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Re: [Launchpad-users] Your top three wishes for Launchpad? (4.0 planning)



On Thu, 2009-09-03 at 08:44 +0100, Max Bowsher wrote:
> [regarding copying packages from Ubuntu to PPAs for backporting]
> 
> Fabio Pedretti wrote:
> >>> That would be
> >>> useful to easily backport packages from the development version to the
> >>> stable versions.
> 
> Max Bowsher wrote:
> >> *Please* do not use this for backporting packages.
> >>
> >> If you do copy source into a previous series, then the result will be
> >> packages built in the previous series environment but which have the
> >> same version number as the official packages.
> >>
> >> As a result, when someone installs the 'backported' packages and then
> >> later upgrades to the Ubuntu release they were backported from, those
> >> packages will *not* get upgraded, potentially leading to all kinds of
> >> bizarre and really difficult to debug problems.
> >>
> >> This is why any backport should always use a ~foo version suffix.
> 
> Fabio Pedretti wrote:
> > It would be nice if that could be automagically added when copying
> > packages to older series than that the package come from. Or is this
> > asking too much?
> 
> It's a fair bit more difficult than it sounds at first, because this
> implies unpacking the source package, prepending a new entry to
> debian/changelog, and repacking a new source package.
> 
> Though, implementing that would probably be enough to allow the Ubuntu
> official backporters to do their work with less intervention required
> from the archive admins, so it might be a worthwhile feature.

This sounds like it could be conveniently worked into the feature to
build packages from branches, as that has to do all that and more.




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