func makeOSInfo()

in providers/linux/os.go [156:200]
36 lines of code
10 McCabe index (conditional complexity)

func makeOSInfo(osRelease map[string]string) (*types.OSInfo, error) {
	os := &types.OSInfo{
		Type:     "linux",
		Platform: firstOf(osRelease, "ID", "DISTRIB_ID"),
		Name:     firstOf(osRelease, "NAME", "PRETTY_NAME"),
		Version:  firstOf(osRelease, "VERSION", "VERSION_ID", "DISTRIB_RELEASE"),
		Build:    osRelease["BUILD_ID"],
		Codename: firstOf(osRelease, "VERSION_CODENAME", "DISTRIB_CODENAME"),
	}

	if os.Codename == "" {
		// Some OSes use their own CODENAME keys (e.g UBUNTU_CODENAME).
		for k, v := range osRelease {
			if strings.Contains(k, "CODENAME") {
				os.Codename = v
				break
			}
		}
	}

	if os.Platform == "" {
		// Fallback to the first word of the Name field.
		os.Platform, _, _ = strings.Cut(os.Name, " ")
	}

	os.Family = linuxFamily(os.Platform)
	if os.Family == "" {
		// ID_LIKE is a space-separated list of OS identifiers that this
		// OS is similar to. Use this to figure out the Linux family.
		for _, id := range strings.Fields(osRelease["ID_LIKE"]) {
			os.Family = linuxFamily(id)
			if os.Family != "" {
				break
			}
		}
	}

	if osRelease["ID_LIKE"] == "suse" {
		extractVersionDetails(os, os.Version, versionRegexpSuse)
	} else if os.Version != "" {
		extractVersionDetails(os, os.Version, versionRegexp)
	}

	return os, nil
}