QtIF: Extract Update sequence

[Schenk]

@AndyS Hi Andy,

I want to stop my process, install/extract the content by the installer/updater and restart my process.

i have an installation with an already running process. The update should update this process, which have to be stopped before it can be updated. When i want to update my installation with the maintanance.exe the log says, that this process should be stopped first of all and then retry. My problem is wehre to put these "Stopping"-routine in the script.

I already tried:

function Component()
{}


Component.prototype.createOperations = function()
{
        component.createOperations();		
	// STOP HERE - DOES NOT WORK!	
}


Component.prototype.createOperationsForArchive = function(archive) {		
       // STOP HERE - DOES NOT WORK!
	component.addOperation("Extract", archive, "@TargetDir@/foo");
}

[Schenk]

Ok, issue solved. This behaviour is not described in the so-called documentation.
You have to overwrite the beginInstallation-Method and there you can do whatever you want to do before the extraction of the new content.

A good hint was the package installation script of the Qt Creator setup. There are serveral good hints which are not described in the api documentation.

[AndyS]

I am glad that you have been able to solve it. I agree that the documentation needs some updating and this is something I am hoping to improve on at some point over the next weeks or so.

[Schenk]

It is not the solution. At the beginning of the update mechinsm the beginInstasllation method is called, but no component-methods. The first method called is the UNDOEXECUTE routine.

[Schenk]

The createOperatiosn method is executed backwards and it is exeuted the UNDOEXECUTE routine. So, is there no way than put my "routine" in the UNDO ECUTE of the installer for the update?

[Ratzz]

@Schenk
have you tried setStopProcessForUpdateRequest(string process, boolean requested) ?
https://doc.qt.io/qtinstallerframework/scripting-component.html#setStopProcessForUpdateRequest-method
Edit:
U can also try to popup an messagebox so that user stops process using stopProcessesForUpdates
https://doc.qt.io/qtinstallerframework/noninteractive.html#message-boxes

[Schenk]

@Ratzz Hi, ratzz,

it is a windows service. Apart from stopping the service, maybe i want to save some files before uninstall/updater. But the updater execute the createOperations backwards and then the other stuff. So i need a entry point in the code, that i am able to save my files BEFORE the uninstalling.

[Ratzz]

@Schenk said in QtIF: Extract Update sequence:

i want to save some files

What sort of file? Why you want to save? currently where you save?

[Schenk]

@Ratzz Files like config-files. I want to save them, because the application should run like before with the same config-files etc.

[Schenk]

I tried to copy the files which i want to save before the uninstallation/update via UNDOEXECUTE, but there is no chance to save this files. They dissapear. Even if iy try the xcopy, xcopy etc., no file get saved.