Merge pull request #780 from rxwen/master

flush the options_file before start the ycmd server

python/ycm/utils.py

@@ -176,7 +176,7 @@ def ForceSemanticCompletion( request_data ):
 
 # A wrapper for subprocess.Popen that works around a Popen bug on Windows.
 def SafePopen( *args, **kwargs ):
-  if kwargs.get( 'stdin', '' ) is None:
+  if kwargs.get( 'stdin' ) is None:
     # We need this on Windows otherwise bad things happen. See issue #637.
     kwargs[ 'stdin' ] = subprocess.PIPE if OnWindows() else None
 

python/ycm/youcompleteme.py

@@ -84,6 +84,7 @@ class YouCompleteMe( object ):
     with tempfile.NamedTemporaryFile( delete = False ) as options_file:
       self._temp_options_filename = options_file.name
       json.dump( dict( self._user_options ), options_file )
+      options_file.flush()
       args = [ utils.PathToPythonInterpreter(),
                _PathToServerScript(),
                '--port={0}'.format( server_port ),