3 #include "repository.h"
11 #include "cache-tree.h"
12 #include "tree-walk.h"
14 #include "parse-options.h"
17 #include "streaming.h"
20 #include "object-store.h"
21 #include "run-command.h"
24 #define REACHABLE 0x0001
26 #define HAS_OBJ 0x0004
27 /* This flag is set if something points to this object. */
32 static int show_unreachable
;
33 static int include_reflogs
= 1;
34 static int check_full
= 1;
35 static int connectivity_only
;
36 static int check_strict
;
37 static int keep_cache_objects
;
38 static struct fsck_options fsck_walk_options
= FSCK_OPTIONS_DEFAULT
;
39 static struct fsck_options fsck_obj_options
= FSCK_OPTIONS_DEFAULT
;
40 static int errors_found
;
41 static int write_lost_and_found
;
43 static int show_progress
= -1;
44 static int show_dangling
= 1;
45 static int name_objects
;
46 #define ERROR_OBJECT 01
47 #define ERROR_REACHABLE 02
49 #define ERROR_REFS 010
50 #define ERROR_COMMIT_GRAPH 020
52 static const char *describe_object(struct object
*obj
)
54 static struct strbuf buf
= STRBUF_INIT
;
55 char *name
= name_objects
?
56 lookup_decoration(fsck_walk_options
.object_names
, obj
) : NULL
;
59 strbuf_addstr(&buf
, oid_to_hex(&obj
->oid
));
61 strbuf_addf(&buf
, " (%s)", name
);
66 static const char *printable_type(struct object
*obj
)
70 if (obj
->type
== OBJ_NONE
) {
71 enum object_type type
= oid_object_info(the_repository
,
74 object_as_type(the_repository
, obj
, type
, 0);
77 ret
= type_name(obj
->type
);
84 static int fsck_config(const char *var
, const char *value
, void *cb
)
86 if (strcmp(var
, "fsck.skiplist") == 0) {
88 struct strbuf sb
= STRBUF_INIT
;
90 if (git_config_pathname(&path
, var
, value
))
92 strbuf_addf(&sb
, "skiplist=%s", path
);
94 fsck_set_msg_types(&fsck_obj_options
, sb
.buf
);
99 if (skip_prefix(var
, "fsck.", &var
)) {
100 fsck_set_msg_type(&fsck_obj_options
, var
, value
);
104 return git_default_config(var
, value
, cb
);
107 static void objreport(struct object
*obj
, const char *msg_type
,
110 fprintf(stderr
, "%s in %s %s: %s\n",
111 msg_type
, printable_type(obj
), describe_object(obj
), err
);
114 static int objerror(struct object
*obj
, const char *err
)
116 errors_found
|= ERROR_OBJECT
;
117 objreport(obj
, "error", err
);
121 static int fsck_error_func(struct fsck_options
*o
,
122 struct object
*obj
, int type
, const char *message
)
124 objreport(obj
, (type
== FSCK_WARN
) ? "warning" : "error", message
);
125 return (type
== FSCK_WARN
) ? 0 : 1;
128 static struct object_array pending
;
130 static int mark_object(struct object
*obj
, int type
, void *data
, struct fsck_options
*options
)
132 struct object
*parent
= data
;
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 ...
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
;
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");
153 if (obj
->flags
& REACHABLE
)
155 obj
->flags
|= REACHABLE
;
157 if (is_promisor_object(&obj
->oid
))
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").
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
;
176 add_object_array(obj
, NULL
, &pending
);
180 static void mark_object_reachable(struct object
*obj
)
182 mark_object(obj
, OBJ_ANY
, NULL
, NULL
);
185 static int traverse_one_object(struct object
*obj
)
187 int result
= fsck_walk(obj
, obj
, &fsck_walk_options
);
189 if (obj
->type
== OBJ_TREE
) {
190 struct tree
*tree
= (struct tree
*)obj
;
191 free_tree_buffer(tree
);
196 static int traverse_reachable(void)
198 struct progress
*progress
= NULL
;
202 progress
= start_delayed_progress(_("Checking connectivity"), 0);
204 result
|= traverse_one_object(object_array_pop(&pending
));
205 display_progress(progress
, ++nr
);
207 stop_progress(&progress
);
211 static int mark_used(struct object
*obj
, int type
, void *data
, struct fsck_options
*options
)
220 * Check a single reachable object
222 static void check_reachable_object(struct object
*obj
)
225 * We obviously want the object to be parsed,
226 * except if it was in a pack-file and we didn't
229 if (!(obj
->flags
& HAS_OBJ
)) {
230 if (is_promisor_object(&obj
->oid
))
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
;
242 * Check a single unreachable object
244 static void check_unreachable_object(struct object
*obj
)
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
252 if (!(obj
->flags
& HAS_OBJ
))
256 * Unreachable object that exists? Show it if asked to,
257 * since this is something that is prunable.
259 if (show_unreachable
) {
260 printf("unreachable %s %s\n", printable_type(obj
),
261 describe_object(obj
));
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
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.
277 if (!(obj
->flags
& USED
)) {
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
));
287 if (safe_create_leading_directories_const(filename
)) {
288 error("Could not create lost-found");
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
);
297 fprintf(f
, "%s\n", describe_object(obj
));
299 die_errno("Could not finish '%s'",
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.
313 static void check_object(struct object
*obj
)
316 fprintf(stderr
, "Checking %s\n", describe_object(obj
));
318 if (obj
->flags
& REACHABLE
)
319 check_reachable_object(obj
);
321 check_unreachable_object(obj
);
324 static void check_connectivity(void)
328 /* Traverse the pending reachable objects */
329 traverse_reachable();
331 /* Look up all the requirements, warn about missing objects.. */
332 max
= get_max_object_index();
334 fprintf(stderr
, "Checking connectivity (%d objects)\n", max
);
336 for (i
= 0; i
< max
; i
++) {
337 struct object
*obj
= get_indexed_object(i
);
344 static int fsck_obj(struct object
*obj
, void *buffer
, unsigned long size
)
348 if (obj
->flags
& SEEN
)
353 fprintf(stderr
, "Checking %s %s\n",
354 printable_type(obj
), describe_object(obj
));
356 if (fsck_walk(obj
, NULL
, &fsck_obj_options
))
357 objerror(obj
, "broken links");
358 err
= fsck_object(obj
, buffer
, size
, &fsck_obj_options
);
362 if (obj
->type
== OBJ_COMMIT
) {
363 struct commit
*commit
= (struct commit
*) obj
;
365 if (!commit
->parents
&& show_root
)
366 printf("root %s\n", describe_object(&commit
->object
));
369 if (obj
->type
== OBJ_TAG
) {
370 struct tag
*tag
= (struct tag
*) obj
;
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
));
381 if (obj
->type
== OBJ_TREE
)
382 free_tree_buffer((struct tree
*)obj
);
383 if (obj
->type
== OBJ_COMMIT
)
384 free_commit_buffer((struct commit
*)obj
);
388 static int fsck_obj_buffer(const struct object_id
*oid
, enum object_type type
,
389 unsigned long size
, void *buffer
, int *eaten
)
392 * Note, buffer may be NULL if type is OBJ_BLOB. See
393 * verify_packfile(), data_valid variable for details.
396 obj
= parse_object_buffer(the_repository
, oid
, type
, size
, buffer
,
399 errors_found
|= ERROR_OBJECT
;
400 return error("%s: object corrupt or missing", oid_to_hex(oid
));
402 obj
->flags
&= ~(REACHABLE
| SEEN
);
403 obj
->flags
|= HAS_OBJ
;
404 return fsck_obj(obj
, buffer
, size
);
407 static int default_refs
;
409 static void fsck_handle_reflog_oid(const char *refname
, struct object_id
*oid
,
410 timestamp_t timestamp
)
414 if (!is_null_oid(oid
)) {
415 obj
= lookup_object(the_repository
, oid
->hash
);
416 if (obj
&& (obj
->flags
& HAS_OBJ
)) {
417 if (timestamp
&& name_objects
)
418 add_decoration(fsck_walk_options
.object_names
,
420 xstrfmt("%s@{%"PRItime
"}", refname
, timestamp
));
422 mark_object_reachable(obj
);
423 } else if (!is_promisor_object(oid
)) {
424 error("%s: invalid reflog entry %s", refname
, oid_to_hex(oid
));
425 errors_found
|= ERROR_REACHABLE
;
430 static int fsck_handle_reflog_ent(struct object_id
*ooid
, struct object_id
*noid
,
431 const char *email
, timestamp_t timestamp
, int tz
,
432 const char *message
, void *cb_data
)
434 const char *refname
= cb_data
;
437 fprintf(stderr
, "Checking reflog %s->%s\n",
438 oid_to_hex(ooid
), oid_to_hex(noid
));
440 fsck_handle_reflog_oid(refname
, ooid
, 0);
441 fsck_handle_reflog_oid(refname
, noid
, timestamp
);
445 static int fsck_handle_reflog(const char *logname
, const struct object_id
*oid
,
446 int flag
, void *cb_data
)
448 struct strbuf refname
= STRBUF_INIT
;
450 strbuf_worktree_ref(cb_data
, &refname
, logname
);
451 for_each_reflog_ent(refname
.buf
, fsck_handle_reflog_ent
, refname
.buf
);
452 strbuf_release(&refname
);
456 static int fsck_handle_ref(const char *refname
, const struct object_id
*oid
,
457 int flag
, void *cb_data
)
461 obj
= parse_object(the_repository
, oid
);
463 if (is_promisor_object(oid
)) {
465 * Increment default_refs anyway, because this is a
471 error("%s: invalid sha1 pointer %s", refname
, oid_to_hex(oid
));
472 errors_found
|= ERROR_REACHABLE
;
473 /* We'll continue with the rest despite the error.. */
476 if (obj
->type
!= OBJ_COMMIT
&& is_branch(refname
)) {
477 error("%s: not a commit", refname
);
478 errors_found
|= ERROR_REFS
;
483 add_decoration(fsck_walk_options
.object_names
,
484 obj
, xstrdup(refname
));
485 mark_object_reachable(obj
);
490 static int fsck_head_link(const char *head_ref_name
,
491 const char **head_points_at
,
492 struct object_id
*head_oid
);
494 static void get_default_heads(void)
496 struct worktree
**worktrees
, **p
;
497 const char *head_points_at
;
498 struct object_id head_oid
;
500 for_each_rawref(fsck_handle_ref
, NULL
);
502 worktrees
= get_worktrees(0);
503 for (p
= worktrees
; *p
; p
++) {
504 struct worktree
*wt
= *p
;
505 struct strbuf ref
= STRBUF_INIT
;
507 strbuf_worktree_ref(wt
, &ref
, "HEAD");
508 fsck_head_link(ref
.buf
, &head_points_at
, &head_oid
);
509 if (head_points_at
&& !is_null_oid(&head_oid
))
510 fsck_handle_ref(ref
.buf
, &head_oid
, 0, NULL
);
511 strbuf_release(&ref
);
514 refs_for_each_reflog(get_worktree_ref_store(wt
),
515 fsck_handle_reflog
, wt
);
517 free_worktrees(worktrees
);
520 * Not having any default heads isn't really fatal, but
521 * it does mean that "--unreachable" no longer makes any
522 * sense (since in this case everything will obviously
523 * be unreachable by definition.
525 * Showing dangling objects is valid, though (as those
526 * dangling objects are likely lost heads).
528 * So we just print a warning about it, and clear the
529 * "show_unreachable" flag.
532 fprintf(stderr
, "notice: No default references\n");
533 show_unreachable
= 0;
537 static int fsck_loose(const struct object_id
*oid
, const char *path
, void *data
)
540 enum object_type type
;
545 if (read_loose_object(path
, oid
, &type
, &size
, &contents
) < 0) {
546 errors_found
|= ERROR_OBJECT
;
547 error("%s: object corrupt or missing: %s",
548 oid_to_hex(oid
), path
);
549 return 0; /* keep checking other objects */
552 if (!contents
&& type
!= OBJ_BLOB
)
553 BUG("read_loose_object streamed a non-blob");
555 obj
= parse_object_buffer(the_repository
, oid
, type
, size
,
559 errors_found
|= ERROR_OBJECT
;
560 error("%s: object could not be parsed: %s",
561 oid_to_hex(oid
), path
);
564 return 0; /* keep checking other objects */
567 obj
->flags
&= ~(REACHABLE
| SEEN
);
568 obj
->flags
|= HAS_OBJ
;
569 if (fsck_obj(obj
, contents
, size
))
570 errors_found
|= ERROR_OBJECT
;
574 return 0; /* keep checking other objects, even if we saw an error */
577 static int fsck_cruft(const char *basename
, const char *path
, void *data
)
579 if (!starts_with(basename
, "tmp_obj_"))
580 fprintf(stderr
, "bad sha1 file: %s\n", path
);
584 static int fsck_subdir(unsigned int nr
, const char *path
, void *progress
)
586 display_progress(progress
, nr
+ 1);
590 static void fsck_object_dir(const char *path
)
592 struct progress
*progress
= NULL
;
595 fprintf(stderr
, "Checking object directory\n");
598 progress
= start_progress(_("Checking object directories"), 256);
600 for_each_loose_file_in_objdir(path
, fsck_loose
, fsck_cruft
, fsck_subdir
,
602 display_progress(progress
, 256);
603 stop_progress(&progress
);
606 static int fsck_head_link(const char *head_ref_name
,
607 const char **head_points_at
,
608 struct object_id
*head_oid
)
610 int null_is_error
= 0;
613 fprintf(stderr
, "Checking %s link\n", head_ref_name
);
615 *head_points_at
= resolve_ref_unsafe(head_ref_name
, 0, head_oid
, NULL
);
616 if (!*head_points_at
) {
617 errors_found
|= ERROR_REFS
;
618 return error("Invalid %s", head_ref_name
);
620 if (!strcmp(*head_points_at
, head_ref_name
))
623 else if (!starts_with(*head_points_at
, "refs/heads/")) {
624 errors_found
|= ERROR_REFS
;
625 return error("%s points to something strange (%s)",
626 head_ref_name
, *head_points_at
);
628 if (is_null_oid(head_oid
)) {
630 errors_found
|= ERROR_REFS
;
631 return error("%s: detached HEAD points at nothing",
634 fprintf(stderr
, "notice: %s points to an unborn branch (%s)\n",
635 head_ref_name
, *head_points_at
+ 11);
640 static int fsck_cache_tree(struct cache_tree
*it
)
646 fprintf(stderr
, "Checking cache tree\n");
648 if (0 <= it
->entry_count
) {
649 struct object
*obj
= parse_object(the_repository
, &it
->oid
);
651 error("%s: invalid sha1 pointer in cache-tree",
652 oid_to_hex(&it
->oid
));
653 errors_found
|= ERROR_REFS
;
658 add_decoration(fsck_walk_options
.object_names
,
660 mark_object_reachable(obj
);
661 if (obj
->type
!= OBJ_TREE
)
662 err
|= objerror(obj
, "non-tree in cache-tree");
664 for (i
= 0; i
< it
->subtree_nr
; i
++)
665 err
|= fsck_cache_tree(it
->down
[i
]->cache_tree
);
669 static void mark_object_for_connectivity(const struct object_id
*oid
)
671 struct object
*obj
= lookup_unknown_object(oid
->hash
);
672 obj
->flags
|= HAS_OBJ
;
675 static int mark_loose_for_connectivity(const struct object_id
*oid
,
679 mark_object_for_connectivity(oid
);
683 static int mark_packed_for_connectivity(const struct object_id
*oid
,
684 struct packed_git
*pack
,
688 mark_object_for_connectivity(oid
);
692 static char const * const fsck_usage
[] = {
693 N_("git fsck [<options>] [<object>...]"),
697 static struct option fsck_opts
[] = {
698 OPT__VERBOSE(&verbose
, N_("be verbose")),
699 OPT_BOOL(0, "unreachable", &show_unreachable
, N_("show unreachable objects")),
700 OPT_BOOL(0, "dangling", &show_dangling
, N_("show dangling objects")),
701 OPT_BOOL(0, "tags", &show_tags
, N_("report tags")),
702 OPT_BOOL(0, "root", &show_root
, N_("report root nodes")),
703 OPT_BOOL(0, "cache", &keep_cache_objects
, N_("make index objects head nodes")),
704 OPT_BOOL(0, "reflogs", &include_reflogs
, N_("make reflogs head nodes (default)")),
705 OPT_BOOL(0, "full", &check_full
, N_("also consider packs and alternate objects")),
706 OPT_BOOL(0, "connectivity-only", &connectivity_only
, N_("check only connectivity")),
707 OPT_BOOL(0, "strict", &check_strict
, N_("enable more strict checking")),
708 OPT_BOOL(0, "lost-found", &write_lost_and_found
,
709 N_("write dangling objects in .git/lost-found")),
710 OPT_BOOL(0, "progress", &show_progress
, N_("show progress")),
711 OPT_BOOL(0, "name-objects", &name_objects
, N_("show verbose names for reachable objects")),
715 int cmd_fsck(int argc
, const char **argv
, const char *prefix
)
718 struct alternate_object_database
*alt
;
720 /* fsck knows how to handle missing promisor objects */
721 fetch_if_missing
= 0;
724 read_replace_refs
= 0;
726 argc
= parse_options(argc
, argv
, prefix
, fsck_opts
, fsck_usage
, 0);
728 fsck_walk_options
.walk
= mark_object
;
729 fsck_obj_options
.walk
= mark_used
;
730 fsck_obj_options
.error_func
= fsck_error_func
;
732 fsck_obj_options
.strict
= 1;
734 if (show_progress
== -1)
735 show_progress
= isatty(2);
739 if (write_lost_and_found
) {
745 fsck_walk_options
.object_names
=
746 xcalloc(1, sizeof(struct decoration
));
748 git_config(fsck_config
, NULL
);
750 if (connectivity_only
) {
751 for_each_loose_object(mark_loose_for_connectivity
, NULL
, 0);
752 for_each_packed_object(mark_packed_for_connectivity
, NULL
, 0);
754 struct alternate_object_database
*alt_odb_list
;
756 fsck_object_dir(get_object_directory());
758 prepare_alt_odb(the_repository
);
759 alt_odb_list
= the_repository
->objects
->alt_odb_list
;
760 for (alt
= alt_odb_list
; alt
; alt
= alt
->next
)
761 fsck_object_dir(alt
->path
);
764 struct packed_git
*p
;
765 uint32_t total
= 0, count
= 0;
766 struct progress
*progress
= NULL
;
769 for (p
= get_all_packs(the_repository
); p
;
771 if (open_pack_index(p
))
773 total
+= p
->num_objects
;
776 progress
= start_progress(_("Checking objects"), total
);
778 for (p
= get_all_packs(the_repository
); p
;
780 /* verify gives error messages itself */
781 if (verify_pack(p
, fsck_obj_buffer
,
783 errors_found
|= ERROR_PACK
;
784 count
+= p
->num_objects
;
786 stop_progress(&progress
);
789 if (fsck_finish(&fsck_obj_options
))
790 errors_found
|= ERROR_OBJECT
;
793 for (i
= 0; i
< argc
; i
++) {
794 const char *arg
= argv
[i
];
795 struct object_id oid
;
796 if (!get_oid(arg
, &oid
)) {
797 struct object
*obj
= lookup_object(the_repository
,
800 if (!obj
|| !(obj
->flags
& HAS_OBJ
)) {
801 if (is_promisor_object(&oid
))
803 error("%s: object missing", oid_to_hex(&oid
));
804 errors_found
|= ERROR_OBJECT
;
810 add_decoration(fsck_walk_options
.object_names
,
812 mark_object_reachable(obj
);
815 error("invalid parameter: expected sha1, got '%s'", arg
);
816 errors_found
|= ERROR_OBJECT
;
820 * If we've not been given any explicit head information, do the
821 * default ones from .git/refs. We also consider the index file
822 * in this case (ie this implies --cache).
826 keep_cache_objects
= 1;
829 if (keep_cache_objects
) {
830 verify_index_checksum
= 1;
833 for (i
= 0; i
< active_nr
; i
++) {
838 mode
= active_cache
[i
]->ce_mode
;
839 if (S_ISGITLINK(mode
))
841 blob
= lookup_blob(the_repository
,
842 &active_cache
[i
]->oid
);
848 add_decoration(fsck_walk_options
.object_names
,
850 xstrfmt(":%s", active_cache
[i
]->name
));
851 mark_object_reachable(obj
);
853 if (active_cache_tree
)
854 fsck_cache_tree(active_cache_tree
);
857 check_connectivity();
859 if (!git_config_get_bool("core.commitgraph", &i
) && i
) {
860 struct child_process commit_graph_verify
= CHILD_PROCESS_INIT
;
861 const char *verify_argv
[] = { "commit-graph", "verify", NULL
, NULL
, NULL
};
863 commit_graph_verify
.argv
= verify_argv
;
864 commit_graph_verify
.git_cmd
= 1;
865 if (run_command(&commit_graph_verify
))
866 errors_found
|= ERROR_COMMIT_GRAPH
;
868 prepare_alt_odb(the_repository
);
869 for (alt
= the_repository
->objects
->alt_odb_list
; alt
; alt
= alt
->next
) {
870 verify_argv
[2] = "--object-dir";
871 verify_argv
[3] = alt
->path
;
872 if (run_command(&commit_graph_verify
))
873 errors_found
|= ERROR_COMMIT_GRAPH
;
877 if (!git_config_get_bool("core.multipackindex", &i
) && i
) {
878 struct child_process midx_verify
= CHILD_PROCESS_INIT
;
879 const char *midx_argv
[] = { "multi-pack-index", "verify", NULL
, NULL
, NULL
};
881 midx_verify
.argv
= midx_argv
;
882 midx_verify
.git_cmd
= 1;
883 if (run_command(&midx_verify
))
884 errors_found
|= ERROR_COMMIT_GRAPH
;
886 prepare_alt_odb(the_repository
);
887 for (alt
= the_repository
->objects
->alt_odb_list
; alt
; alt
= alt
->next
) {
888 midx_argv
[2] = "--object-dir";
889 midx_argv
[3] = alt
->path
;
890 if (run_command(&midx_verify
))
891 errors_found
|= ERROR_COMMIT_GRAPH
;