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help.go
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help.go
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// Copyright 2013 Joe Walnes and the websocketd team.
// All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package main
import (
"fmt"
"os"
"path/filepath"
"strings"
)
const (
help = `
{{binary}} ({{version}})
{{binary}} is a command line tool that will allow any executable program
that accepts input on stdin and produces output on stdout to be turned into
a WebSocket server.
Usage:
Export a single executable program a WebSocket server:
{{binary}} [options] program [program args]
Options:
--port=PORT HTTP port to listen on.
--address=ADDRESS Address to bind to.
Default: 0.0.0.0 (all)
--basepath=PATH Base path in URLs to serve from.
Default: / (root of domain)
--verbose Enable verbose logging to stdout.
--reverselookup={true,false} Perform DNS reverse lookups on remote clients.
Default: true
Full documentation at http://websocketd.com/
Copyright 2013 Joe Walnes and the websocketd team. All rights reserved.
BSD license: https://raw.github.com/joewalnes/websocketd/master/LICENSE
`
)
func PrintHelp() {
msg := strings.Trim(help, " \n")
msg = strings.Replace(msg, "{{binary}}", filepath.Base(os.Args[0]), -1)
msg = strings.Replace(msg, "{{version}}", Version(), -1)
fmt.Fprintf(os.Stderr, "%s\n", msg)
}