lib/pdfkit/configuration.rb in pdfkit-0.8.2 vs lib/pdfkit/configuration.rb in pdfkit-0.8.3

@@ -1,9 +1,9 @@
 class PDFKit
   class Configuration
     attr_accessor :meta_tag_prefix, :default_options, :root_url
-    attr_writer :wkhtmltopdf, :verbose
+    attr_writer :verbose
 
     def initialize
       @verbose         = false
       @meta_tag_prefix = 'pdfkit-'
       @default_options = {
@@ -17,10 +17,23 @@
         :encoding => 'UTF-8'
       }
     end
 
     def wkhtmltopdf
-      @wkhtmltopdf ||= (defined?(Bundler::GemfileError) && File.exists?('Gemfile') ? `bundle exec which wkhtmltopdf` : `which wkhtmltopdf`).chomp
+      @wkhtmltopdf ||= default_wkhtmltopdf
+    end
+
+    def default_wkhtmltopdf
+      @default_command_path ||= (defined?(Bundler::GemfileError) && File.exists?('Gemfile') ? `bundle exec which wkhtmltopdf` : `which wkhtmltopdf`).chomp
+    end
+
+    def wkhtmltopdf=(path)
+      if File.exist?(path)
+        @wkhtmltopdf = path
+      else
+        warn "No executable found at #{path}. Will fall back to #{default_wkhtmltopdf}" unless File.exist?(path)
+        @wkhtmltopdf = default_wkhtmltopdf
+      end
     end
 
     def quiet?
       !@verbose
     end