config/init.go

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// Package config ...
//
// Description : config ...
//
// Author : go_developer@163.com<白茶清欢>
//
// Date : 2024-11-05 16:23
package config
import (
"errors"
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"git.zhangdeman.cn/zhangdeman/serialize"
envParse "github.com/caarlos0/env/v9"
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"github.com/jessevdk/go-flags"
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"github.com/joho/godotenv"
"reflect"
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)
// Init 初始化配置
//
// Author : go_developer@163.com<白茶清欢>
//
// Date : 16:25 2024/11/5
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//
// 参数:
// - configReceiver 接收参数结果的指针
// - envFileList 环境变量文件路径, 可以指定多个环境变量文件, 不指定默认加载服务运行目录下 .env 文件
// - configFile 配置文件路径
func Init(configReceiver any, envFileList []string, configFile string) error {
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var (
err error
)
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if nil == envFileList {
envFileList = make([]string, 0)
}
// 检查结构体指针是否合法
if err = checkConfigReceiver(configReceiver); err != nil {
return err
}
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// 加载环境变量
if err = godotenv.Load(envFileList...); nil != err {
return err
}
// 解析命令行参数
cliReceiver := cloneReceiver(configReceiver)
if _, err = flags.Parse(cliReceiver); nil != err {
return err
}
// 解析环境变量参数
envReceiver := cloneReceiver(configReceiver)
if err = envParse.Parse(envReceiver); nil != err {
return err
}
// 解析配置文件参数
fileReceiver := cloneReceiver(configReceiver)
if err = serialize.File.ReadAnyFileContent(configFile, fileReceiver); nil != err {
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return err
}
return nil
}
// checkConfigReceiver 校验配置接收者必须是指针
//
// Author : go_developer@163.com<白茶清欢>
//
// Date : 17:16 2024/11/5
func checkConfigReceiver(configReceiver any) error {
if nil == configReceiver {
return errors.New("config receiver is nil")
}
receiverType := reflect.TypeOf(configReceiver)
if receiverType.Kind() != reflect.Ptr {
return errors.New("config receiver is not a pointer")
}
return nil
}
// cloneReceiver ...
//
// Author : go_developer@163.com<白茶清欢>
//
// Date : 17:16 2024/11/5
func cloneReceiver(configReceiver any) any {
dataType := reflect.TypeOf(configReceiver).Elem()
return reflect.New(dataType).Interface()
}