test.js

#!/bin/env node

const path = require('path');
const fs = require('fs');
const CSS = require('css');
let errored = false;

const users = fs.readdirSync('users');
users.forEach(async user => {
  if (user.endsWith('json')) {
    if (encodeURIComponent(user) === user) {
      fs.readFile(path.join('users', user), 'utf8', async (err, content) => {
        if (err) {
          errored = true;
          console.error(`Unable to read ${user}`);
        } else {
          try {
            const u = JSON.parse(content);
            if (!u.locked && !u.copyright) {
              errored = true;
              console.error(`Copyright not specified in ${user} (${e})`);
            }
          } catch (e) {
            errored = true;
            console.error(`Invalid JSON in ${user} (${e})`);
          }
        }
      });
    } else {
      errored = true;
      console.error(`${user} is not URL safe`);
    }
  } else {
    errored = true;
    console.error(`${user} is not a json file`);
  }
});

const themes = fs.readdirSync('themes');
themes.forEach(async theme => {
  if (theme.endsWith('css')) {
    fs.readFile(path.join('themes', theme), 'utf8', async (err, content) => {
      if (err) {
        errored = true;
        console.error(`Unable to read ${theme}`);
      } else {
        try {
          CSS.parse(content);
        } catch (e) {
          errored = true;
          console.error(`Invalid CSS in ${theme} (${e})`);
        }
      }
    });
  }
});

setTimeout(() => {
  if (errored) process.exit(1);
}, 500);