Re: [PATCH] docs: make sphinx-build be quiet by default

["Daniel P. Berrangé" <berrange@redhat.com>]

On Tue, Aug 10, 2021 at 12:06:47PM +0100, Peter Maydell wrote:
> On Tue, 10 Aug 2021 at 12:01, Daniel P. Berrangé <berrange@redhat.com> wrote:
> >
> > The sphinx-build is fairly verbose spitting out pages of output to the
> > console, which causes errors from other build commands to be scrolled
> > off the top of the terminal. This can leave the mistaken impression that
> > the build passed, when in fact there was a failure.
> >
> > Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
> > ---
> >  docs/meson.build | 7 ++++---
> >  1 file changed, 4 insertions(+), 3 deletions(-)
> >
> > diff --git a/docs/meson.build b/docs/meson.build
> > index 300b134329..29e119a3cc 100644
> > --- a/docs/meson.build
> > +++ b/docs/meson.build
> > @@ -21,7 +21,7 @@ if sphinx_build.found()
> >    run_command('mkdir', ['-p', tmpdir / 'sphinx'])
> >    run_command('touch', [tmpdir / 'sphinx/index.rst'])
> >    sphinx_build_test_out = run_command(SPHINX_ARGS + [
> > -    '-c', meson.current_source_dir(),
> > +    '-q', '-c', meson.current_source_dir(),
> >      '-b', 'html', tmpdir / 'sphinx',
> >      tmpdir / 'sphinx/out'])
> >    build_docs = (sphinx_build_test_out.returncode() == 0)
> > @@ -98,8 +98,9 @@ if build_docs
> >                                input: this_manual,
> >                                install: build_docs,
> >                                install_dir: install_dirs,
> > -                              command: [SPHINX_ARGS, '-b', 'man', '-d', private_dir,
> > -                                        input_dir, meson.current_build_dir()])
> > +                              command: [SPHINX_ARGS, '-q', '-b', 'man',
> > +                                        '-d', private_dir, input_dir
> > +                                        meson.current_build_dir()])
> >
> >    alias_target('sphinxdocs', sphinxdocs)
> >    alias_target('html', sphinxdocs)
> 
> Can we make meson pass '-q' only for non-verbose builds, so that
> if you pass make 'V=1' you still get the verbose sphinx output ?

The meson.build rules are turned into a ninja.build file at configure time.
IOW, at the time that conversion happens the V=1 arg isn't present, so we
can't conditionally pass '-q'. 

Regards,
Daniel
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