Add support for file operations in CodeActions

ycmd/completers/language_server/language_server_completer.py

@@ -3590,21 +3590,35 @@ def WorkspaceEditToFixIt( request_data,
   if not workspace_edit:
     return None
 
+  chunks = []
   if 'changes' in workspace_edit:
-    chunks = []
     # We sort the filenames to make the response stable. Edits are applied in
     # strict sequence within a file, but apply to files in arbitrary order.
     # However, it's important for the response to be stable for the tests.
     for uri in sorted( workspace_edit[ 'changes' ].keys() ):
       chunks.extend( TextEditToChunks( request_data,
                                        uri,
                                        workspace_edit[ 'changes' ][ uri ] ) )
-  else:
-    chunks = []
+  if 'documentChanges' in workspace_edit:
     for text_document_edit in workspace_edit[ 'documentChanges' ]:
-      uri = text_document_edit[ 'textDocument' ][ 'uri' ]
-      edits = text_document_edit[ 'edits' ]
-      chunks.extend( TextEditToChunks( request_data, uri, edits ) )
+      kind = text_document_edit.get( 'kind', '' )
+      if 'edits' in text_document_edit:
+        uri = text_document_edit[ 'textDocument' ][ 'uri' ]
+        edits = text_document_edit[ 'edits' ]
+        chunks.extend( TextEditToChunks( request_data, uri, edits ) )
+      elif kind == 'rename':
+        chunks.append(
+            responses.RenameChunk(
+              old_filepath = lsp.UriToFilePath( text_document_edit[ 'oldUri' ] ),
+              new_filepath = lsp.UriToFilePath( text_document_edit[ 'newUri' ] ) ) )
+      elif kind == 'delete':
+        chunks.append(
+            responses.DeleteChunk(
+              lsp.UriToFilePath( text_document_edit[ 'uri' ] ) ) )
+      elif kind == 'create':
+        chunks.append(
+            responses.CreateChunk(
+              lsp.UriToFilePath( text_document_edit[ 'uri' ] ) ) )
   return responses.FixIt(
     responses.Location( request_data[ 'line_num' ],
                         request_data[ 'column_num' ],

ycmd/completers/language_server/language_server_protocol.py

@@ -307,7 +307,10 @@ def Initialize( request_id,
       'didChangeWatchedFiles': {
         'dynamicRegistration': True
       },
-      'workspaceEdit': { 'documentChanges': True, },
+      'workspaceEdit': {
+        'resourceOperations': [ 'create', 'rename', 'delete'],
+        'documentChanges': True,
+      },
       'symbol': {
         'symbolKind': {
           'valueSet': list( range( 1, len( SYMBOL_KIND ) ) ),

ycmd/responses.py

@@ -268,6 +268,22 @@ def __init__( self, location: Location, chunks, text = '', kind = None ):
     self.kind = kind
 
 
+class DeleteChunk:
+  def __init__( self, filepath ):
+    self.filepath = filepath
+    self.kind = 'delete'
+
+class CreateChunk:
+  def __init__( self, filepath ):
+    self.filepath = filepath
+    self.kind = 'create'
+
+class RenameChunk:
+  def __init__( self, old_filepath, new_filepath ):
+    self.old_filepath = old_filepath
+    self.new_filepath = new_filepath
+    self.kind = 'rename'
+
 class FixItChunk:
   """An individual replacement within a FixIt (aka Refactor)"""
 
@@ -315,10 +331,22 @@ def BuildFixItResponse( fixits ):
   both quick fix and refactor operations"""
 
   def BuildFixitChunkData( chunk ):
-    return {
-      'replacement_text': chunk.replacement_text,
-      'range': BuildRangeData( chunk.range ),
-    }
+    if hasattr( chunk, 'replacement_text' ):
+      return {
+        'replacement_text': chunk.replacement_text,
+        'range': BuildRangeData( chunk.range ),
+      }
+    elif hasattr( chunk, 'new_filepath' ):
+      return {
+        'new_filepath': chunk.new_filepath,
+        'old_filepath': chunk.old_filepath,
+        'kind': chunk.kind
+      }
+    else:
+      return {
+        'filepath': chunk.filepath,
+        'kind': chunk.kind
+      }
 
   def BuildFixItData( fixit ):
     if hasattr( fixit, 'resolve' ):