Build with go 1.9 in travis

.travis.yml

@@ -1,50 +1,28 @@
 language: go
-
 go:
-  # this is a lie - we will use 1.8.3 which isn't supported yet
-  # by downloading it later in "before_install" section
-  # we use 1.8.3 due to https://github.com/contester/runlib/issues/5#issuecomment-241419381
-  # which could have also been achieved via vendoring an older version, but for let's
-  # keep up-to-date with latest version
-  - 1.6
+  - 1.9
 
 env:
-  - "MY_GOOS=linux MY_GOARCH=amd64"
-  - "MY_GOOS=darwin MY_GOARCH=amd64"
-  - "MY_GOOS=windows MY_GOARCH=amd64"
-  - "MY_GOOS=windows MY_GOARCH=386"
-
-before_install:
-  - curl -o go.tar.gz -sL https://storage.googleapis.com/golang/go1.8.3.linux-amd64.tar.gz
-  - tar -C $HOME -xf go.tar.gz
-  - rm go.tar.gz
-  - export GOROOT="${HOME}/go"
-  - export PATH="${GOROOT}/bin:${PATH}"
-  - export GOOS="${MY_GOOS}"
-  - export GOARCH="${MY_GOARCH}"
-  - go version
-  - go env
-  - "test $GOOS.$GOARCH != linux.amd64 || go get github.com/axw/gocov/gocov github.com/mattn/goveralls github.com/pierrre/gotestcover"
+  - "GIMME_OS=linux GIMME_ARCH=amd64"
+  - "GIMME_OS=darwin GIMME_ARCH=amd64"
+  - "GIMME_OS=windows GIMME_ARCH=amd64"
+  - "GIMME_OS=windows GIMME_ARCH=386"
 
 install:
-  - "go get github.com/taskcluster/livelog"
-  - "go get github.com/gordonklaus/ineffassign"
+  - "test $GIMME_OS.$GIMME_ARCH != linux.amd64 || go get github.com/axw/gocov/gocov github.com/mattn/goveralls github.com/pierrre/gotestcover github.com/taskcluster/livelog github.com/gordonklaus/ineffassign"
 
 script:
-  - export GOOS=linux
-  - export GOARCH=amd64
-  - "go get ./gw-codegen"
-  - "go generate"
-  - "export GOOS=${MY_GOOS}"
-  - "export GOARCH=${MY_GOARCH}"
-  - "git status"
-  - "test $(git status --porcelain | wc -l) == 0"
+  - "test $GIMME_OS.$GIMME_ARCH != linux.amd64 || go get ./gw-codegen"
+  - "test $GIMME_OS.$GIMME_ARCH != linux.amd64 || go generate"
+  - "test $GIMME_OS.$GIMME_ARCH != linux.amd64 || git status"
+  - "test $GIMME_OS.$GIMME_ARCH != linux.amd64 || test $(git status --porcelain | wc -l) == 0"
   - "go get -v -t ./..."
-  - "if test $GOOS.$GOARCH = linux.amd64; then GORACE=history_size=7 travis_wait 30 ${GOPATH}/bin/gotestcover -v -coverprofile=coverage.report -race -timeout 1h ./... && go tool cover -func=coverage.report; fi"
-  - "test $GOOS.$GOARCH != linux.amd64 || ${GOPATH}/bin/ineffassign ."
+  - "test $GIMME_OS.$GIMME_ARCH != linux.amd64 || GORACE=history_size=7 travis_wait 30 ${GOPATH}/bin/gotestcover -v -coverprofile=coverage.report -race -timeout 1h ./..."
+  - "test $GIMME_OS.$GIMME_ARCH != linux.amd64 || go tool cover -func=coverage.report"
+  - "test $GIMME_OS.$GIMME_ARCH != linux.amd64 || ${GOPATH}/bin/ineffassign ."
 
 after_script:
-  - "test $GOOS.$GOARCH != linux.amd64 || ${GOPATH}/bin/goveralls -coverprofile=coverage.report -service=travis-ci"
+  - "test $GIMME_OS.$GIMME_ARCH != linux.amd64 || ${GOPATH}/bin/goveralls -coverprofile=coverage.report -service=travis-ci"
 
 before_deploy:
   - "source .travis_rename_releases.sh"