Method getExoticExtensions

packages/webpack-cli/src/webpack-cli.ts:2750–2759

()

    // common-extension config exists, so defer importing it until then.
    let exoticExtensions: string[] | undefined;
    const getExoticExtensions = async () => {
      if (typeof exoticExtensions === "undefined") {
        const interpret = await import("interpret");
        const common = new Set(commonExtensions);

        exoticExtensions = Object.keys(interpret.extensions).filter((ext) => !common.has(ext));
      }

      return exoticExtensions;
    };

    const directoryEntriesCache = new Map<string, Set<string> | null>();
    const readDirectoryEntries = async (directory: string) => {