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



[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.

Max.

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