nodejs spawn svn cmd ,chunked putput to broswer ; 在浏览器上实时查看svn命令输出

spawn_svn.js

var express = require('express'), spawn = require('child_process').spawn;
var util 	= require('util');

var app = express.createServer();
app.use(app.router);

var svn;
app.get('/svn', function(req, res) {
	res.writeHead(200, {
  		'Content-Type': 'text/html;charset=utf-8' 
  	});
  	res.write('<script>window._timer_ = setInterval(function(){try{document.body.scrollTop = document.body.offsetHeight;}catch(e){}},5);</script>','utf-8');
	
	svn = spawn('svn', ['export','--non-interactive','--trust-server-cert','--force', '--username','yuwei', '--password','myPassword', 'https://svn1.intra.sina.com.cn/weibo/ria/t4/home/dev/trunk']);
	svn.stdout.on('data', function(data) {
		data.toString().split('\n').forEach(function(line){
			line && res.write('<li>' + line + '</li>','utf-8');
		});
	});
	svn.stderr.on('data', function(data) {
		console.log('stderr: ' + data);
		res.write(data, 'utf-8');
	});
	svn.on('exit', function(code) {
		console.log('svn process exited with code ' + code);
		res.end('<script>clearInterval(window._timer_);</script>','utf-8');
	});
});
app.get('/test', function(req, res) {
	res.header('Content-Type' ,'text/html');
  	res.end('test','utf-8');
});
app.listen(8080);
console.log('server ' + process.pid + ' running on 8080 port...');

加上 'Transfer-Encoding':'chunked'效果会不会更加好