How to best run a script post installation _and_ deinstallation?

[Chris Rees]

On 13 Sep 2011 01:36, "Gerald Pfeifer" <gerald at pfeifer.com> wrote:
>
> On Sun, 22 May 2011, Doug Barton wrote:
> > Will @unexec in pkg-plist do the job?
>
> On Mon, 23 May 2011, Wesley Shields wrote:
> > Are these what you are looking for:
> >
> > http://www.freebsd.org/doc/en/books/porters-handbook/pkg-install.html
> > http://www.freebsd.org/doc/en/books/porters-handbook/pkg-deinstall.html
>
> Yes and no (to both questions).
>
> I have been looking for a silver bullet that avoids having
>  (a) something in the post-install target plus an @exec and an @unexec
>      and thus redundancy, or
>  (b) two extra scripts and thus two extra files in the port.
>
> Alas, I failed at that, and Emanuel convinced me that apparently there
> is no way to avoid one of these two deaths.
>
> That looks like a nice project for someone to improve our general
> infrastructure along these lines.
>

Most people faced with this problem redefine PKGDEINSTALL to the location of
the pkg-install script.

Chris