labels.yml

name: Required Labels and Breaking Change Detection

on:
  pull_request:
    types: [opened, labeled, unlabeled, synchronize, edited]

concurrency:
  group: ${{ github.workflow }}-${{ github.head_ref || github.run_id }}
  cancel-in-progress: true

jobs:
  # Check that the PR has required labels
  required-labels:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4

      - name: Check required labels
        uses: mheap/github-action-required-labels@v5
        with:
          mode: minimum
          count: 1
          labels: "kind:fix, kind:misc, kind:break!, kind:refactor, kind:feat, kind:deps, kind:docs, kind:ci, kind:chore, kind:testing" # yamllint disable-line rule:line-length

  # Check for breaking changes and add 'kind:break!' label if detected
  check-breaking:
    runs-on: ubuntu-latest
    if: |
      (github.event.action == 'opened' ||
      github.event.action == 'synchronize' ||
      github.event.action == 'reopened' ||
      github.event.action == 'edited' ||
      github.event.action == 'labeled' ||
      github.event.action == 'unlabeled') &&
      github.actor != 'dependabot[bot]'
    permissions:
      pull-requests: write
      contents: read

    steps:
      - uses: actions/checkout@v4
        with:
          fetch-depth: 0

      - name: Set up GitHub CLI
        run: |
          sudo apt-get install -y gh

      - name: Run breaking change detection script
        id: breaking_check
        env:
          BASE_BRANCH: ${{ github.event.pull_request.base.ref }}
        continue-on-error: true  # This allows the job to continue even if breaking changes are detected
        run: |
          echo "Base Branch: $BASE_BRANCH"
          git fetch origin "$BASE_BRANCH"
          make detect-breaking

      - name: Check if 'kind:break!' label is already present
        id: label_check
        if: failure()
        run: |
          LABEL_EXISTS=$(gh pr view ${{ github.event.pull_request.number }} --json labels --jq '.labels | map(.name) | contains(["kind:break!"])')
          echo "Label exists: $LABEL_EXISTS"
         echo "label_exists=${{ $LABEL_EXISTS }}" >> $GITHUB_ENV
        env:
          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}

      - name: Add 'kind:break!' label if breaking changes detected
        if: ${{ failure() && env.label_exists == 'false' }}
        run: |
          echo "Breaking changes detected, adding 'kind:break!' label to PR #${{ github.event.pull_request.number }}."
          gh pr edit ${{ github.event.pull_request.number }} --add-label "kind:break!"
        env:
          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}

      - name: Label already exists or apply failed
        if: ${{ failure() && env.label_exists == 'true' }}
        run: echo "The 'kind:break!' label already exists or could not be added."