labeler.yml

name: Label PRs based on commit messages

on:
  push:

jobs:
  labelPR:
    runs-on: ubuntu-latest
    steps:
      - name: Checkout code
        uses: actions/checkout@v2

      - name: Install GitHub CLI
        run: |
          sudo apt-key adv --keyserver keyserver.ubuntu.com --recv-key C99B11DEB97541F0
          sudo apt-add-repository https://cli.github.com/packages
          sudo apt update
          sudo apt install gh

      - name: Get PR number
        id: pr_number
        run: |
          PR_NUMBER=$(gh pr list --json number,headRefName --jq ".[] | select(.headRefName == \"${{ github.ref }}\") | .number")
          echo "::set-output name=number::$PR_NUMBER"
        env:
          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}

      - name: Add label
        run: |
          COMMIT_MSG=$(git log --format=%B -n 1 ${{ github.sha }})
          if [[ "$COMMIT_MSG" == fix:* ]]; then
            gh pr edit ${{ steps.pr_number.outputs.number }} --add-label "fix"
          elif [[ "$COMMIT_MSG" == feature:* ]]; then
            gh pr edit ${{ steps.pr_number.outputs.number }} --add-label "feature"
          elif [[ "$COMMIT_MSG" == chore:* ]]; then
            gh pr edit ${{ steps.pr_number.outputs.number }} --add-label "chore"
          elif [[ "$COMMIT_MSG" == enhancement:* ]]; then
            gh pr edit ${{ steps.pr_number.outputs.number }} --add-label "enhancement"
          fi
        env:
          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}