Sunday, 10 September 2017

Re: Compressed apt index files by default for 18.04?

On Sun, Sep 10, 2017 at 10:01:27AM +0100, Colin Watson wrote:
> On Sat, Sep 09, 2017 at 04:41:27PM +0200, Julian Andres Klode wrote:
> > I'd like us to try out using LZ4 compressed index files in
> > /var/lib/apt/lists for 18.04, starting from the beginning
> > of the development period with apt 1.6~alpha1 (ASAP).
> >
> > This is done by swapping the default for Acquire::gzipIndexes
> > from false to true.
> >
> > On my (Debian) system, this compresses /var/lib/apt/lists
> > from 1.3 GB down to 241 MB, which is a lot of space.
> >
> > There are some packages broken with this, I just started
> > a mass bug filing in Debian for that purpose.
>
> Note that we'd need to get
> https://code.launchpad.net/~cjwatson/launchpad-buildd/apt-lists/+merge/286751
> reviewed and landed before doing this, or dep-wait analysis of failed
> builds will break.

I should mention that you don't need apt-helper, but can just pass
a file name to apt_pkg.TagFile and it handles decompression, starting
with libapt-pkg4.12 (which is about apt 1.0.9 I think?).

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