ci: Verify and block merge if other projects are not updated

This will take the VERSION of all the components in order to
verify that they match among them before merging the runtime.

Fixes kata-containers#1581

Depends-on: github.com/kata-containers/packaging#614

Signed-off-by: Gabriela Cervantes <gabriela.cervantes.tellez@intel.com>

.ci/versions_checker.sh

@@ -0,0 +1,31 @@
+#!/bin/bash
+#
+# Copyright (c) 2019 Intel Corporation
+#
+# SPDX-License-Identifier: Apache-2.0
+#
+# The purpose of this script is to
+# run the tag_repos.sh script that is in the
+# packaging repository which checks the VERSION
+# file from the components in order to verify
+# that the VERSION matches between them.
+# This ensures that the rest
+# of the components are merged before the runtime
+
+set -e
+
+GOPATH=${GOPATH:-${HOME}/go}
+
+PACKAGING_REPO="github.com/kata-containers/packaging"
+RUNTIME_REPO="github.com/kata-containers/runtime"
+
+go get -d "${PACKAGING_REPO}" || true
+
+check_changes=$(git diff "${GOPATH}/src/${RUNTIME_REPO}/VERSION")
+version_to_check=$(cat "${GOPATH}/src/${RUNTIME_REPO}/VERSION")
+
+if [ ! -z "$check_changes" ]; then
+	pushd "${GOPATH}/src/${PACKAGING_REPO}"
+	./release/tag_repos.sh pre-release "${version_to_check}" 
+	popd
+fi

.travis.yml

@@ -26,6 +26,7 @@ before_install:
 
 before_script:
   - ".ci/static-checks.sh"
+  - ".ci/versions_checker.sh"
 
 install:
   - cd ${TRAVIS_BUILD_DIR}