func FormatEnvVar()

in server/coscel/cos_tlv.go [113:125]

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

func FormatEnvVar(name string, value string) (string, error) {
	if !utf8.ValidString(name) {
		return "", fmt.Errorf("malformed env name, contains non-utf8 character: [%s]", name)
	}
	if !utf8.ValidString(value) {
		return "", fmt.Errorf("malformed env value, contains non-utf8 character: [%s]", value)
	}
	var envVarNameRegexp = regexp.MustCompile("^[a-zA-Z_][a-zA-Z0-9_]*$")
	if !envVarNameRegexp.MatchString(name) {
		return "", fmt.Errorf("malformed env name [%s], env name must start with an alpha character or '_', followed by a string of alphanumeric characters or '_' (%s)", name, envVarNameRegexp)
	}
	return name + "=" + value, nil
}