/*
 * Copyright (c) 2024 The GoPlus Authors (goplus.org). 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.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License 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 env

import "runtime/debug"

// buildTime is the LLGo binary's build time. It should be set by the linker.
var buildTime string

// BuildTime returns the build time of the running LLGo binary.
func BuildTime() string {
	if buildTime != "" {
		return buildTime
	}
	info, ok := debug.ReadBuildInfo()
	if ok {
		for _, setting := range info.Settings {
			if setting.Key == "vcs.time" {
				return setting.Value
			}
		}
	}
	return ""
}