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Re: packagemaker install, running instances
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Re: packagemaker install, running instances

  • Subject: Re: packagemaker install, running instances
  • From: Bill Coderre <email@hidden>
  • Date: Tue, 30 May 2006 10:38:31 -0700

On May 30, 2006, at 10:18 AM, Alex Sheh wrote:
Does the PackageMaker installer handle contention between a currently running program (which may be reading/writing to resources on disk) and the installer which needs to overwrite the program files (overwrite the same resources)? Or should I simply always terminate running instances with a preflight script, or is there some more standard way to handle this?

The way I do it is to detect the program running during InstallationCheck and put up an error asking the user to quit.

There was a lot of discussion about this, but in the end, it's simple and clear user interaction.

Note that software update does not run InstallationCheck, and preflight is not allowed to return an error. That's why the (ugly) dialog saying "Please Quit" with no way to abort the update. If we could avoid that situation, we would.

As for the first part of the question, I am not sure. I do know that we have to quit the app because most apps use Nibs, and most of them do not pre-load the Nibs, but do preload the binary. If the two mismatch, "hilarity" ensues. (ie. the "quit" menu item no longer works, etc.)
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 >packagemaker install, running instances (From: "Alex Sheh" <email@hidden>)

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