Re: [PATCH v2] ssh signing: don't detach the filename strbuf from key_file tempfile

[Patrick Steinhardt <ps@pks.im>]

On Sun, Jul 06, 2025 at 07:34:49PM +0200, redoste wrote:
> diff --git a/t/t7528-signed-commit-ssh.sh b/t/t7528-signed-commit-ssh.sh
> index 065f780636..1a8d96f355 100755
> --- a/t/t7528-signed-commit-ssh.sh
> +++ b/t/t7528-signed-commit-ssh.sh
> @@ -390,6 +390,22 @@ test_expect_success GPGSSH 'check config gpg.format values' '
>  	test_must_fail git commit -S --amend -m "fail"
>  '
>  
> +test_expect_success GPGSSH 'check temporary files clean up when signing commits' '
> +	test_config gpg.format ssh &&
> +	eval $(ssh-agent) &&
> +	test_when_finished "kill ${SSH_AGENT_PID}" &&
> +	mkdir tmpdir &&
> +	TMPDIR="$(pwd)/tmpdir" &&
> +	export TMPDIR &&

I think this exported environment variable now leaks into subsequent
tests, doesn't it? We may want to do it in a subshell.

	mkdir tmpdir &&
	TMPDIR="$(pwd)/tmpdir" &&
	(
		export TMPDIR &&
		ssh-add "${GPGSSH_KEY_PRIMARY}" &&
		echo 1 >file && git add file &&
		git commit -a -m inline -S"$(cat "${GPGSSH_KEY_PRIMARY}.pub")" &&
		echo 2 >file &&
		git commit -a -m file -S"${GPGSSH_KEY_PRIMARY}"
	) && 
	find tmpdir -type f >tmpfiles &&
	test_line_count = 0 tmpfiles

Patrick

> +	ssh-add "${GPGSSH_KEY_PRIMARY}" &&
> +	echo 1 >file && git add file &&
> +	git commit -a -m inline -S"$(cat "${GPGSSH_KEY_PRIMARY}.pub")" &&
> +	echo 2 >file &&
> +	git commit -a -m file -S"${GPGSSH_KEY_PRIMARY}" &&
> +	find tmpdir -type f >tmpfiles &&
> +	test_line_count = 0 tmpfiles
> +'
> +
>  test_expect_failure GPGSSH 'detect fudged commit with double signature (TODO)' '
>  	sed -e "/gpgsig/,/END PGP/d" forged1 >double-base &&
>  	sed -n -e "/gpgsig/,/END PGP/p" forged1 | \
> -- 
> 2.49.0
> 
>