how to determine the date a port is installed

[RW]

On Wed, 11 Jun 2008 10:31:08 +0300
Peter Pentchev <roam at ringlet.net> wrote:

> On Tue, Jun 10, 2008 at 10:41:25PM -0700, Jeremy Chadwick wrote:
> > On Wed, Jun 11, 2008 at 12:09:33AM -0500, Novembre wrote:
> > > Two questions:
> > > 1) Is it possible to determine the date a port/package is
> > > installed?
> > 
> > ls -ld /var/db/pkg/<port>, use the mtime of the directory.
> > 
> > > 2) How can I delete all the ports/packages installed after a
> > > certain date?
> > 
> > Use a combination of find with the -mtime flag, and pkg_delete.
> 
> Not really.  This is a bit dangerous.
> 
> The dangerous part is "the mtime of the directory".  It would be much
> better to use the mtime of the  file, since it never changes
> *after* the package has been installed.

+CONTENTS can change if you use a tool like portmaster or portupgrade 

If you have portupgrade installed, pkg_glob can list packages installed
before a specific date, so presumably pkg_deinstall can delete them
directly since it support package globs.