#714 prevent throwing another exception if the request fails eg connection reset (#715)

* prevent throwing another exception if the request fails eg connection reset

* prevent throwing another exception if the request fails eg connection reset

Author: davidvanlaatum

modules/openapi-generator/src/main/resources/ruby-client/api_client.mustache

@@ -238,7 +238,7 @@ module {{moduleName}}
         tempfile.write(chunk)
       end
       request.on_complete do |response|
-        tempfile.close
+        tempfile.close if tempfile
         @config.logger.info "Temp file written to #{tempfile.path}, please copy the file to a proper folder "\
                             "with e.g. `FileUtils.cp(tempfile.path, '/new/file/path')` otherwise the temp file "\
                             "will be deleted automatically with GC. It's also recommended to delete the temp file "\

samples/client/petstore/ruby/lib/petstore/api_client.rb

@@ -244,7 +244,7 @@ def download_file(request)
         tempfile.write(chunk)
       end
       request.on_complete do |response|
-        tempfile.close
+        tempfile.close if tempfile
         @config.logger.info "Temp file written to #{tempfile.path}, please copy the file to a proper folder "\
                             "with e.g. `FileUtils.cp(tempfile.path, '/new/file/path')` otherwise the temp file "\
                             "will be deleted automatically with GC. It's also recommended to delete the temp file "\