auto-assign-reviewers.yml

name: 'Auto Assign Reviewers'

on:
  pull_request:
    types: [opened, labeled]

jobs:
  assign_reviewers:
    runs-on: ubuntu-latest
    steps:
      - name: 'Set Assignee to Author'
        uses: actions/github-script@v6
        with:
          script: |
            if (context.payload.pull_request) {
              await github.rest.issues.addAssignees({
                owner: context.repo.owner,
                repo: context.repo.repo,
                issue_number: context.payload.pull_request.number,
                assignees: [context.payload.pull_request.user.login],
              });
            } else {
              console.log('No pull_request data found in context.payload');
            }

      - name: 'Add "확인 요청" Label if not present'
        uses: actions/github-script@v6
        with:
          script: |
            const labels = context.payload.pull_request.labels || [];
            if (!labels.some(label => label.name === '확인 요청')) {
              await github.rest.issues.addLabels({
                owner: context.repo.owner,
                repo: context.repo.repo,
                issue_number: context.payload.pull_request.number,
                labels: ['확인 요청'],
              });
            }

      - name: 'Determine Number of Reviewers'
        id: determine_reviewers
        uses: actions/github-script@v6
        with:
          script: |
            const targetBranch = context.payload.pull_request.base.ref;
            const reviewers = targetBranch === 'main' ? 3 : 2;
            core.setOutput('number_of_reviewers', reviewers);

      - name: 'Assign Reviewers'
        uses: kentaro-m/auto-assign-action@v2.0.0
        with:
          repo-token: '${{ secrets.GITHUB_TOKEN }}'
          configuration-path: '.github/auto_assign_config.yml'
          numberOfReviewers: ${{ steps.determine_reviewers.outputs.number_of_reviewers }}