPLETE) | |
115 | return 0; | |
116 | /* | |
117 | * Find all commits that are reachable and are not marked as | |
118 | * SEEN. Then make sure the trees and blobs contained are | |
119 | * complete. After that, mark these commits also as SEEN. | |
120 | * If some of the objects that are needed to complete this | |
121 | * commit are missing, mark this commit as INCOMPLETE. | |
122 | */ | |
123 | memset(&study, 0, sizeof(study)); | |
124 | memset(&found, 0, sizeof(found)); | |
125 | add_object_array(&commit->object, NULL, &study); | |
126 | add_object_array(&commit->object, NULL, &found); | |
127 | commit->object.flags |= STUDYING; | |
128 | while (study.nr) { | |
129 | struct commit *c; | |
130 | struct commit_list *parent; | |
131 | ||
71992039 | 132 | c = (struct commit *)object_array_pop(&study); |
109cd76d | 133 | if (!c->object.parsed && !parse_object(the_repository, &c->object.oid)) |
1389d9dd JH |
134 | c->object.flags |= INCOMPLETE; |
135 | ||
136 | if (c->object.flags & INCOMPLETE) { | |
137 | is_incomplete = 1; | |
138 | break; | |
139 | } | |
140 | else if (c->object.flags & SEEN) | |
141 | continue; | |
142 | for (parent = c->parents; parent; parent = parent->next) { | |
143 | struct commit *p = parent->item; | |
144 | if (p->object.flags & STUDYING) | |
145 | continue; | |
146 | p->object.flags |= STUDYING; | |
147 | add_object_array(&p->object, NULL, &study); | |
148 | add_object_array(&p->object, NULL, &found); | |
149 | } | |
150 | } | |
151 | if (!is_incomplete) { | |
cd1f9c36 JH |
152 | /* |
153 | * make sure all commits in "found" array have all the | |
1389d9dd JH |
154 | * necessary objects. |
155 | */ | |
cd1f9c36 | 156 | for (i = 0; i < found.nr; i++) { |
1389d9dd JH |
157 | struct commit *c = |
158 | (struct commit *)found.objects[i].item; | |
2e27bd77 | 159 | if (!tree_is_complete(get_commit_tree_oid(c))) { |
1389d9dd | 160 | is_incomplete = 1; |
cd1f9c36 JH |
161 | c->object.flags |= INCOMPLETE; |
162 | } | |
1389d9dd JH |
163 | } |
164 | if (!is_incomplete) { | |
165 | /* mark all found commits as complete, iow SEEN */ | |
166 | for (i = 0; i < found.nr; i++) | |
167 | found.objects[i].item->flags |= SEEN; | |
168 | } | |
169 | } | |
170 | /* clear flags from the objects we traversed */ | |
171 | for (i = 0; i < found.nr; i++) | |
172 | found.objects[i].item->flags &= ~STUDYING; | |
173 | if (is_incomplete) | |
174 | commit->object.flags |= INCOMPLETE; | |
cd1f9c36 JH |
175 | else { |
176 | /* | |
177 | * If we come here, we have (1) traversed the ancestry chain | |
178 | * from the "commit" until we reach SEEN commits (which are | |
179 | * known to be complete), and (2) made sure that the commits | |
180 | * encountered during the above traversal refer to trees that | |
181 | * are complete. Which means that we know *all* the commits | |
182 | * we have seen during this process are complete. | |
183 | */ | |
184 | for (i = 0; i < found.nr; i++) | |
185 | found.objects[i].item->flags |= SEEN; | |
186 | } | |
1389d9dd | 187 | /* free object arrays */ |
dcb572ab MÅ |
188 | object_array_clear(&study); |
189 | object_array_clear(&found); | |
1389d9dd JH |
190 | return !is_incomplete; |
191 | } | |
192 | ||
4322478a | 193 | static int keep_entry(struct commit **it, struct object_id *oid) |
4264dc15 | 194 | { |
8d8b9f62 JH |
195 | struct commit *commit; |
196 | ||
4322478a | 197 | if (is_null_oid(oid)) |
4264dc15 | 198 | return 1; |
21e1ee8f | 199 | commit = lookup_commit_reference_gently(the_repository, oid, 1); |
8d8b9f62 JH |
200 | if (!commit) |
201 | return 0; | |
202 | ||
1389d9dd JH |
203 | /* |
204 | * Make sure everything in this commit exists. | |
205 | * | |
206 | * We have walked all the objects reachable from the refs | |
207 | * and cache earlier. The commits reachable by this commit | |
208 | * must meet SEEN commits -- and then we should mark them as | |
209 | * SEEN as well. | |
210 | */ | |
211 | if (!commit_is_complete(commit)) | |
8d8b9f62 JH |
212 | return 0; |
213 | *it = commit; | |
214 | return 1; | |
4264dc15 JH |
215 | } |
216 | ||
b4ca1db9 JH |
217 | /* |
218 | * Starting from commits in the cb->mark_list, mark commits that are | |
219 | * reachable from them. Stop the traversal at commits older than | |
220 | * the expire_limit and queue them back, so that the caller can call | |
221 | * us again to restart the traversal with longer expire_limit. | |
222 | */ | |
ea7b4f6d | 223 | static void mark_reachable(struct expire_reflog_policy_cb *cb) |
666e07e6 | 224 | { |
b4ca1db9 | 225 | struct commit_list *pending; |
dddbad72 | 226 | timestamp_t expire_limit = cb->mark_limit; |
b4ca1db9 | 227 | struct commit_list *leftover = NULL; |
666e07e6 | 228 | |
b4ca1db9 JH |
229 | for (pending = cb->mark_list; pending; pending = pending->next) |
230 | pending->item->object.flags &= ~REACHABLE; | |
494fbfe8 | 231 | |
b4ca1db9 | 232 | pending = cb->mark_list; |
494fbfe8 | 233 | while (pending) { |
494fbfe8 | 234 | struct commit_list *parent; |
e510ab89 | 235 | struct commit *commit = pop_commit(&pending); |
494fbfe8 JH |
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 | ||
4322478a | 258 | static int unreachable(struct expire_reflog_policy_cb *cb, struct commit *commit, struct object_id *oid) |
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) { | |
4322478a | 265 | if (is_null_oid(oid)) |
b4ca1db9 JH |
266 | return 0; |
267 | ||
21e1ee8f SB |
268 | commit = lookup_commit_reference_gently(the_repository, oid, |
269 | 1); | |
b4ca1db9 JH |
270 | |
271 | /* Not a commit -- keep it */ | |
272 | if (!commit) | |
273 | return 0; | |
274 | } | |
275 | ||
276 | /* Reachable from the current ref? Don't prune. */ | |
277 | if (commit->object.flags & REACHABLE) | |
278 | return 0; | |
279 | ||
280 | if (cb->mark_list && cb->mark_limit) { | |
281 | cb->mark_limit = 0; /* dig down to the root */ | |
282 | mark_reachable(cb); | |
283 | } | |
284 | ||
285 | return !(commit->object.flags & REACHABLE); | |
494fbfe8 JH |
286 | } |
287 | ||
60cc3c40 MH |
288 | /* |
289 | * Return true iff the specified reflog entry should be expired. | |
290 | */ | |
4322478a | 291 | static int should_expire_reflog_ent(struct object_id *ooid, struct object_id *noid, |
dddbad72 | 292 | const char *email, timestamp_t timestamp, int tz, |
60cc3c40 | 293 | const char *message, void *cb_data) |
4264dc15 | 294 | { |
ea7b4f6d | 295 | struct expire_reflog_policy_cb *cb = cb_data; |
dfa5990d | 296 | struct commit *old_commit, *new_commit; |
4264dc15 | 297 | |
b729effb | 298 | if (timestamp < cb->cmd.expire_total) |
60cc3c40 | 299 | return 1; |
2b81fab2 | 300 | |
dfa5990d | 301 | old_commit = new_commit = NULL; |
b729effb | 302 | if (cb->cmd.stalefix && |
dfa5990d | 303 | (!keep_entry(&old_commit, ooid) || !keep_entry(&new_commit, noid))) |
60cc3c40 | 304 | return 1; |
4264dc15 | 305 | |
b729effb | 306 | if (timestamp < cb->cmd.expire_unreachable) { |
03cb91b1 | 307 | if (cb->unreachable_expire_kind == UE_ALWAYS) |
60cc3c40 | 308 | return 1; |
dfa5990d | 309 | if (unreachable(cb, old_commit, ooid) || unreachable(cb, new_commit, noid)) |
60cc3c40 | 310 | return 1; |
9bbaa6cc | 311 | } |
4264dc15 | 312 | |
b729effb | 313 | if (cb->cmd.recno && --(cb->cmd.recno) == 0) |
60cc3c40 MH |
314 | return 1; |
315 | ||
4264dc15 | 316 | return 0; |
60cc3c40 MH |
317 | } |
318 | ||
5bcad1bc | 319 | static int push_tip_to_list(const char *refname, const struct object_id *oid, |
ea7b4f6d | 320 | int flags, void *cb_data) |
03cb91b1 JH |
321 | { |
322 | struct commit_list **list = cb_data; | |
323 | struct commit *tip_commit; | |
324 | if (flags & REF_ISSYMREF) | |
325 | return 0; | |
21e1ee8f | 326 | tip_commit = lookup_commit_reference_gently(the_repository, oid, 1); |
03cb91b1 JH |
327 | if (!tip_commit) |
328 | return 0; | |
329 | commit_list_insert(tip_commit, list); | |
330 | return 0; | |
331 | } | |
332 | ||
c48a1635 | 333 | static void reflog_expiry_prepare(const char *refname, |
4322478a | 334 | const struct object_id *oid, |
b729effb | 335 | void *cb_data) |
c48a1635 | 336 | { |
b729effb MH |
337 | struct expire_reflog_policy_cb *cb = cb_data; |
338 | ||
339 | if (!cb->cmd.expire_unreachable || !strcmp(refname, "HEAD")) { | |
c48a1635 MH |
340 | cb->tip_commit = NULL; |
341 | cb->unreachable_expire_kind = UE_HEAD; | |
342 | } else { | |
21e1ee8f SB |
343 | cb->tip_commit = lookup_commit_reference_gently(the_repository, |
344 | oid, 1); | |
c48a1635 MH |
345 | if (!cb->tip_commit) |
346 | cb->unreachable_expire_kind = UE_ALWAYS; | |
347 | else | |
348 | cb->unreachable_expire_kind = UE_NORMAL; | |
349 | } | |
350 | ||
b729effb | 351 | if (cb->cmd.expire_unreachable <= cb->cmd.expire_total) |
c48a1635 MH |
352 | cb->unreachable_expire_kind = UE_ALWAYS; |
353 | ||
354 | cb->mark_list = NULL; | |
355 | cb->tips = NULL; | |
356 | if (cb->unreachable_expire_kind != UE_ALWAYS) { | |
357 | if (cb->unreachable_expire_kind == UE_HEAD) { | |
358 | struct commit_list *elem; | |
2b2a5be3 | 359 | |
5bcad1bc | 360 | for_each_ref(push_tip_to_list, &cb->tips); |
c48a1635 MH |
361 | for (elem = cb->tips; elem; elem = elem->next) |
362 | commit_list_insert(elem->item, &cb->mark_list); | |
363 | } else { | |
364 | commit_list_insert(cb->tip_commit, &cb->mark_list); | |
365 | } | |
b729effb | 366 | cb->mark_limit = cb->cmd.expire_total; |
c48a1635 MH |
367 | mark_reachable(cb); |
368 | } | |
369 | } | |
370 | ||
b729effb | 371 | static void reflog_expiry_cleanup(void *cb_data) |
c48a1635 | 372 | { |
b729effb MH |
373 | struct expire_reflog_policy_cb *cb = cb_data; |
374 | ||
c48a1635 MH |
375 | if (cb->unreachable_expire_kind != UE_ALWAYS) { |
376 | if (cb->unreachable_expire_kind == UE_HEAD) { | |
377 | struct commit_list *elem; | |
378 | for (elem = cb->tips; elem; elem = elem->next) | |
379 | clear_commit_marks(elem->item, REACHABLE); | |
380 | free_commit_list(cb->tips); | |
381 | } else { | |
382 | clear_commit_marks(cb->tip_commit, REACHABLE); | |
383 | } | |
384 | } | |
385 | } | |
386 | ||
5bcad1bc | 387 | static int collect_reflog(const char *ref, const struct object_id *oid, int unused, void *cb_data) |
bda3a31c JH |
388 | { |
389 | struct collected_reflog *e; | |
390 | struct collect_reflog_cb *cb = cb_data; | |
bda3a31c | 391 | |
96ffc06f | 392 | FLEX_ALLOC_STR(e, reflog, ref); |
b8acac54 | 393 | oidcpy(&e->oid, oid); |
bda3a31c JH |
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; | |
dddbad72 JS |
401 | timestamp_t expire_total; |
402 | timestamp_t expire_unreachable; | |
3cb22b8e JH |
403 | char pattern[FLEX_ARRAY]; |
404 | } *reflog_expire_cfg, **reflog_expire_cfg_tail; | |
405 | ||
406 | static struct reflog_expire_cfg *find_cfg_ent(const char *pattern, size_t len) | |
4aec56d1 | 407 | { |
3cb22b8e JH |
408 | struct reflog_expire_cfg *ent; |
409 | ||
410 | if (!reflog_expire_cfg_tail) | |
411 | reflog_expire_cfg_tail = &reflog_expire_cfg; | |
412 | ||
413 | for (ent = reflog_expire_cfg; ent; ent = ent->next) | |
c3a700fb JK |
414 | if (!strncmp(ent->pattern, pattern, len) && |
415 | ent->pattern[len] == '\0') | |
3cb22b8e JH |
416 | return ent; |
417 | ||
96ffc06f | 418 | FLEX_ALLOC_MEM(ent, pattern, pattern, len); |
3cb22b8e JH |
419 | *reflog_expire_cfg_tail = ent; |
420 | reflog_expire_cfg_tail = &(ent->next); | |
421 | return ent; | |
422 | } | |
423 | ||
3cb22b8e JH |
424 | /* expiry timer slot */ |
425 | #define EXPIRE_TOTAL 01 | |
426 | #define EXPIRE_UNREACH 02 | |
427 | ||
428 | static int reflog_expire_config(const char *var, const char *value, void *cb) | |
429 | { | |
b3873c33 JK |
430 | const char *pattern, *key; |
431 | int pattern_len; | |
dddbad72 | 432 | timestamp_t expire; |
3cb22b8e JH |
433 | int slot; |
434 | struct reflog_expire_cfg *ent; | |
435 | ||
b3873c33 | 436 | if (parse_config_key(var, "gc", &pattern, &pattern_len, &key) < 0) |
3cb22b8e JH |
437 | return git_default_config(var, value, cb); |
438 | ||
b3873c33 | 439 | if (!strcmp(key, "reflogexpire")) { |
3cb22b8e | 440 | slot = EXPIRE_TOTAL; |
5f967424 | 441 | if (git_config_expiry_date(&expire, var, value)) |
3cb22b8e | 442 | return -1; |
b3873c33 | 443 | } else if (!strcmp(key, "reflogexpireunreachable")) { |
3cb22b8e | 444 | slot = EXPIRE_UNREACH; |
5f967424 | 445 | if (git_config_expiry_date(&expire, var, value)) |
3cb22b8e JH |
446 | return -1; |
447 | } else | |
448 | return git_default_config(var, value, cb); | |
449 | ||
b3873c33 | 450 | if (!pattern) { |
3cb22b8e JH |
451 | switch (slot) { |
452 | case EXPIRE_TOTAL: | |
453 | default_reflog_expire = expire; | |
454 | break; | |
455 | case EXPIRE_UNREACH: | |
456 | default_reflog_expire_unreachable = expire; | |
457 | break; | |
458 | } | |
4f342b96 JH |
459 | return 0; |
460 | } | |
3cb22b8e | 461 | |
b3873c33 | 462 | ent = find_cfg_ent(pattern, pattern_len); |
3cb22b8e JH |
463 | if (!ent) |
464 | return -1; | |
465 | switch (slot) { | |
466 | case EXPIRE_TOTAL: | |
467 | ent->expire_total = expire; | |
468 | break; | |
469 | case EXPIRE_UNREACH: | |
470 | ent->expire_unreachable = expire; | |
471 | break; | |
472 | } | |
473 | return 0; | |
474 | } | |
475 | ||
476 | static void set_reflog_expiry_param(struct cmd_reflog_expire_cb *cb, int slot, const char *ref) | |
477 | { | |
478 | struct reflog_expire_cfg *ent; | |
479 | ||
480 | if (slot == (EXPIRE_TOTAL|EXPIRE_UNREACH)) | |
481 | return; /* both given explicitly -- nothing to tweak */ | |
482 | ||
483 | for (ent = reflog_expire_cfg; ent; ent = ent->next) { | |
55d34269 | 484 | if (!wildmatch(ent->pattern, ref, 0)) { |
3cb22b8e JH |
485 | if (!(slot & EXPIRE_TOTAL)) |
486 | cb->expire_total = ent->expire_total; | |
487 | if (!(slot & EXPIRE_UNREACH)) | |
488 | cb->expire_unreachable = ent->expire_unreachable; | |
489 | return; | |
490 | } | |
491 | } | |
492 | ||
60bce2bb JH |
493 | /* |
494 | * If unconfigured, make stash never expire | |
495 | */ | |
496 | if (!strcmp(ref, "refs/stash")) { | |
497 | if (!(slot & EXPIRE_TOTAL)) | |
498 | cb->expire_total = 0; | |
499 | if (!(slot & EXPIRE_UNREACH)) | |
500 | cb->expire_unreachable = 0; | |
501 | return; | |
502 | } | |
503 | ||
3cb22b8e JH |
504 | /* Nothing matched -- use the default value */ |
505 | if (!(slot & EXPIRE_TOTAL)) | |
506 | cb->expire_total = default_reflog_expire; | |
507 | if (!(slot & EXPIRE_UNREACH)) | |
508 | cb->expire_unreachable = default_reflog_expire_unreachable; | |
4aec56d1 JH |
509 | } |
510 | ||
4264dc15 JH |
511 | static int cmd_reflog_expire(int argc, const char **argv, const char *prefix) |
512 | { | |
b729effb | 513 | struct expire_reflog_policy_cb cb; |
dddbad72 | 514 | timestamp_t now = time(NULL); |
4264dc15 | 515 | int i, status, do_all; |
3cb22b8e | 516 | int explicit_expiry = 0; |
aba56c89 | 517 | unsigned int flags = 0; |
4264dc15 | 518 | |
4a9f4394 AS |
519 | default_reflog_expire_unreachable = now - 30 * 24 * 3600; |
520 | default_reflog_expire = now - 90 * 24 * 3600; | |
ef90d6d4 | 521 | git_config(reflog_expire_config, NULL); |
4aec56d1 | 522 | |
4264dc15 JH |
523 | save_commit_buffer = 0; |
524 | do_all = status = 0; | |
525 | memset(&cb, 0, sizeof(cb)); | |
4aec56d1 | 526 | |
b729effb MH |
527 | cb.cmd.expire_total = default_reflog_expire; |
528 | cb.cmd.expire_unreachable = default_reflog_expire_unreachable; | |
4264dc15 JH |
529 | |
530 | for (i = 1; i < argc; i++) { | |
531 | const char *arg = argv[i]; | |
532 | if (!strcmp(arg, "--dry-run") || !strcmp(arg, "-n")) | |
98f31d85 | 533 | flags |= EXPIRE_REFLOGS_DRY_RUN; |
59556548 | 534 | else if (starts_with(arg, "--expire=")) { |
b729effb | 535 | if (parse_expiry_date(arg + 9, &cb.cmd.expire_total)) |
3d27b9b0 | 536 | die(_("'%s' is not a valid timestamp"), arg); |
3cb22b8e JH |
537 | explicit_expiry |= EXPIRE_TOTAL; |
538 | } | |
59556548 | 539 | else if (starts_with(arg, "--expire-unreachable=")) { |
b729effb | 540 | if (parse_expiry_date(arg + 21, &cb.cmd.expire_unreachable)) |
3d27b9b0 | 541 | die(_("'%s' is not a valid timestamp"), arg); |
3cb22b8e JH |
542 | explicit_expiry |= EXPIRE_UNREACH; |
543 | } | |
1389d9dd | 544 | else if (!strcmp(arg, "--stale-fix")) |
b729effb | 545 | cb.cmd.stalefix = 1; |
2b81fab2 | 546 | else if (!strcmp(arg, "--rewrite")) |
553daf13 | 547 | flags |= EXPIRE_REFLOGS_REWRITE; |
55f10565 | 548 | else if (!strcmp(arg, "--updateref")) |
c4c4fbf8 | 549 | flags |= EXPIRE_REFLOGS_UPDATE_REF; |
4264dc15 JH |
550 | else if (!strcmp(arg, "--all")) |
551 | do_all = 1; | |
1389d9dd | 552 | else if (!strcmp(arg, "--verbose")) |
bc11155c | 553 | flags |= EXPIRE_REFLOGS_VERBOSE; |
4264dc15 JH |
554 | else if (!strcmp(arg, "--")) { |
555 | i++; | |
556 | break; | |
557 | } | |
558 | else if (arg[0] == '-') | |
559 | usage(reflog_expire_usage); | |
560 | else | |
561 | break; | |
562 | } | |
3cb22b8e JH |
563 | |
564 | /* | |
565 | * We can trust the commits and objects reachable from refs | |
566 | * even in older repository. We cannot trust what's reachable | |
567 | * from reflog if the repository was pruned with older git. | |
568 | */ | |
b729effb MH |
569 | if (cb.cmd.stalefix) { |
570 | init_revisions(&cb.cmd.revs, prefix); | |
bc11155c | 571 | if (flags & EXPIRE_REFLOGS_VERBOSE) |
1389d9dd | 572 | printf("Marking reachable objects..."); |
b729effb | 573 | mark_reachable_objects(&cb.cmd.revs, 0, 0, NULL); |
bc11155c | 574 | if (flags & EXPIRE_REFLOGS_VERBOSE) |
1389d9dd JH |
575 | putchar('\n'); |
576 | } | |
577 | ||
bda3a31c JH |
578 | if (do_all) { |
579 | struct collect_reflog_cb collected; | |
580 | int i; | |
581 | ||
582 | memset(&collected, 0, sizeof(collected)); | |
5bcad1bc | 583 | for_each_reflog(collect_reflog, &collected); |
bda3a31c JH |
584 | for (i = 0; i < collected.nr; i++) { |
585 | struct collected_reflog *e = collected.e[i]; | |
b729effb | 586 | set_reflog_expiry_param(&cb.cmd, explicit_expiry, e->reflog); |
0155f710 | 587 | status |= reflog_expire(e->reflog, &e->oid, flags, |
fa5b1830 MH |
588 | reflog_expiry_prepare, |
589 | should_expire_reflog_ent, | |
590 | reflog_expiry_cleanup, | |
591 | &cb); | |
bda3a31c JH |
592 | free(e); |
593 | } | |
594 | free(collected.e); | |
595 | } | |
596 | ||
90fb46ec PB |
597 | for (; i < argc; i++) { |
598 | char *ref; | |
b8acac54 | 599 | struct object_id oid; |
334dc52f | 600 | if (!dwim_log(argv[i], strlen(argv[i]), &oid, &ref)) { |
90fb46ec | 601 | status |= error("%s points nowhere!", argv[i]); |
4264dc15 JH |
602 | continue; |
603 | } | |
b729effb | 604 | set_reflog_expiry_param(&cb.cmd, explicit_expiry, ref); |
0155f710 | 605 | status |= reflog_expire(ref, &oid, flags, |
fa5b1830 MH |
606 | reflog_expiry_prepare, |
607 | should_expire_reflog_ent, | |
608 | reflog_expiry_cleanup, | |
609 | &cb); | |
4264dc15 JH |
610 | } |
611 | return status; | |
612 | } | |
613 | ||
9461d272 | 614 | static int count_reflog_ent(struct object_id *ooid, struct object_id *noid, |
dddbad72 | 615 | const char *email, timestamp_t timestamp, int tz, |
552cecc2 JS |
616 | const char *message, void *cb_data) |
617 | { | |
b729effb MH |
618 | struct expire_reflog_policy_cb *cb = cb_data; |
619 | if (!cb->cmd.expire_total || timestamp < cb->cmd.expire_total) | |
620 | cb->cmd.recno++; | |
552cecc2 JS |
621 | return 0; |
622 | } | |
623 | ||
624 | static int cmd_reflog_delete(int argc, const char **argv, const char *prefix) | |
625 | { | |
b729effb | 626 | struct expire_reflog_policy_cb cb; |
552cecc2 | 627 | int i, status = 0; |
aba56c89 | 628 | unsigned int flags = 0; |
552cecc2 | 629 | |
552cecc2 JS |
630 | memset(&cb, 0, sizeof(cb)); |
631 | ||
632 | for (i = 1; i < argc; i++) { | |
3c386aa3 BC |
633 | const char *arg = argv[i]; |
634 | if (!strcmp(arg, "--dry-run") || !strcmp(arg, "-n")) | |
98f31d85 | 635 | flags |= EXPIRE_REFLOGS_DRY_RUN; |
2b81fab2 | 636 | else if (!strcmp(arg, "--rewrite")) |
553daf13 | 637 | flags |= EXPIRE_REFLOGS_REWRITE; |
55f10565 | 638 | else if (!strcmp(arg, "--updateref")) |
c4c4fbf8 | 639 | flags |= EXPIRE_REFLOGS_UPDATE_REF; |
3c386aa3 | 640 | else if (!strcmp(arg, "--verbose")) |
bc11155c | 641 | flags |= EXPIRE_REFLOGS_VERBOSE; |
3c386aa3 BC |
642 | else if (!strcmp(arg, "--")) { |
643 | i++; | |
644 | break; | |
645 | } | |
646 | else if (arg[0] == '-') | |
647 | usage(reflog_delete_usage); | |
648 | else | |
649 | break; | |
650 | } | |
651 | ||
652 | if (argc - i < 1) | |
653 | return error("Nothing to delete?"); | |
654 | ||
655 | for ( ; i < argc; i++) { | |
552cecc2 | 656 | const char *spec = strstr(argv[i], "@{"); |
b8acac54 | 657 | struct object_id oid; |
552cecc2 JS |
658 | char *ep, *ref; |
659 | int recno; | |
660 | ||
661 | if (!spec) { | |
cb97cc9f | 662 | status |= error("Not a reflog: %s", argv[i]); |
552cecc2 JS |
663 | continue; |
664 | } | |
665 | ||
334dc52f | 666 | if (!dwim_log(argv[i], spec - argv[i], &oid, &ref)) { |
55beff4f | 667 | status |= error("no reflog for '%s'", argv[i]); |
552cecc2 JS |
668 | continue; |
669 | } | |
670 | ||
671 | recno = strtoul(spec + 2, &ep, 10); | |
672 | if (*ep == '}') { | |
b729effb | 673 | cb.cmd.recno = -recno; |
552cecc2 JS |
674 | for_each_reflog_ent(ref, count_reflog_ent, &cb); |
675 | } else { | |
b729effb | 676 | cb.cmd.expire_total = approxidate(spec + 2); |
552cecc2 | 677 | for_each_reflog_ent(ref, count_reflog_ent, &cb); |
b729effb | 678 | cb.cmd.expire_total = 0; |
552cecc2 JS |
679 | } |
680 | ||
0155f710 | 681 | status |= reflog_expire(ref, &oid, flags, |
fa5b1830 MH |
682 | reflog_expiry_prepare, |
683 | should_expire_reflog_ent, | |
684 | reflog_expiry_cleanup, | |
685 | &cb); | |
552cecc2 JS |
686 | free(ref); |
687 | } | |
688 | return status; | |
689 | } | |
690 | ||
afcb2e7a DT |
691 | static int cmd_reflog_exists(int argc, const char **argv, const char *prefix) |
692 | { | |
693 | int i, start = 0; | |
694 | ||
695 | for (i = 1; i < argc; i++) { | |
696 | const char *arg = argv[i]; | |
697 | if (!strcmp(arg, "--")) { | |
698 | i++; | |
699 | break; | |
700 | } | |
701 | else if (arg[0] == '-') | |
702 | usage(reflog_exists_usage); | |
703 | else | |
704 | break; | |
705 | } | |
706 | ||
707 | start = i; | |
708 | ||
709 | if (argc - start != 1) | |
710 | usage(reflog_exists_usage); | |
711 | ||
712 | if (check_refname_format(argv[start], REFNAME_ALLOW_ONELEVEL)) | |
713 | die("invalid ref format: %s", argv[start]); | |
714 | return !reflog_exists(argv[start]); | |
715 | } | |
716 | ||
1389d9dd JH |
717 | /* |
718 | * main "reflog" | |
719 | */ | |
720 | ||
4264dc15 | 721 | static const char reflog_usage[] = |
afcb2e7a | 722 | "git reflog [ show | expire | delete | exists ]"; |
4264dc15 JH |
723 | |
724 | int cmd_reflog(int argc, const char **argv, const char *prefix) | |
725 | { | |
99caeed0 JN |
726 | if (argc > 1 && !strcmp(argv[1], "-h")) |
727 | usage(reflog_usage); | |
728 | ||
cf39f54e LT |
729 | /* With no command, we default to showing it. */ |
730 | if (argc < 2 || *argv[1] == '-') | |
731 | return cmd_log_reflog(argc, argv, prefix); | |
732 | ||
733 | if (!strcmp(argv[1], "show")) | |
734 | return cmd_log_reflog(argc - 1, argv + 1, prefix); | |
735 | ||
736 | if (!strcmp(argv[1], "expire")) | |
4264dc15 | 737 | return cmd_reflog_expire(argc - 1, argv + 1, prefix); |
cf39f54e | 738 | |
552cecc2 JS |
739 | if (!strcmp(argv[1], "delete")) |
740 | return cmd_reflog_delete(argc - 1, argv + 1, prefix); | |
741 | ||
afcb2e7a DT |
742 | if (!strcmp(argv[1], "exists")) |
743 | return cmd_reflog_exists(argc - 1, argv + 1, prefix); | |
744 | ||
bf01d4a3 | 745 | return cmd_log_reflog(argc, argv, prefix); |
4264dc15 | 746 | } |