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