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systemd-stable/make-man-index.py
Zbigniew Jędrzejewski-Szmek 56ba3c78ae build-sys: create Makefile-man.am automatically
man rules were repeating the same information in too many places,
which was error prone. Those rules can be easily generated from .xml
files. For efficiency and because python is not a required dependency,
Makefile-man.am is only regenerated when requested with

  make update-man-list

If no metadata in man/*.xml changed, this file should not change. So
only when a new man page or a new alias is added, this file should
show up in 'git diff'. The change should then be committed.

If the support for building from git without python was dropped, we
could drop Makefile-man.am from version control. This would also
increase the partial build time (since more stuff would be rebuild
whenever sources in man/*.xml would be modified), so it would probably
wouldn't be worth it.
2013-02-06 23:16:16 -05:00

127 lines
3.7 KiB
Python
Executable File

# -*- Mode: python; coding: utf-8; indent-tabs-mode: nil -*- */
#
# This file is part of systemd.
#
# Copyright 2012 Lennart Poettering
# Copyright 2013 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 collections
import xml.etree.ElementTree as tree
import sys
MDASH = '' if sys.version_info.major >= 3 else ' -- '
TEMPLATE = '''\
<refentry id="systemd.index" conditional="HAVE_PYTHON">
<refentryinfo>
<title>systemd.index</title>
<productname>systemd</productname>
<authorgroup>
<author>
<contrib>Developer</contrib>
<firstname>Lennart</firstname>
<surname>Poettering</surname>
<email>lennart@poettering.net</email>
</author>
</authorgroup>
</refentryinfo>
<refmeta>
<refentrytitle>systemd.index</refentrytitle>
<manvolnum>7</manvolnum>
</refmeta>
<refnamediv>
<refname>systemd.index</refname>
<refpurpose>List all manpages from the systemd project</refpurpose>
</refnamediv>
</refentry>
'''
SUMMARY = '''\
<refsect1>
<title>See Also</title>
<para>
<citerefentry><refentrytitle>systemd.directives</refentrytitle><manvolnum>7</manvolnum></citerefentry>
</para>
<para id='counts' />
</refsect1>
'''
COUNTS = '\
This index contains {count} entries, referring to {pages} individual manual pages.'
def make_index(pages):
index = collections.defaultdict(list)
for p in pages:
t = tree.parse(p)
section = t.find('./refmeta/manvolnum').text
refname = t.find('./refnamediv/refname').text
purpose = ' '.join(t.find('./refnamediv/refpurpose').text.split())
for f in t.findall('./refnamediv/refname'):
infos = (f.text, section, purpose, refname)
index[f.text[0].upper()].append(infos)
return index
def add_letter(template, letter, pages):
refsect1 = tree.SubElement(template, 'refsect1')
title = tree.SubElement(refsect1, 'title')
title.text = letter
para = tree.SubElement(refsect1, 'para')
for info in sorted(pages, key=lambda info: str.lower(info[0])):
refname, section, purpose, realname = info
b = tree.SubElement(para, 'citerefentry')
c = tree.SubElement(b, 'refentrytitle')
c.text = refname
d = tree.SubElement(b, 'manvolnum')
d.text = section
b.tail = MDASH + purpose # + ' (' + p + ')'
tree.SubElement(para, 'sbr')
def add_summary(template, indexpages):
count = 0
pages = set()
for group in indexpages:
count += len(group)
for info in group:
refname, section, purpose, realname = info
pages.add((realname, section))
refsect1 = tree.fromstring(SUMMARY)
template.append(refsect1)
para = template.find(".//para[@id='counts']")
para.text = COUNTS.format(count=count, pages=len(pages))
def make_page(xml_files):
template = tree.fromstring(TEMPLATE)
index = make_index(xml_files)
for letter in sorted(index):
add_letter(template, letter, index[letter])
add_summary(template, index.values())
return template
if __name__ == '__main__':
tree.dump(make_page(sys.argv[1:]))