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# -*- Mode: python; coding: utf-8; indent-tabs-mode: nil -*- */
#
# This file is part of systemd.
#
# Copyright 2012 Zbigniew Jędrzejewski-Szmek
#
# systemd is free software; you can redistribute it and/or modify it
# under the terms of the GNU Lesser General Public License as published by
# the Free Software Foundation; either version 2.1 of the License, or
# (at your option) any later version.
#
# systemd is distributed in the hope that it will be useful, but
# WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
# Lesser General Public License for more details.
#
# You should have received a copy of the GNU Lesser General Public License
# along with systemd; If not, see <http://www.gnu.org/licenses/>.
import sys
import collections
import xml.etree.ElementTree as tree
TEMPLATE = '''\
<refentry id="systemd.directives">
<refentryinfo>
<title>systemd.directives</title>
<productname>systemd</productname>
<authorgroup>
<author>
<contrib>Developer</contrib>
<firstname>Zbigniew</firstname>
<surname>Jędrzejewski-Szmek</surname>
<email>zbyszek@in.waw.pl</email>
</author>
</authorgroup>
</refentryinfo>
<refmeta>
<refentrytitle>systemd.directives</refentrytitle>
<manvolnum>5</manvolnum>
</refmeta>
<refnamediv>
<refname>systemd.directives</refname>
<refpurpose>Index of configuration directives</refpurpose>
</refnamediv>
<refsect1>
<title>Unit directives</title>
<para>Directives for configuring units, used in unit
files.</para>
<variablelist id='unit-directives' />
</refsect1>
<refsect1>
<title>System manager directives</title>
<para>Directives for configuring the behaviour of the
systemd process.</para>
<variablelist id='systemd-directives' />
</refsect1>
<refsect1>
<title>Options on the kernel command line</title>
<para>Kernel boot options for configuring the behaviour of the
systemd process.</para>
<variablelist id='kernel-commandline-directives' />
</refsect1>
<refsect1>
<title>Environment variables</title>
<para>Environment variables understood by the systemd process.</para>
<variablelist id='environment-variables' />
</refsect1>
<refsect1>
<title>UDEV directives</title>
<para>Directives for configuring systemd units through the
udev database.</para>
<variablelist id='udev-directives' />
</refsect1>
<refsect1>
<title>Journal directives</title>
<para>Directives for configuring the behaviour of the
journald process.</para>
<variablelist id='journal-directives' />
</refsect1>
<refsect1>
<title>bootchart.conf directives</title>
<para>Directives for configuring the behaviour of the
systemd-bootchart process.</para>
<variablelist id='bootchart-directives' />
</refsect1>
<refsect1>
<title>Colophon</title>
<para id='colophon' />
</refsect1>
</refentry>
'''
COLOPHON = '''\
This index contains {count} entries in {sections} sections,
referring to {pages} individual manual pages.
'''
def _extract_directives(directive_groups, page):
t = tree.parse(page)
section = t.find('./refmeta/manvolnum').text
pagename = t.find('./refmeta/refentrytitle').text
for variablelist in t.iterfind('.//variablelist'):
klass = variablelist.attrib.get('class') or 'unit-directives'
stor = directive_groups[klass]
for varname in variablelist.iterfind('./varlistentry/term/varname'):
text = ''.join(varname.text.partition('=')[:2])
stor[text].append((pagename, section))
def _make_section(template, name, directives):
varlist = template.find(".//*[@id='{}']".format(name))
for varname, manpages in sorted(directives.items()):
entry = tree.SubElement(varlist, 'varlistentry')
a = tree.SubElement(tree.SubElement(entry, 'term'), 'varname')
a.text = varname
para = tree.SubElement(tree.SubElement(entry, 'listitem'), 'para')
b = None
for manpage, manvolume in sorted(manpages):
if b is not None:
b.tail = ', '
b = tree.SubElement(para, 'citerefentry')
c = tree.SubElement(b, 'refentrytitle')
c.text = manpage
d = tree.SubElement(b, 'manvolnum')
d.text = manvolume
entry.tail = '\n\n'
def _make_colophon(template, groups):
count = 0
pages = set()
for group in groups:
count += len(group)
for pagelist in group.values():
pages |= set(pagelist)
para = template.find(".//para[@id='colophon']")
para.text = COLOPHON.format(count=count,
sections=len(groups),
pages=len(pages))
def _make_page(template, directive_groups):
"""Create an XML tree from directive_groups.
directive_groups = {
'class': {'variable': [('manpage', 'manvolume'), ...],
'variable2': ...},
...
}
"""
for name, directives in directive_groups.items():
_make_section(template, name, directives)
_make_colophon(template, directive_groups.values())
return template
def make_page(xml_files):
"Extract directives from xml_files and return XML index tree."
template = tree.fromstring(TEMPLATE)
names = [vl.get('id') for vl in template.iterfind('.//variablelist')]
directive_groups = {name:collections.defaultdict(list)
for name in names}
for page in xml_files:
_extract_directives(directive_groups, page)
return _make_page(template, directive_groups)
if __name__ == '__main__':
tree.dump(make_page(sys.argv[1:]))
|
