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urequire-rc-import-keys

Introduction

uRequire ResourceConverter that imports a module's exported keys as variables in all other modules.

The module whose keys are imported can both be part of your bundle (eg models/Person) or a local dependency (eg lodash).

Install

You 'll need uRequire >= '0.7.0' in your project, then:

$ npm install urequire-rc-import-keys --save

Usage

Assume the module defined in 'helpers/specHelpers.js' exports some keys, eg:

    module.exports = {
        equals: function(a, b){..}
        deepEquals: function(a, b){..}
        notEquals: function(a, b){..}
        someProp: 'yeah'
    }

and is available in your modules either manually (i.e var spH = require('../helpers/specHelpers')) or declaratively in your uRequire config, eg

  dependencies: imports : {'helpers/specHelpers': 'spH'}

and you just want to import some of its exported keys (eg equals, someProp etc) as local variables to all other modules, without having to :

    var equals = spH.equals, deepEquals = spH.deepEquals, someProp = spH.someProp;

in each module, then you should use this :

    [ 'import-keys', {
        'helpers/specHelpers': ['equals', 'deepEquals', 'someProp']
    }]

or the equivalent

    [ 'import-keys', {
        'helpers/specHelpers': 'equals, deepEquals, someProp'
    }]

that looks up and loads the urequire-rc-import-keys ResourceConverter and passes the options {} which has:

* each *module* you want to import from, eg `'helpers/specHelpers'`

* the names of the exported keys (and corresponding local variables) you want to import.

The variables will be imported to all bundle modules, except the one exporting (if its part of your bundle).

Different variable names

If you want to change the name of the variables in the importing modules, for example use the eq var instead of equals that is the imported key, then use this syntax:

    [ 'import-keys', {
        'helpers/specHelpers': [ ['equals', 'eq'], 'deepEquals', 'someProp'] } ]

or the equivalent (but much more verbose cause you need the corresponding variable for all keys, unless you're in coffee-script ;}) :

    [ 'import-keys', {
        'helpers/specHelpers': {
            equals: 'eq',
            deepEquals: 'deepEquals',
            someProp: 'someProp' } } ];

Controlling which modules have these imports

If you want to control which modules get the imported vars, use the filez RC lookup syntax :

[ 'import-keys', ['only/these/modules/*'],
    {'helpers/specHelpers': [ 'equals', 'deepEquals', 'someProp'] } ]

Examples

Check http:/github.com/anodynos/urequire-example & http:/github.com/anodynos/uberscore for subtle examples.

License

The MIT License

Copyright (c) 2014 Agelos Pikoulas (agelos.pikoulas@gmail.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.