Bug#817977: firefox: Please add Conflicts & Provides for iceweasel

[Mike Hommey]

On Sun, Mar 13, 2016 at 11:25:35AM +0900, Mike Hommey wrote:
> On Sun, Mar 13, 2016 at 02:13:48AM +0100, Axel Beckert wrote:
> > Hi,
> > 
> > Patrick Winnertz wrote:
> > > please add Conflicts: Iceweasel and Provides: Iceweasel to firefox,
> > > as it is otherwise not possible to install the firefox package and
> > > to remove the iceweasel package without installing firefox-esr, too. 
> > 
> > I ran into this, too, when upgrading iceweasel (which pulled in
> > firefox-esr) and installing firefox in the same aptitude run:
> > 
> > Preparing to unpack .../firefox-esr_45.0esr-1_amd64.deb ...
> > Removing 'diversion of /usr/bin/firefox to /usr/bin/firefox.real by iceweasel'
> > dpkg-divert: error: rename involves overwriting '/usr/bin/firefox' with
> >   different file '/usr/bin/firefox.real', not allowed
> > dpkg: error processing archive /var/cache/apt/archives/firefox-esr_45.0esr-1_amd64.deb (--unpack):
> >  subprocess new pre-installation script returned error exit status 2
> > Selecting previously unselected package firefox-esr-l10n-de.
> 
> No matter how hard I try, I can't reproduce. I also don't understand how
> that can happen. But since neither of you are copy/pasting full apt
> logs, I cannot tell much. The only way I can imagine this happening is
> if iceweasel is not unpacked before firefox-esr. Interestingly,
> iceweasel unpacking before firefox-esr is related to bug 817908.

Now, come to think of it, maybe making firefox-esr conflict with
iceweasel (<< 45) would force iceweasel to be unpacked first.
Incidentally, this might be part of working around bug 817908 too.

Mike