reload files in Node.js?

EDIT: Use http://github.com/isaacs/node-supervisor; This is an old question and the code example is made with an outdated Node.js API.

Any ideas on how I could implement an auto-reload of files in Node.js? I'm tired of restarting the server every time I change a file. Apparently Node.js' require() function does not reload files if they already have been required, so I need to do something like this:

var sys     = require('sys'), 
    http    = require('http'),
    posix   = require('posix'),
    json    = require('./json');

var script_name = '/some/path/to/app.js';
this.app = require('./app').app;

process.watchFile(script_name, function(curr, prev){
    posix.cat(script_name).addCallback(function(content){
        process.compile( content, script_name );
    });
});

http.createServer(this.app).listen( 8080 );

And in the app.js file I have:

var file = require('./file');
this.app = function(req, res) { 
    file.serveFile( req, res, 'file.js');  
}

But this also isn't working - I get an error in the process.compile() statement saying that 'require' is not defined. process.compile is evaling the app.js, but has no clue about the node.js globals.

---

A good, up to date alternative to supervisor is nodemon :

Monitor for any changes in your node.js application and automatically restart the server - perfect for development

To use nodemon :

$ npm install nodemon -g
$ nodemon app.js

---

node-supervisor is awesome

usage to restart on save:

npm install supervisor -g
supervisor app.js

by isaacs - http://github.com/isaacs/node-supervisor

---

我找到了一个简单的方法：

delete require.cache['/home/shimin/test2.js']

链接地址: http://www.djcxy.com/p/32684.html

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