build-sys: move python helpers to tools directory

[elogind.git] / tools / make-man-index.py

diff --git a/tools/make-man-index.py b/tools/make-man-index.py
new file mode 100755 (executable)
index 0000000..74a47b8
--- /dev/null
+++ b/tools/make-man-index.py
@@ -0,0 +1,136 @@
+#  -*- 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 sys
+import re
+from xml_helper import *
+
+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 check_id(page, t):
+    id = t.getroot().get('id')
+    if not re.search('/' + id + '[.]', page):
+        raise ValueError("id='{}' is not the same as page name '{}'".format(id, page))
+
+def make_index(pages):
+    index = collections.defaultdict(list)
+    for p in pages:
+        t = xml_parse(p)
+        check_id(p, t)
+        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__':
+    with open(sys.argv[1], 'wb') as f:
+        f.write(xml_print(make_page(*sys.argv[2:])))