1# coding=utf-8 2# 3# Copyright © 2016 Intel Corporation 4# 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: 11# 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 14# Software. 15# 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 22# IN THE SOFTWARE. 23# 24# Authors: 25# Jani Nikula <jani.nikula@intel.com> 26# 27# Please make sure this works on both python2 and python3. 28# 29 30import codecs 31import os 32import subprocess 33import sys 34import re 35import glob 36 37from docutils import nodes, statemachine 38from docutils.statemachine import ViewList 39from docutils.parsers.rst import directives, Directive 40import sphinx 41from sphinx.util.docutils import switch_source_input 42import kernellog 43 44__version__ = '1.0' 45 46class KernelDocDirective(Directive): 47 """Extract kernel-doc comments from the specified file""" 48 required_argument = 1 49 optional_arguments = 4 50 option_spec = { 51 'doc': directives.unchanged_required, 52 'export': directives.unchanged, 53 'internal': directives.unchanged, 54 'identifiers': directives.unchanged, 55 'no-identifiers': directives.unchanged, 56 'functions': directives.unchanged, 57 } 58 has_content = False 59 60 def run(self): 61 env = self.state.document.settings.env 62 cmd = [env.config.kerneldoc_bin, '-rst', '-enable-lineno'] 63 64 # Pass the version string to kernel-doc, as it needs to use a different 65 # dialect, depending what the C domain supports for each specific 66 # Sphinx versions 67 cmd += ['-sphinx-version', sphinx.__version__] 68 69 filename = env.config.kerneldoc_srctree + '/' + self.arguments[0] 70 export_file_patterns = [] 71 72 # Tell sphinx of the dependency 73 env.note_dependency(os.path.abspath(filename)) 74 75 tab_width = self.options.get('tab-width', self.state.document.settings.tab_width) 76 77 # 'function' is an alias of 'identifiers' 78 if 'functions' in self.options: 79 self.options['identifiers'] = self.options.get('functions') 80 81 # FIXME: make this nicer and more robust against errors 82 if 'export' in self.options: 83 cmd += ['-export'] 84 export_file_patterns = str(self.options.get('export')).split() 85 elif 'internal' in self.options: 86 cmd += ['-internal'] 87 export_file_patterns = str(self.options.get('internal')).split() 88 elif 'doc' in self.options: 89 cmd += ['-function', str(self.options.get('doc'))] 90 elif 'identifiers' in self.options: 91 identifiers = self.options.get('identifiers').split() 92 if identifiers: 93 for i in identifiers: 94 cmd += ['-function', i] 95 else: 96 cmd += ['-no-doc-sections'] 97 98 if 'no-identifiers' in self.options: 99 no_identifiers = self.options.get('no-identifiers').split() 100 if no_identifiers: 101 for i in no_identifiers: 102 cmd += ['-nosymbol', i] 103 104 for pattern in export_file_patterns: 105 for f in glob.glob(env.config.kerneldoc_srctree + '/' + pattern): 106 env.note_dependency(os.path.abspath(f)) 107 cmd += ['-export-file', f] 108 109 cmd += [filename] 110 111 try: 112 kernellog.verbose(env.app, 113 'calling kernel-doc \'%s\'' % (" ".join(cmd))) 114 115 p = subprocess.Popen(cmd, stdout=subprocess.PIPE, stderr=subprocess.PIPE) 116 out, err = p.communicate() 117 118 out, err = codecs.decode(out, 'utf-8'), codecs.decode(err, 'utf-8') 119 120 if p.returncode != 0: 121 sys.stderr.write(err) 122 123 kernellog.warn(env.app, 124 'kernel-doc \'%s\' failed with return code %d' % (" ".join(cmd), p.returncode)) 125 return [nodes.error(None, nodes.paragraph(text = "kernel-doc missing"))] 126 elif env.config.kerneldoc_verbosity > 0: 127 sys.stderr.write(err) 128 129 lines = statemachine.string2lines(out, tab_width, convert_whitespace=True) 130 result = ViewList() 131 132 lineoffset = 0; 133 line_regex = re.compile("^\.\. LINENO ([0-9]+)$") 134 for line in lines: 135 match = line_regex.search(line) 136 if match: 137 # sphinx counts lines from 0 138 lineoffset = int(match.group(1)) - 1 139 # we must eat our comments since the upset the markup 140 else: 141 doc = env.srcdir + "/" + env.docname + ":" + str(self.lineno) 142 result.append(line, doc + ": " + filename, lineoffset) 143 lineoffset += 1 144 145 node = nodes.section() 146 self.do_parse(result, node) 147 148 return node.children 149 150 except Exception as e: # pylint: disable=W0703 151 kernellog.warn(env.app, 'kernel-doc \'%s\' processing failed with: %s' % 152 (" ".join(cmd), str(e))) 153 return [nodes.error(None, nodes.paragraph(text = "kernel-doc missing"))] 154 155 def do_parse(self, result, node): 156 with switch_source_input(self.state, result): 157 self.state.nested_parse(result, 0, node, match_titles=1) 158 159def setup(app): 160 app.add_config_value('kerneldoc_bin', None, 'env') 161 app.add_config_value('kerneldoc_srctree', None, 'env') 162 app.add_config_value('kerneldoc_verbosity', 1, 'env') 163 164 app.add_directive('kernel-doc', KernelDocDirective) 165 166 return dict( 167 version = __version__, 168 parallel_read_safe = True, 169 parallel_write_safe = True 170 ) 171