update readme

.github/workflows/UpdateReadmeOnPush.yml

@@ -21,35 +21,38 @@ jobs:
         with:
           python-version: '3.12'
 
-      - name: Check if files match naming pattern
-        id: check-files
+      - name: Check for Allowed File Changes
+        uses: tj-actions/verify-changed-files@v19
+        id: verify-changes
+        with:
+          # Only check for changes in Python and C++ files
+          files: |
+            **/*.py
+            **/*.cpp
+          # Fail if no allowed files changed
+          fail_on_empty_changes: true
+
+      - name: Check File Names
         run: |
-          if git rev-parse --verify HEAD~1 >/dev/null 2>&1; then
-            files=$(git diff --name-only HEAD~1 HEAD -- ./ | grep -E '^\d+[A-Z]\.(cpp|py)$' | grep -v '^\.github/')
-            if [[ ! -z "$files" ]]; then
-              echo "::set-env name=CHANGED::true"
-              echo "::set-env name=UPDATED_FILES::$files"
-            else
-              echo "::set-env name=CHANGED::false"
+          changed_files=${{ steps.verify-changes.outputs.changed_files }}
+          for file in $changed_files; do
+            if [[ ! ($file =~ ^\d[A-Z]\.(cpp|py)$ ]]; then
+              echo "Error: File '$file' does not match allowed pattern"
+              exit 1
             fi
-          else
-            echo "::warning:: No previous commit found. Skipping checks."
-          fi
+          done
 
       - name: Run Python script to update README
-        if: env.CHANGED == 'true'
-        run: python update_readme.py ${{ env.UPDATED_FILES }}
+        run: python update_readme.py ${{ steps.verify-changes.outputs.changed_files }}
 
       - name: Commit changes
-        if: env.CHANGED == 'true'
         run: |
           git config --local user.email "[email protected]"
           git config --local user.name "GitHub Actions"
           git add README.md
           git commit -m "Update README"
 
       - name: Push changes
-        if: env.CHANGED == 'true'
         uses: ad-m/github-push-action@master
         with:
           github_token: ${{ secrets.CODEFORCES_GITHUB_TOKEN }}