lib/jekyll-diagrams/vega.rb in jekyll-diagrams-0.9.1 vs lib/jekyll-diagrams/vega.rb in jekyll-diagrams-0.9.2

@@ -1,28 +1,31 @@
+# frozen_string_literal: true
+
 module Jekyll
   module Diagrams
     class VegaBlock < Block
-      CONFIGURATIONS = %w( scale )
+      CONFIGURATIONS = %w[scale].freeze
 
       def render_svg(code, config)
         code = render_with_stdin_stdout('vl2vg', code) if block_name == 'vegalite'
+
         command = build_command(config)
 
         render_with_stdin_stdout(command, code)
       end
 
       def build_command(config)
-        command = 'vg2svg'
+        command = +'vg2svg'
 
         CONFIGURATIONS.each do |conf|
-          command << " --#{conf} #{config[conf]}" if config.has_key?(conf)
+          command << " --#{conf} #{config[conf]}" if config.key?(conf)
         end
 
         command
       end
     end
   end
 end
 
-%i(vega vegalite).each do |tag|
+%i[vega vegalite].each do |tag|
   Liquid::Template.register_tag(tag, Jekyll::Diagrams::VegaBlock)
-end
\ No newline at end of file
+end