ci: add kas-shell-helper script

This helper will allow to define the same pattern to use kas shell.
This way it will be used in the same way in all shell scripts used.

The TOPDIR and KAS_WORK_DIR will be inferred in the helper and
passed to the script to be executed.

Signed-off-by: Jose Quaresma <[email protected]>

Author: quaresmajose

ci/kas-shell-helper.sh

@@ -0,0 +1,19 @@
+#!/bin/sh -e
+# Copyright (c) 2025 Qualcomm Innovation Center, Inc. All rights reserved.
+# SPDX-License-Identifier: MIT
+
+TOPDIR=$(realpath $(dirname $(readlink -f $0))/..)
+SCRIPT=$(realpath $1)
+
+if ! [ -f $SCRIPT ]; then
+    echo "The script path argument is missing, please run it with:"
+    echo " $0 /path/to/script"
+    exit 1
+fi
+
+# Ensure KAS workspace is outside of the checked out repo
+# Allows the caller to specify KAS_WORK_DIR, otherwise make temp one
+export KAS_WORK_DIR=$(realpath ${KAS_WORK_DIR:-$(mktemp -d)})
+
+echo "Running kas in $KAS_WORK_DIR"
+exec kas shell $TOPDIR/ci/base.yml --command "$SCRIPT $TOPDIR $KAS_WORK_DIR"