buildNpmPackage: add forceEmptyCache option

  # Whether to force the usage of Git dependencies that have install scripts, but not a lockfile.

  # Use with care.

, forceGitDeps ? false

  # Whether to force allow an empty dependency cache.

  # This can be enabled if there are truly no remote dependencies, but generally an empty cache indicates something is wrong.

, forceEmptyCache ? false

  # Whether to make the cache writable prior to installing dependencies.

  # Don't set this unless npm tries to write to the cache directory, as it can slow down the build.

, makeCacheWritable ? false

, npmWorkspace ? null

, nodejs ? topLevelArgs.nodejs

, npmDeps ?  fetchNpmDeps {

  inherit forceGitDeps src srcs sourceRoot prePatch patches postPatch;

  inherit forceGitDeps forceEmptyCache src srcs sourceRoot prePatch patches postPatch;

  name = "${name}-npm-deps";

  hash = npmDepsHash;

}