package client
 
 import "regexp"
 
 var headerRegexp = regexp.MustCompile(`\ADocker/.+\s\((.+)\)\z`)
 
 // getDockerOS returns the operating system based on the server header from the daemon.
 func getDockerOS(serverHeader string) string {
 	var osType string
 	matches := headerRegexp.FindStringSubmatch(serverHeader)
 	if len(matches) > 0 {
 		osType = matches[1]
 	}
 	return osType
 }