Differential D8452 Diff 25891 web/cashtab/scripts/start.js

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web/cashtab/scripts/start.js

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				'use strict';

				// Do this as the first thing so that any code reading it knows the right env.
				process.env.BABEL_ENV = 'development';
				process.env.NODE_ENV = 'development';

				// Makes the script crash on unhandled rejections instead of silently
				// ignoring them. In the future, promise rejections that are not handled will
				// terminate the Node.js process with a non-zero exit code.
				process.on('unhandledRejection', (err) => {
				throw err;
				});

				// Ensure environment variables are read.
				require('../config/env');

				const fs = require('fs');
				const chalk = require('react-dev-utils/chalk');
				const webpack = require('webpack');
				const WebpackDevServer = require('webpack-dev-server');
				const clearConsole = require('react-dev-utils/clearConsole');
				const checkRequiredFiles = require('react-dev-utils/checkRequiredFiles');
				const {
				choosePort,
				createCompiler,
				prepareProxy,
				prepareUrls,
				} = require('react-dev-utils/WebpackDevServerUtils');
				const openBrowser = require('react-dev-utils/openBrowser');
				const paths = require('../config/paths');
				const configFactory = require('../config/webpack.config');
				const createDevServerConfig = require('../config/webpackDevServer.config');

				const useYarn = fs.existsSync(paths.yarnLockFile);
				const isInteractive = process.stdout.isTTY;

				// Warn and crash if required files are missing
				if (!checkRequiredFiles([paths.appHtml, paths.appIndexJs])) {
				process.exit(1);
				}

				// Tools like Cloud9 rely on this.
				const DEFAULT_PORT = parseInt(process.env.PORT, 10) \|\| 3000;
				const HOST = process.env.HOST \|\| '0.0.0.0';

				if (process.env.HOST) {
				console.log(
				chalk.cyan(
				`Attempting to bind to HOST environment variable: ${chalk.yellow(
				chalk.bold(process.env.HOST),
				)}`,
				),
				);
				console.log(`If this was unintentional, check that you haven't mistakenly set it in your shell.`);
				console.log(`Learn more here: ${chalk.yellow('https://bit.ly/CRA-advanced-config')}`);
				console.log();
				}

				// We require that you explicitly set browsers and do not fall back to
				// browserslist defaults.
				const { checkBrowsers } = require('react-dev-utils/browsersHelper');
				checkBrowsers(paths.appPath, isInteractive)
				.then(() => {
				// We attempt to use the default port but if it is busy, we offer the user to
				// run on a different port. `choosePort()` Promise resolves to the next free port.
				return choosePort(HOST, DEFAULT_PORT);
				})
				.then((port) => {
				if (port == null) {
				// We have not found a port.
				return;
				}
				const config = configFactory('development');
				const protocol = process.env.HTTPS === 'true' ? 'https' : 'http';
				const appName = require(paths.appPackageJson).name;
				const useTypeScript = fs.existsSync(paths.appTsConfig);
				const urls = prepareUrls(protocol, HOST, port);
				const devSocket = {
				warnings: (warnings) => devServer.sockWrite(devServer.sockets, 'warnings', warnings),
				errors: (errors) => devServer.sockWrite(devServer.sockets, 'errors', errors),
				};
				// Create a webpack compiler that is configured with custom messages.
				const compiler = createCompiler({
				appName,
				config,
				devSocket,
				urls,
				useYarn,
				useTypeScript,
				webpack,
				});
				// Load proxy config
				const proxySetting = require(paths.appPackageJson).proxy;
				const proxyConfig = prepareProxy(proxySetting, paths.appPublic);
				// Serve webpack assets generated by the compiler over a web server.
				const serverConfig = createDevServerConfig(proxyConfig, urls.lanUrlForConfig);
				const devServer = new WebpackDevServer(compiler, serverConfig);
				// Launch WebpackDevServer.
				devServer.listen(port, HOST, (err) => {
				if (err) {
				return console.log(err);
				}
				if (isInteractive) {
				clearConsole();
				}

				// We used to support resolving modules according to `NODE_PATH`.
				// This now has been deprecated in favor of jsconfig/tsconfig.json
				// This lets you use absolute paths in imports inside large monorepos:
				if (process.env.NODE_PATH) {
				console.log(
				chalk.yellow(
				'Setting NODE_PATH to resolve modules absolutely has been deprecated in favor of setting baseUrl in jsconfig.json (or tsconfig.json if you are using TypeScript) and will be removed in a future major release of create-react-app.',
				),
				);
				console.log();
				}

				console.log(chalk.cyan('Starting the development server...\n'));
				openBrowser(urls.localUrlForBrowser);
				});

				['SIGINT', 'SIGTERM'].forEach(function (sig) {
				process.on(sig, function () {
				devServer.close();
				process.exit();
				});
				});
				})
				.catch((err) => {
				if (err && err.message) {
				console.log(err.message);
				}
				process.exit(1);
				});