Re: [PATCH] ci: clear and mark MAKEFLAGS exported just once

["SZEDER Gábor" <szeder.dev@gmail.com>]

On Thu, Feb 07, 2019 at 03:45:46PM -0800, Junio C Hamano wrote:
> Clearing it once upfront, and turning all the assignment into
> appending, would future-proof the code even more, to prevent
> mistakes the previous one fixed from happening again.
> 
> Also, mark the variable exported just once at the beginning.  There
> is no point in marking it exported repeatedly.
> 
> Signed-off-by: Junio C Hamano <gitster@pobox.com>
> ---
>     >> So I'd rather clear `MAKEFLAGS` at the beginning (i.e. where you `export
>     >> MAKEFLAGS`, I'd simply append a `=`).
> 
>     This time in proper patch form.

Makes sense, and the patch looks good to me.

>  ci/lib.sh | 9 ++++++---
>  1 file changed, 6 insertions(+), 3 deletions(-)
> 
> diff --git a/ci/lib.sh b/ci/lib.sh
> index cee51a4cc4..288a5b3884 100755
> --- a/ci/lib.sh
> +++ b/ci/lib.sh
> @@ -74,6 +74,9 @@ check_unignored_build_artifacts ()
>  	}
>  }
>  
> +# Clear MAKEFLAGS that may come from the outside world.
> +export MAKEFLAGS=
> +
>  # Set 'exit on error' for all CI scripts to let the caller know that
>  # something went wrong.
>  # Set tracing executed commands, primarily setting environment variables
> @@ -101,7 +104,7 @@ then
>  	BREW_INSTALL_PACKAGES="git-lfs gettext"
>  	export GIT_PROVE_OPTS="--timer --jobs 3 --state=failed,slow,save"
>  	export GIT_TEST_OPTS="--verbose-log -x --immediate"
> -	export MAKEFLAGS="--jobs=2"
> +	MAKEFLAGS="$MAKEFLAGS --jobs=2"
>  elif test -n "$SYSTEM_COLLECTIONURI" || test -n "$SYSTEM_TASKDEFINITIONSURI"
>  then
>  	CI_TYPE=azure-pipelines
> @@ -126,7 +129,7 @@ then
>  	BREW_INSTALL_PACKAGES=gcc@8
>  	export GIT_PROVE_OPTS="--timer --jobs 10 --state=failed,slow,save"
>  	export GIT_TEST_OPTS="--verbose-log -x --write-junit-xml"
> -	export MAKEFLAGS="--jobs=10"
> +	MAKEFLAGS="$MAKEFLAGS --jobs=10"
>  	test windows_nt != "$CI_OS_NAME" ||
>  	GIT_TEST_OPTS="--no-chain-lint --no-bin-wrappers $GIT_TEST_OPTS"
>  else
> @@ -185,4 +188,4 @@ GIT_TEST_GETTEXT_POISON)
>  	;;
>  esac
>  
> -export MAKEFLAGS="$MAKEFLAGS CC=${CC:-cc}"
> +MAKEFLAGS="$MAKEFLAGS CC=${CC:-cc}"
> -- 
> 2.21.0-rc0
>