pr-auto-assign-and-label.yml

name: 🤖 Auto-assign & label PR

on:
  pull_request:
    types: [opened]

permissions:
  pull-requests: write
  issues: write

jobs:
  auto:
    runs-on: ubuntu-latest
    steps:
      - name: Auto assign author & reviewers
        uses: kentaro-m/auto-assign-action@v1.2.5
        with:
          configuration-path: .github/auto_assign.yml

      - name: Label by title keywords
        uses: actions/github-script@v7
        with:
          script: |
            const title = context.payload.pull_request.title.toLowerCase();
            const rules = [
              { re: /\bfeat|feature\b/,  label: 'feature'  },
              { re: /\bfix\b/,           label: 'fix'      },
              { re: /\bbug\b/,           label: 'bug'      },
              { re: /\bstyle\b/,         label: 'style'    },
              { re: /\brefactor\b/,      label: 'refactor' },
              { re: /\bchore\b/,         label: 'chore'    },
              { re: /\bdocs?\b/,         label: 'docs'     },
              { re: /\btest(s)?\b/,      label: 'test'     },
            ];
            const matched = rules.filter(r => r.re.test(title)).map(r => r.label);
            if (matched.length) {
              await github.rest.issues.addLabels({
                owner: context.repo.owner,
                repo: context.repo.repo,
                issue_number: context.payload.pull_request.number,
                labels: matched
              });
              core.info(`Added labels: ${matched.join(', ')}`);
            } else {
              core.info('No matching labels from title.');
            }