.travis.yml

---
language: crystal
sudo: required

matrix:
  include:
  # FIXME: disabled because Travis CI doesn't provide a working Crystal image anymore
  #        (see https://github.com/travis-ci/travis-build/pull/1987)
  #
  ## Linux
  #- os: linux
  #  dist: xenial
  #- os: linux
  #  dist: bionic
  - os: linux
    dist: bionic
    language: minimal
    install: ~
    before_script: ~
    env: GENERATE_LIB=1 # regenerate the binding
    script:
    - docker-compose build devel
    - docker-compose run --rm -u $UID devel sh -c
      "make clean
      && make
      && crystal tool format --check src spec bench
      && crystal spec
      && make benchmark"

  # macOS
  # FIXME: builds on macOS are disabled because it's not possible to use
  #        "brew link" with the icu4c formula anymore which makes compilation
  #        fail for some reason (Crystal macro run doesnt seems to take in
  #        account compiler env. var. correctly).
  #        The library is not yet compatible with ICU version shipped with macOS.
  #- os: osx
  #  osx_image: xcode11.2
  #- os: osx
  #  osx_image: xcode11.2
  #  env: GENERATE_LIB=1 # regenerate the binding

  # FIXME: disabled because Travis CI doesn't provide a working Crystal image anymore
  #        (see https://github.com/travis-ci/travis-build/pull/1987)
  #
  ## publish the documentation on GitHub pages
  #- os: linux
  #  stage: deploy
  #  install:
  #  script: crystal docs
  #  deploy:
  #    provider: pages
  #    local_dir: docs/
  #    target_branch: gh-pages
  #    github_token: $GITHUB_TOKEN
  #    skip_cleanup: true
  #    on:
  #      branch: master

install: |
  set -e
  set -x

  case $TRAVIS_OS_NAME in
  linux)
    sudo apt-get -qq update
    if [[ -n $GENERATE_LIB ]]; then
      sudo apt-get install -y llvm-3.8-dev libclang-3.8-dev
      # FIXME: ugly fix since the libclang-3.8-dev package is bugged
      sudo ln -s $(llvm-config-3.8 --libdir)/libclang.so /usr/lib/
    fi
    sudo apt-get install -y libicu-dev
    ;;
  osx)
    export HOMEBREW_NO_AUTO_UPDATE=1

    if [[ -n $GENERATE_LIB ]]; then
      # install LLVM and Clang 4 (a libgen dependency)
      brew install llvm@7
      brew link --force --overwrite llvm@7
      # FIXME: the "libclang.dylib" shared object is manually added to the ld
      #        library path since the llvm the formula don't do it properly
      find $(brew --prefix llvm@7)/lib -type f -name "libclang.dylib" -exec ln -sf {} $(brew --prefix)/lib \; -quit
    fi

    # install or upgrade icu4c
    brew ls --versions icu4c && brew upgrade icu4c || brew install icu4c
    ICU_VERSION=$(brew ls --versions icu4c | tail -1 | awk '{print $2}')
    ICU_CELLAR_DIR=$(brew --cellar icu4c)/$ICU_VERSION
    # since version 1.9.0, "brew link" does not work for software
    # already provided by macOS anymore
    brew switch icu4c $ICU_VERSION

    # make sure that ICU executables are added to the PATH
    # and that the shared objects files can be found by the linker
    export PATH="$ICU_CELLAR_DIR/bin:$PATH"
    export DYLD_FALLBACK_LIBRARY_PATH="$ICU_CELLAR_DIR/lib:$DYLD_FALLBACK_LIBRARY_PATH"
    export PKG_CONFIG_PATH="$ICU_CELLAR_DIR/lib/pkgconfig:$PKG_CONFIG_PATH"

    ;;
  *)
    exit 1;;
  esac

  set +x

before_script:
- crystal run src/icu_info.cr -- --version # displays the version of ICU
- "[ -z $GENERATE_LIB ] || { make clean; make ;}"

script:
  crystal tool format --check src spec bench
  && crystal spec
  && make benchmark