kernel: Add config version file

In order to track the changes that we add to the kernel, lets
add a kata_config_version file that should be bumped whenever
a change is added to the kernel directory

Fixes #43.

Signed-off-by: Salvador Fuentes <salvador.fuentes@intel.com>

.ci/lib.sh

@@ -0,0 +1,26 @@
+#!/bin/bash
+#
+# Copyright (c) 2018 Intel Corporation
+#
+# SPDX-License-Identifier: Apache-2.0
+
+# If we fail for any reason a message will be displayed
+die(){
+	msg="$*"
+	echo "ERROR: $msg" >&2
+	exit 1
+}
+
+# Check that kata_confing_version file is updated
+# when there is any change in the kernel directory.
+# If there is a change in the directory, but the config
+# version is not updated, return error.
+check_kata_kernel_version(){
+	kernel_version_file="kernel/kata_config_version"
+	modified_files=$(git diff --name-only master..)
+	if echo "$modified_files" | grep "kernel/"; then
+		echo "$modified_files" | grep "$kernel_version_file" || \
+		die "Please bump version in $kernel_version_file"
+	fi
+
+}

.ci/run.sh

@@ -9,6 +9,10 @@ set -o errexit
 set -o nounset
 set -o pipefail
 
+cidir=$(dirname "$0")
+source "${cidir}/lib.sh"
+
 # This script will execute packaging tests suite
 # TODO: Add steps needed to build packages
-true
+
+check_kata_kernel_version

kernel/kata_config_version

@@ -0,0 +1 @@
+1