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Date: Tue, 13 Jun 2023 10:20:15 +0100
From: Bruce Richardson <bruce.richardson@intel.com>
To: David Marchand <david.marchand@redhat.com>
CC: <dev@dpdk.org>, <thomas@monjalon.net>
Subject: Re: [PATCH 3/4] devtools: build all examples externally
Message-ID: <ZIg0z2uvLHX69uK2@bricha3-MOBL.ger.corp.intel.com>
References: <20230613081741.4083273-1-david.marchand@redhat.com>
 <20230613081741.4083273-4-david.marchand@redhat.com>
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Errors-To: dev-bounces@dpdk.org

On Tue, Jun 13, 2023 at 10:17:40AM +0200, David Marchand wrote:
> So far, users of test-meson-builds.sh had to define their own set of
> examples to build externally. This is not that great because users need
> to maintain this list when examples are removed/added.
> 
> Rework the script so that the 'all' value triggers an automatic
> discovery based on what was configured/compiled with meson/ninja.
> 
> Signed-off-by: David Marchand <david.marchand@redhat.com>
> ---
>  devtools/test-meson-builds.sh | 14 ++++++++++++++
>  1 file changed, 14 insertions(+)
> 
> diff --git a/devtools/test-meson-builds.sh b/devtools/test-meson-builds.sh
> index 9131088c9d..cab3373544 100755
> --- a/devtools/test-meson-builds.sh
> +++ b/devtools/test-meson-builds.sh
> @@ -299,6 +299,20 @@ export PKG_CONFIG_PATH=$(dirname $pc_file):$PKG_CONFIG_PATH
>  libdir=$(dirname $(find $DESTDIR -name librte_eal.so))
>  export LD_LIBRARY_PATH=$libdir:$LD_LIBRARY_PATH
>  examples=${DPDK_BUILD_TEST_EXAMPLES:-"cmdline helloworld l2fwd l3fwd skeleton timer"}
> +if [ "$examples" = 'all' ]; then
> +	examples=$(ninja -C $build_path -t targets all | grep 'examples/.*:.*c_LINKER' |

Since the build has already been done in $build_path at this point, would
it be easier to get the list of examples from "ls $build_path/examples/dpdk-*"?

> +	while read target; do
> +		target=${target%%:*}
> +		target=${target#examples/dpdk-}
> +		if [ -e $srcdir/examples/$target/Makefile ]; then
> +			echo $target
> +			continue
> +		fi
> +		find $srcdir/examples -name Makefile |
> +		sed -ne "s,$srcdir/examples/\([^/]*\)\(/.*\|\)/$target/Makefile,\1,p"
> +	done | sort -u |
> +	tr '\n' ' ')
> +fi
>  # if pkg-config defines the necessary flags, test building some examples
>  if pkg-config --define-prefix libdpdk >/dev/null 2>&1; then
>  	export PKGCONF="pkg-config --define-prefix"
> -- 
> 2.40.1
>