ServiceClientGenerator.ProjectFileCreator.GetProjectSourceFolders C# (CSharp) Method

        private IList<string> GetProjectSourceFolders(ProjectFileConfiguration projectFileConfiguration, string serviceRootFolder)
        {
            // Start with the standard generated code folders for the platform
            var sourceCodeFolders = new List<string>
            {
                "Generated", 
                @"Generated\Model", 
                @"Generated\Model\Internal", 
                @"Generated\Model\Internal\MarshallTransformations"
            };

            var platformSubFolders = projectFileConfiguration.PlatformCodeFolders;
            sourceCodeFolders.AddRange(platformSubFolders.Select(folder => Path.Combine(@"Generated", folder)));

            // Augment the returned folders with any custom subfolders already in existence. If the custom folder 
            // ends with a recognised platform, only add it to the set if it matches the platform being generated
            if (Directory.Exists(serviceRootFolder))
            {
                var subFolders = Directory.GetDirectories(serviceRootFolder, "*", SearchOption.AllDirectories);
                if (subFolders.Any())
                {
                    foreach (var folder in subFolders)
                    {
                        var serviceRelativeFolder = folder.Substring(serviceRootFolder.Length);

                        if (!serviceRelativeFolder.StartsWith(@"\Custom", StringComparison.OrdinalIgnoreCase))
                            continue;

                        

                        if (projectFileConfiguration.IsPlatformCodeFolder(serviceRelativeFolder))
                        {
                            if (projectFileConfiguration.IsValidPlatformPathForProject(serviceRelativeFolder))
                                sourceCodeFolders.Add(serviceRelativeFolder.TrimStart('\\'));
                        }
                        else
                            sourceCodeFolders.Add(serviceRelativeFolder.TrimStart('\\'));
                    }
                }
            }

            var foldersThatExist = new List<string>();
            foreach (var folder in sourceCodeFolders)
            {
                if (Directory.Exists(Path.Combine(serviceRootFolder, folder)))
                    foldersThatExist.Add(folder);
            }

            // sort so we get a predictable layout
            foldersThatExist.Sort(StringComparer.OrdinalIgnoreCase);
            return foldersThatExist;
        }