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Versions: 12
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Contents
# frozen_string_literal: true
require 'opal/paths'
require 'digest/sha2' unless RUBY_ENGINE == 'opal'
if RUBY_ENGINE != 'opal'
require 'opal/cache/file_cache'
end
module Opal
# A Sprockets-compatible cache, for example an instance of
# Opal::Cache::FileCache or Opal::Cache::NullCache.
singleton_class.attr_writer :cache
def self.cache
@cache ||=
if RUBY_ENGINE == 'opal' || ENV['OPAL_CACHE_DISABLE'] || !Cache::FileCache.find_dir
Cache::NullCache.new
else
Cache::FileCache.new
end
end
module Cache
class NullCache
def fetch(*)
yield
end
end
module_function
def fetch(cache, key, &block)
# Extension to the Sprockets API of Cache, if a cache responds
# to #fetch, then we call it instead of using #get and #set.
return cache.fetch(key, &block) if cache.respond_to? :fetch
key = digest(key.join('/')) + '-' + runtime_key
data = cache.get(key)
data || begin
compiler = yield
cache.set(key, compiler) unless compiler.dynamic_cache_result
compiler
end
end
def runtime_key
@runtime_key ||= begin
files = Opal.dependent_files
digest [
files.sort.map { |f| "#{f}:#{File.size(f)}:#{File.mtime(f).to_f}" },
RUBY_VERSION,
RUBY_PATCHLEVEL
].join('/')
end
end
def digest(string)
::Digest::SHA256.hexdigest(string)[-32..-1].to_i(16).to_s(36)
end
end
end
Version data entries
12 entries across 12 versions & 1 rubygems