Class: GraphQL::Language::Cache
- Inherits:
-
Object
- Object
- GraphQL::Language::Cache
- Defined in:
- lib/graphql/language/cache.rb
Constant Summary collapse
Instance Method Summary collapse
- #fetch(filename) ⇒ Object
-
#initialize(path) ⇒ Cache
constructor
A new instance of Cache.
Constructor Details
#initialize(path) ⇒ Cache
Returns a new instance of Cache.
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# File 'lib/graphql/language/cache.rb', line 9 def initialize(path) @path = path end |
Instance Method Details
#fetch(filename) ⇒ Object
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# File 'lib/graphql/language/cache.rb', line 14 def fetch(filename) hash = DIGEST.dup << filename begin hash << File.mtime(filename).to_i.to_s rescue SystemCallError return yield end cache_path = @path.join(hash.to_s) if cache_path.exist? Marshal.load(cache_path.read) else payload = yield tmp_path = "#{cache_path}.#{rand}" @path.mkpath File.binwrite(tmp_path, Marshal.dump(payload)) File.rename(tmp_path, cache_path.to_s) payload end end |