pull-request.yaml

name: Pull Request
on:
  pull_request_target:
    types:
      - opened
      - edited
      - synchronize
      - reopened

permissions:
  pull-requests: write
  issues: write

jobs:
  conventional-commit-labeler:
    name: Label PR based on Conventional Commit Specification
    permissions:
      contents: read
      pull-requests: write
    runs-on: ubuntu-latest
    steps:
      - uses: actions/github-script@ed597411d8f924073f98dfc5c65a23a2325f34cd # v8
        env:
          TYPE_TO_LABEL: |
            {
              "feat":"kind/feature",
              "fix":"kind/bugfix",
              "chore":"kind/chore",
              "docs":"area/documentation",
              "test":"area/testing",
              "perf":"area/performance"
            }
          SCOPE_TO_LABEL: |
            {
              "deps":"kind/dependency"
            }
          BREAKING_CHANGE_LABEL: "!BREAKING-CHANGE!"
        with:
          script: |
            console.log("Verify that the PR title follows the Conventional Commit format");

            const typeToLabel = JSON.parse(process.env.TYPE_TO_LABEL);
            const scopeToLabel = JSON.parse(process.env.SCOPE_TO_LABEL);
            const allowedTypes = Object.keys(typeToLabel).join('|');

            const prTitle = context.payload.pull_request.title;
            console.log(`PR Title: ${prTitle}`);

            const regex = new RegExp(
            `^(((Initial commit)|(Merge [^\\r\\n]+(\\s)[^\\r\\n]+((\\s)((\\s)[^\\r\\n]+)+)*(\\s)?)|^((?<type>${allowedTypes})(\\((?<scope>[\\w\\-]+)\\))?(?<breaking>!?): (?<subject>[^\\r\\n]+((\\s)((\\s)[^\\r\\n]+)+)*))(\\s)?)$)`
            );

            const match = prTitle.match(regex);
            if (match && match.groups) {
              const { type, scope, breaking } = match.groups;
              const labels = [];

              if (breaking) labels.push(process.env.BREAKING_CHANGE_LABEL);
              if (type && typeToLabel[type]) labels.push(typeToLabel[type]);
              if (scope && scopeToLabel[scope]) labels.push(scopeToLabel[scope]);

              if (labels.length > 0) {
                await github.rest.issues.addLabels({
                  owner: context.repo.owner,
                  repo: context.repo.repo,
                  issue_number: context.payload.pull_request.number,
                  labels: labels,
                });
              }
            } else {
              console.log("Invalid PR title format. See https://www.conventionalcommits.org/");
              process.exit(1);
            }

  labeler:
    name: Label PR based on Config
    permissions:
      contents: read
      pull-requests: write
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6
        with:
          sparse-checkout: |
            .github/config/labeler.yml
      - uses: actions/labeler@634933edcd8ababfe52f92936142cc22ac488b1b # v6
        with:
          configuration-path: .github/config/labeler.yml

  size-labeler:
    runs-on: ubuntu-latest
    name: Label PR based on size
    permissions:
      issues: write
      pull-requests: write
    steps:
      - uses: codelytv/pr-size-labeler@4ec67706cd878fbc1c8db0a5dcd28b6bb412e85a # v1
        with:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
          xs_label: 'size/xs'
          xs_max_size: '10'
          s_label: 'size/s'
          s_max_size: '100'
          m_label: 'size/m'
          m_max_size: '500'
          l_label: 'size/l'
          l_max_size: '10000'
          xl_label: 'size/xl'
          fail_if_xl: 'false'
          message_if_xl: >
            This PR exceeds the recommended size of 10000 lines.
            Please make sure you are NOT addressing multiple issues with one PR.
            Note this PR might be rejected due to its size.

  verify-labels:
    needs: [labeler, size-labeler, conventional-commit-labeler]
    name: verify labels
    runs-on: ubuntu-latest
    steps:
      - name: PRs should have at least one qualifying label
        uses: docker://agilepathway/pull-request-label-checker:latest@sha256:14f5f3dfda922496d07d53494e2d2b42885165f90677a1c03d600059b7706a61
        with:
          any_of: kind/chore,kind/bugfix,kind/feature,kind/dependency,kind/refactor
          repo_token: ${{ secrets.GITHUB_TOKEN }}