read and parse + update RevitINI files from custom actions

ReadWriteRevitIni

public static void ReadWriteRevitIniPaths() {
            var iniLocations = Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.ApplicationData), "Autodesk", "Revit");
            foreach (var dir in Directory.GetDirectories(iniLocations)) {
                if (dir.Contains("Addins")) { continue; }
                foreach (var file in Directory.GetFiles(dir)) {
                    if (!Path.GetFileName(file).Equals("Revit.ini")) { continue; }

                    var contents = File.ReadAllLines(file);
                    //setup dictionary
                    var dict = new Dictionary<string, List<string>>();
                    var key = "";
                    foreach (var line in contents) {
                        if (string.IsNullOrEmpty(line)) { continue; }
                        if (line.StartsWith("[")) {
                            //this is a key
                            key = line;
                            dict.Add(key, new List<string>());
                            continue;
                        }
                        dict[key].Add(line);
                    }

                    var directories = dict["[Directories]"];
                    var match = "AdditionalRenderAppearancePaths";
                    var renderPaths = directories.FirstOrDefault(x => x.StartsWith(match));
                    var userDuluxDataPath = $@"%APPDATA%\Dulux";
                    if (renderPaths != null) {
                        if (!renderPaths.Contains(userDuluxDataPath)) {
                            dict["[Directories]"].Remove(renderPaths);
                            var parsed = renderPaths + $@"|{userDuluxDataPath}";
                            dict["[Directories]"].Add(parsed);
                        }
                    }
                    else {
                        //add the entries
                        dict["[Directories]"].Add($"{match}={userDuluxDataPath}");
                    }

                    //Write out file
                    var newContents = new List<string>();
                    foreach (var pair in dict) {
                        newContents.Add(pair.Key);
                        pair.Value.ForEach(x => newContents.Add(x));
                    }

                    try { File.WriteAllLines(file, newContents); }
                    catch { }
                }
            }
        }