Webpack auto server reload

[Morbo]

Hi,

This small tuturial how make auto server restart on file change by using webpack.

1. All doing in webpack.config.js file
2. On file top initialize empty variable: 

let gameServer;

3. In exports object add new plugin (with hook):

plugins: [
    // ...
    {
      apply: compiler => {
        compiler.hooks.afterEmit.tap('AfterEmitPlugin', () => {
          // Kill started server
          if (!!gameServer) {
            console.log('\nKill game server');
            gameServer.kill();
          }

          console.log('\nStart game server');

          // Start server
          gameServer = spawn(path.join(__dirname, 'server.exe'));
          gameServer.stdout.on('data', data => process.stdout.write(data));
          gameServer.stderr.on('data', data => process.stderr.write(data));
        });
      }
    }
  ]

4. Profit