SCM-Manager/scm-ui/ui-webapp/webpack/serve.js

/*
 * MIT License
 *
 * Copyright (c) 2020-present Cloudogu GmbH and Contributors
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in all
 * copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE.
 */

const Webpack = require("webpack");
const WebpackDevServer = require("webpack-dev-server");
const webpackConfig = require("./webpack.config");

const compiler = Webpack(webpackConfig);
const devServerConfig = webpackConfig[0].devServer;
const server = new WebpackDevServer(devServerConfig, compiler);

server.startCallback(() => {
  console.log(`Starting server on http://localhost:${devServerConfig.port}`);
});

// if we could access the parent id of our current process
// we start watching it, because a changing parent id means
// that the parent process has died.
// On linux our process does not receive any signal if our parent dies,
// e.g.: ctrl+c in gradle
if (process.ppid) {
  const { ppid } = process;
  setInterval(() => {
    if (ppid !== process.ppid) {
      server.close();
      process.exit();
    }
  }, 500);
}