lib/pdfkit/pdfkit.rb in pdfkit-0.8.5 vs lib/pdfkit/pdfkit.rb in pdfkit-0.8.6

@@ -1,15 +1,17 @@
+# frozen_string_literal: true
+
 require 'shellwords'
 require 'tempfile'
 
 class PDFKit
   class Error < StandardError; end
 
   class NoExecutableError < Error
     def initialize
-      msg  = "No wkhtmltopdf executable found at #{PDFKit.configuration.wkhtmltopdf}\n"
-      msg << ">> Please install wkhtmltopdf - https://github.com/pdfkit/PDFKit/wiki/Installing-WKHTMLTOPDF"
+      msg = "No wkhtmltopdf executable found at #{PDFKit.configuration.wkhtmltopdf}\n" \
+            ">> Please install wkhtmltopdf - https://github.com/pdfkit/PDFKit/wiki/Installing-WKHTMLTOPDF"
       super(msg)
     end
   end
 
   class ImproperSourceError < Error
@@ -38,10 +40,10 @@
     @root_url = options.delete(:root_url)
     @protocol = options.delete(:protocol)
     @renderer = WkHTMLtoPDF.new options
     @renderer.normalize_options
 
-    raise NoExecutableError unless File.exists?(PDFKit.configuration.wkhtmltopdf)
+    raise NoExecutableError unless File.exist?(PDFKit.configuration.wkhtmltopdf)
   end
 
   def command(path = nil)
     args = @renderer.options_for_command
     shell_escaped_command = [executable, OS::shell_escape_for_os(args)].join ' '