NSIS Uninstall Script?

[ghost]

Is it possible to have uninstallation instructions? How does that work? I need to delete a directory (roaming/App Name) on uninstallation.

[develar]

Fixed, will be deleted: RMDir /r "$APPDATA\${PRODUCT_NAME}"

[ghost]

And this will be done only on uninstall? Or also on reinstall (of the same version)

It should of course never happen when installing a newer version.

I suppose only on uninstall would be best.

[develar]

Yes, only on uninstall.

[artpol]

I'am testing on Windows 7 x86, nsis uninstaller doesn't remove "C:\Users\MyName\AppData\Roaming\My App Id" with Local storage and other files. Is it possible to remove it automatically on uninstallation?
Thanks for help!
Electron builder version - 7.17.0

[develar]

Yes, app data is not removed. Do you want compile flag (I.e. Produce installer that will delete by default) or runtime option (ask user)?

[artpol]

"Produce installer that will delete by default" - will be nice for my task. Because when user uninstall application, and install it again later, application can't understand that this is first run (to realise custom logic), because old data in place.

[develar]

@artpol What about auto updates?

[artpol]

During the auto-update, delete data should not be. We are talking only about the manual removal of the application, If it is possible to distinguish between them.

[develar]

@artpol I am not sure that your way is correct, but maybe it is ok and suitable for your application. Filed as #885