Bug#607799: sbcl: prompting due to modified conffiles which where not modified by the user

[Holger Levsen]

Package: sbcl,common-lisp-controller
Version: 1:1.0.40.0-2
Severity: serious
User: debian-qa at lists.debian.org
Usertags: piuparts piuparts.d.o

Hi, 

during a test with piuparts I noticed your package failed the piuparts upgrade 
test because dpkg detected a conffile as being modified and then prompted the 
user for an action. As there is no user input, this fails. But this is not 
the real problem, the real problem is that this prompt shows up in the first 
place, as there was nobody modifying this conffile at all, the package has 
just been installed and upgraded... 

This is a violation of policy 10.7.3, see 
http://www.debian.org/doc/debian-policy/ch-files.html#s10.7.3, which 
says "[These scripts handling conffiles] must not ask unnecessary questions 
(particularly during upgrades), and must otherwise be good citizens."

http://wiki.debian.org/DpkgConffileHandling should help with figuring out how 
to do this properly.

In http://lists.debian.org/debian-devel/2009/08/msg00675.html and followups it 
has been agreed that these bugs are to be filed with severity serious.

From the attached log (scroll to the bottom...):

  Setting up common-lisp-controller (7.4+nmu1) ...
  
  Configuration file `/etc/lisp-config.lisp'
   ==> File on system created by you or by a script.
   ==> File also in package provided by package maintainer.
     What would you like to do about it ?  Your options are:
      Y or I  : install the package maintainer's version
      N or O  : keep your currently-installed version
        D     : show the differences between the versions
        Z     : start a shell to examine the situation
   The default action is to keep your current version.
  *** lisp-config.lisp (Y/I/N/O/D/Z) [default=N] ? dpkg: error processing 
common-lisp-controller (--configure):
   EOF on stdin at conffile prompt
  dpkg: dependency problems prevent configuration of cl-asdf:
   cl-asdf depends on common-lisp-controller (>= 5.11); however:
    Package common-lisp-controller is not configured yet.
  dpkg: error processing cl-asdf (--configure):
   dependency problems - leaving unconfigured
  dpkg: dependency problems prevent configuration of sbcl:
   sbcl depends on common-lisp-controller (>= 5.11); however:
    Package common-lisp-controller is not configured yet.
  dpkg: error processing sbcl (--configure):
   dependency problems - leaving unconfigured
  Errors were encountered while processing:
   common-lisp-controller
   cl-asdf
   sbcl
  E: Sub-process /usr/bin/dpkg returned an error code (1)

I'm not really sure where this bug belongs too, though. common-lisp-controller 
alone upgrades successfully (see 
http://piuparts.debian.org/lenny2squeeze/source/c/common-lisp-controller.html) - 
also the version tested here (7.4+nmu1) does neither exist in squeeze nor 
sid. So I will issue a retest now too.


cheers,
	Holger
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