Github Action to update and commit a file with a python script on every push.

update_posts.yml

name: Auto-update posts
on: [push]
jobs:
  build:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v2
      - name: Setting up python
        uses: actions/setup-python@v2
        with:
          python-version: 3.9.7
      - name: Updating posts
        run: |
          python update_posts.py
      - run: |
          git config user.name github-actions
          git config user.email github-actions@github.com
          git add .
          git commit -m "Auto-Update posts"
          git push