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1 | #include "builtin.h" | |
2 | #include "cache.h" | |
3 | #include "commit.h" | |
4 | #include "tree.h" | |
5 | #include "blob.h" | |
6 | #include "tag.h" | |
7 | #include "refs.h" | |
8 | #include "pack.h" | |
9 | #include "cache-tree.h" | |
10 | #include "tree-walk.h" | |
11 | #include "fsck.h" | |
12 | #include "parse-options.h" | |
13 | #include "dir.h" | |
14 | #include "progress.h" | |
15 | #include "streaming.h" | |
16 | #include "decorate.h" | |
17 | ||
18 | #define REACHABLE 0x0001 | |
19 | #define SEEN 0x0002 | |
20 | #define HAS_OBJ 0x0004 | |
21 | ||
22 | static int show_root; | |
23 | static int show_tags; | |
24 | static int show_unreachable; | |
25 | static int include_reflogs = 1; | |
26 | static int check_full = 1; | |
27 | static int connectivity_only; | |
28 | static int check_strict; | |
29 | static int keep_cache_objects; | |
30 | static struct fsck_options fsck_walk_options = FSCK_OPTIONS_DEFAULT; | |
31 | static struct fsck_options fsck_obj_options = FSCK_OPTIONS_DEFAULT; | |
32 | static struct object_id head_oid; | |
33 | static const char *head_points_at; | |
34 | static int errors_found; | |
35 | static int write_lost_and_found; | |
36 | static int verbose; | |
37 | static int show_progress = -1; | |
38 | static int show_dangling = 1; | |
39 | static int name_objects; | |
40 | #define ERROR_OBJECT 01 | |
41 | #define ERROR_REACHABLE 02 | |
42 | #define ERROR_PACK 04 | |
43 | #define ERROR_REFS 010 | |
44 | ||
45 | static const char *describe_object(struct object *obj) | |
46 | { | |
47 | static struct strbuf buf = STRBUF_INIT; | |
48 | char *name = name_objects ? | |
49 | lookup_decoration(fsck_walk_options.object_names, obj) : NULL; | |
50 | ||
51 | strbuf_reset(&buf); | |
52 | strbuf_addstr(&buf, oid_to_hex(&obj->oid)); | |
53 | if (name) | |
54 | strbuf_addf(&buf, " (%s)", name); | |
55 | ||
56 | return buf.buf; | |
57 | } | |
58 | ||
59 | static int fsck_config(const char *var, const char *value, void *cb) | |
60 | { | |
61 | if (strcmp(var, "fsck.skiplist") == 0) { | |
62 | const char *path; | |
63 | struct strbuf sb = STRBUF_INIT; | |
64 | ||
65 | if (git_config_pathname(&path, var, value)) | |
66 | return 1; | |
67 | strbuf_addf(&sb, "skiplist=%s", path); | |
68 | free((char *)path); | |
69 | fsck_set_msg_types(&fsck_obj_options, sb.buf); | |
70 | strbuf_release(&sb); | |
71 | return 0; | |
72 | } | |
73 | ||
74 | if (skip_prefix(var, "fsck.", &var)) { | |
75 | fsck_set_msg_type(&fsck_obj_options, var, value); | |
76 | return 0; | |
77 | } | |
78 | ||
79 | return git_default_config(var, value, cb); | |
80 | } | |
81 | ||
82 | static void objreport(struct object *obj, const char *msg_type, | |
83 | const char *err) | |
84 | { | |
85 | fprintf(stderr, "%s in %s %s: %s\n", | |
86 | msg_type, typename(obj->type), describe_object(obj), err); | |
87 | } | |
88 | ||
89 | static int objerror(struct object *obj, const char *err) | |
90 | { | |
91 | errors_found |= ERROR_OBJECT; | |
92 | objreport(obj, "error", err); | |
93 | return -1; | |
94 | } | |
95 | ||
96 | static int fsck_error_func(struct fsck_options *o, | |
97 | struct object *obj, int type, const char *message) | |
98 | { | |
99 | objreport(obj, (type == FSCK_WARN) ? "warning" : "error", message); | |
100 | return (type == FSCK_WARN) ? 0 : 1; | |
101 | } | |
102 | ||
103 | static struct object_array pending; | |
104 | ||
105 | static int mark_object(struct object *obj, int type, void *data, struct fsck_options *options) | |
106 | { | |
107 | struct object *parent = data; | |
108 | ||
109 | /* | |
110 | * The only case data is NULL or type is OBJ_ANY is when | |
111 | * mark_object_reachable() calls us. All the callers of | |
112 | * that function has non-NULL obj hence ... | |
113 | */ | |
114 | if (!obj) { | |
115 | /* ... these references to parent->fld are safe here */ | |
116 | printf("broken link from %7s %s\n", | |
117 | typename(parent->type), describe_object(parent)); | |
118 | printf("broken link from %7s %s\n", | |
119 | (type == OBJ_ANY ? "unknown" : typename(type)), "unknown"); | |
120 | errors_found |= ERROR_REACHABLE; | |
121 | return 1; | |
122 | } | |
123 | ||
124 | if (type != OBJ_ANY && obj->type != type) | |
125 | /* ... and the reference to parent is safe here */ | |
126 | objerror(parent, "wrong object type in link"); | |
127 | ||
128 | if (obj->flags & REACHABLE) | |
129 | return 0; | |
130 | obj->flags |= REACHABLE; | |
131 | if (!(obj->flags & HAS_OBJ)) { | |
132 | if (parent && !has_object_file(&obj->oid)) { | |
133 | printf("broken link from %7s %s\n", | |
134 | typename(parent->type), describe_object(parent)); | |
135 | printf(" to %7s %s\n", | |
136 | typename(obj->type), describe_object(obj)); | |
137 | errors_found |= ERROR_REACHABLE; | |
138 | } | |
139 | return 1; | |
140 | } | |
141 | ||
142 | add_object_array(obj, NULL, &pending); | |
143 | return 0; | |
144 | } | |
145 | ||
146 | static void mark_object_reachable(struct object *obj) | |
147 | { | |
148 | mark_object(obj, OBJ_ANY, NULL, NULL); | |
149 | } | |
150 | ||
151 | static int traverse_one_object(struct object *obj) | |
152 | { | |
153 | int result; | |
154 | struct tree *tree = NULL; | |
155 | ||
156 | if (obj->type == OBJ_TREE) { | |
157 | tree = (struct tree *)obj; | |
158 | if (parse_tree(tree) < 0) | |
159 | return 1; /* error already displayed */ | |
160 | } | |
161 | result = fsck_walk(obj, obj, &fsck_walk_options); | |
162 | if (tree) | |
163 | free_tree_buffer(tree); | |
164 | return result; | |
165 | } | |
166 | ||
167 | static int traverse_reachable(void) | |
168 | { | |
169 | struct progress *progress = NULL; | |
170 | unsigned int nr = 0; | |
171 | int result = 0; | |
172 | if (show_progress) | |
173 | progress = start_progress_delay(_("Checking connectivity"), 0, 0, 2); | |
174 | while (pending.nr) { | |
175 | struct object_array_entry *entry; | |
176 | struct object *obj; | |
177 | ||
178 | entry = pending.objects + --pending.nr; | |
179 | obj = entry->item; | |
180 | result |= traverse_one_object(obj); | |
181 | display_progress(progress, ++nr); | |
182 | } | |
183 | stop_progress(&progress); | |
184 | return !!result; | |
185 | } | |
186 | ||
187 | static int mark_used(struct object *obj, int type, void *data, struct fsck_options *options) | |
188 | { | |
189 | if (!obj) | |
190 | return 1; | |
191 | obj->used = 1; | |
192 | return 0; | |
193 | } | |
194 | ||
195 | /* | |
196 | * Check a single reachable object | |
197 | */ | |
198 | static void check_reachable_object(struct object *obj) | |
199 | { | |
200 | /* | |
201 | * We obviously want the object to be parsed, | |
202 | * except if it was in a pack-file and we didn't | |
203 | * do a full fsck | |
204 | */ | |
205 | if (!(obj->flags & HAS_OBJ)) { | |
206 | if (has_sha1_pack(obj->oid.hash)) | |
207 | return; /* it is in pack - forget about it */ | |
208 | if (connectivity_only && has_object_file(&obj->oid)) | |
209 | return; | |
210 | printf("missing %s %s\n", typename(obj->type), | |
211 | describe_object(obj)); | |
212 | errors_found |= ERROR_REACHABLE; | |
213 | return; | |
214 | } | |
215 | } | |
216 | ||
217 | /* | |
218 | * Check a single unreachable object | |
219 | */ | |
220 | static void check_unreachable_object(struct object *obj) | |
221 | { | |
222 | /* | |
223 | * Missing unreachable object? Ignore it. It's not like | |
224 | * we miss it (since it can't be reached), nor do we want | |
225 | * to complain about it being unreachable (since it does | |
226 | * not exist). | |
227 | */ | |
228 | if (!obj->parsed) | |
229 | return; | |
230 | ||
231 | /* | |
232 | * Unreachable object that exists? Show it if asked to, | |
233 | * since this is something that is prunable. | |
234 | */ | |
235 | if (show_unreachable) { | |
236 | printf("unreachable %s %s\n", typename(obj->type), | |
237 | describe_object(obj)); | |
238 | return; | |
239 | } | |
240 | ||
241 | /* | |
242 | * "!used" means that nothing at all points to it, including | |
243 | * other unreachable objects. In other words, it's the "tip" | |
244 | * of some set of unreachable objects, usually a commit that | |
245 | * got dropped. | |
246 | * | |
247 | * Such starting points are more interesting than some random | |
248 | * set of unreachable objects, so we show them even if the user | |
249 | * hasn't asked for _all_ unreachable objects. If you have | |
250 | * deleted a branch by mistake, this is a prime candidate to | |
251 | * start looking at, for example. | |
252 | */ | |
253 | if (!obj->used) { | |
254 | if (show_dangling) | |
255 | printf("dangling %s %s\n", typename(obj->type), | |
256 | describe_object(obj)); | |
257 | if (write_lost_and_found) { | |
258 | char *filename = git_pathdup("lost-found/%s/%s", | |
259 | obj->type == OBJ_COMMIT ? "commit" : "other", | |
260 | describe_object(obj)); | |
261 | FILE *f; | |
262 | ||
263 | if (safe_create_leading_directories_const(filename)) { | |
264 | error("Could not create lost-found"); | |
265 | free(filename); | |
266 | return; | |
267 | } | |
268 | if (!(f = fopen(filename, "w"))) | |
269 | die_errno("Could not open '%s'", filename); | |
270 | if (obj->type == OBJ_BLOB) { | |
271 | if (stream_blob_to_fd(fileno(f), &obj->oid, NULL, 1)) | |
272 | die_errno("Could not write '%s'", filename); | |
273 | } else | |
274 | fprintf(f, "%s\n", describe_object(obj)); | |
275 | if (fclose(f)) | |
276 | die_errno("Could not finish '%s'", | |
277 | filename); | |
278 | free(filename); | |
279 | } | |
280 | return; | |
281 | } | |
282 | ||
283 | /* | |
284 | * Otherwise? It's there, it's unreachable, and some other unreachable | |
285 | * object points to it. Ignore it - it's not interesting, and we showed | |
286 | * all the interesting cases above. | |
287 | */ | |
288 | } | |
289 | ||
290 | static void check_object(struct object *obj) | |
291 | { | |
292 | if (verbose) | |
293 | fprintf(stderr, "Checking %s\n", describe_object(obj)); | |
294 | ||
295 | if (obj->flags & REACHABLE) | |
296 | check_reachable_object(obj); | |
297 | else | |
298 | check_unreachable_object(obj); | |
299 | } | |
300 | ||
301 | static void check_connectivity(void) | |
302 | { | |
303 | int i, max; | |
304 | ||
305 | /* Traverse the pending reachable objects */ | |
306 | traverse_reachable(); | |
307 | ||
308 | /* Look up all the requirements, warn about missing objects.. */ | |
309 | max = get_max_object_index(); | |
310 | if (verbose) | |
311 | fprintf(stderr, "Checking connectivity (%d objects)\n", max); | |
312 | ||
313 | for (i = 0; i < max; i++) { | |
314 | struct object *obj = get_indexed_object(i); | |
315 | ||
316 | if (obj) | |
317 | check_object(obj); | |
318 | } | |
319 | } | |
320 | ||
321 | static int fsck_obj(struct object *obj) | |
322 | { | |
323 | if (obj->flags & SEEN) | |
324 | return 0; | |
325 | obj->flags |= SEEN; | |
326 | ||
327 | if (verbose) | |
328 | fprintf(stderr, "Checking %s %s\n", | |
329 | typename(obj->type), describe_object(obj)); | |
330 | ||
331 | if (fsck_walk(obj, NULL, &fsck_obj_options)) | |
332 | objerror(obj, "broken links"); | |
333 | if (fsck_object(obj, NULL, 0, &fsck_obj_options)) | |
334 | return -1; | |
335 | ||
336 | if (obj->type == OBJ_TREE) { | |
337 | struct tree *item = (struct tree *) obj; | |
338 | ||
339 | free_tree_buffer(item); | |
340 | } | |
341 | ||
342 | if (obj->type == OBJ_COMMIT) { | |
343 | struct commit *commit = (struct commit *) obj; | |
344 | ||
345 | free_commit_buffer(commit); | |
346 | ||
347 | if (!commit->parents && show_root) | |
348 | printf("root %s\n", describe_object(&commit->object)); | |
349 | } | |
350 | ||
351 | if (obj->type == OBJ_TAG) { | |
352 | struct tag *tag = (struct tag *) obj; | |
353 | ||
354 | if (show_tags && tag->tagged) { | |
355 | printf("tagged %s %s", typename(tag->tagged->type), | |
356 | describe_object(tag->tagged)); | |
357 | printf(" (%s) in %s\n", tag->tag, | |
358 | describe_object(&tag->object)); | |
359 | } | |
360 | } | |
361 | ||
362 | return 0; | |
363 | } | |
364 | ||
365 | static int fsck_sha1(const unsigned char *sha1) | |
366 | { | |
367 | struct object *obj = parse_object(sha1); | |
368 | if (!obj) { | |
369 | errors_found |= ERROR_OBJECT; | |
370 | return error("%s: object corrupt or missing", | |
371 | sha1_to_hex(sha1)); | |
372 | } | |
373 | obj->flags |= HAS_OBJ; | |
374 | return fsck_obj(obj); | |
375 | } | |
376 | ||
377 | static int fsck_obj_buffer(const unsigned char *sha1, enum object_type type, | |
378 | unsigned long size, void *buffer, int *eaten) | |
379 | { | |
380 | /* | |
381 | * Note, buffer may be NULL if type is OBJ_BLOB. See | |
382 | * verify_packfile(), data_valid variable for details. | |
383 | */ | |
384 | struct object *obj; | |
385 | obj = parse_object_buffer(sha1, type, size, buffer, eaten); | |
386 | if (!obj) { | |
387 | errors_found |= ERROR_OBJECT; | |
388 | return error("%s: object corrupt or missing", sha1_to_hex(sha1)); | |
389 | } | |
390 | obj->flags = HAS_OBJ; | |
391 | return fsck_obj(obj); | |
392 | } | |
393 | ||
394 | static int default_refs; | |
395 | ||
396 | static void fsck_handle_reflog_sha1(const char *refname, unsigned char *sha1, | |
397 | unsigned long timestamp) | |
398 | { | |
399 | struct object *obj; | |
400 | ||
401 | if (!is_null_sha1(sha1)) { | |
402 | obj = lookup_object(sha1); | |
403 | if (obj) { | |
404 | if (timestamp && name_objects) | |
405 | add_decoration(fsck_walk_options.object_names, | |
406 | obj, | |
407 | xstrfmt("%s@{%ld}", refname, timestamp)); | |
408 | obj->used = 1; | |
409 | mark_object_reachable(obj); | |
410 | } else { | |
411 | error("%s: invalid reflog entry %s", refname, sha1_to_hex(sha1)); | |
412 | errors_found |= ERROR_REACHABLE; | |
413 | } | |
414 | } | |
415 | } | |
416 | ||
417 | static int fsck_handle_reflog_ent(unsigned char *osha1, unsigned char *nsha1, | |
418 | const char *email, unsigned long timestamp, int tz, | |
419 | const char *message, void *cb_data) | |
420 | { | |
421 | const char *refname = cb_data; | |
422 | ||
423 | if (verbose) | |
424 | fprintf(stderr, "Checking reflog %s->%s\n", | |
425 | sha1_to_hex(osha1), sha1_to_hex(nsha1)); | |
426 | ||
427 | fsck_handle_reflog_sha1(refname, osha1, 0); | |
428 | fsck_handle_reflog_sha1(refname, nsha1, timestamp); | |
429 | return 0; | |
430 | } | |
431 | ||
432 | static int fsck_handle_reflog(const char *logname, const struct object_id *oid, | |
433 | int flag, void *cb_data) | |
434 | { | |
435 | for_each_reflog_ent(logname, fsck_handle_reflog_ent, (void *)logname); | |
436 | return 0; | |
437 | } | |
438 | ||
439 | static int fsck_handle_ref(const char *refname, const struct object_id *oid, | |
440 | int flag, void *cb_data) | |
441 | { | |
442 | struct object *obj; | |
443 | ||
444 | obj = parse_object(oid->hash); | |
445 | if (!obj) { | |
446 | error("%s: invalid sha1 pointer %s", refname, oid_to_hex(oid)); | |
447 | errors_found |= ERROR_REACHABLE; | |
448 | /* We'll continue with the rest despite the error.. */ | |
449 | return 0; | |
450 | } | |
451 | if (obj->type != OBJ_COMMIT && is_branch(refname)) { | |
452 | error("%s: not a commit", refname); | |
453 | errors_found |= ERROR_REFS; | |
454 | } | |
455 | default_refs++; | |
456 | obj->used = 1; | |
457 | if (name_objects) | |
458 | add_decoration(fsck_walk_options.object_names, | |
459 | obj, xstrdup(refname)); | |
460 | mark_object_reachable(obj); | |
461 | ||
462 | return 0; | |
463 | } | |
464 | ||
465 | static void get_default_heads(void) | |
466 | { | |
467 | if (head_points_at && !is_null_oid(&head_oid)) | |
468 | fsck_handle_ref("HEAD", &head_oid, 0, NULL); | |
469 | for_each_rawref(fsck_handle_ref, NULL); | |
470 | if (include_reflogs) | |
471 | for_each_reflog(fsck_handle_reflog, NULL); | |
472 | ||
473 | /* | |
474 | * Not having any default heads isn't really fatal, but | |
475 | * it does mean that "--unreachable" no longer makes any | |
476 | * sense (since in this case everything will obviously | |
477 | * be unreachable by definition. | |
478 | * | |
479 | * Showing dangling objects is valid, though (as those | |
480 | * dangling objects are likely lost heads). | |
481 | * | |
482 | * So we just print a warning about it, and clear the | |
483 | * "show_unreachable" flag. | |
484 | */ | |
485 | if (!default_refs) { | |
486 | fprintf(stderr, "notice: No default references\n"); | |
487 | show_unreachable = 0; | |
488 | } | |
489 | } | |
490 | ||
491 | static int fsck_loose(const unsigned char *sha1, const char *path, void *data) | |
492 | { | |
493 | if (fsck_sha1(sha1)) | |
494 | errors_found |= ERROR_OBJECT; | |
495 | return 0; | |
496 | } | |
497 | ||
498 | static int fsck_cruft(const char *basename, const char *path, void *data) | |
499 | { | |
500 | if (!starts_with(basename, "tmp_obj_")) | |
501 | fprintf(stderr, "bad sha1 file: %s\n", path); | |
502 | return 0; | |
503 | } | |
504 | ||
505 | static int fsck_subdir(int nr, const char *path, void *progress) | |
506 | { | |
507 | display_progress(progress, nr + 1); | |
508 | return 0; | |
509 | } | |
510 | ||
511 | static void fsck_object_dir(const char *path) | |
512 | { | |
513 | struct progress *progress = NULL; | |
514 | ||
515 | if (verbose) | |
516 | fprintf(stderr, "Checking object directory\n"); | |
517 | ||
518 | if (show_progress) | |
519 | progress = start_progress(_("Checking object directories"), 256); | |
520 | ||
521 | for_each_loose_file_in_objdir(path, fsck_loose, fsck_cruft, fsck_subdir, | |
522 | progress); | |
523 | display_progress(progress, 256); | |
524 | stop_progress(&progress); | |
525 | } | |
526 | ||
527 | static int fsck_head_link(void) | |
528 | { | |
529 | int null_is_error = 0; | |
530 | ||
531 | if (verbose) | |
532 | fprintf(stderr, "Checking HEAD link\n"); | |
533 | ||
534 | head_points_at = resolve_ref_unsafe("HEAD", 0, head_oid.hash, NULL); | |
535 | if (!head_points_at) { | |
536 | errors_found |= ERROR_REFS; | |
537 | return error("Invalid HEAD"); | |
538 | } | |
539 | if (!strcmp(head_points_at, "HEAD")) | |
540 | /* detached HEAD */ | |
541 | null_is_error = 1; | |
542 | else if (!starts_with(head_points_at, "refs/heads/")) { | |
543 | errors_found |= ERROR_REFS; | |
544 | return error("HEAD points to something strange (%s)", | |
545 | head_points_at); | |
546 | } | |
547 | if (is_null_oid(&head_oid)) { | |
548 | if (null_is_error) { | |
549 | errors_found |= ERROR_REFS; | |
550 | return error("HEAD: detached HEAD points at nothing"); | |
551 | } | |
552 | fprintf(stderr, "notice: HEAD points to an unborn branch (%s)\n", | |
553 | head_points_at + 11); | |
554 | } | |
555 | return 0; | |
556 | } | |
557 | ||
558 | static int fsck_cache_tree(struct cache_tree *it) | |
559 | { | |
560 | int i; | |
561 | int err = 0; | |
562 | ||
563 | if (verbose) | |
564 | fprintf(stderr, "Checking cache tree\n"); | |
565 | ||
566 | if (0 <= it->entry_count) { | |
567 | struct object *obj = parse_object(it->sha1); | |
568 | if (!obj) { | |
569 | error("%s: invalid sha1 pointer in cache-tree", | |
570 | sha1_to_hex(it->sha1)); | |
571 | errors_found |= ERROR_REFS; | |
572 | return 1; | |
573 | } | |
574 | obj->used = 1; | |
575 | if (name_objects) | |
576 | add_decoration(fsck_walk_options.object_names, | |
577 | obj, xstrdup(":")); | |
578 | mark_object_reachable(obj); | |
579 | if (obj->type != OBJ_TREE) | |
580 | err |= objerror(obj, "non-tree in cache-tree"); | |
581 | } | |
582 | for (i = 0; i < it->subtree_nr; i++) | |
583 | err |= fsck_cache_tree(it->down[i]->cache_tree); | |
584 | return err; | |
585 | } | |
586 | ||
587 | static char const * const fsck_usage[] = { | |
588 | N_("git fsck [<options>] [<object>...]"), | |
589 | NULL | |
590 | }; | |
591 | ||
592 | static struct option fsck_opts[] = { | |
593 | OPT__VERBOSE(&verbose, N_("be verbose")), | |
594 | OPT_BOOL(0, "unreachable", &show_unreachable, N_("show unreachable objects")), | |
595 | OPT_BOOL(0, "dangling", &show_dangling, N_("show dangling objects")), | |
596 | OPT_BOOL(0, "tags", &show_tags, N_("report tags")), | |
597 | OPT_BOOL(0, "root", &show_root, N_("report root nodes")), | |
598 | OPT_BOOL(0, "cache", &keep_cache_objects, N_("make index objects head nodes")), | |
599 | OPT_BOOL(0, "reflogs", &include_reflogs, N_("make reflogs head nodes (default)")), | |
600 | OPT_BOOL(0, "full", &check_full, N_("also consider packs and alternate objects")), | |
601 | OPT_BOOL(0, "connectivity-only", &connectivity_only, N_("check only connectivity")), | |
602 | OPT_BOOL(0, "strict", &check_strict, N_("enable more strict checking")), | |
603 | OPT_BOOL(0, "lost-found", &write_lost_and_found, | |
604 | N_("write dangling objects in .git/lost-found")), | |
605 | OPT_BOOL(0, "progress", &show_progress, N_("show progress")), | |
606 | OPT_BOOL(0, "name-objects", &name_objects, N_("show verbose names for reachable objects")), | |
607 | OPT_END(), | |
608 | }; | |
609 | ||
610 | int cmd_fsck(int argc, const char **argv, const char *prefix) | |
611 | { | |
612 | int i, heads; | |
613 | struct alternate_object_database *alt; | |
614 | ||
615 | errors_found = 0; | |
616 | check_replace_refs = 0; | |
617 | ||
618 | argc = parse_options(argc, argv, prefix, fsck_opts, fsck_usage, 0); | |
619 | ||
620 | fsck_walk_options.walk = mark_object; | |
621 | fsck_obj_options.walk = mark_used; | |
622 | fsck_obj_options.error_func = fsck_error_func; | |
623 | if (check_strict) | |
624 | fsck_obj_options.strict = 1; | |
625 | ||
626 | if (show_progress == -1) | |
627 | show_progress = isatty(2); | |
628 | if (verbose) | |
629 | show_progress = 0; | |
630 | ||
631 | if (write_lost_and_found) { | |
632 | check_full = 1; | |
633 | include_reflogs = 0; | |
634 | } | |
635 | ||
636 | if (name_objects) | |
637 | fsck_walk_options.object_names = | |
638 | xcalloc(1, sizeof(struct decoration)); | |
639 | ||
640 | git_config(fsck_config, NULL); | |
641 | ||
642 | fsck_head_link(); | |
643 | if (!connectivity_only) { | |
644 | fsck_object_dir(get_object_directory()); | |
645 | ||
646 | prepare_alt_odb(); | |
647 | for (alt = alt_odb_list; alt; alt = alt->next) | |
648 | fsck_object_dir(alt->path); | |
649 | } | |
650 | ||
651 | if (check_full) { | |
652 | struct packed_git *p; | |
653 | uint32_t total = 0, count = 0; | |
654 | struct progress *progress = NULL; | |
655 | ||
656 | prepare_packed_git(); | |
657 | ||
658 | if (show_progress) { | |
659 | for (p = packed_git; p; p = p->next) { | |
660 | if (open_pack_index(p)) | |
661 | continue; | |
662 | total += p->num_objects; | |
663 | } | |
664 | ||
665 | progress = start_progress(_("Checking objects"), total); | |
666 | } | |
667 | for (p = packed_git; p; p = p->next) { | |
668 | /* verify gives error messages itself */ | |
669 | if (verify_pack(p, fsck_obj_buffer, | |
670 | progress, count)) | |
671 | errors_found |= ERROR_PACK; | |
672 | count += p->num_objects; | |
673 | } | |
674 | stop_progress(&progress); | |
675 | } | |
676 | ||
677 | heads = 0; | |
678 | for (i = 0; i < argc; i++) { | |
679 | const char *arg = argv[i]; | |
680 | unsigned char sha1[20]; | |
681 | if (!get_sha1(arg, sha1)) { | |
682 | struct object *obj = lookup_object(sha1); | |
683 | ||
684 | /* Error is printed by lookup_object(). */ | |
685 | if (!obj) | |
686 | continue; | |
687 | ||
688 | obj->used = 1; | |
689 | if (name_objects) | |
690 | add_decoration(fsck_walk_options.object_names, | |
691 | obj, xstrdup(arg)); | |
692 | mark_object_reachable(obj); | |
693 | heads++; | |
694 | continue; | |
695 | } | |
696 | error("invalid parameter: expected sha1, got '%s'", arg); | |
697 | } | |
698 | ||
699 | /* | |
700 | * If we've not been given any explicit head information, do the | |
701 | * default ones from .git/refs. We also consider the index file | |
702 | * in this case (ie this implies --cache). | |
703 | */ | |
704 | if (!heads) { | |
705 | get_default_heads(); | |
706 | keep_cache_objects = 1; | |
707 | } | |
708 | ||
709 | if (keep_cache_objects) { | |
710 | read_cache(); | |
711 | for (i = 0; i < active_nr; i++) { | |
712 | unsigned int mode; | |
713 | struct blob *blob; | |
714 | struct object *obj; | |
715 | ||
716 | mode = active_cache[i]->ce_mode; | |
717 | if (S_ISGITLINK(mode)) | |
718 | continue; | |
719 | blob = lookup_blob(active_cache[i]->oid.hash); | |
720 | if (!blob) | |
721 | continue; | |
722 | obj = &blob->object; | |
723 | obj->used = 1; | |
724 | if (name_objects) | |
725 | add_decoration(fsck_walk_options.object_names, | |
726 | obj, | |
727 | xstrfmt(":%s", active_cache[i]->name)); | |
728 | mark_object_reachable(obj); | |
729 | } | |
730 | if (active_cache_tree) | |
731 | fsck_cache_tree(active_cache_tree); | |
732 | } | |
733 | ||
734 | check_connectivity(); | |
735 | return errors_found; | |
736 | } |