[dpdk-dev] [PATCH] devtools/test-meson-builds: fix support for plain bourne shell

[Bruce Richardson <bruce.richardson@intel.com>]

The pipefail option is not supported in /bin/sh, just in bash/ksh and
similar shells - which means it's there by default on most Linux distros
but not on e.g. FreeBSD. Therefore we check for it's presence before
setting the option, and if it's missing, we upgrade verbosity level if
needed to ensure we never hide any build failures.

Signed-off-by: Bruce Richardson <bruce.richardson@intel.com>
---
This patch is a replacement for the previous patch: "fix support for
FreeBSD" [1], which was an incorrect/incomplete fix.

[1]http://patches.dpdk.org/patch/52468/
---
 devtools/test-meson-builds.sh | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/devtools/test-meson-builds.sh b/devtools/test-meson-builds.sh
index 0ea79f461..630a1a6fe 100755
--- a/devtools/test-meson-builds.sh
+++ b/devtools/test-meson-builds.sh
@@ -7,7 +7,9 @@
 # * if a build-directory already exists we assume it was properly configured
 # Run ninja after configuration is done.
 
-set -o pipefail
+# set pipefail option if possible
+PIPEFAIL=""
+set -o | grep -q pipefail && set -o pipefail && PIPEFAIL=1
 
 srcdir=$(dirname $(readlink -f $0))/..
 MESON=${MESON:-meson}
@@ -51,6 +53,11 @@ if [ "$1" = "-vv" ] ; then
 elif [ "$1" = "-v" ] ; then
 	TEST_MESON_BUILD_VERBOSE=1
 fi
+# we can't use plain verbose when we don't have pipefail option so up-level
+if [ -z "$PIPEFAIL" -a -n "$TEST_MESON_BUILD_VERBOSE" ] ; then
+	echo "# Missing pipefail shell option, changing VERBOSE to VERY_VERBOSE"
+	TEST_MESON_BUILD_VERY_VERBOSE=1
+fi
 
 # shared and static linked builds with gcc and clang
 for c in gcc clang ; do
-- 
2.20.1