vendor/github.com/fsnotify/fsnotify/example_test.go

   1 // Copyright 2012 The Go Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style
   3 // license that can be found in the LICENSE file.
   4
   5 // +build !plan9
   6
   7 package fsnotify_test
   8
   9 import (
  10         "log"
  11
  12         "github.com/fsnotify/fsnotify"
  13 )
  14
  15 func ExampleNewWatcher() {
  16         watcher, err := fsnotify.NewWatcher()
  17         if err != nil {
  18                 log.Fatal(err)
  19         }
  20         defer watcher.Close()
  21
  22         done := make(chan bool)
  23         go func() {
  24                 for {
  25                         select {
  26                         case event := <-watcher.Events:
  27                                 log.Println("event:", event)
  28                                 if event.Op&fsnotify.Write == fsnotify.Write {
  29                                         log.Println("modified file:", event.Name)
  30                                 }
  31                         case err := <-watcher.Errors:
  32                                 log.Println("error:", err)
  33                         }
  34                 }
  35         }()
  36
  37         err = watcher.Add("/tmp/foo")
  38         if err != nil {
  39                 log.Fatal(err)
  40         }
  41         <-done
  42 }