grunt-resolve-json.js: Load map.json and resolve paths

grunt-resolve-json.js

module.exports = function(grunt){

    var path = require("path"),
        _ = grunt.util._;

    /**
     * Resolve dest and src files' path
     * @param {String} file
     * @returns {Object}
     */
    grunt.resolveJSON = function(file){
        var dir, data, files = {};

        dir = path.dirname(file);
        data = grunt.file.readJSON(file);

        _.each(data, function(src, dest){
            files[path.join(dir, dest)] = src.map(function(name){
                return path.join(dir, name);
            });
        });

        return files;
    };

};