@dr.pogodin/react-utils/build/web/shared/utils/webpack.js

Collection of generic ReactJS components and utils

// eslint-disable-next-line import/enforce-node-protocol-usage
import { createRequire } from 'module';
import { IS_CLIENT_SIDE, IS_SERVER_SIDE } from "./isomorphy";
let require;
if (IS_SERVER_SIDE) require = createRequire(import.meta.url);

/**
 * Requires the specified module without including it into the bundle during
 * Webpack build.
 * @param modulePath
 * @param [basePath]
 * @return Required module.
 */
export function requireWeak(modulePath,
// TODO: For now `basePath` can be provided directly as a string here,
// for backward compatibility. Deprecate it in future, if any other
// breaking changes are done for requireWeak().
basePathOrOptions) {
  if (IS_CLIENT_SIDE) return null;
  let basePath;
  let ops;
  if (typeof basePathOrOptions === 'string') {
    basePath = basePathOrOptions;
  } else {
    ops = basePathOrOptions ?? {};
    ({
      basePath
    } = ops);
  }

  // eslint-disable-next-line @typescript-eslint/unbound-method
  const {
    resolve
  } = require('node:path');
  const path = basePath ? resolve(basePath, modulePath) : modulePath;
  const module = require(path);
  if (!('default' in module) || !module.default) return module;
  const {
    default: def,
    ...named
  } = module;
  const res = def;
  Object.entries(named).forEach(([name, value]) => {
    const assigned = res[name];
    if (assigned === undefined) {
      res[name] = value;
    } else if (assigned !== value) {
      throw Error('Conflict between default and named exports');
    }
  });
  return res;
}

/**
 * Resolves specified module path with help of Babel's module resolver.
 * Yes, the function itself just returns its argument to the caller, but Babel
 * is configured to resolve the first argument of resolveWeak(..) function, thus
 * the result will be the resolved path.
 * @param {string} modulePath
 * @return {string} Absolute or relative path to the module.
 */
export function resolveWeak(modulePath) {
  return modulePath;
}
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