fsnotify.go

package main

import (
	"log"

	"github.com/fsnotify/fsnotify"
)

func main() {
  // watcherの作成
	watcher, err := fsnotify.NewWatcher()
	if err != nil {
		log.Fatal(err)
	}
	defer watcher.Close()

  // イベント監視
	done := make(chan bool)
	go func() {
		for {
			select {
			case event := <-watcher.Events:
				log.Println("event:", event)
			case err := <-watcher.Errors:
				log.Println("error:", err)
			}
		}
	}()

  // hoge.goを監視対象に追加
	err = watcher.Add("./hoge.go")
	if err != nil {
		log.Fatal(err)
	}
	<-done
}