sudo: false

cache:
  directories:
    - tests/elm-stuff/build-artifacts
    - sysconfcpus

os:
  - linux
  - osx

env:
  matrix:
    - ELM_VERSION=0.18.0 TARGET_NODE_VERSION=node
    - ELM_VERSION=0.18.0 TARGET_NODE_VERSION=4.0

before_install:
  - if [ ${TRAVIS_OS_NAME} == "osx" ];
    then brew update; brew install nvm; mkdir ~/.nvm; export NVM_DIR=~/.nvm; source $(brew --prefix nvm)/nvm.sh;
    fi
  - echo -e "Host github.com\n\tStrictHostKeyChecking no\n" >> ~/.ssh/config
  - | # epic build time improvement - see https://github.com/elm-lang/elm-compiler/issues/1473#issuecomment-245704142
    if [ ! -d sysconfcpus/bin ];
    then
      git clone https://github.com/obmarg/libsysconfcpus.git;
      cd libsysconfcpus;
      ./configure --prefix=$TRAVIS_BUILD_DIR/sysconfcpus;
      make && make install;
      cd ..;
    fi


install:
  - nvm install $TARGET_NODE_VERSION
  - nvm use $TARGET_NODE_VERSION
  - node --version
  - npm --version
  - npm install -g elm-use elm-test@0.18.3
  - elm-use $ELM_VERSION
  - mv $(npm config get prefix)/bin/elm-make $(npm config get prefix)/bin/elm-make-old
  - printf '%s\n\n' '#!/bin/bash' 'echo "Running elm-make with sysconfcpus -n 2"' '$TRAVIS_BUILD_DIR/sysconfcpus/bin/sysconfcpus -n 2 elm-make-old "$@"' > $(npm config get prefix)/bin/elm-make
  - chmod +x $(npm config get prefix)/bin/elm-make
  - travis_retry elm-package install --yes
  - cd tests
  - npm install
  - travis_retry elm-package install --yes
  - cd ..

script:
  - elm-format --validate src tests examples readme-example
  - cd examples
  - elm-make --output=/dev/null --yes
  - cd ../readme-example
  - elm-make --output=/dev/null --yes
  - cd ..
  - npm test