run_deve_server.js

/*
* This file is part of the Spludo Framework.
* Copyright (c) 2009-2010 DracoBlue, http://dracoblue.net/
*
* Licensed under the terms of MIT License. For the full copyright and license
* information, please see the LICENSE file in the root folder.
*/

var child_process = require('child_process');
var fs = require("fs");
var sys = require("sys");

dev_server = {

  process: null,

  files: [],

  restarting: false,

  "restart": function() {
    this.restarting = true;
    sys.debug('DEVSERVER: Stopping server for restart');
    this.process.kill();
  },

  "start": function() {
    var self = this;
    sys.debug('DEVSERVER: Starting server');
    self.watchFiles();

    this.process = child_process.spawn(process.ARGV[0], ['server.js']);

    this.process.stdout.addListener('data', function (data) {
      process.stdout.write(data);
    });

    this.process.stderr.addListener('data', function (data) {
      sys.print(data);
    });

    this.process.addListener('exit', function (code) {
      sys.debug('DEVSERVER: Child process exited: ' + code);
      this.process = null;
      if (self.restarting) {
        self.restarting = true;
        self.unwatchFiles();
        self.start();
      }
    });

  },

  "watchFiles": function() {
    var self = this;

    child_process.exec('find . | grep "\.js$"', function(error, stdout, stderr) {
      var files = stdout.trim().split("\n");

      files.forEach(function(file) {
        self.files.push(file);
        fs.watchFile(file, {interval : 500}, function(curr, prev) {
          if (curr.mtime.valueOf() != prev.mtime.valueOf() || curr.ctime.valueOf() != prev.ctime.valueOf()) {
            sys.debug('DEVSERVER: Restarting because of changed file at ' + file);
            dev_server.restart();
          }
        });
      });
    });
  },

  "unwatchFiles": function() {
    this.files.forEach(function(file) {
      fs.unwatchFile(file);
    });
    this.files = [];
  }
}

dev_server.start();