cargo_cache:
  folder: $CARGO_HOME/registry
  fingerprint_script: cat Cargo.lock || echo ""

env:
  # Build by default; don't just check
  BUILD: build
  RUSTFLAGS: -D warnings
  RUSTDOCFLAGS: -D warnings
  TOOL: cargo
  # The MSRV
  TOOLCHAIN: 1.63.0
  ZFLAGS:

# Tests that don't require executing the build binaries
build: &BUILD
  build_script:
    - . $HOME/.cargo/env || true
    - $TOOL +$TOOLCHAIN -Vv
    - rustc +$TOOLCHAIN -Vv
    - $TOOL +$TOOLCHAIN $BUILD $ZFLAGS --target $TARGET --all-targets
    - $TOOL +$TOOLCHAIN doc $ZFLAGS --no-deps --target $TARGET
    - $TOOL +$TOOLCHAIN clippy $ZFLAGS --target $TARGET --all-targets -- -D warnings
    - if [ -z "$NOHACK" ]; then mkdir -p $HOME/.cargo/bin; export PATH=$HOME/.cargo/bin:$PATH; fi
    - if [ -z "$NOHACK" ]; then curl -LsSf https://github.com/taiki-e/cargo-hack/releases/latest/download/cargo-hack-${HOST:-$TARGET}.tar.gz | tar xzf - -C ~/.cargo/bin; fi
    - if [ -z "$NOHACK" ]; then $TOOL +$TOOLCHAIN hack $ZFLAGS check --target $TARGET --each-feature; fi

# Tests that do require executing the binaries
test: &TEST
  << : *BUILD
  test_script:
    - . $HOME/.cargo/env || true
    - $TOOL +$TOOLCHAIN test --target $TARGET

# Test FreeBSD in a full VM.  Test the i686 target too, in the
# same VM.  The binary will be built in 32-bit mode, but will execute on a
# 64-bit kernel and in a 64-bit environment.  Our tests don't execute any of
# the system's binaries, so the environment shouldn't matter.
task:
  env:
    TARGET: x86_64-unknown-freebsd
  matrix:
    - name: FreeBSD 12 amd64 & i686
      freebsd_instance:
        image: freebsd-12-4-release-amd64
    - name: FreeBSD 14 amd64 & i686
      freebsd_instance:
        image_family: freebsd-14-0-snap
      # Enable tests that would fail on FreeBSD 12
      RUSTFLAGS: --cfg fbsd14 -D warnings
      RUSTDOCFLAGS: --cfg fbsd14
  setup_script:
    - kldload mqueuefs
    - fetch https://sh.rustup.rs -o rustup.sh
    - sh rustup.sh -y --profile=minimal --default-toolchain $TOOLCHAIN
    - . $HOME/.cargo/env
    - rustup target add i686-unknown-freebsd
    - rustup component add --toolchain $TOOLCHAIN clippy
  << : *TEST
  i386_test_script:
    - . $HOME/.cargo/env
    - cargo build --target i686-unknown-freebsd
    - cargo doc --no-deps --target i686-unknown-freebsd
    - cargo test --target i686-unknown-freebsd
  i386_feature_script:
    - . $HOME/.cargo/env
    - if [ -z "$NOHACK" ]; then cargo hack check --each-feature --target i686-unknown-freebsd; fi
  before_cache_script: rm -rf $CARGO_HOME/registry/index

# Test macOS aarch64 in a full VM
task:
  name: macOS aarch64
  env:
    TARGET: aarch64-apple-darwin
  macos_instance:
    image: ghcr.io/cirruslabs/macos-ventura-base:latest
  setup_script:
    - curl --proto '=https' --tlsv1.2 -sSf -o rustup.sh https://sh.rustup.rs
    - sh rustup.sh -y --profile=minimal --default-toolchain $TOOLCHAIN
    - . $HOME/.cargo/env
    - rustup component add --toolchain $TOOLCHAIN clippy
  << : *TEST
  before_cache_script: rm -rf $CARGO_HOME/registry/index

# Use cross for QEMU-based testing
# cross needs to execute Docker, so we must use Cirrus's Docker Builder task.
task:
  env:
    RUST_TEST_THREADS: 1            # QEMU works best with 1 thread
    HOME: /tmp/home
    HOST: x86_64-unknown-linux-gnu
    PATH: $HOME/.cargo/bin:$PATH
    RUSTFLAGS: --cfg qemu -D warnings
    TOOL: cross
  matrix:
    - name: Linux arm gnueabi
      env:
        TARGET: arm-unknown-linux-gnueabi
    - name: Linux armv7 gnueabihf
      env:
        TARGET: armv7-unknown-linux-gnueabihf
    - name: Linux i686
      env:
        TARGET: i686-unknown-linux-gnu
    - name: Linux i686 musl
      env:
        TARGET: i686-unknown-linux-musl
    - name: Linux MIPS
      env:
        TARGET: mips-unknown-linux-gnu
    - name: Linux MIPS64
      env:
        TARGET: mips64-unknown-linux-gnuabi64
    - name: Linux MIPS64 el
      env:
        TARGET: mips64el-unknown-linux-gnuabi64
    - name: Linux mipsel
      env:
        TARGET: mipsel-unknown-linux-gnu
    - name: Linux powerpc64le
      env:
        TARGET: powerpc64le-unknown-linux-gnu
  compute_engine_instance:
    image_project: cirrus-images
    image: family/docker-builder
    platform: linux
    cpu: 1                          # Since QEMU will only use 1 thread
    memory: 4G
  setup_script:
    - mkdir /tmp/home
    - curl --proto '=https' --tlsv1.2 -sSf -o rustup.sh https://sh.rustup.rs
    - sh rustup.sh -y --profile=minimal --default-toolchain $TOOLCHAIN
    - . $HOME/.cargo/env
    - cargo install cross --version 0.2.1 # cross 0.2.2 bumped the MSRV to 1.58.1
  << : *TEST
  before_cache_script: rm -rf $CARGO_HOME/registry/index

# Tasks for Linux native builds
task:
  matrix:
    - name: Linux aarch64
      arm_container:
        image: rust:1.63.0
      env:
        TARGET: aarch64-unknown-linux-gnu
    - name: Linux x86_64
      container:
        image: rust:1.63.0
      env:
        TARGET: x86_64-unknown-linux-gnu
    - name: Linux x86_64 musl
      container:
        image: rust:1.63.0
      env:
        TARGET: x86_64-unknown-linux-musl
  setup_script:
    - rustup target add $TARGET
    - rustup component add clippy
  << : *TEST
  before_cache_script: rm -rf $CARGO_HOME/registry/index

task:
  name: Rust Stable
  container:
    image: rust:latest
  env:
    TARGET: x86_64-unknown-linux-gnu
    TOOLCHAIN:
  setup_script:
    - rustup target add $TARGET
    - rustup component add clippy
  << : *TEST
  before_cache_script: rm -rf $CARGO_HOME/registry/index

# Tasks for cross-compiling, but no testing
task:
  container:
    image: rust:1.63.0
  env:
    BUILD: check
    HOST: x86_64-unknown-linux-gnu
  matrix:
    # Cross claims to support Android, but when it tries to run Nix's tests it
    # reports undefined symbol references.
    - name: Android aarch64
      env:
        TARGET: aarch64-linux-android
    - name: Android arm
      env:
        TARGET: arm-linux-androideabi
    - name: Android armv7
      env:
        TARGET: armv7-linux-androideabi
    - name: Android i686
      env:
        TARGET: i686-linux-android
    - name: Android x86_64
      env:
        TARGET: x86_64-linux-android
    - name: Linux arm-musleabi
      env:
        TARGET: arm-unknown-linux-musleabi
    - name: Fuchsia x86_64
      env:
        TARGET: x86_64-fuchsia
    - name: Illumos
      env:
        TARGET: x86_64-unknown-illumos
    # Cross claims to support running tests on iOS, but it actually doesn't.
    # https://github.com/rust-embedded/cross/issues/535
    - name: iOS aarch64
      env:
        # cargo hack tries to invoke the iphonesimulator SDK for iOS
        NOHACK: 1
        TARGET: aarch64-apple-ios
    - name: iOS x86_64
      env:
        # cargo hack tries to invoke the iphonesimulator SDK for iOS
        NOHACK: 1
        TARGET: x86_64-apple-ios
    # Cross testing on powerpc fails with "undefined reference to renameat2".
    # Perhaps cross is using too-old a version?
    - name: Linux powerpc
      env:
        TARGET: powerpc-unknown-linux-gnu
    # Cross claims to support Linux powerpc64, but it really doesn't.
    # https://github.com/rust-embedded/cross/issues/441
    - name: Linux powerpc64
      env:
        TARGET: powerpc64-unknown-linux-gnu
    - name: Linux s390x
      env:
        TARGET: s390x-unknown-linux-gnu
    - name: Linux x32
      env:
        TARGET: x86_64-unknown-linux-gnux32
    - name: macOS x86_64
      env:
        TARGET: x86_64-apple-darwin
    - name: NetBSD x86_64
      env:
        TARGET: x86_64-unknown-netbsd
  setup_script:
    - rustup target add $TARGET
    - rustup toolchain install $TOOLCHAIN --profile minimal --target $TARGET
    - rustup component add --toolchain $TOOLCHAIN clippy
  << : *BUILD
  before_cache_script: rm -rf $CARGO_HOME/registry/index

task:
  container:
    image: rust:1.63.0
  env:
    BUILD: check
  name: Redox x86_64
  env:
    HOST: x86_64-unknown-linux-gnu
    TARGET: x86_64-unknown-redox
    # Redox's MSRV policy is unclear.  Until they define it, use nightly.
    TOOLCHAIN: nightly
  setup_script:
    - rustup target add $TARGET
    - rustup toolchain install $TOOLCHAIN --profile minimal --target $TARGET
    - rustup component add --toolchain $TOOLCHAIN clippy
  << : *BUILD
  before_cache_script: rm -rf $CARGO_HOME/registry/index

# Rust Tier 3 targets can't use Rustup
task:
  container:
    image: rustlang/rust:nightly
  env:
    BUILD: check
    HOST: x86_64-unknown-linux-gnu
    TOOLCHAIN: nightly
    ZFLAGS: -Zbuild-std
  matrix:
    - name: DragonFly BSD x86_64
      env:
        TARGET: x86_64-unknown-dragonfly
    - name: OpenBSD x86_64
      env:
        TARGET: x86_64-unknown-openbsd
    - name: Linux armv7 uclibceabihf
      env:
        TARGET: armv7-unknown-linux-uclibceabihf
    - name: Haiku x86_64
      env:
        TARGET: x86_64-unknown-haiku
  setup_script:
    - rustup component add rust-src
  << : *BUILD
  before_cache_script: rm -rf $CARGO_HOME/registry/index

# Test that we can build with the lowest version of all dependencies.
# "cargo test" doesn't work because some of our dev-dependencies, like
# rand, can't build with their own minimal dependencies.
task:
  name: Minver
  env:
    HOST: x86_64-unknown-linux-gnu
    TOOLCHAIN: nightly
  container:
    image: rustlang/rust:nightly
  setup_script:
    - cargo update -Zminimal-versions
  check_script:
    - cargo check
  before_cache_script: rm -rf $CARGO_HOME/registry/index

# Tasks that checks if the code is formatted right using `cargo fmt` tool
task:
  name: Rust Formatter
  container:
    image: rust:latest
  setup_script: rustup +$TOOLCHAIN component add rustfmt
  test_script: $TOOL +$TOOLCHAIN fmt --all -- --check **/*.rs