amend

Signed-off-by: Matteo Bettini <[email protected]>

.github/workflows/lint.yml

@@ -33,6 +33,16 @@ jobs:
       run: |
         python -m pip install --upgrade pip
         python -m pip install flake8
+        pip install --progress-bar=off pre-commit
+        
+        set +e
+        pre-commit run --all-files
+        
+        if [ $? -ne 0 ]; then
+          git --no-pager diff
+          exit 1
+        fi
+        
         # stop the build if there are Python syntax errors or undefined names
         flake8 benchmarl/ --count --select=E9,F63,F7,F82 --show-source --statistics
         # exit-zero treats all errors as warnings. The GitHub editor is 127 chars wide