language: shell

matrix:
  include:
  - name: Git 2.21 on Ubuntu Xenial
    dist: xenial
    language: shell

  # === This will need to removed when Travis drops support ===
  - name: Git 2.15.1 on Ubuntu Trusty
    dist: trusty
    language: shell

  - name: Git on Mac
    os: osx
    osx_image: xcode8.3
    addons:
      homebrew:
        packages:
        - bash
        update: true

script:
# NOTE: we have to make sure we're on a branch (rather than on a detached HEAD)
# because tests rely on it.
- git checkout -b travis-ci-dummy-branch-name
- GIT_COMMITTER_NAME=Bob
  GIT_COMMITTER_EMAIL=bob@blob.net
  GIT_AUTHOR_NAME='Bob Blob'
  GIT_AUTHOR_EMAIL=bob@blob.net
  PROVEOPT=-v make test