TweetDuck/Updates/UpdateInstaller.cs

using System;
using System.ComponentModel;
using System.Diagnostics;
using TweetDuck.Configuration;
using TweetLib.Core.Utils;

namespace TweetDuck.Updates{
    sealed class UpdateInstaller{
        public string Path { get; }

        public UpdateInstaller(string path){
            this.Path = path;
        }

        public bool Launch(){
            // ProgramPath has a trailing backslash
            string arguments = "/SP- /SILENT /FORCECLOSEAPPLICATIONS /UPDATEPATH=\"" + Program.ProgramPath + "\" /RUNARGS=\"" + Arguments.GetCurrentForInstallerCmd() + "\"" + (Program.IsPortable ? " /PORTABLE=1" : "");
            bool runElevated = !Program.IsPortable || !FileUtils.CheckFolderWritePermission(Program.ProgramPath);

            try{
                using(Process.Start(new ProcessStartInfo{
                    FileName = Path,
                    Arguments = arguments,
                    Verb = runElevated ? "runas" : string.Empty,
                    ErrorDialog = true
                })){
                    return true;
                }
            }catch(Win32Exception e) when (e.NativeErrorCode == 0x000004C7){ // operation canceled by the user
                return false;
            }catch(Exception e){
                Program.Reporter.HandleException("Update Installer Error", "Could not launch update installer.", true, e);
                return false;
            }
        }
    }
}