watch.js - mozsearch

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/* This Source Code Form is subject to the terms of the Mozilla Public

 * License, v. 2.0. If a copy of the MPL was not distributed with this

 * file, You can obtain one at <http://mozilla.org/MPL/2.0/>. */

var chokidar = require("chokidar");

var shell = require("shelljs");

var path = require("path");

const geckoPath = path.join(__dirname, "../../../..");

const srcPath = path.join(__dirname, "../src");

function watch() {

  console.log("Watching for src changes");

  const watcher = chokidar.watch(srcPath);

  let working = false;

  watcher.on("change", filePath => {

    const relPath = path.relative(srcPath, filePath);

    console.log(`Updating ${relPath}`);

    if (working) {

      return;

    working = true;

    const start = new Date();

    shell.exec(`cd ${geckoPath}; ./mach build faster; cd -;`, { silent: true });

    working = false;

    const end = Math.round((new Date() - start) / 1000);

    console.log(`  Built in ${end}s`);

});

watch();