50 lines
966 B
Go
50 lines
966 B
Go
package main
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import (
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"bitbucket.org/BlackBroker/heruvym/app"
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"errors"
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"os"
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"reflect"
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"strconv"
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"strings"
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)
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func getEnv() app.Options {
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var res app.Options
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r := reflect.ValueOf(res)
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for i := 0; i < r.NumField(); i++ {
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v := r.Type().Field(i).Tag.Get(app.ENV)
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d := r.Type().Field(i).Tag.Get(app.DEFAULT)
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env, ok := os.LookupEnv(v)
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var val string
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if ok {
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val = env
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} else {
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val = d
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}
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switch t := r.Type().Field(i).Type.Name(); t {
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case "string":
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reflect.ValueOf(&res).Elem().Field(i).SetString(val)
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case "bool":
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if strings.ToLower(val) == "true" {
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reflect.ValueOf(&res).Elem().Field(i).SetBool(true)
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} else {
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reflect.ValueOf(&res).Elem().Field(i).SetBool(false)
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}
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case "uint64":
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num, err := strconv.ParseUint(val, 10, 64)
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if err != nil {
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panic(err)
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}
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reflect.ValueOf(&res).Elem().Field(i).SetUint(num)
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default:
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panic(errors.New("Something strange happend: " + t))
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}
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}
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return res
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}
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