#   BLAKE2 reference source code package - Travis testing configuration
#
#   Copyright 2020, Samuel Neves <sneves@dei.uc.pt>.  You may use this under the
#   terms of the CC0, the OpenSSL Licence, or the Apache Public License 2.0, at
#   your option.  The terms of these licenses can be found at:
#
#   - CC0 1.0 Universal : http://creativecommons.org/publicdomain/zero/1.0
#   - OpenSSL license   : https://www.openssl.org/source/license.html
#   - Apache 2.0        : http://www.apache.org/licenses/LICENSE-2.0
#
#   More information about the BLAKE2 hash function can be found at
#   https://blake2.net.

# DO NOT create top level (global) keys like env, arch, os, compiler.
# The top level/global keys invoke [unwanted] matrix expansion. Also
# see https://stackoverflow.com/q/58473000/608639 and
# https://docs.travis-ci.com/user/reference/overview/ and
# https://docs.travis-ci.com/user/multi-cpu-architectures and
# https://github.com/travis-ci/travis-yml/blob/master/schema.json.

language: c
dist: bionic

git:
  depth: 5

# Use jobs rather than matrix since we are precisely specifiying our
# test cases. Do not move any of the keys (env, os, arch, compiler, etc)
# into global. Putting them in global invokes the matrix expansion.
jobs:
  include:
    # AMD64 testing
    - name: GCC, amd64 (ref)
      os: linux
      arch: amd64
      compiler: gcc
      env:
        - BUILD_DIR=ref
        - MAKEFILE=makefile
    - name: GCC, amd64 (sse)
      os: linux
      arch: amd64
      compiler: gcc
      env:
        - BUILD_DIR=sse
        - MAKEFILE=makefile
    - name: Clang, amd64 (ref)
      os: linux
      arch: amd64
      compiler: clang
      env:
        - CC=clang-8
        - BUILD_DIR=ref
        - MAKEFILE=makefile
    - name: Clang, amd64 (sse)
      os: linux
      arch: amd64
      compiler: clang
      env:
        - CC=clang-8
        - BUILD_DIR=sse
        - MAKEFILE=makefile
    # OS X testing
    #   - OS X 10.15.4 uses Xcode 11.6
    #   - OS X 10.11 uses Xcode 7.3
    - name: Clang, OS X, amd64 (ref)
      os: osx
      osx_image: xcode11.6
      arch: amd64
      compiler: clang
      env:
        - BUILD_DIR=ref
        - MAKEFILE=makefile
    - name: Clang, OS X, amd64 (sse)
      os: osx
      osx_image: xcode11.6
      arch: amd64
      compiler: clang
      env:
        - BUILD_DIR=ref
        - MAKEFILE=makefile
    - name: Clang, OS X, amd64 (ref)
      os: osx
      osx_image: xcode7.3
      arch: amd64
      compiler: clang
      env:
        - BUILD_DIR=ref
        - MAKEFILE=makefile
    - name: Clang, OS X, amd64 (sse)
      os: osx
      osx_image: xcode7.3
      arch: amd64
      compiler: clang
      env:
        - BUILD_DIR=ref
        - MAKEFILE=makefile
    # Aarch64 testing
    - name: GCC, aarch64 (ref)
      os: linux
      arch: arm64
      compiler: gcc
      dist: bionic
      env:
        - BUILD_DIR=ref
        - MAKEFILE=makefile
    - name: GCC, aarch64 (neon)
      os: linux
      arch: arm64
      compiler: gcc
      dist: bionic
      env:
        - BUILD_DIR=neon
        - MAKEFILE=makefile-aarch64
    - name: Clang, aarch64 (ref)
      os: linux
      arch: arm64
      compiler: clang
      dist: bionic
      env:
        - CC=clang-8
        - BUILD_DIR=ref
        - MAKEFILE=makefile
    - name: Clang, aarch64 (neon)
      os: linux
      arch: arm64
      compiler: clang
      dist: bionic
      env:
        - CC=clang-8
        - BUILD_DIR=neon
        - MAKEFILE=makefile-aarch64
    # PowerPC testing
    - name: GCC, ppc64le (ref)
      os: linux
      arch: ppc64le
      compiler: gcc
      dist: bionic
      env:
        - BUILD_DIR=ref
        - MAKEFILE=makefile
    - name: GCC, ppc64le (power8)
      os: linux
      arch: ppc64le
      compiler: gcc
      env:
        - BUILD_DIR=power8
        - MAKEFILE=makefile
    - name: Clang, ppc64le (ref)
      os: linux
      arch: ppc64le
      compiler: clang
      dist: bionic
      env:
        - CC=clang-8
        - BUILD_DIR=ref
        - MAKEFILE=makefile
    - name: Clang, ppc64le (power8)
      os: linux
      arch: ppc64le
      compiler: clang
      dist: bionic
      env:
        - CC=clang-8
        - BUILD_DIR=power8
        - MAKEFILE=makefile
    # s390x testing
    - name: GCC, s390x (ref)
      os: linux
      arch: s390x
      compiler: gcc
      dist: bionic
      env:
        - BUILD_DIR=ref
        - MAKEFILE=makefile
    - name: Clang, s390x (ref)
      os: linux
      arch: s390x
      compiler: clang
      dist: bionic
      env:
        - CC=clang-8
        - BUILD_DIR=ref
        - MAKEFILE=makefile

  allow_failures:
    # Clang has a fair amount of trouble
    # on platforms Apple does not support
    - os: linux
      arch: s390x
      compiler: clang
    # Clang 7.0 and below will likely have trouble on ppc64le
    # due to https://bugs.llvm.org/show_bug.cgi?id=39704.
    # Also see https://bugs.llvm.org/show_bug.cgi?id=46571.
    - os: linux
      arch: ppc64le
      compiler: clang
    # And https://bugs.llvm.org/show_bug.cgi?id=46572
    - os: linux
      arch: arm64
      compiler: clang

before_install:
  - |
    # Clang 7 compiler is completely broken on PPC64 and s390x
    # Clang 8 is needed for OpenMP on Aarch64
    if [[ "$TRAVIS_OS_NAME" == "linux" ]] && [[ "$TRAVIS_COMPILER" == "clang" ]]; then
        # https://github.com/travis-ci/travis-ci/issues/9037
        sudo apt-key adv --keyserver hkp://keyserver.ubuntu.com:80 --recv 0C49F3730359A145
        sudo apt-get -qq -y install --no-install-recommends clang-8 || true
        sudo apt-get -qq -y install --no-install-recommends libomp-8-dev || true
        sudo apt-get -qq -y install --no-install-recommends libomp5-8 || true
    fi

script:
  - |
    cd "${BUILD_DIR}"
    make CC="${CC}" -f "${MAKEFILE}" -j 3

# Whitelist branches to avoid testing feature branches twice
branches:
  only:
    - master
    - /\/ci$/

#notifications:
#  email:
#    recipients:
#      - blake2-build@example.com
#    on_success: always # default: change
#    on_failure: always # default: always