Circle CI yml configuration for Erlang 18.X builds

circle.yml

machine:
  environment:
    PATH: ${HOME}/otp_src_18.0/bin:${PATH}
general:
  artifacts:
    - ".eunit/"
dependencies:
  cache_directories:
    - "~/otp_src_18.0"
    - "~/rebar"
  pre:
    - if [ ! -d ~/otp_src_18.0 ]; then wget http://www.erlang.org/download/otp_src_18.0.tar.gz; tar zxvf otp_src_18.0.tar.gz -C $HOME; cd ~/otp_src_18.0 && ./configure && make && sudo make install; fi
    - if [ ! -f ~/otp_src_18.0/bin/rebar ]; then git clone git://github.com/rebar/rebar.git; cd rebar && ./bootstrap; cp rebar ~/otp_src_18.0/bin/rebar; fi
    - rebar get-deps
    - rebar compile

test:
  override:
    - make test
deployment:
  staging:
    branch: master
    heroku:
      appname: app-name