ci-auto-format-and-commit.yml

name: "[CI] Auto Format and Commit"

on:
  push:
    branches:
      - main

permissions:
  contents: write

jobs:
  format:
    runs-on: ubuntu-latest

    steps:
      - name: Checkout main branch
        uses: actions/checkout@v4
        with:
          ref: main
          fetch-depth: 0
          # You should add a Personal Access Token (PAT) to the repository secrets
          token: ${{ secrets.PAT || github.token }}

      - name: Set up Python
        uses: actions/setup-python@v5
        with:
          python-version: "3.12"

      - name: Install formatter
        shell: bash
        run: |
          wget https://apt.llvm.org/llvm.sh && sudo bash ./llvm.sh 20 && rm ./llvm.sh
          sudo apt-get install clang-format-20
          sudo ln -sf $(which clang-format-20) /usr/bin/clang-format
          python -m pip install ruff

      - name: Run format script
        shell: bash
        run: |
          bash ./scripts/format.sh -cxx -py --clang-format-config=.clang-format
      
      - name: Check for Uncommitted Changes
        shell: bash
        id: format_check
        run: |
          # Check if clang-format introduced any changes
          if [[ `git status --porcelain` ]]; then
            echo "Files were not properly formatted. The changes will be pushed to branch main."
            echo "format_status=fail" >> $GITHUB_OUTPUT
          else
            echo "All files are properly formatted."
            echo "format_status=pass" >> $GITHUB_OUTPUT
          fi

      - name: Commit and Push to main
        shell: bash
        if : ${{ steps.format_check.outputs.format_status == 'fail' }}
        run: |
          git config user.name "github-actions[bot]"
          git config user.email "github-actions[bot]@users.noreply.github.com"
          git commit -am "[skip ci] Auto-format code with clang-format and black"
          git push origin main