97 lines
3.2 KiB
JavaScript
97 lines
3.2 KiB
JavaScript
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'use strict';
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const path = require('path');
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const fs = require('fs');
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const url = require('url');
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// Make sure any symlinks in the project folder are resolved:
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// https://github.com/facebook/create-react-app/issues/637
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const appDirectory = fs.realpathSync(process.cwd());
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const resolveApp = relativePath => path.resolve(appDirectory, relativePath);
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const envPublicUrl = process.env.PUBLIC_URL;
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function ensureSlash(inputPath, needsSlash) {
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const hasSlash = inputPath.endsWith('/');
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if (hasSlash && !needsSlash) {
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return inputPath.substr(0, inputPath.length - 1);
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} else if (!hasSlash && needsSlash) {
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return `${inputPath}/`;
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} else {
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return inputPath;
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}
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}
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const getPublicUrl = appPackageJson =>
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envPublicUrl || require(appPackageJson).homepage;
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// We use `PUBLIC_URL` environment variable or "homepage" field to infer
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// "public path" at which the app is served.
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// Webpack needs to know it to put the right <script> hrefs into HTML even in
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// single-page apps that may serve index.html for nested URLs like /todos/42.
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// We can't use a relative path in HTML because we don't want to load something
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// like /todos/42/static/js/bundle.7289d.js. We have to know the root.
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function getServedPath(appPackageJson) {
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const publicUrl = getPublicUrl(appPackageJson);
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const servedUrl =
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envPublicUrl || (publicUrl ? url.parse(publicUrl).pathname : '/');
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return ensureSlash(servedUrl, true);
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}
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const isReactNative = process.env.IS_REACT_NATIVE;
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const isGenericBrowser = process.env.IS_GENERIC_BROWSER;
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// JWL: Resolve to mobile suffixes before resolving to .js. This
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// makes it load real React Native components, but when needed
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// .web.js can be used to force a web version.
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const moduleFileExtensions = (isGenericBrowser ? ['browser.js'] : [])
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.concat(['web.mjs', 'web.js'])
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.concat(isReactNative ? ['ios.js', 'mobile.js'] : [])
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.concat(['mjs', 'js', 'json', 'web.jsx', 'jsx']);
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// Resolve file paths in the same order as webpack
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const resolveModule = (resolveFn, filePath) => {
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const extension = moduleFileExtensions.find(extension =>
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fs.existsSync(resolveFn(`${filePath}.${extension}`))
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);
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if (extension) {
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return resolveFn(`${filePath}.${extension}`);
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}
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return resolveFn(`${filePath}.js`);
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};
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function getAliases(appPackageJson) {
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let aliases = require(appPackageJson).pathAliases || {};
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let res = {};
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Object.keys(aliases).map(k => {
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res[k] = resolveApp(aliases[k]);
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});
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return res;
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}
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// config after eject: we're in ./config/
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module.exports = {
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dotenv: resolveApp('.env'),
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appPath: resolveApp('.'),
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appBuild: resolveApp('build'),
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appPublic: resolveApp('public'),
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appHtml: resolveApp('public/index.html'),
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appIndexJs: resolveModule(resolveApp, 'src/index'),
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appPackageJson: resolveApp('package.json'),
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appSrc: resolveApp('src'),
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appTsConfig: resolveApp('tsconfig.json'),
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yarnLockFile: resolveApp('yarn.lock'),
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testsSetup: resolveModule(resolveApp, 'src/setupTests'),
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proxySetup: resolveApp('src/setupProxy.js'),
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appNodeModules: resolveApp('node_modules'),
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publicUrl: getPublicUrl(resolveApp('package.json')),
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servedPath: getServedPath(resolveApp('package.json')),
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aliases: getAliases(resolveApp('package.json'))
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};
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module.exports.moduleFileExtensions = moduleFileExtensions;
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