Module: Premailer::Rails::CSSLoaders::AssetPipelineLoader

Extended by:
AssetPipelineLoader
Included in:
AssetPipelineLoader
Defined in:
lib/premailer/rails/css_loaders.rb

Overview

Loads the CSS from the asset pipeline.

Instance Method Summary collapse

Instance Method Details

#assets_enabled? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/premailer/rails/css_loaders.rb', line 30

def assets_enabled?
  ::Rails.configuration.assets.enabled rescue false
end

#file_name(path) ⇒ Object 



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# File 'lib/premailer/rails/css_loaders.rb', line 34

def file_name(path)
  path.sub("#{::Rails.configuration.assets.prefix}/", '') \
    .sub(/-.*\.css$/, '.css')
end

#load(path) ⇒ Object 



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# File 'lib/premailer/rails/css_loaders.rb', line 19

def load(path)
  if assets_enabled?
    file = file_name(path)
    if asset = ::Rails.application.assets.find_asset(file)
      asset.to_s
    else
      request_and_unzip(file)
    end
  end
end

#request_and_unzip(file) ⇒ Object 



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# File 'lib/premailer/rails/css_loaders.rb', line 39

def request_and_unzip(file)
  url = [
    ::Rails.configuration.action_controller.asset_host,
    ::Rails.configuration.assets.prefix.sub(/^\//, ''),
    ::Rails.configuration.assets.digests[file]
  ].join('/')
  response = Kernel.open(url)

  begin
    Zlib::GzipReader.new(response).read
  rescue Zlib::GzipFile::Error, Zlib::Error
    response.rewind
    response.read
  end
end