Extract progress tracking code to separate module

lib/wicked_pdf.rb

@@ -29,8 +29,10 @@
 require 'wicked_pdf/railtie'
 require 'wicked_pdf/tempfile'
 require 'wicked_pdf/middleware'
+require 'wicked_pdf/progress'
 
 class WickedPdf
+  include Progress
   DEFAULT_BINARY_VERSION = Gem::Version.new('0.9.9')
   BINARY_VERSION_WITHOUT_DASHES = Gem::Version.new('0.12.0')
   EXE_NAME = 'wkhtmltopdf'.freeze
@@ -106,32 +108,6 @@ def in_development_mode?
     RAILS_ENV == 'development' if defined?(RAILS_ENV)
   end
 
-  def track_progress?(options)
-    options[:progress] && !on_windows?
-  end
-
-  def invoke_with_progress(command, options)
-    output = []
-    begin
-      PTY.spawn(command.join(' ')) do |stdout, _stdin, pid|
-        begin
-          stdout.sync
-          stdout.each_line("\r") do |line|
-            output << line.chomp
-            options[:progress].call(line) if options[:progress]
-          end
-        rescue Errno::EIO # child process is terminated, this is expected behaviour
-        ensure
-          ::Process.wait pid
-        end
-      end
-    rescue PTY::ChildExited
-      puts 'The child process exited!'
-    end
-    err = output.join('\n')
-    raise "#{command} failed (exitstatus 0). Output was: #{err}" unless $CHILD_STATUS && $CHILD_STATUS.exitstatus.zero?
-  end
-
   def on_windows?
     RbConfig::CONFIG['target_os'] =~ /mswin|mingw/
   end

lib/wicked_pdf/progress.rb

@@ -0,0 +1,30 @@
+class WickedPdf
+  module Progress
+    def track_progress?(options)
+      options[:progress] && !on_windows?
+    end
+
+    def invoke_with_progress(command, options)
+      output = []
+      begin
+        PTY.spawn(command.join(' ')) do |stdout, _stdin, pid|
+          begin
+            stdout.sync
+            stdout.each_line("\r") do |line|
+              output << line.chomp
+              options[:progress].call(line) if options[:progress]
+            end
+          rescue Errno::EIO # rubocop:disable Lint/HandleExceptions
+            # child process is terminated, this is expected behaviour
+          ensure
+            ::Process.wait pid
+          end
+        end
+      rescue PTY::ChildExited
+        puts 'The child process exited!'
+      end
+      err = output.join('\n')
+      raise "#{command} failed (exitstatus 0). Output was: #{err}" unless $CHILD_STATUS && $CHILD_STATUS.exitstatus.zero?
+    end
+  end
+end