Module: Webpack::Rails::Helper

Defined in:
lib/webpack/rails/helper.rb

Overview

Asset path helpers for use with webpack

Instance Method Summary collapse

Instance Method Details

#webpack_asset_paths(source, extension: nil) ⇒ Object

Return asset paths for a particular webpack entry point.

Response may either be full URLs (eg localhost/…) if the dev server is in use or a host-relative URl (eg /webpack/…) if assets are precompiled.

Will raise an error if our manifest can’t be found or the entry point does not exist.



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# File 'lib/webpack/rails/helper.rb', line 15

def webpack_asset_paths(source, extension: nil)
  return "" unless source.present?

  paths = Webpack::Rails::Manifest.asset_paths(source)
  paths = paths.select { |p| p.ends_with? ".#{extension}" } if extension

  port = ::Rails.configuration.webpack.dev_server.port
  protocol = ::Rails.configuration.webpack.dev_server.https ? 'https' : 'http'

  host = ::Rails.configuration.webpack.dev_server.host
  host = instance_eval(&host) if host.respond_to?(:call)

  if ::Rails.configuration.webpack.dev_server.enabled
    paths.map! do |p|
      "#{protocol}://#{host}:#{port}#{p}"
    end
  end

  paths
end