@mui/internal-docs-infra/pipeline/loaderUtils/getFileNameFromUrl.js

MUI Infra - internal documentation creation tools.

import _createForOfIteratorHelper from "@babel/runtime/helpers/esm/createForOfIteratorHelper";
/**
 * Known compound extensions that should be treated as a single unit
 */
var COMPOUND_EXTENSIONS = ['.module.css', '.module.scss', '.module.sass', '.module.less', '.d.ts', '.test.js', '.test.jsx', '.test.ts', '.test.tsx', '.spec.js', '.spec.jsx', '.spec.ts', '.spec.tsx', '.config.js', '.config.ts', '.setup.js', '.setup.ts', '.stories.js', '.stories.jsx', '.stories.ts', '.stories.tsx'];

/**
 * Extracts the filename and extension from a URL or file path.
 * This function is isomorphic and works in both Node.js and browser environments.
 * It properly handles compound extensions like .module.css, .d.ts, .test.js, etc.
 *
 * @param url - The URL or file path to extract the filename from
 * @returns An object containing the filename and extension
 */
export function getFileNameFromUrl(url) {
  try {
    // Use URL constructor to handle various URL formats
    var urlObj = new URL(url);
    var pathname = urlObj.pathname;
    var fileName = pathname.split('/').pop() || '';
    return extractFileNameAndExtension(fileName);
  } catch (_unused) {
    // If URL parsing fails, fall back to simple string manipulation
    var _fileName = url.split('/').pop() || url;
    return extractFileNameAndExtension(_fileName);
  }
}

/**
 * Helper function to extract filename and extension, handling compound extensions
 */
function extractFileNameAndExtension(fileName) {
  if (!fileName) {
    return {
      fileName: '',
      extension: ''
    };
  }

  // Check for compound extensions first
  var _iterator = _createForOfIteratorHelper(COMPOUND_EXTENSIONS),
    _step;
  try {
    for (_iterator.s(); !(_step = _iterator.n()).done;) {
      var compoundExt = _step.value;
      if (fileName.endsWith(compoundExt)) {
        return {
          fileName: fileName,
          extension: compoundExt
        };
      }
    }

    // Fall back to simple extension detection
  } catch (err) {
    _iterator.e(err);
  } finally {
    _iterator.f();
  }
  var lastDotIndex = fileName.lastIndexOf('.');
  var extension = lastDotIndex > 0 ? fileName.substring(lastDotIndex) : '';
  return {
    fileName: fileName,
    extension: extension
  };
}