Adds auto formatting for pull requests.

This is a great way to ensure that your code is formatted correctly before it is merged into the main branch and limit the number of formatting changes in pull requests.

.github/workflows/auto_format.yml

@@ -0,0 +1,26 @@
+name: auto-format
+on: pull_request
+jobs:
+  format:
+    # Check if the PR is not from a fork
+    if: github.event.pull_request.head.repo.full_name == github.repository
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v1
+        with:
+          ref: ${{ github.head_ref }}
+      - name: autopep8
+        uses: peter-evans/autopep8@v1
+        with:
+          args: --exit-code --recursive --in-place --aggressive --aggressive .
+      - name: Check for modified files
+        id: git-check
+        run: echo "modified=$(if git diff-index --quiet HEAD --; then echo "false"; else echo "true"; fi)" >> $GITHUB_OUTPUT
+      - name: Push changes
+        if: steps.git-check.outputs.modified == 'true'
+        run: |
+          git config --global user.name 'Torantulino'
+          git config --global user.email '[email protected]'
+          git remote set-url origin https://x-access-token:${{ secrets.GITHUB_TOKEN }}@github.com/${{ github.repository }}
+          git commit -am "Automated changes"
+          git push