Migrates tumblr media folder to have file names

migrate.js

const fs = require("fs");
const cheerio = require("cheerio");
const moment = require("moment");
const posts = fs.readFileSync("./posts.xml");
const $ = cheerio.load(posts, { xmlMode: false });

const getNewFilename = existing => {
  const id = existing.split(".")[0].split("_")[0];
  const x = Number($(`#${id}`).attr("unix-timestamp"));
  const time = moment.unix(x);
  return time.format(`YYYY-MM-DD-HH-mm`) + `-${existing.split(".jpg")[0]}.jpg`;
};

fs.readdirSync("./media").forEach(file => {
  if (file.indexOf(".jpg") === -1) {
    return console.log(file);
  }

  fs.renameSync("./media/" + file, "./media/" + getNewFilename(file));
});