language: generic
cache:
  # Cache the global cargo directory, but NOT the local `target` directory which
  # we cannot reuse anyway when the nightly changes (and it grows quite large
  # over time).
  directories:
    - /home/travis/.cargo

os:
- linux
- osx
dist: xenial

before_script:
# install extra stuff for cross-compilation
- if [[ "$TRAVIS_OS_NAME" == linux ]]; then sudo apt update && sudo apt install gcc-multilib; fi
# macOS weirdness (https://github.com/travis-ci/travis-ci/issues/6307, https://github.com/travis-ci/travis-ci/issues/10165)
- if [[ "$TRAVIS_OS_NAME" == osx ]]; then rvm get stable; fi
# Compute the rust version we use. We do not use "language: rust" to have more control here.
- |
  if [[ "$TRAVIS_EVENT_TYPE" == cron ]]; then
    RUST_TOOLCHAIN=nightly
  else
    RUST_TOOLCHAIN=$(cat rust-version)
  fi
- |
  if [ "$TRAVIS_OS_NAME" == osx ]; then
    export MIRI_SYSROOT_BASE=~/Library/Caches/miri.miri.miri/
  else
    export MIRI_SYSROOT_BASE=~/.cache/miri/
  fi
- |
  if [[ "$TRAVIS_OS_NAME" == osx ]]; then
    FOREIGN_TARGET=i686-apple-darwin
  else
    FOREIGN_TARGET=i686-unknown-linux-gnu
  fi
# install Rust
- curl https://build.travis-ci.org/files/rustup-init.sh -sSf | sh -s -- -y --default-toolchain "$RUST_TOOLCHAIN"
- export PATH=$HOME/.cargo/bin:$PATH
- rustc --version

script:
- set -e
- |
  # Build and install miri
  cargo build --release --all-features --all-targets &&
  cargo install --all-features --force --path .
- |
  # Get ourselves a MIR-full libstd for the host and a foreign architecture
  cargo miri setup &&
  cargo miri setup --target "$FOREIGN_TARGET"
- |
  # Test miri with full MIR, on the host and other architectures
  MIRI_SYSROOT=$MIRI_SYSROOT_BASE/HOST cargo test --release --all-features &&
  MIRI_SYSROOT=$MIRI_SYSROOT_BASE MIRI_TARGET=$FOREIGN_TARGET cargo test --release --all-features
- |
  # Test cargo integration
  (cd test-cargo-miri && MIRI_SYSROOT=$MIRI_SYSROOT_BASE/HOST ./run-test.py)

notifications:
  email:
    on_success: never
branches:
  only:
  - master
env:
  global:
  - RUST_TEST_NOCAPTURE=1