Get the command in the rpm spec

[Greg Swift]

So... i think you need to step back and take a different approach.  RPM
shouldn't be leaving the old version the the filesystem regardless of what
you are doing.  Can you share your spec ?


On Tue, Nov 26, 2013 at 10:43 AM, Zheng, Wendy <wendy.zheng at emc.com> wrote:

> Hi all,
>
> Really sorry that I didn't receive the previous response and resend the
> question again.
>
> In this case, I'm maintaining a rpm package which installs the software
> with version number in its installation path. But now, the software owner
> doesn't want multiple versions be installed on the machine. Removing the
> version number in the installation path costs much effort, so I'm seeking
> for a solution to stop the user from using "rpm -i" command and suggest him
> to use "rpm -U" or "rpm -F" when he installs a new version to the machine
> with a older one installed.
>
> Then I try to use the $1 in %pre to distinguish between install and
> upgrade. But I notice it doesn't work as the doc described because we allow
> multiple version of software install here. For example, software 1.0 is
> installed on the machine under path /opt/software-1.0. Now the user tries
> to install software 2.0. Because the software will be installed under path
> /opt/software-2.0, the use can install 2.0 with "rpm -i", "rpm -U" and "rpm
> -F" command. In this case, the value of $1 is 2 no matter which command is
> used. So in this case, I need to know the exact command the user is using
> instead of how many instances are installed on the system.
>
> The description of $1 says that, when install, $1==1. This is true when
> only one version of software is allowed, because in this case, the second
> "rpm -i" command will fails to install because conflicts with previous
> version.
>
> Best Regards,
> Wendy
> ________________________________________
> From: Zheng, Wendy
> Sent: Tuesday, November 26, 2013 4:38 PM
> To: rpm-list at lists.rpm.org
> Subject: Get the command in the rpm spec
>
> Hi expertise,
>
> I’m a newbie in RPM. I’m working on creating a RPM package which only one
> instance is allowed to install on users machine. Then I need to check
> whether there is other version of the software installed on the machine
> before installation (I’m writing some scripts in %pre section). Then I use
> the $1 variable to check for it. But I notice that no matter the user is
> running “rpm -i” command or “rpm -U”, $1 will always return 2 (if there is
> already one instance installed on the machine). But in fact I only need to
> stop the user when he’s running “rpm -i”, because “rpm -U” will remove the
> old versions after install.
>   Then my question is, how can I know which command (“rpm -i” or “rpm -U”)
> the user is using in the rpm spec? Or do  you have any other suggestion to
> this solution?
>
> Best Regards,
> Wendy Zheng
>
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> Rpm-list at lists.rpm.org
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>
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