chore(cd): pipeline fixes (#203)

- Fixing some minor pipeline issues

Author: joshua-goldstein

.github/workflows/cd-pydgraph.yml

@@ -16,7 +16,6 @@ jobs:
       - name: Get Python Version
         run: |
           #!/bin/bash
-          cd pydgraph
           PYTHON_VERSION=$({ [ -f .python-version ] && cat .python-version; })
           echo "PYTHON_VERSION=$PYTHON_VERSION" >> $GITHUB_ENV
       - name: Set up Python
@@ -31,13 +30,20 @@ jobs:
           python -m pip install twine
       - name: Verify that protobufs are checked in
         run: |
-          # should be a no-op
+          # we modify one line in proto/api_pb2_grpc.py as described in readme
           python scripts/protogen.py
-          git diff --exit-code -- .
+          ACTUAL_DIFF=$(git diff --shortstat)
+          EXPECTED_DIFF=" 1 file changed, 1 insertion(+), 1 deletion(-)"
+          if [[ "$ACTUAL_DIFF" == "$EXPECTED_DIFF" ]]; then
+            echo "found expected difference"
+          else
+            echo "unexpected difference when regenerating protobufs, verify they are checked in"
+            exit 1
+          fi
       - name: Build pydgraph
         run: |
           rm -rf dist
           # build binary wheel and a source tarball
           python -m build
       - name: Upload to PyPi
-        run: twine upload --username dgraph-io --password ${{ secrets.DGRAPH_PYPI_PASSWORD }} dist/*       
+        run: twine upload --username ${{ secrets.DGRAPH_PYPI_USERNAME }} --password ${{ secrets.DGRAPH_PYPI_PASSWORD }} dist/*