This GitHub Action installs a Rust toolchain using rustup. It further integrates into the ecosystem. Caching for Rust tools and build artifacts is enabled. Environment variables are set to optimize the cache hits. Problem Matchers are provided for build messages (cargo, clippy) and formatting (rustfmt).

The action is heavily inspired by dtolnay's https://github.com/dtolnay/rust-toolchain and extends it with further features.

name: "Test Suite"
on:
  push:
  pull_request:

jobs:
  test:
    name: cargo test
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v3
      - uses: actions-rust-lang/setup-rust-toolchain@v1
      - run: cargo test --all-features
 
  # Check formatting with rustfmt
  formatting:
    name: cargo fmt
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v3
      # Ensure rustfmt is installed and setup problem matcher
      - uses: actions-rust-lang/setup-rust-toolchain@v1
        with:
          components: rustfmt
      - name: Rustfmt Check
        uses: actions-rust-lang/rustfmt@v1

All inputs are optional. If a toolchain file (i.e., rust-toolchain or rust-toolchain.toml) is found in the root of the repository, it takes precedence. All input values are ignored if a toolchain file exists.

The scripts and documentation in this project are released under the MIT License.