check-clean-stage.yml

# Copyright (c) Microsoft Corporation.
# Licensed under the MIT License.

name: Spec %clean stage check

# NOTE - allow custom %clean section for 3.0 and later (remove this entire check after 2.0 is EOL)
on:
  push:
    branches: [main, dev, 1.0*, 2.0*, fasttrack/*]
  pull_request:
    branches: [main, dev, 1.0*, 2.0*, fasttrack/*]

jobs:
  spec-clean-stage-check:
    name: Spec %clean stage check
    runs-on: ubuntu-latest

    steps:
      # Checkout the branch of our repo that triggered this action
      - name: Workflow trigger checkout
        uses: actions/checkout@v4

      - name: Get base commit for PRs
        if: ${{ github.event_name == 'pull_request' }}
        run: |
          git fetch origin ${{ github.base_ref }}
          echo "base_sha=$(git rev-parse origin/${{ github.base_ref }})" >> $GITHUB_ENV

      - name: Get base commit for Pushes
        if: ${{ github.event_name == 'push' }}
        run: |
          git fetch origin ${{ github.event.before }}
          echo "base_sha=${{ github.event.before }}" >> $GITHUB_ENV

      - name: Check the modified spec files
        run: |
          changed_specs=$(git diff-tree --diff-filter=d --no-commit-id --name-only -r ${{ env.base_sha }} ${{ github.sha }} | { grep "SPECS.*/.*\.spec$" || test $? = 1; })

          for spec in $changed_specs
          do
            echo "Checking '$spec'."
            if grep -q "^\s*%clean" "$spec"
            then
              1>&2 echo "**** ERROR ****"
              1>&2 echo "Spec '$spec' contains a %clean stage, which should be unnecessary for Azure Linux. Please remove it or add an exception for this spec file."
              1>&2 echo "**** ERROR ****"
              error_found=1
            fi
          done

          if [[ -n $error_found ]]
          then
            exit 1
          fi