gdrive: get rid of empty file hack (#4774)

dvc/tree/gdrive.py

@@ -366,10 +366,7 @@ class GDriveTree(BaseTree):
                 total=total,
                 disable=no_progress_bar,
             ) as wrapped:
-                # PyDrive2 doesn't like content property setting for empty
-                # files https://github.com/iterative/PyDrive2/issues/59
-                if total:
-                    item.content = wrapped
+                item.content = wrapped
                 item.Upload()
         return item
 

setup.py

@@ -87,7 +87,7 @@ install_requires = [
 # Extra dependencies for remote integrations
 
 gs = ["google-cloud-storage==1.19.0"]
-gdrive = ["pydrive2>=1.6.2", "six >= 1.13.0"]
+gdrive = ["pydrive2>=1.6.3", "six >= 1.13.0"]
 s3 = ["boto3>=1.9.201"]
 azure = ["azure-storage-blob>=12.0", "knack"]
 oss = ["oss2==2.6.1"]