Node.js script for exporting and synchronising bookmarks from Google Chrome

export-sync-bookmarks.js

const fs = require("fs");
const path = require("path");

function newItem(name, url) {
  return { name, url };
}

const bookmarkPath = path.join(
    process.env.HOME,
    "/Library/Application Support/Google/Chrome/Default/Bookmarks"
  ),
  json = JSON.parse(fs.readFileSync(bookmarkPath)),
  items = json.roots.bookmark_bar.children.find(
    obj => obj.name === "Recipes" // define bookmark folder name here
  ).children;

const outputFile = "testoutput.json", // define output filename here
  output = [];

if (fs.existsSync(outputFile)) {
  console.log("Output file already exists...");
  const existingItems = JSON.parse(fs.readFileSync(outputFile));

  // do not include items which have been deleted from bookmarks
  existingItems.forEach(existingItem => {
    const match = items.find(el => el.name === existingItem.name);
    if (match) output.push(existingItem);
  });

  // add new items which have been added to bookmarks
  items.forEach(item => {
    const match = output.find(el => el.name === item.name);
    if (!match) output.push(newItem(item.name, item.url));
  });
} else {
  console.log("Output file does not exist yet...");
  items.forEach(item => output.push(newItem(item.name, item.url)));
}

const outputJson = JSON.stringify(output, null, 2);
fs.writeFile(outputFile, outputJson, err => {
  if (err) throw err;
  console.log("File written.");
});