// Copyright 2014-2016 Amazon.com, Inc. or its affiliates. All Rights Reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License"). You may
// not use this file except in compliance with the License. A copy of the
// License is located at
//
//	http://aws.amazon.com/apache2.0/
//
// or in the "license" file accompanying this file. This file is distributed
// on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
// express or implied. See the License for the specific language governing
// permissions and limitations under the License.

package version

import "fmt"

// String construct the version info of ecs-init
func String() string {
	dirtyMark := ""
	// Note that GitDirty is defined via command-line linker flags, so
	// it must be a string rather than a bool
	if GitDirty == "true" {
		dirtyMark = "*"
	}
	return fmt.Sprintf("ecs-init version %s (%s%s)", Version, dirtyMark, GitShortHash)
}

// PrintVersion print out the
func PrintVersion() error {
	if Version == "" || GitShortHash == "" {
		return fmt.Errorf("Version info not set")
	}

	fmt.Println(String())

	return nil
}