lib/grim/image_magick_processor.rb in grim-1.2.0 vs lib/grim/image_magick_processor.rb in grim-1.3.0

@@ -1,5 +1,7 @@
+require 'open3'
+
 module Grim
   class ImageMagickProcessor
 
     # ghostscript prints out a warning, this regex matches it
     WarningRegex = /\*\*\*\*.*\n/
@@ -38,13 +40,23 @@
       command << "-interlace none"
       command << "-density #{density}"
       command << "#{Shellwords.shellescape(pdf.path)}[#{index}]"
       command << path
 
-      command.unshift("PATH=#{File.dirname(@ghostscript_path)}:#{ENV['PATH']}") if @ghostscript_path && @ghostscript_path != DefaultGhostScriptPath
+      command_env = {}
 
-      result = `#{command.join(' ')}`
+      if @ghostscript_path && @ghostscript_path != DefaultGhostScriptPath
+        command_env['PATH'] = "#{File.dirname(@ghostscript_path)}#{File::PATH_SEPARATOR}#{ENV['PATH']}"
+      end
 
-      $? == 0 || raise(UnprocessablePage, result)
+      Grim.logger.debug { "Running imagemagick command" }
+      if command_env.any?
+        Grim.logger.debug { command_env.map {|k,v| "#{k}=#{v}" }.join(" ") }
+      end
+      Grim.logger.debug { command.join(" ") }
+
+      result, status = Open3.capture2e(command_env, command.join(" "))
+
+      status.success? || raise(UnprocessablePage, result)
     end
   end
 end