Function getDynamicRequireModules

packages/commonjs/src/dynamic-modules.js:35–69

(patterns, dynamicRequireRoot)

}

export function getDynamicRequireModules(patterns, dynamicRequireRoot) {
  const dynamicRequireModules = new Map();
  const dirNames = new Set();
  for (const pattern of !patterns || Array.isArray(patterns) ? patterns || [] : [patterns]) {
    const isNegated = pattern.startsWith('!');
    const modifyMap = (targetPath, resolvedPath) =>
      isNegated
        ? dynamicRequireModules.delete(targetPath)
        : dynamicRequireModules.set(targetPath, resolvedPath);
    // eslint-disable-next-line new-cap
    for (const path of new fdir()
      .withBasePath()
      .withDirs()
      .glob(isNegated ? pattern.substr(1) : pattern)
      .crawl(relative('.', dynamicRequireRoot))
      .sync()
      .sort((a, b) => a.localeCompare(b, 'en'))) {
      const resolvedPath = resolve(path);
      const requirePath = normalizePathSlashes(resolvedPath);
      if (isDirectory(resolvedPath)) {
        dirNames.add(resolvedPath);
        const modulePath = resolve(join(resolvedPath, getPackageEntryPoint(path)));
        modifyMap(requirePath, modulePath);
        modifyMap(normalizePathSlashes(modulePath), modulePath);
      } else {
        dirNames.add(dirname(resolvedPath));
        modifyMap(requirePath, resolvedPath);
      }
    }
  }
  return {
    commonDir: dirNames.size ? getCommonDir([...dirNames, dynamicRequireRoot]) : null,
    dynamicRequireModules
  };
}

const FAILED_REQUIRE_ERROR = `throw new Error('Could not dynamically require "' + path + '". Please configure the dynamicRequireTargets or/and ignoreDynamicRequires option of @rollup/plugin-commonjs appropriately for this require call to work.');`;