Re: GSoC 2020: make hangs when making fonts

[Jean Abou Samra]

Owen,

Le 01/07/2020 à 00:36, Owen Lamb a écrit :
> On Tue, Jun 30, 2020 at 3:04 PM Jean Abou Samra <jean@abou-samra.fr 
> <mailto:jean@abou-samra.fr>> wrote:
>
>     So git clean didn't work? At this point, unfortunately I can't
>     help much--my
>     previous message was merely a shot in the dark but I understand
>     almost nothing
>     about fonts. Also, I'll be going on vacation pretty soon, so I
>     won't have time
>     to setup LilyDev, sorry…
>
>
> No worries. Have a great vacation!
Thanks!
>     That said, if CI itself started to fail recently, there must be
>     something broken
>     in the sources, possibly in relation with a specific environement.
>     Could you try
>     to compile after a git checkout release/2.18.0-1? If that
>     succeeds, you want to
>     go through a git bisect to find the culprit.
>
> That's a good idea--I'll try that next.
>
>     PS: I guess
>     https://gitlab.com/lilypond/lilypond/-/merge_requests/205is going
>     to help in debugging.
>
> This page is all Greek to me at the moment, but I'll look into it. Thanks!

Quick explanation: among other things, this merge request introduces a 
--ci flag in autogen.sh,
which helps testing just as CI does, with the same compilersettings.

Compiling this branch with --ci yields fine resultsfor me. So, the issue is
very likely related to your environment. CI runs ina docker container that
is either Ubuntu 16 or 18. These ship with olderversions of FontForge than
my Ubuntu 20, as you'll notice in
https://packages.ubuntu.com/search?keywords=fontforge&searchon=names&suite=bionic&section=all
(the version there being 20170731 while mine is 20190801).

Paging Jonas: could we perhaps add a Docker file for Ubuntu 20.04?

I hope your problem can be solved by installing a newer FontForge, which 
can be done
from Ubuntu's newest apt repositories. To do that, I guess (guess!) you 
should add the
following line to /etc/apt/sources.list:

deb http://cz.archive.ubuntu.com/ubuntu focal main universe

(view the full list of mirrors at 
https://packages.ubuntu.com/focal/amd64/fontforge/download).

Then,

sudo apt update
sudo apt-get -t focal install fontforge

could do the trick, though I'm really unsure with apt usage.

Best regards,
Jean