func()

in plugin/step/install/linux/apt/apt.go [208:232]

• 20 lines of code
• 3 McCabe index (conditional complexity)

func (s *Step) checkInstalled() error {
	chkCtx, chkCtxCancel := context.WithTimeout(context.Background(), time.Duration(s.DpkgCheckTimeoutSeconds)*time.Second)
	defer chkCtxCancel()

	// run `dpkg -W -f "${binary:Package}\t${Version}" chef` to get current package
	buf := &bytes.Buffer{}
	cmd := exec.CommandContext(chkCtx, s.DPKGBinary, "-W", "-f", "${binary:Package}\t${Version}", s.PackageName)
	cmd.Stdin = nil
	cmd.Stderr = os.Stderr
	cmd.Stdout = buf

	if err := cmd.Run(); err != nil {
		return err
	}

	inst := strings.TrimSpace(buf.String())
	if s.packageVersionRegex.MatchString(inst) {
		return &go2chef.ErrChefAlreadyInstalled{
			Installed: inst,
			Requested: s.packageVersionRegex.String(),
		}
	}

	return nil
}