JezK
Edit File: cached_environment.rb
require 'sprockets/base' module Sprockets # `Cached` is a special cached version of `Environment`. # # The expection is that all of its file system methods are cached # for the instances lifetime. This makes `Cached` much faster. This # behavior is ideal in production environments where the file system # is immutable. # # `Cached` should not be initialized directly. Instead use # `Environment#cached`. class CachedEnvironment < Base def initialize(environment) initialize_configuration(environment) @cache = environment.cache @stats = Hash.new { |h, k| h[k] = _stat(k) } @entries = Hash.new { |h, k| h[k] = _entries(k) } @uris = Hash.new { |h, k| h[k] = _load(k) } @processor_cache_keys = Hash.new { |h, k| h[k] = _processor_cache_key(k) } @resolved_dependencies = Hash.new { |h, k| h[k] = _resolve_dependency(k) } end # No-op return self as cached environment. def cached self end alias_method :index, :cached # Internal: Cache Environment#entries alias_method :_entries, :entries def entries(path) @entries[path] end # Internal: Cache Environment#stat alias_method :_stat, :stat def stat(path) @stats[path] end # Internal: Cache Environment#load alias_method :_load, :load def load(uri) @uris[uri] end # Internal: Cache Environment#processor_cache_key alias_method :_processor_cache_key, :processor_cache_key def processor_cache_key(str) @processor_cache_keys[str] end # Internal: Cache Environment#resolve_dependency alias_method :_resolve_dependency, :resolve_dependency def resolve_dependency(str) @resolved_dependencies[str] end private # Cache is immutable, any methods that try to change the runtime config # should bomb. def config=(config) raise RuntimeError, "can't modify immutable cached environment" end end end