coverage.yml

on:
  push:
    branches: [ main, auto, canary ]
  pull_request:
    branches:
      - main

name: Test coverage

jobs:
  coverage:
    name: Collect test coverage
    runs-on: ubuntu-latest
    # nightly rust might break from time to time
    continue-on-error: true
    env:
      RUSTFLAGS: -D warnings
    steps:
      - uses: actions/checkout@v2
      - uses: actions-rs/toolchain@v1
        with:
          toolchain: nightly
          override: true
          components: llvm-tools-preview
      - uses: Swatinem/rust-cache@c5ed9ba6b7e1bb8aff90d43acd2f0af4990fa57c
      
      - name: Install latest nextest release
        uses: taiki-e/install-action@nextest
      - name: Install cargo-llvm-cov
        uses: taiki-e/install-action@cargo-llvm-cov
      
      - name: Collect coverage data
        run: cargo llvm-cov nextest
        # TODO: generate HTML report and upload it
        # (requires https://github.com/taiki-e/cargo-llvm-cov/pull/144#issuecomment-1072736931 to be addressed)