kdhcp/cmd/kdhcpd/main.go

package main

import (
	"context"
	"flag"
	"os"
	"strings"

	"git.wntrmute.dev/kyle/kdhcp/config"
	"git.wntrmute.dev/kyle/kdhcp/log"
	"git.wntrmute.dev/kyle/kdhcp/server"
	"github.com/peterbourgon/ff/v3/ffcli"
)

func main() {
	var configPath string
	logLevel := "DEBUG"

	flag.StringVar(&configPath, "f", "", "path to `config file`")
	flag.StringVar(&logLevel, "l", logLevel, "log level")
	flag.Parse()

	logLevel = strings.ToUpper(logLevel)
	log.Setup(logLevel, "kdhcpd")

	root := &ffcli.Command{
		Exec: func(ctx context.Context, args []string) error {
			cfg, err := config.Load(configPath)
			if err != nil {
				log.Fatal(err)
			}

			srv, err := server.New(cfg)
			if err != nil {
				log.Fatal(err)
			}

			defer srv.Close()

			srv.Listen()

			return nil
		},
	}

	root.ParseAndRun(context.Background(), os.Args[1:])
}