Re: [PATCH] Support working directory located at root

> @@ -25,7 +25,7 @@ const char *prefix_path(const char *prefix, int len,
> const char *path) len = strlen(work_tree);
>  		total = strlen(sanitized) + 1;
>  		if (strncmp(sanitized, work_tree, len) ||
> -		    (sanitized[len] != '\0' && sanitized[len] != '/')) {
> +		    (len > 1 && sanitized[len] != '\0' && sanitized[len] != '/')) {
>  		error_out:
>  			die("'%s' is outside repository", orig);
>  		}
> @@ -403,7 +403,7 @@ const char *setup_git_directory_gently(int *nongit_ok)
>  			if (!work_tree_env)
>  				inside_work_tree = 0;
>  			if (offset != len) {
> -				cwd[offset] = '\0';
> +				cwd[offset ? offset : 1] = '\0';
>  				set_git_dir(cwd);
>  			} else
>  				set_git_dir(".");
> @@ -427,6 +427,8 @@ const char *setup_git_directory_gently(int *nongit_ok)
>  	inside_git_dir = 0;
>  	if (!work_tree_env)
>  		inside_work_tree = 1;
> +	if (offset == 0) /* reached root, set worktree to '/' */
> +		offset = 1;
>  	git_work_tree_cfg = xstrndup(cwd, offset);
>  	if (check_repository_format_gently(nongit_ok))
>  		return NULL;