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Re: Hwo to debug and teacking builds?
From: |
ng0 |
Subject: |
Re: Hwo to debug and teacking builds? |
Date: |
Tue, 28 Mar 2017 16:07:54 +0000 |
Catonano transcribed 4.3K bytes:
> 2017-03-28 11:52 GMT+02:00 Ludovic Courtès <address@hidden>:
>
> > Howdy!
> >
> > Hartmut Goebel <address@hidden> skribis:
> >
> > > when defining a new package, I often find myself spending *a lot* of
> > > time debugging and tweaking the build. E.g. the if the Makefile needs to
> > > be modified, or some test-cases adjusted.
> > >
> > > How do I "get into" the build container, so I can debug, modify files,
> > > rebuild and run tests there - in a closed environment (nearly) like the
> > > build-daemon has?
> >
> > Most of the time, you don’t need to get into a container. In those
> > cases, it’s enough to do:
> >
> > guix build -K foo
> > # build fails…
> > cd /tmp/guix-build-foo.drv-0
> > source ./environment-variables
> > cd foo-1.2
> > …
> >
> > In some cases (for example when you have tests that fail in the build
> > environment but succeed once you’ve followed the steps above), you
> > really need a container similar to that created by guix-daemon. In that
> > case, do:
> >
> > guix build -K foo
> > # build fails…
> > cd /tmp/guix-build-foo.drv-0
> > guix environment -C foo --ad-hoc strace gdb
> > rm /bin/sh # to be really like in the guix-daemon environment
> > source ./environment-variables
> > cd foo-1.2
> > $GUIX_ENVIRONMENT/bin/strace -f -o log make check
> > …
> >
> > That would probably make a good “Debugging Build Failures” section.
> >
> >
> >
> This is important information and it's more detailed than what Pjotr wrote
> in his wrap up
>
> I'd do it myself but I don't know the first thing about the info system
>
> Which is the source file ?
doc/guix.texi
> How do I compile it ?
I never got anything else than html to build with make of guix, (make
doc/guix.html).. it's not super obvious. I know how texi2pdf etc works,
but this should at least be listed somewhere other than the Makefile.
> Which Emacs mode should I use ?
Re: Hwo to debug and teacking builds?, Hartmut Goebel, 2017/03/28