packaging: merge packaging repository

git-subtree-dir: tools/packaging
git-subtree-mainline: f818b46a41
git-subtree-split: 1f22d72d5d

Signed-off-by: Peng Tao <bergwolf@hyper.sh>

tools/packaging/cmd/kata-pkgsync/cli/utils.go

@@ -0,0 +1,26 @@
+// Copyright (c) 2019 SUSE LLC
+//
+// SPDX-License-Identifier: Apache-2.0
+//
+
+package main
+
+import (
+	"fmt"
+	"io/ioutil"
+
+	"github.com/pkg/errors"
+	"gopkg.in/yaml.v2"
+)
+
+func yamlUnmarshal(yamlFile string, cfg interface{}) error {
+	source, err := ioutil.ReadFile(yamlFile)
+	if err != nil {
+		return err
+	}
+	err = yaml.Unmarshal(source, cfg)
+	if err != nil {
+		return errors.Wrapf(err, fmt.Sprintf("cannot unmarshal %s", yamlFile))
+	}
+	return nil
+}