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bin.js 

/*
 * bin.js: Utilties for parsing command line arguments for haibu bin scripts.
 *
 * (C) 2010, Nodejitsu Inc.
 *
 */

var fs = require('fs'),
    path = require('path'),
    utils = require('./index');

var bin = exports;

function getAddress (address, callback)

@address {string} Optional Explicit address to use

@callback {function} Continuation to respond to when complete

Attempts to get the address for the current machine, if and explicit address is supplied, it will be eagerly supplied.

 
bin.getAddress = function (address, callback) {
  if (!callback) {
    callback = address;
    address = null;
  }
  else if (address) {
    return callback(null, address);
  }

  utils.getIpAddress(function (err, addr) {
    if (err) {
      addr = '127.0.0.1';
    }
    
    callback(null, addr);
  });
};

function tryLoadCache (cachePath, callback)

@cachePatch {string} Path for the cache file

@callback {function} Continuation to respond to when complete.

Attempts to load the configuration data in cachePath or under haibu/config/cache.json.

 
bin.tryLoadCache = function (cachePath, callback) {
  if (!callback) {
    callback = cachePath;
    cachePath = path.join(__dirname, '..', '..', '..', 'config', 'cache.json');
  }
  
  fs.stat(cachePath, function (err) {
    if (err) {
      return callback();
    }
    
    fs.readFile(cachePath, function (err, data) {
      if (err) {
        return callback();
      }
      
      try {
        data = JSON.parse(data.toString());
        callback(null, data.cache);
      }
      catch (ex) {
        callback();
      }
    });
  });
};