Custom Loader for Percy

percy.rb

require 'percy/capybara/loaders/sprockets_loader'
require 'digest'
require 'find'

class CustomLoader < Percy::Capybara::Loaders::SprocketsLoader
  def build_resources
    resources = []
    # resource_url = "http://king.dev.imsdev.io/assets/css/app.min.css"
    public_path = "#{Dir.pwd}/features/root"


    Find.find(public_path).each do |path|
      # Skip directories.
      next if !FileTest.file?(path)
      # Skip certain extensions.
      next if SKIP_RESOURCE_EXTENSIONS.include?(File.extname(path))
      # # Skip large files, these are hopefully downloads and not used in page rendering.
      next if File.size(path) > MAX_FILESIZE_BYTES

      # Strip the public_path from the beginning of the resource_url.
      # This assumes that everything in the public_path directory is served at the root
      # of the app.
      resource_url = path.sub(public_path, '')

      sha = Digest::SHA256.hexdigest(File.read(path))

      resources << Percy::Client::Resource.new(resource_url, sha: sha, path: path)
    end
    resources
  end
end
unless $is_windows
  Percy::Capybara.use_loader(CustomLoader)
  Percy::Capybara.initialize_build
  at_exit  { Percy::Capybara.finalize_build }
end

Try:

require 'percy/capybara'

unless $is_windows
  Percy::Capybara.use_loader(:filesystem, assets_dir: "#{Dir.pwd}/features/root")
  Percy::Capybara.initialize_build
  at_exit  { Percy::Capybara.finalize_build }
end