Add noop for same filetype export

Author: NyanHelsing

mfr/core/utils.py

@@ -2,6 +2,7 @@
 from stevedore import driver
 
 from mfr.core import exceptions
+from mfr.extensions.default.exporter import DefaultExporter
 
 
 def make_provider(name, request, url):
@@ -18,7 +19,7 @@ def make_provider(name, request, url):
  namespace='mfr.providers',
  name=name.lower(),
  invoke_on_load=True,
- invoke_args=(request, url, ),
+ invoke_args=(request, url)
  ).driver
  except RuntimeError:
  raise exceptions.MakeProviderError(
@@ -49,7 +50,7 @@ def make_exporter(name, source_file_path, output_file_path, format):
  namespace='mfr.exporters',
  name=normalized_name,
  invoke_on_load=True,
- invoke_args=(normalized_name, source_file_path, output_file_path, format),
+ invoke_args=(normalized_name, source_file_path, output_file_path, format)
  ).driver
  except RuntimeError:
  raise exceptions.MakeExporterError(

mfr/extensions/default/__init__.py

@@ -0,0 +1,5 @@
+from mfr.core.extension import BaseExporter
+
+class DefaultExporter(BaseExporter):
+ def export():
+ pass

mfr/extensions/default/exporter.py

@@ -76,6 +76,12 @@ async def get(self):
  self.source_file_path
  )
 
+ if self.metadata.ext == ".{}".format(self.format):
+ with open(self.source_file_path.full_path, 'rb') as fp:
+ self._set_headers()
+ await self.write_stream(waterbutler.core.streams.FileStreamReader(fp))
+ return
+
  exporter = utils.make_exporter(
  self.metadata.ext,
  self.source_file_path.full_path,