Merge "avoid additional requirement for building docs"
This commit is contained in:
Jenkins
Gerrit Code Review
commit
f2c057782b
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@ -19,7 +19,7 @@ import os
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import sys
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from docutils import nodes
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from sphinxarg import ext
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from . import ext
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def _get_command(classes):
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@ -0,0 +1,386 @@
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# Copyright (c) 2013 Alex Rudakov
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
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# implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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from argparse import ArgumentParser
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import os
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from docutils import nodes
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from docutils.statemachine import StringList
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from docutils.parsers.rst.directives import flag, unchanged
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from sphinx.util.compat import Directive
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from sphinx.util.nodes import nested_parse_with_titles
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from .parser import parse_parser, parser_navigate
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def map_nested_definitions(nested_content):
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if nested_content is None:
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raise Exception('Nested content should be iterable, not null')
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# build definition dictionary
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definitions = {}
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for item in nested_content:
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if not isinstance(item, nodes.definition_list):
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continue
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for subitem in item:
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if not isinstance(subitem, nodes.definition_list_item):
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continue
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if not len(subitem.children) > 0:
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continue
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classifier = '@after'
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idx = subitem.first_child_matching_class(nodes.classifier)
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if idx is not None:
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ci = subitem[idx]
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if len(ci.children) > 0:
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classifier = ci.children[0].astext()
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if classifier is not None and classifier not in (
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'@replace', '@before', '@after'):
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raise Exception('Unknown classifier: %s' % classifier)
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idx = subitem.first_child_matching_class(nodes.term)
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if idx is not None:
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ch = subitem[idx]
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if len(ch.children) > 0:
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term = ch.children[0].astext()
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idx = subitem.first_child_matching_class(nodes.definition)
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if idx is not None:
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def_node = subitem[idx]
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def_node.attributes['classifier'] = classifier
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definitions[term] = def_node
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return definitions
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def print_arg_list(data, nested_content):
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definitions = map_nested_definitions(nested_content)
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items = []
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if 'args' in data:
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for arg in data['args']:
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my_def = [nodes.paragraph(text=arg['help'])] if arg['help'] else []
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name = arg['name']
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my_def = apply_definition(definitions, my_def, name)
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if len(my_def) == 0:
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my_def.append(nodes.paragraph(text='Undocumented'))
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if 'choices' in arg:
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my_def.append(nodes.paragraph(
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text=('Possible choices: %s' % ', '.join([str(c) for c in arg['choices']]))))
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items.append(
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nodes.option_list_item(
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'', nodes.option_group('', nodes.option_string(text=name)),
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nodes.description('', *my_def)))
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return nodes.option_list('', *items) if items else None
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def print_opt_list(data, nested_content):
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definitions = map_nested_definitions(nested_content)
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items = []
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if 'options' in data:
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for opt in data['options']:
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names = []
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my_def = [nodes.paragraph(text=opt['help'])] if opt['help'] else []
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for name in opt['name']:
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option_declaration = [nodes.option_string(text=name)]
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if opt['default'] is not None \
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and opt['default'] != '==SUPPRESS==':
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option_declaration += nodes.option_argument(
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'', text='=' + str(opt['default']))
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names.append(nodes.option('', *option_declaration))
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my_def = apply_definition(definitions, my_def, name)
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if len(my_def) == 0:
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my_def.append(nodes.paragraph(text='Undocumented'))
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if 'choices' in opt:
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my_def.append(nodes.paragraph(
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text=('Possible choices: %s' % ', '.join([str(c) for c in opt['choices']]))))
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items.append(
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nodes.option_list_item(
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'', nodes.option_group('', *names),
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nodes.description('', *my_def)))
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return nodes.option_list('', *items) if items else None
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def print_command_args_and_opts(arg_list, opt_list, sub_list=None):
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items = []
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if arg_list:
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items.append(nodes.definition_list_item(
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'', nodes.term(text='Positional arguments:'),
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nodes.definition('', arg_list)))
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if opt_list:
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items.append(nodes.definition_list_item(
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'', nodes.term(text='Options:'),
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nodes.definition('', opt_list)))
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if sub_list and len(sub_list):
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items.append(nodes.definition_list_item(
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'', nodes.term(text='Sub-commands:'),
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nodes.definition('', sub_list)))
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return nodes.definition_list('', *items)
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def apply_definition(definitions, my_def, name):
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if name in definitions:
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definition = definitions[name]
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classifier = definition['classifier']
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if classifier == '@replace':
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return definition.children
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if classifier == '@after':
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return my_def + definition.children
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if classifier == '@before':
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return definition.children + my_def
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raise Exception('Unknown classifier: %s' % classifier)
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return my_def
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def print_subcommand_list(data, nested_content):
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definitions = map_nested_definitions(nested_content)
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items = []
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if 'children' in data:
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for child in data['children']:
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my_def = [nodes.paragraph(
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text=child['help'])] if child['help'] else []
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name = child['name']
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my_def = apply_definition(definitions, my_def, name)
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if len(my_def) == 0:
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my_def.append(nodes.paragraph(text='Undocumented'))
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if 'description' in child:
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my_def.append(nodes.paragraph(text=child['description']))
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my_def.append(nodes.literal_block(text=child['usage']))
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my_def.append(print_command_args_and_opts(
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print_arg_list(child, nested_content),
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print_opt_list(child, nested_content),
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print_subcommand_list(child, nested_content)
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))
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items.append(
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nodes.definition_list_item(
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'',
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nodes.term('', '', nodes.strong(text=name)),
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nodes.definition('', *my_def)
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)
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)
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return nodes.definition_list('', *items)
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class ArgParseDirective(Directive):
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has_content = True
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option_spec = dict(module=unchanged, func=unchanged, ref=unchanged,
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prog=unchanged, path=unchanged, nodefault=flag,
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manpage=unchanged, nosubcommands=unchanged, passparser=flag)
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def _construct_manpage_specific_structure(self, parser_info):
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"""
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Construct a typical man page consisting of the following elements:
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NAME (automatically generated, out of our control)
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SYNOPSIS
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DESCRIPTION
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OPTIONS
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FILES
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SEE ALSO
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BUGS
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"""
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# SYNOPSIS section
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synopsis_section = nodes.section(
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'',
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nodes.title(text='Synopsis'),
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nodes.literal_block(text=parser_info["bare_usage"]),
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ids=['synopsis-section'])
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# DESCRIPTION section
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description_section = nodes.section(
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'',
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nodes.title(text='Description'),
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nodes.paragraph(text=parser_info.get(
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'description', parser_info.get(
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'help', "undocumented").capitalize())),
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ids=['description-section'])
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nested_parse_with_titles(
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self.state, self.content, description_section)
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if parser_info.get('epilog'):
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# TODO: do whatever sphinx does to understand ReST inside
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# docstrings magically imported from other places. The nested
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# parse method invoked above seem to be able to do this but
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# I haven't found a way to do it for arbitrary text
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description_section += nodes.paragraph(
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text=parser_info['epilog'])
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# OPTIONS section
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options_section = nodes.section(
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'',
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nodes.title(text='Options'),
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ids=['options-section'])
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if 'args' in parser_info:
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options_section += nodes.paragraph()
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options_section += nodes.subtitle(text='Positional arguments:')
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options_section += self._format_positional_arguments(parser_info)
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if 'options' in parser_info:
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options_section += nodes.paragraph()
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options_section += nodes.subtitle(text='Optional arguments:')
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options_section += self._format_optional_arguments(parser_info)
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items = [
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# NOTE: we cannot generate NAME ourselves. It is generated by
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# docutils.writers.manpage
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synopsis_section,
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description_section,
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# TODO: files
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# TODO: see also
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# TODO: bugs
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]
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if len(options_section.children) > 1:
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items.append(options_section)
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if 'nosubcommands' not in self.options:
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# SUBCOMMANDS section (non-standard)
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subcommands_section = nodes.section(
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'',
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nodes.title(text='Sub-Commands'),
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ids=['subcommands-section'])
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if 'children' in parser_info:
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subcommands_section += self._format_subcommands(parser_info)
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if len(subcommands_section) > 1:
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items.append(subcommands_section)
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if os.getenv("INCLUDE_DEBUG_SECTION"):
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import json
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# DEBUG section (non-standard)
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debug_section = nodes.section(
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'',
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nodes.title(text="Argparse + Sphinx Debugging"),
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nodes.literal_block(text=json.dumps(parser_info, indent=' ')),
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ids=['debug-section'])
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items.append(debug_section)
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return items
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def _format_positional_arguments(self, parser_info):
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assert 'args' in parser_info
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items = []
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for arg in parser_info['args']:
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arg_items = []
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if arg['help']:
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arg_items.append(nodes.paragraph(text=arg['help']))
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else:
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arg_items.append(nodes.paragraph(text='Undocumented'))
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if 'choices' in arg:
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arg_items.append(
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nodes.paragraph(
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text='Possible choices: ' + ', '.join(arg['choices'])))
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items.append(
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nodes.option_list_item(
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'',
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nodes.option_group(
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'', nodes.option(
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'', nodes.option_string(text=arg['metavar'])
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)
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),
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nodes.description('', *arg_items)))
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return nodes.option_list('', *items)
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def _format_optional_arguments(self, parser_info):
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assert 'options' in parser_info
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items = []
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for opt in parser_info['options']:
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names = []
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opt_items = []
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for name in opt['name']:
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option_declaration = [nodes.option_string(text=name)]
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if opt['default'] is not None \
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and opt['default'] != '==SUPPRESS==':
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option_declaration += nodes.option_argument(
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'', text='=' + str(opt['default']))
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names.append(nodes.option('', *option_declaration))
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if opt['help']:
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opt_items.append(nodes.paragraph(text=opt['help']))
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else:
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opt_items.append(nodes.paragraph(text='Undocumented'))
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if 'choices' in opt:
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opt_items.append(
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nodes.paragraph(
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text='Possible choices: ' + ', '.join(opt['choices'])))
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items.append(
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nodes.option_list_item(
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'', nodes.option_group('', *names),
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nodes.description('', *opt_items)))
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return nodes.option_list('', *items)
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def _format_subcommands(self, parser_info):
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assert 'children' in parser_info
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items = []
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for subcmd in parser_info['children']:
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subcmd_items = []
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if subcmd['help']:
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subcmd_items.append(nodes.paragraph(text=subcmd['help']))
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else:
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subcmd_items.append(nodes.paragraph(text='Undocumented'))
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items.append(
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nodes.definition_list_item(
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'',
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nodes.term('', '', nodes.strong(
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text=subcmd['bare_usage'])),
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nodes.definition('', *subcmd_items)))
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return nodes.definition_list('', *items)
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def _nested_parse_paragraph(self, text):
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content = nodes.paragraph()
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self.state.nested_parse(StringList(text.split("\n")), 0, content)
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return content
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def run(self):
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if 'module' in self.options and 'func' in self.options:
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module_name = self.options['module']
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attr_name = self.options['func']
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elif 'ref' in self.options:
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_parts = self.options['ref'].split('.')
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module_name = '.'.join(_parts[0:-1])
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attr_name = _parts[-1]
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else:
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raise self.error(
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':module: and :func: should be specified, or :ref:')
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mod = __import__(module_name, globals(), locals(), [attr_name])
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if not hasattr(mod, attr_name):
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raise self.error((
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'Module "%s" has no attribute "%s"\n'
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'Incorrect argparse :module: or :func: values?'
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) % (module_name, attr_name))
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func = getattr(mod, attr_name)
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if isinstance(func, ArgumentParser):
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parser = func
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elif 'passparser' in self.options:
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parser = ArgumentParser()
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func(parser)
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else:
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parser = func()
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if 'path' not in self.options:
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self.options['path'] = ''
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path = str(self.options['path'])
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if 'prog' in self.options:
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parser.prog = self.options['prog']
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result = parse_parser(
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parser, skip_default_values='nodefault' in self.options)
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result = parser_navigate(result, path)
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if 'manpage' in self.options:
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return self._construct_manpage_specific_structure(result)
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nested_content = nodes.paragraph()
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self.state.nested_parse(
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self.content, self.content_offset, nested_content)
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nested_content = nested_content.children
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items = []
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# add common content between
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for item in nested_content:
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if not isinstance(item, nodes.definition_list):
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items.append(item)
|
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if 'description' in result:
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items.append(self._nested_parse_paragraph(result['description']))
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items.append(nodes.literal_block(text=result['usage']))
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items.append(print_command_args_and_opts(
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print_arg_list(result, nested_content),
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print_opt_list(result, nested_content),
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print_subcommand_list(result, nested_content)
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))
|
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if 'epilog' in result:
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items.append(self._nested_parse_paragraph(result['epilog']))
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return items
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||||
|
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def setup(app):
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app.add_directive('argparse', ArgParseDirective)
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|
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@ -0,0 +1,138 @@
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# Copyright (c) 2013 Alex Rudakov
|
||||
#
|
||||
# Licensed under the Apache License, Version 2.0 (the "License");
|
||||
# you may not use this file except in compliance with the License.
|
||||
# You may obtain a copy of the License at
|
||||
#
|
||||
# http://www.apache.org/licenses/LICENSE-2.0
|
||||
#
|
||||
# Unless required by applicable law or agreed to in writing, software
|
||||
# distributed under the License is distributed on an "AS IS" BASIS,
|
||||
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
|
||||
# implied.
|
||||
# See the License for the specific language governing permissions and
|
||||
# limitations under the License.
|
||||
|
||||
from argparse import _HelpAction, _SubParsersAction
|
||||
import re
|
||||
|
||||
|
||||
class NavigationException(Exception):
|
||||
pass
|
||||
|
||||
|
||||
def parser_navigate(parser_result, path, current_path=None):
|
||||
if isinstance(path, str):
|
||||
if path == '':
|
||||
return parser_result
|
||||
path = re.split('\s+', path)
|
||||
current_path = current_path or []
|
||||
if len(path) == 0:
|
||||
return parser_result
|
||||
if 'children' not in parser_result:
|
||||
raise NavigationException(
|
||||
'Current parser have no children elements. (path: %s)' %
|
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' '.join(current_path))
|
||||
next_hop = path.pop(0)
|
||||
for child in parser_result['children']:
|
||||
if child['name'] == next_hop:
|
||||
current_path.append(next_hop)
|
||||
return parser_navigate(child, path, current_path)
|
||||
raise NavigationException(
|
||||
'Current parser have no children element with name: %s (path: %s)' % (
|
||||
next_hop, ' '.join(current_path)))
|
||||
|
||||
|
||||
def _try_add_parser_attribute(data, parser, attribname):
|
||||
attribval = getattr(parser, attribname, None)
|
||||
if attribval is None:
|
||||
return
|
||||
if not isinstance(attribval, str):
|
||||
return
|
||||
if len(attribval) > 0:
|
||||
data[attribname] = attribval
|
||||
|
||||
|
||||
def _format_usage_without_prefix(parser):
|
||||
"""
|
||||
Use private argparse APIs to get the usage string without
|
||||
the 'usage: ' prefix.
|
||||
"""
|
||||
fmt = parser._get_formatter()
|
||||
fmt.add_usage(parser.usage, parser._actions,
|
||||
parser._mutually_exclusive_groups, prefix='')
|
||||
return fmt.format_help().strip()
|
||||
|
||||
|
||||
def parse_parser(parser, data=None, **kwargs):
|
||||
if data is None:
|
||||
data = {
|
||||
'name': '',
|
||||
'usage': parser.format_usage().strip(),
|
||||
'bare_usage': _format_usage_without_prefix(parser),
|
||||
'prog': parser.prog,
|
||||
}
|
||||
_try_add_parser_attribute(data, parser, 'description')
|
||||
_try_add_parser_attribute(data, parser, 'epilog')
|
||||
for action in parser._get_positional_actions():
|
||||
if isinstance(action, _HelpAction):
|
||||
continue
|
||||
if isinstance(action, _SubParsersAction):
|
||||
helps = {}
|
||||
for item in action._choices_actions:
|
||||
helps[item.dest] = item.help
|
||||
|
||||
# commands which share an existing parser are an alias,
|
||||
# don't duplicate docs
|
||||
subsection_alias = {}
|
||||
subsection_alias_names = set()
|
||||
for name, subaction in action._name_parser_map.items():
|
||||
if subaction not in subsection_alias:
|
||||
subsection_alias[subaction] = []
|
||||
else:
|
||||
subsection_alias[subaction].append(name)
|
||||
subsection_alias_names.add(name)
|
||||
|
||||
for name, subaction in action._name_parser_map.items():
|
||||
if name in subsection_alias_names:
|
||||
continue
|
||||
subalias = subsection_alias[subaction]
|
||||
subaction.prog = '%s %s' % (parser.prog, name)
|
||||
subdata = {
|
||||
'name': name if not subalias else
|
||||
'%s (%s)' % (name, ', '.join(subalias)),
|
||||
'help': helps.get(name, ''),
|
||||
'usage': subaction.format_usage().strip(),
|
||||
'bare_usage': _format_usage_without_prefix(subaction),
|
||||
}
|
||||
parse_parser(subaction, subdata, **kwargs)
|
||||
data.setdefault('children', []).append(subdata)
|
||||
continue
|
||||
if 'args' not in data:
|
||||
data['args'] = []
|
||||
arg = {
|
||||
'name': action.dest,
|
||||
'help': action.help or '',
|
||||
'metavar': action.metavar
|
||||
}
|
||||
if action.choices:
|
||||
arg['choices'] = action.choices
|
||||
data['args'].append(arg)
|
||||
show_defaults = (
|
||||
('skip_default_values' not in kwargs)
|
||||
or (kwargs['skip_default_values'] is False))
|
||||
for action in parser._get_optional_actions():
|
||||
if isinstance(action, _HelpAction):
|
||||
continue
|
||||
if 'options' not in data:
|
||||
data['options'] = []
|
||||
option = {
|
||||
'name': action.option_strings,
|
||||
'default': action.default if show_defaults else '==SUPPRESS==',
|
||||
'help': action.help or ''
|
||||
}
|
||||
if action.choices:
|
||||
option['choices'] = action.choices
|
||||
if "==SUPPRESS==" not in option['help']:
|
||||
data['options'].append(option)
|
||||
return data
|
||||
Loading…
Reference in New Issue