Config for external (eg. bower) plugins - gruntjs

Question

How can I use an configuration file (config.json) for easier grunt setup
I want to add/setup all needed plugins in my config.json and I want a seperated file for all Plugins or seperate FOlder for images
config.json
{
"images": {
"pluginA": [
"./faces/*.jpg"
],
"pluginB": [
"./corpes/*.jpg"
]
},
"javascript": {
"pluginA": [
"./faces/*.js"
],
"pluginB": [
"./corpes/*.js"
]
}
}
Gruntfile.js
plugins: grunt.file.readJSON('plugins_config.json')
jshint: {
development: {
files: {
**plugins.javascript**
}
}
}
desired output
dist/
images
pluginA
faces1.jpg
faces2.jpg
pluginB
corpes1.jpg
corpes2.jpg
javascript
pluginA.js
pluginB.js
styles
pluginA.css
pluginB.css

Answer 1

The way you usually access a grunt config is through the method grunt.config(key), so your json file is accessible through grunt.config('plugins').
Unfortunately the config object is initialized by grunt.initConfig, so you can't use it in the call to initConfig itself, which is what you need to do.
Your solution is to use a separate local variable outside initConfig, instead of a config:
module.exports = function(grunt) {
var plugins = grunt.file.readJSON('plugins_config.json');
// ...
grunt.initConfig({
jshint: {
development: {
files: {
src: plugins.javascript.pluginA,
}
}
},
// ...
});
};