class Rake::SprocketsTask


end
t.assets = %w( application.js application.css )
t.output = “./public/assets”
t.environment = Sprockets::Environment.new
Rake::SprocketsTask.new do |t|
Simple Sprockets compilation Rake task macro.

def define

Define tasks 
def define
  desc name == :assets ? "Compile assets" : "Compile #{name} assets"
  task name do
    with_logger do
      manifest.compile(assets)
    end
  end
  desc name == :assets ? "Remove all assets" : "Remove all #{name} assets"
  task "clobber_#{name}" do
    with_logger do
      manifest.clobber
    end
  end
  task :clobber => ["clobber_#{name}"]
  desc name == :assets ? "Clean old assets" : "Clean old #{name} assets"
  task "clean_#{name}" do
    with_logger do
      manifest.clean(keep)
    end
  end
  task :clean => ["clean_#{name}"]
end

def environment


end
t.environment = Foo::Assets
Rake::SprocketsTask.new do |t|

You'll most likely want to reassign `environment` to your own.

`Environment` instance used for finding assets. 
def environment
  if !@environment.is_a?(Sprockets::Base) && @environment.respond_to?(:call)
    @environment = @environment.call
  else
    @environment
  end
end

def index

Returns cached indexed environment 
def index
  @index ||= environment.index if environment
end

def initialize(name = :assets) 

def initialize(name = :assets)
  @name         = name
  @environment  = lambda { Sprockets::Environment.new(Dir.pwd) }
  @manifest     = lambda { Sprockets::Manifest.new(index, output) }
  @logger       = Logger.new($stderr)
  @logger.level = Logger::INFO
  @keep         = 2
  yield self if block_given?
  define
end

def log_level

Returns logger level Integer. 
def log_level
  @logger.level
end

def log_level=(level)


t.log_level = :debug
t.log_level = Logger::INFO

Set logger level with constant or symbol. 
def log_level=(level)
  if level.is_a?(Integer)
    @logger.level = level
  else
    @logger.level = Logger.const_get(level.to_s.upcase)
  end
end

def manifest

directory are given
Will be created by default if an environment and output

`Manifest` instance used for already compiled assets. 
def manifest
  if !@manifest.is_a?(Sprockets::Manifest) && @manifest.respond_to?(:call)
    @manifest = @manifest.call
  else
    @manifest
  end
end

def with_logger

writes to stderr.
Sub out environment logger with our rake task logger that 
def with_logger
  if env = manifest.environment
    old_logger = env.logger
    env.logger = @logger
  end
  yield
ensure
  env.logger = old_logger if env
end