Fix IC/DC annotation on Linux (#2715)

* Bump node-sass version for compat with Node 12.x

* Fix IC annotation on Linux

.gitattributes

@@ -1,3 +1,4 @@
 # Treat these paths as external for the purposes of GitHub's Linguist
 deps/* linguist-vendored
 src/external/* linguist-vendored
+src/visualization/client/Turi[[:space:]]Create[[:space:]]Visualization/src/user_interface/build/* linguist-generated

src/python/turicreate/toolkits/image_classifier/_annotate.py

@@ -119,10 +119,6 @@ def annotate(data, image_column=None, annotation_column='annotations'):
                             [image_column],
                             annotation_column
                         )
-    if __platform == "linux" or __platform == "linux2":
-        model = _image_feature_extractor._create_feature_extractor("squeezenet_v1.1")
-        feature_sframe = model.extract_features(data, image_column, verbose=False, batch_size=64)
-        annotation_window.add_image_features(feature_sframe)
 
     with _QuietProgress(False):
         annotation_window.annotate(_get_client_app_path())

src/visualization/annotation/image_classification.cpp

@@ -284,8 +284,11 @@ void ImageClassification::_addAnnotationToSFrame(size_t index,
                                                  std::string label) {
   /* Assert that the column type is indeed of type flex_enum::STRING */
   size_t annotation_column_index = m_data->column_index(m_annotation_column);
-  DASSERT_EQ(m_data->dtype().at(annotation_column_index),
-             flex_type_enum::STRING);
+  flex_type_enum annotation_column_type = m_data->dtype().at(annotation_column_index);
+  if (m_data->select_column(annotation_column_index)->any()) {
+    DASSERT_EQ(annotation_column_type,
+              flex_type_enum::STRING);
+  }
 
   std::shared_ptr<unity_sarray> data_sarray =
       std::static_pointer_cast<unity_sarray>(

src/visualization/client/Turi Create Visualization/src/user_interface/package.json

@@ -9,7 +9,7 @@
     "@fortawesome/react-fontawesome": "0.0.18",
     "d3": "^5.0.0",
     "element-resize-event": "^2.0.9",
-    "node-sass": "4.11.0",
+    "node-sass": "^4.13.0",
     "protobufjs": "^6.8.8",
     "react": "^16.2.0",
     "react-dom": "^16.2.0",

src/visualization/client/Turi Create Visualization/src/user_interface/src/index.js

@@ -222,6 +222,10 @@ window.handleInput = function(data){
     input_data["data"] = json_obj["accordion_spec"];
     window.setAccordionData(input_data);
   }
+
+  else if(json_obj["protobuf"] != null) {
+    window.setProtoMessage(json_obj["protobuf"]);
+  }
 
   else {
       throw new Error("Unexpected input to visualization client: " + JSON.stringify(data));