chore(3p/git): Unvendor git and track patches instead r/2903

This was vendored a long time ago under the expectation that keeping
it in sync with cgit would be easier this way, but it has proven not
to be a big issue.

On the other hand, a vendored copy of git is an annoying maintenance
burden. It is much easier to rebase the single (dottime) patch that we
have.

This removes the vendored copy of git and instead passes the git
source code to cgit via `pkgs.srcOnly`, which includes the applied
patch so that cgit can continue rendering dottime.

Change-Id: If31f62dea7ce688fd1b9050204e9378019775f2b

1 files changed, 0 insertions, 705 deletions

diff --git a/third_party/git/builtin/init-db.c b/third_party/git/builtin/init-db.c
deleted file mode 100644
index 01bc648d416f..000000000000
--- a/third_party/git/builtin/init-db.c
+++ /dev/null
@@ -1,705 +0,0 @@
-/*
- * GIT - The information manager from hell
- *
- * Copyright (C) Linus Torvalds, 2005
- */
-#include "cache.h"
-#include "config.h"
-#include "refs.h"
-#include "builtin.h"
-#include "exec-cmd.h"
-#include "parse-options.h"
-#include "worktree.h"
-
-#ifndef DEFAULT_GIT_TEMPLATE_DIR
-#define DEFAULT_GIT_TEMPLATE_DIR "/usr/share/git-core/templates"
-#endif
-
-#ifdef NO_TRUSTABLE_FILEMODE
-#define TEST_FILEMODE 0
-#else
-#define TEST_FILEMODE 1
-#endif
-
-#define GIT_DEFAULT_HASH_ENVIRONMENT "GIT_DEFAULT_HASH"
-
-static int init_is_bare_repository = 0;
-static int init_shared_repository = -1;
-static const char *init_db_template_dir;
-
-static void copy_templates_1(struct strbuf *path, struct strbuf *template_path,
-			     DIR *dir)
-{
-	size_t path_baselen = path->len;
-	size_t template_baselen = template_path->len;
-	struct dirent *de;
-
-	/* Note: if ".git/hooks" file exists in the repository being
-	 * re-initialized, /etc/core-git/templates/hooks/update would
-	 * cause "git init" to fail here.  I think this is sane but
-	 * it means that the set of templates we ship by default, along
-	 * with the way the namespace under .git/ is organized, should
-	 * be really carefully chosen.
-	 */
-	safe_create_dir(path->buf, 1);
-	while ((de = readdir(dir)) != NULL) {
-		struct stat st_git, st_template;
-		int exists = 0;
-
-		strbuf_setlen(path, path_baselen);
-		strbuf_setlen(template_path, template_baselen);
-
-		if (de->d_name[0] == '.')
-			continue;
-		strbuf_addstr(path, de->d_name);
-		strbuf_addstr(template_path, de->d_name);
-		if (lstat(path->buf, &st_git)) {
-			if (errno != ENOENT)
-				die_errno(_("cannot stat '%s'"), path->buf);
-		}
-		else
-			exists = 1;
-
-		if (lstat(template_path->buf, &st_template))
-			die_errno(_("cannot stat template '%s'"), template_path->buf);
-
-		if (S_ISDIR(st_template.st_mode)) {
-			DIR *subdir = opendir(template_path->buf);
-			if (!subdir)
-				die_errno(_("cannot opendir '%s'"), template_path->buf);
-			strbuf_addch(path, '/');
-			strbuf_addch(template_path, '/');
-			copy_templates_1(path, template_path, subdir);
-			closedir(subdir);
-		}
-		else if (exists)
-			continue;
-		else if (S_ISLNK(st_template.st_mode)) {
-			struct strbuf lnk = STRBUF_INIT;
-			if (strbuf_readlink(&lnk, template_path->buf,
-					    st_template.st_size) < 0)
-				die_errno(_("cannot readlink '%s'"), template_path->buf);
-			if (symlink(lnk.buf, path->buf))
-				die_errno(_("cannot symlink '%s' '%s'"),
-					  lnk.buf, path->buf);
-			strbuf_release(&lnk);
-		}
-		else if (S_ISREG(st_template.st_mode)) {
-			if (copy_file(path->buf, template_path->buf, st_template.st_mode))
-				die_errno(_("cannot copy '%s' to '%s'"),
-					  template_path->buf, path->buf);
-		}
-		else
-			error(_("ignoring template %s"), template_path->buf);
-	}
-}
-
-static void copy_templates(const char *template_dir)
-{
-	struct strbuf path = STRBUF_INIT;
-	struct strbuf template_path = STRBUF_INIT;
-	size_t template_len;
-	struct repository_format template_format = REPOSITORY_FORMAT_INIT;
-	struct strbuf err = STRBUF_INIT;
-	DIR *dir;
-	char *to_free = NULL;
-
-	if (!template_dir)
-		template_dir = getenv(TEMPLATE_DIR_ENVIRONMENT);
-	if (!template_dir)
-		template_dir = init_db_template_dir;
-	if (!template_dir)
-		template_dir = to_free = system_path(DEFAULT_GIT_TEMPLATE_DIR);
-	if (!template_dir[0]) {
-		free(to_free);
-		return;
-	}
-
-	strbuf_addstr(&template_path, template_dir);
-	strbuf_complete(&template_path, '/');
-	template_len = template_path.len;
-
-	dir = opendir(template_path.buf);
-	if (!dir) {
-		warning(_("templates not found in %s"), template_dir);
-		goto free_return;
-	}
-
-	/* Make sure that template is from the correct vintage */
-	strbuf_addstr(&template_path, "config");
-	read_repository_format(&template_format, template_path.buf);
-	strbuf_setlen(&template_path, template_len);
-
-	/*
-	 * No mention of version at all is OK, but anything else should be
-	 * verified.
-	 */
-	if (template_format.version >= 0 &&
-	    verify_repository_format(&template_format, &err) < 0) {
-		warning(_("not copying templates from '%s': %s"),
-			  template_dir, err.buf);
-		strbuf_release(&err);
-		goto close_free_return;
-	}
-
-	strbuf_addstr(&path, get_git_common_dir());
-	strbuf_complete(&path, '/');
-	copy_templates_1(&path, &template_path, dir);
-close_free_return:
-	closedir(dir);
-free_return:
-	free(to_free);
-	strbuf_release(&path);
-	strbuf_release(&template_path);
-	clear_repository_format(&template_format);
-}
-
-static int git_init_db_config(const char *k, const char *v, void *cb)
-{
-	if (!strcmp(k, "init.templatedir"))
-		return git_config_pathname(&init_db_template_dir, k, v);
-
-	if (starts_with(k, "core."))
-		return platform_core_config(k, v, cb);
-
-	return 0;
-}
-
-/*
- * If the git_dir is not directly inside the working tree, then git will not
- * find it by default, and we need to set the worktree explicitly.
- */
-static int needs_work_tree_config(const char *git_dir, const char *work_tree)
-{
-	if (!strcmp(work_tree, "/") && !strcmp(git_dir, "/.git"))
-		return 0;
-	if (skip_prefix(git_dir, work_tree, &git_dir) &&
-	    !strcmp(git_dir, "/.git"))
-		return 0;
-	return 1;
-}
-
-void initialize_repository_version(int hash_algo, int reinit)
-{
-	char repo_version_string[10];
-	int repo_version = GIT_REPO_VERSION;
-
-	if (hash_algo != GIT_HASH_SHA1)
-		repo_version = GIT_REPO_VERSION_READ;
-
-	/* This forces creation of new config file */
-	xsnprintf(repo_version_string, sizeof(repo_version_string),
-		  "%d", repo_version);
-	git_config_set("core.repositoryformatversion", repo_version_string);
-
-	if (hash_algo != GIT_HASH_SHA1)
-		git_config_set("extensions.objectformat",
-			       hash_algos[hash_algo].name);
-	else if (reinit)
-		git_config_set_gently("extensions.objectformat", NULL);
-}
-
-static int create_default_files(const char *template_path,
-				const char *original_git_dir,
-				const char *initial_branch,
-				const struct repository_format *fmt)
-{
-	struct stat st1;
-	struct strbuf buf = STRBUF_INIT;
-	char *path;
-	char junk[2];
-	int reinit;
-	int filemode;
-	struct strbuf err = STRBUF_INIT;
-
-	/* Just look for `init.templatedir` */
-	init_db_template_dir = NULL; /* re-set in case it was set before */
-	git_config(git_init_db_config, NULL);
-
-	/*
-	 * First copy the templates -- we might have the default
-	 * config file there, in which case we would want to read
-	 * from it after installing.
-	 *
-	 * Before reading that config, we also need to clear out any cached
-	 * values (since we've just potentially changed what's available on
-	 * disk).
-	 */
-	copy_templates(template_path);
-	git_config_clear();
-	reset_shared_repository();
-	git_config(git_default_config, NULL);
-
-	/*
-	 * We must make sure command-line options continue to override any
-	 * values we might have just re-read from the config.
-	 */
-	is_bare_repository_cfg = init_is_bare_repository;
-	if (init_shared_repository != -1)
-		set_shared_repository(init_shared_repository);
-
-	/*
-	 * We would have created the above under user's umask -- under
-	 * shared-repository settings, we would need to fix them up.
-	 */
-	if (get_shared_repository()) {
-		adjust_shared_perm(get_git_dir());
-	}
-
-	/*
-	 * We need to create a "refs" dir in any case so that older
-	 * versions of git can tell that this is a repository.
-	 */
-	safe_create_dir(git_path("refs"), 1);
-	adjust_shared_perm(git_path("refs"));
-
-	if (refs_init_db(&err))
-		die("failed to set up refs db: %s", err.buf);
-
-	/*
-	 * Point the HEAD symref to the initial branch with if HEAD does
-	 * not yet exist.
-	 */
-	path = git_path_buf(&buf, "HEAD");
-	reinit = (!access(path, R_OK)
-		  || readlink(path, junk, sizeof(junk)-1) != -1);
-	if (!reinit) {
-		char *ref;
-
-		if (!initial_branch)
-			initial_branch = git_default_branch_name();
-
-		ref = xstrfmt("refs/heads/%s", initial_branch);
-		if (check_refname_format(ref, 0) < 0)
-			die(_("invalid initial branch name: '%s'"),
-			    initial_branch);
-
-		if (create_symref("HEAD", ref, NULL) < 0)
-			exit(1);
-		free(ref);
-	}
-
-	initialize_repository_version(fmt->hash_algo, 0);
-
-	/* Check filemode trustability */
-	path = git_path_buf(&buf, "config");
-	filemode = TEST_FILEMODE;
-	if (TEST_FILEMODE && !lstat(path, &st1)) {
-		struct stat st2;
-		filemode = (!chmod(path, st1.st_mode ^ S_IXUSR) &&
-				!lstat(path, &st2) &&
-				st1.st_mode != st2.st_mode &&
-				!chmod(path, st1.st_mode));
-		if (filemode && !reinit && (st1.st_mode & S_IXUSR))
-			filemode = 0;
-	}
-	git_config_set("core.filemode", filemode ? "true" : "false");
-
-	if (is_bare_repository())
-		git_config_set("core.bare", "true");
-	else {
-		const char *work_tree = get_git_work_tree();
-		git_config_set("core.bare", "false");
-		/* allow template config file to override the default */
-		if (log_all_ref_updates == LOG_REFS_UNSET)
-			git_config_set("core.logallrefupdates", "true");
-		if (needs_work_tree_config(original_git_dir, work_tree))
-			git_config_set("core.worktree", work_tree);
-	}
-
-	if (!reinit) {
-		/* Check if symlink is supported in the work tree */
-		path = git_path_buf(&buf, "tXXXXXX");
-		if (!close(xmkstemp(path)) &&
-		    !unlink(path) &&
-		    !symlink("testing", path) &&
-		    !lstat(path, &st1) &&
-		    S_ISLNK(st1.st_mode))
-			unlink(path); /* good */
-		else
-			git_config_set("core.symlinks", "false");
-
-		/* Check if the filesystem is case-insensitive */
-		path = git_path_buf(&buf, "CoNfIg");
-		if (!access(path, F_OK))
-			git_config_set("core.ignorecase", "true");
-		probe_utf8_pathname_composition();
-	}
-
-	strbuf_release(&buf);
-	return reinit;
-}
-
-static void create_object_directory(void)
-{
-	struct strbuf path = STRBUF_INIT;
-	size_t baselen;
-
-	strbuf_addstr(&path, get_object_directory());
-	baselen = path.len;
-
-	safe_create_dir(path.buf, 1);
-
-	strbuf_setlen(&path, baselen);
-	strbuf_addstr(&path, "/pack");
-	safe_create_dir(path.buf, 1);
-
-	strbuf_setlen(&path, baselen);
-	strbuf_addstr(&path, "/info");
-	safe_create_dir(path.buf, 1);
-
-	strbuf_release(&path);
-}
-
-static void separate_git_dir(const char *git_dir, const char *git_link)
-{
-	struct stat st;
-
-	if (!stat(git_link, &st)) {
-		const char *src;
-
-		if (S_ISREG(st.st_mode))
-			src = read_gitfile(git_link);
-		else if (S_ISDIR(st.st_mode))
-			src = git_link;
-		else
-			die(_("unable to handle file type %d"), (int)st.st_mode);
-
-		if (rename(src, git_dir))
-			die_errno(_("unable to move %s to %s"), src, git_dir);
-		repair_worktrees(NULL, NULL);
-	}
-
-	write_file(git_link, "gitdir: %s", git_dir);
-}
-
-static void validate_hash_algorithm(struct repository_format *repo_fmt, int hash)
-{
-	const char *env = getenv(GIT_DEFAULT_HASH_ENVIRONMENT);
-	/*
-	 * If we already have an initialized repo, don't allow the user to
-	 * specify a different algorithm, as that could cause corruption.
-	 * Otherwise, if the user has specified one on the command line, use it.
-	 */
-	if (repo_fmt->version >= 0 && hash != GIT_HASH_UNKNOWN && hash != repo_fmt->hash_algo)
-		die(_("attempt to reinitialize repository with different hash"));
-	else if (hash != GIT_HASH_UNKNOWN)
-		repo_fmt->hash_algo = hash;
-	else if (env) {
-		int env_algo = hash_algo_by_name(env);
-		if (env_algo == GIT_HASH_UNKNOWN)
-			die(_("unknown hash algorithm '%s'"), env);
-		repo_fmt->hash_algo = env_algo;
-	}
-}
-
-int init_db(const char *git_dir, const char *real_git_dir,
-	    const char *template_dir, int hash, const char *initial_branch,
-	    unsigned int flags)
-{
-	int reinit;
-	int exist_ok = flags & INIT_DB_EXIST_OK;
-	char *original_git_dir = real_pathdup(git_dir, 1);
-	struct repository_format repo_fmt = REPOSITORY_FORMAT_INIT;
-
-	if (real_git_dir) {
-		struct stat st;
-
-		if (!exist_ok && !stat(git_dir, &st))
-			die(_("%s already exists"), git_dir);
-
-		if (!exist_ok && !stat(real_git_dir, &st))
-			die(_("%s already exists"), real_git_dir);
-
-		set_git_dir(real_git_dir, 1);
-		git_dir = get_git_dir();
-		separate_git_dir(git_dir, original_git_dir);
-	}
-	else {
-		set_git_dir(git_dir, 1);
-		git_dir = get_git_dir();
-	}
-	startup_info->have_repository = 1;
-
-	/* Just look for `core.hidedotfiles` */
-	git_config(git_init_db_config, NULL);
-
-	safe_create_dir(git_dir, 0);
-
-	init_is_bare_repository = is_bare_repository();
-
-	/* Check to see if the repository version is right.
-	 * Note that a newly created repository does not have
-	 * config file, so this will not fail.  What we are catching
-	 * is an attempt to reinitialize new repository with an old tool.
-	 */
-	check_repository_format(&repo_fmt);
-
-	validate_hash_algorithm(&repo_fmt, hash);
-
-	reinit = create_default_files(template_dir, original_git_dir,
-				      initial_branch, &repo_fmt);
-	if (reinit && initial_branch)
-		warning(_("re-init: ignored --initial-branch=%s"),
-			initial_branch);
-
-	create_object_directory();
-
-	if (get_shared_repository()) {
-		char buf[10];
-		/* We do not spell "group" and such, so that
-		 * the configuration can be read by older version
-		 * of git. Note, we use octal numbers for new share modes,
-		 * and compatibility values for PERM_GROUP and
-		 * PERM_EVERYBODY.
-		 */
-		if (get_shared_repository() < 0)
-			/* force to the mode value */
-			xsnprintf(buf, sizeof(buf), "0%o", -get_shared_repository());
-		else if (get_shared_repository() == PERM_GROUP)
-			xsnprintf(buf, sizeof(buf), "%d", OLD_PERM_GROUP);
-		else if (get_shared_repository() == PERM_EVERYBODY)
-			xsnprintf(buf, sizeof(buf), "%d", OLD_PERM_EVERYBODY);
-		else
-			BUG("invalid value for shared_repository");
-		git_config_set("core.sharedrepository", buf);
-		git_config_set("receive.denyNonFastforwards", "true");
-	}
-
-	if (!(flags & INIT_DB_QUIET)) {
-		int len = strlen(git_dir);
-
-		if (reinit)
-			printf(get_shared_repository()
-			       ? _("Reinitialized existing shared Git repository in %s%s\n")
-			       : _("Reinitialized existing Git repository in %s%s\n"),
-			       git_dir, len && git_dir[len-1] != '/' ? "/" : "");
-		else
-			printf(get_shared_repository()
-			       ? _("Initialized empty shared Git repository in %s%s\n")
-			       : _("Initialized empty Git repository in %s%s\n"),
-			       git_dir, len && git_dir[len-1] != '/' ? "/" : "");
-	}
-
-	free(original_git_dir);
-	return 0;
-}
-
-static int guess_repository_type(const char *git_dir)
-{
-	const char *slash;
-	char *cwd;
-	int cwd_is_git_dir;
-
-	/*
-	 * "GIT_DIR=. git init" is always bare.
-	 * "GIT_DIR=`pwd` git init" too.
-	 */
-	if (!strcmp(".", git_dir))
-		return 1;
-	cwd = xgetcwd();
-	cwd_is_git_dir = !strcmp(git_dir, cwd);
-	free(cwd);
-	if (cwd_is_git_dir)
-		return 1;
-	/*
-	 * "GIT_DIR=.git or GIT_DIR=something/.git is usually not.
-	 */
-	if (!strcmp(git_dir, ".git"))
-		return 0;
-	slash = strrchr(git_dir, '/');
-	if (slash && !strcmp(slash, "/.git"))
-		return 0;
-
-	/*
-	 * Otherwise it is often bare.  At this point
-	 * we are just guessing.
-	 */
-	return 1;
-}
-
-static int shared_callback(const struct option *opt, const char *arg, int unset)
-{
-	BUG_ON_OPT_NEG(unset);
-	*((int *) opt->value) = (arg) ? git_config_perm("arg", arg) : PERM_GROUP;
-	return 0;
-}
-
-static const char *const init_db_usage[] = {
-	N_("git init [-q | --quiet] [--bare] [--template=<template-directory>] [--shared[=<permissions>]] [<directory>]"),
-	NULL
-};
-
-/*
- * If you want to, you can share the DB area with any number of branches.
- * That has advantages: you can save space by sharing all the SHA1 objects.
- * On the other hand, it might just make lookup slower and messier. You
- * be the judge.  The default case is to have one DB per managed directory.
- */
-int cmd_init_db(int argc, const char **argv, const char *prefix)
-{
-	const char *git_dir;
-	const char *real_git_dir = NULL;
-	const char *work_tree;
-	const char *template_dir = NULL;
-	unsigned int flags = 0;
-	const char *object_format = NULL;
-	const char *initial_branch = NULL;
-	int hash_algo = GIT_HASH_UNKNOWN;
-	const struct option init_db_options[] = {
-		OPT_STRING(0, "template", &template_dir, N_("template-directory"),
-				N_("directory from which templates will be used")),
-		OPT_SET_INT(0, "bare", &is_bare_repository_cfg,
-				N_("create a bare repository"), 1),
-		{ OPTION_CALLBACK, 0, "shared", &init_shared_repository,
-			N_("permissions"),
-			N_("specify that the git repository is to be shared amongst several users"),
-			PARSE_OPT_OPTARG | PARSE_OPT_NONEG, shared_callback, 0},
-		OPT_BIT('q', "quiet", &flags, N_("be quiet"), INIT_DB_QUIET),
-		OPT_STRING(0, "separate-git-dir", &real_git_dir, N_("gitdir"),
-			   N_("separate git dir from working tree")),
-		OPT_STRING('b', "initial-branch", &initial_branch, N_("name"),
-			   N_("override the name of the initial branch")),
-		OPT_STRING(0, "object-format", &object_format, N_("hash"),
-			   N_("specify the hash algorithm to use")),
-		OPT_END()
-	};
-
-	argc = parse_options(argc, argv, prefix, init_db_options, init_db_usage, 0);
-
-	if (real_git_dir && is_bare_repository_cfg == 1)
-		die(_("--separate-git-dir and --bare are mutually exclusive"));
-
-	if (real_git_dir && !is_absolute_path(real_git_dir))
-		real_git_dir = real_pathdup(real_git_dir, 1);
-
-	if (template_dir && *template_dir && !is_absolute_path(template_dir))
-		template_dir = absolute_pathdup(template_dir);
-
-	if (argc == 1) {
-		int mkdir_tried = 0;
-	retry:
-		if (chdir(argv[0]) < 0) {
-			if (!mkdir_tried) {
-				int saved;
-				/*
-				 * At this point we haven't read any configuration,
-				 * and we know shared_repository should always be 0;
-				 * but just in case we play safe.
-				 */
-				saved = get_shared_repository();
-				set_shared_repository(0);
-				switch (safe_create_leading_directories_const(argv[0])) {
-				case SCLD_OK:
-				case SCLD_PERMS:
-					break;
-				case SCLD_EXISTS:
-					errno = EEXIST;
-					/* fallthru */
-				default:
-					die_errno(_("cannot mkdir %s"), argv[0]);
-					break;
-				}
-				set_shared_repository(saved);
-				if (mkdir(argv[0], 0777) < 0)
-					die_errno(_("cannot mkdir %s"), argv[0]);
-				mkdir_tried = 1;
-				goto retry;
-			}
-			die_errno(_("cannot chdir to %s"), argv[0]);
-		}
-	} else if (0 < argc) {
-		usage(init_db_usage[0]);
-	}
-	if (is_bare_repository_cfg == 1) {
-		char *cwd = xgetcwd();
-		setenv(GIT_DIR_ENVIRONMENT, cwd, argc > 0);
-		free(cwd);
-	}
-
-	if (object_format) {
-		hash_algo = hash_algo_by_name(object_format);
-		if (hash_algo == GIT_HASH_UNKNOWN)
-			die(_("unknown hash algorithm '%s'"), object_format);
-	}
-
-	if (init_shared_repository != -1)
-		set_shared_repository(init_shared_repository);
-
-	/*
-	 * GIT_WORK_TREE makes sense only in conjunction with GIT_DIR
-	 * without --bare.  Catch the error early.
-	 */
-	git_dir = xstrdup_or_null(getenv(GIT_DIR_ENVIRONMENT));
-	work_tree = xstrdup_or_null(getenv(GIT_WORK_TREE_ENVIRONMENT));
-	if ((!git_dir || is_bare_repository_cfg == 1) && work_tree)
-		die(_("%s (or --work-tree=<directory>) not allowed without "
-			  "specifying %s (or --git-dir=<directory>)"),
-		    GIT_WORK_TREE_ENVIRONMENT,
-		    GIT_DIR_ENVIRONMENT);
-
-	/*
-	 * Set up the default .git directory contents
-	 */
-	if (!git_dir)
-		git_dir = DEFAULT_GIT_DIR_ENVIRONMENT;
-
-	/*
-	 * When --separate-git-dir is used inside a linked worktree, take
-	 * care to ensure that the common .git/ directory is relocated, not
-	 * the worktree-specific .git/worktrees/<id>/ directory.
-	 */
-	if (real_git_dir) {
-		int err;
-		const char *p;
-		struct strbuf sb = STRBUF_INIT;
-
-		p = read_gitfile_gently(git_dir, &err);
-		if (p && get_common_dir(&sb, p)) {
-			struct strbuf mainwt = STRBUF_INIT;
-
-			strbuf_addbuf(&mainwt, &sb);
-			strbuf_strip_suffix(&mainwt, "/.git");
-			if (chdir(mainwt.buf) < 0)
-				die_errno(_("cannot chdir to %s"), mainwt.buf);
-			strbuf_release(&mainwt);
-			git_dir = strbuf_detach(&sb, NULL);
-		}
-		strbuf_release(&sb);
-	}
-
-	if (is_bare_repository_cfg < 0)
-		is_bare_repository_cfg = guess_repository_type(git_dir);
-
-	if (!is_bare_repository_cfg) {
-		const char *git_dir_parent = strrchr(git_dir, '/');
-		if (git_dir_parent) {
-			char *rel = xstrndup(git_dir, git_dir_parent - git_dir);
-			git_work_tree_cfg = real_pathdup(rel, 1);
-			free(rel);
-		}
-		if (!git_work_tree_cfg)
-			git_work_tree_cfg = xgetcwd();
-		if (work_tree)
-			set_git_work_tree(work_tree);
-		else
-			set_git_work_tree(git_work_tree_cfg);
-		if (access(get_git_work_tree(), X_OK))
-			die_errno (_("Cannot access work tree '%s'"),
-				   get_git_work_tree());
-	}
-	else {
-		if (real_git_dir)
-			die(_("--separate-git-dir incompatible with bare repository"));
-		if (work_tree)
-			set_git_work_tree(work_tree);
-	}
-
-	UNLEAK(real_git_dir);
-	UNLEAK(git_dir);
-	UNLEAK(work_tree);
-
-	flags |= INIT_DB_EXIST_OK;
-	return init_db(git_dir, real_git_dir, template_dir, hash_algo,
-		       initial_branch, flags);
-}