Date: Tue, 22 Apr 2003 18:32:31 -0700 From: Kris Kennaway <kris@obsecurity.org> To: Sergey Matveychuk <sem@ciam.ru> Cc: Kris Kennaway <kris@obsecurity.org> Subject: Re: Recent bsd.port.mk changes Message-ID: <20030423013231.GA66663@rot13.obsecurity.org> In-Reply-To: <3EA5EA0D.8070500@ciam.ru> References: <000501c3074c$e5c2be80$0a2da8c0@sem> <20030421210257.GA58574@rot13.obsecurity.org> <3EA48724.3080602@ciam.ru> <20030422001917.GA60080@rot13.obsecurity.org> <3EA53B4A.4030700@ciam.ru> <20030422193337.GA64963@rot13.obsecurity.org> <3EA5EA0D.8070500@ciam.ru>
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On Wed, Apr 23, 2003 at 05:19:09AM +0400, Sergey Matveychuk wrote:
> Kris Kennaway wrote:
> >features enabled ("foo-1.2.3" vs "foo-esound-1.2.3" etc.) This is why
> >I suggested that comparing the installation prefix and pkg-plist for
> >overlap with ports that have the same origin may be the only way to do
> >this reliably.
>=20
> I don't know how to compare pkg-plist files? How to make decision a port=
=20
> is older version and not variant of current one? It must be some=20
> evristic method. Some files can be moved in other place, some files can=
=20
> be new, some files can be moved away in new version.
> In port's variant case path can be changed or file name can be changed=20
> (libsome.so and libsome_r.so).
You can extract the prefix from the installed package by grepping for
@cwd in +CONTENTS. Similarly you can extract the list of installed
files by doing grep -v ^@ +CONTENTS. For each package that has our
origin (or a previous origin as looked up in the MOVED file), do the
following: if the installed prefix =3D=3D $PREFIX and one or more of the
installed files matches a file in pkg-plist (checked using
e.g. comm(1)), then we are going to conflict and we should not
install. I can't immediately think of how to implement the installed
plist extraction without using a temporary file, but it should be
possible with some thought.
Kris
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