2 # -*- Mode: python; coding: utf-8; indent-tabs-mode: nil -*- */
3 # SPDX-License-Identifier: LGPL-2.1+
8 from xml_helper import xml_parse, xml_print, tree
9 from copy import deepcopy
12 <refentry id="elogind.directives" conditional="HAVE_PYTHON">
15 <title>elogind.directives</title>
16 <productname>elogind</productname>
20 <refentrytitle>elogind.directives</refentrytitle>
21 <manvolnum>7</manvolnum>
25 <refname>elogind.directives</refname>
26 <refpurpose>Index of configuration directives</refpurpose>
30 <title>Unit directives</title>
32 <para>Directives for configuring units, used in unit
35 <variablelist id='unit-directives' />
39 <title>Options on the kernel command line</title>
41 <para>Kernel boot options for configuring the behaviour of the
42 elogind process.</para>
44 <variablelist id='kernel-commandline-options' />
48 <title>Environment variables</title>
50 <para>Environment variables understood by the elogind
51 manager and other programs.</para>
53 <variablelist id='environment-variables' />
57 <title>UDEV directives</title>
59 <para>Directives for configuring elogind units through the
62 <variablelist id='udev-directives' />
66 <title>Network directives</title>
68 <para>Directives for configuring network links through the
69 net-setup-link udev builtin and networks through
70 elogind-networkd.</para>
72 <variablelist id='network-directives' />
76 <title>Journal fields</title>
78 <para>Fields in the journal events with a well known meaning.</para>
80 <variablelist id='journal-directives' />
84 <title>PAM configuration directives</title>
86 <para>Directives for configuring PAM behaviour.</para>
88 <variablelist id='pam-directives' />
92 <title><filename>/etc/crypttab</filename> and
93 <filename>/etc/fstab</filename> options</title>
95 <para>Options which influence mounted filesystems and
96 encrypted volumes.</para>
98 <variablelist id='fstab-options' />
102 <title>System manager directives</title>
104 <para>Directives for configuring the behaviour of the
105 elogind process.</para>
107 <variablelist id='elogind-directives' />
111 <title>command line options</title>
113 <para>Command-line options accepted by programs in the
114 elogind suite.</para>
116 <variablelist id='options' />
120 <title>Constants</title>
122 <para>Various constant used and/or defined by elogind.</para>
124 <variablelist id='constants' />
128 <title>Miscellaneous options and directives</title>
130 <para>Other configuration elements which don't fit in
131 any of the above groups.</para>
133 <variablelist id='miscellaneous' />
137 <title>Files and directories</title>
139 <para>Paths and file names referred to in the
140 documentation.</para>
142 <variablelist id='filenames' />
146 <title>Colophon</title>
147 <para id='colophon' />
153 This index contains {count} entries in {sections} sections,
154 referring to {pages} individual manual pages.
157 def _extract_directives(directive_groups, formatting, page):
159 section = t.find('./refmeta/manvolnum').text
160 pagename = t.find('./refmeta/refentrytitle').text
162 storopt = directive_groups['options']
163 for variablelist in t.iterfind('.//variablelist'):
164 klass = variablelist.attrib.get('class')
165 storvar = directive_groups[klass or 'miscellaneous']
166 # <option>s go in OPTIONS, unless class is specified
167 for xpath, stor in (('./varlistentry/term/varname', storvar),
168 ('./varlistentry/term/option',
169 storvar if klass else storopt)):
170 for name in variablelist.iterfind(xpath):
171 text = re.sub(r'([= ]).*', r'\1', name.text).rstrip()
172 stor[text].append((pagename, section))
173 if text not in formatting:
174 # use element as formatted display
175 if name.text[-1] in '= ':
180 formatting[text] = name
182 storfile = directive_groups['filenames']
183 for xpath, absolute_only in (('.//refsynopsisdiv//filename', False),
184 ('.//refsynopsisdiv//command', False),
185 ('.//filename', True)):
186 for name in t.iterfind(xpath):
187 if absolute_only and not (name.text and name.text.startswith('/')):
189 if name.attrib.get('noindex'):
193 if name.text.endswith('*'):
194 name.text = name.text[:-1]
195 if not name.text.startswith('.'):
196 text = name.text.partition(' ')[0]
197 if text != name.text:
200 if text.endswith('/'):
202 storfile[text].append((pagename, section))
203 if text not in formatting:
204 # use element as formatted display
205 formatting[text] = name
207 text = ' '.join(name.itertext())
208 storfile[text].append((pagename, section))
209 formatting[text] = name
211 storfile = directive_groups['constants']
212 for name in t.iterfind('.//constant'):
213 if name.attrib.get('noindex'):
216 if name.text.startswith('('): # a cast, strip it
217 name.text = name.text.partition(' ')[2]
218 storfile[name.text].append((pagename, section))
219 formatting[name.text] = name
221 def _make_section(template, name, directives, formatting):
222 varlist = template.find(".//*[@id='{}']".format(name))
223 for varname, manpages in sorted(directives.items()):
224 entry = tree.SubElement(varlist, 'varlistentry')
225 term = tree.SubElement(entry, 'term')
226 display = deepcopy(formatting[varname])
229 para = tree.SubElement(tree.SubElement(entry, 'listitem'), 'para')
232 for manpage, manvolume in sorted(set(manpages)):
235 b = tree.SubElement(para, 'citerefentry')
236 c = tree.SubElement(b, 'refentrytitle')
238 c.attrib['target'] = varname
239 d = tree.SubElement(b, 'manvolnum')
243 def _make_colophon(template, groups):
248 for pagelist in group.values():
249 pages |= set(pagelist)
251 para = template.find(".//para[@id='colophon']")
252 para.text = COLOPHON.format(count=count,
253 sections=len(groups),
256 def _make_page(template, directive_groups, formatting):
257 """Create an XML tree from directive_groups.
260 'class': {'variable': [('manpage', 'manvolume'), ...],
265 for name, directives in directive_groups.items():
266 _make_section(template, name, directives, formatting)
268 _make_colophon(template, directive_groups.values())
272 def make_page(*xml_files):
273 "Extract directives from xml_files and return XML index tree."
274 template = tree.fromstring(TEMPLATE)
275 names = [vl.get('id') for vl in template.iterfind('.//variablelist')]
276 directive_groups = {name:collections.defaultdict(list)
279 for page in xml_files:
281 _extract_directives(directive_groups, formatting, page)
283 raise ValueError("failed to process " + page)
285 return _make_page(template, directive_groups, formatting)
287 if __name__ == '__main__':
288 with open(sys.argv[1], 'wb') as f:
289 f.write(xml_print(make_page(*sys.argv[2:])))