ci.yml

# This is a wrapper around ci/runtests.sh
# ci/runtests.sh is intended to be usable locally without github.

name: ci
on:
  pull_request:
  push:
  workflow_dispatch:

env:
  CARGO_TERM_COLOR: always

jobs:
  ci:
    strategy:
      matrix:
        include:
          - rust_version: stable

          # 1.85 is the earliest version that will build. Notice if it breaks,
          # though MSRV may be bumped as needed.
          - rust_version: 1.85
            no_clippy: yes

          - rust_version: nightly

    runs-on: ubuntu-latest

    steps:
      - uses: actions/checkout@v4

      - name: Cache Rust files
        uses: actions/cache@v4
        with:
          path: |
            ~/.cargo/
            target/ci/
          # Save a unique cache each time
          # (https://github.com/actions/cache/blob/main/tips-and-workarounds.md#update-a-cache)
          key: rust-${{ matrix.rust_version }}-${{ github.run_id }}
          # Load from the most recent match
          restore-keys: |
            rust-${{ matrix.rust_version }}

      - name: Rustup ${{ matrix.rust_version }}
        run: |
          rustup override set ${{ matrix.rust_version }}

      - name: Build and test ${{ matrix.rust_version }}
        env:
          # Older clippy has some unwanted lints, ignore them.
          NO_CLIPPY: ${{ matrix.no_clippy }}
        run: ./ci/runtests.sh