/
viper.go
54 lines (45 loc) · 1.06 KB
/
viper.go
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package core
import (
"bytes"
"log"
"github.com/fsnotify/fsnotify"
"github.com/spf13/viper"
)
type ViperOption func(*viper.Viper)
func NewViper(config any, options ...ViperOption) *viper.Viper {
v := viper.New()
for _, option := range options {
option(v)
}
if err := v.Unmarshal(&config); err != nil {
log.Fatalf("fatal error unmarshal config: %s \n", err)
}
v.OnConfigChange(func(e fsnotify.Event) {
log.Println("config file changed:", e.Name)
if err := v.Unmarshal(&config); err != nil {
log.Fatalf("fatal error unmarshal config: %s \n", err)
}
})
v.WatchConfig()
v.AutomaticEnv()
return v
}
func ViperSetEnvPrefix(in string) ViperOption {
return func(v *viper.Viper) {
v.SetEnvPrefix(in)
}
}
func ViperSetConfigFile(in string) ViperOption {
return func(v *viper.Viper) {
v.SetConfigFile(in)
if err := v.ReadInConfig(); err != nil {
log.Fatalf("fatal error config file: %s \n", err)
}
}
}
func ViperReadConfig(t string, c []byte) ViperOption {
return func(v *viper.Viper) {
v.SetConfigType(t)
v.ReadConfig(bytes.NewBuffer(c))
}
}