1cd772cc41
We will need this in the next commit, where fsck will be taught to optionally name the objects when reporting issues about them. Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
705 lines
17 KiB
C
705 lines
17 KiB
C
#include "builtin.h"
|
|
#include "cache.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"
|
|
|
|
#define REACHABLE 0x0001
|
|
#define SEEN 0x0002
|
|
#define HAS_OBJ 0x0004
|
|
|
|
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 struct object_id head_oid;
|
|
static const char *head_points_at;
|
|
static int errors_found;
|
|
static int write_lost_and_found;
|
|
static int verbose;
|
|
static int show_progress = -1;
|
|
static int show_dangling = 1;
|
|
#define ERROR_OBJECT 01
|
|
#define ERROR_REACHABLE 02
|
|
#define ERROR_PACK 04
|
|
#define ERROR_REFS 010
|
|
|
|
static const char *describe_object(struct object *obj)
|
|
{
|
|
return oid_to_hex(&obj->oid);
|
|
}
|
|
|
|
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 void objreport(struct object *obj, const char *msg_type,
|
|
const char *err)
|
|
{
|
|
fprintf(stderr, "%s in %s %s: %s\n",
|
|
msg_type, typename(obj->type), describe_object(obj), err);
|
|
}
|
|
|
|
static int objerror(struct object *obj, const char *err)
|
|
{
|
|
errors_found |= ERROR_OBJECT;
|
|
objreport(obj, "error", err);
|
|
return -1;
|
|
}
|
|
|
|
static int fsck_error_func(struct fsck_options *o,
|
|
struct object *obj, int type, const char *message)
|
|
{
|
|
objreport(obj, (type == FSCK_WARN) ? "warning" : "error", message);
|
|
return (type == FSCK_WARN) ? 0 : 1;
|
|
}
|
|
|
|
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("broken link from %7s %s\n",
|
|
typename(parent->type), describe_object(parent));
|
|
printf("broken link from %7s %s\n",
|
|
(type == OBJ_ANY ? "unknown" : typename(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 (!(obj->flags & HAS_OBJ)) {
|
|
if (parent && !has_object_file(&obj->oid)) {
|
|
printf("broken link from %7s %s\n",
|
|
typename(parent->type), describe_object(parent));
|
|
printf(" to %7s %s\n",
|
|
typename(obj->type), 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;
|
|
struct tree *tree = NULL;
|
|
|
|
if (obj->type == OBJ_TREE) {
|
|
tree = (struct tree *)obj;
|
|
if (parse_tree(tree) < 0)
|
|
return 1; /* error already displayed */
|
|
}
|
|
result = fsck_walk(obj, obj, &fsck_walk_options);
|
|
if (tree)
|
|
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_progress_delay(_("Checking connectivity"), 0, 0, 2);
|
|
while (pending.nr) {
|
|
struct object_array_entry *entry;
|
|
struct object *obj;
|
|
|
|
entry = pending.objects + --pending.nr;
|
|
obj = entry->item;
|
|
result |= traverse_one_object(obj);
|
|
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->used = 1;
|
|
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 (has_sha1_pack(obj->oid.hash))
|
|
return; /* it is in pack - forget about it */
|
|
if (connectivity_only && has_object_file(&obj->oid))
|
|
return;
|
|
printf("missing %s %s\n", typename(obj->type),
|
|
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->parsed)
|
|
return;
|
|
|
|
/*
|
|
* Unreachable object that exists? Show it if asked to,
|
|
* since this is something that is prunable.
|
|
*/
|
|
if (show_unreachable) {
|
|
printf("unreachable %s %s\n", typename(obj->type),
|
|
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->used) {
|
|
if (show_dangling)
|
|
printf("dangling %s %s\n", typename(obj->type),
|
|
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;
|
|
}
|
|
if (!(f = fopen(filename, "w")))
|
|
die_errno("Could not open '%s'", filename);
|
|
if (obj->type == OBJ_BLOB) {
|
|
if (stream_blob_to_fd(fileno(f), obj->oid.hash, 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(stderr, "Checking %s\n", 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(stderr, "Checking connectivity (%d objects)\n", 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)
|
|
{
|
|
if (obj->flags & SEEN)
|
|
return 0;
|
|
obj->flags |= SEEN;
|
|
|
|
if (verbose)
|
|
fprintf(stderr, "Checking %s %s\n",
|
|
typename(obj->type), describe_object(obj));
|
|
|
|
if (fsck_walk(obj, NULL, &fsck_obj_options))
|
|
objerror(obj, "broken links");
|
|
if (fsck_object(obj, NULL, 0, &fsck_obj_options))
|
|
return -1;
|
|
|
|
if (obj->type == OBJ_TREE) {
|
|
struct tree *item = (struct tree *) obj;
|
|
|
|
free_tree_buffer(item);
|
|
}
|
|
|
|
if (obj->type == OBJ_COMMIT) {
|
|
struct commit *commit = (struct commit *) obj;
|
|
|
|
free_commit_buffer(commit);
|
|
|
|
if (!commit->parents && show_root)
|
|
printf("root %s\n", describe_object(&commit->object));
|
|
}
|
|
|
|
if (obj->type == OBJ_TAG) {
|
|
struct tag *tag = (struct tag *) obj;
|
|
|
|
if (show_tags && tag->tagged) {
|
|
printf("tagged %s %s", typename(tag->tagged->type),
|
|
describe_object(tag->tagged));
|
|
printf(" (%s) in %s\n", tag->tag,
|
|
describe_object(&tag->object));
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int fsck_sha1(const unsigned char *sha1)
|
|
{
|
|
struct object *obj = parse_object(sha1);
|
|
if (!obj) {
|
|
errors_found |= ERROR_OBJECT;
|
|
return error("%s: object corrupt or missing",
|
|
sha1_to_hex(sha1));
|
|
}
|
|
obj->flags |= HAS_OBJ;
|
|
return fsck_obj(obj);
|
|
}
|
|
|
|
static int fsck_obj_buffer(const unsigned char *sha1, enum object_type type,
|
|
unsigned long size, void *buffer, int *eaten)
|
|
{
|
|
struct object *obj;
|
|
obj = parse_object_buffer(sha1, type, size, buffer, eaten);
|
|
if (!obj) {
|
|
errors_found |= ERROR_OBJECT;
|
|
return error("%s: object corrupt or missing", sha1_to_hex(sha1));
|
|
}
|
|
obj->flags = HAS_OBJ;
|
|
return fsck_obj(obj);
|
|
}
|
|
|
|
static int default_refs;
|
|
|
|
static void fsck_handle_reflog_sha1(const char *refname, unsigned char *sha1)
|
|
{
|
|
struct object *obj;
|
|
|
|
if (!is_null_sha1(sha1)) {
|
|
obj = lookup_object(sha1);
|
|
if (obj) {
|
|
obj->used = 1;
|
|
mark_object_reachable(obj);
|
|
} else {
|
|
error("%s: invalid reflog entry %s", refname, sha1_to_hex(sha1));
|
|
errors_found |= ERROR_REACHABLE;
|
|
}
|
|
}
|
|
}
|
|
|
|
static int fsck_handle_reflog_ent(unsigned char *osha1, unsigned char *nsha1,
|
|
const char *email, unsigned long timestamp, int tz,
|
|
const char *message, void *cb_data)
|
|
{
|
|
const char *refname = cb_data;
|
|
|
|
if (verbose)
|
|
fprintf(stderr, "Checking reflog %s->%s\n",
|
|
sha1_to_hex(osha1), sha1_to_hex(nsha1));
|
|
|
|
fsck_handle_reflog_sha1(refname, osha1);
|
|
fsck_handle_reflog_sha1(refname, nsha1);
|
|
return 0;
|
|
}
|
|
|
|
static int fsck_handle_reflog(const char *logname, const struct object_id *oid,
|
|
int flag, void *cb_data)
|
|
{
|
|
for_each_reflog_ent(logname, fsck_handle_reflog_ent, (void *)logname);
|
|
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(oid->hash);
|
|
if (!obj) {
|
|
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->used = 1;
|
|
mark_object_reachable(obj);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void get_default_heads(void)
|
|
{
|
|
if (head_points_at && !is_null_oid(&head_oid))
|
|
fsck_handle_ref("HEAD", &head_oid, 0, NULL);
|
|
for_each_rawref(fsck_handle_ref, NULL);
|
|
if (include_reflogs)
|
|
for_each_reflog(fsck_handle_reflog, NULL);
|
|
|
|
/*
|
|
* 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(stderr, "notice: No default references\n");
|
|
show_unreachable = 0;
|
|
}
|
|
}
|
|
|
|
static int fsck_loose(const unsigned char *sha1, const char *path, void *data)
|
|
{
|
|
if (fsck_sha1(sha1))
|
|
errors_found |= ERROR_OBJECT;
|
|
return 0;
|
|
}
|
|
|
|
static int fsck_cruft(const char *basename, const char *path, void *data)
|
|
{
|
|
if (!starts_with(basename, "tmp_obj_"))
|
|
fprintf(stderr, "bad sha1 file: %s\n", path);
|
|
return 0;
|
|
}
|
|
|
|
static int fsck_subdir(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(stderr, "Checking object directory\n");
|
|
|
|
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(void)
|
|
{
|
|
int null_is_error = 0;
|
|
|
|
if (verbose)
|
|
fprintf(stderr, "Checking HEAD link\n");
|
|
|
|
head_points_at = resolve_ref_unsafe("HEAD", 0, head_oid.hash, NULL);
|
|
if (!head_points_at) {
|
|
errors_found |= ERROR_REFS;
|
|
return error("Invalid HEAD");
|
|
}
|
|
if (!strcmp(head_points_at, "HEAD"))
|
|
/* detached HEAD */
|
|
null_is_error = 1;
|
|
else if (!starts_with(head_points_at, "refs/heads/")) {
|
|
errors_found |= ERROR_REFS;
|
|
return error("HEAD points to something strange (%s)",
|
|
head_points_at);
|
|
}
|
|
if (is_null_oid(&head_oid)) {
|
|
if (null_is_error) {
|
|
errors_found |= ERROR_REFS;
|
|
return error("HEAD: detached HEAD points at nothing");
|
|
}
|
|
fprintf(stderr, "notice: HEAD points to an unborn branch (%s)\n",
|
|
head_points_at + 11);
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static int fsck_cache_tree(struct cache_tree *it)
|
|
{
|
|
int i;
|
|
int err = 0;
|
|
|
|
if (verbose)
|
|
fprintf(stderr, "Checking cache tree\n");
|
|
|
|
if (0 <= it->entry_count) {
|
|
struct object *obj = parse_object(it->sha1);
|
|
if (!obj) {
|
|
error("%s: invalid sha1 pointer in cache-tree",
|
|
sha1_to_hex(it->sha1));
|
|
errors_found |= ERROR_REFS;
|
|
return 1;
|
|
}
|
|
obj->used = 1;
|
|
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 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_END(),
|
|
};
|
|
|
|
int cmd_fsck(int argc, const char **argv, const char *prefix)
|
|
{
|
|
int i, heads;
|
|
struct alternate_object_database *alt;
|
|
|
|
errors_found = 0;
|
|
check_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;
|
|
}
|
|
|
|
git_config(fsck_config, NULL);
|
|
|
|
fsck_head_link();
|
|
if (!connectivity_only) {
|
|
fsck_object_dir(get_object_directory());
|
|
|
|
prepare_alt_odb();
|
|
for (alt = alt_odb_list; alt; alt = alt->next) {
|
|
/* directory name, minus trailing slash */
|
|
size_t namelen = alt->name - alt->base - 1;
|
|
struct strbuf name = STRBUF_INIT;
|
|
strbuf_add(&name, alt->base, namelen);
|
|
fsck_object_dir(name.buf);
|
|
strbuf_release(&name);
|
|
}
|
|
}
|
|
|
|
if (check_full) {
|
|
struct packed_git *p;
|
|
uint32_t total = 0, count = 0;
|
|
struct progress *progress = NULL;
|
|
|
|
prepare_packed_git();
|
|
|
|
if (show_progress) {
|
|
for (p = packed_git; p; p = p->next) {
|
|
if (open_pack_index(p))
|
|
continue;
|
|
total += p->num_objects;
|
|
}
|
|
|
|
progress = start_progress(_("Checking objects"), total);
|
|
}
|
|
for (p = packed_git; p; p = p->next) {
|
|
/* verify gives error messages itself */
|
|
if (verify_pack(p, fsck_obj_buffer,
|
|
progress, count))
|
|
errors_found |= ERROR_PACK;
|
|
count += p->num_objects;
|
|
}
|
|
stop_progress(&progress);
|
|
}
|
|
|
|
heads = 0;
|
|
for (i = 0; i < argc; i++) {
|
|
const char *arg = argv[i];
|
|
unsigned char sha1[20];
|
|
if (!get_sha1(arg, sha1)) {
|
|
struct object *obj = lookup_object(sha1);
|
|
|
|
/* Error is printed by lookup_object(). */
|
|
if (!obj)
|
|
continue;
|
|
|
|
obj->used = 1;
|
|
mark_object_reachable(obj);
|
|
heads++;
|
|
continue;
|
|
}
|
|
error("invalid parameter: expected sha1, got '%s'", arg);
|
|
}
|
|
|
|
/*
|
|
* 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 (!heads) {
|
|
get_default_heads();
|
|
keep_cache_objects = 1;
|
|
}
|
|
|
|
if (keep_cache_objects) {
|
|
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(active_cache[i]->sha1);
|
|
if (!blob)
|
|
continue;
|
|
obj = &blob->object;
|
|
obj->used = 1;
|
|
mark_object_reachable(obj);
|
|
}
|
|
if (active_cache_tree)
|
|
fsck_cache_tree(active_cache_tree);
|
|
}
|
|
|
|
check_connectivity();
|
|
return errors_found;
|
|
}
|