---
name: Code Coverage
"on":
pull_request:
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
uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd
- 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
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
uses: codecov/codecov-action@671740ac38dd9b0130fbe1cec585b89eea48d3de with:
files: lcov.info
fail_ci_if_error: false
token: ${{ secrets.CODECOV_TOKEN }}
- name: Upload coverage artifacts
uses: actions/upload-artifact@bbbca2ddaa5d8feaa63e36b76fdaad77386f024f 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'
uses: actions/github-script@ed597411d8f924073f98dfc5c65a23a2325f34cd 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