.travis.yml

# Currently only travis can
# - run Elixir tests (OTP 18+)
# - run on old Erlang version (OTP R16B)
# - submit coveralls report

language: erlang
branches:
    only:
        - master
matrix:
    include:
        - otp_release: 23.0
          env:
          - NEW_REBAR=true
          # hdr_histogram up to 0.4.0 fails to compile with OTP 23
          - XPROF_ERL_HIST=true
          - ELIXIR_VERSION=1.10.3
        - otp_release: 22.3
          env: NEW_REBAR=true
        - otp_release: 21.3
          env: NEW_REBAR=true
        - otp_release: 20.3
        - otp_release: 19.3
        - otp_release: 19.3
          env: XPROF_ERL_HIST=true
        - otp_release: 18.3
          dist: trusty
          env: COWBOY_VERSION=1.1.2
cache:
    directories:
        - $HOME/.cache/rebar3
        - $HOME/.kiex/
install:
    - if [ -n "$ELIXIR_VERSION" ]; then kiex use "$ELIXIR_VERSION" --default || (kiex install "$ELIXIR_VERSION" && kiex use "$ELIXIR_VERSION" --default); fi
    - if [ -n "$NEW_REBAR" ]; then curl -O -L https://s3.amazonaws.com/rebar3/rebar3 && chmod +x ./rebar3 ; fi
    - ./rebar3 --version
    - ./rebar3 deps
script:
    - kiex use "$ELIXIR_VERSION" && make test
    - if [ $TRAVIS_OTP_RELEASE = "21.3" ]; then make doc dialyzer; fi
    - if [ $TRAVIS_OTP_RELEASE = "18.3" ]; then make dialyzer; fi   # run dialyzer with cowboy 1.x too
after_success:
    - if [ $TRAVIS_OTP_RELEASE = "21.3" ]; then ./rebar3 as test coveralls send; fi