[RFC PATCH v2 3/4] dts: add doc generation

[Juraj Linkeš]

On Thu, May 4, 2023 at 2:45 PM Bruce Richardson
<bruce.richardson at intel.com> wrote:
>
> On Thu, May 04, 2023 at 02:37:48PM +0200, Juraj Linkeš wrote:
> > The tool used to generate developer docs is sphinx, which is already
> > used in DPDK. The configuration is kept the same to preserve the style.
> >
> > Sphinx generates the documentation from Python docstrings. The docstring
> > format most suitable for DTS seems to be the Google format [0] which
> > requires the sphinx.ext.napoleon extension.
> >
> > There are two requirements for building DTS docs:
> > * The same Python version as DTS or higher, because Sphinx import the
> >   code.
> > * Also the same Python packages as DTS, for the same reason.
> >
> > [0] https://google.github.io/styleguide/pyguide.html#38-comments-and-docstrings
> >
> > Signed-off-by: Juraj Linkeš <juraj.linkes at pantheon.tech>
> > ---
> >  doc/api/meson.build      |  1 +
> >  doc/guides/conf.py       | 22 ++++++++++++++----
> >  doc/guides/meson.build   |  1 +
> >  doc/guides/tools/dts.rst | 29 +++++++++++++++++++++++
> >  dts/doc/doc-index.rst    | 20 ++++++++++++++++
> >  dts/doc/meson.build      | 50 ++++++++++++++++++++++++++++++++++++++++
> >  dts/meson.build          | 16 +++++++++++++
> >  meson.build              |  1 +
> >  meson_options.txt        |  2 ++
> >  9 files changed, 137 insertions(+), 5 deletions(-)
> >  create mode 100644 dts/doc/doc-index.rst
> >  create mode 100644 dts/doc/meson.build
> >  create mode 100644 dts/meson.build
> >
>
> <snip>
>
> > diff --git a/dts/doc/meson.build b/dts/doc/meson.build
> > new file mode 100644
> > index 0000000000..db2bb0bed9
> > --- /dev/null
> > +++ b/dts/doc/meson.build
> > @@ -0,0 +1,50 @@
> > +# SPDX-License-Identifier: BSD-3-Clause
> > +# Copyright(c) 2023 PANTHEON.tech s.r.o.
> > +
> > +sphinx = find_program('sphinx-build', required: get_option('enable_dts_docs'))
> > +sphinx_apidoc = find_program('sphinx-apidoc', required: get_option('enable_dts_docs'))
> > +
> > +if sphinx.found() and sphinx_apidoc.found()
> > +endif
> > +
> > +dts_api_framework_dir = join_paths(dts_dir, 'framework')
> > +dts_api_build_dir = join_paths(doc_api_build_dir, 'dts')
> > +dts_api_src = custom_target('dts_api_src',
> > +        output: 'modules.rst',
> > +        command: ['SPHINX_APIDOC_OPTIONS=members,show-inheritance',
> > +            sphinx_apidoc, '--append-syspath', '--force',
> > +            '--module-first', '--separate',
> > +            '--doc-project', 'DTS', '-V', meson.project_version(),
> > +            '-o', dts_api_build_dir,
> > +            dts_api_framework_dir],
> > +        build_by_default: get_option('enable_dts_docs'))
> > +doc_targets += dts_api_src
> > +doc_target_names += 'DTS_API_sphinx_sources'
> > +
> > +cp = find_program('cp', required: get_option('enable_docs'))
>
> This should probably be "enable_dts_docs"
>

Right, I overlooked that.
What do you think of the implementation in general?