fix

Author: aobolensk

.github/workflows/ubuntu.yml

@@ -8,6 +8,7 @@ jobs:
       - uses: actions/checkout@v4
         with:
           submodules: recursive
+          fetch-depth: 0
       - name: Setup environment
         run: |
           sudo apt-get update
@@ -16,7 +17,14 @@ jobs:
           python3 -m pip install -r requirements.txt
       - name: Run pre-commit checks
         run: |
-          pre-commit run --from-ref origin/master --to-ref HEAD
+          # For push events, compare with previous commit
+          if [ "${{ github.event_name }}" = "push" ]; then
+            pre-commit run --from-ref HEAD~1 --to-ref HEAD
+          else
+            # For PRs, compare with base branch
+            git fetch origin ${{ github.base_ref }}:${{ github.base_ref }}
+            pre-commit run --from-ref ${{ github.base_ref }} --to-ref HEAD
+          fi
   gcc-build:
     needs:
       - pre-commit