mirror of
https://github.com/systemd/systemd.git
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102 lines
2.9 KiB
Python
Executable File
102 lines
2.9 KiB
Python
Executable File
#!/usr/bin/env python3
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# SPDX-License-Identifier: LGPL-2.1-or-later
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import collections
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import glob
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import pprint
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import sys
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from pathlib import Path
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from xml_helper import xml_parse
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def man(page, number):
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return f'{page}.{number}'
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def add_rules(rules, name):
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xml = xml_parse(name)
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# print('parsing {}'.format(name), file=sys.stderr)
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if xml.getroot().tag != 'refentry':
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return
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conditional = xml.getroot().get('conditional') or ''
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rulegroup = rules[conditional]
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refmeta = xml.find('./refmeta')
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title = refmeta.find('./refentrytitle').text
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number = refmeta.find('./manvolnum').text
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refnames = xml.findall('./refnamediv/refname')
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target = man(refnames[0].text, number)
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if title != refnames[0].text:
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raise ValueError('refmeta and refnamediv disagree: ' + name)
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for refname in refnames:
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assert all(refname not in group
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for group in rules.values()), "duplicate page name"
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alias = man(refname.text, number)
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rulegroup[alias] = target
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# print('{} => {} [{}]'.format(alias, target, conditional), file=sys.stderr)
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def create_rules(xml_files):
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" {conditional => {alias-name => source-name}} "
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rules = collections.defaultdict(dict)
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for name in xml_files:
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try:
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add_rules(rules, name)
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except Exception:
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print("Failed to process", name, file=sys.stderr)
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raise
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return rules
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def mjoin(files):
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return ' \\\n\t'.join(sorted(files) or '#')
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MESON_HEADER = '''\
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# SPDX-License-Identifier: LGPL-2.1-or-later
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# Do not edit. Generated by update-man-rules.py.
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# Update with:
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# ninja -C build update-man-rules
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manpages = ['''
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MESON_FOOTER = '''\
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]
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# Really, do not edit.
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'''
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def make_mesonfile(rules, _dist_files):
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# reformat rules as
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# grouped = [ [name, section, [alias...], condition], ...]
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#
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# but first create a dictionary like
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# lists = { (name, condition) => [alias...]
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grouped = collections.defaultdict(list)
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for condition, items in rules.items():
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for alias, name in items.items():
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group = grouped[(name, condition)]
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if name != alias:
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group.append(alias)
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lines = [ [p[0][:-2], p[0][-1], sorted(a[:-2] for a in aliases), p[1]]
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for p, aliases in sorted(grouped.items()) ]
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return '\n'.join((MESON_HEADER, pprint.pformat(lines)[1:-1], MESON_FOOTER))
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def main():
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source_glob = sys.argv[1]
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target = Path(sys.argv[2])
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pages = glob.glob(source_glob)
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pages = (p for p in pages
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if Path(p).name not in {
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'systemd.directives.xml',
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'systemd.index.xml',
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'directives-template.xml'})
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rules = create_rules(pages)
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dist_files = (Path(p).name for p in pages)
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text = make_mesonfile(rules, dist_files)
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tmp = target.with_suffix('.tmp')
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tmp.write_text(text)
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tmp.rename(target)
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if __name__ == '__main__':
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main()
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