public static string Generate()

in openapi-diff/src/core/OpenApiDiff/HelpGenerator.cs [68:129]
50 lines of code
7 McCabe index (conditional complexity)

        public static string Generate(string template, Settings settings)
        {
            if (String.IsNullOrEmpty(template))
            {
                throw new ArgumentNullException("template");
            }

            // Reflect over properties in Settings to get documentation content
            var parameters = new List<Tuple<string, SettingsInfoAttribute>>();
            foreach (PropertyInfo property in typeof(Settings).GetProperties())
            {
                var doc = property.GetCustomAttributes<SettingsInfoAttribute>().FirstOrDefault();

                if (doc != null)
                {
                    parameters.Add(new Tuple<string, SettingsInfoAttribute>(property.Name, doc));
                }
            }

            // Generate usage syntax
            var syntaxSection = new StringBuilder("dotnet OpenApiDiff.dll ");
            foreach (var parameter in parameters.OrderBy(t => t.Item1).OrderByDescending(t => t.Item2.IsRequired))
            {
                if (parameter.Item2.IsRequired)
                {
                    syntaxSection.AppendFormat("-{0} <value> ", parameter.Item1);
                }
                else
                {
                    syntaxSection.AppendFormat("[-{0} <value>] ", parameter.Item1);
                }
            }

            // Generate parameters section
            var parametersSection = new StringBuilder();
            const string parametersPattern = @"\$parameters-start\$(.+)\$parameters-end\$";
            var parameterTemplate = Regex.Match(template, parametersPattern, RegexOptions.Singleline).Groups[1].Value.Trim();

            GetParametersInfo(typeof(Settings).GetProperties().OrderBy(p => p.Name), parametersSection, parameterTemplate,
                              "$parameter$", "$parameter-desc$");

            // Generate examples section.
            var examplesSection = new StringBuilder();
            const string examplesPattern = @"\$examples-start\$(.+)\$examples-end\$";
            var exampleTemplate = Regex.Match(template, examplesPattern, RegexOptions.Singleline).Groups[1].Value.Trim() + Environment.NewLine;
            foreach (HelpExample example in Examples)
            {
                examplesSection.AppendLine("  " + exampleTemplate.
                    Replace("$example$", example.Example).
                    Replace("$example-desc$", example.Description));
            }

            // Process template replacing all major sections.
            template = template.
                Replace("$version$", "0.1.0").
                Replace("$syntax$", syntaxSection.ToString());

            template = Regex.Replace(template, parametersPattern, parametersSection.ToString(), RegexOptions.Singleline);
            template = Regex.Replace(template, examplesPattern, examplesSection.ToString(), RegexOptions.Singleline);

            return template;
        }