[Debian-med-packaging] Bug#839925: metaphlan2-data: postinst deletes shipped file: /var/lib/metaphlan2-data/markers.fasta

[Andreas Tille]

Hi Andreas,

On Thu, Oct 06, 2016 at 01:15:43PM +0200, Andreas Beckmann wrote:
> >From the attached log (scroll to the bottom...):
> 
> 28m45.5s ERROR: FAIL: debsums reports modifications inside the chroot:
>   debsums: missing file /var/lib/metaphlan2-data/markers.fasta (from metaphlan2-data package)
> 
> (If I run it manually and don't generate the stuff in postinst,
> the file stays installed).
> 
> 
> A gut feeling says that I would rather expect the shipped file in
> /usr/share and the generated files in /var/lib ...
> 
>   Wrote 304203219 bytes to primary EBWT file: /usr/share/metaphlan2/db_v20/mpa_v20_m200.rev.1.bt2
>   Wrote 177889404 bytes to secondary EBWT file: /usr/share/metaphlan2/db_v20/mpa_v20_m200.rev.2.bt2

I need to admit that it is intended to remove the file from users hard
disk since its only reason is to create the resulting files and will not
be needed afterwards any more.  Upstream actually ships the results and
to save bandwidth the smaller (and editable text) format fasta is used
for the Debian package.  This compromise was discussed on debian-devel.

It was not discussed whether it is OK to remove the intermediate format
afterwards.  Could you imagine a solution which does not bloat users
harddisk with unused files that does not raise a signal on Debian's QA
tools?

Kind regards

      Andreas.

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