Remove pages archive in case of exception

app/services/pages/zip_directory_service.rb

@@ -26,6 +26,9 @@ module Pages
       end
 
       [output_file, count]
+    rescue => e
+      FileUtils.rm_f(output_file) if output_file
+      raise e
     end
 
     private

spec/services/pages/zip_directory_service_spec.rb

@@ -24,8 +24,10 @@ RSpec.describe Pages::ZipDirectoryService do
     let(:archive) { result.first }
     let(:entries_count) { result.second }
 
-    it 'raises error if there is no public directory' do
+    it 'raises error if there is no public directory and does not leave archive' do
       expect { archive }.to raise_error(described_class::InvalidArchiveError)
+
+      expect(File.exist?(File.join(@work_dir, '@migrated.zip'))).to eq(false)
     end
 
     it 'raises error if public directory is a symlink' do