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.
36 from docutils import nodes, statemachine
37 from docutils.statemachine import ViewList
38 from docutils.parsers.rst import directives
39 from sphinx.util.compat import Directive
40 from sphinx.ext.autodoc import AutodocReporter
44 class KernelDocDirective(Directive):
45 """Extract kernel-doc comments from the specified file"""
47 optional_arguments = 4
49 'doc': directives.unchanged_required,
50 'functions': directives.unchanged_required,
51 'export': directives.unchanged,
52 'internal': directives.unchanged,
57 env = self.state.document.settings.env
58 cmd = [env.config.kerneldoc_bin, '-rst', '-enable-lineno']
60 filename = env.config.kerneldoc_srctree + '/' + self.arguments[0]
61 export_file_patterns = []
63 # Tell sphinx of the dependency
64 env.note_dependency(os.path.abspath(filename))
66 tab_width = self.options.get('tab-width', self.state.document.settings.tab_width)
68 # FIXME: make this nicer and more robust against errors
69 if 'export' in self.options:
71 export_file_patterns = str(self.options.get('export')).split()
72 elif 'internal' in self.options:
74 export_file_patterns = str(self.options.get('internal')).split()
75 elif 'doc' in self.options:
76 cmd += ['-function', str(self.options.get('doc'))]
77 elif 'functions' in self.options:
78 for f in str(self.options.get('functions')).split():
79 cmd += ['-function', f]
81 for pattern in export_file_patterns:
82 for f in glob.glob(env.config.kerneldoc_srctree + '/' + pattern):
83 env.note_dependency(os.path.abspath(f))
84 cmd += ['-export-file', f]
89 env.app.verbose('calling kernel-doc \'%s\'' % (" ".join(cmd)))
91 p = subprocess.Popen(cmd, stdout=subprocess.PIPE, stderr=subprocess.PIPE, universal_newlines=True)
92 out, err = p.communicate()
94 # python2 needs conversion to unicode.
95 # python3 with universal_newlines=True returns strings.
96 if sys.version_info.major < 3:
97 out, err = unicode(out, 'utf-8'), unicode(err, 'utf-8')
100 sys.stderr.write(err)
102 env.app.warn('kernel-doc \'%s\' failed with return code %d' % (" ".join(cmd), p.returncode))
103 return [nodes.error(None, nodes.paragraph(text = "kernel-doc missing"))]
104 elif env.config.kerneldoc_verbosity > 0:
105 sys.stderr.write(err)
107 lines = statemachine.string2lines(out, tab_width, convert_whitespace=True)
111 line_regex = re.compile("^#define LINENO ([0-9]+)$")
113 match = line_regex.search(line)
115 # sphinx counts lines from 0
116 lineoffset = int(match.group(1)) - 1
117 # we must eat our comments since the upset the markup
119 result.append(line, filename, lineoffset)
122 node = nodes.section()
123 buf = self.state.memo.title_styles, self.state.memo.section_level, self.state.memo.reporter
124 self.state.memo.reporter = AutodocReporter(result, self.state.memo.reporter)
125 self.state.memo.title_styles, self.state.memo.section_level = [], 0
127 self.state.nested_parse(result, 0, node, match_titles=1)
129 self.state.memo.title_styles, self.state.memo.section_level, self.state.memo.reporter = buf
133 except Exception as e: # pylint: disable=W0703
134 env.app.warn('kernel-doc \'%s\' processing failed with: %s' %
135 (" ".join(cmd), str(e)))
136 return [nodes.error(None, nodes.paragraph(text = "kernel-doc missing"))]
139 app.add_config_value('kerneldoc_bin', None, 'env')
140 app.add_config_value('kerneldoc_srctree', None, 'env')
141 app.add_config_value('kerneldoc_verbosity', 1, 'env')
143 app.add_directive('kernel-doc', KernelDocDirective)
146 version = __version__,
147 parallel_read_safe = True,
148 parallel_write_safe = True