sudo: false
language: emacs-lisp

cache:
  directories:
  - $HOME/local

env:
  global:
    - PATH=$HOME/local/bin:$HOME/local/evm/bin:$HOME/local/cask/bin:$PATH
  matrix:
    - EMACS_BINARY=emacs-25.1-travis MAKE_TEST=test
    - EMACS_BINARY=emacs-25.2-travis MAKE_TEST=test
    - EMACS_BINARY=emacs-25.3-travis MAKE_TEST=test
    - EMACS_BINARY=emacs-26.1-travis MAKE_TEST=test
    - EMACS_BINARY=emacs-git-snapshot-travis MAKE_TEST=test

stages:
  - check
  - test

jobs:
  include:
    # linting for code quality
    - stage: check
      env: EMACS_BINARY=emacs-25.1-travis MAKE_TEST=lint
    - stage: check
      env: EMACS_BINARY=emacs-25.2-travis MAKE_TEST=lint
    - stage: check
      env: EMACS_BINARY=emacs-25.3-travis MAKE_TEST=lint
    - stage: check
      env: EMACS_BINARY=emacs-26.1-travis MAKE_TEST=lint
    - stage: check
      env: EMACS_BINARY=emacs-git-snapshot-travis MAKE_TEST=lint

    # "matrix" of tests is implicit in the "test" stage

  allow_failures:
    - env: EMACS_BINARY=emacs-git-snapshot-travis MAKE_TEST=test
    - env: EMACS_BINARY=emacs-git-snapshot-travis MAKE_TEST=lint

before_script:
  - sh travis-ci/install-evm.sh
  - evm install $EMACS_BINARY --use --skip
  - sh travis-ci/install-cask.sh
script:
  - emacs --version
  - make $MAKE_TEST