tests/check-block.sh: Refuse to run the iotests with BusyBox' sed

BusyBox' sed reports itself as "This is not GNU sed version 4.0"
when being run with the --version parameter. However, the iotests
really need GNU sed, they do not work with the BusyBox version.
So let's make sure that we really have GNU sed and refuse to run
the tests with BusyBox' sed.

Signed-off-by: Thomas Huth <thuth@redhat.com>
Message-Id: <20210119134749.401311-1-thuth@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>

diff --git a/tests/check-block.sh b/tests/check-block.sh
index fb4c1baae98a3d3764a7e030ad7b0239ed43ddcd..e4f37905befd4d44ca40a32eb70e2d2e82bdebea 100755 (executable)
--- a/tests/check-block.sh
+++ b/tests/check-block.sh
@@ -60,6 +60,13 @@ if ! (sed --version | grep 'GNU sed') > /dev/null 2>&1 ; then
         echo "GNU sed not available ==> Not running the qemu-iotests."
         exit 0
     fi
+else
+    # Double-check that we're not using BusyBox' sed which says
+    # that "This is not GNU sed version 4.0" ...
+    if sed --version | grep -q 'not GNU sed' ; then
+        echo "BusyBox sed not supported ==> Not running the qemu-iotests."
+        exit 0
+    fi
 fi
 
 cd tests/qemu-iotests