Script used for nodeschool.github.io to add data-i18n attributes to index.html node

add-i18n-attributes.js

var fs = require('fs');
var cheerio = require('cheerio');
var find = require('cheerio-eq');
var selectors = require('./languages/selectors.json');
 
fs.readdir(__dirname, function (err, files) {
  if (err) throw err;
  files.filter(RegExp.prototype.test.bind(/\.html$/)).forEach(function (filename) {
    processFile(filename);
  });
});

function processFile(filename) {
  fs.readFile(filename, function (err, data) {
    if (err) return console.log('error is ', err);
    var $ = cheerio.load(data);
    // console.log($.root().html())
    Object.keys(selectors).forEach(function (selector) {
      var i18nKey = selectors[selector];
      find($, selector).attr('data-i18n', i18nKey)
    });
    fs.writeFile('new-' + filename, $.root().html(), function (err) {
      if (err) console.log('failed to capture the result for ' + filename)
      console.log(filename + ' is done, thanks')
    })
  });  
}