oxc_coverage_instrument 0.3.13

name: Coverage

on:
  push:
    branches: [main]

concurrency:
  group: coverage-${{ github.ref }}
  cancel-in-progress: true

permissions: {}

env:
  CARGO_TERM_COLOR: always

jobs:
  coverage:
    name: Coverage
    runs-on: ubuntu-latest
    permissions:
      contents: write
    steps:
      - uses: actions/checkout@v6

      - uses: dtolnay/rust-toolchain@stable
        with:
          components: llvm-tools-preview

      - uses: taiki-e/install-action@cargo-llvm-cov

      - name: Run tests with coverage
        run: |
          mkdir -p coverage
          cargo llvm-cov -p oxc_coverage_instrument --lcov --output-path coverage/lcov.info

      - name: Compute coverage
        run: |
          COVERAGE=$(awk -F: '
            /^LF:/ { total += $2 }
            /^LH:/ { hit += $2 }
            END { if (total > 0) printf "%.1f", (hit/total)*100; else print "0" }
          ' coverage/lcov.info)
          echo "COVERAGE=$COVERAGE" >> "$GITHUB_ENV"
          echo "Coverage: $COVERAGE%"

      - name: Compute badge color
        run: |
          int=${COVERAGE%.*}
          if [ "$int" -ge 90 ]; then color="brightgreen"
          elif [ "$int" -ge 80 ]; then color="green"
          elif [ "$int" -ge 70 ]; then color="yellowgreen"
          elif [ "$int" -ge 60 ]; then color="yellow"
          elif [ "$int" -ge 50 ]; then color="orange"
          else color="red"
          fi
          echo "BADGE_COLOR=$color" >> "$GITHUB_ENV"

      - name: Update coverage badge
        run: |
          git config user.name "github-actions[bot]"
          git config user.email "41898282+github-actions[bot]@users.noreply.github.com"

          if ! git ls-remote --heads origin badges | grep -q badges; then
            git checkout --orphan badges
            git rm -rf . 2>/dev/null || true
            echo "{}" > coverage.json
            git add coverage.json
            git commit -m "chore: init badges branch"
            git push origin badges
            git checkout main
          fi

          git fetch origin badges
          git worktree add /tmp/badges --detach origin/badges
          cd /tmp/badges
          git checkout -B badges origin/badges

          echo "{\"schemaVersion\":1,\"label\":\"coverage\",\"message\":\"${COVERAGE}%\",\"color\":\"${BADGE_COLOR}\"}" > coverage.json

          git add coverage.json
          git diff --cached --quiet || git commit -m "chore: update coverage badge to ${COVERAGE}%"
          git push origin badges

          cd "$GITHUB_WORKSPACE"
          git worktree remove /tmp/badges