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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" | |
c9ef0d95 | 13 | #include "worktree.h" |
1389d9dd | 14 | |
afcb2e7a | 15 | static const char reflog_exists_usage[] = |
dd509db3 | 16 | N_("git reflog exists <ref>"); |
4264dc15 | 17 | |
dddbad72 JS |
18 | static timestamp_t default_reflog_expire; |
19 | static timestamp_t default_reflog_expire_unreachable; | |
4aec56d1 | 20 | |
1389d9dd | 21 | struct cmd_reflog_expire_cb { |
1389d9dd | 22 | int stalefix; |
33d7bdd6 | 23 | int explicit_expiry; |
dddbad72 JS |
24 | timestamp_t expire_total; |
25 | timestamp_t expire_unreachable; | |
552cecc2 | 26 | int recno; |
1389d9dd JH |
27 | }; |
28 | ||
ea7b4f6d | 29 | struct expire_reflog_policy_cb { |
03cb91b1 JH |
30 | enum { |
31 | UE_NORMAL, | |
32 | UE_ALWAYS, | |
33 | UE_HEAD | |
34 | } unreachable_expire_kind; | |
b4ca1db9 JH |
35 | struct commit_list *mark_list; |
36 | unsigned long mark_limit; | |
b729effb | 37 | struct cmd_reflog_expire_cb cmd; |
c48a1635 MH |
38 | struct commit *tip_commit; |
39 | struct commit_list *tips; | |
fcd2c3d9 | 40 | unsigned int dry_run:1; |
4264dc15 JH |
41 | }; |
42 | ||
f2919bae ÆAB |
43 | struct worktree_reflogs { |
44 | struct worktree *worktree; | |
45 | struct string_list reflogs; | |
bda3a31c JH |
46 | }; |
47 | ||
95308d64 | 48 | /* Remember to update object flag allocation in object.h */ |
cd1f9c36 JH |
49 | #define INCOMPLETE (1u<<10) |
50 | #define STUDYING (1u<<11) | |
494fbfe8 | 51 | #define REACHABLE (1u<<12) |
cd1f9c36 | 52 | |
49a09e74 | 53 | static int tree_is_complete(const struct object_id *oid) |
8d8b9f62 JH |
54 | { |
55 | struct tree_desc desc; | |
cd1f9c36 JH |
56 | struct name_entry entry; |
57 | int complete; | |
58 | struct tree *tree; | |
8d8b9f62 | 59 | |
f86bcc7b | 60 | tree = lookup_tree(the_repository, oid); |
cd1f9c36 | 61 | if (!tree) |
8d8b9f62 | 62 | return 0; |
cd1f9c36 JH |
63 | if (tree->object.flags & SEEN) |
64 | return 1; | |
65 | if (tree->object.flags & INCOMPLETE) | |
66 | return 0; | |
67 | ||
6fda5e51 | 68 | if (!tree->buffer) { |
21666f1a | 69 | enum object_type type; |
6fda5e51 | 70 | unsigned long size; |
b4f5aca4 | 71 | void *data = read_object_file(oid, &type, &size); |
cd1f9c36 JH |
72 | if (!data) { |
73 | tree->object.flags |= INCOMPLETE; | |
8d8b9f62 JH |
74 | return 0; |
75 | } | |
cd1f9c36 | 76 | tree->buffer = data; |
6fda5e51 | 77 | tree->size = size; |
8d8b9f62 | 78 | } |
6fda5e51 | 79 | init_tree_desc(&desc, tree->buffer, tree->size); |
cd1f9c36 JH |
80 | complete = 1; |
81 | while (tree_entry(&desc, &entry)) { | |
cba595ab | 82 | if (!has_object_file(&entry.oid) || |
ea82b2a0 | 83 | (S_ISDIR(entry.mode) && !tree_is_complete(&entry.oid))) { |
cd1f9c36 JH |
84 | tree->object.flags |= INCOMPLETE; |
85 | complete = 0; | |
86 | } | |
87 | } | |
6e454b9a | 88 | free_tree_buffer(tree); |
8d8b9f62 | 89 | |
cd1f9c36 JH |
90 | if (complete) |
91 | tree->object.flags |= SEEN; | |
92 | return complete; | |
93 | } | |
1389d9dd JH |
94 | |
95 | static int commit_is_complete(struct commit *commit) | |
96 | { | |
97 | struct object_array study; | |
98 | struct object_array found; | |
99 | int is_incomplete = 0; | |
100 | int i; | |
101 | ||
102 | /* early return */ | |
103 | if (commit->object.flags & SEEN) | |
104 | return 1; | |
105 | if (commit->object.flags & INCOMPLETE) | |
106 | return 0; | |
107 | /* | |
108 | * Find all commits that are reachable and are not marked as | |
109 | * SEEN. Then make sure the trees and blobs contained are | |
110 | * complete. After that, mark these commits also as SEEN. | |
111 | * If some of the objects that are needed to complete this | |
112 | * commit are missing, mark this commit as INCOMPLETE. | |
113 | */ | |
114 | memset(&study, 0, sizeof(study)); | |
115 | memset(&found, 0, sizeof(found)); | |
116 | add_object_array(&commit->object, NULL, &study); | |
117 | add_object_array(&commit->object, NULL, &found); | |
118 | commit->object.flags |= STUDYING; | |
119 | while (study.nr) { | |
120 | struct commit *c; | |
121 | struct commit_list *parent; | |
122 | ||
71992039 | 123 | c = (struct commit *)object_array_pop(&study); |
109cd76d | 124 | if (!c->object.parsed && !parse_object(the_repository, &c->object.oid)) |
1389d9dd JH |
125 | c->object.flags |= INCOMPLETE; |
126 | ||
127 | if (c->object.flags & INCOMPLETE) { | |
128 | is_incomplete = 1; | |
129 | break; | |
130 | } | |
131 | else if (c->object.flags & SEEN) | |
132 | continue; | |
133 | for (parent = c->parents; parent; parent = parent->next) { | |
134 | struct commit *p = parent->item; | |
135 | if (p->object.flags & STUDYING) | |
136 | continue; | |
137 | p->object.flags |= STUDYING; | |
138 | add_object_array(&p->object, NULL, &study); | |
139 | add_object_array(&p->object, NULL, &found); | |
140 | } | |
141 | } | |
142 | if (!is_incomplete) { | |
cd1f9c36 JH |
143 | /* |
144 | * make sure all commits in "found" array have all the | |
1389d9dd JH |
145 | * necessary objects. |
146 | */ | |
cd1f9c36 | 147 | for (i = 0; i < found.nr; i++) { |
1389d9dd JH |
148 | struct commit *c = |
149 | (struct commit *)found.objects[i].item; | |
2e27bd77 | 150 | if (!tree_is_complete(get_commit_tree_oid(c))) { |
1389d9dd | 151 | is_incomplete = 1; |
cd1f9c36 JH |
152 | c->object.flags |= INCOMPLETE; |
153 | } | |
1389d9dd JH |
154 | } |
155 | if (!is_incomplete) { | |
156 | /* mark all found commits as complete, iow SEEN */ | |
157 | for (i = 0; i < found.nr; i++) | |
158 | found.objects[i].item->flags |= SEEN; | |
159 | } | |
160 | } | |
161 | /* clear flags from the objects we traversed */ | |
162 | for (i = 0; i < found.nr; i++) | |
163 | found.objects[i].item->flags &= ~STUDYING; | |
164 | if (is_incomplete) | |
165 | commit->object.flags |= INCOMPLETE; | |
cd1f9c36 JH |
166 | else { |
167 | /* | |
168 | * If we come here, we have (1) traversed the ancestry chain | |
169 | * from the "commit" until we reach SEEN commits (which are | |
170 | * known to be complete), and (2) made sure that the commits | |
171 | * encountered during the above traversal refer to trees that | |
172 | * are complete. Which means that we know *all* the commits | |
173 | * we have seen during this process are complete. | |
174 | */ | |
175 | for (i = 0; i < found.nr; i++) | |
176 | found.objects[i].item->flags |= SEEN; | |
177 | } | |
1389d9dd | 178 | /* free object arrays */ |
dcb572ab MÅ |
179 | object_array_clear(&study); |
180 | object_array_clear(&found); | |
1389d9dd JH |
181 | return !is_incomplete; |
182 | } | |
183 | ||
4322478a | 184 | static int keep_entry(struct commit **it, struct object_id *oid) |
4264dc15 | 185 | { |
8d8b9f62 JH |
186 | struct commit *commit; |
187 | ||
4322478a | 188 | if (is_null_oid(oid)) |
4264dc15 | 189 | return 1; |
21e1ee8f | 190 | commit = lookup_commit_reference_gently(the_repository, oid, 1); |
8d8b9f62 JH |
191 | if (!commit) |
192 | return 0; | |
193 | ||
1389d9dd JH |
194 | /* |
195 | * Make sure everything in this commit exists. | |
196 | * | |
197 | * We have walked all the objects reachable from the refs | |
198 | * and cache earlier. The commits reachable by this commit | |
199 | * must meet SEEN commits -- and then we should mark them as | |
200 | * SEEN as well. | |
201 | */ | |
202 | if (!commit_is_complete(commit)) | |
8d8b9f62 JH |
203 | return 0; |
204 | *it = commit; | |
205 | return 1; | |
4264dc15 JH |
206 | } |
207 | ||
b4ca1db9 JH |
208 | /* |
209 | * Starting from commits in the cb->mark_list, mark commits that are | |
210 | * reachable from them. Stop the traversal at commits older than | |
211 | * the expire_limit and queue them back, so that the caller can call | |
212 | * us again to restart the traversal with longer expire_limit. | |
213 | */ | |
ea7b4f6d | 214 | static void mark_reachable(struct expire_reflog_policy_cb *cb) |
666e07e6 | 215 | { |
b4ca1db9 | 216 | struct commit_list *pending; |
dddbad72 | 217 | timestamp_t expire_limit = cb->mark_limit; |
b4ca1db9 | 218 | struct commit_list *leftover = NULL; |
666e07e6 | 219 | |
b4ca1db9 JH |
220 | for (pending = cb->mark_list; pending; pending = pending->next) |
221 | pending->item->object.flags &= ~REACHABLE; | |
494fbfe8 | 222 | |
b4ca1db9 | 223 | pending = cb->mark_list; |
494fbfe8 | 224 | while (pending) { |
494fbfe8 | 225 | struct commit_list *parent; |
e510ab89 | 226 | struct commit *commit = pop_commit(&pending); |
494fbfe8 JH |
227 | if (commit->object.flags & REACHABLE) |
228 | continue; | |
229 | if (parse_commit(commit)) | |
230 | continue; | |
231 | commit->object.flags |= REACHABLE; | |
b4ca1db9 JH |
232 | if (commit->date < expire_limit) { |
233 | commit_list_insert(commit, &leftover); | |
494fbfe8 | 234 | continue; |
b4ca1db9 JH |
235 | } |
236 | commit->object.flags |= REACHABLE; | |
494fbfe8 JH |
237 | parent = commit->parents; |
238 | while (parent) { | |
239 | commit = parent->item; | |
240 | parent = parent->next; | |
241 | if (commit->object.flags & REACHABLE) | |
242 | continue; | |
243 | commit_list_insert(commit, &pending); | |
244 | } | |
245 | } | |
b4ca1db9 JH |
246 | cb->mark_list = leftover; |
247 | } | |
248 | ||
4322478a | 249 | static int unreachable(struct expire_reflog_policy_cb *cb, struct commit *commit, struct object_id *oid) |
b4ca1db9 JH |
250 | { |
251 | /* | |
252 | * We may or may not have the commit yet - if not, look it | |
253 | * up using the supplied sha1. | |
254 | */ | |
255 | if (!commit) { | |
4322478a | 256 | if (is_null_oid(oid)) |
b4ca1db9 JH |
257 | return 0; |
258 | ||
21e1ee8f SB |
259 | commit = lookup_commit_reference_gently(the_repository, oid, |
260 | 1); | |
b4ca1db9 JH |
261 | |
262 | /* Not a commit -- keep it */ | |
263 | if (!commit) | |
264 | return 0; | |
265 | } | |
266 | ||
267 | /* Reachable from the current ref? Don't prune. */ | |
268 | if (commit->object.flags & REACHABLE) | |
269 | return 0; | |
270 | ||
271 | if (cb->mark_list && cb->mark_limit) { | |
272 | cb->mark_limit = 0; /* dig down to the root */ | |
273 | mark_reachable(cb); | |
274 | } | |
275 | ||
276 | return !(commit->object.flags & REACHABLE); | |
494fbfe8 JH |
277 | } |
278 | ||
60cc3c40 MH |
279 | /* |
280 | * Return true iff the specified reflog entry should be expired. | |
281 | */ | |
4322478a | 282 | static int should_expire_reflog_ent(struct object_id *ooid, struct object_id *noid, |
dddbad72 | 283 | const char *email, timestamp_t timestamp, int tz, |
60cc3c40 | 284 | const char *message, void *cb_data) |
4264dc15 | 285 | { |
ea7b4f6d | 286 | struct expire_reflog_policy_cb *cb = cb_data; |
dfa5990d | 287 | struct commit *old_commit, *new_commit; |
4264dc15 | 288 | |
b729effb | 289 | if (timestamp < cb->cmd.expire_total) |
60cc3c40 | 290 | return 1; |
2b81fab2 | 291 | |
dfa5990d | 292 | old_commit = new_commit = NULL; |
b729effb | 293 | if (cb->cmd.stalefix && |
dfa5990d | 294 | (!keep_entry(&old_commit, ooid) || !keep_entry(&new_commit, noid))) |
60cc3c40 | 295 | return 1; |
4264dc15 | 296 | |
b729effb | 297 | if (timestamp < cb->cmd.expire_unreachable) { |
20d6b686 ÆAB |
298 | switch (cb->unreachable_expire_kind) { |
299 | case UE_ALWAYS: | |
60cc3c40 | 300 | return 1; |
20d6b686 ÆAB |
301 | case UE_NORMAL: |
302 | case UE_HEAD: | |
303 | if (unreachable(cb, old_commit, ooid) || unreachable(cb, new_commit, noid)) | |
304 | return 1; | |
305 | break; | |
306 | } | |
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 | ||
fcd2c3d9 ÆAB |
315 | static int should_expire_reflog_ent_verbose(struct object_id *ooid, |
316 | struct object_id *noid, | |
317 | const char *email, | |
318 | timestamp_t timestamp, int tz, | |
319 | const char *message, void *cb_data) | |
320 | { | |
321 | struct expire_reflog_policy_cb *cb = cb_data; | |
322 | int expire; | |
323 | ||
324 | expire = should_expire_reflog_ent(ooid, noid, email, timestamp, tz, | |
325 | message, cb); | |
326 | ||
327 | if (!expire) | |
328 | printf("keep %s", message); | |
329 | else if (cb->dry_run) | |
330 | printf("would prune %s", message); | |
331 | else | |
332 | printf("prune %s", message); | |
333 | ||
334 | return expire; | |
335 | } | |
336 | ||
5bcad1bc | 337 | static int push_tip_to_list(const char *refname, const struct object_id *oid, |
ea7b4f6d | 338 | int flags, void *cb_data) |
03cb91b1 JH |
339 | { |
340 | struct commit_list **list = cb_data; | |
341 | struct commit *tip_commit; | |
342 | if (flags & REF_ISSYMREF) | |
343 | return 0; | |
21e1ee8f | 344 | tip_commit = lookup_commit_reference_gently(the_repository, oid, 1); |
03cb91b1 JH |
345 | if (!tip_commit) |
346 | return 0; | |
347 | commit_list_insert(tip_commit, list); | |
348 | return 0; | |
349 | } | |
350 | ||
c9ef0d95 NTND |
351 | static int is_head(const char *refname) |
352 | { | |
353 | switch (ref_type(refname)) { | |
354 | case REF_TYPE_OTHER_PSEUDOREF: | |
355 | case REF_TYPE_MAIN_PSEUDOREF: | |
356 | if (parse_worktree_ref(refname, NULL, NULL, &refname)) | |
357 | BUG("not a worktree ref: %s", refname); | |
358 | break; | |
359 | default: | |
360 | break; | |
361 | } | |
362 | return !strcmp(refname, "HEAD"); | |
363 | } | |
364 | ||
c48a1635 | 365 | static void reflog_expiry_prepare(const char *refname, |
4322478a | 366 | const struct object_id *oid, |
b729effb | 367 | void *cb_data) |
c48a1635 | 368 | { |
b729effb | 369 | struct expire_reflog_policy_cb *cb = cb_data; |
20d6b686 | 370 | struct commit_list *elem; |
07815e2d | 371 | struct commit *commit = NULL; |
b729effb | 372 | |
c9ef0d95 | 373 | if (!cb->cmd.expire_unreachable || is_head(refname)) { |
c48a1635 MH |
374 | cb->unreachable_expire_kind = UE_HEAD; |
375 | } else { | |
daf1d828 | 376 | commit = lookup_commit(the_repository, oid); |
07815e2d | 377 | cb->unreachable_expire_kind = commit ? UE_NORMAL : UE_ALWAYS; |
c48a1635 MH |
378 | } |
379 | ||
b729effb | 380 | if (cb->cmd.expire_unreachable <= cb->cmd.expire_total) |
c48a1635 MH |
381 | cb->unreachable_expire_kind = UE_ALWAYS; |
382 | ||
20d6b686 ÆAB |
383 | switch (cb->unreachable_expire_kind) { |
384 | case UE_ALWAYS: | |
385 | return; | |
386 | case UE_HEAD: | |
387 | for_each_ref(push_tip_to_list, &cb->tips); | |
388 | for (elem = cb->tips; elem; elem = elem->next) | |
389 | commit_list_insert(elem->item, &cb->mark_list); | |
390 | break; | |
391 | case UE_NORMAL: | |
07815e2d ÆAB |
392 | commit_list_insert(commit, &cb->mark_list); |
393 | /* For reflog_expiry_cleanup() below */ | |
394 | cb->tip_commit = commit; | |
c48a1635 | 395 | } |
20d6b686 ÆAB |
396 | cb->mark_limit = cb->cmd.expire_total; |
397 | mark_reachable(cb); | |
c48a1635 MH |
398 | } |
399 | ||
b729effb | 400 | static void reflog_expiry_cleanup(void *cb_data) |
c48a1635 | 401 | { |
b729effb | 402 | struct expire_reflog_policy_cb *cb = cb_data; |
20d6b686 ÆAB |
403 | struct commit_list *elem; |
404 | ||
405 | switch (cb->unreachable_expire_kind) { | |
406 | case UE_ALWAYS: | |
407 | return; | |
408 | case UE_HEAD: | |
409 | for (elem = cb->tips; elem; elem = elem->next) | |
410 | clear_commit_marks(elem->item, REACHABLE); | |
411 | free_commit_list(cb->tips); | |
412 | break; | |
413 | case UE_NORMAL: | |
414 | clear_commit_marks(cb->tip_commit, REACHABLE); | |
415 | break; | |
c48a1635 MH |
416 | } |
417 | } | |
418 | ||
5bcad1bc | 419 | static int collect_reflog(const char *ref, const struct object_id *oid, int unused, void *cb_data) |
bda3a31c | 420 | { |
f2919bae ÆAB |
421 | struct worktree_reflogs *cb = cb_data; |
422 | struct worktree *worktree = cb->worktree; | |
c9ef0d95 NTND |
423 | struct strbuf newref = STRBUF_INIT; |
424 | ||
425 | /* | |
426 | * Avoid collecting the same shared ref multiple times because | |
427 | * they are available via all worktrees. | |
428 | */ | |
f2919bae | 429 | if (!worktree->is_current && ref_type(ref) == REF_TYPE_NORMAL) |
c9ef0d95 NTND |
430 | return 0; |
431 | ||
f2919bae ÆAB |
432 | strbuf_worktree_ref(worktree, &newref, ref); |
433 | string_list_append_nodup(&cb->reflogs, strbuf_detach(&newref, NULL)); | |
bda3a31c | 434 | |
bda3a31c JH |
435 | return 0; |
436 | } | |
437 | ||
3cb22b8e JH |
438 | static struct reflog_expire_cfg { |
439 | struct reflog_expire_cfg *next; | |
dddbad72 JS |
440 | timestamp_t expire_total; |
441 | timestamp_t expire_unreachable; | |
3cb22b8e JH |
442 | char pattern[FLEX_ARRAY]; |
443 | } *reflog_expire_cfg, **reflog_expire_cfg_tail; | |
444 | ||
445 | static struct reflog_expire_cfg *find_cfg_ent(const char *pattern, size_t len) | |
4aec56d1 | 446 | { |
3cb22b8e JH |
447 | struct reflog_expire_cfg *ent; |
448 | ||
449 | if (!reflog_expire_cfg_tail) | |
450 | reflog_expire_cfg_tail = &reflog_expire_cfg; | |
451 | ||
452 | for (ent = reflog_expire_cfg; ent; ent = ent->next) | |
c3a700fb JK |
453 | if (!strncmp(ent->pattern, pattern, len) && |
454 | ent->pattern[len] == '\0') | |
3cb22b8e JH |
455 | return ent; |
456 | ||
96ffc06f | 457 | FLEX_ALLOC_MEM(ent, pattern, pattern, len); |
3cb22b8e JH |
458 | *reflog_expire_cfg_tail = ent; |
459 | reflog_expire_cfg_tail = &(ent->next); | |
460 | return ent; | |
461 | } | |
462 | ||
3cb22b8e JH |
463 | /* expiry timer slot */ |
464 | #define EXPIRE_TOTAL 01 | |
465 | #define EXPIRE_UNREACH 02 | |
466 | ||
467 | static int reflog_expire_config(const char *var, const char *value, void *cb) | |
468 | { | |
b3873c33 | 469 | const char *pattern, *key; |
f5914f4b | 470 | size_t pattern_len; |
dddbad72 | 471 | timestamp_t expire; |
3cb22b8e JH |
472 | int slot; |
473 | struct reflog_expire_cfg *ent; | |
474 | ||
b3873c33 | 475 | if (parse_config_key(var, "gc", &pattern, &pattern_len, &key) < 0) |
3cb22b8e JH |
476 | return git_default_config(var, value, cb); |
477 | ||
b3873c33 | 478 | if (!strcmp(key, "reflogexpire")) { |
3cb22b8e | 479 | slot = EXPIRE_TOTAL; |
5f967424 | 480 | if (git_config_expiry_date(&expire, var, value)) |
3cb22b8e | 481 | return -1; |
b3873c33 | 482 | } else if (!strcmp(key, "reflogexpireunreachable")) { |
3cb22b8e | 483 | slot = EXPIRE_UNREACH; |
5f967424 | 484 | if (git_config_expiry_date(&expire, var, value)) |
3cb22b8e JH |
485 | return -1; |
486 | } else | |
487 | return git_default_config(var, value, cb); | |
488 | ||
b3873c33 | 489 | if (!pattern) { |
3cb22b8e JH |
490 | switch (slot) { |
491 | case EXPIRE_TOTAL: | |
492 | default_reflog_expire = expire; | |
493 | break; | |
494 | case EXPIRE_UNREACH: | |
495 | default_reflog_expire_unreachable = expire; | |
496 | break; | |
497 | } | |
4f342b96 JH |
498 | return 0; |
499 | } | |
3cb22b8e | 500 | |
b3873c33 | 501 | ent = find_cfg_ent(pattern, pattern_len); |
3cb22b8e JH |
502 | if (!ent) |
503 | return -1; | |
504 | switch (slot) { | |
505 | case EXPIRE_TOTAL: | |
506 | ent->expire_total = expire; | |
507 | break; | |
508 | case EXPIRE_UNREACH: | |
509 | ent->expire_unreachable = expire; | |
510 | break; | |
511 | } | |
512 | return 0; | |
513 | } | |
514 | ||
33d7bdd6 | 515 | static void set_reflog_expiry_param(struct cmd_reflog_expire_cb *cb, const char *ref) |
3cb22b8e JH |
516 | { |
517 | struct reflog_expire_cfg *ent; | |
518 | ||
33d7bdd6 | 519 | if (cb->explicit_expiry == (EXPIRE_TOTAL|EXPIRE_UNREACH)) |
3cb22b8e JH |
520 | return; /* both given explicitly -- nothing to tweak */ |
521 | ||
522 | for (ent = reflog_expire_cfg; ent; ent = ent->next) { | |
55d34269 | 523 | if (!wildmatch(ent->pattern, ref, 0)) { |
33d7bdd6 | 524 | if (!(cb->explicit_expiry & EXPIRE_TOTAL)) |
3cb22b8e | 525 | cb->expire_total = ent->expire_total; |
33d7bdd6 | 526 | if (!(cb->explicit_expiry & EXPIRE_UNREACH)) |
3cb22b8e JH |
527 | cb->expire_unreachable = ent->expire_unreachable; |
528 | return; | |
529 | } | |
530 | } | |
531 | ||
60bce2bb JH |
532 | /* |
533 | * If unconfigured, make stash never expire | |
534 | */ | |
535 | if (!strcmp(ref, "refs/stash")) { | |
33d7bdd6 | 536 | if (!(cb->explicit_expiry & EXPIRE_TOTAL)) |
60bce2bb | 537 | cb->expire_total = 0; |
33d7bdd6 | 538 | if (!(cb->explicit_expiry & EXPIRE_UNREACH)) |
60bce2bb JH |
539 | cb->expire_unreachable = 0; |
540 | return; | |
541 | } | |
542 | ||
3cb22b8e | 543 | /* Nothing matched -- use the default value */ |
33d7bdd6 | 544 | if (!(cb->explicit_expiry & EXPIRE_TOTAL)) |
3cb22b8e | 545 | cb->expire_total = default_reflog_expire; |
33d7bdd6 | 546 | if (!(cb->explicit_expiry & EXPIRE_UNREACH)) |
3cb22b8e | 547 | cb->expire_unreachable = default_reflog_expire_unreachable; |
4aec56d1 JH |
548 | } |
549 | ||
33d7bdd6 JC |
550 | static const char * reflog_expire_usage[] = { |
551 | N_("git reflog expire [--expire=<time>] " | |
552 | "[--expire-unreachable=<time>] " | |
553 | "[--rewrite] [--updateref] [--stale-fix] [--dry-run | -n] " | |
554 | "[--verbose] [--all] <refs>..."), | |
555 | NULL | |
556 | }; | |
557 | ||
558 | static int expire_unreachable_callback(const struct option *opt, | |
559 | const char *arg, | |
560 | int unset) | |
561 | { | |
562 | struct cmd_reflog_expire_cb *cmd = opt->value; | |
563 | ||
564 | if (parse_expiry_date(arg, &cmd->expire_unreachable)) | |
565 | die(_("invalid timestamp '%s' given to '--%s'"), | |
566 | arg, opt->long_name); | |
567 | ||
568 | cmd->explicit_expiry |= EXPIRE_UNREACH; | |
569 | return 0; | |
570 | } | |
571 | ||
572 | static int expire_total_callback(const struct option *opt, | |
573 | const char *arg, | |
574 | int unset) | |
575 | { | |
576 | struct cmd_reflog_expire_cb *cmd = opt->value; | |
577 | ||
578 | if (parse_expiry_date(arg, &cmd->expire_total)) | |
579 | die(_("invalid timestamp '%s' given to '--%s'"), | |
580 | arg, opt->long_name); | |
581 | ||
582 | cmd->explicit_expiry |= EXPIRE_TOTAL; | |
583 | return 0; | |
584 | } | |
585 | ||
4264dc15 JH |
586 | static int cmd_reflog_expire(int argc, const char **argv, const char *prefix) |
587 | { | |
46fbe418 | 588 | struct cmd_reflog_expire_cb cmd = { 0 }; |
dddbad72 | 589 | timestamp_t now = time(NULL); |
c9ef0d95 | 590 | int i, status, do_all, all_worktrees = 1; |
aba56c89 | 591 | unsigned int flags = 0; |
fcd2c3d9 ÆAB |
592 | int verbose = 0; |
593 | reflog_expiry_should_prune_fn *should_prune_fn = should_expire_reflog_ent; | |
33d7bdd6 JC |
594 | const struct option options[] = { |
595 | OPT_BIT(0, "dry-run", &flags, N_("do not actually prune any entries"), | |
596 | EXPIRE_REFLOGS_DRY_RUN), | |
597 | OPT_BIT(0, "rewrite", &flags, | |
598 | N_("rewrite the old SHA1 with the new SHA1 of the entry that now precedes it"), | |
599 | EXPIRE_REFLOGS_REWRITE), | |
600 | OPT_BIT(0, "updateref", &flags, | |
601 | N_("update the reference to the value of the top reflog entry"), | |
602 | EXPIRE_REFLOGS_UPDATE_REF), | |
603 | OPT_BOOL(0, "verbose", &verbose, N_("print extra information on screen.")), | |
604 | OPT_CALLBACK_F(0, "expire", &cmd, N_("timestamp"), | |
605 | N_("prune entries older than the specified time"), | |
606 | PARSE_OPT_NONEG, | |
607 | expire_total_callback), | |
608 | OPT_CALLBACK_F(0, "expire-unreachable", &cmd, N_("timestamp"), | |
609 | N_("prune entries older than <time> that are not reachable from the current tip of the branch"), | |
610 | PARSE_OPT_NONEG, | |
611 | expire_unreachable_callback), | |
612 | OPT_BOOL(0, "stale-fix", &cmd.stalefix, | |
613 | N_("prune any reflog entries that point to broken commits")), | |
614 | OPT_BOOL(0, "all", &do_all, N_("process the reflogs of all references")), | |
615 | OPT_BOOL(1, "single-worktree", &all_worktrees, | |
616 | N_("limits processing to reflogs from the current worktree only.")), | |
617 | OPT_END() | |
618 | }; | |
4264dc15 | 619 | |
4a9f4394 AS |
620 | default_reflog_expire_unreachable = now - 30 * 24 * 3600; |
621 | default_reflog_expire = now - 90 * 24 * 3600; | |
ef90d6d4 | 622 | git_config(reflog_expire_config, NULL); |
4aec56d1 | 623 | |
4264dc15 JH |
624 | save_commit_buffer = 0; |
625 | do_all = status = 0; | |
4aec56d1 | 626 | |
33d7bdd6 | 627 | cmd.explicit_expiry = 0; |
46fbe418 ÆAB |
628 | cmd.expire_total = default_reflog_expire; |
629 | cmd.expire_unreachable = default_reflog_expire_unreachable; | |
4264dc15 | 630 | |
33d7bdd6 | 631 | argc = parse_options(argc, argv, prefix, options, reflog_expire_usage, 0); |
3cb22b8e | 632 | |
fcd2c3d9 ÆAB |
633 | if (verbose) |
634 | should_prune_fn = should_expire_reflog_ent_verbose; | |
635 | ||
3cb22b8e JH |
636 | /* |
637 | * We can trust the commits and objects reachable from refs | |
638 | * even in older repository. We cannot trust what's reachable | |
639 | * from reflog if the repository was pruned with older git. | |
640 | */ | |
46fbe418 | 641 | if (cmd.stalefix) { |
994b328f ÆAB |
642 | struct rev_info revs; |
643 | ||
644 | repo_init_revisions(the_repository, &revs, prefix); | |
645 | revs.do_not_die_on_missing_tree = 1; | |
646 | revs.ignore_missing = 1; | |
647 | revs.ignore_missing_links = 1; | |
fcd2c3d9 | 648 | if (verbose) |
dd509db3 | 649 | printf(_("Marking reachable objects...")); |
994b328f | 650 | mark_reachable_objects(&revs, 0, 0, NULL); |
fcd2c3d9 | 651 | if (verbose) |
1389d9dd JH |
652 | putchar('\n'); |
653 | } | |
654 | ||
bda3a31c | 655 | if (do_all) { |
f2919bae ÆAB |
656 | struct worktree_reflogs collected = { |
657 | .reflogs = STRING_LIST_INIT_DUP, | |
658 | }; | |
659 | struct string_list_item *item; | |
c9ef0d95 | 660 | struct worktree **worktrees, **p; |
bda3a31c | 661 | |
03f2465b | 662 | worktrees = get_worktrees(); |
c9ef0d95 NTND |
663 | for (p = worktrees; *p; p++) { |
664 | if (!all_worktrees && !(*p)->is_current) | |
665 | continue; | |
f2919bae | 666 | collected.worktree = *p; |
c9ef0d95 NTND |
667 | refs_for_each_reflog(get_worktree_ref_store(*p), |
668 | collect_reflog, &collected); | |
669 | } | |
670 | free_worktrees(worktrees); | |
f2919bae ÆAB |
671 | |
672 | for_each_string_list_item(item, &collected.reflogs) { | |
fcd2c3d9 ÆAB |
673 | struct expire_reflog_policy_cb cb = { |
674 | .cmd = cmd, | |
675 | .dry_run = !!(flags & EXPIRE_REFLOGS_DRY_RUN), | |
676 | }; | |
ae35e16c | 677 | |
33d7bdd6 | 678 | set_reflog_expiry_param(&cb.cmd, item->string); |
f2919bae | 679 | status |= reflog_expire(item->string, flags, |
fa5b1830 | 680 | reflog_expiry_prepare, |
fcd2c3d9 | 681 | should_prune_fn, |
fa5b1830 MH |
682 | reflog_expiry_cleanup, |
683 | &cb); | |
bda3a31c | 684 | } |
f2919bae | 685 | string_list_clear(&collected.reflogs, 0); |
bda3a31c JH |
686 | } |
687 | ||
33d7bdd6 | 688 | for (i = 0; i < argc; i++) { |
90fb46ec | 689 | char *ref; |
46fbe418 ÆAB |
690 | struct expire_reflog_policy_cb cb = { .cmd = cmd }; |
691 | ||
ae35e16c | 692 | if (!dwim_log(argv[i], strlen(argv[i]), NULL, &ref)) { |
dd509db3 | 693 | status |= error(_("%s points nowhere!"), argv[i]); |
4264dc15 JH |
694 | continue; |
695 | } | |
33d7bdd6 | 696 | set_reflog_expiry_param(&cb.cmd, ref); |
cc40b5ce | 697 | status |= reflog_expire(ref, flags, |
fa5b1830 | 698 | reflog_expiry_prepare, |
fcd2c3d9 | 699 | should_prune_fn, |
fa5b1830 MH |
700 | reflog_expiry_cleanup, |
701 | &cb); | |
3c815049 | 702 | free(ref); |
4264dc15 JH |
703 | } |
704 | return status; | |
705 | } | |
706 | ||
9461d272 | 707 | static int count_reflog_ent(struct object_id *ooid, struct object_id *noid, |
dddbad72 | 708 | const char *email, timestamp_t timestamp, int tz, |
552cecc2 JS |
709 | const char *message, void *cb_data) |
710 | { | |
4a0339b3 ÆAB |
711 | struct cmd_reflog_expire_cb *cb = cb_data; |
712 | if (!cb->expire_total || timestamp < cb->expire_total) | |
713 | cb->recno++; | |
552cecc2 JS |
714 | return 0; |
715 | } | |
716 | ||
33d7bdd6 JC |
717 | static const char * reflog_delete_usage[] = { |
718 | N_("git reflog delete [--rewrite] [--updateref] " | |
719 | "[--dry-run | -n] [--verbose] <refs>..."), | |
720 | NULL | |
721 | }; | |
722 | ||
552cecc2 JS |
723 | static int cmd_reflog_delete(int argc, const char **argv, const char *prefix) |
724 | { | |
4a0339b3 | 725 | struct cmd_reflog_expire_cb cmd = { 0 }; |
552cecc2 | 726 | int i, status = 0; |
aba56c89 | 727 | unsigned int flags = 0; |
fcd2c3d9 ÆAB |
728 | int verbose = 0; |
729 | reflog_expiry_should_prune_fn *should_prune_fn = should_expire_reflog_ent; | |
33d7bdd6 JC |
730 | const struct option options[] = { |
731 | OPT_BIT(0, "dry-run", &flags, N_("do not actually prune any entries"), | |
732 | EXPIRE_REFLOGS_DRY_RUN), | |
733 | OPT_BIT(0, "rewrite", &flags, | |
734 | N_("rewrite the old SHA1 with the new SHA1 of the entry that now precedes it"), | |
735 | EXPIRE_REFLOGS_REWRITE), | |
736 | OPT_BIT(0, "updateref", &flags, | |
737 | N_("update the reference to the value of the top reflog entry"), | |
738 | EXPIRE_REFLOGS_UPDATE_REF), | |
739 | OPT_BOOL(0, "verbose", &verbose, N_("print extra information on screen.")), | |
740 | OPT_END() | |
741 | }; | |
742 | ||
743 | argc = parse_options(argc, argv, prefix, options, reflog_delete_usage, 0); | |
3c386aa3 | 744 | |
fcd2c3d9 ÆAB |
745 | if (verbose) |
746 | should_prune_fn = should_expire_reflog_ent_verbose; | |
747 | ||
33d7bdd6 | 748 | if (argc < 1) |
dd509db3 | 749 | return error(_("no reflog specified to delete")); |
3c386aa3 | 750 | |
33d7bdd6 | 751 | for (i = 0; i < argc; i++) { |
552cecc2 | 752 | const char *spec = strstr(argv[i], "@{"); |
552cecc2 JS |
753 | char *ep, *ref; |
754 | int recno; | |
fcd2c3d9 ÆAB |
755 | struct expire_reflog_policy_cb cb = { |
756 | .dry_run = !!(flags & EXPIRE_REFLOGS_DRY_RUN), | |
757 | }; | |
552cecc2 JS |
758 | |
759 | if (!spec) { | |
dd509db3 | 760 | status |= error(_("not a reflog: %s"), argv[i]); |
552cecc2 JS |
761 | continue; |
762 | } | |
763 | ||
ae35e16c | 764 | if (!dwim_log(argv[i], spec - argv[i], NULL, &ref)) { |
dd509db3 | 765 | status |= error(_("no reflog for '%s'"), argv[i]); |
552cecc2 JS |
766 | continue; |
767 | } | |
768 | ||
769 | recno = strtoul(spec + 2, &ep, 10); | |
770 | if (*ep == '}') { | |
4a0339b3 ÆAB |
771 | cmd.recno = -recno; |
772 | for_each_reflog_ent(ref, count_reflog_ent, &cmd); | |
552cecc2 | 773 | } else { |
4a0339b3 ÆAB |
774 | cmd.expire_total = approxidate(spec + 2); |
775 | for_each_reflog_ent(ref, count_reflog_ent, &cmd); | |
776 | cmd.expire_total = 0; | |
552cecc2 JS |
777 | } |
778 | ||
4a0339b3 | 779 | cb.cmd = cmd; |
cc40b5ce | 780 | status |= reflog_expire(ref, flags, |
fa5b1830 | 781 | reflog_expiry_prepare, |
fcd2c3d9 | 782 | should_prune_fn, |
fa5b1830 MH |
783 | reflog_expiry_cleanup, |
784 | &cb); | |
552cecc2 JS |
785 | free(ref); |
786 | } | |
787 | return status; | |
788 | } | |
789 | ||
afcb2e7a DT |
790 | static int cmd_reflog_exists(int argc, const char **argv, const char *prefix) |
791 | { | |
792 | int i, start = 0; | |
793 | ||
794 | for (i = 1; i < argc; i++) { | |
795 | const char *arg = argv[i]; | |
796 | if (!strcmp(arg, "--")) { | |
797 | i++; | |
798 | break; | |
799 | } | |
800 | else if (arg[0] == '-') | |
dd509db3 | 801 | usage(_(reflog_exists_usage)); |
afcb2e7a DT |
802 | else |
803 | break; | |
804 | } | |
805 | ||
806 | start = i; | |
807 | ||
808 | if (argc - start != 1) | |
dd509db3 | 809 | usage(_(reflog_exists_usage)); |
afcb2e7a DT |
810 | |
811 | if (check_refname_format(argv[start], REFNAME_ALLOW_ONELEVEL)) | |
dd509db3 | 812 | die(_("invalid ref format: %s"), argv[start]); |
afcb2e7a DT |
813 | return !reflog_exists(argv[start]); |
814 | } | |
815 | ||
1389d9dd JH |
816 | /* |
817 | * main "reflog" | |
818 | */ | |
819 | ||
4264dc15 | 820 | static const char reflog_usage[] = |
dd509db3 | 821 | N_("git reflog [ show | expire | delete | exists ]"); |
4264dc15 JH |
822 | |
823 | int cmd_reflog(int argc, const char **argv, const char *prefix) | |
824 | { | |
99caeed0 | 825 | if (argc > 1 && !strcmp(argv[1], "-h")) |
dd509db3 | 826 | usage(_(reflog_usage)); |
99caeed0 | 827 | |
cf39f54e LT |
828 | /* With no command, we default to showing it. */ |
829 | if (argc < 2 || *argv[1] == '-') | |
830 | return cmd_log_reflog(argc, argv, prefix); | |
831 | ||
832 | if (!strcmp(argv[1], "show")) | |
833 | return cmd_log_reflog(argc - 1, argv + 1, prefix); | |
834 | ||
835 | if (!strcmp(argv[1], "expire")) | |
4264dc15 | 836 | return cmd_reflog_expire(argc - 1, argv + 1, prefix); |
cf39f54e | 837 | |
552cecc2 JS |
838 | if (!strcmp(argv[1], "delete")) |
839 | return cmd_reflog_delete(argc - 1, argv + 1, prefix); | |
840 | ||
afcb2e7a DT |
841 | if (!strcmp(argv[1], "exists")) |
842 | return cmd_reflog_exists(argc - 1, argv + 1, prefix); | |
843 | ||
bf01d4a3 | 844 | return cmd_log_reflog(argc, argv, prefix); |
4264dc15 | 845 | } |