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From: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
To: Linux Doc Mailing List <linux-doc@vger.kernel.org>,
	Jonathan Corbet <corbet@lwn.net>
Cc: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>,
	"Akira Yokosawa" <akiyks@gmail.com>,
	"Breno Leitao" <leitao@debian.org>,
	"David S. Miller" <davem@davemloft.net>,
	"Donald Hunter" <donald.hunter@gmail.com>,
	"Eric Dumazet" <edumazet@google.com>,
	"Ignacio Encinas Rubio" <ignacio@iencinas.com>,
	"Jan Stancek" <jstancek@redhat.com>,
	"Marco Elver" <elver@google.com>,
	"Mauro Carvalho Chehab" <mchehab+huawei@kernel.org>,
	"Paolo Abeni" <pabeni@redhat.com>,
	"Ruben Wauters" <rubenru09@aol.com>,
	"Shuah Khan" <skhan@linuxfoundation.org>,
	joel@joelfernandes.org, linux-kernel-mentees@lists.linux.dev,
	linux-kernel@vger.kernel.org, lkmm@lists.linux.dev,
	netdev@vger.kernel.org, peterz@infradead.org,
	stern@rowland.harvard.edu
Subject: [PATCH v7 07/17] docs: sphinx: add a parser for yaml files for Netlink specs
Date: Thu, 19 Jun 2025 08:49:00 +0200	[thread overview]
Message-ID: <79fd88d84e63351d1156a343d697d9bbca8159c5.1750315578.git.mchehab+huawei@kernel.org> (raw)
In-Reply-To: <cover.1750315578.git.mchehab+huawei@kernel.org>

Add a simple sphinx.Parser to handle yaml files and add the
the code to handle Netlink specs. All other yaml files are
ignored.

The code was written in a way that parsing yaml for different
subsystems and even for different parts of Netlink are easy.

All it takes to have a different parser is to add an
import line similar to:

	from netlink_yml_parser import YnlDocGenerator

adding the corresponding parser somewhere at the extension:

	netlink_parser = YnlDocGenerator()

And then add a logic inside parse() to handle different
doc outputs, depending on the file location, similar to:

        if "/netlink/specs/" in fname:
            msg = self.netlink_parser.parse_yaml_file(fname)

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
---
 Documentation/sphinx/parser_yaml.py | 76 +++++++++++++++++++++++++++++
 1 file changed, 76 insertions(+)
 create mode 100755 Documentation/sphinx/parser_yaml.py

diff --git a/Documentation/sphinx/parser_yaml.py b/Documentation/sphinx/parser_yaml.py
new file mode 100755
index 000000000000..635945e1c5ba
--- /dev/null
+++ b/Documentation/sphinx/parser_yaml.py
@@ -0,0 +1,76 @@
+"""
+Sphinx extension for processing YAML files
+"""
+
+import os
+import re
+import sys
+
+from pprint import pformat
+
+from docutils.parsers.rst import Parser as RSTParser
+from docutils.statemachine import ViewList
+
+from sphinx.util import logging
+from sphinx.parsers import Parser
+
+srctree = os.path.abspath(os.environ["srctree"])
+sys.path.insert(0, os.path.join(srctree, "tools/net/ynl/pyynl"))
+
+from netlink_yml_parser import YnlDocGenerator        # pylint: disable=C0413
+
+logger = logging.getLogger(__name__)
+
+class YamlParser(Parser):
+    """Custom parser for YAML files."""
+
+    # Need at least two elements on this set
+    supported = ('yaml', 'yml')
+
+    netlink_parser = YnlDocGenerator()
+
+    def do_parse(self, inputstring, document, msg):
+        """Parse YAML and generate a document tree."""
+
+        self.setup_parse(inputstring, document)
+
+        result = ViewList()
+
+        try:
+            # Parse message with RSTParser
+            for i, line in enumerate(msg.split('\n')):
+                result.append(line, document.current_source, i)
+
+            rst_parser = RSTParser()
+            rst_parser.parse('\n'.join(result), document)
+
+        except Exception as e:
+            document.reporter.error("YAML parsing error: %s" % pformat(e))
+
+        self.finish_parse()
+
+    # Overrides docutils.parsers.Parser. See sphinx.parsers.RSTParser
+    def parse(self, inputstring, document):
+        """Check if a YAML is meant to be parsed."""
+
+        fname = document.current_source
+
+        # Handle netlink yaml specs
+        if "/netlink/specs/" in fname:
+            msg = self.netlink_parser.parse_yaml_file(fname)
+            self.do_parse(inputstring, document, msg)
+
+        # All other yaml files are ignored
+
+def setup(app):
+    """Setup function for the Sphinx extension."""
+
+    # Add YAML parser
+    app.add_source_parser(YamlParser)
+    app.add_source_suffix('.yaml', 'yaml')
+
+    return {
+        'version': '1.0',
+        'parallel_read_safe': True,
+        'parallel_write_safe': True,
+    }
-- 
2.49.0


  parent reply	other threads:[~2025-06-19  6:50 UTC|newest]

Thread overview: 26+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-06-19  6:48 [PATCH v7 00/17] Don't generate netlink .rst files inside $(srctree) Mauro Carvalho Chehab
2025-06-19  6:48 ` [PATCH v7 01/17] docs: conf.py: properly handle include and exclude patterns Mauro Carvalho Chehab
2025-06-19  6:48 ` [PATCH v7 02/17] docs: Makefile: disable check rules on make cleandocs Mauro Carvalho Chehab
2025-06-19  6:48 ` [PATCH v7 03/17] docs: netlink: netlink-raw.rst: use :ref: instead of :doc: Mauro Carvalho Chehab
2025-06-19  8:57   ` Donald Hunter
2025-06-19  6:48 ` [PATCH v7 04/17] tools: ynl_gen_rst.py: Split library from command line tool Mauro Carvalho Chehab
2025-06-19 12:01   ` Donald Hunter
2025-06-20 10:58     ` Mauro Carvalho Chehab
2025-06-19  6:48 ` [PATCH v7 05/17] docs: netlink: index.rst: add a netlink index file Mauro Carvalho Chehab
2025-06-19  6:48 ` [PATCH v7 06/17] tools: ynl_gen_rst.py: cleanup coding style Mauro Carvalho Chehab
2025-06-19 12:04   ` Donald Hunter
2025-06-19  6:49 ` Mauro Carvalho Chehab [this message]
2025-06-19 12:08   ` [PATCH v7 07/17] docs: sphinx: add a parser for yaml files for Netlink specs Donald Hunter
2025-06-19  6:49 ` [PATCH v7 08/17] docs: use parser_yaml extension to handle " Mauro Carvalho Chehab
2025-06-19  6:49 ` [PATCH v7 09/17] docs: uapi: netlink: update netlink specs link Mauro Carvalho Chehab
2025-06-19  6:49 ` [PATCH v7 10/17] tools: ynl_gen_rst.py: drop support for generating index files Mauro Carvalho Chehab
2025-06-19  6:49 ` [PATCH v7 11/17] docs: netlink: remove obsolete .gitignore from unused directory Mauro Carvalho Chehab
2025-06-19  6:49 ` [PATCH v7 12/17] MAINTAINERS: add netlink_yml_parser.py to linux-doc Mauro Carvalho Chehab
2025-06-19 12:10   ` Donald Hunter
2025-06-19  6:49 ` [PATCH v7 13/17] tools: netlink_yml_parser.py: add line numbers to parsed data Mauro Carvalho Chehab
2025-06-19  6:49 ` [PATCH v7 14/17] docs: parser_yaml.py: add support for line numbers from the parser Mauro Carvalho Chehab
2025-06-19  6:49 ` [PATCH v7 15/17] docs: sphinx: add a file with the requirements for lowest version Mauro Carvalho Chehab
2025-06-19  6:49 ` [PATCH v7 16/17] docs: conf.py: several coding style fixes Mauro Carvalho Chehab
2025-06-19  6:49 ` [PATCH v7 17/17] docs: conf.py: Check Sphinx and docutils version Mauro Carvalho Chehab
2025-06-19  8:29 ` [PATCH v7 00/17] Don't generate netlink .rst files inside $(srctree) Donald Hunter
2025-06-20 10:33   ` Mauro Carvalho Chehab

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