shlinkio / shlink-web-client

const path = require('path');

const fs = require('fs');

const url = require('url');

// Make sure any symlinks in the project folder are resolved:

// https://github.com/facebook/create-react-app/issues/637

const appDirectory = fs.realpathSync(process.cwd());

const envPublicUrl = process.env.PUBLIC_URL;

function ensureSlash(inputPath, needsSlash) {

  const hasSlash = inputPath.endsWith('/');

  if (hasSlash && !needsSlash) {

    return inputPath.substr(0, inputPath.length - 1);

  } else if (!hasSlash && needsSlash) {

    return `${inputPath}/`;

  }

  return inputPath;

}

const getPublicUrl = (appPackageJson) =>

  envPublicUrl || require(appPackageJson).homepage;

// We use `PUBLIC_URL` environment variable or "homepage" field to infer

// "public path" at which the app is served.

// Webpack needs to know it to put the right <script> hrefs into HTML even in

// single-page apps that may serve index.html for nested URLs like /todos/42.

// We can't use a relative path in HTML because we don't want to load something

// like /todos/42/static/js/bundle.7289d.js. We have to know the root.

function getServedPath(appPackageJson) {

  const publicUrl = getPublicUrl(appPackageJson);

  const servedUrl =

    envPublicUrl || (publicUrl ? url.parse(publicUrl).pathname : '/');

  return ensureSlash(servedUrl, true);

}

const moduleFileExtensions = [

  'web.mjs',

  'mjs',

  'web.js',

  'js',

  'web.ts',

  'ts',

  'web.tsx',

  'tsx',

  'json',

  'web.jsx',

  'jsx',

];

// Resolve file paths in the same order as webpack

const resolveModule = (resolveFn, filePath) => {

  const extension = moduleFileExtensions.find((extension) =>

    fs.existsSync(resolveFn(`${filePath}.${extension}`)));

  if (extension) {

    return resolveFn(`${filePath}.${extension}`);

  }

  return resolveFn(`${filePath}.js`);

};

// config after eject: we're in ./config/

module.exports = {

  dotenv: resolveApp('.env'),

  appPath: resolveApp('.'),

  appBuild: resolveApp('build'),

  appPublic: resolveApp('public'),

  appHtml: resolveApp('public/index.html'),

  appIndexJs: resolveModule(resolveApp, 'src/index'),

  appPackageJson: resolveApp('package.json'),

  appSrc: resolveApp('src'),

  appTsConfig: resolveApp('tsconfig.json'),

  yarnLockFile: resolveApp('yarn.lock'),

  testsSetup: resolveModule(resolveApp, 'src/setupTests'),

  proxySetup: resolveApp('src/setupProxy.js'),

  appNodeModules: resolveApp('node_modules'),

  publicUrl: getPublicUrl(resolveApp('package.json')),

  servedPath: getServedPath(resolveApp('package.json')),

};

module.exports.moduleFileExtensions = moduleFileExtensions;