check-system-print.yml

name: Check using System.out/err.print

on: [ pull_request_target ]

jobs:
  check-system-print:
    runs-on: ubuntu-latest

    steps:
      - name: Checkout
        uses: actions/checkout@b4ffde65f46336ab88eb53be808477a3936bae11 # v4
        with:
          ref: ${{ github.event.pull_request.head.sha }}

      - name: Setup reviewdog
        uses: reviewdog/action-setup@v1

      - name: Check using System.out.print
        run: |
          COUNT=`grep -rEn "System\.(out|err)\.print" --include=*.java src/main | tee ../system-prints.txt | wc -l || true`
          echo count: $COUNT
          cat ../system-prints.txt
          cat ../system-prints.txt | reviewdog -efm="%f:%l:%m" -name="Check using System.out/err.print" -reporter=github-pr-review -level=warning
          if [ "$COUNT" != "0" ]; then
            echo "Found System.out/err.print in Java source files"
            exit 1
          fi
        env:
          REVIEWDOG_GITHUB_API_TOKEN: ${{ secrets.GITHUB_TOKEN }}