Launcher Update need some help

[anacinone]

When a launcher downloads an update, the new executable file overrides the old one.
If the update process is interrupted or fails, the launcher can be left with a corrupted executable, making it impossible to run.
We need a more reliable way to update itself like
-a file swap after the download.
-patch download and overrides everything.

[babanini95]

In my case, I make my own PatcherUpdater. I make it download all the new Launcher files in a temporary folder and cut it to my Launcher folder once the download is completed.

[kygodev]

Can confirm this bug. It was not present in older versions.

[emanzione]

I am thinking about the possible implications of a possible fix for this. The fix would be to download everything in a temporary folder, then replace all the files when we are sure that all the downloads have been completed successfully.

However, this requires more free disk space, precisely it requires twice the Launcher's size.

Not sure if this is a real problem, but I am thinking about implementing this behavior behind an opt-in flag in the LauncherUpdater.

What do you think?

[kygodev]

Would be nice i think. Because i dont know if its a game related problem or the patcher is corupting the files.