NSIS support about itch HOT 3 CLOSED

To install:

some-setup.exe /S /NCRC /D=C:\install_dir

To uninstall:

C:\install_dir\unins*.exe /S _?=C:\install_dir

NB:

• It seems uninstaller can have different names (uninstall.exe, uninstaller.exe)
• Omitting _? will prevent 'waiting for install to finish' as uninstaller will first copy itself somewhere else
• Specifying _? means the uninstaller will not be able to delete itself, still need to wipe install dir after uninstallation

from itch.

More research:

VLC installer doesn't respect /D flag (possibly has $InstallDir hardcoded in its script?). Pidgin installer does.

Just gonna give up on supporting games that hardcode $InstallDir for now.

Also, only common factor between uninstallers is the unins string in them. I've seen:

• uninstall.exe
• uninstaller.exe
• unins000.exe
• pidgin-uninst.exe

from itch.

Recent NSIS installers seem to always require administrator privileges (executable flag?), simply spawning them won't work.

Via https://github.com/itchio/elevate, these work fine (from bash):

./elevate.exe H:/pidgin-2.10.11.exe //S //NCRC /D=H:\\pidgin-install
 ./elevate.exe H:/pidgin-install/pidgin-uninst.exe //S _?=H:\\pidgin-install

(weird quotes/backquotes is because of MinGW path translation)

from itch.