create-expo-cljs-app/template/node_modules/metro/src/node-haste/lib/parsePlatformFilePath.js

Create a react native application with Expo and Shadow-CLJS!

/**
 * Copyright (c) Facebook, Inc. and its affiliates.
 *
 * This source code is licensed under the MIT license found in the
 * LICENSE file in the root directory of this source tree.
 *
 *
 * @format
 */
"use strict";

const path = require("path");

const PATH_RE = /^(.+?)(\.([^.]+))?\.([^.]+)$/;
/**
 * Extract the components of a file path that can have a platform specifier: Ex.
 * `index.ios.js` is specific to the `ios` platform and has the extension `js`.
 */

function parsePlatformFilePath(filePath, platforms) {
  const dirPath = path.dirname(filePath);
  const fileName = path.basename(filePath);
  const match = fileName.match(PATH_RE);

  if (!match) {
    return {
      dirPath,
      baseName: fileName,
      platform: null,
      extension: null
    };
  }

  const extension = match[4] || null;
  const platform = match[3] || null;

  if (platform == null || platforms.has(platform)) {
    return {
      dirPath,
      baseName: match[1],
      platform,
      extension
    };
  }

  const baseName = `${match[1]}.${platform}`;
  return {
    dirPath,
    baseName,
    platform: null,
    extension
  };
}

module.exports = parsePlatformFilePath;