mirror of
https://github.com/systemd/systemd
synced 2024-09-06 08:46:19 +00:00
175 lines
6.6 KiB
Python
Executable file
175 lines
6.6 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 sys
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import collections
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import re
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from xml_helper import xml_parse, xml_print, tree
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from copy import deepcopy
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COLOPHON = '''\
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This index contains {count} entries in {sections} sections,
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referring to {pages} individual manual pages.
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'''
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def _extract_directives(directive_groups, formatting, page):
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t = xml_parse(page)
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section = t.find('./refmeta/manvolnum').text
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pagename = t.find('./refmeta/refentrytitle').text
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storopt = directive_groups['options']
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for variablelist in t.iterfind('.//variablelist'):
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klass = variablelist.attrib.get('class')
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searchpath = variablelist.attrib.get('xpath','./varlistentry/term/varname')
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storvar = directive_groups[klass or 'miscellaneous']
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# <option>s go in OPTIONS, unless class is specified
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for xpath, stor in ((searchpath, storvar),
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('./varlistentry/term/option',
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storvar if klass else storopt)):
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for name in variablelist.iterfind(xpath):
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text = re.sub(r'([= ]).*', r'\1', name.text).rstrip()
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if text.startswith('-'):
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# for options, merge options with and without mandatory arg
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text = text.partition('=')[0]
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stor[text].append((pagename, section))
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if text not in formatting:
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# use element as formatted display
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if name.text[-1] in "= '":
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name.clear()
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else:
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name.tail = ''
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name.text = text
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formatting[text] = name
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extra = variablelist.attrib.get('extra-ref')
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if extra:
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stor[extra].append((pagename, section))
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if extra not in formatting:
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elt = tree.Element("varname")
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elt.text= extra
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formatting[extra] = elt
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storfile = directive_groups['filenames']
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for xpath, absolute_only in (('.//refsynopsisdiv//filename', False),
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('.//refsynopsisdiv//command', False),
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('.//filename', True)):
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for name in t.iterfind(xpath):
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if absolute_only and not (name.text and name.text.startswith('/')):
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continue
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if name.attrib.get('index') == 'false':
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continue
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name.tail = ''
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if name.text:
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if name.text.endswith('*'):
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name.text = name.text[:-1]
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if not name.text.startswith('.'):
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text = name.text.partition(' ')[0]
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if text != name.text:
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name.clear()
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name.text = text
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if text.endswith('/'):
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text = text[:-1]
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storfile[text].append((pagename, section))
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if text not in formatting:
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# use element as formatted display
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formatting[text] = name
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else:
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text = ' '.join(name.itertext())
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storfile[text].append((pagename, section))
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formatting[text] = name
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for name in t.iterfind('.//constant'):
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if name.attrib.get('index') == 'false':
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continue
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name.tail = ''
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if name.text.startswith('('): # a cast, strip it
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name.text = name.text.partition(' ')[2]
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klass = name.attrib.get('class') or 'constants'
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storfile = directive_groups[klass]
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storfile[name.text].append((pagename, section))
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formatting[name.text] = name
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storfile = directive_groups['specifiers']
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for name in t.iterfind(".//table[@class='specifiers']//entry/literal"):
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if name.text[0] != '%' or name.getparent().text is not None:
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continue
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if name.attrib.get('index') == 'false':
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continue
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storfile[name.text].append((pagename, section))
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formatting[name.text] = name
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for name in t.iterfind(".//literal[@class='specifiers']"):
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storfile[name.text].append((pagename, section))
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formatting[name.text] = name
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def _make_section(template, name, directives, formatting):
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varlist = template.find(".//*[@id='{}']".format(name))
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for varname, manpages in sorted(directives.items()):
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entry = tree.SubElement(varlist, 'varlistentry')
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term = tree.SubElement(entry, 'term')
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display = deepcopy(formatting[varname])
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term.append(display)
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para = tree.SubElement(tree.SubElement(entry, 'listitem'), 'para')
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b = None
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for manpage, manvolume in sorted(set(manpages)):
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if b is not None:
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b.tail = ', '
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b = tree.SubElement(para, 'citerefentry')
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c = tree.SubElement(b, 'refentrytitle')
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c.text = manpage
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c.attrib['target'] = varname
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d = tree.SubElement(b, 'manvolnum')
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d.text = manvolume
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entry.tail = '\n\n'
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def _make_colophon(template, groups):
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count = 0
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pages = set()
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for group in groups:
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count += len(group)
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for pagelist in group.values():
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pages |= set(pagelist)
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para = template.find(".//para[@id='colophon']")
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para.text = COLOPHON.format(count=count,
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sections=len(groups),
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pages=len(pages))
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def _make_page(template, directive_groups, formatting):
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"""Create an XML tree from directive_groups.
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directive_groups = {
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'class': {'variable': [('manpage', 'manvolume'), ...],
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'variable2': ...},
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...
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}
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"""
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for name, directives in directive_groups.items():
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_make_section(template, name, directives, formatting)
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_make_colophon(template, directive_groups.values())
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return template
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def make_page(template_path, xml_files):
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"Extract directives from xml_files and return XML index tree."
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template = xml_parse(template_path)
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names = [vl.get('id') for vl in template.iterfind('.//variablelist')]
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directive_groups = {name:collections.defaultdict(list)
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for name in names}
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formatting = {}
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for page in xml_files:
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try:
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_extract_directives(directive_groups, formatting, page)
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except Exception:
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raise ValueError("failed to process " + page)
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return _make_page(template, directive_groups, formatting)
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if __name__ == '__main__':
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with open(sys.argv[1], 'wb') as f:
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template_path = sys.argv[2]
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xml_files = sys.argv[3:]
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xml = make_page(template_path, xml_files)
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f.write(xml_print(xml))
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