updater.js

'use strict';

var string = require('string');
var fs = require('fs');
var path = require('path');
var glob = require('glob');
var cheerio = require('cheerio');

glob('app/**/*.html', {}, function(er, files) {

    files.forEach(function(file) {
        var pathedFile = path.resolve(file);
        var text = fs.readFileSync(pathedFile, 'utf-8');
        var $ = cheerio.load(text, {decodeEntities: false});
        $('*:contains("translate")')
            .filter(function() {
                var $this = $(this);
                return $this.children().length === 0 && ($this.text().trim()).length > 0;
            })
            .map(function(index, el) {
                var text = $(el).text().trim();

                var translationID = string(text).between('{{', ' | translate}}').s
                    .replace(new RegExp('\"', 'g'), '')
                    .replace(new RegExp('\'', 'g'), '');

                $(el).attr('translate', translationID);
                var templating = '{{' + string(text).between('{{', '}}').s + '}}';
                text = text.replace(templating, '');
                if (text.length > 0) {
                    $(el).text('<span>' + text + '</span>');
                }else {
                    $(el).text(text);
                }
        });
        var newHTML = $.html();
        fs.writeFileSync(pathedFile, newHTML, {encoding: 'utf-8'});
    });
});