Re: [PATCH 7/8] t/perf: add 'GIT_PERF_USE_SCALAR' run option

[Johannes Schindelin <Johannes.Schindelin@gmx.de>]

Hi Victoria,

On Wed, 31 Aug 2022, Victoria Dye via GitGitGadget wrote:

> From: Victoria Dye <vdye@github.com>
>
> Add a 'GIT_PERF_USE_SCALAR' environment variable (and corresponding perf
> config 'useScalar') to register a repository created with any of:
>
> * test_perf_fresh_repo
> * test_perf_default_repo
> * test_perf_large_repo
>
> as a Scalar enlistment. This is intended to allow a developer to test the
> impact of Scalar on already-defined performance scenarios.

Great idea!

> [...]
> @@ -130,7 +137,11 @@ test_perf_fresh_repo () {
>  	"$MODERN_GIT" init -q "$repo" &&
>  	(
>  		cd "$repo" &&
> -		test_perf_do_repo_symlink_config_
> +		test_perf_do_repo_symlink_config_ &&
> +		if test_bool_env "$GIT_PERF_USE_SCALAR" false
> +		then
> +			"$MODERN_SCALAR" register

Do we need to unregister anything here? My guess is that no, the "global"
config we're using in tests is "$TRASH_DIRECTORY/.gitconfig", and the side
effect of scheduling the maintenance task won't matter in practice. But I
might have missed something and we may want to have an explicit
`unregister` step.

What's your take on this?

Ciao,
Dscho

> +		fi
>  	)
>  }