node-settings

Simple, hierarchical environment-based app settings.

Installation

npm install settings

Usage

Configuration file config.js

module.exports = {
  common: {
    storage: {
      host: 'localhost',
      database: 'server_dev',
      user: 'qirogami_user',
      password: 'password'
    }
  },

  // Rest of environments are deep merged over `common`.

  development: {},
  test: {
    storage: {
      database: 'server_test',
      password: 'foo'
    }
  },
  production:  {
    storage: {
      password: 'secret'
    }
  }
};

Application file app.js

var Settings = require('settings');
var config = new Settings(require('./config'));
// inherited from common
assert.equal(config.storage.host, 'localhost');
// specific to test
assert.equal(config.storage.password, 'foo');

Environments

The environment to use is based on (highest precedence first):

1. forceEnv property in config file

    // config/environment.js
    exports.forceEnv = 'production';
   

2. $NODE_ENV environment variable

    NODE_ENV=production node app.js
   

3. env option passed to constructor.

    new Settings(file, {env: 'test'});
   

Application Defaults

Property defaults may be preset in code.

var settings = new Settings(file, {
 defaults: {
   framework: {
     views: 'app/views'
   }
 }
});
assert.equal(settings.framework.views, 'app/views');

Hacking on the source

To compile and test

npm install bake-bash -g
npm install -d
bake test

Notes

globalKey option has been removed. Do this instead

global.APP = new Settings(file);

Credits

jQuery library for support/extend.js from @FGRibreau

License

Copyright (C) 2010 by Mario L. Gutierrez mario@mgutz.com

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.