This is, roughly, what "go install" does: It will copy a binary to $GOBIN. If the binary is not built, it will be built from source. If the source is not avail

This is, roughly, what "go install" does: It will copy a binary to $GOBIN. If the binary is not built, it will be built from source. If the source is not available on the local system, it will be fetched. During the build, any dependencies of the build target not available of the local system will be fetched.