89 lines
1.5 KiB
Go
89 lines
1.5 KiB
Go
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package confg
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import (
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"bytes"
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"github.com/fsnotify/fsnotify"
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"github.com/goccy/go-json"
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"github.com/spf13/viper"
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"go.uber.org/zap"
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"path/filepath"
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"sync"
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)
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type RWLock interface {
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sync.Locker
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RLock()
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RUnlock()
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}
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type Config interface {
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RWLock
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}
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func WriteConf(path string, conf any) (err error) {
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var data []byte
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data, err = json.Marshal(conf)
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v := newViper(path)
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if err = v.ReadConfig(bytes.NewBuffer(data)); err != nil {
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return
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}
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v.SetConfigType(filepath.Ext(path))
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err = v.WriteConfig()
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return
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}
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func ReadConf(path string, conf any) error {
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return updateConfig(newViper(path), conf)
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}
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func ReadConfAndWatch(path string, conf Config, up func()) (err error) {
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v := newViper(path)
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if err = updateConfig(v, conf); err != nil {
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return
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}
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onUpdate := func(in fsnotify.Event) {
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zap.L().Info("watch file", zap.Any("event", in))
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if in.Name == "WRITE" {
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conf.Lock()
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defer conf.Unlock()
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err = updateConfig(v, conf)
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}
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if err != nil {
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zap.L().Error("auto update config err", zap.String("path", path), zap.Error(err))
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return
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}
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if up != nil {
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up()
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}
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}
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// watch config WRITE event reread config
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v.OnConfigChange(onUpdate)
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v.WatchConfig()
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return
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}
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func newViper(path string) (v *viper.Viper) {
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v = viper.New()
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v.SetConfigFile(path)
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ext := filepath.Ext(path)
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v.SetConfigType(ext[1:])
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return
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}
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func updateConfig(v *viper.Viper, conf any) (err error) {
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if err = v.ReadInConfig(); err != nil {
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return
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}
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if err = v.Unmarshal(conf); err != nil {
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return
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}
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return
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}
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