cargo-changeset/.github/workflows/coverage.yml at main · lukidoescode/cargo-changeset · GitHub

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---
name: Coverage

on:
  push:
    branches: [main]
  pull_request:
    branches: [main]

permissions:
  contents: read

env:
  CARGO_TERM_COLOR: always

jobs:
  coverage:
    name: Code Coverage
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v6
        with:
          persist-credentials: false

      - name: Install Rust
        uses: dtolnay/rust-toolchain@stable

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

      - name: Cache cargo registry
        uses: actions/cache@v5
        with:
          path: ~/.cargo/registry
          key: ${{ runner.os }}-cargo-registry-${{ hashFiles('**/Cargo.lock') }}

      - name: Cache cargo index
        uses: actions/cache@v5
        with:
          path: ~/.cargo/git
          key: ${{ runner.os }}-cargo-index-${{ hashFiles('**/Cargo.lock') }}

      - name: Cache cargo build
        uses: actions/cache@v5
        with:
          path: target
          key: ${{ runner.os }}-cargo-build-target-${{ hashFiles('**/Cargo.lock') }}

      - name: Generate coverage
        run: cargo llvm-cov --workspace --all-features --json --output-path coverage.json

      - name: Extract coverage percentage
        id: coverage
        run: |
          COVERAGE=$(python3 -c "
          import json, sys
          data = json.load(open('coverage.json'))
          totals = data['data'][0]['totals']['lines']
          pct = totals['percent']
          print(f'{pct:.1f}')
          ")
          echo "percentage=$COVERAGE" >> "$GITHUB_OUTPUT"

      - name: Upload coverage artifact
        uses: actions/upload-artifact@v7
        with:
          name: coverage-report
          path: coverage.json

      - name: Update coverage badge
        if: github.event_name == 'push' && github.ref == 'refs/heads/main'
        uses: schneegans/dynamic-badges-action@v1.7.0
        with:
          auth: ${{ secrets.GIST_TOKEN }}
          gistID: ${{ secrets.COVERAGE_GIST_ID }}
          filename: cargo-changeset-coverage.json
          label: coverage
          message: ${{ steps.coverage.outputs.percentage }}%
          valColorRange: ${{ steps.coverage.outputs.percentage }}
          minColorRange: 50
          maxColorRange: 90