[Piuparts-devel] changed severity

[Andreas Beckmann]

On 2016-07-27 22:25, Daniel Pocock wrote:
>> So what you are trying to do is to
>> a) rename a conffile and
> 
> They are copied, not renamed

> The original conffiles remain associated with the freeradius-client
> package and when nothing else on the system depends on freeradius-client
> any more, those conffiles can be removed with it.
> 
>> b) change its ownership to a different package
>> at the same time. That is unfortunately not well supported by the
>> current tools (e.g. dpkg-maintscript-helper).

> The radcli package keeps its conffiles in /etc/radcli

Well, the "effective" conffile (which the admin should edit) changes its
name (and owning package).


This looks like you would want this:

preinst:
  if this is a new install
    and $oldconffile exists
    and $oldconffile has been modified locally (i.e. does not match the
checksum recorded by dpkg)
  then
    place a copy of it as $newconffile.migrated
  fi

postinst:
  if $newconffile.migrated exists
  then
    mv $newconffile $newconffile.dpkg-new
    mv $newconffile.migrated $newconffile
    echo "migrated $oldconffile to $newconffile"
  fi

whatever-mainterner-script-handles-abort-install:
  remove $newconffile.migrated


This will avoid the conffile prompt if $oldconffile was pristine
(by not migrating it)
and in the other cases this will effectively postpone the conffile
prompt to the next upgrade of $newpkg which comes with a different
version of $newconffile.
This would behave similarly to dpkg-maintscript-helper mv_conffile.


Andreas