add precommit

Author: jsstevenson

.github/workflows/python-package.yml

@@ -44,6 +44,26 @@ jobs:
       run: |
         ruff format --check .
 
+  precommit_hooks:
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        cmd:
+          - "end-of-file-fixer"
+          - "trailing-whitespace"
+          - "mixed-line-ending"
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Set up Python 3.12
+        uses: actions/setup-python@v5
+        with:
+          python-version: 3.12
+
+      - uses: pre-commit/[email protected]
+        with:
+          extra_args: ${{ matrix.cmd }} --all-files
+
   test:
     runs-on: ubuntu-latest