Re: [PATCH] worktree remove: clarify error message on dirty worktree

[Eric Sunshine <sunshine@sunshineco.com>]

On Tue, Aug 13, 2019 at 2:04 PM SZEDER Gábor <szeder.dev@gmail.com> wrote:
> To avoid data loss, 'git worktree remove' refuses to delete a worktree
> if it's dirty or contains untracked files.  However, the error message
> only mentions that the worktree "is dirty", even if the worktree in
> question is in fact clean, but contains untracked files:
> [...]
> Clarify this error message to say that the worktree "contains modified
> or untracked files".
>
> Signed-off-by: SZEDER Gábor <szeder.dev@gmail.com>
> ---
> diff --git a/builtin/worktree.c b/builtin/worktree.c
> @@ -880,7 +880,7 @@ static void check_clean_worktree(struct worktree *wt,
>         ret = xread(cp.out, buf, sizeof(buf));
>         if (ret)
> -               die(_("'%s' is dirty, use --force to delete it"),
> +               die(_("'%s' contains modified or untracked files, use --force to delete it"),
>                     original_path);

Makes sense. This is a different type of "dirtiness" than, say, "git
rebase --interactive" which cares about unstaged changes but generally
doesn't mind untracked files. So, it deserves an error message which
mentions untracked files explicitly.

We could actually parse the output of "git status --porcelain" (which
is invoked just above this spot) and provide a more specific error
message ("...contains modified files" or "...contains untracked
files") but that's probably not worth the effort.

Anyhow, for what it's worth:
Reviewed-by: Eric Sunshine <sunshine@sunshineco.com>