# Copyright 2019 The Periph Authors. All rights reserved.
# Use of this source code is governed under the Apache License, Version 2.0
# that can be found in the LICENSE file.

language: go
sudo: false
dist: xenial
go_import_path: periph.io/x/periph

matrix:
  include:
  - go: 1.12.x
    env: GO111MODULE=on
    cache:
      directories:
        # go1.10+ 'go test' cache on linux (macOS and Windows are # different).
        - $HOME/.cache/go-build
        # go1.11+ with GO111MODULE=on
        - $GOPATH/pkg/mod
        # Cache tools sources. Manually verified that both misspell and ineffassign
        # only depend on the stdlib.
        - $GOPATH/src/github\.com
        # For shadow.
        - $GOPATH/src/golang\.org
    # Dear future me: if you touch this line, don't forget to update the
    # conditions below!
  - go: 1.7.6

before_script:
  - echo $TRAVIS_GO_VERSION
  - go get -t -v periph.io/x/periph/...
  - if [[ $TRAVIS_GO_VERSION != 1.7.6 ]]; then go get -u -v github.com/client9/misspell/cmd/misspell github.com/gordonklaus/ineffassign golang.org/x/tools/go/analysis/passes/shadow/cmd/shadow; fi

script:
  # Checks run on latest version.
  - if [[ $TRAVIS_GO_VERSION != 1.7.6 ]]; then echo 'Check Code is well formatted'; ! gofmt -s -d . | read; fi
  - if [[ $TRAVIS_GO_VERSION != 1.7.6 ]]; then echo 'Looking for external dependencies:'; go list -f '{{join .Imports "\n"}}' periph.io/x/periph/... | sort | uniq | grep -v ^periph.io/x/periph | xargs go list -f '{{if not .Standard}}- {{.ImportPath}}{{end}}'; fi
  - if [[ $TRAVIS_GO_VERSION != 1.7.6 ]]; then echo 'Erroring on external dependencies:'; ! go list -f '{{join .Imports "\n"}}' periph.io/x/periph/... | sort | uniq | grep -v ^periph.io/x/periph | xargs go list -f '{{if not .Standard}}Remove {{.ImportPath}}{{end}}' | grep -q Remove; fi
  - if [[ $TRAVIS_GO_VERSION != 1.7.6 ]]; then echo 'Erroring on /host depending on /devices:'; ! go list -f '{{.ImportPath}} depends on {{join .Imports ", "}}' periph.io/x/periph/host/... | sort | uniq | grep periph.io/x/periph/devices; fi
  - if [[ $TRAVIS_GO_VERSION != 1.7.6 ]]; then echo 'Erroring on /conn depending on /devices:'; ! go list -f '{{.ImportPath}} depends on {{join .Imports ", "}}' periph.io/x/periph/conn/... | sort | uniq | grep periph.io/x/periph/devices; fi
  - if [[ $TRAVIS_GO_VERSION != 1.7.6 ]]; then echo 'Erroring on /conn depending on /host:'; ! go list -f '{{.ImportPath}} depends on {{join .Imports ", "}}' periph.io/x/periph/conn/... | sort | uniq | grep periph.io/x/periph/host; fi
  - if [[ $TRAVIS_GO_VERSION != 1.7.6 ]]; then echo 'Erroring on misspelling'; ! misspell . | grep a; fi
  - if [[ $TRAVIS_GO_VERSION != 1.7.6 ]]; then ineffassign .; fi
  - if [[ $TRAVIS_GO_VERSION != 1.7.6 ]]; then ! go vet -vettool=$(which shadow) ./... |& grep -v '"err"' | grep -e '^[^#]'; fi
  - if [[ $TRAVIS_GO_VERSION != 1.7.6 ]]; then bash -c 'set -e; echo "" > coverage.txt; for d in $(go list ./...); do go test -covermode=count -coverprofile=p.out $d; if [ -f p.out ]; then cat p.out >> coverage.txt; rm p.out; fi; done'; fi
  - if [[ $TRAVIS_GO_VERSION != 1.7.6 ]]; then go test -race ./...; fi

  # Checks run on older version.
  - if [[ $TRAVIS_GO_VERSION == 1.7.6 ]]; then go test ./...; fi
  - if [[ $TRAVIS_GO_VERSION == 1.7.6 ]]; then if find . -path ./.git -prune -o -type f -executable -print | grep -e . ; then echo 'Do not commit executables'; false; fi; fi

after_success:
  - if [[ $TRAVIS_GO_VERSION != 1.7.6 ]]; then bash <(curl -s https://codecov.io/bash); fi