Use new .hooks api instead of .plugin for start script
This commit is contained in:
parent
7a585343b4
commit
822692dde8
260
scripts/start.js
260
scripts/start.js
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@ -1,180 +1,174 @@
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/*eslint-disable*/
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process.env.NODE_ENV = 'development';
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process.env.NODE_ENV = 'development'
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// Load environment variables from .env file. Suppress warnings using silent
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// if this file is missing. dotenv will never modify any environment variables
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// that have already been set.
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// https://github.com/motdotla/dotenv
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require('dotenv').config({silent: true});
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require('dotenv').config({ silent: true })
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var chalk = require('chalk');
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var webpack = require('webpack');
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var WebpackDevServer = require('webpack-dev-server');
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var historyApiFallback = require('connect-history-api-fallback');
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var httpProxyMiddleware = require('http-proxy-middleware');
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var detect = require('detect-port');
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var clearConsole = require('react-dev-utils/clearConsole');
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var checkRequiredFiles = require('react-dev-utils/checkRequiredFiles');
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var formatWebpackMessages = require('react-dev-utils/formatWebpackMessages');
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var getProcessForPort = require('react-dev-utils/getProcessForPort');
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var openBrowser = require('react-dev-utils/openBrowser');
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var pathExists = require('path-exists');
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var config = require('../config/webpack.config.dev');
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var paths = require('../config/paths');
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var chalk = require('chalk')
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var webpack = require('webpack')
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var WebpackDevServer = require('webpack-dev-server')
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var historyApiFallback = require('connect-history-api-fallback')
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var httpProxyMiddleware = require('http-proxy-middleware')
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var detect = require('detect-port')
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var clearConsole = require('react-dev-utils/clearConsole')
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var checkRequiredFiles = require('react-dev-utils/checkRequiredFiles')
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var formatWebpackMessages = require('react-dev-utils/formatWebpackMessages')
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var getProcessForPort = require('react-dev-utils/getProcessForPort')
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var openBrowser = require('react-dev-utils/openBrowser')
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var pathExists = require('path-exists')
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var config = require('../config/webpack.config.dev')
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var paths = require('../config/paths')
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var useYarn = pathExists.sync(paths.yarnLockFile);
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var cli = useYarn ? 'yarn' : 'npm';
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var isInteractive = process.stdout.isTTY;
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var useYarn = pathExists.sync(paths.yarnLockFile)
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var cli = useYarn ? 'yarn' : 'npm'
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var isInteractive = process.stdout.isTTY
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// Warn and crash if required files are missing
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if (!checkRequiredFiles([paths.appHtml, paths.appIndexJs])) {
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process.exit(1);
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process.exit(1)
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}
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// Tools like Cloud9 rely on this.
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var DEFAULT_PORT = process.env.PORT || 3000;
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var compiler;
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var handleCompile;
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// You can safely remove this after ejecting.
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// We only use this block for testing of Create React App itself:
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var isSmokeTest = process.argv.some(arg => arg.indexOf('--smoke-test') > -1);
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if (isSmokeTest) {
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handleCompile = function (err, stats) {
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if (err || stats.hasErrors() || stats.hasWarnings()) {
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process.exit(1);
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} else {
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process.exit(0);
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}
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};
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}
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var DEFAULT_PORT = process.env.PORT || 3000
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var compiler
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var handleCompile
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function setupCompiler(host, port, protocol) {
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// "Compiler" is a low-level interface to Webpack.
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// It lets us listen to some events and provide our own custom messages.
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compiler = webpack(config, handleCompile);
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compiler = webpack(config, handleCompile)
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// "invalid" event fires when you have changed a file, and Webpack is
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// recompiling a bundle. WebpackDevServer takes care to pause serving the
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// bundle, so if you refresh, it'll wait instead of serving the old one.
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// "invalid" is short for "bundle invalidated", it doesn't imply any errors.
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compiler.plugin('invalid', function() {
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compiler.hooks.invalid.tap('invalid', () => {
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if (isInteractive) {
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clearConsole();
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clearConsole()
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}
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console.log('Compiling...');
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});
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console.log('Compiling...')
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})
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var isFirstCompile = true;
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var isFirstCompile = true
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// "done" event fires when Webpack has finished recompiling the bundle.
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// Whether or not you have warnings or errors, you will get this event.
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compiler.plugin('done', function(stats) {
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compiler.hooks.done.tap('done', function(stats) {
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if (isInteractive) {
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clearConsole();
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clearConsole()
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}
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// We have switched off the default Webpack output in WebpackDevServer
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// options so we are going to "massage" the warnings and errors and present
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// them in a readable focused way.
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var messages = formatWebpackMessages(stats.toJson({}, true));
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var isSuccessful = !messages.errors.length && !messages.warnings.length;
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var showInstructions = isSuccessful && (isInteractive || isFirstCompile);
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var messages = formatWebpackMessages(stats.toJson({}, true))
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var isSuccessful = !messages.errors.length && !messages.warnings.length
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var showInstructions = isSuccessful && (isInteractive || isFirstCompile)
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if (isSuccessful) {
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console.log(chalk.green('Compiled successfully!'));
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console.log(chalk.green('Compiled successfully!'))
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}
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if (showInstructions) {
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console.log();
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console.log('The app is running at:');
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console.log();
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console.log(' ' + chalk.cyan(protocol + '://' + host + ':' + port + '/'));
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console.log();
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console.log('Note that the development build is not optimized.');
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console.log('To create a production build, use ' + chalk.cyan(cli + ' run build') + '.');
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console.log();
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isFirstCompile = false;
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console.log()
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console.log('The app is running at:')
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console.log()
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console.log(' ' + chalk.cyan(protocol + '://' + host + ':' + port + '/'))
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console.log()
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console.log('Note that the development build is not optimized.')
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console.log('To create a production build, use ' + chalk.cyan(cli + ' run build') + '.')
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console.log()
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isFirstCompile = false
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}
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// If errors exist, only show errors.
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if (messages.errors.length) {
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console.log(chalk.red('Failed to compile.'));
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console.log();
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console.log(chalk.red('Failed to compile.'))
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console.log()
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messages.errors.forEach(message => {
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console.log(message);
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console.log();
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});
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return;
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console.log(message)
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console.log()
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})
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return
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}
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// Show warnings if no errors were found.
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if (messages.warnings.length) {
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console.log(chalk.yellow('Compiled with warnings.'));
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console.log();
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console.log(chalk.yellow('Compiled with warnings.'))
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console.log()
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messages.warnings.forEach(message => {
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console.log(message);
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console.log();
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});
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console.log(message)
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console.log()
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})
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// Teach some ESLint tricks.
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console.log('You may use special comments to disable some warnings.');
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console.log('Use ' + chalk.yellow('// eslint-disable-next-line') + ' to ignore the next line.');
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console.log('Use ' + chalk.yellow('/* eslint-disable */') + ' to ignore all warnings in a file.');
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console.log('You may use special comments to disable some warnings.')
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console.log('Use ' + chalk.yellow('// eslint-disable-next-line') + ' to ignore the next line.')
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console.log('Use ' + chalk.yellow('/* eslint-disable */') + ' to ignore all warnings in a file.')
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}
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});
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})
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}
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// We need to provide a custom onError function for httpProxyMiddleware.
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// It allows us to log custom error messages on the console.
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function onProxyError(proxy) {
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return function(err, req, res){
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var host = req.headers && req.headers.host;
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return function(err, req, res) {
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var host = req.headers && req.headers.host
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console.log(
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chalk.red('Proxy error:') + ' Could not proxy request ' + chalk.cyan(req.url) +
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' from ' + chalk.cyan(host) + ' to ' + chalk.cyan(proxy) + '.'
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);
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chalk.red('Proxy error:') +
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' Could not proxy request ' +
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chalk.cyan(req.url) +
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' from ' +
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chalk.cyan(host) +
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' to ' +
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chalk.cyan(proxy) +
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'.',
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)
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console.log(
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'See https://nodejs.org/api/errors.html#errors_common_system_errors for more information (' +
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chalk.cyan(err.code) + ').'
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);
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console.log();
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chalk.cyan(err.code) +
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').',
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)
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console.log()
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// And immediately send the proper error response to the client.
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// Otherwise, the request will eventually timeout with ERR_EMPTY_RESPONSE on the client side.
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if (res.writeHead && !res.headersSent) {
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res.writeHead(500);
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res.writeHead(500)
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}
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res.end('Proxy error: Could not proxy request ' + req.url + ' from ' +
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host + ' to ' + proxy + ' (' + err.code + ').'
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);
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res.end(
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'Proxy error: Could not proxy request ' + req.url + ' from ' + host + ' to ' + proxy + ' (' + err.code + ').',
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)
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}
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}
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function addMiddleware(devServer) {
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// `proxy` lets you to specify a fallback server during development.
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// Every unrecognized request will be forwarded to it.
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var proxy = require(paths.appPackageJson).proxy;
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devServer.use(historyApiFallback({
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// Paths with dots should still use the history fallback.
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// See https://github.com/facebookincubator/create-react-app/issues/387.
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disableDotRule: true,
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// For single page apps, we generally want to fallback to /index.html.
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// However we also want to respect `proxy` for API calls.
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// So if `proxy` is specified, we need to decide which fallback to use.
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// We use a heuristic: if request `accept`s text/html, we pick /index.html.
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// Modern browsers include text/html into `accept` header when navigating.
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// However API calls like `fetch()` won’t generally accept text/html.
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// If this heuristic doesn’t work well for you, don’t use `proxy`.
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htmlAcceptHeaders: proxy ?
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['text/html'] :
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['text/html', '*/*']
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}));
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var proxy = require(paths.appPackageJson).proxy
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devServer.use(
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historyApiFallback({
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// Paths with dots should still use the history fallback.
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// See https://github.com/facebookincubator/create-react-app/issues/387.
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disableDotRule: true,
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// For single page apps, we generally want to fallback to /index.html.
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// However we also want to respect `proxy` for API calls.
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// So if `proxy` is specified, we need to decide which fallback to use.
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// We use a heuristic: if request `accept`s text/html, we pick /index.html.
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// Modern browsers include text/html into `accept` header when navigating.
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// However API calls like `fetch()` won’t generally accept text/html.
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// If this heuristic doesn’t work well for you, don’t use `proxy`.
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htmlAcceptHeaders: proxy ? ['text/html'] : ['text/html', '*/*'],
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}),
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)
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if (proxy) {
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if (typeof proxy !== 'string') {
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console.log(chalk.red('When specified, "proxy" in package.json must be a string.'));
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console.log(chalk.red('Instead, the type of "proxy" was "' + typeof proxy + '".'));
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console.log(chalk.red('Either remove "proxy" from package.json, or make it a string.'));
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process.exit(1);
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console.log(chalk.red('When specified, "proxy" in package.json must be a string.'))
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console.log(chalk.red('Instead, the type of "proxy" was "' + typeof proxy + '".'))
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console.log(chalk.red('Either remove "proxy" from package.json, or make it a string.'))
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process.exit(1)
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}
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// Otherwise, if proxy is specified, we will let it handle any request.
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@ -183,7 +177,7 @@ function addMiddleware(devServer) {
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// - /*.hot-update.json (WebpackDevServer uses this too for hot reloading)
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// - /sockjs-node/* (WebpackDevServer uses this for hot reloading)
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// Tip: use https://jex.im/regulex/ to visualize the regex
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var mayProxy = /^(?!\/(index\.html$|.*\.hot-update\.json$|sockjs-node\/)).*$/;
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var mayProxy = /^(?!\/(index\.html$|.*\.hot-update\.json$|sockjs-node\/)).*$/
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// Pass the scope regex both to Express and to the middleware for proxying
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// of both HTTP and WebSockets to work without false positives.
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// requests. To prevent CORS issues, we have to change
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// the Origin to match the target URL.
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if (proxyReq.getHeader('origin')) {
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proxyReq.setHeader('origin', proxy);
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proxyReq.setHeader('origin', proxy)
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}
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},
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onError: onProxyError(proxy),
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secure: false,
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changeOrigin: true,
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ws: true
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});
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devServer.use(mayProxy, hpm);
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ws: true,
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})
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devServer.use(mayProxy, hpm)
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// Listen for the websocket 'upgrade' event and upgrade the connection.
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// If this is not done, httpProxyMiddleware will not try to upgrade until
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// an initial plain HTTP request is made.
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devServer.listeningApp.on('upgrade', hpm.upgrade);
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devServer.listeningApp.on('upgrade', hpm.upgrade)
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}
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// Finally, by now we have certainly resolved the URL.
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// It may be /index.html, so let the dev server try serving it again.
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devServer.use(devServer.middleware);
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devServer.use(devServer.middleware)
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}
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function runDevServer(host, port, protocol) {
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@ -253,54 +247,54 @@ function runDevServer(host, port, protocol) {
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// Reportedly, this avoids CPU overload on some systems.
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// https://github.com/facebookincubator/create-react-app/issues/293
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watchOptions: {
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ignored: /node_modules/
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ignored: /node_modules/,
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},
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// Enable HTTPS if the HTTPS environment variable is set to 'true'
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https: protocol === "https",
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host: host
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});
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https: protocol === 'https',
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host: host,
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})
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// Our custom middleware proxies requests to /index.html or a remote API.
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addMiddleware(devServer);
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addMiddleware(devServer)
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// Launch WebpackDevServer.
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devServer.listen(port, (err, result) => {
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if (err) {
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return console.log(err);
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return console.log(err)
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}
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if (isInteractive) {
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clearConsole();
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clearConsole()
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}
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console.log(chalk.cyan('Starting the development server...'));
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console.log();
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console.log(chalk.cyan('Starting the development server...'))
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console.log()
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if (isInteractive) {
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openBrowser(protocol + '://' + host + ':' + port + '/');
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openBrowser(protocol + '://' + host + ':' + port + '/')
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}
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});
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})
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}
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function run(port) {
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var protocol = process.env.HTTPS === 'true' ? "https" : "http";
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var host = process.env.HOST || 'localhost';
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setupCompiler(host, port, protocol);
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runDevServer(host, port, protocol);
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var protocol = process.env.HTTPS === 'true' ? 'https' : 'http'
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var host = process.env.HOST || 'localhost'
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setupCompiler(host, port, protocol)
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runDevServer(host, port, protocol)
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}
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// We attempt to use the default port but if it is busy, we offer the user to
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// run on a different port. `detect()` Promise resolves to the next free port.
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detect(DEFAULT_PORT).then(port => {
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if (port === DEFAULT_PORT) {
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run(port);
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return;
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run(port)
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return
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}
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if (isInteractive) {
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clearConsole();
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var existingProcess = getProcessForPort(DEFAULT_PORT);
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run(port);
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clearConsole()
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var existingProcess = getProcessForPort(DEFAULT_PORT)
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run(port)
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} else {
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console.log(chalk.red('Something is already running on port ' + DEFAULT_PORT + '.'));
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console.log(chalk.red('Something is already running on port ' + DEFAULT_PORT + '.'))
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}
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});
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})
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