Bug#909155: apt-cache show multiple packages produces invalid output

[Julian Andres Klode <jak@debian.org>]

Control: tag -1 confirmed

On Wed, Sep 19, 2018 at 07:01:29AM +0200, Helmut Grohne wrote:
> Package: apt
> Version: 1.7.0~rc1
> Severity: serious
> File: /usr/bin/apt-cache
> 
> If you do a fresh sid debootstrap and then you can get the following
> interaction:
> 
> $ apt-cache show gcc-8-base=installed libgcc1=installed
> Package: gcc-8-base
[...] 
> Package: libgcc1
[...]
> Package: libx32gomp1-dbg
[...]

git bisect says

bf53f39c9a0221b670ffff74053ed36fc502d5a0 is the first bad commit                                                    
commit bf53f39c9a0221b670ffff74053ed36fc502d5a0                                                                    
Author: David Kalnischkies <david@kalnischkies.de>                                                        
Date:   Wed Apr 11 12:59:06 2018 +0200                                                                
                                                                                 
    Support --with-source in show & search commands                     


This changed how show worked, so it's a fairly isolated problem.
                                                                                   
> I'm filing this at severity serious, because I think it is the tip of an
> iceberg. The rc severity will prevent apt-listbugs users from installing
> to leave time for investigation. Please downgrade the severity once the
> problem is understood to be harmless.
> 

We've been running 1.7.y in Ubuntu with this commit since June, and
not noticed the problem. It's a problem strictly in show. That said,
I don't want that to be broken in testing either, so I'll leave it as RC.

-- 
debian developer - deb.li/jak | jak-linux.org - free software dev
ubuntu core developer                              i speak de, en