name: Go Tidy

on:
  schedule:
    - cron: '22 10 * * 3'

permissions: read-all

jobs:
  fix:
    runs-on: ubuntu-latest
    permissions:
      contents: write
    steps:
      - name: Install Go
        uses: actions/setup-go@fcdc43634adb5f7ae75a9d7a9b9361790f7293e2
        with:
          go-version: '1.18.0'
        id: go

      - name: Checkout
        uses: actions/checkout@2541b1294d2704b0964813337f33b291d3f8596b

      - name: Tidy
        run: |
          rm -f go.sum
          go mod tidy

      - name: Set up Git
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
        run: |
          git config user.name "coredns[bot]"
          git config user.email "bot@bot.coredns.io"
          git remote set-url origin https://x-access-token:${GITHUB_TOKEN}@github.com/${GITHUB_REPOSITORY}.git

      - name: Commit and push changes
        run: |
          git add .
          if output=$(git status --porcelain) && [ ! -z "$output" ]; then
            git commit -s -m 'auto go mod tidy'
            git push
          fi