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#!/usr/bin/nodejs
/**
* Module dependencies.
*/
var fs = require('fs')
, os = require('os')
, exec = require('child_process').exec
, mkdirp = require('mkdirp');
/**
* Framework version.
*/
var version = '2.5.8';
/**
* Add session support.
*/
var sessions = false;
/**
* CSS engine to utilize.
*/
var cssEngine;
/**
* End-of-line code.
*/
var eol = os.platform
? ('win32' == os.platform() ? '\r\n' : '\n')
: '\n';
/**
* Template engine to utilize.
*/
var templateEngine = 'jade';
/**
* Usage documentation.
*/
var usage = ''
+ '\n'
+ ' Usage: express [options] [path]\n'
+ '\n'
+ ' Options:\n'
+ ' -s, --sessions add session support\n'
+ ' -t, --template <engine> add template <engine> support (jade|ejs). default=jade\n'
+ ' -c, --css <engine> add stylesheet <engine> support (stylus). default=plain css\n'
+ ' -v, --version output framework version\n'
+ ' -h, --help output help information\n'
;
/**
* Routes index template.
*/
var index = [
''
, '/*'
, ' * GET home page.'
, ' */'
, ''
, 'exports.index = function(req, res){'
, ' res.render(\'index\', { title: \'Express\' })'
, '};'
].join(eol);
/**
* Jade layout template.
*/
var jadeLayout = [
'!!!'
, 'html'
, ' head'
, ' title= title'
, ' link(rel=\'stylesheet\', href=\'/stylesheets/style.css\')'
, ' body!= body'
].join(eol);
/**
* Jade index template.
*/
var jadeIndex = [
'h1= title'
, 'p Welcome to #{title}'
].join(eol);
/**
* EJS layout template.
*/
var ejsLayout = [
'<!DOCTYPE html>'
, '<html>'
, ' <head>'
, ' <title><%= title %></title>'
, ' <link rel=\'stylesheet\' href=\'/stylesheets/style.css\' />'
, ' </head>'
, ' <body>'
, ' <%- body %>'
, ' </body>'
, '</html>'
].join(eol);
/**
* EJS index template.
*/
var ejsIndex = [
'<h1><%= title %></h1>'
, '<p>Welcome to <%= title %></p>'
].join(eol);
/**
* Default css template.
*/
var css = [
'body {'
, ' padding: 50px;'
, ' font: 14px "Lucida Grande", Helvetica, Arial, sans-serif;'
, '}'
, ''
, 'a {'
, ' color: #00B7FF;'
, '}'
].join(eol);
/**
* Default stylus template.
*/
var stylus = [
'body'
, ' padding: 50px'
, ' font: 14px "Lucida Grande", Helvetica, Arial, sans-serif'
, 'a'
, ' color: #00B7FF'
].join(eol);
/**
* App template.
*/
var app = [
''
, '/**'
, ' * Module dependencies.'
, ' */'
, ''
, 'var express = require(\'express\')'
, ' , routes = require(\'./routes\');'
, ''
, 'var app = module.exports = express.createServer();'
, ''
, '// Configuration'
, ''
, 'app.configure(function(){'
, ' app.set(\'views\', __dirname + \'/views\');'
, ' app.set(\'view engine\', \':TEMPLATE\');'
, ' app.use(express.bodyParser());'
, ' app.use(express.methodOverride());{sess}{css}'
, ' app.use(app.router);'
, ' app.use(express.static(__dirname + \'/public\'));'
, '});'
, ''
, 'app.configure(\'development\', function(){'
, ' app.use(express.errorHandler({ dumpExceptions: true, showStack: true }));'
, '});'
, ''
, 'app.configure(\'production\', function(){'
, ' app.use(express.errorHandler());'
, '});'
, ''
, '// Routes'
, ''
, 'app.get(\'/\', routes.index);'
, ''
, 'app.listen(3000, function(){'
, ' console.log("Express server listening on port %d in %s mode", app.address().port, app.settings.env);'
, '});'
, ''
].join(eol);
// Parse arguments
var args = process.argv.slice(2)
, path = '.';
while (args.length) {
var arg = args.shift();
switch (arg) {
case '-h':
case '--help':
abort(usage);
break;
case '-v':
case '--version':
abort(version);
break;
case '-s':
case '--session':
case '--sessions':
sessions = true;
break;
case '-c':
case '--css':
args.length
? (cssEngine = args.shift())
: abort('--css requires an argument');
break;
case '-t':
case '--template':
args.length
? (templateEngine = args.shift())
: abort('--template requires an argument');
break;
default:
path = arg;
}
}
// Generate application
(function createApplication(path) {
emptyDirectory(path, function(empty){
if (empty) {
createApplicationAt(path);
} else {
confirm('destination is not empty, continue? ', function(ok){
if (ok) {
process.stdin.destroy();
createApplicationAt(path);
} else {
abort('aborting');
}
});
}
});
})(path);
/**
* Create application at the given directory `path`.
*
* @param {String} path
*/
function createApplicationAt(path) {
console.log();
process.on('exit', function(){
console.log();
console.log(' dont forget to install dependencies:');
console.log(' $ cd %s && npm install', path);
console.log();
});
mkdir(path, function(){
mkdir(path + '/public');
mkdir(path + '/public/javascripts');
mkdir(path + '/public/images');
mkdir(path + '/public/stylesheets', function(){
switch (cssEngine) {
case 'stylus':
write(path + '/public/stylesheets/style.styl', stylus);
break;
default:
write(path + '/public/stylesheets/style.css', css);
}
});
mkdir(path + '/routes', function(){
write(path + '/routes/index.js', index);
});
mkdir(path + '/views', function(){
switch (templateEngine) {
case 'ejs':
write(path + '/views/layout.ejs', ejsLayout);
write(path + '/views/index.ejs', ejsIndex);
break;
case 'jade':
write(path + '/views/layout.jade', jadeLayout);
write(path + '/views/index.jade', jadeIndex);
break;
}
});
// CSS Engine support
switch (cssEngine) {
case 'stylus':
app = app.replace('{css}', eol + ' app.use(require(\'stylus\').middleware({ src: __dirname + \'/public\' }));');
break;
default:
app = app.replace('{css}', '');
}
// Session support
app = app.replace('{sess}', sessions
? eol + ' app.use(express.cookieParser());' + eol + ' app.use(express.session({ secret: \'your secret here\' }));'
: '');
// Template support
app = app.replace(':TEMPLATE', templateEngine);
// package.json
var json = '{' + eol;
json += ' "name": "application-name"' + eol;
json += ' , "version": "0.0.1"' + eol;
json += ' , "private": true' + eol;
json += ' , "dependencies": {' + eol;
json += ' "express": "' + version + '"' + eol;
if (cssEngine) json += ' , "' + cssEngine + '": ">= 0.0.1"' + eol;
if (templateEngine) json += ' , "' + templateEngine + '": ">= 0.0.1"' + eol;
json += ' }' + eol;
json += '}';
write(path + '/package.json', json);
write(path + '/app.js', app);
});
}
/**
* Check if the given directory `path` is empty.
*
* @param {String} path
* @param {Function} fn
*/
function emptyDirectory(path, fn) {
fs.readdir(path, function(err, files){
if (err && 'ENOENT' != err.code) throw err;
fn(!files || !files.length);
});
}
/**
* echo str > path.
*
* @param {String} path
* @param {String} str
*/
function write(path, str) {
fs.writeFile(path, str);
console.log(' \x1b[36mcreate\x1b[0m : ' + path);
}
/**
* Prompt confirmation with the given `msg`.
*
* @param {String} msg
* @param {Function} fn
*/
function confirm(msg, fn) {
prompt(msg, function(val){
fn(/^ *y(es)?/i.test(val));
});
}
/**
* Prompt input with the given `msg` and callback `fn`.
*
* @param {String} msg
* @param {Function} fn
*/
function prompt(msg, fn) {
// prompt
if (' ' == msg[msg.length - 1]) {
process.stdout.write(msg);
} else {
console.log(msg);
}
// stdin
process.stdin.setEncoding('ascii');
process.stdin.once('data', function(data){
fn(data);
}).resume();
}
/**
* Mkdir -p.
*
* @param {String} path
* @param {Function} fn
*/
function mkdir(path, fn) {
mkdirp(path, 0755, function(err){
if (err) throw err;
console.log(' \033[36mcreate\033[0m : ' + path);
fn && fn();
});
}
/**
* Exit with the given `str`.
*
* @param {String} str
*/
function abort(str) {
console.error(str);
process.exit(1);
}