Function init_db

setup.c:2812–2909

}

int init_db(struct repository *repo,
	    const char *git_dir, const char *real_git_dir,
	    const char *template_dir, int hash,
	    enum ref_storage_format ref_storage_format,
	    const char *initial_branch,
	    int init_shared_repository, 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(repo, real_git_dir, 1);
		git_dir = repo_get_git_dir(repo);
		separate_git_dir(git_dir, original_git_dir);
	}
	else {
		set_git_dir(repo, git_dir, 1);
		git_dir = repo_get_git_dir(repo);
	}
	startup_info->have_repository = 1;

	/*
	 * 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_and_apply_repository_format(repo, &repo_fmt,
					  APPLY_REPOSITORY_FORMAT_HONOR_ENV);

	repository_format_configure(repo, &repo_fmt, hash, ref_storage_format);

	/*
	 * Ensure `core.hidedotfiles` is processed. This must happen after we
	 * have set up the repository format such that we can evaluate
	 * includeIf conditions correctly in the case of re-initialization.
	 */
	repo_config(repo, git_default_core_config, NULL);

	safe_create_dir(repo, git_dir, 0);

	reinit = create_default_files(repo, template_dir, original_git_dir,
				      &repo_fmt, init_shared_repository);

	if (!(flags & INIT_DB_SKIP_REFDB))
		create_reference_database(repo, initial_branch, flags & INIT_DB_QUIET);
	create_object_directory(repo);