code: func CurrentPackage() string {
  	for _, root := range gobuild.Default.SrcDirs() {
  		if pkg, ok := hasSubdir(root, "."); ok {
  			return pkg
  		}
  	}
  	return ""
  }
docs: // CurrentPackage returns the go package of the current directory, or "" if it cannot
  // be derived from the GOPATH.