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.
35 from docutils import nodes, statemachine
36 from docutils.statemachine import ViewList
37 from docutils.parsers.rst import directives
38 from sphinx.util.compat import Directive
40 class KernelDocDirective(Directive):
41 """Extract kernel-doc comments from the specified file"""
43 optional_arguments = 4
45 'doc': directives.unchanged_required,
46 'functions': directives.unchanged_required,
47 'export': directives.flag,
48 'internal': directives.flag,
53 env = self.state.document.settings.env
54 cmd = [env.config.kerneldoc_bin, '-rst', '-enable-lineno']
56 filename = env.config.kerneldoc_srctree + '/' + self.arguments[0]
58 # Tell sphinx of the dependency
59 env.note_dependency(os.path.abspath(filename))
61 tab_width = self.options.get('tab-width', self.state.document.settings.tab_width)
64 # FIXME: make this nicer and more robust against errors
65 if 'export' in self.options:
67 elif 'internal' in self.options:
69 elif 'doc' in self.options:
70 cmd += ['-function', str(self.options.get('doc'))]
71 elif 'functions' in self.options:
72 for f in str(self.options.get('functions')).split(' '):
73 cmd += ['-function', f]
78 env.app.verbose('calling kernel-doc \'%s\'' % (" ".join(cmd)))
80 p = subprocess.Popen(cmd, stdout=subprocess.PIPE, stderr=subprocess.PIPE, universal_newlines=True)
81 out, err = p.communicate()
83 # python2 needs conversion to unicode.
84 # python3 with universal_newlines=True returns strings.
85 if sys.version_info.major < 3:
86 out, err = unicode(out, 'utf-8'), unicode(err, 'utf-8')
91 env.app.warn('kernel-doc \'%s\' failed with return code %d' % (" ".join(cmd), p.returncode))
92 return [nodes.error(None, nodes.paragraph(text = "kernel-doc missing"))]
93 elif env.config.kerneldoc_verbosity > 0:
96 lines = statemachine.string2lines(out, tab_width, convert_whitespace=True)
100 line_regex = re.compile("^#define LINENO ([0-9]+)$")
102 match = line_regex.search(line)
104 # sphinx counts lines from 0
105 lineoffset = int(match.group(1)) - 1
106 # we must eat our comments since the upset the markup
108 result.append(line, source, lineoffset)
111 node = nodes.section()
112 node.document = self.state.document
113 self.state.nested_parse(result, self.content_offset, node)
117 except Exception as e:
118 env.app.warn('kernel-doc \'%s\' processing failed with: %s' %
119 (" ".join(cmd), str(e)))
120 return [nodes.error(None, nodes.paragraph(text = "kernel-doc missing"))]
123 app.add_config_value('kerneldoc_bin', None, 'env')
124 app.add_config_value('kerneldoc_srctree', None, 'env')
125 app.add_config_value('kerneldoc_verbosity', 1, 'env')
127 app.add_directive('kernel-doc', KernelDocDirective)