public void HandleCommand()

in src/PortingAssistant.Client/PortingAssistantCLI.cs [72:125]
46 lines of code
10 McCabe index (conditional complexity)

        public void HandleCommand(String[] args)
        {
            var TargetFrameworks = new HashSet<string> { "net5.0", "netcoreapp3.1", "netstandard2.1" };

            Parser.Default.ParseArguments<AssessOptions, SchemaOptions>(args)
                .WithNotParsed(HandleParseError)
                .WithParsed<AssessOptions>(o =>
                {
                    isAssess = true;
                    if (string.IsNullOrEmpty(o.SolutionPath) || !File.Exists(o.SolutionPath) || !o.SolutionPath.EndsWith(".sln"))
                    {
                        Console.WriteLine("Invalid command, please provide valid solution path");
                        Environment.Exit(-1);
                    }
                    SolutionPath = o.SolutionPath;

                    if (string.IsNullOrEmpty(o.OutputPath) || !Directory.Exists(o.OutputPath))
                    {
                        Console.WriteLine("Invalid output path " + OutputPath);
                        Environment.Exit(-1);
                    }
                    OutputPath = o.OutputPath;

                    if (!TargetFrameworks.Contains(o.Target.ToLower()))
                    {
                        Console.WriteLine("Invalid targetFramework " + OutputPath);
                        Environment.Exit(-1);
                    }
                    Target = o.Target;

                    Tag = o.Tag;

                    Profile = o.Profile;

                    if (o.IgnoreProjects != null)
                    {
                        IgnoreProjects = o.IgnoreProjects.ToList();
                    }

                    if (o.PortingProjects != null)
                    {
                        PortingProjects = o.PortingProjects.ToList();
                    }
                })
                .WithParsed<SchemaOptions>(o =>
                {
                    isSchema = true;
                    if (o.SchemaVersion)
                    {
                        schemaVersion = o.SchemaVersion;
                    }

                }); ;
        }