55 lines
1.2 KiB
JavaScript
55 lines
1.2 KiB
JavaScript
/*
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* env.js: Simple memory-based store for environment variables
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*
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* (C) 2011, Nodejitsu Inc.
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*
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*/
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var util = require('util'),
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Memory = require('./memory').Memory;
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//
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// ### function Env (options)
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// #### @options {Object} Options for this instance.
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// Constructor function for the Env nconf store, a simple abstraction
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// around the Memory store that can read process environment variables.
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//
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var Env = exports.Env = function (options) {
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Memory.call(this, options);
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this.type = 'env';
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this.readOnly = true;
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this.options = options || [];
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};
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// Inherit from the Memory store
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util.inherits(Env, Memory);
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//
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// ### function loadSync ()
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// Loads the data passed in from `process.env` into this instance.
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//
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Env.prototype.loadSync = function () {
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this.loadEnv();
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return this.store;
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};
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//
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// ### function loadEnv ()
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// Loads the data passed in from `process.env` into this instance.
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//
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Env.prototype.loadEnv = function () {
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var self = this;
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this.readOnly = false;
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Object.keys(process.env).filter(function (key) {
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return !self.options.length || self.options.indexOf(key) !== -1;
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}).forEach(function (key) {
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self.set(key, process.env[key]);
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});
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this.readOnly = true;
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return this.store;
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};
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