L2Resolver/.github/workflows/coverage.yml at f0cc2492a015e25eee483a2bf3c3c66ec6109867 · defi-wonderland/L2Resolver · GitHub

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name: Coverage Check

on:
  pull_request:

env:
  COVERAGE_SENSITIVITY_PERCENT: 1
  MAINNET_RPC: ${{ secrets.MAINNET_RPC }}
  SEPOLIA_RPC: ${{ secrets.SEPOLIA_RPC }}

jobs:
  base-coverage:
    name: Generate base coverage
    runs-on: ubuntu-latest
    permissions:
      contents: read
    steps:
      - uses: actions/checkout@v5
        with:
          ref: ${{ github.event.pull_request.base.sha }}

      - name: Install Foundry
        uses: foundry-rs/foundry-toolchain@v1
        with:
          version: stable

      - name: Use Node.js
        uses: actions/setup-node@v4
        with:
          node-version: 20.x
          cache: "yarn"

      - name: Install dependencies
        run: yarn --frozen-lockfile

      - name: Restore base coverage cache
        id: cache-base
        uses: actions/cache@v4
        with:
          path: .coverage-base/lcov.info
          key: coverage-base-${{ github.event.pull_request.base.sha }}

      - name: Run base branch coverage
        if: steps.cache-base.outputs.cache-hit != 'true'
        run: yarn coverage

      - name: Prepare cached base lcov
        if: steps.cache-base.outputs.cache-hit != 'true'
        run: |
          mkdir -p .coverage-base
          cp lcov.info .coverage-base/lcov.info

      - name: Copy artifact file
        run: cp .coverage-base/lcov.info base-lcov.info

      - name: Upload base lcov as artifact
        uses: actions/upload-artifact@v4
        with:
          name: base-lcov
          path: base-lcov.info

  check-coverage:
    name: Check PR coverage
    runs-on: ubuntu-latest
    needs: base-coverage
    permissions:
      contents: read
      pull-requests: write
    steps:
      - uses: actions/checkout@v5

      - name: Install Foundry
        uses: foundry-rs/foundry-toolchain@v1
        with:
          version: stable

      - name: Use Node.js
        uses: actions/setup-node@v4
        with:
          node-version: 20.x
          cache: "yarn"

      - name: Install dependencies
        run: yarn --frozen-lockfile

      - name: Download base lcov artifact
        uses: actions/download-artifact@v4
        with:
          name: base-lcov
          path: .

      - name: Run current branch coverage
        run: yarn coverage

      - name: Setup LCOV
        uses: hrishikesh-kadam/setup-lcov@v1

      # Updates the comment on every PR push
      - name: Create a comment on the PR with the current branch coverage
        id: new-coverage
        if: hashFiles('lcov.info') != ''
        uses: zgosalvez/github-actions-report-lcov@v4
        with:
          coverage-files: lcov.info
          github-token: ${{ github.token }}
          update-comment: true

      - name: Compare previous coverage (against base branch)
        run: |
          if [ -f .coverage-base/lcov.info ]; then
            old=$(lcov --summary .coverage-base/lcov.info 2>/dev/null | awk '/lines\.+:/ {print $2}' | tr -d '%')
          else
            old=0
          fi
          head="${{ steps.new-coverage.outputs.total-coverage }}"
          [ -z "$head" ] && head=0
          new=$(awk -v a="$head" -v b="${{ env.COVERAGE_SENSITIVITY_PERCENT }}" 'BEGIN{printf "%.2f", a+b}')
          if awk "BEGIN {exit !($new < $old)}"; then
            echo "Coverage decreased from $old to $new"; exit 1
          fi