def run()

in sphinx/kerneldoc.py [0:0]

• 67 lines of code
• 20 McCabe index (conditional complexity)

    def run(self):
        env = self.state.document.settings.env
        cmd = [env.config.kerneldoc_bin, '-rst', '-enable-lineno']

	# Pass the version string to kernel-doc, as it needs to use a different
	# dialect, depending what the C domain supports for each specific
	# Sphinx versions
        cmd += ['-sphinx-version', sphinx.__version__]

        filename = env.config.kerneldoc_srctree + '/' + self.arguments[0]
        export_file_patterns = []

        # Tell sphinx of the dependency
        env.note_dependency(os.path.abspath(filename))

        tab_width = self.options.get('tab-width', self.state.document.settings.tab_width)

        # 'function' is an alias of 'identifiers'
        if 'functions' in self.options:
            self.options['identifiers'] = self.options.get('functions')

        # FIXME: make this nicer and more robust against errors
        if 'export' in self.options:
            cmd += ['-export']
            export_file_patterns = str(self.options.get('export')).split()
        elif 'internal' in self.options:
            cmd += ['-internal']
            export_file_patterns = str(self.options.get('internal')).split()
        elif 'doc' in self.options:
            cmd += ['-function', str(self.options.get('doc'))]
        elif 'identifiers' in self.options:
            identifiers = self.options.get('identifiers').split()
            if identifiers:
                for i in identifiers:
                    cmd += ['-function', i]
            else:
                cmd += ['-no-doc-sections']

        if 'no-identifiers' in self.options:
            no_identifiers = self.options.get('no-identifiers').split()
            if no_identifiers:
                for i in no_identifiers:
                    cmd += ['-nosymbol', i]

        for pattern in export_file_patterns:
            for f in glob.glob(env.config.kerneldoc_srctree + '/' + pattern):
                env.note_dependency(os.path.abspath(f))
                cmd += ['-export-file', f]

        cmd += [filename]

        try:
            kernellog.verbose(env.app,
                              'calling kernel-doc \'%s\'' % (" ".join(cmd)))

            p = subprocess.Popen(cmd, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
            out, err = p.communicate()

            out, err = codecs.decode(out, 'utf-8'), codecs.decode(err, 'utf-8')

            if p.returncode != 0:
                sys.stderr.write(err)

                kernellog.warn(env.app,
                               'kernel-doc \'%s\' failed with return code %d' % (" ".join(cmd), p.returncode))
                return [nodes.error(None, nodes.paragraph(text = "kernel-doc missing"))]
            elif env.config.kerneldoc_verbosity > 0:
                sys.stderr.write(err)

            lines = statemachine.string2lines(out, tab_width, convert_whitespace=True)
            result = ViewList()

            lineoffset = 0;
            line_regex = re.compile("^#define LINENO ([0-9]+)$")
            for line in lines:
                match = line_regex.search(line)
                if match:
                    # sphinx counts lines from 0
                    lineoffset = int(match.group(1)) - 1
                    # we must eat our comments since the upset the markup
                else:
                    doc = env.srcdir + "/" + env.docname + ":" + str(self.lineno)
                    result.append(line, doc + ": " + filename, lineoffset)
                    lineoffset += 1

            node = nodes.section()
            self.do_parse(result, node)

            return node.children

        except Exception as e:  # pylint: disable=W0703
            kernellog.warn(env.app, 'kernel-doc \'%s\' processing failed with: %s' %
                           (" ".join(cmd), str(e)))
            return [nodes.error(None, nodes.paragraph(text = "kernel-doc missing"))]