3 # Copyright © 2016 Intel Corporation
5 # Permission is hereby granted, free of charge, to any person obtaining a
6 # copy of this software and associated documentation files (the "Software"),
7 # to deal in the Software without restriction, including without limitation
8 # the rights to use, copy, modify, merge, publish, distribute, sublicense,
9 # and/or sell copies of the Software, and to permit persons to whom the
10 # Software is furnished to do so, subject to the following conditions:
12 # The above copyright notice and this permission notice (including the next
13 # paragraph) shall be included in all copies or substantial portions of the
16 # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 # IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 # FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
19 # THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20 # LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
21 # FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
25 # Jani Nikula <jani.nikula@intel.com>
27 # Please make sure this works on both python2 and python3.
37 from docutils import nodes, statemachine
38 from docutils.statemachine import ViewList
39 from docutils.parsers.rst import directives, Directive
40 from sphinx.ext.autodoc import AutodocReporter
46 class KernelDocDirective(Directive):
47 """Extract kernel-doc comments from the specified file"""
49 optional_arguments = 4
51 'doc': directives.unchanged_required,
52 'functions': directives.unchanged_required,
53 'export': directives.unchanged,
54 'internal': directives.unchanged,
59 env = self.state.document.settings.env
60 cmd = [env.config.kerneldoc_bin, '-rst', '-enable-lineno']
62 filename = env.config.kerneldoc_srctree + '/' + self.arguments[0]
63 export_file_patterns = []
65 # Tell sphinx of the dependency
66 env.note_dependency(os.path.abspath(filename))
68 tab_width = self.options.get('tab-width', self.state.document.settings.tab_width)
70 # FIXME: make this nicer and more robust against errors
71 if 'export' in self.options:
73 export_file_patterns = str(self.options.get('export')).split()
74 elif 'internal' in self.options:
76 export_file_patterns = str(self.options.get('internal')).split()
77 elif 'doc' in self.options:
78 cmd += ['-function', str(self.options.get('doc'))]
79 elif 'functions' in self.options:
80 for f in str(self.options.get('functions')).split():
81 cmd += ['-function', f]
83 for pattern in export_file_patterns:
84 for f in glob.glob(env.config.kerneldoc_srctree + '/' + pattern):
85 env.note_dependency(os.path.abspath(f))
86 cmd += ['-export-file', f]
91 kernellog.verbose(env.app,
92 'calling kernel-doc \'%s\'' % (" ".join(cmd)))
94 p = subprocess.Popen(cmd, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
95 out, err = p.communicate()
97 out, err = codecs.decode(out, 'utf-8'), codecs.decode(err, 'utf-8')
100 sys.stderr.write(err)
102 kernellog.warn(env.app,
103 'kernel-doc \'%s\' failed with return code %d' % (" ".join(cmd), p.returncode))
104 return [nodes.error(None, nodes.paragraph(text = "kernel-doc missing"))]
105 elif env.config.kerneldoc_verbosity > 0:
106 sys.stderr.write(err)
108 lines = statemachine.string2lines(out, tab_width, convert_whitespace=True)
112 line_regex = re.compile("^#define LINENO ([0-9]+)$")
114 match = line_regex.search(line)
116 # sphinx counts lines from 0
117 lineoffset = int(match.group(1)) - 1
118 # we must eat our comments since the upset the markup
120 result.append(line, filename, lineoffset)
123 node = nodes.section()
124 buf = self.state.memo.title_styles, self.state.memo.section_level, self.state.memo.reporter
125 self.state.memo.reporter = AutodocReporter(result, self.state.memo.reporter)
126 self.state.memo.title_styles, self.state.memo.section_level = [], 0
128 self.state.nested_parse(result, 0, node, match_titles=1)
130 self.state.memo.title_styles, self.state.memo.section_level, self.state.memo.reporter = buf
134 except Exception as e: # pylint: disable=W0703
135 kernellog.warn(env.app, 'kernel-doc \'%s\' processing failed with: %s' %
136 (" ".join(cmd), str(e)))
137 return [nodes.error(None, nodes.paragraph(text = "kernel-doc missing"))]
140 app.add_config_value('kerneldoc_bin', None, 'env')
141 app.add_config_value('kerneldoc_srctree', None, 'env')
142 app.add_config_value('kerneldoc_verbosity', 1, 'env')
144 app.add_directive('kernel-doc', KernelDocDirective)
147 version = __version__,
148 parallel_read_safe = True,
149 parallel_write_safe = True