wied03/karma-opal-rspec

require 'opal'

module Opal
  class Processor
    FILTER = %w(opal opal/base).freeze

    def allowed_context_path
      @allowed_path ||= Pathname.new(File.join(Gem::Specification.find_all_by_name('opal').first.gem_dir, 'opal'))
    end

    def opal_originating_asset?(context)
      context.pathname.ascend do |path|
        return true if path == allowed_context_path
      end
      false
    end

    def process_requires(requires, context)
      requires.each do |required|
        required = required.to_s.sub(sprockets_extnames_regexp, '')
        # If other rolled up assets (besides opal code itself) do a "require 'opal'", we don't want to end up bundling a 2nd rolled up opal instance
        if opal_originating_asset?(context) || !FILTER.include?(required)
          context.require_asset required unless stubbed_files.include? required
        end
      end
    end
  end
end