Method FetchUpdate

loader/Main/Updater.cs:115–161

()

        }

        static async Task<Update> FetchUpdate()
        {
            try
            {
                var json = await DownloadString(ApiUrl);
                var match = new Regex("\"tag_name\":\\s+\"(.*)\"").Match(json);

                if (match.Success && match.Groups.Count > 1)
                {
                    var vtag = match.Groups[1].Value.ToLower();
                    if (vtag.StartsWith("v"))
                        vtag = vtag.Substring(1);

                    var remote = new Version(vtag);
                    var local = new Version(Program.VERSION);

                    if (remote.CompareTo(local) > 0)
                    {
                        string changes = "";
                        match = new Regex("\"body\":\\s+\"(.*)\"").Match(json);
                        if (match.Success && match.Groups.Count > 1)
                            changes = Regex.Unescape(match.Groups[1].Value);

                        string downloadUrl = "";
                        match = new Regex("\"browser_download_url\":\\s+\"(.*(\\d+\\.?)(?:-stable)?\\.zip)\"").Match(json);
                        if (match.Success && match.Groups.Count > 1)
                            downloadUrl = Regex.Unescape(match.Groups[1].Value);

                        return new Update
                        {
                            Version = vtag,
                            Changes = changes,
                            DownloadUrl = downloadUrl
                        };
                    }
                }

                return null;
            }
            catch (Exception ex)
            {
                MessageBox.Show(MainWindow.Instance,
                    "Failed to check update.\n" + ex.Message,
                    Program.Name, MessageBoxButton.OK, MessageBoxImage.Warning);
                return null;
            }
        }

        static async Task<string> DownloadString(string url)
        {