Re: Replacing glibc langpacks

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On Mon, May 27, 2019 at 5:36 AM Florian Weimer <fweimer@xxxxxxxxxx> wrote:
>
> I'm investigating whether it makes sense to switch to a scheme where the
> glibc locale data is built from source, during package installation,
> based on the langpack configuration system.  This is similar to what
> Debian does.
>
> The reason is that the compressed locale source code (without the
> charmaps, which are not strictly needed once we patch localedef) is
> smaller than the subset of locales of a langpack package which people
> actually.  For example, glibc-langpack-en on Fedora 29 is 6.7 MiB when
> installed, but en_US.utf8 is 2.9 MiB, and the locale sources are
> 3.4 MiB, so even the common case realizes a small saving.
>
> For the installer, the savings might be much larger.  If we can teach
> anaconda to generate the appropriate locale only after the user has
> selected the language, then we no longer need the full locale archive in
> the installation image (and in RAM).
>

I'm generally opposed to this because it introduces a scriptlet
requirement fairly early on in the system and I don't consider it to
be significant enough. If we wanted to have savings here, we should
look at encoding finer-grained locale attributes to the files in the
package file list so that rpm locale filters can strip them.

Even without this, I don't think the savings are worth it as you propose.


-- 
真実はいつも一つ!/ Always, there's only one truth!
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