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Commit | Line | Data |
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f8adbec9 | 1 | #define USE_THE_INDEX_COMPATIBILITY_MACROS |
baffc0e7 | 2 | #include "builtin.h" |
4b182421 | 3 | #include "cache.h" |
031dc927 | 4 | #include "repository.h" |
b2141fc1 | 5 | #include "config.h" |
ff5ebe39 DB |
6 | #include "commit.h" |
7 | #include "tree.h" | |
8 | #include "blob.h" | |
c418eda4 | 9 | #include "tag.h" |
944d8589 | 10 | #include "refs.h" |
f9253394 | 11 | #include "pack.h" |
53dc3f3e | 12 | #include "cache-tree.h" |
e9a95bef | 13 | #include "tree-walk.h" |
271b8d25 | 14 | #include "fsck.h" |
5ac0a206 | 15 | #include "parse-options.h" |
8ca12c0d | 16 | #include "dir.h" |
1e49f22f | 17 | #include "progress.h" |
6f7f3beb | 18 | #include "streaming.h" |
90cf590f | 19 | #include "decorate.h" |
0317f455 | 20 | #include "packfile.h" |
0d4a1321 | 21 | #include "object-store.h" |
e0fd51e1 | 22 | #include "run-command.h" |
b29759d8 | 23 | #include "worktree.h" |
ff5ebe39 DB |
24 | |
25 | #define REACHABLE 0x0001 | |
2d9c58c6 | 26 | #define SEEN 0x0002 |
6e454b9a | 27 | #define HAS_OBJ 0x0004 |
092c55d0 JT |
28 | /* This flag is set if something points to this object. */ |
29 | #define USED 0x0008 | |
d9839e03 | 30 | |
96f1e58f DR |
31 | static int show_root; |
32 | static int show_tags; | |
33 | static int show_unreachable; | |
566842f6 | 34 | static int include_reflogs = 1; |
f29cd393 | 35 | static int check_full = 1; |
02976bf8 | 36 | static int connectivity_only; |
96f1e58f DR |
37 | static int check_strict; |
38 | static int keep_cache_objects; | |
22410549 JS |
39 | static struct fsck_options fsck_walk_options = FSCK_OPTIONS_DEFAULT; |
40 | static struct fsck_options fsck_obj_options = FSCK_OPTIONS_DEFAULT; | |
e2b4f635 | 41 | static int errors_found; |
68f6c019 | 42 | static int write_lost_and_found; |
20f1eb6b | 43 | static int verbose; |
1e49f22f | 44 | static int show_progress = -1; |
c6a13b2c | 45 | static int show_dangling = 1; |
90cf590f | 46 | static int name_objects; |
e2b4f635 JH |
47 | #define ERROR_OBJECT 01 |
48 | #define ERROR_REACHABLE 02 | |
a3ed7552 | 49 | #define ERROR_PACK 04 |
122f76f5 | 50 | #define ERROR_REFS 010 |
e0fd51e1 | 51 | #define ERROR_COMMIT_GRAPH 020 |
d9839e03 | 52 | |
82ef89b3 | 53 | static const char *describe_object(const struct object_id *oid) |
993a21b0 | 54 | { |
82ef89b3 | 55 | return fsck_describe_object(&fsck_walk_options, oid); |
993a21b0 JS |
56 | } |
57 | ||
82ef89b3 JK |
58 | static const char *printable_type(const struct object_id *oid, |
59 | enum object_type type) | |
97ca7ca8 JK |
60 | { |
61 | const char *ret; | |
62 | ||
82ef89b3 JK |
63 | if (type == OBJ_NONE) |
64 | type = oid_object_info(the_repository, oid, NULL); | |
a2b22854 | 65 | |
82ef89b3 | 66 | ret = type_name(type); |
97ca7ca8 | 67 | if (!ret) |
674ba340 | 68 | ret = _("unknown"); |
97ca7ca8 JK |
69 | |
70 | return ret; | |
71 | } | |
72 | ||
2becf00f | 73 | static int fsck_config(const char *var, const char *value, void *cb) |
f1f0d088 | 74 | { |
1335f732 JS |
75 | if (strcmp(var, "fsck.skiplist") == 0) { |
76 | const char *path; | |
77 | struct strbuf sb = STRBUF_INIT; | |
78 | ||
79 | if (git_config_pathname(&path, var, value)) | |
80 | return 1; | |
81 | strbuf_addf(&sb, "skiplist=%s", path); | |
82 | free((char *)path); | |
83 | fsck_set_msg_types(&fsck_obj_options, sb.buf); | |
84 | strbuf_release(&sb); | |
85 | return 0; | |
86 | } | |
87 | ||
2becf00f JS |
88 | if (skip_prefix(var, "fsck.", &var)) { |
89 | fsck_set_msg_type(&fsck_obj_options, var, value); | |
90 | return 0; | |
91 | } | |
92 | ||
93 | return git_default_config(var, value, cb); | |
94 | } | |
95 | ||
c99ba492 | 96 | static int objerror(struct object *obj, const char *err) |
f1f0d088 | 97 | { |
e2b4f635 | 98 | errors_found |= ERROR_OBJECT; |
674ba340 NTND |
99 | /* TRANSLATORS: e.g. error in tree 01bfda: <more explanation> */ |
100 | fprintf_ln(stderr, _("error in %s %s: %s"), | |
82ef89b3 JK |
101 | printable_type(&obj->oid, obj->type), |
102 | describe_object(&obj->oid), err); | |
f1f0d088 PB |
103 | return -1; |
104 | } | |
105 | ||
1cd772cc | 106 | static int fsck_error_func(struct fsck_options *o, |
5afc4b1d JK |
107 | const struct object_id *oid, |
108 | enum object_type object_type, | |
109 | int msg_type, const char *message) | |
f1f0d088 | 110 | { |
5afc4b1d | 111 | switch (msg_type) { |
bbb15c51 | 112 | case FSCK_WARN: |
674ba340 NTND |
113 | /* TRANSLATORS: e.g. warning in tree 01bfda: <more explanation> */ |
114 | fprintf_ln(stderr, _("warning in %s %s: %s"), | |
5afc4b1d JK |
115 | printable_type(oid, object_type), |
116 | describe_object(oid), message); | |
bbb15c51 NTND |
117 | return 0; |
118 | case FSCK_ERROR: | |
674ba340 NTND |
119 | /* TRANSLATORS: e.g. error in tree 01bfda: <more explanation> */ |
120 | fprintf_ln(stderr, _("error in %s %s: %s"), | |
5afc4b1d JK |
121 | printable_type(oid, object_type), |
122 | describe_object(oid), message); | |
bbb15c51 NTND |
123 | return 1; |
124 | default: | |
5afc4b1d JK |
125 | BUG("%d (FSCK_IGNORE?) should never trigger this callback", |
126 | msg_type); | |
bbb15c51 | 127 | } |
f1f0d088 PB |
128 | } |
129 | ||
04d39759 LT |
130 | static struct object_array pending; |
131 | ||
22410549 | 132 | static int mark_object(struct object *obj, int type, void *data, struct fsck_options *options) |
271b8d25 | 133 | { |
271b8d25 | 134 | struct object *parent = data; |
271b8d25 | 135 | |
a1cdc251 JH |
136 | /* |
137 | * The only case data is NULL or type is OBJ_ANY is when | |
138 | * mark_object_reachable() calls us. All the callers of | |
139 | * that function has non-NULL obj hence ... | |
140 | */ | |
271b8d25 | 141 | if (!obj) { |
a1cdc251 | 142 | /* ... these references to parent->fld are safe here */ |
674ba340 | 143 | printf_ln(_("broken link from %7s %s"), |
82ef89b3 JK |
144 | printable_type(&parent->oid, parent->type), |
145 | describe_object(&parent->oid)); | |
674ba340 NTND |
146 | printf_ln(_("broken link from %7s %s"), |
147 | (type == OBJ_ANY ? _("unknown") : type_name(type)), | |
148 | _("unknown")); | |
271b8d25 MK |
149 | errors_found |= ERROR_REACHABLE; |
150 | return 1; | |
151 | } | |
152 | ||
153 | if (type != OBJ_ANY && obj->type != type) | |
a1cdc251 | 154 | /* ... and the reference to parent is safe here */ |
674ba340 | 155 | objerror(parent, _("wrong object type in link")); |
271b8d25 MK |
156 | |
157 | if (obj->flags & REACHABLE) | |
158 | return 0; | |
159 | obj->flags |= REACHABLE; | |
caba7fc3 JT |
160 | |
161 | if (is_promisor_object(&obj->oid)) | |
162 | /* | |
163 | * Further recursion does not need to be performed on this | |
164 | * object since it is a promisor object (so it does not need to | |
165 | * be added to "pending"). | |
166 | */ | |
167 | return 0; | |
168 | ||
6e454b9a | 169 | if (!(obj->flags & HAS_OBJ)) { |
f2fd0760 | 170 | if (parent && !has_object_file(&obj->oid)) { |
674ba340 NTND |
171 | printf_ln(_("broken link from %7s %s\n" |
172 | " to %7s %s"), | |
82ef89b3 JK |
173 | printable_type(&parent->oid, parent->type), |
174 | describe_object(&parent->oid), | |
175 | printable_type(&obj->oid, obj->type), | |
176 | describe_object(&obj->oid)); | |
271b8d25 MK |
177 | errors_found |= ERROR_REACHABLE; |
178 | } | |
179 | return 1; | |
180 | } | |
181 | ||
16aa3bfc | 182 | add_object_array(obj, NULL, &pending); |
04d39759 LT |
183 | return 0; |
184 | } | |
185 | ||
186 | static void mark_object_reachable(struct object *obj) | |
187 | { | |
22410549 | 188 | mark_object(obj, OBJ_ANY, NULL, NULL); |
04d39759 LT |
189 | } |
190 | ||
a1cdc251 | 191 | static int traverse_one_object(struct object *obj) |
04d39759 | 192 | { |
ba3a08ca EW |
193 | int result = fsck_walk(obj, obj, &fsck_walk_options); |
194 | ||
195 | if (obj->type == OBJ_TREE) { | |
196 | struct tree *tree = (struct tree *)obj; | |
197 | free_tree_buffer(tree); | |
198 | } | |
199 | return result; | |
271b8d25 MK |
200 | } |
201 | ||
04d39759 | 202 | static int traverse_reachable(void) |
271b8d25 | 203 | { |
1e49f22f NTND |
204 | struct progress *progress = NULL; |
205 | unsigned int nr = 0; | |
04d39759 | 206 | int result = 0; |
1e49f22f | 207 | if (show_progress) |
8aade107 | 208 | progress = start_delayed_progress(_("Checking connectivity"), 0); |
04d39759 | 209 | while (pending.nr) { |
71992039 | 210 | result |= traverse_one_object(object_array_pop(&pending)); |
1e49f22f | 211 | display_progress(progress, ++nr); |
04d39759 | 212 | } |
1e49f22f | 213 | stop_progress(&progress); |
04d39759 | 214 | return !!result; |
271b8d25 MK |
215 | } |
216 | ||
22410549 | 217 | static int mark_used(struct object *obj, int type, void *data, struct fsck_options *options) |
271b8d25 MK |
218 | { |
219 | if (!obj) | |
220 | return 1; | |
092c55d0 | 221 | obj->flags |= USED; |
271b8d25 | 222 | return 0; |
f1f0d088 PB |
223 | } |
224 | ||
8d8c2a5a JK |
225 | static void mark_unreachable_referents(const struct object_id *oid) |
226 | { | |
227 | struct fsck_options options = FSCK_OPTIONS_DEFAULT; | |
d0229abd | 228 | struct object *obj = lookup_object(the_repository, oid); |
8d8c2a5a JK |
229 | |
230 | if (!obj || !(obj->flags & HAS_OBJ)) | |
231 | return; /* not part of our original set */ | |
232 | if (obj->flags & REACHABLE) | |
233 | return; /* reachable objects already traversed */ | |
234 | ||
235 | /* | |
236 | * Avoid passing OBJ_NONE to fsck_walk, which will parse the object | |
237 | * (and we want to avoid parsing blobs). | |
238 | */ | |
239 | if (obj->type == OBJ_NONE) { | |
240 | enum object_type type = oid_object_info(the_repository, | |
241 | &obj->oid, NULL); | |
242 | if (type > 0) | |
243 | object_as_type(the_repository, obj, type, 0); | |
244 | } | |
245 | ||
246 | options.walk = mark_used; | |
247 | fsck_walk(obj, NULL, &options); | |
248 | } | |
249 | ||
250 | static int mark_loose_unreachable_referents(const struct object_id *oid, | |
251 | const char *path, | |
252 | void *data) | |
253 | { | |
254 | mark_unreachable_referents(oid); | |
255 | return 0; | |
256 | } | |
257 | ||
258 | static int mark_packed_unreachable_referents(const struct object_id *oid, | |
259 | struct packed_git *pack, | |
260 | uint32_t pos, | |
261 | void *data) | |
262 | { | |
263 | mark_unreachable_referents(oid); | |
264 | return 0; | |
265 | } | |
266 | ||
18af29f2 LT |
267 | /* |
268 | * Check a single reachable object | |
269 | */ | |
270 | static void check_reachable_object(struct object *obj) | |
271 | { | |
18af29f2 LT |
272 | /* |
273 | * We obviously want the object to be parsed, | |
274 | * except if it was in a pack-file and we didn't | |
275 | * do a full fsck | |
276 | */ | |
6e454b9a | 277 | if (!(obj->flags & HAS_OBJ)) { |
caba7fc3 JT |
278 | if (is_promisor_object(&obj->oid)) |
279 | return; | |
14c3c80c | 280 | if (has_object_pack(&obj->oid)) |
18af29f2 | 281 | return; /* it is in pack - forget about it */ |
82ef89b3 JK |
282 | printf_ln(_("missing %s %s"), |
283 | printable_type(&obj->oid, obj->type), | |
284 | describe_object(&obj->oid)); | |
e2b4f635 | 285 | errors_found |= ERROR_REACHABLE; |
18af29f2 LT |
286 | return; |
287 | } | |
18af29f2 LT |
288 | } |
289 | ||
290 | /* | |
291 | * Check a single unreachable object | |
292 | */ | |
293 | static void check_unreachable_object(struct object *obj) | |
294 | { | |
295 | /* | |
296 | * Missing unreachable object? Ignore it. It's not like | |
297 | * we miss it (since it can't be reached), nor do we want | |
298 | * to complain about it being unreachable (since it does | |
299 | * not exist). | |
300 | */ | |
b4584e4f | 301 | if (!(obj->flags & HAS_OBJ)) |
18af29f2 LT |
302 | return; |
303 | ||
304 | /* | |
305 | * Unreachable object that exists? Show it if asked to, | |
306 | * since this is something that is prunable. | |
307 | */ | |
308 | if (show_unreachable) { | |
82ef89b3 JK |
309 | printf_ln(_("unreachable %s %s"), |
310 | printable_type(&obj->oid, obj->type), | |
311 | describe_object(&obj->oid)); | |
18af29f2 LT |
312 | return; |
313 | } | |
314 | ||
315 | /* | |
092c55d0 | 316 | * "!USED" means that nothing at all points to it, including |
3dff5379 | 317 | * other unreachable objects. In other words, it's the "tip" |
18af29f2 LT |
318 | * of some set of unreachable objects, usually a commit that |
319 | * got dropped. | |
320 | * | |
321 | * Such starting points are more interesting than some random | |
322 | * set of unreachable objects, so we show them even if the user | |
323 | * hasn't asked for _all_ unreachable objects. If you have | |
324 | * deleted a branch by mistake, this is a prime candidate to | |
325 | * start looking at, for example. | |
326 | */ | |
092c55d0 | 327 | if (!(obj->flags & USED)) { |
c6a13b2c | 328 | if (show_dangling) |
82ef89b3 JK |
329 | printf_ln(_("dangling %s %s"), |
330 | printable_type(&obj->oid, obj->type), | |
331 | describe_object(&obj->oid)); | |
68f6c019 | 332 | if (write_lost_and_found) { |
fcd12db6 | 333 | char *filename = git_pathdup("lost-found/%s/%s", |
68f6c019 | 334 | obj->type == OBJ_COMMIT ? "commit" : "other", |
82ef89b3 | 335 | describe_object(&obj->oid)); |
68f6c019 JS |
336 | FILE *f; |
337 | ||
dcf69262 | 338 | if (safe_create_leading_directories_const(filename)) { |
674ba340 | 339 | error(_("could not create lost-found")); |
fcd12db6 | 340 | free(filename); |
68f6c019 JS |
341 | return; |
342 | } | |
23a9e071 | 343 | f = xfopen(filename, "w"); |
16a7fcfe | 344 | if (obj->type == OBJ_BLOB) { |
7eda0e4f | 345 | if (stream_blob_to_fd(fileno(f), &obj->oid, NULL, 1)) |
674ba340 | 346 | die_errno(_("could not write '%s'"), filename); |
16a7fcfe | 347 | } else |
82ef89b3 | 348 | fprintf(f, "%s\n", describe_object(&obj->oid)); |
47d32af2 | 349 | if (fclose(f)) |
674ba340 | 350 | die_errno(_("could not finish '%s'"), |
d824cbba | 351 | filename); |
fcd12db6 | 352 | free(filename); |
68f6c019 | 353 | } |
18af29f2 LT |
354 | return; |
355 | } | |
356 | ||
357 | /* | |
358 | * Otherwise? It's there, it's unreachable, and some other unreachable | |
359 | * object points to it. Ignore it - it's not interesting, and we showed | |
360 | * all the interesting cases above. | |
361 | */ | |
362 | } | |
363 | ||
364 | static void check_object(struct object *obj) | |
365 | { | |
20f1eb6b | 366 | if (verbose) |
82ef89b3 | 367 | fprintf_ln(stderr, _("Checking %s"), describe_object(&obj->oid)); |
20f1eb6b | 368 | |
18af29f2 LT |
369 | if (obj->flags & REACHABLE) |
370 | check_reachable_object(obj); | |
371 | else | |
372 | check_unreachable_object(obj); | |
373 | } | |
f1f0d088 | 374 | |
8ba0bbb2 LT |
375 | static void check_connectivity(void) |
376 | { | |
fc046a75 | 377 | int i, max; |
8ba0bbb2 | 378 | |
04d39759 LT |
379 | /* Traverse the pending reachable objects */ |
380 | traverse_reachable(); | |
381 | ||
8d8c2a5a JK |
382 | /* |
383 | * With --connectivity-only, we won't have actually opened and marked | |
384 | * unreachable objects with USED. Do that now to make --dangling, etc | |
385 | * accurate. | |
386 | */ | |
387 | if (connectivity_only && (show_dangling || write_lost_and_found)) { | |
388 | /* | |
389 | * Even though we already have a "struct object" for each of | |
390 | * these in memory, we must not iterate over the internal | |
391 | * object hash as we do below. Our loop would potentially | |
392 | * resize the hash, making our iteration invalid. | |
393 | * | |
394 | * Instead, we'll just go back to the source list of objects, | |
395 | * and ignore any that weren't present in our earlier | |
396 | * traversal. | |
397 | */ | |
398 | for_each_loose_object(mark_loose_unreachable_referents, NULL, 0); | |
399 | for_each_packed_object(mark_packed_unreachable_referents, NULL, 0); | |
400 | } | |
401 | ||
8ba0bbb2 | 402 | /* Look up all the requirements, warn about missing objects.. */ |
fc046a75 | 403 | max = get_max_object_index(); |
20f1eb6b | 404 | if (verbose) |
674ba340 | 405 | fprintf_ln(stderr, _("Checking connectivity (%d objects)"), max); |
20f1eb6b | 406 | |
fc046a75 | 407 | for (i = 0; i < max; i++) { |
fc046a75 | 408 | struct object *obj = get_indexed_object(i); |
8ba0bbb2 | 409 | |
18af29f2 LT |
410 | if (obj) |
411 | check_object(obj); | |
8ba0bbb2 LT |
412 | } |
413 | } | |
414 | ||
7ac4f3a0 | 415 | static int fsck_obj(struct object *obj, void *buffer, unsigned long size) |
85003492 | 416 | { |
83cd6f90 RS |
417 | int err; |
418 | ||
ba002f3b | 419 | if (obj->flags & SEEN) |
85003492 | 420 | return 0; |
ba002f3b | 421 | obj->flags |= SEEN; |
85003492 | 422 | |
20f1eb6b | 423 | if (verbose) |
674ba340 | 424 | fprintf_ln(stderr, _("Checking %s %s"), |
82ef89b3 JK |
425 | printable_type(&obj->oid, obj->type), |
426 | describe_object(&obj->oid)); | |
42ea9cb2 | 427 | |
22410549 | 428 | if (fsck_walk(obj, NULL, &fsck_obj_options)) |
674ba340 | 429 | objerror(obj, _("broken links")); |
7ac4f3a0 | 430 | err = fsck_object(obj, buffer, size, &fsck_obj_options); |
83cd6f90 RS |
431 | if (err) |
432 | goto out; | |
1ea34e36 | 433 | |
ba002f3b MK |
434 | if (obj->type == OBJ_COMMIT) { |
435 | struct commit *commit = (struct commit *) obj; | |
de2eb7f6 | 436 | |
ba002f3b | 437 | if (!commit->parents && show_root) |
674ba340 | 438 | printf_ln(_("root %s"), |
82ef89b3 | 439 | describe_object(&commit->object.oid)); |
ba002f3b | 440 | } |
92d4c85d | 441 | |
ba002f3b MK |
442 | if (obj->type == OBJ_TAG) { |
443 | struct tag *tag = (struct tag *) obj; | |
20f1eb6b | 444 | |
ba002f3b | 445 | if (show_tags && tag->tagged) { |
674ba340 | 446 | printf_ln(_("tagged %s %s (%s) in %s"), |
82ef89b3 JK |
447 | printable_type(&tag->tagged->oid, tag->tagged->type), |
448 | describe_object(&tag->tagged->oid), | |
bbb15c51 | 449 | tag->tag, |
82ef89b3 | 450 | describe_object(&tag->object.oid)); |
ba002f3b | 451 | } |
92d4c85d | 452 | } |
889262ea | 453 | |
83cd6f90 RS |
454 | out: |
455 | if (obj->type == OBJ_TREE) | |
456 | free_tree_buffer((struct tree *)obj); | |
457 | if (obj->type == OBJ_COMMIT) | |
6a7895fd SB |
458 | free_commit_buffer(the_repository->parsed_objects, |
459 | (struct commit *)obj); | |
83cd6f90 | 460 | return err; |
20222118 LT |
461 | } |
462 | ||
9fd75046 | 463 | static int fsck_obj_buffer(const struct object_id *oid, enum object_type type, |
c9486eb0 NTND |
464 | unsigned long size, void *buffer, int *eaten) |
465 | { | |
ec9d2249 NTND |
466 | /* |
467 | * Note, buffer may be NULL if type is OBJ_BLOB. See | |
468 | * verify_packfile(), data_valid variable for details. | |
469 | */ | |
c9486eb0 | 470 | struct object *obj; |
1ec5bfd2 SB |
471 | obj = parse_object_buffer(the_repository, oid, type, size, buffer, |
472 | eaten); | |
c9486eb0 NTND |
473 | if (!obj) { |
474 | errors_found |= ERROR_OBJECT; | |
674ba340 NTND |
475 | return error(_("%s: object corrupt or missing"), |
476 | oid_to_hex(oid)); | |
c9486eb0 | 477 | } |
092c55d0 JT |
478 | obj->flags &= ~(REACHABLE | SEEN); |
479 | obj->flags |= HAS_OBJ; | |
7ac4f3a0 | 480 | return fsck_obj(obj, buffer, size); |
c9486eb0 NTND |
481 | } |
482 | ||
96f1e58f | 483 | static int default_refs; |
944d8589 | 484 | |
9461d272 | 485 | static void fsck_handle_reflog_oid(const char *refname, struct object_id *oid, |
dddbad72 | 486 | timestamp_t timestamp) |
55dd5526 JH |
487 | { |
488 | struct object *obj; | |
489 | ||
9461d272 | 490 | if (!is_null_oid(oid)) { |
d0229abd | 491 | obj = lookup_object(the_repository, oid); |
c2d17b3b | 492 | if (obj && (obj->flags & HAS_OBJ)) { |
a59cfb32 | 493 | if (timestamp) |
73390290 | 494 | fsck_put_object_name(&fsck_walk_options, oid, |
a59cfb32 JK |
495 | "%s@{%"PRItime"}", |
496 | refname, timestamp); | |
092c55d0 | 497 | obj->flags |= USED; |
271b8d25 | 498 | mark_object_reachable(obj); |
498f1f61 | 499 | } else if (!is_promisor_object(oid)) { |
674ba340 NTND |
500 | error(_("%s: invalid reflog entry %s"), |
501 | refname, oid_to_hex(oid)); | |
19bf6c9b | 502 | errors_found |= ERROR_REACHABLE; |
55dd5526 JH |
503 | } |
504 | } | |
d66ae59b MH |
505 | } |
506 | ||
9461d272 | 507 | static int fsck_handle_reflog_ent(struct object_id *ooid, struct object_id *noid, |
dddbad72 | 508 | const char *email, timestamp_t timestamp, int tz, |
883d60fa | 509 | const char *message, void *cb_data) |
55dd5526 | 510 | { |
19bf6c9b | 511 | const char *refname = cb_data; |
55dd5526 | 512 | |
20f1eb6b | 513 | if (verbose) |
674ba340 NTND |
514 | fprintf_ln(stderr, _("Checking reflog %s->%s"), |
515 | oid_to_hex(ooid), oid_to_hex(noid)); | |
20f1eb6b | 516 | |
9461d272 | 517 | fsck_handle_reflog_oid(refname, ooid, 0); |
518 | fsck_handle_reflog_oid(refname, noid, timestamp); | |
55dd5526 JH |
519 | return 0; |
520 | } | |
521 | ||
635b99a0 MH |
522 | static int fsck_handle_reflog(const char *logname, const struct object_id *oid, |
523 | int flag, void *cb_data) | |
eb8381c8 | 524 | { |
b29759d8 NTND |
525 | struct strbuf refname = STRBUF_INIT; |
526 | ||
527 | strbuf_worktree_ref(cb_data, &refname, logname); | |
528 | for_each_reflog_ent(refname.buf, fsck_handle_reflog_ent, refname.buf); | |
529 | strbuf_release(&refname); | |
eb8381c8 NP |
530 | return 0; |
531 | } | |
532 | ||
635b99a0 MH |
533 | static int fsck_handle_ref(const char *refname, const struct object_id *oid, |
534 | int flag, void *cb_data) | |
1024932f | 535 | { |
1024932f LT |
536 | struct object *obj; |
537 | ||
109cd76d | 538 | obj = parse_object(the_repository, oid); |
8a498a05 | 539 | if (!obj) { |
43f25158 JT |
540 | if (is_promisor_object(oid)) { |
541 | /* | |
542 | * Increment default_refs anyway, because this is a | |
543 | * valid ref. | |
544 | */ | |
545 | default_refs++; | |
546 | return 0; | |
547 | } | |
674ba340 NTND |
548 | error(_("%s: invalid sha1 pointer %s"), |
549 | refname, oid_to_hex(oid)); | |
30d1038d | 550 | errors_found |= ERROR_REACHABLE; |
944d8589 LT |
551 | /* We'll continue with the rest despite the error.. */ |
552 | return 0; | |
8a498a05 | 553 | } |
122f76f5 | 554 | if (obj->type != OBJ_COMMIT && is_branch(refname)) { |
674ba340 | 555 | error(_("%s: not a commit"), refname); |
122f76f5 JH |
556 | errors_found |= ERROR_REFS; |
557 | } | |
944d8589 | 558 | default_refs++; |
092c55d0 | 559 | obj->flags |= USED; |
a59cfb32 | 560 | fsck_put_object_name(&fsck_walk_options, |
73390290 | 561 | oid, "%s", refname); |
271b8d25 | 562 | mark_object_reachable(obj); |
55dd5526 | 563 | |
7c4d07c7 | 564 | return 0; |
1024932f LT |
565 | } |
566 | ||
b29759d8 NTND |
567 | static int fsck_head_link(const char *head_ref_name, |
568 | const char **head_points_at, | |
a8c754d4 EN |
569 | struct object_id *head_oid); |
570 | ||
1024932f LT |
571 | static void get_default_heads(void) |
572 | { | |
b29759d8 | 573 | struct worktree **worktrees, **p; |
a8c754d4 EN |
574 | const char *head_points_at; |
575 | struct object_id head_oid; | |
576 | ||
635b99a0 | 577 | for_each_rawref(fsck_handle_ref, NULL); |
b29759d8 NTND |
578 | |
579 | worktrees = get_worktrees(0); | |
580 | for (p = worktrees; *p; p++) { | |
581 | struct worktree *wt = *p; | |
582 | struct strbuf ref = STRBUF_INIT; | |
583 | ||
584 | strbuf_worktree_ref(wt, &ref, "HEAD"); | |
585 | fsck_head_link(ref.buf, &head_points_at, &head_oid); | |
586 | if (head_points_at && !is_null_oid(&head_oid)) | |
587 | fsck_handle_ref(ref.buf, &head_oid, 0, NULL); | |
588 | strbuf_release(&ref); | |
589 | ||
590 | if (include_reflogs) | |
591 | refs_for_each_reflog(get_worktree_ref_store(wt), | |
592 | fsck_handle_reflog, wt); | |
593 | } | |
594 | free_worktrees(worktrees); | |
071fa89e LT |
595 | |
596 | /* | |
597 | * Not having any default heads isn't really fatal, but | |
598 | * it does mean that "--unreachable" no longer makes any | |
599 | * sense (since in this case everything will obviously | |
600 | * be unreachable by definition. | |
601 | * | |
602 | * Showing dangling objects is valid, though (as those | |
603 | * dangling objects are likely lost heads). | |
604 | * | |
605 | * So we just print a warning about it, and clear the | |
606 | * "show_unreachable" flag. | |
607 | */ | |
608 | if (!default_refs) { | |
674ba340 | 609 | fprintf_ln(stderr, _("notice: No default references")); |
071fa89e LT |
610 | show_unreachable = 0; |
611 | } | |
1024932f LT |
612 | } |
613 | ||
7ac4f3a0 | 614 | static int fsck_loose(const struct object_id *oid, const char *path, void *data) |
c68b489e JK |
615 | { |
616 | struct object *obj; | |
c68b489e JK |
617 | enum object_type type; |
618 | unsigned long size; | |
7ac4f3a0 | 619 | void *contents; |
c68b489e JK |
620 | int eaten; |
621 | ||
7913f53b | 622 | if (read_loose_object(path, oid, &type, &size, &contents) < 0) { |
7ac4f3a0 | 623 | errors_found |= ERROR_OBJECT; |
674ba340 | 624 | error(_("%s: object corrupt or missing: %s"), |
7ac4f3a0 JK |
625 | oid_to_hex(oid), path); |
626 | return 0; /* keep checking other objects */ | |
627 | } | |
c68b489e JK |
628 | |
629 | if (!contents && type != OBJ_BLOB) | |
7ac4f3a0 | 630 | BUG("read_loose_object streamed a non-blob"); |
c68b489e | 631 | |
1ec5bfd2 SB |
632 | obj = parse_object_buffer(the_repository, oid, type, size, |
633 | contents, &eaten); | |
634 | ||
c68b489e JK |
635 | if (!obj) { |
636 | errors_found |= ERROR_OBJECT; | |
674ba340 | 637 | error(_("%s: object could not be parsed: %s"), |
76c1d9a0 | 638 | oid_to_hex(oid), path); |
7ac4f3a0 JK |
639 | if (!eaten) |
640 | free(contents); | |
c68b489e JK |
641 | return 0; /* keep checking other objects */ |
642 | } | |
643 | ||
092c55d0 JT |
644 | obj->flags &= ~(REACHABLE | SEEN); |
645 | obj->flags |= HAS_OBJ; | |
7ac4f3a0 | 646 | if (fsck_obj(obj, contents, size)) |
f0766bf9 | 647 | errors_found |= ERROR_OBJECT; |
7ac4f3a0 JK |
648 | |
649 | if (!eaten) | |
650 | free(contents); | |
651 | return 0; /* keep checking other objects, even if we saw an error */ | |
f0766bf9 JK |
652 | } |
653 | ||
654 | static int fsck_cruft(const char *basename, const char *path, void *data) | |
655 | { | |
656 | if (!starts_with(basename, "tmp_obj_")) | |
674ba340 | 657 | fprintf_ln(stderr, _("bad sha1 file: %s"), path); |
f0766bf9 JK |
658 | return 0; |
659 | } | |
660 | ||
70c49050 | 661 | static int fsck_subdir(unsigned int nr, const char *path, void *progress) |
f0766bf9 JK |
662 | { |
663 | display_progress(progress, nr + 1); | |
664 | return 0; | |
665 | } | |
666 | ||
8a498a05 JH |
667 | static void fsck_object_dir(const char *path) |
668 | { | |
1e49f22f | 669 | struct progress *progress = NULL; |
20f1eb6b JS |
670 | |
671 | if (verbose) | |
674ba340 | 672 | fprintf_ln(stderr, _("Checking object directory")); |
20f1eb6b | 673 | |
1e49f22f | 674 | if (show_progress) |
754dbc43 | 675 | progress = start_progress(_("Checking object directories"), 256); |
f0766bf9 JK |
676 | |
677 | for_each_loose_file_in_objdir(path, fsck_loose, fsck_cruft, fsck_subdir, | |
678 | progress); | |
679 | display_progress(progress, 256); | |
1e49f22f | 680 | stop_progress(&progress); |
8a498a05 JH |
681 | } |
682 | ||
b29759d8 NTND |
683 | static int fsck_head_link(const char *head_ref_name, |
684 | const char **head_points_at, | |
a8c754d4 | 685 | struct object_id *head_oid) |
c3330383 | 686 | { |
8eb2d0be | 687 | int null_is_error = 0; |
8eb2d0be | 688 | |
20f1eb6b | 689 | if (verbose) |
3813a89f | 690 | fprintf_ln(stderr, _("Checking %s link"), head_ref_name); |
20f1eb6b | 691 | |
b29759d8 | 692 | *head_points_at = resolve_ref_unsafe(head_ref_name, 0, head_oid, NULL); |
a8c754d4 | 693 | if (!*head_points_at) { |
122f76f5 | 694 | errors_found |= ERROR_REFS; |
3813a89f | 695 | return error(_("invalid %s"), head_ref_name); |
122f76f5 | 696 | } |
b29759d8 | 697 | if (!strcmp(*head_points_at, head_ref_name)) |
8eb2d0be JH |
698 | /* detached HEAD */ |
699 | null_is_error = 1; | |
a8c754d4 | 700 | else if (!starts_with(*head_points_at, "refs/heads/")) { |
122f76f5 | 701 | errors_found |= ERROR_REFS; |
3813a89f | 702 | return error(_("%s points to something strange (%s)"), |
b29759d8 | 703 | head_ref_name, *head_points_at); |
122f76f5 | 704 | } |
a8c754d4 | 705 | if (is_null_oid(head_oid)) { |
122f76f5 JH |
706 | if (null_is_error) { |
707 | errors_found |= ERROR_REFS; | |
3813a89f | 708 | return error(_("%s: detached HEAD points at nothing"), |
b29759d8 | 709 | head_ref_name); |
122f76f5 | 710 | } |
3813a89f JH |
711 | fprintf_ln(stderr, |
712 | _("notice: %s points to an unborn branch (%s)"), | |
713 | head_ref_name, *head_points_at + 11); | |
8eb2d0be | 714 | } |
c3330383 LT |
715 | return 0; |
716 | } | |
717 | ||
53dc3f3e JH |
718 | static int fsck_cache_tree(struct cache_tree *it) |
719 | { | |
720 | int i; | |
721 | int err = 0; | |
722 | ||
20f1eb6b | 723 | if (verbose) |
674ba340 | 724 | fprintf_ln(stderr, _("Checking cache tree")); |
20f1eb6b | 725 | |
53dc3f3e | 726 | if (0 <= it->entry_count) { |
109cd76d | 727 | struct object *obj = parse_object(the_repository, &it->oid); |
6d60bbef | 728 | if (!obj) { |
674ba340 | 729 | error(_("%s: invalid sha1 pointer in cache-tree"), |
e0a92804 | 730 | oid_to_hex(&it->oid)); |
122f76f5 | 731 | errors_found |= ERROR_REFS; |
6d60bbef JH |
732 | return 1; |
733 | } | |
092c55d0 | 734 | obj->flags |= USED; |
73390290 | 735 | fsck_put_object_name(&fsck_walk_options, &it->oid, ":"); |
a1cdc251 | 736 | mark_object_reachable(obj); |
1974632c | 737 | if (obj->type != OBJ_TREE) |
674ba340 | 738 | err |= objerror(obj, _("non-tree in cache-tree")); |
53dc3f3e JH |
739 | } |
740 | for (i = 0; i < it->subtree_nr; i++) | |
741 | err |= fsck_cache_tree(it->down[i]->cache_tree); | |
742 | return err; | |
743 | } | |
744 | ||
76c1d9a0 | 745 | static void mark_object_for_connectivity(const struct object_id *oid) |
3e3f8bd6 | 746 | { |
0ebbcf70 | 747 | struct object *obj = lookup_unknown_object(oid); |
3e3f8bd6 JK |
748 | obj->flags |= HAS_OBJ; |
749 | } | |
750 | ||
76c1d9a0 | 751 | static int mark_loose_for_connectivity(const struct object_id *oid, |
3e3f8bd6 JK |
752 | const char *path, |
753 | void *data) | |
754 | { | |
76c1d9a0 | 755 | mark_object_for_connectivity(oid); |
3e3f8bd6 JK |
756 | return 0; |
757 | } | |
758 | ||
76c1d9a0 | 759 | static int mark_packed_for_connectivity(const struct object_id *oid, |
3e3f8bd6 JK |
760 | struct packed_git *pack, |
761 | uint32_t pos, | |
762 | void *data) | |
763 | { | |
76c1d9a0 | 764 | mark_object_for_connectivity(oid); |
3e3f8bd6 JK |
765 | return 0; |
766 | } | |
767 | ||
5ac0a206 | 768 | static char const * const fsck_usage[] = { |
9c9b4f2f | 769 | N_("git fsck [<options>] [<object>...]"), |
5ac0a206 PH |
770 | NULL |
771 | }; | |
772 | ||
773 | static struct option fsck_opts[] = { | |
cf8fe315 | 774 | OPT__VERBOSE(&verbose, N_("be verbose")), |
d5d09d47 | 775 | OPT_BOOL(0, "unreachable", &show_unreachable, N_("show unreachable objects")), |
cf8fe315 | 776 | OPT_BOOL(0, "dangling", &show_dangling, N_("show dangling objects")), |
d5d09d47 SB |
777 | OPT_BOOL(0, "tags", &show_tags, N_("report tags")), |
778 | OPT_BOOL(0, "root", &show_root, N_("report root nodes")), | |
779 | OPT_BOOL(0, "cache", &keep_cache_objects, N_("make index objects head nodes")), | |
780 | OPT_BOOL(0, "reflogs", &include_reflogs, N_("make reflogs head nodes (default)")), | |
781 | OPT_BOOL(0, "full", &check_full, N_("also consider packs and alternate objects")), | |
02976bf8 | 782 | OPT_BOOL(0, "connectivity-only", &connectivity_only, N_("check only connectivity")), |
d5d09d47 SB |
783 | OPT_BOOL(0, "strict", &check_strict, N_("enable more strict checking")), |
784 | OPT_BOOL(0, "lost-found", &write_lost_and_found, | |
cf8fe315 NTND |
785 | N_("write dangling objects in .git/lost-found")), |
786 | OPT_BOOL(0, "progress", &show_progress, N_("show progress")), | |
90cf590f | 787 | OPT_BOOL(0, "name-objects", &name_objects, N_("show verbose names for reachable objects")), |
5ac0a206 PH |
788 | OPT_END(), |
789 | }; | |
e2b4f635 | 790 | |
baffc0e7 | 791 | int cmd_fsck(int argc, const char **argv, const char *prefix) |
20222118 | 792 | { |
78e7b98f | 793 | int i; |
263db403 | 794 | struct object_directory *odb; |
20222118 | 795 | |
8b4c0103 JT |
796 | /* fsck knows how to handle missing promisor objects */ |
797 | fetch_if_missing = 0; | |
798 | ||
e2b4f635 | 799 | errors_found = 0; |
6ebd1caf | 800 | read_replace_refs = 0; |
61e2b015 | 801 | |
37782920 | 802 | argc = parse_options(argc, argv, prefix, fsck_opts, fsck_usage, 0); |
1e49f22f | 803 | |
22410549 JS |
804 | fsck_walk_options.walk = mark_object; |
805 | fsck_obj_options.walk = mark_used; | |
806 | fsck_obj_options.error_func = fsck_error_func; | |
807 | if (check_strict) | |
808 | fsck_obj_options.strict = 1; | |
809 | ||
1e49f22f NTND |
810 | if (show_progress == -1) |
811 | show_progress = isatty(2); | |
812 | if (verbose) | |
813 | show_progress = 0; | |
814 | ||
5ac0a206 PH |
815 | if (write_lost_and_found) { |
816 | check_full = 1; | |
817 | include_reflogs = 0; | |
889262ea LT |
818 | } |
819 | ||
90cf590f | 820 | if (name_objects) |
a59cfb32 | 821 | fsck_enable_object_names(&fsck_walk_options); |
90cf590f | 822 | |
2becf00f JS |
823 | git_config(fsck_config, NULL); |
824 | ||
3e3f8bd6 JK |
825 | if (connectivity_only) { |
826 | for_each_loose_object(mark_loose_for_connectivity, NULL, 0); | |
827 | for_each_packed_object(mark_packed_for_connectivity, NULL, 0); | |
828 | } else { | |
0b209034 | 829 | prepare_alt_odb(the_repository); |
f0eaf638 | 830 | for (odb = the_repository->objects->odb; odb; odb = odb->next) |
263db403 | 831 | fsck_object_dir(odb->path); |
e15ef669 | 832 | |
3e3f8bd6 JK |
833 | if (check_full) { |
834 | struct packed_git *p; | |
835 | uint32_t total = 0, count = 0; | |
836 | struct progress *progress = NULL; | |
e15ef669 | 837 | |
3e3f8bd6 | 838 | if (show_progress) { |
454ea2e4 | 839 | for (p = get_all_packs(the_repository); p; |
a80d72db | 840 | p = p->next) { |
3e3f8bd6 JK |
841 | if (open_pack_index(p)) |
842 | continue; | |
843 | total += p->num_objects; | |
844 | } | |
1e49f22f | 845 | |
3e3f8bd6 JK |
846 | progress = start_progress(_("Checking objects"), total); |
847 | } | |
454ea2e4 | 848 | for (p = get_all_packs(the_repository); p; |
a80d72db | 849 | p = p->next) { |
3e3f8bd6 | 850 | /* verify gives error messages itself */ |
94e10825 NTND |
851 | if (verify_pack(the_repository, |
852 | p, fsck_obj_buffer, | |
3e3f8bd6 JK |
853 | progress, count)) |
854 | errors_found |= ERROR_PACK; | |
855 | count += p->num_objects; | |
1e49f22f | 856 | } |
3e3f8bd6 | 857 | stop_progress(&progress); |
1e49f22f | 858 | } |
1995b5e0 JK |
859 | |
860 | if (fsck_finish(&fsck_obj_options)) | |
861 | errors_found |= ERROR_OBJECT; | |
bcee6fd8 LT |
862 | } |
863 | ||
3aed2fda | 864 | for (i = 0; i < argc; i++) { |
a6080a0a | 865 | const char *arg = argv[i]; |
aca6065c | 866 | struct object_id oid; |
867 | if (!get_oid(arg, &oid)) { | |
5abddd1e | 868 | struct object *obj = lookup_object(the_repository, |
d0229abd | 869 | &oid); |
e1a1388d | 870 | |
c2d17b3b | 871 | if (!obj || !(obj->flags & HAS_OBJ)) { |
096c9b8b JT |
872 | if (is_promisor_object(&oid)) |
873 | continue; | |
674ba340 | 874 | error(_("%s: object missing"), oid_to_hex(&oid)); |
c6c7b16d | 875 | errors_found |= ERROR_OBJECT; |
e1a1388d | 876 | continue; |
c6c7b16d | 877 | } |
e1a1388d | 878 | |
092c55d0 | 879 | obj->flags |= USED; |
73390290 | 880 | fsck_put_object_name(&fsck_walk_options, &oid, |
a59cfb32 | 881 | "%s", arg); |
271b8d25 | 882 | mark_object_reachable(obj); |
d9839e03 LT |
883 | continue; |
884 | } | |
674ba340 | 885 | error(_("invalid parameter: expected sha1, got '%s'"), arg); |
c6c7b16d | 886 | errors_found |= ERROR_OBJECT; |
d9839e03 | 887 | } |
d9839e03 | 888 | |
1024932f | 889 | /* |
d1af002d | 890 | * If we've not been given any explicit head information, do the |
e7bd907d LT |
891 | * default ones from .git/refs. We also consider the index file |
892 | * in this case (ie this implies --cache). | |
1024932f | 893 | */ |
c3271a0e | 894 | if (!argc) { |
1024932f LT |
895 | get_default_heads(); |
896 | keep_cache_objects = 1; | |
897 | } | |
898 | ||
ae7c0c92 | 899 | if (keep_cache_objects) { |
a33fc72f | 900 | verify_index_checksum = 1; |
00ec50e5 | 901 | verify_ce_order = 1; |
ae7c0c92 JH |
902 | read_cache(); |
903 | for (i = 0; i < active_nr; i++) { | |
8d9721c8 LT |
904 | unsigned int mode; |
905 | struct blob *blob; | |
ae7c0c92 | 906 | struct object *obj; |
8d9721c8 | 907 | |
7a51ed66 | 908 | mode = active_cache[i]->ce_mode; |
302b9282 | 909 | if (S_ISGITLINK(mode)) |
8d9721c8 | 910 | continue; |
da14a7ff SB |
911 | blob = lookup_blob(the_repository, |
912 | &active_cache[i]->oid); | |
ae7c0c92 JH |
913 | if (!blob) |
914 | continue; | |
915 | obj = &blob->object; | |
092c55d0 | 916 | obj->flags |= USED; |
73390290 | 917 | fsck_put_object_name(&fsck_walk_options, &obj->oid, |
a59cfb32 | 918 | ":%s", active_cache[i]->name); |
271b8d25 | 919 | mark_object_reachable(obj); |
ae7c0c92 | 920 | } |
53dc3f3e JH |
921 | if (active_cache_tree) |
922 | fsck_cache_tree(active_cache_tree); | |
ae7c0c92 JH |
923 | } |
924 | ||
8ba0bbb2 | 925 | check_connectivity(); |
e0fd51e1 | 926 | |
dade47c0 | 927 | if (!git_config_get_bool("core.commitgraph", &i) && i) { |
e0fd51e1 DS |
928 | struct child_process commit_graph_verify = CHILD_PROCESS_INIT; |
929 | const char *verify_argv[] = { "commit-graph", "verify", NULL, NULL, NULL }; | |
930 | ||
e0fd51e1 | 931 | prepare_alt_odb(the_repository); |
f0eaf638 | 932 | for (odb = the_repository->objects->odb; odb; odb = odb->next) { |
4d0984be JK |
933 | child_process_init(&commit_graph_verify); |
934 | commit_graph_verify.argv = verify_argv; | |
935 | commit_graph_verify.git_cmd = 1; | |
e0fd51e1 | 936 | verify_argv[2] = "--object-dir"; |
263db403 | 937 | verify_argv[3] = odb->path; |
e0fd51e1 DS |
938 | if (run_command(&commit_graph_verify)) |
939 | errors_found |= ERROR_COMMIT_GRAPH; | |
940 | } | |
941 | } | |
942 | ||
66ec0390 DS |
943 | if (!git_config_get_bool("core.multipackindex", &i) && i) { |
944 | struct child_process midx_verify = CHILD_PROCESS_INIT; | |
945 | const char *midx_argv[] = { "multi-pack-index", "verify", NULL, NULL, NULL }; | |
946 | ||
66ec0390 | 947 | prepare_alt_odb(the_repository); |
f0eaf638 | 948 | for (odb = the_repository->objects->odb; odb; odb = odb->next) { |
4d0984be JK |
949 | child_process_init(&midx_verify); |
950 | midx_verify.argv = midx_argv; | |
951 | midx_verify.git_cmd = 1; | |
66ec0390 | 952 | midx_argv[2] = "--object-dir"; |
263db403 | 953 | midx_argv[3] = odb->path; |
66ec0390 DS |
954 | if (run_command(&midx_verify)) |
955 | errors_found |= ERROR_COMMIT_GRAPH; | |
956 | } | |
957 | } | |
958 | ||
e2b4f635 | 959 | return errors_found; |
20222118 | 960 | } |