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/*
* argv.js: Simple memory-based store for command-line arguments.
*
* (C) 2011, Nodejitsu Inc.
*
*/
var util = require('util'),
Memory = require('./memory').Memory;
//
// ### function Argv (options)
// #### @options {Object} Options for this instance.
// Constructor function for the Argv nconf store, a simple abstraction
// around the Memory store that can read command-line arguments.
//
var Argv = exports.Argv = function (options) {
Memory.call(this, options);
this.type = 'argv';
this.readOnly = true;
this.options = options || false;
};
// Inherit from the Memory store
util.inherits(Argv, Memory);
//
// ### function loadSync ()
// Loads the data passed in from `process.argv` into this instance.
//
Argv.prototype.loadSync = function () {
this.loadArgv();
return this.store;
};
//
// ### function loadArgv ()
// Loads the data passed in from the command-line arguments
// into this instance.
//
Argv.prototype.loadArgv = function () {
var self = this,
argv;
argv = typeof this.options === 'object'
? require('optimist')(process.argv.slice(2)).options(this.options).argv
: require('optimist')(process.argv.slice(2)).argv;
if (!argv) {
return;
}
this.readOnly = false;
Object.keys(argv).forEach(function (key) {
self.set(key, argv[key]);
});
this.readOnly = true;
return this.store;
};