# Travis config for Constantine
language: c

cache:
  directories:
    - nim-devel
    - nim-stable

matrix:
  include:
    # Constantine only works with Nim devel
    # Build and test using both gcc and clang
    # Build and test on both x86-64 and ARM64
    # Ubuntu Bionic (18.04) is needed, it includes
    # GCC 7 codegen fixes to addcarry_u64.
    # Clang 9 (and GCC-6) are needed for inline assembly "flag output constraints"
    - dist: bionic
      arch: amd64
      env:
        - ARCH=amd64
        - CHANNEL=devel
      compiler: gcc

    - dist: bionic
      arch: arm64
      env:
        - ARCH=arm64
        - CHANNEL=devel
      compiler: gcc

    - dist: bionic
      arch: amd64
      env:
        - ARCH=amd64
        - CHANNEL=devel
      compiler: clang
      # addons:
      #   apt:
      #     sources:
      #       - ubuntu-toolchain-r-test
      #       - llvm-toolchain-bionic-9.0 # LLVM 9 repo is disallowed
      #     packages:
      #       - clang-9.0
      # env:
      #   - MATRIX_EVAL="CC=clang-9.0 && CXX=clang++-9.0"

    # On OSX we only test against clang (gcc is mapped to clang by default)
    - os: osx
      osx_image: xcode11.5 # Need xcode 11.4.2 min for Clang 9
      arch: amd64
      env:
        - ARCH=amd64
        - CHANNEL=devel
      compiler: clang
  fast_finish: true

# Submodules are only for benchmarks, don't clone them
git:
  submodules: false

addons:
  apt:
    packages:
      - libgmp-dev
      - parallel
  homebrew:
    packages:
      - gmp
      # Travis `bundle` bug: https://travis-ci.community/t/macos-build-fails-because-of-homebrew-bundle-unknown-command/7296/28
      # - parallel

before_install:
  - if [[ "$TRAVIS_OS_NAME" == "osx" ]]; then
      HOMEBREW_NO_AUTO_UPDATE=1 brew install parallel;
    fi
  - |
    if [ "${CHANNEL}" = stable ]; then
      BRANCH="v$(curl https://nim-lang.org/channels/stable)"
    else
      BRANCH="${CHANNEL}"
    fi

install:
  # Detect caching of Nim compiler
  - |
    if [ ! -x "nim-${CHANNEL}/bin/nim" ]; then
      git clone -b "${BRANCH}" https://github.com/nim-lang/nim "nim-${CHANNEL}/"
      pushd "nim-${CHANNEL}"
      git clone --depth 1 https://github.com/nim-lang/csources csources/
      pushd csources
      sh build.sh
      popd
      rm -rf csources
      bin/nim c koch
      ./koch boot -d:release
      ./koch tools
    else
      pushd "nim-${CHANNEL}"
      git fetch origin "${BRANCH}"
      if [[ $(git merge FETCH_HEAD | grep -c "Already up to date.") -ne 1 ]]; then
        bin/nim c koch
        ./koch boot -d:release
        ./koch tools
      fi
    fi
    popd
before_script:
    - export PATH="$PWD/nim-${CHANNEL}/bin${PATH:+:$PATH}"
script:
    - nimble refresh
    - nimble install gmp stew
    # Installing Clang9.0 or later is a pain in Travis
    # for inline assembly "flag output constraint"
    # Also MacOS build is timing out with 2 series of tests.
    - |
      if [[ "$TRAVIS_COMPILER" == "clang" ]]; then
        nimble test_parallel_no_assembler
      else
        nimble test_parallel
        if [[ "$ARCH" != "arm64" ]]; then
          nimble test_parallel_no_assembler
        fi
      fi
branches:
  except:
    - gh-pages