initial commit

lib/full_odds/cache.rb

@@ -0,0 +1,28 @@
+# frozen_string_literal: true
+
+module FO
+  class Cache
+    def initialize(init = {})
+      @c = init
+    end
+
+    def file!(path)
+      if @c[path].nil?
+        return @c[path] = File.read(path)
+      end
+      @c[path]
+    end
+
+    def get(k)
+      @c.fetch(k)
+    end
+
+    def set!(k, v)
+      @c[k] = v
+    end
+
+    def set(k, v)
+      self.class.new(@c.merge(k => v))
+    end
+  end
+end