Module: SinatraHelpers::Less

Defined in:
lib/sinatra_helpers/less.rb,
lib/sinatra_helpers/less/erb.rb,
lib/sinatra_helpers/less/config.rb

Defined Under Namespace

Modules: Erb Classes: Config

Constant Summary collapse

CONTENT_TYPE = 
"text/css"

Class Attribute Summary collapse

Class Method Summary collapse

Class Attribute Details

.app ⇒ Object (readonly)

Returns the value of attribute app.



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# File 'lib/sinatra_helpers/less.rb', line 16

def app
  @app
end

Class Method Details

.[](config_attribute) ⇒ Object 



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# File 'lib/sinatra_helpers/less.rb', line 26

def [](config_attribute)
  config.send(config_attribute)
end

.compile(css_name, file_paths) ⇒ Object 



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# File 'lib/sinatra_helpers/less.rb', line 69

def compile(css_name, file_paths)
  compiled_less = file_paths.collect do |file_path|
    Less::Engine.new(File.new(file_path)).to_css
  end.join("\n")
  compiled_less.delete!("\n") if use_compression?
  if SinatraHelpers.page_cache?(SinatraHelpers::Less.app)
    pub_path = File.join(SinatraHelpers::Less.app.public, SinatraHelpers::Less[:hosted_root])
    FileUtils.mkdir_p(pub_path)
    hosted = File.join(pub_path, "#{css_name}.css")
    File.open(hosted, "w") do |file|
      file.write(compiled_less)
    end
  end
  compiled_less
end

.config {|instance_variable_get("@config")| ... } ⇒ Object

Yields:

  • (instance_variable_get("@config")) 


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# File 'lib/sinatra_helpers/less.rb', line 18

def config
  if instance_variable_get("@config").nil?
    instance_variable_set("@config", SinatraHelpers::Less::Config.new)
  end
  yield instance_variable_get("@config") if block_given?
  instance_variable_get("@config")
end

.registered(app) ⇒ Object 



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# File 'lib/sinatra_helpers/less.rb', line 30

def registered(app)
  instance_variable_set("@app", app)

  app.get "/less-sinatra-helper-test" do
    if SinatraHelpers::Less.config
      "The LESS sinatra helper is configured and ready :)"
    else
      "The LESS sinatra helper is NOT configured and ready :("
    end
  end

  app.get "#{SinatraHelpers::Less[:hosted_root]}/*.css" do
    file_name = params['splat'].first.to_s
    less_path = File.join([
      app.root, SinatraHelpers::Less[:src_root], "#{file_name}.less"
    ])
    css_path = File.join([
      app.root, SinatraHelpers::Less[:src_root], "#{file_name}.css"
    ])

    content_type CONTENT_TYPE

    if File.exists?(less_path)
      SinatraHelpers::Less.compile(file_name, [less_path])
    elsif File.exists?(css_path)
      SinatraHelpers::Less.compile(file_name, [css_path])
    elsif SinatraHelpers::Less[:concat].include?(file_name)
      less_paths = SinatraHelpers::Less[:concat][file_name].collect do |concat_name|
        File.join(app.root, SinatraHelpers::Less[:src_root], "#{concat_name}.less")
      end.select do |less_path|
        File.exists?(less_path)
      end
      SinatraHelpers::Less.compile(file_name, less_paths)
    else
      halt SinatraHelpers::HTTP_STATUS[:not_found]
    end
  end    
end

.use_compression? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/sinatra_helpers/less.rb', line 85

def use_compression?
  SinatraHelpers::Less[:compress]
end