class Sprockets::Context::ENVProxy

Internal: Proxy for ENV that keeps track of the environment variables used

def [](key) 

def [](key)
  @context.depend_on_env(key)
  super
end

def fetch(key, *) 

def fetch(key, *)
  @context.depend_on_env(key)
  super
end

def initialize(context) 

def initialize(context)
  @context = context
  super(ENV)
end