Golang

https://github.com/go-modules-by-example/index/blob/master/008_vendor_example/README.md

go version
go mod init janmg.com/blob-to-queue
go clean -modcache
go mod tidy
go run blob-to-queue.go config.go blob.go nsgflowlogs.go azure-eventhub.go kafka.go

go mod init
go mod vendor
go get github.com/RangelReale/osin
go get github.com/pborman/uuid
go run .

go version
go mod init janmg.com/blob-to-queue
go clean -modcache
go mod tidy
go run blob-to-queue.go config.go blob.go nsgflowlogs.go azure-eventhub.go kafka.go
go env -w CGO_ENABLED=0
go mod download
go mod init github.com/Azure/azure-sdk-for-go/sdk/storage/azblob
go mod init github.com/Azure/azure-sdk-for-go/sdk/storage/azblob/blockblob
go run blob-to-kafka.go
go mod init janmg.com/blob-to-kafka
go mod tidy

./vendor/
$GOROOT
$GOPATH

src,pkg,bin

cat /etc/profile.d/go.sh 
export GOPATH=$HOME/go
export PATH=$PATH:$GOPATH/bin
export OS_OUTPUT_GOPATH=0

GOROOT="/usr/lib/go"
GOPATH="/root/go"

hack/lib/build/binaries.sh
OS_EXTRA_GOPATH=$GOPATH

make build
 hack/build-go.sh
 hack/lib/build/binaries.sh
 228: `GOOS=${platform%/*} GOARCH=${platform##*/} go install -pkgdir "${OS_OUTPUT_PKGDIR}/${platform}" -tags "${OS_GOFLAGS_TAGS-} ${!platform_gotags_envvar:-}" -ldflags="${local_ldflags}" "${goflags[@]:+${goflags[@]}}" "${nonstatics[@]}"`

https://github.com/golang/go/wiki/GOPATH
https://github.com/golang/go/issues/17262

go env
export $GOPATH=$HOME/go
hack/env
OS_OUTPUT_GOPATH

./_output/local/pkgdir/linux/amd64/github.com/openshift/origin/vendor/github.com/RangelReale/osin.a
cp /root/go/pkg/linux_amd64/github.com/RangelReale/osin.a ./_output/local/pkgdir/linux/amd64/github.com/openshift/origin/vendor/github.com/RangelReale/osin.a

Godeps/Godeps.json

"github.com/RangelReale/osin"

cd /usr/src/origin; /root/go/bin/godep restore

perl -pi -w -e 's/\"github.com\/RangelReale\/osin\"/\"github.com\/janmg\/osin\"/g;' $( grep -rl '\"github.com\/RangelReale\/osin\"' )