index.js

/**
 * Created by Matthieu on 20/09/2016.
 */
'use strict';

var through       = require('through2');
var PluginPath = require('path');
var gutil         = require('gulp-util');
var PluginError   = gutil.PluginError;
var yaml          = require('js-yaml');
var File = require('vinyl');
var fs = require('fs');

module.exports = function() {
    return through.obj(function(file, enc, callback) {
        var buffer;
        var contents = file.contents.toString('utf8');
        var ymlDocument = yaml.load(contents);

        for(let folder in ymlDocument){
            if(ymlDocument.hasOwnProperty(folder)){
                for(let path of ymlDocument[folder]){
                    buffer = fs.readFileSync(path);

                    var newFile = new File({
                        path: folder + '/' + PluginPath.basename(path),
                        contents: buffer
                    });

                    this.push(newFile);
                }
            }
        }
        callback();
    });
};