Bug#710500: Mention removal of libdigest-sha1-perl (covered by Digest::SHA in perl core)
Hi Bastien
On Sat, Jun 01, 2013 at 08:58:49AM +0200, Bastien ROUCARIES wrote:
> Le 31 mai 2013 14:39, "Salvatore Bonaccorso" <carnil@debian.org> a écrit :
> >
> > Package: release-notes
> > Tags: patch
> >
> > Hi Michael
> >
> > For reference, this is from http://bugs.debian.org/594273#54
> >
> > On Wed, May 29, 2013 at 03:11:06PM +0400, Michael Tokarev wrote:
> > > I'm not sure it is the right place - the RM bugreport -
> > > to add this information to.
> > >
> > > The thing is: finally, wheezy is out without this module.
> > > And it turns out that many 3rd-party code still uses the
> > > old name, despite the new name being in core perl for
> > > quite a while.
> > >
> > > In particular, when upgrading postgresql.org to wheezy,
> > > this change (removal of Digest::SHA1) was one of the main
> > > issues, significantly bigger than all other together.
> > > There were about 40 modules/programs which used the old
> > > name, which all, at the same time, stopped working, and
> > > it tool quite some efforts to figure it all out and to
> > > make it all work again.
> > >
> > > This pain could be reduced significantly by one of at least
> > > two ways:
> > >
> > > 1. By documenting the fact that this module is no longer
> > > available, somewhere in release notes or something like
> > > that. One of the issues faced was complete lack of any
> > > information about this, and even searching does not reveal
> > > anything useful easily (google finds oldstable package but
> > > not this removal request).
> >
> > This sounds like a good plan as libdigest-sha1-perl was nevertheless
> > still widely used. Attached is the patch proposed to apply to the
> > release-notes.
> >
> > > 2. By providing a compatibility layer, a tiny wrapper that
> > > just maps one namespace into another. I don't remember how
> > > this works in perl, but I guess it should be more or less
> > > trivial to do - so that old Digest::SHA1 name still works
> > > (maybe printing some deprecation warning or something).
> > >
> > > Either as an additional package (maybe using the same old
> > > name - libdigest-sha1-perl), or within core perl itself.
> >
> > IMO not the right approach as the aim was really to drop the use of
> > the obsoleted Digest::SHA1. But adding a release-notes entry is surely
> > more than worth.
>
> Please add a Lintian test or ask for a test for checking obsolete module
Already done since long time, before the removal of the package ;-).
See [1].
[1] http://bugs.debian.org/635441
Regards,
Salvatore
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