installation script breaks on msys2 installation

msys2 installation fails

hastebin dump: https://www.toptal.com/developers/hastebin/favazaxupo.bat

I thought it might be because of the file path having two slashes in it (see screenshot):

Why is there a double-slash in the path? I specifically left it off because I thought my initial path should have omitted the trailing \ for the sake of the script.

When I first tried to install with GHCup, the default path was "C:" and then I changed each entry to "C:\Program Files" When I ran GHCup again, the default path had changed to "C:\Program Files" . I noticed the double-slashes in the install and thought that might be the problem, so I removed them for each prompt. But the msys2 installation still tried to use the "C:\Program Files" path, which tells me it wasn't respecting the current value of the base path ("C:\Program Files") and was instead hard-coded to use whatever default is loaded into the program. ---The program must be recording the default path locally in a temporary file, and failing to update that file when it already exists, and it likely writes that file after failing to install. Bad code.