go-wifi-switcher/cfg/cfg.go

package cfg

import (
	"log"

	"github.com/joho/godotenv"
	"github.com/kelseyhightower/envconfig"
)

type Config struct {
	Page      string `required:"true" split_words:"true"`
	AdminUser string `required:"true" split_words:"true"`
	Password  string `required:"true" split_words:"true"`
	LogFile   bool   `required:"true" split_words:"true"`
	Bin       string `required:"true" split_words:"true"`
}

func NewConfig(envFilePath string) *Config {
	if envFilePath != "" {
		err := godotenv.Load(envFilePath)
		if err != nil {
			log.Fatalf("environment variable ENV is empty and an error occurred while loading the .env file\n")
		}
	}

	cfg := &Config{}
	err := envconfig.Process("", cfg)
	if err != nil {
		log.Fatalf("envconfig.Process: %s\n", err)
	}

	return cfg
}