Installer.performOperation() to edit and delete a file in installed payload? QT IFW

dcouch

I am trying to edit an installed file during the InstallationFinished stage of my installer. The code I am trying to run looks like this:

if (installer.value("ExtrasDir") != installer.environmentVariable("PROGRAMDATA")) {

    if(installer.performOperation("AppendFile", "factoryExtrasLoc.txt", installer.value("ExtrasDir"))) {
        console.log("We have edited factory locations file.");
    }
} else {
    if(installer.performOperation("Delete", "factoryExtrasLoc.txt")) {
        console.log("We have deleted factory extras locations file.");
    }
}

This code runs when InstallationFinished signal is sent. When running with the -v option on the created installer I get this in the output:

[17473] perform operation: Delete
[17473] - arguments: factoryExtrasLoc.txt
[17473] Done
[17496] We have deleted factory extras locations file.

but the file is still in the directory of the installed payload. Likewise when I attempt the append file path the output looks like this:

[19136] perform operation: AppendFile
[19136] - arguments: factoryExtrasLoc.txt
[19136] Done
[19175] undo operation: AppendFile
[19175] - arguments: factoryExtrasLoc.txt
[19175] Done

but my appended text is not within the file. I need to run this operation after extract but it doesn't seem to do what the documentation says:

boolean performOperation(string name, stringlist arguments)

Instantly performs the operation name with arguments.

Am I using this method correctly? Is there a better option to edit a file installed by the installer or delete that file at installer finished?

dcouch

I solved this by placing the code in the correct location in my component script, which is the addOperations() section. I changed the installer.performOperation() to component.addElevatedOperation().

npcfm

To anyone who comes across this, you need to put the arguments into a list [arg1, arg2, ... argN].