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Re: [PATCH] ci: make sure we build Git parallel




Junio C Hamano <gitster@xxxxxxxxx> writes:

> Wouldn't all other hits of "MAKEFLAGS=" in ci/lib.sh also want the
> same treatment, though?  We know that "if travis to this, otherwise
> if Asure, do that" is the first block to muck with MAKEFLAGS in the
> script, but a new assignment before that block can be added in the
> future and cause a similar issue unless we do so.
>
> Of course, at some point we do want to say "we do not want to
> inherit it from the outside environment", but then such an
> assignment of empty value should be done at the very beginning with
> a comment, not with "this happens to be the first one to set, so
> let's not append but assign to clear any previous value", I would
> think.

That is, in a patch form on top of yours, something like this.


 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}"