aboutsummaryrefslogtreecommitdiffstats
path: root/builtin/fsck.c
diff options
context:
space:
mode:
Diffstat (limited to 'builtin/fsck.c')
-rw-r--r--builtin/fsck.c819
1 files changed, 819 insertions, 0 deletions
diff --git a/builtin/fsck.c b/builtin/fsck.c
new file mode 100644
index 0000000000..9981db2263
--- /dev/null
+++ b/builtin/fsck.c
@@ -0,0 +1,819 @@
+#include "builtin.h"
+#include "cache.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"
+
+#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 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;
+static int name_objects;
+#define ERROR_OBJECT 01
+#define ERROR_REACHABLE 02
+#define ERROR_PACK 04
+#define ERROR_REFS 010
+
+static const char *describe_object(struct object *obj)
+{
+ static struct strbuf buf = STRBUF_INIT;
+ char *name = name_objects ?
+ lookup_decoration(fsck_walk_options.object_names, obj) : NULL;
+
+ 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 = sha1_object_info(obj->oid.hash, NULL);
+ if (type > 0)
+ object_as_type(obj, type, 0);
+ }
+
+ ret = typename(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 void objreport(struct object *obj, const char *msg_type,
+ const char *err)
+{
+ fprintf(stderr, "%s in %s %s: %s\n",
+ msg_type, printable_type(obj), 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",
+ printable_type(parent), 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 (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("broken link from %7s %s\n",
+ printable_type(parent), describe_object(parent));
+ printf(" to %7s %s\n",
+ 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_sha1_pack(obj->oid.hash))
+ return; /* it is in pack - forget about it */
+ printf("missing %s %s\n", 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("unreachable %s %s\n", 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("dangling %s %s\n", 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(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)
+{
+ int err;
+
+ if (obj->flags & SEEN)
+ return 0;
+ obj->flags |= SEEN;
+
+ if (verbose)
+ fprintf(stderr, "Checking %s %s\n",
+ printable_type(obj), describe_object(obj));
+
+ if (fsck_walk(obj, NULL, &fsck_obj_options))
+ objerror(obj, "broken links");
+ err = fsck_object(obj, NULL, 0, &fsck_obj_options);
+ if (err)
+ goto out;
+
+ if (obj->type == OBJ_COMMIT) {
+ struct commit *commit = (struct commit *) obj;
+
+ 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", printable_type(tag->tagged),
+ describe_object(tag->tagged));
+ printf(" (%s) in %s\n", 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(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);
+}
+
+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(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(stderr, "Checking reflog %s->%s\n",
+ 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)
+{
+ 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);
+ 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 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 struct object *parse_loose_object(const struct object_id *oid,
+ const char *path)
+{
+ struct object *obj;
+ void *contents;
+ enum object_type type;
+ unsigned long size;
+ int eaten;
+
+ if (read_loose_object(path, oid->hash, &type, &size, &contents) < 0)
+ return NULL;
+
+ if (!contents && type != OBJ_BLOB)
+ die("BUG: read_loose_object streamed a non-blob");
+
+ obj = parse_object_buffer(oid, type, size, contents, &eaten);
+
+ if (!eaten)
+ free(contents);
+ return obj;
+}
+
+static int fsck_loose(const struct object_id *oid, const char *path, void *data)
+{
+ struct object *obj = parse_loose_object(oid, path);
+
+ if (!obj) {
+ errors_found |= ERROR_OBJECT;
+ error("%s: object corrupt or missing: %s",
+ oid_to_hex(oid), path);
+ return 0; /* keep checking other objects */
+ }
+
+ obj->flags &= ~(REACHABLE | SEEN);
+ obj->flags |= HAS_OBJ;
+ if (fsck_obj(obj))
+ 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(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(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, 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->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 alternate_object_database *alt;
+
+ /* fsck knows how to handle missing promisor objects */
+ fetch_if_missing = 0;
+
+ 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;
+ }
+
+ if (name_objects)
+ fsck_walk_options.object_names =
+ xcalloc(1, sizeof(struct decoration));
+
+ git_config(fsck_config, NULL);
+
+ fsck_head_link();
+ if (connectivity_only) {
+ for_each_loose_object(mark_loose_for_connectivity, NULL, 0);
+ for_each_packed_object(mark_packed_for_connectivity, NULL, 0);
+ } else {
+ fsck_object_dir(get_object_directory());
+
+ prepare_alt_odb();
+ for (alt = alt_odb_list; alt; alt = alt->next)
+ fsck_object_dir(alt->path);
+
+ 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);
+ }
+ }
+
+ 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(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(&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();
+ return errors_found;
+}
generated by cgit v1.2.3 (git 2.39.1) at 2025-12-13 15:50:25 +0000