Re: [PATCH 2/5] worktree.c: add is_main_worktree()

> Main worktree _is_ different. You can lock a linked worktree but not the
> main one, for example. Provide an API for checking that.
>
> Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
> ---
> diff --git a/worktree.c b/worktree.c
> @@ -238,6 +238,11 @@ struct worktree *find_worktree_by_path(struct worktree **list,
> +int is_main_worktree(const struct worktree *wt)
> +{
> +       return wt && !wt->id;
> +}