fsck: use for_each_loose_file_in_objdir
[git/git.git] / builtin / fsck.c
CommitLineData
baffc0e7 1#include "builtin.h"
4b182421 2#include "cache.h"
ff5ebe39
DB
3#include "commit.h"
4#include "tree.h"
5#include "blob.h"
c418eda4 6#include "tag.h"
944d8589 7#include "refs.h"
f9253394 8#include "pack.h"
53dc3f3e 9#include "cache-tree.h"
e9a95bef 10#include "tree-walk.h"
271b8d25 11#include "fsck.h"
5ac0a206 12#include "parse-options.h"
8ca12c0d 13#include "dir.h"
1e49f22f 14#include "progress.h"
6f7f3beb 15#include "streaming.h"
ff5ebe39
DB
16
17#define REACHABLE 0x0001
2d9c58c6 18#define SEEN 0x0002
6e454b9a 19#define HAS_OBJ 0x0004
d9839e03 20
96f1e58f
DR
21static int show_root;
22static int show_tags;
23static int show_unreachable;
566842f6 24static int include_reflogs = 1;
f29cd393 25static int check_full = 1;
02976bf8 26static int connectivity_only;
96f1e58f
DR
27static int check_strict;
28static int keep_cache_objects;
22410549
JS
29static struct fsck_options fsck_walk_options = FSCK_OPTIONS_DEFAULT;
30static struct fsck_options fsck_obj_options = FSCK_OPTIONS_DEFAULT;
635b99a0 31static struct object_id head_oid;
469e2ebf 32static const char *head_points_at;
e2b4f635 33static int errors_found;
68f6c019 34static int write_lost_and_found;
20f1eb6b 35static int verbose;
1e49f22f 36static int show_progress = -1;
c6a13b2c 37static int show_dangling = 1;
e2b4f635
JH
38#define ERROR_OBJECT 01
39#define ERROR_REACHABLE 02
a3ed7552 40#define ERROR_PACK 04
d9839e03 41
2becf00f 42static int fsck_config(const char *var, const char *value, void *cb)
f1f0d088 43{
1335f732
JS
44 if (strcmp(var, "fsck.skiplist") == 0) {
45 const char *path;
46 struct strbuf sb = STRBUF_INIT;
47
48 if (git_config_pathname(&path, var, value))
49 return 1;
50 strbuf_addf(&sb, "skiplist=%s", path);
51 free((char *)path);
52 fsck_set_msg_types(&fsck_obj_options, sb.buf);
53 strbuf_release(&sb);
54 return 0;
55 }
56
2becf00f
JS
57 if (skip_prefix(var, "fsck.", &var)) {
58 fsck_set_msg_type(&fsck_obj_options, var, value);
59 return 0;
60 }
61
62 return git_default_config(var, value, cb);
63}
64
c99ba492
JS
65static void objreport(struct object *obj, const char *msg_type,
66 const char *err)
f1f0d088 67{
c99ba492
JS
68 fprintf(stderr, "%s in %s %s: %s\n",
69 msg_type, typename(obj->type), sha1_to_hex(obj->sha1), err);
f1f0d088
PB
70}
71
c99ba492 72static int objerror(struct object *obj, const char *err)
f1f0d088 73{
e2b4f635 74 errors_found |= ERROR_OBJECT;
c99ba492 75 objreport(obj, "error", err);
f1f0d088
PB
76 return -1;
77}
78
c99ba492 79static int fsck_error_func(struct object *obj, int type, const char *message)
f1f0d088 80{
c99ba492 81 objreport(obj, (type == FSCK_WARN) ? "warning" : "error", message);
ba002f3b 82 return (type == FSCK_WARN) ? 0 : 1;
f1f0d088
PB
83}
84
04d39759
LT
85static struct object_array pending;
86
22410549 87static int mark_object(struct object *obj, int type, void *data, struct fsck_options *options)
271b8d25 88{
271b8d25 89 struct object *parent = data;
271b8d25 90
a1cdc251
JH
91 /*
92 * The only case data is NULL or type is OBJ_ANY is when
93 * mark_object_reachable() calls us. All the callers of
94 * that function has non-NULL obj hence ...
95 */
271b8d25 96 if (!obj) {
a1cdc251 97 /* ... these references to parent->fld are safe here */
271b8d25
MK
98 printf("broken link from %7s %s\n",
99 typename(parent->type), sha1_to_hex(parent->sha1));
100 printf("broken link from %7s %s\n",
101 (type == OBJ_ANY ? "unknown" : typename(type)), "unknown");
102 errors_found |= ERROR_REACHABLE;
103 return 1;
104 }
105
106 if (type != OBJ_ANY && obj->type != type)
a1cdc251 107 /* ... and the reference to parent is safe here */
271b8d25
MK
108 objerror(parent, "wrong object type in link");
109
110 if (obj->flags & REACHABLE)
111 return 0;
112 obj->flags |= REACHABLE;
6e454b9a 113 if (!(obj->flags & HAS_OBJ)) {
271b8d25
MK
114 if (parent && !has_sha1_file(obj->sha1)) {
115 printf("broken link from %7s %s\n",
116 typename(parent->type), sha1_to_hex(parent->sha1));
117 printf(" to %7s %s\n",
118 typename(obj->type), sha1_to_hex(obj->sha1));
119 errors_found |= ERROR_REACHABLE;
120 }
121 return 1;
122 }
123
16aa3bfc 124 add_object_array(obj, NULL, &pending);
04d39759
LT
125 return 0;
126}
127
128static void mark_object_reachable(struct object *obj)
129{
22410549 130 mark_object(obj, OBJ_ANY, NULL, NULL);
04d39759
LT
131}
132
a1cdc251 133static int traverse_one_object(struct object *obj)
04d39759
LT
134{
135 int result;
136 struct tree *tree = NULL;
137
271b8d25 138 if (obj->type == OBJ_TREE) {
271b8d25
MK
139 tree = (struct tree *)obj;
140 if (parse_tree(tree) < 0)
141 return 1; /* error already displayed */
142 }
22410549 143 result = fsck_walk(obj, obj, &fsck_walk_options);
6e454b9a
JK
144 if (tree)
145 free_tree_buffer(tree);
271b8d25
MK
146 return result;
147}
148
04d39759 149static int traverse_reachable(void)
271b8d25 150{
1e49f22f
NTND
151 struct progress *progress = NULL;
152 unsigned int nr = 0;
04d39759 153 int result = 0;
1e49f22f 154 if (show_progress)
754dbc43 155 progress = start_progress_delay(_("Checking connectivity"), 0, 0, 2);
04d39759
LT
156 while (pending.nr) {
157 struct object_array_entry *entry;
c0aa335c 158 struct object *obj;
04d39759
LT
159
160 entry = pending.objects + --pending.nr;
161 obj = entry->item;
a1cdc251 162 result |= traverse_one_object(obj);
1e49f22f 163 display_progress(progress, ++nr);
04d39759 164 }
1e49f22f 165 stop_progress(&progress);
04d39759 166 return !!result;
271b8d25
MK
167}
168
22410549 169static int mark_used(struct object *obj, int type, void *data, struct fsck_options *options)
271b8d25
MK
170{
171 if (!obj)
172 return 1;
173 obj->used = 1;
174 return 0;
f1f0d088
PB
175}
176
18af29f2
LT
177/*
178 * Check a single reachable object
179 */
180static void check_reachable_object(struct object *obj)
181{
18af29f2
LT
182 /*
183 * We obviously want the object to be parsed,
184 * except if it was in a pack-file and we didn't
185 * do a full fsck
186 */
6e454b9a 187 if (!(obj->flags & HAS_OBJ)) {
cd673c1f 188 if (has_sha1_pack(obj->sha1))
18af29f2 189 return; /* it is in pack - forget about it */
02976bf8
JS
190 if (connectivity_only && has_sha1_file(obj->sha1))
191 return;
18af29f2 192 printf("missing %s %s\n", typename(obj->type), sha1_to_hex(obj->sha1));
e2b4f635 193 errors_found |= ERROR_REACHABLE;
18af29f2
LT
194 return;
195 }
18af29f2
LT
196}
197
198/*
199 * Check a single unreachable object
200 */
201static void check_unreachable_object(struct object *obj)
202{
203 /*
204 * Missing unreachable object? Ignore it. It's not like
205 * we miss it (since it can't be reached), nor do we want
206 * to complain about it being unreachable (since it does
207 * not exist).
208 */
209 if (!obj->parsed)
210 return;
211
212 /*
213 * Unreachable object that exists? Show it if asked to,
214 * since this is something that is prunable.
215 */
216 if (show_unreachable) {
217 printf("unreachable %s %s\n", typename(obj->type), sha1_to_hex(obj->sha1));
218 return;
219 }
220
221 /*
222 * "!used" means that nothing at all points to it, including
3dff5379 223 * other unreachable objects. In other words, it's the "tip"
18af29f2
LT
224 * of some set of unreachable objects, usually a commit that
225 * got dropped.
226 *
227 * Such starting points are more interesting than some random
228 * set of unreachable objects, so we show them even if the user
229 * hasn't asked for _all_ unreachable objects. If you have
230 * deleted a branch by mistake, this is a prime candidate to
231 * start looking at, for example.
232 */
233 if (!obj->used) {
c6a13b2c
JH
234 if (show_dangling)
235 printf("dangling %s %s\n", typename(obj->type),
236 sha1_to_hex(obj->sha1));
68f6c019 237 if (write_lost_and_found) {
fcd12db6 238 char *filename = git_pathdup("lost-found/%s/%s",
68f6c019
JS
239 obj->type == OBJ_COMMIT ? "commit" : "other",
240 sha1_to_hex(obj->sha1));
241 FILE *f;
242
dcf69262 243 if (safe_create_leading_directories_const(filename)) {
68f6c019 244 error("Could not create lost-found");
fcd12db6 245 free(filename);
68f6c019
JS
246 return;
247 }
248 if (!(f = fopen(filename, "w")))
0721c314 249 die_errno("Could not open '%s'", filename);
16a7fcfe 250 if (obj->type == OBJ_BLOB) {
6f7f3beb 251 if (stream_blob_to_fd(fileno(f), obj->sha1, NULL, 1))
eb726f2d 252 die_errno("Could not write '%s'", filename);
16a7fcfe
JS
253 } else
254 fprintf(f, "%s\n", sha1_to_hex(obj->sha1));
47d32af2 255 if (fclose(f))
d824cbba
TR
256 die_errno("Could not finish '%s'",
257 filename);
fcd12db6 258 free(filename);
68f6c019 259 }
18af29f2
LT
260 return;
261 }
262
263 /*
264 * Otherwise? It's there, it's unreachable, and some other unreachable
265 * object points to it. Ignore it - it's not interesting, and we showed
266 * all the interesting cases above.
267 */
268}
269
270static void check_object(struct object *obj)
271{
20f1eb6b
JS
272 if (verbose)
273 fprintf(stderr, "Checking %s\n", sha1_to_hex(obj->sha1));
274
18af29f2
LT
275 if (obj->flags & REACHABLE)
276 check_reachable_object(obj);
277 else
278 check_unreachable_object(obj);
279}
f1f0d088 280
8ba0bbb2
LT
281static void check_connectivity(void)
282{
fc046a75 283 int i, max;
8ba0bbb2 284
04d39759
LT
285 /* Traverse the pending reachable objects */
286 traverse_reachable();
287
8ba0bbb2 288 /* Look up all the requirements, warn about missing objects.. */
fc046a75 289 max = get_max_object_index();
20f1eb6b
JS
290 if (verbose)
291 fprintf(stderr, "Checking connectivity (%d objects)\n", max);
292
fc046a75 293 for (i = 0; i < max; i++) {
fc046a75 294 struct object *obj = get_indexed_object(i);
8ba0bbb2 295
18af29f2
LT
296 if (obj)
297 check_object(obj);
8ba0bbb2
LT
298 }
299}
300
c9486eb0 301static int fsck_obj(struct object *obj)
85003492 302{
ba002f3b 303 if (obj->flags & SEEN)
85003492 304 return 0;
ba002f3b 305 obj->flags |= SEEN;
85003492 306
20f1eb6b 307 if (verbose)
ba002f3b
MK
308 fprintf(stderr, "Checking %s %s\n",
309 typename(obj->type), sha1_to_hex(obj->sha1));
42ea9cb2 310
22410549 311 if (fsck_walk(obj, NULL, &fsck_obj_options))
ba002f3b 312 objerror(obj, "broken links");
22410549 313 if (fsck_object(obj, NULL, 0, &fsck_obj_options))
ba002f3b 314 return -1;
85003492 315
ba002f3b
MK
316 if (obj->type == OBJ_TREE) {
317 struct tree *item = (struct tree *) obj;
85003492 318
6e454b9a 319 free_tree_buffer(item);
1ea34e36 320 }
1ea34e36 321
ba002f3b
MK
322 if (obj->type == OBJ_COMMIT) {
323 struct commit *commit = (struct commit *) obj;
de2eb7f6 324
0fb370da 325 free_commit_buffer(commit);
4728b861 326
ba002f3b
MK
327 if (!commit->parents && show_root)
328 printf("root %s\n", sha1_to_hex(commit->object.sha1));
329 }
92d4c85d 330
ba002f3b
MK
331 if (obj->type == OBJ_TAG) {
332 struct tag *tag = (struct tag *) obj;
20f1eb6b 333
ba002f3b
MK
334 if (show_tags && tag->tagged) {
335 printf("tagged %s %s", typename(tag->tagged->type), sha1_to_hex(tag->tagged->sha1));
336 printf(" (%s) in %s\n", tag->tag, sha1_to_hex(tag->object.sha1));
337 }
92d4c85d 338 }
889262ea 339
ff5ebe39 340 return 0;
20222118
LT
341}
342
c9486eb0
NTND
343static int fsck_sha1(const unsigned char *sha1)
344{
345 struct object *obj = parse_object(sha1);
346 if (!obj) {
347 errors_found |= ERROR_OBJECT;
348 return error("%s: object corrupt or missing",
349 sha1_to_hex(sha1));
350 }
6e454b9a 351 obj->flags |= HAS_OBJ;
c9486eb0
NTND
352 return fsck_obj(obj);
353}
354
355static int fsck_obj_buffer(const unsigned char *sha1, enum object_type type,
356 unsigned long size, void *buffer, int *eaten)
357{
358 struct object *obj;
359 obj = parse_object_buffer(sha1, type, size, buffer, eaten);
360 if (!obj) {
361 errors_found |= ERROR_OBJECT;
362 return error("%s: object corrupt or missing", sha1_to_hex(sha1));
363 }
6e454b9a 364 obj->flags = HAS_OBJ;
c9486eb0
NTND
365 return fsck_obj(obj);
366}
367
96f1e58f 368static int default_refs;
944d8589 369
19bf6c9b 370static void fsck_handle_reflog_sha1(const char *refname, unsigned char *sha1)
55dd5526
JH
371{
372 struct object *obj;
373
d66ae59b
MH
374 if (!is_null_sha1(sha1)) {
375 obj = lookup_object(sha1);
55dd5526
JH
376 if (obj) {
377 obj->used = 1;
271b8d25 378 mark_object_reachable(obj);
19bf6c9b
MH
379 } else {
380 error("%s: invalid reflog entry %s", refname, sha1_to_hex(sha1));
381 errors_found |= ERROR_REACHABLE;
55dd5526
JH
382 }
383 }
d66ae59b
MH
384}
385
883d60fa
JS
386static int fsck_handle_reflog_ent(unsigned char *osha1, unsigned char *nsha1,
387 const char *email, unsigned long timestamp, int tz,
388 const char *message, void *cb_data)
55dd5526 389{
19bf6c9b 390 const char *refname = cb_data;
55dd5526 391
20f1eb6b
JS
392 if (verbose)
393 fprintf(stderr, "Checking reflog %s->%s\n",
394 sha1_to_hex(osha1), sha1_to_hex(nsha1));
395
19bf6c9b
MH
396 fsck_handle_reflog_sha1(refname, osha1);
397 fsck_handle_reflog_sha1(refname, nsha1);
55dd5526
JH
398 return 0;
399}
400
635b99a0
MH
401static int fsck_handle_reflog(const char *logname, const struct object_id *oid,
402 int flag, void *cb_data)
eb8381c8 403{
19bf6c9b 404 for_each_reflog_ent(logname, fsck_handle_reflog_ent, (void *)logname);
eb8381c8
NP
405 return 0;
406}
407
635b99a0
MH
408static int fsck_handle_ref(const char *refname, const struct object_id *oid,
409 int flag, void *cb_data)
1024932f 410{
1024932f
LT
411 struct object *obj;
412
635b99a0 413 obj = parse_object(oid->hash);
8a498a05 414 if (!obj) {
635b99a0 415 error("%s: invalid sha1 pointer %s", refname, oid_to_hex(oid));
30d1038d 416 errors_found |= ERROR_REACHABLE;
944d8589
LT
417 /* We'll continue with the rest despite the error.. */
418 return 0;
8a498a05 419 }
6232f62b
LT
420 if (obj->type != OBJ_COMMIT && is_branch(refname))
421 error("%s: not a commit", refname);
944d8589 422 default_refs++;
1024932f 423 obj->used = 1;
271b8d25 424 mark_object_reachable(obj);
55dd5526 425
7c4d07c7 426 return 0;
1024932f
LT
427}
428
1024932f
LT
429static void get_default_heads(void)
430{
635b99a0
MH
431 if (head_points_at && !is_null_oid(&head_oid))
432 fsck_handle_ref("HEAD", &head_oid, 0, NULL);
433 for_each_rawref(fsck_handle_ref, NULL);
566842f6 434 if (include_reflogs)
635b99a0 435 for_each_reflog(fsck_handle_reflog, NULL);
071fa89e
LT
436
437 /*
438 * Not having any default heads isn't really fatal, but
439 * it does mean that "--unreachable" no longer makes any
440 * sense (since in this case everything will obviously
441 * be unreachable by definition.
442 *
443 * Showing dangling objects is valid, though (as those
444 * dangling objects are likely lost heads).
445 *
446 * So we just print a warning about it, and clear the
447 * "show_unreachable" flag.
448 */
449 if (!default_refs) {
8eb2d0be 450 fprintf(stderr, "notice: No default references\n");
071fa89e
LT
451 show_unreachable = 0;
452 }
1024932f
LT
453}
454
f0766bf9
JK
455static int fsck_loose(const unsigned char *sha1, const char *path, void *data)
456{
457 if (fsck_sha1(sha1))
458 errors_found |= ERROR_OBJECT;
459 return 0;
460}
461
462static int fsck_cruft(const char *basename, const char *path, void *data)
463{
464 if (!starts_with(basename, "tmp_obj_"))
465 fprintf(stderr, "bad sha1 file: %s\n", path);
466 return 0;
467}
468
469static int fsck_subdir(int nr, const char *path, void *progress)
470{
471 display_progress(progress, nr + 1);
472 return 0;
473}
474
8a498a05
JH
475static void fsck_object_dir(const char *path)
476{
1e49f22f 477 struct progress *progress = NULL;
20f1eb6b
JS
478
479 if (verbose)
480 fprintf(stderr, "Checking object directory\n");
481
1e49f22f 482 if (show_progress)
754dbc43 483 progress = start_progress(_("Checking object directories"), 256);
f0766bf9
JK
484
485 for_each_loose_file_in_objdir(path, fsck_loose, fsck_cruft, fsck_subdir,
486 progress);
487 display_progress(progress, 256);
1e49f22f 488 stop_progress(&progress);
8a498a05
JH
489}
490
c3330383
LT
491static int fsck_head_link(void)
492{
8da19775 493 int flag;
8eb2d0be 494 int null_is_error = 0;
8eb2d0be 495
20f1eb6b
JS
496 if (verbose)
497 fprintf(stderr, "Checking HEAD link\n");
498
635b99a0 499 head_points_at = resolve_ref_unsafe("HEAD", 0, head_oid.hash, &flag);
8eb2d0be
JH
500 if (!head_points_at)
501 return error("Invalid HEAD");
502 if (!strcmp(head_points_at, "HEAD"))
503 /* detached HEAD */
504 null_is_error = 1;
59556548 505 else if (!starts_with(head_points_at, "refs/heads/"))
8098a178 506 return error("HEAD points to something strange (%s)",
5b10b091 507 head_points_at);
635b99a0 508 if (is_null_oid(&head_oid)) {
8eb2d0be
JH
509 if (null_is_error)
510 return error("HEAD: detached HEAD points at nothing");
511 fprintf(stderr, "notice: HEAD points to an unborn branch (%s)\n",
512 head_points_at + 11);
513 }
c3330383
LT
514 return 0;
515}
516
53dc3f3e
JH
517static int fsck_cache_tree(struct cache_tree *it)
518{
519 int i;
520 int err = 0;
521
20f1eb6b
JS
522 if (verbose)
523 fprintf(stderr, "Checking cache tree\n");
524
53dc3f3e
JH
525 if (0 <= it->entry_count) {
526 struct object *obj = parse_object(it->sha1);
6d60bbef
JH
527 if (!obj) {
528 error("%s: invalid sha1 pointer in cache-tree",
529 sha1_to_hex(it->sha1));
530 return 1;
531 }
cdc08b33 532 obj->used = 1;
a1cdc251 533 mark_object_reachable(obj);
1974632c 534 if (obj->type != OBJ_TREE)
53dc3f3e
JH
535 err |= objerror(obj, "non-tree in cache-tree");
536 }
537 for (i = 0; i < it->subtree_nr; i++)
538 err |= fsck_cache_tree(it->down[i]->cache_tree);
539 return err;
540}
541
5ac0a206 542static char const * const fsck_usage[] = {
9c9b4f2f 543 N_("git fsck [<options>] [<object>...]"),
5ac0a206
PH
544 NULL
545};
546
547static struct option fsck_opts[] = {
cf8fe315 548 OPT__VERBOSE(&verbose, N_("be verbose")),
d5d09d47 549 OPT_BOOL(0, "unreachable", &show_unreachable, N_("show unreachable objects")),
cf8fe315 550 OPT_BOOL(0, "dangling", &show_dangling, N_("show dangling objects")),
d5d09d47
SB
551 OPT_BOOL(0, "tags", &show_tags, N_("report tags")),
552 OPT_BOOL(0, "root", &show_root, N_("report root nodes")),
553 OPT_BOOL(0, "cache", &keep_cache_objects, N_("make index objects head nodes")),
554 OPT_BOOL(0, "reflogs", &include_reflogs, N_("make reflogs head nodes (default)")),
555 OPT_BOOL(0, "full", &check_full, N_("also consider packs and alternate objects")),
02976bf8 556 OPT_BOOL(0, "connectivity-only", &connectivity_only, N_("check only connectivity")),
d5d09d47
SB
557 OPT_BOOL(0, "strict", &check_strict, N_("enable more strict checking")),
558 OPT_BOOL(0, "lost-found", &write_lost_and_found,
cf8fe315
NTND
559 N_("write dangling objects in .git/lost-found")),
560 OPT_BOOL(0, "progress", &show_progress, N_("show progress")),
5ac0a206
PH
561 OPT_END(),
562};
e2b4f635 563
baffc0e7 564int cmd_fsck(int argc, const char **argv, const char *prefix)
20222118 565{
bcee6fd8 566 int i, heads;
e15ef669 567 struct alternate_object_database *alt;
20222118 568
e2b4f635 569 errors_found = 0;
afc711b8 570 check_replace_refs = 0;
61e2b015 571
37782920 572 argc = parse_options(argc, argv, prefix, fsck_opts, fsck_usage, 0);
1e49f22f 573
22410549
JS
574 fsck_walk_options.walk = mark_object;
575 fsck_obj_options.walk = mark_used;
576 fsck_obj_options.error_func = fsck_error_func;
577 if (check_strict)
578 fsck_obj_options.strict = 1;
579
1e49f22f
NTND
580 if (show_progress == -1)
581 show_progress = isatty(2);
582 if (verbose)
583 show_progress = 0;
584
5ac0a206
PH
585 if (write_lost_and_found) {
586 check_full = 1;
587 include_reflogs = 0;
889262ea
LT
588 }
589
2becf00f
JS
590 git_config(fsck_config, NULL);
591
c3330383 592 fsck_head_link();
fbe85e73 593 if (!connectivity_only) {
02976bf8 594 fsck_object_dir(get_object_directory());
e15ef669 595
fbe85e73
JK
596 prepare_alt_odb();
597 for (alt = alt_odb_list; alt; alt = alt->next) {
c1fd0809
JK
598 /* directory name, minus trailing slash */
599 size_t namelen = alt->name - alt->base - 1;
600 struct strbuf name = STRBUF_INIT;
601 strbuf_add(&name, alt->base, namelen);
602 fsck_object_dir(name.buf);
603 strbuf_release(&name);
fbe85e73 604 }
e15ef669
JH
605 }
606
8a498a05 607 if (check_full) {
8a498a05 608 struct packed_git *p;
1e49f22f
NTND
609 uint32_t total = 0, count = 0;
610 struct progress *progress = NULL;
e15ef669 611
8a498a05 612 prepare_packed_git();
1e49f22f
NTND
613
614 if (show_progress) {
615 for (p = packed_git; p; p = p->next) {
616 if (open_pack_index(p))
617 continue;
618 total += p->num_objects;
619 }
620
754dbc43 621 progress = start_progress(_("Checking objects"), total);
1e49f22f
NTND
622 }
623 for (p = packed_git; p; p = p->next) {
f9253394 624 /* verify gives error messages itself */
1e49f22f
NTND
625 if (verify_pack(p, fsck_obj_buffer,
626 progress, count))
a3ed7552 627 errors_found |= ERROR_PACK;
1e49f22f
NTND
628 count += p->num_objects;
629 }
630 stop_progress(&progress);
bcee6fd8
LT
631 }
632
633 heads = 0;
3aed2fda 634 for (i = 0; i < argc; i++) {
a6080a0a 635 const char *arg = argv[i];
469e2ebf
JH
636 unsigned char sha1[20];
637 if (!get_sha1(arg, sha1)) {
638 struct object *obj = lookup_object(sha1);
e1a1388d 639
770896e5
LT
640 /* Error is printed by lookup_object(). */
641 if (!obj)
e1a1388d
JF
642 continue;
643
ff5ebe39 644 obj->used = 1;
271b8d25 645 mark_object_reachable(obj);
bcee6fd8 646 heads++;
d9839e03
LT
647 continue;
648 }
f1f0d088 649 error("invalid parameter: expected sha1, got '%s'", arg);
d9839e03 650 }
d9839e03 651
1024932f 652 /*
d1af002d 653 * If we've not been given any explicit head information, do the
e7bd907d
LT
654 * default ones from .git/refs. We also consider the index file
655 * in this case (ie this implies --cache).
1024932f 656 */
e7bd907d 657 if (!heads) {
1024932f
LT
658 get_default_heads();
659 keep_cache_objects = 1;
660 }
661
ae7c0c92 662 if (keep_cache_objects) {
ae7c0c92
JH
663 read_cache();
664 for (i = 0; i < active_nr; i++) {
8d9721c8
LT
665 unsigned int mode;
666 struct blob *blob;
ae7c0c92 667 struct object *obj;
8d9721c8 668
7a51ed66 669 mode = active_cache[i]->ce_mode;
302b9282 670 if (S_ISGITLINK(mode))
8d9721c8
LT
671 continue;
672 blob = lookup_blob(active_cache[i]->sha1);
ae7c0c92
JH
673 if (!blob)
674 continue;
675 obj = &blob->object;
676 obj->used = 1;
271b8d25 677 mark_object_reachable(obj);
ae7c0c92 678 }
53dc3f3e
JH
679 if (active_cache_tree)
680 fsck_cache_tree(active_cache_tree);
ae7c0c92
JH
681 }
682
8ba0bbb2 683 check_connectivity();
e2b4f635 684 return errors_found;
20222118 685}