Golang package that implements a simple LiveReload server as described in the LiveReload protocol.
Using the recommended default port 35729:
-
http://localhost:35729/livereload.jsserves the LiveReload client JavaScript (https://github.com/livereload/livereload-js) -
ws://localhost:35729/livereloadcommunicates with the client via web socket.
File watching must be implemented by your own application, and reload/alert requests sent programmatically.
Multiple servers can be instantiated, and each can support multiple connections.
go get github.com/jaschaephraim/lrserverimport "github.com/jaschaephraim/lrserver"lr := lrserver.New(lrserver.DefaultName, lrserver.DefaultPort)go func() {
err := lr.ListenAndServe()
if err != nil {
// Handle error
}
}()lr.Reload("file")
lr.Alert("message")import (
"log"
"net/http"
"github.com/fsnotify/fsnotify"
"github.com/jaschaephraim/lrserver"
)
// html includes the client JavaScript
const html = `<!doctype html>
<html>
<head>
<title>Example</title>
</head>
<body>
<script src="http://localhost:35729/livereload.js"></script>
</body>
</html>`
func Example() {
// Create file watcher
watcher, err := fsnotify.NewWatcher()
if err != nil {
log.Fatalln(err)
}
defer watcher.Close()
// Add dir to watcher
err = watcher.Add("/path/to/watched/dir")
if err != nil {
log.Fatalln(err)
}
// Create and start LiveReload server
lr := lrserver.New(lrserver.DefaultName, lrserver.DefaultPort)
go lr.ListenAndServe()
// Start goroutine that requests reload upon watcher event
go func() {
for {
select {
case event := <-watcher.Events:
lr.Reload(event.Name)
case err := <-watcher.Errors:
log.Println(err)
}
}
}()
// Start serving html
http.HandleFunc("/", func(rw http.ResponseWriter, req *http.Request) {
rw.Write([]byte(html))
})
http.ListenAndServe(":3000", nil)
}
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