Re: [PATCH 1/2] t7422: replace confusing printf with echo

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On Mon, Jun 23, 2025 at 6:57 AM Jeff King <peff@xxxxxxxx> wrote:
> While looping over a counter "i", we do:
>
>   printf "[submodule \"sm-$i\"]\npath = recursive-submodule-path-$i\n" "$i"
>
> So we are passing "$i" as an argument to be filled in, but there is no
> "%" placeholder in the format string, which is a bit confusing to read.
>
> We could switch both instances of "$i" to "%d" (and pass $i twice). But
> that makes the line even longer. Let's just keep interpolating the value
> in the string, and drop the confusing extra "$i" argument.
>
> And since we are not using any printf specifiers at all, it becomes
> clear that we can swap it out for echo. We do use a "\n" in the middle
> of the string, but breaking this into two separate echo statements
> actually makes it easier to read.
>
> Signed-off-by: Jeff King <peff@xxxxxxxx>
> ---
> diff --git a/t/t7422-submodule-output.sh b/t/t7422-submodule-output.sh
> @@ -180,7 +180,8 @@ test_expect_success !MINGW 'git submodule status --recursive propagates SIGPIPE'
> -                       printf "[submodule \"sm-$i\"]\npath = recursive-submodule-path-$i\n" "$i" ||
> +                       echo "[submodule \"sm-$i\"]" &&
> +                       echo "path = recursive-submodule-path-$i" ||

This looks obviously correct and, as the commit message says, is
almost certainly easier to read, but I was more than a little
surprised to see the patch since I thought this code had been fixed
previously[*] and had some discussion around it.

[*] https://lore.kernel.org/git/20250403144852.19153-1-sn03.general@xxxxxxxxx/





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