env:
  CARGO_HOME: /tmp/cargo

task:
  matrix:
    - install_cmake_script: apt-get update && apt-get install -y cmake
      matrix:
        - name: test (linux)
          container:
            image: rust:latest
            cpu: 4
            memory: 8G
          rustfmt_script: rustup component add rustfmt-preview && cd rust && cargo fmt --all -- --check
          clippy_script: rustup component add clippy-preview && cd rust && cargo clippy --all -- -D warnings

        - name: test (linux nightly)
          allow_failures: true
          container:
            image: rustlang/rust:nightly
            cpu: 4
            memory: 8G
    - osx_instance:
        image: high-sierra-xcode-9.4.1
      env:
        PATH: $PATH:$CARGO_HOME/bin
      install_cmake_script: brew install cmake || brew upgrade cmake
      matrix:
        - name: test (macOS)
          install_rust_script: curl https://sh.rustup.rs -sSf | sh -s -- -y --default-toolchain stable
          rustfmt_script: rustup component add rustfmt-preview && cd rust && cargo fmt --all -- --check
          clippy_script: rustup component add clippy-preview && cd rust && cargo clippy --all -- -D warnings
        - name: test (macOS nightly)
          allow_failures: true
          install_rust_script: curl https://sh.rustup.rs -sSf | sh -s -- -y --default-toolchain nightly

  cargo_cache:
    folder: $CARGO_HOME/registry
    fingerprint_script: cat rust/Cargo.lock
  build_script: cd rust && cargo build --verbose --all --jobs 4
  test_script:
      - cd rust
      - cargo test --verbose --all --jobs 4
  before_cache_script: rm -rf $CARGO_HOME/registry/index