Implement folder mail notifier

watcher.go

@@ -0,0 +1,59 @@
+package main
+
+import (
+	"os"
+	"path/filepath"
+
+	"gopkg.in/fsnotify.v1"
+)
+
+func WatchRecursively(root string, changeHandler func(fsnotify.Event)) error {
+	watcher, err := fsnotify.NewWatcher()
+	if err != nil {
+		return err
+	}
+	defer watcher.Close()
+
+	done := make(chan bool)
+
+	go func() {
+		for {
+			select {
+			case event, ok := <-watcher.Events:
+				if !ok {
+					return
+				}
+				changeHandler(event)
+			case err, ok := <-watcher.Errors:
+				if !ok {
+					return
+				}
+				Error.Printf("error with watcher: %v", err)
+			}
+		}
+	}()
+
+	dirs := 0
+	err = filepath.Walk(root, func(path string, info os.FileInfo, err error) error {
+		if err != nil {
+			return err
+		}
+		if info.Name() == ".git" {
+			return filepath.SkipDir
+		}
+		if info.IsDir() {
+			err = watcher.Add(path)
+			dirs++
+			if err != nil {
+				return err
+			}
+		}
+		return nil
+	})
+	if err != nil {
+		return err
+	}
+
+	<-done
+	return nil
+}