os:
  - linux
  - osx

# Do not choose a language; we provide our own build tools.
language: generic

# Caching so the next build will be fast too.
cache:
  directories:
    - $HOME/.ghc
    - $HOME/.cabal
    # Where GHC and Stackage packages (per specific resolver/snapshot) get installed.
    # Caching this avoids stack downloading GHC and building all the packages each time.
    - $HOME/.stack
    # Where stack produces build artifacts while building our project.
    # Caching this avoids stack having to re-build our whole project every time.
    - $TRAVIS_BUILD_DIR/waspc/.stack-work

# Ensure necessary system libraries are present.
addons:
  apt:
    packages:
      - libgmp-dev

before_install:
  - mkdir -p ~/.local/bin && export PATH=$HOME/.local/bin:$PATH
  # Download and install stack executable.
  # NOTE: While it might seem redundant to do this on every build, it only takes about a second to download it.
  - |
    if [ "$TRAVIS_OS_NAME" = "osx" ]
    then
      travis_retry curl --insecure -L https://get.haskellstack.org/stable/osx-x86_64.tar.gz | tar xz --strip-components=1 --include '*/stack' -C ~/.local/bin
    else
      travis_retry curl -L https://get.haskellstack.org/stable/linux-x86_64.tar.gz | tar xz --wildcards --strip-components=1 -C ~/.local/bin '*/stack'
    fi
  - stack --numeric-version

install:
  - cd $TRAVIS_BUILD_DIR/waspc
  # Build dependencies.
  # --no-terminal because Stack does some fancy stuff with Terminal which Travis does not support (is this still true?).
  # --install-ghc just tells stack to install ghc if it is missing (normally we would do it manually with stack setup).
  # --only-dependencies means only wasp dependencies will be built, no wasp source code will be built at this moment.
  - stack --no-terminal --install-ghc test --only-dependencies

script:
  # Build the wasp source code and its tests. Dependencies were already built before.
  - stack --no-terminal test

after_success:
  # Prepare releases to be deployed.
  - mkdir travis-releases/
  - mv "$(stack path --local-install-root)/bin/wasp" "travis-releases/wasp-${TRAVIS_OS_NAME}"

deploy:
  provider: releases
  api_key:
    # Encrypted github access key.
    secure: 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
  file: "travis-releases/wasp-${TRAVIS_OS_NAME}"
  skip_cleanup: true
  on:
    # Whenever we push a tagged commit, binary will be deployed to releases.
    tags: true