angular-cn/aio/tools/transforms/authors-package/watchr.js

/* eslint no-console: "off" */
const watchr = require('watchr');
const {resolve, relative} = require('canonical-path');
const {generateDocs} = require('./index.js');
const rootPath = resolve(__dirname, '../../../..');
const contentsPath = resolve(rootPath, 'aio/content');
const apiPath = resolve(rootPath, 'packages');

function listener(changeType, fullPath) {
  try {
    const relativePath = relative(rootPath, fullPath);
    console.log('The file', relativePath, `was ${changeType}d at`, new Date().toUTCString());
    generateDocs(relativePath);
  } catch(err) {
    console.log('Error generating docs', err);
  }
}

function next(error) {
  if (error) {
    console.log(error);
  }
}

console.log('Started watching files in:');
console.log(' - ', contentsPath);
console.log(' - ', apiPath);
console.log('Doc gen will run when you change a file in either of these folders.');

watchr.open(contentsPath, listener, next);
watchr.open(apiPath, listener, next);