language: go

go:
  - 1.9.x
  - 1.10.x
  - 1.11.x
  - 1.12.x
  - 1.13.x
  - tip

os:
  - linux
  - linux-ppc64le
  - osx
  - windows

matrix:
  allow_failures:
    - go: tip

install:
  - go get -v -t ./...

before_script:
  - |
    if [[ $TRAVIS_GO_VERSION == '1.13.x' && $TRAVIS_OS_NAME == 'linux' && $(arch) != 'ppc64le' ]]; then
      curl -sfL https://install.goreleaser.com/github.com/golangci/golangci-lint.sh | sh -s -- -b $(go env GOPATH)/bin
    fi

script:
  - |
    if [ $(arch) == "ppc64le" ]; then
      go test -cpu 1,4 -v
    else
      go test -race -cpu 1,4 -v
    fi
  - |
    if [ $(arch) == "ppc64le" ]; then
      go test -v -tags appengine
    else
      go test -race -v -tags appengine
    fi
  - |
    if [[ $TRAVIS_GO_VERSION == '1.13.x' && $TRAVIS_OS_NAME == 'linux' && $(arch) != 'ppc64le' ]]; then
      golangci-lint run
    fi

sudo: false