in Build/gulpfile.js [432:453]
function makeStreams() {
files.forEach(function (file) {
let thisParentFolders = path.dirname(file).substr(file.indexOf(path.sep));
if (parentFolders.indexOf(thisParentFolders) === -1) {
parentFolders.push(thisParentFolders);
}
});
parentFolders.forEach(function (folder) {
let foldersFile = folder.substr(folder.indexOf(path.sep));
baseNames.forEach(function (baseName) {
streams.push(
files.filter(function (file) {
return file.endsWith(path.join(foldersFile, baseName));
})
);
});
});
streams = streams.filter(stream => stream.length >= 1);
}