func()

in gce-containers-startup/volumes/volumes.go [538:552]

• 14 lines of code
• 4 McCabe index (conditional complexity)

func (env Env) getSinglePropertyFromDeviceWithLsblk(devicePath string, property string) (string, error) {
	output, err := env.OsCommandRunner.Run(wrapToEnterHostMountNamespace("lsblk", "-n", "-o", property, devicePath)...)
	if err != nil {
		return "", err
	}
	if strings.Count(output, "\n") > 1 {
		// Try to print standard lsblk output to show what's there.
		debugOutput, debugErr := env.OsCommandRunner.Run(wrapToEnterHostMountNamespace("lsblk")...)
		if debugErr != nil {
			return "", fmt.Errorf("Received multiline output, but can't run standard lsblk for debug output: %s", debugErr)
		}
		return "", fmt.Errorf("Received multiline output from lsblk. The device likely contains subpartitions:\n%s", debugOutput)
	}
	return strings.TrimSpace(output), nil
}