# File 'lib/rbs/vendorer.rb', line 28
def copy!
    paths = Set[]
  if core_root = loader.core_root
    RBS.logger.info "Vendoring core RBSs in #{vendor_dir + "core"}..."
    FileFinder.each_file(core_root, immediate: false, skip_hidden: true) do |file_path|
      paths << [file_path, Pathname("core") + file_path.relative_path_from(core_root)]
    end
  end
  loader.libs.each do |lib|
    case
    when (spec, path = EnvironmentLoader.gem_sig_path(lib.name, lib.version))
      dest_dir = Pathname("#{lib.name}-#{spec.version}")
      RBS.logger.info "Vendoring #{lib.name}(#{spec.version}) RBSs in #{vendor_dir + dest_dir}..."
      FileFinder.each_file(path, skip_hidden: true, immediate: false) do |file_path|
        paths << [file_path, dest_dir + file_path.relative_path_from(path)]
      end
    when (rbs, path = loader.repository.lookup_path(lib.name, lib.version))
      dest_dir = Pathname("#{rbs.name}-#{path.version}")
      RBS.logger.info "Vendoring #{lib.name}(#{path.version}) RBSs in #{vendor_dir + dest_dir}..."
      FileFinder.each_file(path.path, skip_hidden: true, immediate: false) do |file_path|
        paths << [file_path, dest_dir + file_path.relative_path_from(path.path)]
      end
    else
      RBS.logger.error "Couldn't find RBSs for #{lib.name} (#{lib.version}); skipping..."
    end
  end
  paths.each do |from, to|
    dest = vendor_dir + to
    dest.parent.mkpath unless dest.parent.directory?
    FileUtils.copy_file(from.to_s, dest.to_s)
  end
end