Ensuring that temp directories are cleaned up on gm or tesseract exception.

Author: jashkenas

lib/docsplit/image_extractor.rb

@@ -46,6 +46,7 @@ def convert(pdf, size, format, previous=nil)
           raise ExtractionFailed, result if $? != 0
         end
       end
+    ensure
       FileUtils.remove_entry_secure tempdir if File.exists?(tempdir)
     end
 

lib/docsplit/text_extractor.rb

@@ -71,6 +71,7 @@ def extract_from_ocr(pdf, pages)
         run "MAGICK_TMPDIR=#{tempdir} OMP_NUM_THREADS=2 gm convert #{MEMORY_ARGS} #{OCR_FLAGS} #{pdf} #{tiff} 2>&1"
         run "tesseract #{tiff} #{base_path} -l eng 2>&1"
       end
+    ensure
       FileUtils.remove_entry_secure tempdir if File.exists?(tempdir)
     end