auto_lint.yaml

name: Fix linting errors

on:
    push:
      branches:
        - '!main'
    pull_request:

jobs:
  analyse:
    runs-on: ubuntu-latest

    steps:
    - name: Install Clang Format
      run: |
        sudo apt-get update
        sudo apt-get install -y clang-format

    - name: Set branch name
      run: |
        echo "BRANCH_NAME=${GITHUB_HEAD_REF:-${GITHUB_REF#refs/heads/}}" >> $GITHUB_ENV

    - name: Checkout code
      uses: actions/checkout@v2
      with:
        ref: ${{ env.BRANCH_NAME }}

    - name: Run clang-format
      run: |
        clang-format -i src/*.cpp

    - name: Commit changes
      id: commit_changes
      run: |
        git config --global user.email "action@github.com"
        git config --global user.name "GitHub Action"
        git add .
        if [ -z "$(git status --porcelain)" ]; then
          echo "No changes to commit."
          echo "NO_COMMIT=true" >> $GITHUB_ENV
          exit 0
        fi
        git commit -m "Fix linting errors"

    - name: Push changes
      id: push_changes
      if: ${{ env.NO_COMMIT != 'true' }}
      uses: ad-m/github-push-action@master
      with:
        github_token: ${{ secrets.GITHUB_TOKEN }}
        branch: ${{ env.BRANCH_NAME }}

    - name: Comment on Pull Request
      if: (${{ env.NO_COMMIT }} != 'true') && (${{ github.event_name }} == 'pull_request')
      uses: actions/github-script@v2
      env:
        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
      with:
        script: |
          if (process.env.NO_COMMIT !== 'true') {
            const result = await github.pulls.list({
              owner: context.repo.owner,
              repo: context.repo.repo,
              head: context.sha,
            });

            if (result.data.length) {
              const pullRequest = result.data[0];
              await github.issues.createComment({
                owner: context.repo.owner,
                repo: context.repo.repo,
                issue_number: pullRequest.number,
                body: 'Linting errors observed and fixed 🎉. Please pull the latest changes!!',
              });
            }
          }