sphinx/sphinx/ext/todo.py
2019-06-02 23:41:39 +09:00

288 lines
9.4 KiB
Python

"""
sphinx.ext.todo
~~~~~~~~~~~~~~~
Allow todos to be inserted into your documentation. Inclusion of todos can
be switched of by a configuration variable. The todolist directive collects
all todos of your project and lists them along with a backlink to the
original location.
:copyright: Copyright 2007-2019 by the Sphinx team, see AUTHORS.
:license: BSD, see LICENSE for details.
"""
import warnings
from typing import cast
from docutils import nodes
from docutils.parsers.rst import directives
from docutils.parsers.rst.directives.admonitions import BaseAdmonition
import sphinx
from sphinx.deprecation import RemovedInSphinx40Warning
from sphinx.domains import Domain
from sphinx.errors import NoUri
from sphinx.locale import _, __
from sphinx.util import logging
from sphinx.util.docutils import SphinxDirective
from sphinx.util.nodes import make_refnode
from sphinx.util.texescape import tex_escape_map
if False:
# For type annotation
from typing import Any, Dict, Iterable, List, Tuple # NOQA
from sphinx.application import Sphinx # NOQA
from sphinx.environment import BuildEnvironment # NOQA
from sphinx.writers.html import HTMLTranslator # NOQA
from sphinx.writers.latex import LaTeXTranslator # NOQA
logger = logging.getLogger(__name__)
class todo_node(nodes.Admonition, nodes.Element):
pass
class todolist(nodes.General, nodes.Element):
pass
class Todo(BaseAdmonition, SphinxDirective):
"""
A todo entry, displayed (if configured) in the form of an admonition.
"""
node_class = todo_node
has_content = True
required_arguments = 0
optional_arguments = 0
final_argument_whitespace = False
option_spec = {
'class': directives.class_option,
'name': directives.unchanged,
}
def run(self):
# type: () -> List[nodes.Node]
if not self.options.get('class'):
self.options['class'] = ['admonition-todo']
(todo,) = super().run() # type: Tuple[nodes.Node]
if isinstance(todo, nodes.system_message):
return [todo]
elif isinstance(todo, todo_node):
todo.insert(0, nodes.title(text=_('Todo')))
todo['docname'] = self.env.docname
self.add_name(todo)
self.set_source_info(todo)
self.state.document.note_explicit_target(todo)
return [todo]
else:
raise RuntimeError # never reached here
class TodoDomain(Domain):
name = 'todo'
label = 'todo'
@property
def todos(self):
# type: () -> Dict[str, List[todo_node]]
return self.data.setdefault('todos', {})
def clear_doc(self, docname):
# type: (str) -> None
self.todos.pop(docname, None)
def merge_domaindata(self, docnames, otherdata):
# type: (List[str], Dict) -> None
for docname in docnames:
self.todos[docname] = otherdata['todos'][docname]
def process_doc(self, env, docname, document):
# type: (BuildEnvironment, str, nodes.document) -> None
todos = self.todos.setdefault(docname, [])
for todo in document.traverse(todo_node):
env.app.emit('todo-defined', todo)
todos.append(todo)
if env.config.todo_emit_warnings:
logger.warning(__("TODO entry found: %s"), todo[1].astext(),
location=todo)
def process_todos(app, doctree):
# type: (Sphinx, nodes.document) -> None
warnings.warn('process_todos() is deprecated.', RemovedInSphinx40Warning)
# collect all todos in the environment
# this is not done in the directive itself because it some transformations
# must have already been run, e.g. substitutions
env = app.builder.env
if not hasattr(env, 'todo_all_todos'):
env.todo_all_todos = [] # type: ignore
for node in doctree.traverse(todo_node):
app.events.emit('todo-defined', node)
newnode = node.deepcopy()
newnode['ids'] = []
env.todo_all_todos.append({ # type: ignore
'docname': env.docname,
'source': node.source or env.doc2path(env.docname),
'lineno': node.line,
'todo': newnode,
'target': node['ids'][0],
})
if env.config.todo_emit_warnings:
label = cast(nodes.Element, node[1])
logger.warning(__("TODO entry found: %s"), label.astext(),
location=node)
class TodoList(SphinxDirective):
"""
A list of all todo entries.
"""
has_content = False
required_arguments = 0
optional_arguments = 0
final_argument_whitespace = False
option_spec = {} # type: Dict
def run(self):
# type: () -> List[nodes.Node]
# Simply insert an empty todolist node which will be replaced later
# when process_todo_nodes is called
return [todolist('')]
def process_todo_nodes(app, doctree, fromdocname):
# type: (Sphinx, nodes.document, str) -> None
"""Replace all todolist nodes with a list of the collected todos.
Augment each todo with a backlink to the original location.
"""
domain = cast(TodoDomain, app.env.get_domain('todo'))
todos = sum(domain.todos.values(), [])
for node in doctree.traverse(todolist):
if node.get('ids'):
content = [nodes.target()] # type: List[nodes.Element]
else:
content = []
if not app.config['todo_include_todos']:
node.replace_self(content)
continue
for todo_info in todos:
para = nodes.paragraph(classes=['todo-source'])
if app.config['todo_link_only']:
description = _('<<original entry>>')
else:
description = (
_('(The <<original entry>> is located in %s, line %d.)') %
(todo_info.source, todo_info.line)
)
desc1 = description[:description.find('<<')]
desc2 = description[description.find('>>') + 2:]
para += nodes.Text(desc1, desc1)
# Create a reference
innernode = nodes.emphasis(_('original entry'), _('original entry'))
try:
para += make_refnode(app.builder, fromdocname, todo_info['docname'],
todo_info['ids'][0], innernode)
except NoUri:
# ignore if no URI can be determined, e.g. for LaTeX output
pass
para += nodes.Text(desc2, desc2)
todo_entry = todo_info.deepcopy()
todo_entry['ids'].clear()
# (Recursively) resolve references in the todo content
app.env.resolve_references(todo_entry, todo_info['docname'],
app.builder)
# Insert into the todolist
content.append(todo_entry)
content.append(para)
node.replace_self(content)
def purge_todos(app, env, docname):
# type: (Sphinx, BuildEnvironment, str) -> None
warnings.warn('purge_todos() is deprecated.', RemovedInSphinx40Warning)
if not hasattr(env, 'todo_all_todos'):
return
env.todo_all_todos = [todo for todo in env.todo_all_todos # type: ignore
if todo['docname'] != docname]
def merge_info(app, env, docnames, other):
# type: (Sphinx, BuildEnvironment, Iterable[str], BuildEnvironment) -> None
warnings.warn('merge_info() is deprecated.', RemovedInSphinx40Warning)
if not hasattr(other, 'todo_all_todos'):
return
if not hasattr(env, 'todo_all_todos'):
env.todo_all_todos = [] # type: ignore
env.todo_all_todos.extend(other.todo_all_todos) # type: ignore
def visit_todo_node(self, node):
# type: (HTMLTranslator, todo_node) -> None
if self.config.todo_include_todos:
self.visit_admonition(node)
else:
raise nodes.SkipNode
def depart_todo_node(self, node):
# type: (HTMLTranslator, todo_node) -> None
self.depart_admonition(node)
def latex_visit_todo_node(self, node):
# type: (LaTeXTranslator, todo_node) -> None
if self.config.todo_include_todos:
self.body.append('\n\\begin{sphinxadmonition}{note}{')
self.body.append(self.hypertarget_to(node))
title_node = cast(nodes.title, node[0])
self.body.append('%s:}' % title_node.astext().translate(tex_escape_map))
node.pop(0)
else:
raise nodes.SkipNode
def latex_depart_todo_node(self, node):
# type: (LaTeXTranslator, todo_node) -> None
self.body.append('\\end{sphinxadmonition}\n')
def setup(app):
# type: (Sphinx) -> Dict[str, Any]
app.add_event('todo-defined')
app.add_config_value('todo_include_todos', False, 'html')
app.add_config_value('todo_link_only', False, 'html')
app.add_config_value('todo_emit_warnings', False, 'html')
app.add_node(todolist)
app.add_node(todo_node,
html=(visit_todo_node, depart_todo_node),
latex=(latex_visit_todo_node, latex_depart_todo_node),
text=(visit_todo_node, depart_todo_node),
man=(visit_todo_node, depart_todo_node),
texinfo=(visit_todo_node, depart_todo_node))
app.add_directive('todo', Todo)
app.add_directive('todolist', TodoList)
app.add_domain(TodoDomain)
app.connect('doctree-resolved', process_todo_nodes)
return {
'version': sphinx.__display_version__,
'env_version': 2,
'parallel_read_safe': True
}