- Updated to React 18

- Updated for public release
  - Git was reset for privacy reasons

scripts/build.js

@@ -0,0 +1,198 @@
+"use strict";
+
+// Do this as the first thing so that any code reading it knows the right env.
+process.env.BABEL_ENV = "production";
+process.env.NODE_ENV = "production";
+process.env.BUILD_PATH = "./dist";
+
+// 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 path = require("path");
+const chalk = require("react-dev-utils/chalk");
+const fs = require("fs-extra");
+const bfj = require("bfj");
+const webpack = require("webpack");
+const configFactory = require("../config/webpack.config");
+const paths = require("../config/paths");
+const checkRequiredFiles = require("react-dev-utils/checkRequiredFiles");
+const formatWebpackMessages = require("react-dev-utils/formatWebpackMessages");
+const printHostingInstructions = require("react-dev-utils/printHostingInstructions");
+const FileSizeReporter = require("react-dev-utils/FileSizeReporter");
+const printBuildError = require("react-dev-utils/printBuildError");
+
+const measureFileSizesBeforeBuild = FileSizeReporter.measureFileSizesBeforeBuild;
+const printFileSizesAfterBuild = FileSizeReporter.printFileSizesAfterBuild;
+const useYarn = fs.existsSync(paths.yarnLockFile);
+
+// These sizes are pretty large. We'll warn for bundles exceeding them.
+const WARN_AFTER_BUNDLE_GZIP_SIZE = 512 * 1024;
+const WARN_AFTER_CHUNK_GZIP_SIZE = 1024 * 1024;
+
+const isInteractive = process.stdout.isTTY;
+
+// Warn and crash if required files are missing
+if (!checkRequiredFiles([paths.appHtml, paths.appIndexJs])) {
+  process.exit(1);
+}
+
+const argv = process.argv.slice(2);
+const writeStatsJson = argv.indexOf("--stats") !== -1;
+
+// Generate configuration
+const config = configFactory("production");
+
+// 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(() => {
+    // First, read the current file sizes in build directory.
+    // This lets us display how much they changed later.
+    return measureFileSizesBeforeBuild(paths.appBuild);
+  })
+  .then((previousFileSizes) => {
+    // Remove all content but keep the directory so that
+    // if you're in it, you don't end up in Trash
+    fs.emptyDirSync(paths.appBuild);
+    // Merge with the public folder
+    copyPublicFolder();
+    // Start the webpack build
+    return build(previousFileSizes);
+  })
+  .then(
+    ({ stats, previousFileSizes, warnings }) => {
+      if (warnings.length) {
+        console.log(chalk.yellow("Compiled with warnings.\n"));
+        console.log(warnings.join("\n\n"));
+        console.log(
+          "\nSearch for the " + chalk.underline(chalk.yellow("keywords")) + " to learn more about each warning.",
+        );
+        console.log("To ignore, add " + chalk.cyan("// eslint-disable-next-line") + " to the line before.\n");
+      } else {
+        console.log(chalk.green("Compiled successfully.\n"));
+      }
+
+      console.log("File sizes after gzip:\n");
+      printFileSizesAfterBuild(
+        stats,
+        previousFileSizes,
+        paths.appBuild,
+        WARN_AFTER_BUNDLE_GZIP_SIZE,
+        WARN_AFTER_CHUNK_GZIP_SIZE,
+      );
+      console.log();
+
+      const appPackage = require(paths.appPackageJson);
+      const publicUrl = paths.publicUrlOrPath;
+      const publicPath = config.output.publicPath;
+      const buildFolder = path.relative(process.cwd(), paths.appBuild);
+      printHostingInstructions(appPackage, publicUrl, publicPath, buildFolder, useYarn);
+    },
+    (err) => {
+      const tscCompileOnError = process.env.TSC_COMPILE_ON_ERROR === "true";
+      if (tscCompileOnError) {
+        console.log(
+          chalk.yellow(
+            "Compiled with the following type errors (you may want to check these before deploying your app):\n",
+          ),
+        );
+        printBuildError(err);
+      } else {
+        console.log(chalk.red("Failed to compile.\n"));
+        printBuildError(err);
+        process.exit(1);
+      }
+    },
+  )
+  .catch((err) => {
+    if (err && err.message) {
+      console.log(err.message);
+    }
+    process.exit(1);
+  });
+
+// Create the production build and print the deployment instructions.
+function build(previousFileSizes) {
+  console.log("Creating an optimized production build...");
+
+  const compiler = webpack(config);
+  return new Promise((resolve, reject) => {
+    compiler.run((err, stats) => {
+      let messages;
+      if (err) {
+        if (!err.message) {
+          return reject(err);
+        }
+
+        let errMessage = err.message;
+
+        // Add additional information for postcss errors
+        if (Object.prototype.hasOwnProperty.call(err, "postcssNode")) {
+          errMessage += "\nCompileError: Begins at CSS selector " + err["postcssNode"].selector;
+        }
+
+        messages = formatWebpackMessages({
+          errors: [errMessage],
+          warnings: [],
+        });
+      } else {
+        messages = formatWebpackMessages(stats.toJson({ all: false, warnings: true, errors: true }));
+      }
+      if (messages.errors.length) {
+        // Only keep the first error. Others are often indicative
+        // of the same problem, but confuse the reader with noise.
+        if (messages.errors.length > 1) {
+          messages.errors.length = 1;
+        }
+        return reject(new Error(messages.errors.join("\n\n")));
+      }
+      if (
+        process.env.CI &&
+        (typeof process.env.CI !== "string" || process.env.CI.toLowerCase() !== "false") &&
+        messages.warnings.length
+      ) {
+        // Ignore sourcemap warnings in CI builds. See #8227 for more info.
+        const filteredWarnings = messages.warnings.filter((w) => !/Failed to parse source map/.test(w));
+        if (filteredWarnings.length) {
+          console.log(
+            chalk.yellow(
+              "\nTreating warnings as errors because process.env.CI = true.\n" +
+                "Most CI servers set it automatically.\n",
+            ),
+          );
+          return reject(new Error(filteredWarnings.join("\n\n")));
+        }
+      }
+
+      const resolveArgs = {
+        stats,
+        previousFileSizes,
+        warnings: messages.warnings,
+      };
+
+      if (writeStatsJson) {
+        return bfj
+          .write(paths.appBuild + "/bundle-stats.json", stats.toJson())
+          .then(() => resolve(resolveArgs))
+          .catch((error) => reject(new Error(error)));
+      }
+
+      return resolve(resolveArgs);
+    });
+  });
+}
+
+function copyPublicFolder() {
+  fs.copySync(paths.appPublic, paths.appBuild, {
+    dereference: true,
+    filter: (file) => file !== paths.appHtml,
+  });
+}

scripts/start.js

@@ -0,0 +1,128 @@
+"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 semver = require("semver");
+const paths = require("../config/paths");
+const configFactory = require("../config/webpack.config");
+const createDevServerConfig = require("../config/webpackDevServer.config");
+const getClientEnvironment = require("../config/env");
+const react = require(require.resolve("react", { paths: [paths.appPath] }));
+
+const env = getClientEnvironment(paths.publicUrlOrPath.slice(0, -1));
+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://cra.link/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, paths.publicUrlOrPath.slice(0, -1));
+    // Create a webpack compiler that is configured with custom messages.
+    const compiler = createCompiler({
+      appName,
+      config,
+      urls,
+      useYarn,
+      useTypeScript,
+      webpack,
+    });
+    // Load proxy config
+    const proxySetting = require(paths.appPackageJson).proxy;
+    const proxyConfig = prepareProxy(proxySetting, paths.appPublic, paths.publicUrlOrPath);
+    // Serve webpack assets generated by the compiler over a web server.
+    const serverConfig = {
+      ...createDevServerConfig(proxyConfig, urls.lanUrlForConfig),
+      host: HOST,
+      port,
+    };
+    const devServer = new WebpackDevServer(serverConfig, compiler);
+    // Launch WebpackDevServer.
+    devServer.startCallback(() => {
+      if (isInteractive) {
+        clearConsole();
+      }
+
+      if (env.raw.FAST_REFRESH && semver.lt(react.version, "16.10.0")) {
+        console.log(chalk.yellow(`Fast Refresh requires React 16.10 or higher. You are using React ${react.version}.`));
+      }
+
+      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();
+      });
+    });
+
+    if (process.env.CI !== "true") {
+      // Gracefully exit when stdin ends
+      process.stdin.on("end", function () {
+        devServer.close();
+        process.exit();
+      });
+    }
+  })
+  .catch((err) => {
+    if (err && err.message) {
+      console.log(err.message);
+    }
+    process.exit(1);
+  });

scripts/test.js

@@ -0,0 +1,47 @@
+"use strict";
+
+// Do this as the first thing so that any code reading it knows the right env.
+process.env.BABEL_ENV = "test";
+process.env.NODE_ENV = "test";
+process.env.PUBLIC_URL = "";
+
+// 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 jest = require("jest");
+const execSync = require("child_process").execSync;
+const argv = process.argv.slice(2);
+
+function isInGitRepository() {
+  try {
+    execSync("git rev-parse --is-inside-work-tree", { stdio: "ignore" });
+    return true;
+  } catch (e) {
+    return false;
+  }
+}
+
+function isInMercurialRepository() {
+  try {
+    execSync("hg --cwd . root", { stdio: "ignore" });
+    return true;
+  } catch (e) {
+    return false;
+  }
+}
+
+// Watch unless on CI or explicitly running all tests
+if (!process.env.CI && argv.indexOf("--watchAll") === -1 && argv.indexOf("--watchAll=false") === -1) {
+  // https://github.com/facebook/create-react-app/issues/5210
+  const hasSourceControl = isInGitRepository() || isInMercurialRepository();
+  argv.push(hasSourceControl ? "--watch" : "--watchAll");
+}
+
+jest.run(argv);