#include "builtin.h"

#include "cache.h"

#include "repository.h"

#include "config.h"

#include "commit.h"

#include "tree.h"

#include "blob.h"

#include "tag.h"

#include "refs.h"

#include "pack.h"

#include "cache-tree.h"

#include "tree-walk.h"

#include "fsck.h"

#include "parse-options.h"

#include "dir.h"

#include "progress.h"

#include "streaming.h"

#include "decorate.h"

#include "packfile.h"

#include "object-store.h"

#include "run-command.h"

#include "worktree.h"

#define REACHABLE 0x0001

#define SEEN 0x0002

#define HAS_OBJ 0x0004

/* This flag is set if something points to this object. */

#define USED 0x0008

static int show_root;

static int show_tags;

static int show_unreachable;

static int include_reflogs = 1;

static int check_full = 1;

static int connectivity_only;

static int check_strict;

static int keep_cache_objects;

static struct fsck_options fsck_walk_options = FSCK_OPTIONS_DEFAULT;

static struct fsck_options fsck_obj_options = FSCK_OPTIONS_DEFAULT;

static int errors_found;

static int write_lost_and_found;

static int verbose;

static int show_progress = -1;

static int show_dangling = 1;

static int name_objects;

#define ERROR_OBJECT 01

#define ERROR_REACHABLE 02

#define ERROR_PACK 04

#define ERROR_REFS 010

#define ERROR_COMMIT_GRAPH 020

static const char *describe_object(struct object *obj)

{

static struct strbuf bufs[] = {

STRBUF_INIT, STRBUF_INIT, STRBUF_INIT, STRBUF_INIT

};

static int b = 0;

struct strbuf *buf;

char *name = NULL;

if (name_objects)

name = lookup_decoration(fsck_walk_options.object_names, obj);

buf = bufs + b;

b = (b + 1) % ARRAY_SIZE(bufs);

strbuf_reset(buf);

strbuf_addstr(buf, oid_to_hex(&obj->oid));

if (name)

strbuf_addf(buf, " (%s)", name);

return buf->buf;

}

static const char *printable_type(struct object *obj)

{

const char *ret;

if (obj->type == OBJ_NONE) {

enum object_type type = oid_object_info(the_repository,

&obj->oid, NULL);

if (type > 0)

object_as_type(the_repository, obj, type, 0);

}

ret = type_name(obj->type);

if (!ret)

ret = _("unknown");

return ret;

}

static int fsck_config(const char *var, const char *value, void *cb)

{

if (strcmp(var, "fsck.skiplist") == 0) {

const char *path;

struct strbuf sb = STRBUF_INIT;

if (git_config_pathname(&path, var, value))

return 1;

strbuf_addf(&sb, "skiplist=%s", path);

free((char *)path);

fsck_set_msg_types(&fsck_obj_options, sb.buf);

strbuf_release(&sb);

return 0;

}

if (skip_prefix(var, "fsck.", &var)) {

fsck_set_msg_type(&fsck_obj_options, var, value);

return 0;

}

return git_default_config(var, value, cb);

}

static int objerror(struct object *obj, const char *err)

{

errors_found |= ERROR_OBJECT;

/* TRANSLATORS: e.g. error in tree 01bfda: <more explanation> */

fprintf_ln(stderr, _("error in %s %s: %s"),

printable_type(obj), describe_object(obj), err);

return -1;

}

static int fsck_error_func(struct fsck_options *o,

struct object *obj, int type, const char *message)

{

switch (type) {

case FSCK_WARN:

/* TRANSLATORS: e.g. warning in tree 01bfda: <more explanation> */

fprintf_ln(stderr, _("warning in %s %s: %s"),

printable_type(obj), describe_object(obj), message);

return 0;

case FSCK_ERROR:

/* TRANSLATORS: e.g. error in tree 01bfda: <more explanation> */

fprintf_ln(stderr, _("error in %s %s: %s"),

printable_type(obj), describe_object(obj), message);

return 1;

default:

BUG("%d (FSCK_IGNORE?) should never trigger this callback", type);

}

}

static struct object_array pending;

static int mark_object(struct object *obj, int type, void *data, struct fsck_options *options)

{

struct object *parent = data;

/*

* The only case data is NULL or type is OBJ_ANY is when

* mark_object_reachable() calls us. All the callers of

* that function has non-NULL obj hence ...

*/

if (!obj) {

/* ... these references to parent->fld are safe here */

printf_ln(_("broken link from %7s %s"),

printable_type(parent), describe_object(parent));

printf_ln(_("broken link from %7s %s"),

(type == OBJ_ANY ? _("unknown") : type_name(type)),

_("unknown"));

errors_found |= ERROR_REACHABLE;

return 1;

}

if (type != OBJ_ANY && obj->type != type)

/* ... and the reference to parent is safe here */

objerror(parent, _("wrong object type in link"));

if (obj->flags & REACHABLE)

return 0;

obj->flags |= REACHABLE;

if (is_promisor_object(&obj->oid))

/*

* Further recursion does not need to be performed on this

* object since it is a promisor object (so it does not need to

* be added to "pending").

*/

return 0;

if (!(obj->flags & HAS_OBJ)) {

if (parent && !has_object_file(&obj->oid)) {

printf_ln(_("broken link from %7s %s\n"

" to %7s %s"),

printable_type(parent),

describe_object(parent),

printable_type(obj),

describe_object(obj));

errors_found |= ERROR_REACHABLE;

}

return 1;

}

add_object_array(obj, NULL, &pending);

return 0;

}

static void mark_object_reachable(struct object *obj)

{

mark_object(obj, OBJ_ANY, NULL, NULL);

}

static int traverse_one_object(struct object *obj)

{

int result = fsck_walk(obj, obj, &fsck_walk_options);

if (obj->type == OBJ_TREE) {

struct tree *tree = (struct tree *)obj;

free_tree_buffer(tree);

}

return result;

}

static int traverse_reachable(void)

{

struct progress *progress = NULL;

unsigned int nr = 0;

int result = 0;

if (show_progress)

progress = start_delayed_progress(_("Checking connectivity"), 0);

while (pending.nr) {

result |= traverse_one_object(object_array_pop(&pending));

display_progress(progress, ++nr);

}

stop_progress(&progress);

return !!result;

}

static int mark_used(struct object *obj, int type, void *data, struct fsck_options *options)

{

if (!obj)

return 1;

obj->flags |= USED;

return 0;

}

/*

* Check a single reachable object

*/

static void check_reachable_object(struct object *obj)

{

/*

* We obviously want the object to be parsed,

* except if it was in a pack-file and we didn't

* do a full fsck

*/

if (!(obj->flags & HAS_OBJ)) {

if (is_promisor_object(&obj->oid))

return;

if (has_object_pack(&obj->oid))

return; /* it is in pack - forget about it */

printf_ln(_("missing %s %s"), printable_type(obj),

describe_object(obj));

errors_found |= ERROR_REACHABLE;

return;

}

}

/*

* Check a single unreachable object

*/

static void check_unreachable_object(struct object *obj)

{

/*

* Missing unreachable object? Ignore it. It's not like

* we miss it (since it can't be reached), nor do we want

* to complain about it being unreachable (since it does

* not exist).

*/

if (!(obj->flags & HAS_OBJ))

return;

/*

* Unreachable object that exists? Show it if asked to,

* since this is something that is prunable.

*/

if (show_unreachable) {

printf_ln(_("unreachable %s %s"), printable_type(obj),

describe_object(obj));

return;

}

/*

* "!USED" means that nothing at all points to it, including

* other unreachable objects. In other words, it's the "tip"

* of some set of unreachable objects, usually a commit that

* got dropped.

*

* Such starting points are more interesting than some random

* set of unreachable objects, so we show them even if the user

* hasn't asked for _all_ unreachable objects. If you have

* deleted a branch by mistake, this is a prime candidate to

* start looking at, for example.

*/

if (!(obj->flags & USED)) {

if (show_dangling)

printf_ln(_("dangling %s %s"), printable_type(obj),

describe_object(obj));

if (write_lost_and_found) {

char *filename = git_pathdup("lost-found/%s/%s",

obj->type == OBJ_COMMIT ? "commit" : "other",

describe_object(obj));

FILE *f;

if (safe_create_leading_directories_const(filename)) {

error(_("could not create lost-found"));

free(filename);

return;

}

f = xfopen(filename, "w");

if (obj->type == OBJ_BLOB) {

if (stream_blob_to_fd(fileno(f), &obj->oid, NULL, 1))

die_errno(_("could not write '%s'"), filename);

} else

fprintf(f, "%s\n", describe_object(obj));

if (fclose(f))

die_errno(_("could not finish '%s'"),

filename);

free(filename);

}

return;

}

/*

* Otherwise? It's there, it's unreachable, and some other unreachable

* object points to it. Ignore it - it's not interesting, and we showed

* all the interesting cases above.

*/

}

static void check_object(struct object *obj)

{

if (verbose)

fprintf_ln(stderr, _("Checking %s"), describe_object(obj));

if (obj->flags & REACHABLE)

check_reachable_object(obj);

else

check_unreachable_object(obj);

}

static void check_connectivity(void)

{

int i, max;

/* Traverse the pending reachable objects */

traverse_reachable();

/* Look up all the requirements, warn about missing objects.. */

max = get_max_object_index();

if (verbose)

fprintf_ln(stderr, _("Checking connectivity (%d objects)"), max);

for (i = 0; i < max; i++) {

struct object *obj = get_indexed_object(i);

if (obj)

check_object(obj);

}

}

static int fsck_obj(struct object *obj, void *buffer, unsigned long size)

{

int err;

if (obj->flags & SEEN)

return 0;

obj->flags |= SEEN;

if (verbose)

fprintf_ln(stderr, _("Checking %s %s"),

printable_type(obj), describe_object(obj));

if (fsck_walk(obj, NULL, &fsck_obj_options))

objerror(obj, _("broken links"));

err = fsck_object(obj, buffer, size, &fsck_obj_options);

if (err)

goto out;

if (obj->type == OBJ_COMMIT) {

struct commit *commit = (struct commit *) obj;

if (!commit->parents && show_root)

printf_ln(_("root %s"),

describe_object(&commit->object));

}

if (obj->type == OBJ_TAG) {

struct tag *tag = (struct tag *) obj;

if (show_tags && tag->tagged) {

printf_ln(_("tagged %s %s (%s) in %s"),

printable_type(tag->tagged),

describe_object(tag->tagged),

tag->tag,

describe_object(&tag->object));

}

}

out:

if (obj->type == OBJ_TREE)

free_tree_buffer((struct tree *)obj);

if (obj->type == OBJ_COMMIT)

free_commit_buffer((struct commit *)obj);

return err;

}

static int fsck_obj_buffer(const struct object_id *oid, enum object_type type,

unsigned long size, void *buffer, int *eaten)

{

/*

* Note, buffer may be NULL if type is OBJ_BLOB. See

* verify_packfile(), data_valid variable for details.

*/

struct object *obj;

obj = parse_object_buffer(the_repository, oid, type, size, buffer,

eaten);

if (!obj) {

errors_found |= ERROR_OBJECT;

return error(_("%s: object corrupt or missing"),

oid_to_hex(oid));

}

obj->flags &= ~(REACHABLE | SEEN);

obj->flags |= HAS_OBJ;

return fsck_obj(obj, buffer, size);

}

static int default_refs;

static void fsck_handle_reflog_oid(const char *refname, struct object_id *oid,

timestamp_t timestamp)

{

struct object *obj;

if (!is_null_oid(oid)) {

obj = lookup_object(the_repository, oid->hash);

if (obj && (obj->flags & HAS_OBJ)) {

if (timestamp && name_objects)

add_decoration(fsck_walk_options.object_names,

obj,

xstrfmt("%s@{%"PRItime"}", refname, timestamp));

obj->flags |= USED;

mark_object_reachable(obj);

} else if (!is_promisor_object(oid)) {

error(_("%s: invalid reflog entry %s"),

refname, oid_to_hex(oid));

errors_found |= ERROR_REACHABLE;

}

}

}

static int fsck_handle_reflog_ent(struct object_id *ooid, struct object_id *noid,

const char *email, timestamp_t timestamp, int tz,

const char *message, void *cb_data)

{

const char *refname = cb_data;

if (verbose)

fprintf_ln(stderr, _("Checking reflog %s->%s"),

oid_to_hex(ooid), oid_to_hex(noid));

fsck_handle_reflog_oid(refname, ooid, 0);

fsck_handle_reflog_oid(refname, noid, timestamp);

return 0;

}

static int fsck_handle_reflog(const char *logname, const struct object_id *oid,

int flag, void *cb_data)

{

struct strbuf refname = STRBUF_INIT;

strbuf_worktree_ref(cb_data, &refname, logname);

for_each_reflog_ent(refname.buf, fsck_handle_reflog_ent, refname.buf);

strbuf_release(&refname);

return 0;

}

static int fsck_handle_ref(const char *refname, const struct object_id *oid,

int flag, void *cb_data)

{

struct object *obj;

obj = parse_object(the_repository, oid);

if (!obj) {

if (is_promisor_object(oid)) {

/*

* Increment default_refs anyway, because this is a

* valid ref.

*/

default_refs++;

return 0;

}

error(_("%s: invalid sha1 pointer %s"),

refname, oid_to_hex(oid));

errors_found |= ERROR_REACHABLE;

/* We'll continue with the rest despite the error.. */

return 0;

}

if (obj->type != OBJ_COMMIT && is_branch(refname)) {

error(_("%s: not a commit"), refname);

errors_found |= ERROR_REFS;

}

default_refs++;

obj->flags |= USED;

if (name_objects)

add_decoration(fsck_walk_options.object_names,

obj, xstrdup(refname));

mark_object_reachable(obj);

return 0;

}

static int fsck_head_link(const char *head_ref_name,

const char **head_points_at,

struct object_id *head_oid);

static void get_default_heads(void)

{

struct worktree **worktrees, **p;

const char *head_points_at;

struct object_id head_oid;

for_each_rawref(fsck_handle_ref, NULL);

worktrees = get_worktrees(0);

for (p = worktrees; *p; p++) {

struct worktree *wt = *p;

struct strbuf ref = STRBUF_INIT;

strbuf_worktree_ref(wt, &ref, "HEAD");

fsck_head_link(ref.buf, &head_points_at, &head_oid);

if (head_points_at && !is_null_oid(&head_oid))

fsck_handle_ref(ref.buf, &head_oid, 0, NULL);

strbuf_release(&ref);

if (include_reflogs)

refs_for_each_reflog(get_worktree_ref_store(wt),

fsck_handle_reflog, wt);

}

free_worktrees(worktrees);

/*

* Not having any default heads isn't really fatal, but

* it does mean that "--unreachable" no longer makes any

* sense (since in this case everything will obviously

* be unreachable by definition.

*

* Showing dangling objects is valid, though (as those

* dangling objects are likely lost heads).

*

* So we just print a warning about it, and clear the

* "show_unreachable" flag.

*/

if (!default_refs) {

fprintf_ln(stderr, _("notice: No default references"));

show_unreachable = 0;

}

}

static int fsck_loose(const struct object_id *oid, const char *path, void *data)

{

struct object *obj;

enum object_type type;

unsigned long size;

void *contents;

int eaten;

if (read_loose_object(path, oid, &type, &size, &contents) < 0) {

errors_found |= ERROR_OBJECT;

error(_("%s: object corrupt or missing: %s"),

oid_to_hex(oid), path);

return 0; /* keep checking other objects */

}

if (!contents && type != OBJ_BLOB)

BUG("read_loose_object streamed a non-blob");

obj = parse_object_buffer(the_repository, oid, type, size,

contents, &eaten);

if (!obj) {

errors_found |= ERROR_OBJECT;

error(_("%s: object could not be parsed: %s"),

oid_to_hex(oid), path);

if (!eaten)

free(contents);

return 0; /* keep checking other objects */

}

obj->flags &= ~(REACHABLE | SEEN);

obj->flags |= HAS_OBJ;

if (fsck_obj(obj, contents, size))

errors_found |= ERROR_OBJECT;

if (!eaten)

free(contents);

return 0; /* keep checking other objects, even if we saw an error */

}

static int fsck_cruft(const char *basename, const char *path, void *data)

{

if (!starts_with(basename, "tmp_obj_"))

fprintf_ln(stderr, _("bad sha1 file: %s"), path);

return 0;

}

static int fsck_subdir(unsigned int nr, const char *path, void *progress)

{

display_progress(progress, nr + 1);

return 0;

}

static void fsck_object_dir(const char *path)

{

struct progress *progress = NULL;

if (verbose)

fprintf_ln(stderr, _("Checking object directory"));

if (show_progress)

progress = start_progress(_("Checking object directories"), 256);

for_each_loose_file_in_objdir(path, fsck_loose, fsck_cruft, fsck_subdir,

progress);

display_progress(progress, 256);

stop_progress(&progress);

}

static int fsck_head_link(const char *head_ref_name,

const char **head_points_at,

struct object_id *head_oid)

{

int null_is_error = 0;

if (verbose)

fprintf_ln(stderr, _("Checking %s link"), head_ref_name);

*head_points_at = resolve_ref_unsafe(head_ref_name, 0, head_oid, NULL);

if (!*head_points_at) {

errors_found |= ERROR_REFS;

return error(_("invalid %s"), head_ref_name);

}

if (!strcmp(*head_points_at, head_ref_name))

/* detached HEAD */

null_is_error = 1;

else if (!starts_with(*head_points_at, "refs/heads/")) {

errors_found |= ERROR_REFS;

return error(_("%s points to something strange (%s)"),

head_ref_name, *head_points_at);

}

if (is_null_oid(head_oid)) {

if (null_is_error) {

errors_found |= ERROR_REFS;

return error(_("%s: detached HEAD points at nothing"),

head_ref_name);

}

fprintf_ln(stderr,

_("notice: %s points to an unborn branch (%s)"),

head_ref_name, *head_points_at + 11);

}

return 0;

}

static int fsck_cache_tree(struct cache_tree *it)

{

int i;

int err = 0;

if (verbose)

fprintf_ln(stderr, _("Checking cache tree"));

if (0 <= it->entry_count) {

struct object *obj = parse_object(the_repository, &it->oid);

if (!obj) {

error(_("%s: invalid sha1 pointer in cache-tree"),

oid_to_hex(&it->oid));

errors_found |= ERROR_REFS;

return 1;

}

obj->flags |= USED;

if (name_objects)

add_decoration(fsck_walk_options.object_names,

obj, xstrdup(":"));

mark_object_reachable(obj);

if (obj->type != OBJ_TREE)

err |= objerror(obj, _("non-tree in cache-tree"));

}

for (i = 0; i < it->subtree_nr; i++)

err |= fsck_cache_tree(it->down[i]->cache_tree);

return err;

}

static void mark_object_for_connectivity(const struct object_id *oid)

{

struct object *obj = lookup_unknown_object(oid->hash);

obj->flags |= HAS_OBJ;

}

static int mark_loose_for_connectivity(const struct object_id *oid,

const char *path,

void *data)

{

mark_object_for_connectivity(oid);

return 0;

}

static int mark_packed_for_connectivity(const struct object_id *oid,

struct packed_git *pack,

uint32_t pos,

void *data)

{

mark_object_for_connectivity(oid);

return 0;

}

static char const * const fsck_usage[] = {

N_("git fsck [<options>] [<object>...]"),

NULL

};

static struct option fsck_opts[] = {

OPT__VERBOSE(&verbose, N_("be verbose")),

OPT_BOOL(0, "unreachable", &show_unreachable, N_("show unreachable objects")),

OPT_BOOL(0, "dangling", &show_dangling, N_("show dangling objects")),

OPT_BOOL(0, "tags", &show_tags, N_("report tags")),

OPT_BOOL(0, "root", &show_root, N_("report root nodes")),

OPT_BOOL(0, "cache", &keep_cache_objects, N_("make index objects head nodes")),

OPT_BOOL(0, "reflogs", &include_reflogs, N_("make reflogs head nodes (default)")),

OPT_BOOL(0, "full", &check_full, N_("also consider packs and alternate objects")),

OPT_BOOL(0, "connectivity-only", &connectivity_only, N_("check only connectivity")),

OPT_BOOL(0, "strict", &check_strict, N_("enable more strict checking")),

OPT_BOOL(0, "lost-found", &write_lost_and_found,

N_("write dangling objects in .git/lost-found")),

OPT_BOOL(0, "progress", &show_progress, N_("show progress")),

OPT_BOOL(0, "name-objects", &name_objects, N_("show verbose names for reachable objects")),

OPT_END(),

};

int cmd_fsck(int argc, const char **argv, const char *prefix)

{

int i;

struct object_directory *odb;

/* fsck knows how to handle missing promisor objects */

fetch_if_missing = 0;

errors_found = 0;

read_replace_refs = 0;

argc = parse_options(argc, argv, prefix, fsck_opts, fsck_usage, 0);

fsck_walk_options.walk = mark_object;

fsck_obj_options.walk = mark_used;

fsck_obj_options.error_func = fsck_error_func;

if (check_strict)

fsck_obj_options.strict = 1;

if (show_progress == -1)

show_progress = isatty(2);

if (verbose)

show_progress = 0;

if (write_lost_and_found) {

check_full = 1;

include_reflogs = 0;

}

if (name_objects)

fsck_walk_options.object_names =

xcalloc(1, sizeof(struct decoration));

git_config(fsck_config, NULL);

if (connectivity_only) {

for_each_loose_object(mark_loose_for_connectivity, NULL, 0);

for_each_packed_object(mark_packed_for_connectivity, NULL, 0);

} else {

prepare_alt_odb(the_repository);

for (odb = the_repository->objects->odb; odb; odb = odb->next)

fsck_object_dir(odb->path);

if (check_full) {

struct packed_git *p;

uint32_t total = 0, count = 0;

struct progress *progress = NULL;

if (show_progress) {

for (p = get_all_packs(the_repository); p;

p = p->next) {

if (open_pack_index(p))

continue;

total += p->num_objects;

}

progress = start_progress(_("Checking objects"), total);

}

for (p = get_all_packs(the_repository); p;

p = p->next) {

/* verify gives error messages itself */

if (verify_pack(the_repository,

p, fsck_obj_buffer,

progress, count))

errors_found |= ERROR_PACK;

count += p->num_objects;

}

stop_progress(&progress);

}

if (fsck_finish(&fsck_obj_options))

errors_found |= ERROR_OBJECT;

}

for (i = 0; i < argc; i++) {

const char *arg = argv[i];

struct object_id oid;

if (!get_oid(arg, &oid)) {

struct object *obj = lookup_object(the_repository,

oid.hash);

if (!obj || !(obj->flags & HAS_OBJ)) {

if (is_promisor_object(&oid))

continue;

error(_("%s: object missing"), oid_to_hex(&oid));

errors_found |= ERROR_OBJECT;

continue;

}

obj->flags |= USED;

if (name_objects)

add_decoration(fsck_walk_options.object_names,

obj, xstrdup(arg));

mark_object_reachable(obj);

continue;

}

error(_("invalid parameter: expected sha1, got '%s'"), arg);

errors_found |= ERROR_OBJECT;

}

/*

* If we've not been given any explicit head information, do the

* default ones from .git/refs. We also consider the index file

* in this case (ie this implies --cache).

*/

if (!argc) {

get_default_heads();

keep_cache_objects = 1;

}

if (keep_cache_objects) {

verify_index_checksum = 1;

verify_ce_order = 1;

read_cache();

for (i = 0; i < active_nr; i++) {

unsigned int mode;

struct blob *blob;

struct object *obj;

mode = active_cache[i]->ce_mode;

if (S_ISGITLINK(mode))

continue;

blob = lookup_blob(the_repository,

&active_cache[i]->oid);

if (!blob)

continue;

obj = &blob->object;

obj->flags |= USED;

if (name_objects)

add_decoration(fsck_walk_options.object_names,

obj,

xstrfmt(":%s", active_cache[i]->name));

mark_object_reachable(obj);

}

if (active_cache_tree)

fsck_cache_tree(active_cache_tree);

}

check_connectivity();

if (!git_config_get_bool("core.commitgraph", &i) && i) {

struct child_process commit_graph_verify = CHILD_PROCESS_INIT;

const char *verify_argv[] = { "commit-graph", "verify", NULL, NULL, NULL };

prepare_alt_odb(the_repository);

for (odb = the_repository->objects->odb; odb; odb = odb->next) {

child_process_init(&commit_graph_verify);

commit_graph_verify.argv = verify_argv;

commit_graph_verify.git_cmd = 1;

verify_argv[2] = "--object-dir";

verify_argv[3] = odb->path;

if (run_command(&commit_graph_verify))

errors_found |= ERROR_COMMIT_GRAPH;

}

}

if (!git_config_get_bool("core.multipackindex", &i) && i) {

struct child_process midx_verify = CHILD_PROCESS_INIT;

const char *midx_argv[] = { "multi-pack-index", "verify", NULL, NULL, NULL };

prepare_alt_odb(the_repository);

for (odb = the_repository->objects->odb; odb; odb = odb->next) {

child_process_init(&midx_verify);

midx_verify.argv = midx_argv;

midx_verify.git_cmd = 1;

midx_argv[2] = "--object-dir";

midx_argv[3] = odb->path;

if (run_command(&midx_verify))

errors_found |= ERROR_COMMIT_GRAPH;

}

}

return errors_found;

}