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![Mike Rapoport](/assets/img/avatar_default.png)
When kernel-doc:: specified in .rst document without explicit directives, it outputs both comment and DOC: sections. If a DOC: section was explicitly included in the same document it will be duplicated. For example, the output generated for Documentation/core-api/idr.rst [1] has "IDA description" in the "IDA usage" section and in the middle of the API reference. This patch enables using "functions" directive without parameters to output all the documentation excluding DOC: sections. [1] https://www.kernel.org/doc/html/v4.17/core-api/idr.html Signed-off-by: Mike Rapoport <rppt@linux.vnet.ibm.com> Acked-by: Matthew Wilcox <willy@infradead.org> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
150 lines
5.7 KiB
Python
150 lines
5.7 KiB
Python
# coding=utf-8
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#
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# Copyright © 2016 Intel Corporation
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#
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# Permission is hereby granted, free of charge, to any person obtaining a
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# copy of this software and associated documentation files (the "Software"),
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# to deal in the Software without restriction, including without limitation
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# the rights to use, copy, modify, merge, publish, distribute, sublicense,
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# and/or sell copies of the Software, and to permit persons to whom the
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# Software is furnished to do so, subject to the following conditions:
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#
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# The above copyright notice and this permission notice (including the next
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# paragraph) shall be included in all copies or substantial portions of the
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# Software.
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#
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# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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# THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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# FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
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# IN THE SOFTWARE.
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#
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# Authors:
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# Jani Nikula <jani.nikula@intel.com>
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#
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# Please make sure this works on both python2 and python3.
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#
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import codecs
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import os
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import subprocess
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import sys
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import re
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import glob
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from docutils import nodes, statemachine
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from docutils.statemachine import ViewList
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from docutils.parsers.rst import directives, Directive
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from sphinx.ext.autodoc import AutodocReporter
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__version__ = '1.0'
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class KernelDocDirective(Directive):
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"""Extract kernel-doc comments from the specified file"""
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required_argument = 1
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optional_arguments = 4
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option_spec = {
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'doc': directives.unchanged_required,
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'functions': directives.unchanged,
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'export': directives.unchanged,
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'internal': directives.unchanged,
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}
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has_content = False
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def run(self):
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env = self.state.document.settings.env
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cmd = [env.config.kerneldoc_bin, '-rst', '-enable-lineno']
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filename = env.config.kerneldoc_srctree + '/' + self.arguments[0]
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export_file_patterns = []
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# Tell sphinx of the dependency
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env.note_dependency(os.path.abspath(filename))
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tab_width = self.options.get('tab-width', self.state.document.settings.tab_width)
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# FIXME: make this nicer and more robust against errors
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if 'export' in self.options:
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cmd += ['-export']
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export_file_patterns = str(self.options.get('export')).split()
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elif 'internal' in self.options:
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cmd += ['-internal']
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export_file_patterns = str(self.options.get('internal')).split()
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elif 'doc' in self.options:
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cmd += ['-function', str(self.options.get('doc'))]
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elif 'functions' in self.options:
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functions = self.options.get('functions').split()
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if functions:
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for f in functions:
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cmd += ['-function', f]
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else:
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cmd += ['-no-doc-sections']
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for pattern in export_file_patterns:
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for f in glob.glob(env.config.kerneldoc_srctree + '/' + pattern):
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env.note_dependency(os.path.abspath(f))
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cmd += ['-export-file', f]
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cmd += [filename]
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try:
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env.app.verbose('calling kernel-doc \'%s\'' % (" ".join(cmd)))
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p = subprocess.Popen(cmd, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
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out, err = p.communicate()
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out, err = codecs.decode(out, 'utf-8'), codecs.decode(err, 'utf-8')
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if p.returncode != 0:
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sys.stderr.write(err)
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env.app.warn('kernel-doc \'%s\' failed with return code %d' % (" ".join(cmd), p.returncode))
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return [nodes.error(None, nodes.paragraph(text = "kernel-doc missing"))]
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elif env.config.kerneldoc_verbosity > 0:
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sys.stderr.write(err)
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lines = statemachine.string2lines(out, tab_width, convert_whitespace=True)
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result = ViewList()
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lineoffset = 0;
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line_regex = re.compile("^#define LINENO ([0-9]+)$")
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for line in lines:
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match = line_regex.search(line)
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if match:
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# sphinx counts lines from 0
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lineoffset = int(match.group(1)) - 1
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# we must eat our comments since the upset the markup
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else:
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result.append(line, filename, lineoffset)
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lineoffset += 1
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node = nodes.section()
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buf = self.state.memo.title_styles, self.state.memo.section_level, self.state.memo.reporter
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self.state.memo.reporter = AutodocReporter(result, self.state.memo.reporter)
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self.state.memo.title_styles, self.state.memo.section_level = [], 0
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try:
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self.state.nested_parse(result, 0, node, match_titles=1)
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finally:
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self.state.memo.title_styles, self.state.memo.section_level, self.state.memo.reporter = buf
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return node.children
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except Exception as e: # pylint: disable=W0703
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env.app.warn('kernel-doc \'%s\' processing failed with: %s' %
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(" ".join(cmd), str(e)))
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return [nodes.error(None, nodes.paragraph(text = "kernel-doc missing"))]
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def setup(app):
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app.add_config_value('kerneldoc_bin', None, 'env')
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app.add_config_value('kerneldoc_srctree', None, 'env')
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app.add_config_value('kerneldoc_verbosity', 1, 'env')
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app.add_directive('kernel-doc', KernelDocDirective)
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return dict(
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version = __version__,
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parallel_read_safe = True,
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parallel_write_safe = True
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)
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