On Wed, Oct 31, 2012 at 03:21:56PM -0400, Ben Rosser wrote: > On Wed, Oct 31, 2012 at 1:33 PM, Reindl Harald <h.reindl@xxxxxxxxxxxxx> wrote: > > > this is WRONG behavior > > any upstream-script the next years will use #!/bin/perl and > it would be idiotic to write patches for every application > only becasue fdora decided to make UsrMove > > UsrMove is a distribution-feature > and so the distribution has to care that basic parts > of the ditsribution do the rights things CENTRALIZED > > > > I'm not a Perl programmer... but shouldn't scripts be using something like #!/ > usr/bin/env perl rather than hardcoding #!/bin/perl anyway? That's the way > Python scripts have been written for years (#!/usr/bin/env python), long before > UsrMove. > env comes with its own problems. The one I'm most familiar with is when a site has its own, somewhat incompatible version of the interpreter installed. For instance, if Fedora ships with python == python-2.7 and the site installs /usr?local/bin/python and places that first in the PATH. Sudddenlyy rpm managed packages that use /usr/bin/env python will break. This can also come into play with versions that are closer in nature. For instance, we might install python-2.7.1 via rpm but the site might install python-2.7.2 locally. If the scripts that are installed require python modules, the rpm dependencies will make sure those deps are installed for the system python-2.7.1. But they won't be installed for the local python-2.7.2 version. If that comes first in the PATH and a script uses /usr/bin/env python, this will break as well. -Toshio
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