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#!/usr/bin/env node
"use strict";
var dope = require("console-dope"),
connect = require("connect"),
http = require("http"),
Model = require("nature").Model,
w = require("wodge"),
path = require("path"),
loadConfig = require("config-master"),
morgan = require("morgan"),
serveStatic = require("serve-static"),
directory = require("serve-index"),
compress = require("compression");
var usage =
"usage: \n\
$ ws [--directory|-d <directory>] [--port|-p <port>] [--log-format|-f dev|default|short|tiny]\n\
$ ws --compress|-c \n\
$ ws --help|-h";
function halt(message){
dope.red.log("Error: %s", message);
dope.log(usage);
process.exit(1);
}
/* parse command-line args */
var argv = new Model()
.define({ name: "port", alias: "p", type: "number", defaultOption: true, value: 8000 })
.define({ name: "log-format", alias: "f", type: "string" })
.define({ name: "help", alias: "h", type: "boolean" })
.define({ name: "directory", alias: "d", type: "string", value: process.cwd() })
.define({ name: "config", type: "boolean" })
.define({ name: "compress", alias: "c", type: "boolean" });
/* Merge together options from "~/.local-web-server.json", "{cwd}/.local-web-server.json" and "{cwd}/package.json", in that order. */
var storedConfig = loadConfig(
path.join(w.getHomeDir(), ".local-web-server.json"),
path.join(process.cwd(), ".local-web-server.json"),
path.join(process.cwd(), "package.json:local-web-server")
);
try {
argv.set(storedConfig);
} catch (err){
dope.red.log("Failed to set stored config, please check your config files");
halt(err.message);
}
/* Finally, set the options from the command-line, overriding all defaults. */
try {
argv.set(process.argv);
} catch (err){
dope.red.log("Failed to set command line options");
halt(err.message);
}
/* Die here if invalid args received */
if (!argv.valid) halt(argv.validationMessages);
if (argv.config){
dope.log("Stored config: ");
dope.log(storedConfig);
process.exit(0);
} else if (argv.help){
dope.log(usage);
} else {
var total = {
req: 0,
bytes: 0,
connections: 0
};
process.on("SIGINT", function(){
dope.showCursor();
dope.log();
process.exit(0);
});
/* customised logger :date token, purely to satisfy Logstalgia. */
morgan.token("date", function(){
var a = new Date();
return (a.getDate() + "/" + a.getUTCMonth() + "/" + a.getFullYear() + ":" + a.toTimeString())
.replace("GMT", "").replace(" (BST)", "");
});
var app = connect();
/* log using --log-format (if supplied), else output statics */
if(argv["log-format"]){
app.use(morgan(argv["log-format"]));
} else {
app.use(function(req, res, next){
dope.column(1).write(++total.req);
next();
});
}
/* --compress enables compression */
if (argv.compress) app.use(compress());
/* static file server including directory browsing support */
app.use(serveStatic(path.resolve(argv.directory)))
.use(directory(path.resolve(argv.directory), { icons: true }));
/* launch server */
var server = http.createServer(app)
.on("error", function(err){
if (err.code === "EADDRINUSE"){
halt("port " + argv.port + " is already is use");
} else {
halt(err.message);
}
})
.listen(argv.port);
/* write status to stderr so stdout can be piped to disk ($ ws > log.txt) */
if (path.resolve(argv.directory) === process.cwd()){
dope.error("serving at %underline{%s}", "http://localhost:" + argv.port);
} else {
dope.error("serving %underline{%s} at %underline{%s}", argv.directory, "http://localhost:" + argv.port);
}
/* in stats mode, monitor connections and bytes transferred */
if (!argv["log-format"]){
dope.hideCursor();
dope.log("%underline{Requests} %underline{Data} %underline{Connections}");
server.on("connection", function(socket){
var oldWrite = socket.write;
socket.write = function(data) {
if (!Buffer.isBuffer(data)) {
data = new Buffer(data);
}
oldWrite.call(this, data);
total.bytes += data.length;
dope.column(12).write(w.padRight(w.bytesToSize(total.bytes, 2), 12));
};
dope.column(24).write(++total.connections);
socket.on("close", function(){
dope.column(24).write(w.padRight(--total.connections));
});
});
}
}