.travis.yml

sudo: false

cache:
  directories:
    # Cache build artifacts to avoid constantly rebuilding. See:
    # https://8thlight.com/blog/rob-looby/2016/04/07/caching-elm-builds-on-travis-ci.html
    - tests/elm-stuff/build-artifacts
    # Install and cache sysconfcpus
    - sysconfcpus

env:
  matrix:
    - ELM_VERSION=0.18.0 TARGET_NODE_VERSION=node

before_install:
  - | # 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;
      git checkout 8cb9da66020fa4058e550bfae1182a12ac1e4eab;
      ./configure --prefix=$TRAVIS_BUILD_DIR/sysconfcpus;
      make && make install;
      cd ..;
    fi
install:
  - nvm install $TARGET_NODE_VERSION
  - nvm use $TARGET_NODE_VERSION
  - node --version
  - npm --version
  - npm install -g elm@$ELM_VERSION
  - npm install -g elm-test
  - npm install -g elm-format
  - mv $(npm config get prefix)/bin/elm-make $(npm config get prefix)/bin/elm-make-old
  - printf "#\041/bin/bash\n\necho \"Running elm-make with sysconfcpus -n 2\"\n\n$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
  - npm install
  - elm package install --yes

script:
  - elm test
  - elm-format --validate src/ tests/