Re: [GSoC PATCH] t2203: avoid suppressing git status exit code

[Junio C Hamano <gitster@pobox.com>]

Jialong Wang <jerrywang183@yahoo.com> writes:

> Subject: Re: [GSoC PATCH] t2203: avoid suppressing git status exit code

We saw a patch <20260317011544.65952-1-jerrywang183@yahoo.com> that
looks similar, sent by you about 18 hours ago.

Please do *NOT* send an update without marking it as updating what
other patch it is replacing.  Turning "[PATCH]" to "[PATCH v2]" is a
minimum.  Explaining what changed below the three-dash line after
your sign-off would be a standard practice.  Sending the updated
patch as a reply to the original would also be a good idea.

> When git status is piped into grep, the exit status of the Git
> command is hidden by the pipeline. Capture the status output in a
> temporary file first, and then filter it as needed, so that any
> failure from git status is still noticed by the test suite.
>
> Signed-off-by: Jialong Wang <jerrywang183@yahoo.com>
> ---
>  t/t2203-add-intent.sh | 24 ++++++++++++++++--------
>  1 file changed, 16 insertions(+), 8 deletions(-)
>
> diff --git a/t/t2203-add-intent.sh b/t/t2203-add-intent.sh
> index 192ad14b5f..44c1936e4d 100755
> --- a/t/t2203-add-intent.sh
> +++ b/t/t2203-add-intent.sh
> @@ -16,7 +16,8 @@ test_expect_success 'intent to add' '
>  '
>  
>  test_expect_success 'git status' '
> -	git status --porcelain | grep -v actual >actual &&
> +	git status --porcelain >actual.raw &&
> +	grep -v actual actual.raw >actual &&
>  	cat >expect <<-\EOF &&
>  	DA 1.t
>  	A  elif
> @@ -26,7 +27,8 @@ test_expect_success 'git status' '
>  '
>  
>  test_expect_success 'git status with porcelain v2' '
> -	git status --porcelain=v2 | grep -v "^?" >actual &&
> +	git status --porcelain=v2 >actual.raw &&
> +	grep -v "^?" actual.raw >actual &&
>  	nam1=$(echo 1 | git hash-object --stdin) &&
>  	nam2=$(git hash-object elif) &&
>  	cat >expect <<-EOF &&
> @@ -171,17 +173,20 @@ test_expect_success 'rename detection finds the right names' '
>  		mv first third &&
>  		git add -N third &&
>  
> -		git status | grep -v "^?" >actual.1 &&
> +		git status >actual.raw.1 &&
> +		grep -v "^?" actual.raw.1 >actual.1 &&
>  		test_grep "renamed: *first -> third" actual.1 &&
>  
> -		git status --porcelain | grep -v "^?" >actual.2 &&
> +		git status --porcelain >actual.raw.2 &&
> +		grep -v "^?" actual.raw.2 >actual.2 &&
>  		cat >expected.2 <<-\EOF &&
>  		 R first -> third
>  		EOF
>  		test_cmp expected.2 actual.2 &&
>  
>  		hash=$(git hash-object third) &&
> -		git status --porcelain=v2 | grep -v "^?" >actual.3 &&
> +		git status --porcelain=v2 >actual.raw.3 &&
> +		grep -v "^?" actual.raw.3 >actual.3 &&
>  		cat >expected.3 <<-EOF &&
>  		2 .R N... 100644 100644 100644 $hash $hash R100 third	first
>  		EOF
> @@ -211,11 +216,13 @@ test_expect_success 'double rename detection in status' '
>  		mv second third &&
>  		git add -N third &&
>  
> -		git status | grep -v "^?" >actual.1 &&
> +		git status >actual.raw.1 &&
> +		grep -v "^?" actual.raw.1 >actual.1 &&
>  		test_grep "renamed: *first -> second" actual.1 &&
>  		test_grep "renamed: *second -> third" actual.1 &&
>  
> -		git status --porcelain | grep -v "^?" >actual.2 &&
> +		git status --porcelain >actual.raw.2 &&
> +		grep -v "^?" actual.raw.2 >actual.2 &&
>  		cat >expected.2 <<-\EOF &&
>  		R  first -> second
>  		 R second -> third
> @@ -223,7 +230,8 @@ test_expect_success 'double rename detection in status' '
>  		test_cmp expected.2 actual.2 &&
>  
>  		hash=$(git hash-object third) &&
> -		git status --porcelain=v2 | grep -v "^?" >actual.3 &&
> +		git status --porcelain=v2 >actual.raw.3 &&
> +		grep -v "^?" actual.raw.3 >actual.3 &&
>  		cat >expected.3 <<-EOF &&
>  		2 R. N... 100644 100644 100644 $hash $hash R100 second	first
>  		2 .R N... 100644 100644 100644 $hash $hash R100 third	second