[Python-apps-team] Bug#691704: Bug#691704: /usr/share/doc/cython-dbg is empty on upgrade

[Yaroslav Halchenko]

Hi Andreas,

On Sat, 11 May 2013, Andreas Beckmann wrote:
> > cython (0.19+git51-g3078752-1) unstable; urgency=low
> >   * debian/rules
> >     - use explicit --link-doc for dh_installdocs to get correct
> >       links for doc/ directories of -dbg packages

> That does not fix the upgrade issue.

Rright -- and thanks for all the details -- now I remember that I ran
into this issue before but forgot the details.
Similarly I forgot, if every knew, the actual reason for the behavior stated
in the policy you kindly referred to:

" A directory will never be replaced by a symbolic link to a directory or
vice versa; instead, the existing state (symlink or not) will be left
alone and dpkg will follow the symlink if there is one."

I wonder what was the reason for this decision -- do you have any
reference or explanation/example?  on a quick look everyone seems
just to state that this is intentional but no good example/reason is
given.  technically it sounds to be feasible (just move directory into a
'backup' location, and then clean that one up in step 11 -- just as with
files), so there must be some gotcha.

Thanks in advance!

-- 
Yaroslav O. Halchenko, Ph.D.
http://neuro.debian.net http://www.pymvpa.org http://www.fail2ban.org
Senior Research Associate,     Psychological and Brain Sciences Dept.
Dartmouth College, 419 Moore Hall, Hinman Box 6207, Hanover, NH 03755
Phone: +1 (603) 646-9834                       Fax: +1 (603) 646-1419
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