move logEvent into debug, condense output

debug.go

@@ -3,8 +3,21 @@ package main
 import (
 	"fmt"
 	"reflect"
+
+	ui "github.com/gizak/termui"
 )
 
+func logEvent(e ui.Event) {
+	var s string
+	s += fmt.Sprintf("Type=%s", quote(e.Type))
+	s += fmt.Sprintf(" Path=%s", quote(e.Path))
+	s += fmt.Sprintf(" From=%s", quote(e.From))
+	if e.To != "" {
+		s += fmt.Sprintf(" To=%s", quote(e.To))
+	}
+	log.Debugf("new event: %s", s)
+}
+
 func inspect(i interface{}) (s string) {
 	val := reflect.ValueOf(i)
 	elem := val.Type().Elem()
@@ -18,3 +31,7 @@ func inspect(i interface{}) (s string) {
 	}
 	return s
 }
+
+func quote(s string) string {
+	return fmt.Sprintf("\"%s\"", s)
+}