update-readme-sha.yml

name: Update README SHA reference

on:
  push:
    branches:
      - main
    paths-ignore:
      - 'README.md'
      - '**.md'
      - 'LICENSE'
      - '.github/FUNDING.yml'

jobs:
  update-sha:
    name: Update pinned SHA in README
    runs-on: ubuntu-latest
    permissions:
      contents: write
    steps:
      - name: Checkout code
        uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
        with:
          ref: main
          fetch-depth: 2

      - name: Update SHA in README.md
        run: |
          NEW_SHA="${{ github.sha }}"
          sed -i "s|ref: [0-9a-f]\{40\}|ref: ${NEW_SHA}|g" README.md

      - name: Commit updated README.md
        run: |
          git config user.name "github-actions[bot]"
          git config user.email "github-actions[bot]@users.noreply.github.com"
          if git diff --quiet README.md; then
            echo "No SHA change detected, skipping commit."
          else
            git add README.md
            git commit -m "chore: update pinned SHA in README to ${{ github.sha }}"
            git push
          fi