Re: There is nothing to install
Re: There is nothing to install
- Subject: Re: There is nothing to install
- From: Iceberg-Dev <email@hidden>
- Date: Fri, 19 Dec 2008 23:06:12 +0100
On Dec 19, 2008, at 9:29 PM, Everette Clemmer wrote:
NVM, found the answer at http://lists.apple.com/archives/installer-
dev/2006/Feb/msg00003.html
My next question is how to prevent Installer.app from doing a
destructive copy when attempting to upgrade an already installed
application. As things stand now, my installed app is completely
wiped out when I run my patch.
4 solutions:
- if you want to provide just the difference between the 2 versions:
- if you're using the FLAT package format, you can create a patch
package.
- if you're not using the FLAT package, use a unique ID and name for
your installation package.
- if you want to play with undocumented feature, there are options
in the old format to tell Installer.app not to remove files if they
are no more in the newer version of a package. You would need to look
into the archive of the mailing list. I maybe something like a
hintlist or something.
- if you don't mind providing all the files in the update package:
- just keep the same ID and name for the package, increase the
version and let Installer.app do its magic.
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