.travis.yml

# From (Thanks!): https://gist.github.com/y0ssar1an/df2dab474520c4086926f672c52db139
language: go

# Only the last two Go releases are supported by the Go team with security
# updates. Any versions older than that should be considered deprecated.
# Don't bother testing with them. tip builds your code with the latest
# development version of Go. This can warn you that your code will break
# in the next version of Go. Don't worry! Later we declare that test runs
# are allowed to fail on Go tip.
go:
  - "1.13"
  - "1.12"
  - "1.11"
  - master

# Skip the install step. Don't `go get` dependencies. Only build with the
# code in vendor/
install: true

matrix:
  # It's ok if our code fails on unstable development versions of Go.
  allow_failures:
    - go: master
  # Don't wait for tip tests to finish. Mark the test run green if the
  # tests pass on the stable versions of Go.
  fast_finish: true

# Don't email me the results of the test runs.
notifications:
  email: false

# Anything in before_script that returns a nonzero exit code will
# flunk the build and immediately stop. It's sorta like having
# set -e enabled in bash. 
before_script:
  - GO_FILES=$(find . -iname '*.go' -type f | grep -v /vendor/) # All the .go files, excluding vendor/
  - go get -u golang.org/x/lint/golint                          # Linter
  - curl -sfL https://raw.githubusercontent.com/golangci/golangci-lint/master/install.sh| sh -s v1.21.0
  - go get github.com/fzipp/gocyclo
  - go get github.com/stretchr/testify/assert                   # Framework for test asserting

# script always run to completion (set +e). All of these code checks are must haves
# in a modern Go project.
script:
  - go get ./...
  - ./bin/golangci-lint run -v --enable=gofmt --skip-dirs-use-default ./...   # Fail if a .go file hasn't been formatted with gofmt
  - go test -v -race ./...                   # Run all the tests with the race detector enabled
  - go vet ./...                             # go vet is the official Go static analyzer
  - ./bin/golangci-lint run -v --enable=megacheck ./...
  #- gocyclo -over 19 $GO_FILES               # forbid code with huge functions
  - golint -set_exit_status $(go list ./...) # one last linter