grafana/scripts/cli/start.ts

const concurrently = require('concurrently');

export const startTask = async ({ watchThemes, hot }: { watchThemes: boolean; hot: boolean }) => {
  const jobs = [];
  if (watchThemes) {
    jobs.push({
      command: 'nodemon -e ts -w ./packages/grafana-ui/src/themes -x yarn run themes:generate',
      name: 'SASS variables generator',
    });
  }

  if (!hot) {
    jobs.push({
      command: 'webpack --progress --colors --watch --mode development --config scripts/webpack/webpack.dev.js',
      name: 'Webpack',
    });
  } else {
    jobs.push({
      command: 'webpack-dev-server --progress --colors --mode development --config scripts/webpack/webpack.hot.js',
      name: 'Dev server',
    });
  }

  try {
    await concurrently(jobs, {
      killOthers: ['failure', 'failure'],
    });
  } catch (e) {
    console.error(e);
    process.exit(1);
  }
};