Re: [PATCH v2 2/2] t0450: add allowlist for builtins with missing .adoc

> Before we were silently skipping all builtins that don't have a matching
> .adoc file. This is overly loose and might skip documentation files
> when it shouldn't, for example when there was a typo in the filename.
>
> To ensure no new builtins are added without documentation, add an
> allowlist: t0450/adoc-missing. In this file only builtin commands that
> do *not* have a corresponding .adoc file shall be listed. If there is a
> mismatch, fail the test. This should force future contributions to
> either add an .adoc, or add the builtin name to the allowlist file.
>
> Signed-off-by: Toon Claes <toon@iotcl.com>
> ---
>  t/t0450-txt-doc-vs-help.sh | 8 +++++++-
>  1 file changed, 7 insertions(+), 1 deletion(-)

>
> diff --git a/t/t0450-txt-doc-vs-help.sh b/t/t0450-txt-doc-vs-help.sh
> index da2d0af5b0..980130be78 100755
> --- a/t/t0450-txt-doc-vs-help.sh
> +++ b/t/t0450-txt-doc-vs-help.sh
> @@ -112,10 +112,16 @@ do
>  	adoc="$(builtin_to_adoc "$builtin")" &&
>  	preq="$(echo BUILTIN_ADOC_$builtin | tr '[:lower:]-' '[:upper:]_')" &&
>  
> -	if test -f "$adoc"
> +	# if and only if *.adoc is missing, builtin shall be listed in t0450/adoc-missing
> +	result=success
> +	if grep -q "^$builtin$" "$TEST_DIRECTORY"/t0450/adoc-missing
>  	then
>  		test_set_prereq "$preq"
> +		result=failure
>  	fi &&
> +	test_expect_$result "$builtin appropriately marked as having missing .adoc" '
> +		test -f "$adoc"
> +	'
>  
>  	# *.adoc output assertions
>  	test_expect_success "$preq" "$builtin *.adoc SYNOPSIS has dashed labels" '