mirror of
https://github.com/gohugoio/hugo.git
synced 2024-12-23 18:02:28 +00:00
66 lines
1.5 KiB
Go
66 lines
1.5 KiB
Go
// Copyright 2015 The Hugo Authors. All rights reserved.
|
|
//
|
|
// Licensed under the Apache License, Version 2.0 (the "License");
|
|
// you may not use this file except in compliance with the License.
|
|
// You may obtain a copy of the License at
|
|
// http://www.apache.org/licenses/LICENSE-2.0
|
|
//
|
|
// Unless required by applicable law or agreed to in writing, software
|
|
// distributed under the License is distributed on an "AS IS" BASIS,
|
|
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
// See the License for the specific language governing permissions and
|
|
// limitations under the License.
|
|
|
|
package livereload
|
|
|
|
import (
|
|
"bytes"
|
|
"sync"
|
|
|
|
"github.com/gorilla/websocket"
|
|
)
|
|
|
|
type connection struct {
|
|
// The websocket connection.
|
|
ws *websocket.Conn
|
|
|
|
// Buffered channel of outbound messages.
|
|
send chan []byte
|
|
|
|
// There is a potential data race, especially visible with large files.
|
|
// This is protected by synchronisation of the send channel's close.
|
|
closer sync.Once
|
|
}
|
|
|
|
func (c *connection) close() {
|
|
c.closer.Do(func() {
|
|
close(c.send)
|
|
})
|
|
}
|
|
|
|
func (c *connection) reader() {
|
|
for {
|
|
_, message, err := c.ws.ReadMessage()
|
|
if err != nil {
|
|
break
|
|
}
|
|
if bytes.Contains(message, []byte(`"command":"hello"`)) {
|
|
c.send <- []byte(`{
|
|
"command": "hello",
|
|
"protocols": [ "http://livereload.com/protocols/official-7" ],
|
|
"serverName": "Hugo"
|
|
}`)
|
|
}
|
|
}
|
|
c.ws.Close()
|
|
}
|
|
|
|
func (c *connection) writer() {
|
|
for message := range c.send {
|
|
err := c.ws.WriteMessage(websocket.TextMessage, message)
|
|
if err != nil {
|
|
break
|
|
}
|
|
}
|
|
c.ws.Close()
|
|
}
|