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-rw-r--r--third_party/git/builtin/fsck.c961
1 files changed, 0 insertions, 961 deletions
diff --git a/third_party/git/builtin/fsck.c b/third_party/git/builtin/fsck.c
deleted file mode 100644
index fbf26cafcfd7..000000000000
--- a/third_party/git/builtin/fsck.c
+++ /dev/null
@@ -1,961 +0,0 @@
-#define USE_THE_INDEX_COMPATIBILITY_MACROS
-#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
-#define ERROR_MULTI_PACK_INDEX 040
-
-static const char *describe_object(const struct object_id *oid)
-{
-	return fsck_describe_object(&fsck_walk_options, oid);
-}
-
-static const char *printable_type(const struct object_id *oid,
-				  enum object_type type)
-{
-	const char *ret;
-
-	if (type == OBJ_NONE)
-		type = oid_object_info(the_repository, oid, NULL);
-
-	ret = type_name(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->oid, obj->type),
-		   describe_object(&obj->oid), err);
-	return -1;
-}
-
-static int fsck_error_func(struct fsck_options *o,
-			   const struct object_id *oid,
-			   enum object_type object_type,
-			   int msg_type, const char *message)
-{
-	switch (msg_type) {
-	case FSCK_WARN:
-		/* TRANSLATORS: e.g. warning in tree 01bfda: <more explanation> */
-		fprintf_ln(stderr, _("warning in %s %s: %s"),
-			   printable_type(oid, object_type),
-			   describe_object(oid), 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(oid, object_type),
-			   describe_object(oid), message);
-		return 1;
-	default:
-		BUG("%d (FSCK_IGNORE?) should never trigger this callback",
-		    msg_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->oid, parent->type),
-			  describe_object(&parent->oid));
-		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(the_repository, &obj->oid, 1)) {
-			printf_ln(_("broken link from %7s %s\n"
-				    "              to %7s %s"),
-				  printable_type(&parent->oid, parent->type),
-				  describe_object(&parent->oid),
-				  printable_type(&obj->oid, obj->type),
-				  describe_object(&obj->oid));
-			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;
-}
-
-static void mark_unreachable_referents(const struct object_id *oid)
-{
-	struct fsck_options options = FSCK_OPTIONS_DEFAULT;
-	struct object *obj = lookup_object(the_repository, oid);
-
-	if (!obj || !(obj->flags & HAS_OBJ))
-		return; /* not part of our original set */
-	if (obj->flags & REACHABLE)
-		return; /* reachable objects already traversed */
-
-	/*
-	 * Avoid passing OBJ_NONE to fsck_walk, which will parse the object
-	 * (and we want to avoid parsing blobs).
-	 */
-	if (obj->type == OBJ_NONE) {
-		enum object_type type = oid_object_info(the_repository,
-							&obj->oid, NULL);
-		if (type > 0)
-			object_as_type(obj, type, 0);
-	}
-
-	options.walk = mark_used;
-	fsck_walk(obj, NULL, &options);
-}
-
-static int mark_loose_unreachable_referents(const struct object_id *oid,
-					    const char *path,
-					    void *data)
-{
-	mark_unreachable_referents(oid);
-	return 0;
-}
-
-static int mark_packed_unreachable_referents(const struct object_id *oid,
-					     struct packed_git *pack,
-					     uint32_t pos,
-					     void *data)
-{
-	mark_unreachable_referents(oid);
-	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->oid, obj->type),
-			  describe_object(&obj->oid));
-		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->oid, obj->type),
-			  describe_object(&obj->oid));
-		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->oid, obj->type),
-				  describe_object(&obj->oid));
-		if (write_lost_and_found) {
-			char *filename = git_pathdup("lost-found/%s/%s",
-				obj->type == OBJ_COMMIT ? "commit" : "other",
-				describe_object(&obj->oid));
-			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->oid));
-			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->oid));
-
-	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();
-
-	/*
-	 * With --connectivity-only, we won't have actually opened and marked
-	 * unreachable objects with USED. Do that now to make --dangling, etc
-	 * accurate.
-	 */
-	if (connectivity_only && (show_dangling || write_lost_and_found)) {
-		/*
-		 * Even though we already have a "struct object" for each of
-		 * these in memory, we must not iterate over the internal
-		 * object hash as we do below. Our loop would potentially
-		 * resize the hash, making our iteration invalid.
-		 *
-		 * Instead, we'll just go back to the source list of objects,
-		 * and ignore any that weren't present in our earlier
-		 * traversal.
-		 */
-		for_each_loose_object(mark_loose_unreachable_referents, NULL, 0);
-		for_each_packed_object(mark_packed_unreachable_referents, NULL, 0);
-	}
-
-	/* 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->oid, obj->type),
-			   describe_object(&obj->oid));
-
-	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.oid));
-	}
-
-	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->oid, tag->tagged->type),
-				  describe_object(&tag->tagged->oid),
-				  tag->tag,
-				  describe_object(&tag->object.oid));
-		}
-	}
-
-out:
-	if (obj->type == OBJ_TREE)
-		free_tree_buffer((struct tree *)obj);
-	if (obj->type == OBJ_COMMIT)
-		free_commit_buffer(the_repository->parsed_objects,
-				   (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);
-		if (obj && (obj->flags & HAS_OBJ)) {
-			if (timestamp)
-				fsck_put_object_name(&fsck_walk_options, oid,
-						     "%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;
-	fsck_put_object_name(&fsck_walk_options,
-			     oid, "%s", 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();
-	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;
-		fsck_put_object_name(&fsck_walk_options, &it->oid, ":");
-		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);
-	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_enable_object_names(&fsck_walk_options);
-
-	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);
-
-			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;
-			fsck_put_object_name(&fsck_walk_options, &oid,
-					     "%s", 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;
-			fsck_put_object_name(&fsck_walk_options, &obj->oid,
-					     ":%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_MULTI_PACK_INDEX;
-		}
-	}
-
-	return errors_found;
-}