private static bool TryGetSupportRuntimeNode()

in src/Tasks/Microsoft.NET.Build.Tasks/WriteAppConfigWithSupportedRuntime.cs [90:144]
49 lines of code
14 McCabe index (conditional complexity)

        private static bool TryGetSupportRuntimeNode(
            string targetFrameworkIdentifier,
            string targetFrameworkVersion,
            string targetFrameworkProfile,
            string runtimeVersion,
            out XElement supportedRuntime)
        {
            supportedRuntime = null;

            if (targetFrameworkIdentifier == ".NETFramework"
                && Version.TryParse(targetFrameworkVersion.TrimStart('v', 'V'), out Version parsedVersion))
            {
                if (parsedVersion.Major < 4)
                {
                    string supportedRuntimeVersion = null;

                    if (parsedVersion.Major == 1 && parsedVersion.Minor >= 0 && parsedVersion.Minor > 1)
                    {
                        supportedRuntimeVersion = "v1.0.3705";
                    }
                    else if (parsedVersion.Major == 1 && parsedVersion.Minor >= 1)
                    {
                        supportedRuntimeVersion = "v1.1.4322";
                    }
                    else if (parsedVersion.Major >= 2 && parsedVersion.Major < 4)
                    {
                        supportedRuntimeVersion = "v2.0.50727";
                    }

                    if (supportedRuntimeVersion == null)
                    {
                        return false;
                    }

                    supportedRuntime =
                           new XElement(
                               "supportedRuntime",
                               new XAttribute("version", supportedRuntimeVersion));

                    return true;
                }
                else if (parsedVersion.Major == 4)
                {
                    string profileInSku = targetFrameworkProfile != null ? $",Profile={targetFrameworkProfile}" : string.Empty;
                    supportedRuntime =
                        new XElement(
                            "supportedRuntime",
                            new XAttribute("version", "v4.0"),
                                new XAttribute("sku", $"{targetFrameworkIdentifier},Version={targetFrameworkVersion}{profileInSku}"));

                    return true;
                }
            }
            return false;
        }