nsip/.github/workflows/coverage.yml at e28a5d4c8d484d55ddaf3dd2289f6b1f389a073b · epicpast/nsip · GitHub

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---
name: Code Coverage

"on":
  pull_request:
  # schedule:
  #   - cron: '0 0 * * 1'  # Weekly on Monday
  workflow_dispatch:

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

permissions:
  contents: read
  pull-requests: write

jobs:
  coverage:
    name: Generate Coverage Report
    runs-on: ubuntu-latest
    environment: copilot
    timeout-minutes: 30

    steps:
      - name: Checkout code
        # yamllint disable-line rule:line-length
        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd  # v6.0.2

      - name: Setup Rust with caching
        uses: ./.github/actions/setup-rust-cached
        with:
          toolchain: stable
          components: llvm-tools-preview
          cache-key: coverage

      - name: Install cargo-llvm-cov
        # yamllint disable-line rule:line-length
        uses: ./.github/actions/install-cargo-tool
        with:
          tool: cargo-llvm-cov@0.6.14

      - name: Generate coverage
        run: |
          cargo llvm-cov --all-features --workspace \
            --lcov --output-path lcov.info
          cargo llvm-cov --all-features --workspace \
            --html --output-dir coverage-html
          cargo llvm-cov --all-features --workspace \
            --json --output-path coverage.json

      - name: Parse coverage percentage
        id: coverage
        run: |
          COVERAGE=$(cargo llvm-cov \
            --all-features --workspace --summary-only \
            | grep -oP 'TOTAL\s+\d+\.\d+%' \
            | grep -oP '\d+\.\d+' || echo "0")
          echo "percentage=$COVERAGE" >> "$GITHUB_OUTPUT"
          echo "Coverage: ${COVERAGE}%"

      - name: Generate coverage report
        env:
          PERCENTAGE: ${{ steps.coverage.outputs.percentage }}
        run: |
          echo "# Code Coverage Report" > coverage-report.md
          echo "" >> coverage-report.md
          echo "**Overall Coverage:** ${PERCENTAGE}%" \
            >> coverage-report.md
          echo "" >> coverage-report.md
          echo "## Summary" >> coverage-report.md
          echo "" >> coverage-report.md
          echo "\`\`\`" >> coverage-report.md
          cargo llvm-cov --all-features --workspace \
            --summary-only >> coverage-report.md
          echo "\`\`\`" >> coverage-report.md
          echo "" >> coverage-report.md
          echo "Full HTML report available in CI artifacts." \
            >> coverage-report.md

      - name: Upload coverage to Codecov
        # yamllint disable-line rule:line-length
        uses: codecov/codecov-action@1af58845a975a7985b0beb0cbe6fbbb71a41dbad  # v5.1.2
        with:
          files: lcov.info
          fail_ci_if_error: false
          token: ${{ secrets.CODECOV_TOKEN }}

      - name: Upload coverage artifacts
        # yamllint disable-line rule:line-length
        uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a  # v7.0.1
        with:
          name: coverage-report
          path: |
            coverage-report.md
            coverage-html/
            lcov.info
            coverage.json
          retention-days: 30

      - name: Comment PR with coverage
        if: github.event_name == 'pull_request'
        # yamllint disable-line rule:line-length
        uses: actions/github-script@ed597411d8f924073f98dfc5c65a23a2325f34cd  # v8.0.0
        with:
          script: |
            const fs = require('fs');
            const report = fs.readFileSync(
              'coverage-report.md', 'utf8'
            );
            github.rest.issues.createComment({
              issue_number: context.issue.number,
              owner: context.repo.owner,
              repo: context.repo.repo,
              body: report
            });

      - name: Check coverage threshold
        env:
          COVERAGE: ${{ steps.coverage.outputs.percentage }}
        run: |
          THRESHOLD=80
          if (( $(echo "$COVERAGE < $THRESHOLD" \
                  | bc -l) )); then
            echo "Coverage ${COVERAGE}% is below ${THRESHOLD}%"
            echo "Consider adding more tests."
          else
            echo "Coverage ${COVERAGE}% meets ${THRESHOLD}%"
          fi