module Sprockets::Loader

def store_asset(asset, unloaded)
  # Save the asset in the cache under the new URI
  cached_asset             = asset.dup
  cached_asset[:uri]       = compress_from_root(asset[:uri])
  cached_asset[:filename]  = compress_from_root(asset[:filename])
  cached_asset[:load_path] = compress_from_root(asset[:load_path])
  if cached_asset[:metadata]
    # Deep dup to avoid modifying `asset`
    cached_asset[:metadata] = cached_asset[:metadata].dup
    if cached_asset[:metadata][:included] && !cached_asset[:metadata][:included].empty?
      cached_asset[:metadata][:included] = cached_asset[:metadata][:included].dup
      cached_asset[:metadata][:included].map! { |uri| compress_from_root(uri) }
    end
    if cached_asset[:metadata][:links] && !cached_asset[:metadata][:links].empty?
      cached_asset[:metadata][:links] = cached_asset[:metadata][:links].dup
      cached_asset[:metadata][:links].map! { |uri| compress_from_root(uri) }
    end
    if cached_asset[:metadata][:stubbed] && !cached_asset[:metadata][:stubbed].empty?
      cached_asset[:metadata][:stubbed] = cached_asset[:metadata][:stubbed].dup
      cached_asset[:metadata][:stubbed].map! { |uri| compress_from_root(uri) }
    end
    if cached_asset[:metadata][:required] && !cached_asset[:metadata][:required].empty?
      cached_asset[:metadata][:required] = cached_asset[:metadata][:required].dup
      cached_asset[:metadata][:required].map! { |uri| compress_from_root(uri) }
    end
    if cached_asset[:metadata][:dependencies] && !cached_asset[:metadata][:dependencies].empty?
      cached_asset[:metadata][:dependencies] = cached_asset[:metadata][:dependencies].dup
      cached_asset[:metadata][:dependencies].map! do |uri|
        uri.start_with?("file-digest://".freeze) ? compress_from_root(uri) : uri
      end
    end
    # compress all _dependencies in metadata like `sass_dependencies`
    cached_asset[:metadata].each do |key, value|
      next unless key =~ /_dependencies\z/
      cached_asset[:metadata][key] = value.dup
      cached_asset[:metadata][key].map! {|uri| compress_from_root(uri) }
    end
  end
  # Unloaded asset and stored_asset now have a different URI
  stored_asset = UnloadedAsset.new(asset[:uri], self)
  cache.set(stored_asset.asset_key, cached_asset, true)
  # Save the new relative path for the digest key of the unloaded asset
  cache.set(unloaded.digest_key(asset[:dependencies_digest]), stored_asset.compressed_path, true)
end