# Travis CI script borrows heavily from CraneStation/wasmtime project.
os:
  - linux
  - osx
  - windows
language: rust
rust:
    - 1.36.0
    - stable
    - beta
    - nightly
matrix:
  allow_failures:
    # We try to be compatible with beta and nightly, but they occasionally
    # fail, so we don't allow them to hold up people using stable.
    - rust: beta
    - rust: nightly
  # Similarly, we don't need to hold up people using stable while we wait
  # for the results which may fail.
  fast_finish: true
dist: xenial
sudo: false
# Caching done according to pointers found in
# https://levans.fr/rust_travis_cache.html
cache:
  directories:
    - $HOME/.cargo
before_cache:
  - rm -rf /home/travis/.cargo/registry
before_install:
  - if [[ "$TRAVIS_OS_NAME" == "windows" ]]; then choco install python3; fi
  - if [[ "$TRAVIS_OS_NAME" == "windows" ]]; then export PATH="/c/Python37:/c/Python37/Scripts:$PATH"; fi
before_script:
  # If an old version of rustfmt from cargo is already installed, uninstall
  # it, since it can prevent the installation of the new version from rustup.
  - cargo uninstall rustfmt || true
  - cargo install --list
  # If we're testing beta or nightly, we still need to install the stable
  # toolchain so that we can run the stable version of rustfmt.
  - rustup toolchain install stable
  # Install the stable version of rustfmt.
  - rustup component add --toolchain=stable rustfmt-preview
  - rustup component list --toolchain=stable
  - rustup show
  - rustfmt +stable --version || echo fail
  # Sometimes the component isn't actually ready after being installed, and
  # rustup update makes it ready.
  - rustup update
  - rustfmt +stable --version
script: ./test-all.sh