[PATCH v2] ci: remove outdated default versions for ABI check

[Thomas Monjalon <thomas@monjalon.net>]

The variables REF_GIT_TAG and LIBABIGAIL_VERSION are set
in the CI configuration like .travis.yml or .github/workflows/build.yml.
The default values are outdated and probably unused.

The default values are removed completely
to avoid forgetting an update in future.

The use of the variables is quoted to make sure
a missing value will trigger an appropriate failure.

Signed-off-by: Thomas Monjalon <thomas@monjalon.net>
Acked-by: Aaron Conole <aconole@redhat.com>
---
 .ci/linux-build.sh | 7 ++-----
 1 file changed, 2 insertions(+), 5 deletions(-)

diff --git a/.ci/linux-build.sh b/.ci/linux-build.sh
index 67d68535e0..05aa21ec69 100755
--- a/.ci/linux-build.sh
+++ b/.ci/linux-build.sh
@@ -104,8 +104,6 @@ if [ "$AARCH64" != "true" ] && [ "$PPC64LE" != "true" ]; then
 fi
 
 if [ "$ABI_CHECKS" = "true" ]; then
-    LIBABIGAIL_VERSION=${LIBABIGAIL_VERSION:-libabigail-1.6}
-
     if [ "$(cat libabigail/VERSION 2>/dev/null)" != "$LIBABIGAIL_VERSION" ]; then
         rm -rf libabigail
         # if we change libabigail, invalidate existing abi cache
@@ -113,14 +111,13 @@ if [ "$ABI_CHECKS" = "true" ]; then
     fi
 
     if [ ! -d libabigail ]; then
-        install_libabigail $LIBABIGAIL_VERSION $(pwd)/libabigail
+        install_libabigail "$LIBABIGAIL_VERSION" $(pwd)/libabigail
         echo $LIBABIGAIL_VERSION > libabigail/VERSION
     fi
 
     export PATH=$(pwd)/libabigail/bin:$PATH
 
     REF_GIT_REPO=${REF_GIT_REPO:-https://dpdk.org/git/dpdk}
-    REF_GIT_TAG=${REF_GIT_TAG:-v19.11}
 
     if [ "$(cat reference/VERSION 2>/dev/null)" != "$REF_GIT_TAG" ]; then
         rm -rf reference
@@ -128,7 +125,7 @@ if [ "$ABI_CHECKS" = "true" ]; then
 
     if [ ! -d reference ]; then
         refsrcdir=$(readlink -f $(pwd)/../dpdk-$REF_GIT_TAG)
-        git clone --single-branch -b $REF_GIT_TAG $REF_GIT_REPO $refsrcdir
+        git clone --single-branch -b "$REF_GIT_TAG" $REF_GIT_REPO $refsrcdir
         meson $OPTS -Dexamples= $refsrcdir $refsrcdir/build
         ninja -C $refsrcdir/build
         DESTDIR=$(pwd)/reference ninja -C $refsrcdir/build install
-- 
2.34.1