FIX: Ensure TarReader is closed.

lib/discourse_ip_info.rb

@@ -26,12 +26,13 @@ class DiscourseIpInfo
 
     uri = URI("https://geolite.maxmind.com/download/geoip/database/#{name}.tar.gz")
 
-    tar_gz_file = Tempfile.new
     begin
+      tar_gz_file = Tempfile.new
       tar_gz_file.binmode
       tar_gz_file.write(Net::HTTP.get(uri))
       tar_gz_file.close
 
+      begin
         extractor = Gem::Package::TarReader.new(Zlib::GzipReader.open(tar_gz_file.path))
         extractor.rewind
 
@@ -39,10 +40,13 @@ class DiscourseIpInfo
           next unless entry.full_name.ends_with?(".mmdb")
           File.open(mmdb_path(name), "wb") { |f| f.write(entry.read) }
         end
+      ensure
+        extractor.close
+      end
+
     ensure
       tar_gz_file.close
       tar_gz_file.unlink
-      extractor.close
     end
   end