coverage.yml

name: Measure test coverage

on:
  push:
    branches: [ main ]
    paths:
      - '**.rs'
      - '**.toml'
      - '.github/workflows/**'
  pull_request:
    branches: [ main ]
    paths:
      - '**.rs'
      - '**.toml'
      - '.github/workflows/**'
  workflow_dispatch:

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

jobs:
  coverage:
    runs-on: ubuntu-latest

    steps:
      - name: Setup
        run: |
          rustup component add llvm-tools-preview
          cargo install grcov

      - name: Checkout code
        uses: actions/checkout@v3

      - name: Measure test coverage
        env:
          RUSTFLAGS: "-Cinstrument-coverage"
          LLVM_PROFILE_FILE: "coverage-%m-%p.profraw"
        run: |
          cargo test -p pop3-codec --all-features
          grcov . \
            --source-dir . \
            --binary-path target/debug \
            --branch \
            --keep-only 'pop3-codec/src/**' \
            --output-types "lcov" \
            --llvm > coveralls.lcov

      - name: Upload to Coveralls
        uses: coverallsapp/github-action@v2
        with:
          format: lcov
          file: coveralls.lcov