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

> 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
> > 
>