uri.rb in milestoner-18.4.0

- old
+ new

@@ -1,22 +1,19 @@
 # frozen_string_literal: true
 
 require "cff"
 require "dry/monads"
 require "pathname"
-require "refinements/hash"
 
 module Milestoner
   module Configuration
     module Transformers
       module Citations
         # Conditionally updates project URI based on citation URL.
         class URI
           include Dry::Monads[:result]
 
-          using Refinements::Hash
-
           def initialize key = :project_uri,
                          path: Pathname.pwd.join("CITATION.cff"),
                          citation: CFF::File
             @key = key
             @path = path
@@ -37,10 +34,10 @@
           attr_reader :key, :path, :citation
 
           def process attributes
             attributes.fetch(key) { citation.open(path).url }
                       .then { |value| value.match?(/%<.+>s/) ? format(value, attributes) : value }
-                      .then { |value| attributes.merge!(key => value).compress! }
+                      .then { |value| attributes.merge! key => value unless value.empty? }
           end
         end
       end
     end
   end