"""
sphinx.application
~~~~~~~~~~~~~~~~~~
Sphinx application class and extensibility interface.
Gracefully adapted from the TextPress system by Armin.
:copyright: Copyright 2007-2019 by the Sphinx team, see AUTHORS.
:license: BSD, see LICENSE for details.
"""
import os
import pickle
import sys
import warnings
from collections import deque
from inspect import isclass
from io import StringIO
from os import path
from docutils.parsers.rst import Directive, roles
import sphinx
from sphinx import package_dir, locale
from sphinx.config import Config
from sphinx.config import CONFIG_FILENAME # NOQA # for compatibility (RemovedInSphinx30)
from sphinx.deprecation import (
RemovedInSphinx30Warning, RemovedInSphinx40Warning
)
from sphinx.environment import BuildEnvironment
from sphinx.errors import ApplicationError, ConfigError, VersionRequirementError
from sphinx.events import EventManager
from sphinx.locale import __
from sphinx.project import Project
from sphinx.registry import SphinxComponentRegistry
from sphinx.util import docutils
from sphinx.util import import_object, progress_message
from sphinx.util import logging
from sphinx.util.build_phase import BuildPhase
from sphinx.util.console import bold # type: ignore
from sphinx.util.docutils import directive_helper
from sphinx.util.i18n import CatalogRepository
from sphinx.util.logging import prefixed_warnings
from sphinx.util.osutil import abspath, ensuredir, relpath
from sphinx.util.tags import Tags
if False:
# For type annotation
from typing import Any, Callable, Dict, IO, Iterable, Iterator, List, Tuple, Type, Union # NOQA
from docutils import nodes # NOQA
from docutils.parsers import Parser # NOQA
from docutils.transforms import Transform # NOQA
from sphinx.builders import Builder # NOQA
from sphinx.domains import Domain, Index # NOQA
from sphinx.environment.collectors import EnvironmentCollector # NOQA
from sphinx.extension import Extension # NOQA
from sphinx.roles import XRefRole # NOQA
from sphinx.theming import Theme # NOQA
from sphinx.util.typing import RoleFunction, TitleGetter # NOQA
builtin_extensions = (
'sphinx.addnodes',
'sphinx.builders.changes',
'sphinx.builders.epub3',
'sphinx.builders.dirhtml',
'sphinx.builders.dummy',
'sphinx.builders.gettext',
'sphinx.builders.html',
'sphinx.builders.latex',
'sphinx.builders.linkcheck',
'sphinx.builders.manpage',
'sphinx.builders.singlehtml',
'sphinx.builders.texinfo',
'sphinx.builders.text',
'sphinx.builders.xml',
'sphinx.config',
'sphinx.domains.c',
'sphinx.domains.changeset',
'sphinx.domains.cpp',
'sphinx.domains.javascript',
'sphinx.domains.math',
'sphinx.domains.python',
'sphinx.domains.rst',
'sphinx.domains.std',
'sphinx.directives',
'sphinx.directives.code',
'sphinx.directives.other',
'sphinx.directives.patches',
'sphinx.extension',
'sphinx.parsers',
'sphinx.registry',
'sphinx.roles',
'sphinx.transforms',
'sphinx.transforms.compact_bullet_list',
'sphinx.transforms.i18n',
'sphinx.transforms.references',
'sphinx.transforms.post_transforms',
'sphinx.transforms.post_transforms.code',
'sphinx.transforms.post_transforms.images',
'sphinx.transforms.post_transforms.compat',
'sphinx.util.compat',
'sphinx.versioning',
# collectors should be loaded by specific order
'sphinx.environment.collectors.dependencies',
'sphinx.environment.collectors.asset',
'sphinx.environment.collectors.metadata',
'sphinx.environment.collectors.title',
'sphinx.environment.collectors.toctree',
'sphinx.environment.collectors.indexentries',
# 1st party extensions
'sphinxcontrib.applehelp',
'sphinxcontrib.devhelp',
'sphinxcontrib.htmlhelp',
'sphinxcontrib.serializinghtml',
'sphinxcontrib.qthelp',
# Strictly, alabaster theme is not a builtin extension,
# but it is loaded automatically to use it as default theme.
'alabaster',
)
ENV_PICKLE_FILENAME = 'environment.pickle'
logger = logging.getLogger(__name__)
[文档]class Sphinx:
"""The main application class and extensibility interface.
:ivar srcdir: Directory containing source.
:ivar confdir: Directory containing ``conf.py``.
:ivar doctreedir: Directory for storing pickled doctrees.
:ivar outdir: Directory for storing build documents.
"""
def __init__(self, srcdir, confdir, outdir, doctreedir, buildername,
confoverrides=None, status=sys.stdout, warning=sys.stderr,
freshenv=False, warningiserror=False, tags=None, verbosity=0,
parallel=0, keep_going=False):
# type: (str, str, str, str, str, Dict, IO, IO, bool, bool, List[str], int, int, bool) -> None # NOQA
self.phase = BuildPhase.INITIALIZATION
self.verbosity = verbosity
self.extensions = {} # type: Dict[str, Extension]
self.builder = None # type: Builder
self.env = None # type: BuildEnvironment
self.project = None # type: Project
self.registry = SphinxComponentRegistry()
self.html_themes = {} # type: Dict[str, str]
# validate provided directories
self.srcdir = abspath(srcdir)
self.outdir = abspath(outdir)
self.doctreedir = abspath(doctreedir)
self.confdir = confdir
if self.confdir: # confdir is optional
self.confdir = abspath(self.confdir)
if not path.isfile(path.join(self.confdir, 'conf.py')):
raise ApplicationError(__("config directory doesn't contain a "
"conf.py file (%s)") % confdir)
if not path.isdir(self.srcdir):
raise ApplicationError(__('Cannot find source directory (%s)') %
self.srcdir)
if self.srcdir == self.outdir:
raise ApplicationError(__('Source directory and destination '
'directory cannot be identical'))
self.parallel = parallel
if status is None:
self._status = StringIO() # type: IO
self.quiet = True
else:
self._status = status
self.quiet = False
if warning is None:
self._warning = StringIO() # type: IO
else:
self._warning = warning
self._warncount = 0
self.keep_going = warningiserror and keep_going
if self.keep_going:
self.warningiserror = False
else:
self.warningiserror = warningiserror
logging.setup(self, self._status, self._warning)
self.events = EventManager()
# keep last few messages for traceback
# This will be filled by sphinx.util.logging.LastMessagesWriter
self.messagelog = deque(maxlen=10) # type: deque
# say hello to the world
logger.info(bold(__('Running Sphinx v%s') % sphinx.__display_version__))
# status code for command-line application
self.statuscode = 0
# read config
self.tags = Tags(tags)
if self.confdir is None:
self.config = Config({}, confoverrides or {})
else:
self.config = Config.read(self.confdir, confoverrides or {}, self.tags)
# initialize some limited config variables before initialize i18n and loading
# extensions
self.config.pre_init_values()
# set up translation infrastructure
self._init_i18n()
# check the Sphinx version if requested
if self.config.needs_sphinx and self.config.needs_sphinx > sphinx.__display_version__:
raise VersionRequirementError(
__('This project needs at least Sphinx v%s and therefore cannot '
'be built with this version.') % self.config.needs_sphinx)
# set confdir to srcdir if -C given (!= no confdir); a few pieces
# of code expect a confdir to be set
if self.confdir is None:
self.confdir = self.srcdir
# load all built-in extension modules
for extension in builtin_extensions:
self.setup_extension(extension)
# load all user-given extension modules
for extension in self.config.extensions:
self.setup_extension(extension)
# preload builder module (before init config values)
self.preload_builder(buildername)
if not path.isdir(outdir):
with progress_message(__('making output directory')):
ensuredir(outdir)
# the config file itself can be an extension
if self.config.setup:
prefix = __('while setting up extension %s:') % "conf.py"
with prefixed_warnings(prefix):
if callable(self.config.setup):
self.config.setup(self)
else:
raise ConfigError(
__("'setup' as currently defined in conf.py isn't a Python callable. "
"Please modify its definition to make it a callable function. "
"This is needed for conf.py to behave as a Sphinx extension.")
)
# now that we know all config values, collect them from conf.py
self.config.init_values()
self.emit('config-inited', self.config)
# create the project
self.project = Project(self.srcdir, self.config.source_suffix)
# create the builder
self.builder = self.create_builder(buildername)
# set up the build environment
self._init_env(freshenv)
# set up the builder
self._init_builder()
def _init_i18n(self):
# type: () -> None
"""Load translated strings from the configured localedirs if enabled in
the configuration.
"""
if self.config.language is None:
self.translator, has_translation = locale.init([], None)
else:
logger.info(bold(__('loading translations [%s]... ') % self.config.language),
nonl=True)
# compile mo files if sphinx.po file in user locale directories are updated
repo = CatalogRepository(self.srcdir, self.config.locale_dirs,
self.config.language, self.config.source_encoding)
for catalog in repo.catalogs:
if catalog.domain == 'sphinx' and catalog.is_outdated():
catalog.write_mo(self.config.language)
locale_dirs = [None, path.join(package_dir, 'locale')] + list(repo.locale_dirs)
self.translator, has_translation = locale.init(locale_dirs, self.config.language)
if has_translation or self.config.language == 'en':
# "en" never needs to be translated
logger.info(__('done'))
else:
logger.info(__('not available for built-in messages'))
def _init_env(self, freshenv):
# type: (bool) -> None
filename = path.join(self.doctreedir, ENV_PICKLE_FILENAME)
if freshenv or not os.path.exists(filename):
self.env = BuildEnvironment()
self.env.setup(self)
self.env.find_files(self.config, self.builder)
else:
try:
with progress_message(__('loading pickled environment')):
with open(filename, 'rb') as f:
self.env = pickle.load(f)
self.env.setup(self)
except Exception as err:
logger.info(__('failed: %s'), err)
self._init_env(freshenv=True)
def preload_builder(self, name):
# type: (str) -> None
self.registry.preload_builder(self, name)
def create_builder(self, name):
# type: (str) -> Builder
if name is None:
logger.info(__('No builder selected, using default: html'))
name = 'html'
return self.registry.create_builder(self, name)
def _init_builder(self):
# type: () -> None
self.builder.set_environment(self.env)
self.builder.init()
self.emit('builder-inited')
# ---- main "build" method -------------------------------------------------
def build(self, force_all=False, filenames=None):
# type: (bool, List[str]) -> None
self.phase = BuildPhase.READING
try:
if force_all:
self.builder.compile_all_catalogs()
self.builder.build_all()
elif filenames:
self.builder.compile_specific_catalogs(filenames)
self.builder.build_specific(filenames)
else:
self.builder.compile_update_catalogs()
self.builder.build_update()
if self._warncount and self.keep_going:
self.statuscode = 1
status = (self.statuscode == 0 and
__('succeeded') or __('finished with problems'))
if self._warncount:
logger.info(bold(__('build %s, %s warning.',
'build %s, %s warnings.', self._warncount) %
(status, self._warncount)))
else:
logger.info(bold(__('build %s.') % status))
if self.statuscode == 0 and self.builder.epilog:
logger.info('')
logger.info(self.builder.epilog % {
'outdir': relpath(self.outdir),
'project': self.config.project
})
except Exception as err:
# delete the saved env to force a fresh build next time
envfile = path.join(self.doctreedir, ENV_PICKLE_FILENAME)
if path.isfile(envfile):
os.unlink(envfile)
self.emit('build-finished', err)
raise
else:
self.emit('build-finished', None)
self.builder.cleanup()
# ---- general extensibility interface -------------------------------------
[文档] def setup_extension(self, extname):
# type: (str) -> None
"""Import and setup a Sphinx extension module.
Load the extension given by the module *name*. Use this if your
extension needs the features provided by another extension. No-op if
called twice.
"""
logger.debug('[app] setting up extension: %r', extname)
self.registry.load_extension(self, extname)
[文档] def require_sphinx(self, version):
# type: (str) -> None
"""Check the Sphinx version if requested.
Compare *version* (which must be a ``major.minor`` version string, e.g.
``'1.1'``) with the version of the running Sphinx, and abort the build
when it is too old.
.. versionadded:: 1.0
"""
if version > sphinx.__display_version__[:3]:
raise VersionRequirementError(version)
def import_object(self, objname, source=None):
# type: (str, str) -> Any
"""Import an object from a ``module.name`` string.
.. deprecated:: 1.8
Use ``sphinx.util.import_object()`` instead.
"""
warnings.warn('app.import_object() is deprecated. '
'Use sphinx.util.add_object_type() instead.',
RemovedInSphinx30Warning, stacklevel=2)
return import_object(objname, source=None)
# event interface
[文档] def connect(self, event, callback):
# type: (str, Callable) -> int
"""Register *callback* to be called when *event* is emitted.
For details on available core events and the arguments of callback
functions, please see :ref:`events`.
The method returns a "listener ID" that can be used as an argument to
:meth:`disconnect`.
"""
listener_id = self.events.connect(event, callback)
logger.debug('[app] connecting event %r: %r [id=%s]', event, callback, listener_id)
return listener_id
[文档] def disconnect(self, listener_id):
# type: (int) -> None
"""Unregister callback by *listener_id*."""
logger.debug('[app] disconnecting event: [id=%s]', listener_id)
self.events.disconnect(listener_id)
[文档] def emit(self, event, *args):
# type: (str, Any) -> List
"""Emit *event* and pass *arguments* to the callback functions.
Return the return values of all callbacks as a list. Do not emit core
Sphinx events in extensions!
"""
try:
logger.debug('[app] emitting event: %r%s', event, repr(args)[:100])
except Exception:
# not every object likes to be repr()'d (think
# random stuff coming via autodoc)
pass
return self.events.emit(event, self, *args)
[文档] def emit_firstresult(self, event, *args):
# type: (str, Any) -> Any
"""Emit *event* and pass *arguments* to the callback functions.
Return the result of the first callback that doesn't return ``None``.
.. versionadded:: 0.5
"""
return self.events.emit_firstresult(event, self, *args)
# registering addon parts
[文档] def add_builder(self, builder, override=False):
# type: (Type[Builder], bool) -> None
"""Register a new builder.
*builder* must be a class that inherits from
:class:`~sphinx.builders.Builder`.
.. versionchanged:: 1.8
Add *override* keyword.
"""
self.registry.add_builder(builder, override=override)
# TODO(stephenfin): Describe 'types' parameter
[文档] def add_config_value(self, name, default, rebuild, types=()):
# type: (str, Any, Union[bool, str], Any) -> None
"""Register a configuration value.
This is necessary for Sphinx to recognize new values and set default
values accordingly. The *name* should be prefixed with the extension
name, to avoid clashes. The *default* value can be any Python object.
The string value *rebuild* must be one of those values:
* ``'env'`` if a change in the setting only takes effect when a
document is parsed -- this means that the whole environment must be
rebuilt.
* ``'html'`` if a change in the setting needs a full rebuild of HTML
documents.
* ``''`` if a change in the setting will not need any special rebuild.
.. versionchanged:: 0.6
Changed *rebuild* from a simple boolean (equivalent to ``''`` or
``'env'``) to a string. However, booleans are still accepted and
converted internally.
.. versionchanged:: 0.4
If the *default* value is a callable, it will be called with the
config object as its argument in order to get the default value.
This can be used to implement config values whose default depends on
other values.
"""
logger.debug('[app] adding config value: %r',
(name, default, rebuild) + ((types,) if types else ())) # type: ignore
if rebuild in (False, True):
rebuild = rebuild and 'env' or ''
self.config.add(name, default, rebuild, types)
[文档] def add_event(self, name):
# type: (str) -> None
"""Register an event called *name*.
This is needed to be able to emit it.
"""
logger.debug('[app] adding event: %r', name)
self.events.add(name)
[文档] def set_translator(self, name, translator_class, override=False):
# type: (str, Type[nodes.NodeVisitor], bool) -> None
"""Register or override a Docutils translator class.
This is used to register a custom output translator or to replace a
builtin translator. This allows extensions to use custom translator
and define custom nodes for the translator (see :meth:`add_node`).
.. versionadded:: 1.3
.. versionchanged:: 1.8
Add *override* keyword.
"""
self.registry.add_translator(name, translator_class, override=override)
[文档] def add_node(self, node, override=False, **kwds):
# type: (Type[nodes.Element], bool, Any) -> None
"""Register a Docutils node class.
This is necessary for Docutils internals. It may also be used in the
future to validate nodes in the parsed documents.
Node visitor functions for the Sphinx HTML, LaTeX, text and manpage
writers can be given as keyword arguments: the keyword should be one or
more of ``'html'``, ``'latex'``, ``'text'``, ``'man'``, ``'texinfo'``
or any other supported translators, the value a 2-tuple of ``(visit,
depart)`` methods. ``depart`` can be ``None`` if the ``visit``
function raises :exc:`docutils.nodes.SkipNode`. Example:
.. code-block:: python
class math(docutils.nodes.Element): pass
def visit_math_html(self, node):
self.body.append(self.starttag(node, 'math'))
def depart_math_html(self, node):
self.body.append('</math>')
app.add_node(math, html=(visit_math_html, depart_math_html))
Obviously, translators for which you don't specify visitor methods will
choke on the node when encountered in a document to translate.
.. versionchanged:: 0.5
Added the support for keyword arguments giving visit functions.
"""
logger.debug('[app] adding node: %r', (node, kwds))
if not override and docutils.is_node_registered(node):
logger.warning(__('node class %r is already registered, '
'its visitors will be overridden'),
node.__name__, type='app', subtype='add_node')
docutils.register_node(node)
self.registry.add_translation_handlers(node, **kwds)
[文档] def add_enumerable_node(self, node, figtype, title_getter=None, override=False, **kwds):
# type: (Type[nodes.Element], str, TitleGetter, bool, Any) -> None
"""Register a Docutils node class as a numfig target.
Sphinx numbers the node automatically. And then the users can refer it
using :rst:role:`numref`.
*figtype* is a type of enumerable nodes. Each figtypes have individual
numbering sequences. As a system figtypes, ``figure``, ``table`` and
``code-block`` are defined. It is able to add custom nodes to these
default figtypes. It is also able to define new custom figtype if new
figtype is given.
*title_getter* is a getter function to obtain the title of node. It
takes an instance of the enumerable node, and it must return its title
as string. The title is used to the default title of references for
:rst:role:`ref`. By default, Sphinx searches
``docutils.nodes.caption`` or ``docutils.nodes.title`` from the node as
a title.
Other keyword arguments are used for node visitor functions. See the
:meth:`.Sphinx.add_node` for details.
.. versionadded:: 1.4
"""
self.registry.add_enumerable_node(node, figtype, title_getter, override=override)
self.add_node(node, override=override, **kwds)
@property
def enumerable_nodes(self):
# type: () -> Dict[Type[nodes.Node], Tuple[str, TitleGetter]]
warnings.warn('app.enumerable_nodes() is deprecated. '
'Use app.get_domain("std").enumerable_nodes instead.',
RemovedInSphinx30Warning, stacklevel=2)
return self.registry.enumerable_nodes
[文档] def add_directive(self, name, obj, content=None, arguments=None, override=False, **options): # NOQA
# type: (str, Any, bool, Tuple[int, int, bool], bool, Any) -> None
"""Register a Docutils directive.
*name* must be the prospective directive name. There are two possible
ways to write a directive:
- In the docutils 0.4 style, *obj* is the directive function.
*content*, *arguments* and *options* are set as attributes on the
function and determine whether the directive has content, arguments
and options, respectively. **This style is deprecated.**
- In the docutils 0.5 style, *obj* is the directive class.
It must already have attributes named *has_content*,
*required_arguments*, *optional_arguments*,
*final_argument_whitespace* and *option_spec* that correspond to the
options for the function way. See `the Docutils docs
<http://docutils.sourceforge.net/docs/howto/rst-directives.html>`_
for details.
The directive class must inherit from the class
``docutils.parsers.rst.Directive``.
For example, the (already existing) :rst:dir:`literalinclude` directive
would be added like this:
.. code-block:: python
from docutils.parsers.rst import Directive, directives
class LiteralIncludeDirective(Directive):
has_content = True
required_arguments = 1
optional_arguments = 0
final_argument_whitespace = True
option_spec = {
'class': directives.class_option,
'name': directives.unchanged,
}
def run(self):
...
add_directive('literalinclude', LiteralIncludeDirective)
.. versionchanged:: 0.6
Docutils 0.5-style directive classes are now supported.
.. deprecated:: 1.8
Docutils 0.4-style (function based) directives support is deprecated.
.. versionchanged:: 1.8
Add *override* keyword.
"""
logger.debug('[app] adding directive: %r',
(name, obj, content, arguments, options))
if not override and docutils.is_directive_registered(name):
logger.warning(__('directive %r is already registered, it will be overridden'),
name, type='app', subtype='add_directive')
if not isclass(obj) or not issubclass(obj, Directive):
directive = directive_helper(obj, content, arguments, **options)
docutils.register_directive(name, directive)
else:
docutils.register_directive(name, obj)
[文档] def add_role(self, name, role, override=False):
# type: (str, Any, bool) -> None
"""Register a Docutils role.
*name* must be the role name that occurs in the source, *role* the role
function. Refer to the `Docutils documentation
<http://docutils.sourceforge.net/docs/howto/rst-roles.html>`_ for
more information.
.. versionchanged:: 1.8
Add *override* keyword.
"""
logger.debug('[app] adding role: %r', (name, role))
if not override and docutils.is_role_registered(name):
logger.warning(__('role %r is already registered, it will be overridden'),
name, type='app', subtype='add_role')
docutils.register_role(name, role)
[文档] def add_generic_role(self, name, nodeclass, override=False):
# type: (str, Any, bool) -> None
"""Register a generic Docutils role.
Register a Docutils role that does nothing but wrap its contents in the
node given by *nodeclass*.
.. versionadded:: 0.6
.. versionchanged:: 1.8
Add *override* keyword.
"""
# Don't use ``roles.register_generic_role`` because it uses
# ``register_canonical_role``.
logger.debug('[app] adding generic role: %r', (name, nodeclass))
if not override and docutils.is_role_registered(name):
logger.warning(__('role %r is already registered, it will be overridden'),
name, type='app', subtype='add_generic_role')
role = roles.GenericRole(name, nodeclass)
docutils.register_role(name, role)
[文档] def add_domain(self, domain, override=False):
# type: (Type[Domain], bool) -> None
"""Register a domain.
Make the given *domain* (which must be a class; more precisely, a
subclass of :class:`~sphinx.domains.Domain`) known to Sphinx.
.. versionadded:: 1.0
.. versionchanged:: 1.8
Add *override* keyword.
"""
self.registry.add_domain(domain, override=override)
def override_domain(self, domain):
# type: (Type[Domain]) -> None
"""Override a registered domain.
Make the given *domain* class known to Sphinx, assuming that there is
already a domain with its ``.name``. The new domain must be a subclass
of the existing one.
.. versionadded:: 1.0
.. deprecated:: 1.8
Integrated to :meth:`add_domain`.
"""
warnings.warn('app.override_domain() is deprecated. '
'Use app.add_domain() with override option instead.',
RemovedInSphinx30Warning, stacklevel=2)
self.registry.add_domain(domain, override=True)
[文档] def add_directive_to_domain(self, domain, name, obj, has_content=None, argument_spec=None,
override=False, **option_spec):
# type: (str, str, Any, bool, Any, bool, Any) -> None
"""Register a Docutils directive in a domain.
Like :meth:`add_directive`, but the directive is added to the domain
named *domain*.
.. versionadded:: 1.0
.. versionchanged:: 1.8
Add *override* keyword.
"""
self.registry.add_directive_to_domain(domain, name, obj,
has_content, argument_spec, override=override,
**option_spec)
[文档] def add_role_to_domain(self, domain, name, role, override=False):
# type: (str, str, Union[RoleFunction, XRefRole], bool) -> None
"""Register a Docutils role in a domain.
Like :meth:`add_role`, but the role is added to the domain named
*domain*.
.. versionadded:: 1.0
.. versionchanged:: 1.8
Add *override* keyword.
"""
self.registry.add_role_to_domain(domain, name, role, override=override)
[文档] def add_index_to_domain(self, domain, index, override=False):
# type: (str, Type[Index], bool) -> None
"""Register a custom index for a domain.
Add a custom *index* class to the domain named *domain*. *index* must
be a subclass of :class:`~sphinx.domains.Index`.
.. versionadded:: 1.0
.. versionchanged:: 1.8
Add *override* keyword.
"""
self.registry.add_index_to_domain(domain, index)
[文档] def add_object_type(self, directivename, rolename, indextemplate='',
parse_node=None, ref_nodeclass=None, objname='',
doc_field_types=[], override=False):
# type: (str, str, str, Callable, Type[nodes.TextElement], str, List, bool) -> None
"""Register a new object type.
This method is a very convenient way to add a new :term:`object` type
that can be cross-referenced. It will do this:
- Create a new directive (called *directivename*) for documenting an
object. It will automatically add index entries if *indextemplate*
is nonempty; if given, it must contain exactly one instance of
``%s``. See the example below for how the template will be
interpreted.
- Create a new role (called *rolename*) to cross-reference to these
object descriptions.
- If you provide *parse_node*, it must be a function that takes a
string and a docutils node, and it must populate the node with
children parsed from the string. It must then return the name of the
item to be used in cross-referencing and index entries. See the
:file:`conf.py` file in the source for this documentation for an
example.
- The *objname* (if not given, will default to *directivename*) names
the type of object. It is used when listing objects, e.g. in search
results.
For example, if you have this call in a custom Sphinx extension::
app.add_object_type('directive', 'dir', 'pair: %s; directive')
you can use this markup in your documents::
.. rst:directive:: function
Document a function.
<...>
See also the :rst:dir:`function` directive.
For the directive, an index entry will be generated as if you had prepended ::
.. index:: pair: function; directive
The reference node will be of class ``literal`` (so it will be rendered
in a proportional font, as appropriate for code) unless you give the
*ref_nodeclass* argument, which must be a docutils node class. Most
useful are ``docutils.nodes.emphasis`` or ``docutils.nodes.strong`` --
you can also use ``docutils.nodes.generated`` if you want no further
text decoration. If the text should be treated as literal (e.g. no
smart quote replacement), but not have typewriter styling, use
``sphinx.addnodes.literal_emphasis`` or
``sphinx.addnodes.literal_strong``.
For the role content, you have the same syntactical possibilities as
for standard Sphinx roles (see :ref:`xref-syntax`).
.. versionchanged:: 1.8
Add *override* keyword.
"""
self.registry.add_object_type(directivename, rolename, indextemplate, parse_node,
ref_nodeclass, objname, doc_field_types,
override=override)
[文档] def add_crossref_type(self, directivename, rolename, indextemplate='',
ref_nodeclass=None, objname='', override=False):
# type: (str, str, str, Type[nodes.TextElement], str, bool) -> None
"""Register a new crossref object type.
This method is very similar to :meth:`add_object_type` except that the
directive it generates must be empty, and will produce no output.
That means that you can add semantic targets to your sources, and refer
to them using custom roles instead of generic ones (like
:rst:role:`ref`). Example call::
app.add_crossref_type('topic', 'topic', 'single: %s',
docutils.nodes.emphasis)
Example usage::
.. topic:: application API
The application API
-------------------
Some random text here.
See also :topic:`this section <application API>`.
(Of course, the element following the ``topic`` directive needn't be a
section.)
.. versionchanged:: 1.8
Add *override* keyword.
"""
self.registry.add_crossref_type(directivename, rolename,
indextemplate, ref_nodeclass, objname,
override=override)
[文档] def add_post_transform(self, transform):
# type: (Type[Transform]) -> None
"""Register a Docutils transform to be applied before writing.
Add the standard docutils :class:`Transform` subclass *transform* to
the list of transforms that are applied before Sphinx writes a
document.
"""
self.registry.add_post_transform(transform)
def add_javascript(self, filename, **kwargs):
# type: (str, **str) -> None
"""An alias of :meth:`add_js_file`."""
warnings.warn('The app.add_javascript() is deprecated. '
'Please use app.add_js_file() instead.',
RemovedInSphinx40Warning, stacklevel=2)
self.add_js_file(filename, **kwargs)
[文档] def add_js_file(self, filename, **kwargs):
# type: (str, **str) -> None
"""Register a JavaScript file to include in the HTML output.
Add *filename* to the list of JavaScript files that the default HTML
template will include. The filename must be relative to the HTML
static path , or a full URI with scheme. The keyword arguments are
also accepted for attributes of ``<script>`` tag.
Example::
app.add_js_file('example.js')
# => <script src="_static/example.js"></script>
app.add_js_file('example.js', async="async")
# => <script src="_static/example.js" async="async"></script>
.. versionadded:: 0.5
.. versionchanged:: 1.8
Renamed from ``app.add_javascript()``.
And it allows keyword arguments as attributes of script tag.
"""
self.registry.add_js_file(filename, **kwargs)
if hasattr(self.builder, 'add_js_file'):
self.builder.add_js_file(filename, **kwargs) # type: ignore
[文档] def add_css_file(self, filename, **kwargs):
# type: (str, **str) -> None
"""Register a stylesheet to include in the HTML output.
Add *filename* to the list of CSS files that the default HTML template
will include. The filename must be relative to the HTML static path,
or a full URI with scheme. The keyword arguments are also accepted for
attributes of ``<link>`` tag.
Example::
app.add_css_file('custom.css')
# => <link rel="stylesheet" href="_static/custom.css" type="text/css" />
app.add_css_file('print.css', media='print')
# => <link rel="stylesheet" href="_static/print.css"
# type="text/css" media="print" />
app.add_css_file('fancy.css', rel='alternate stylesheet', title='fancy')
# => <link rel="alternate stylesheet" href="_static/fancy.css"
# type="text/css" title="fancy" />
.. versionadded:: 1.0
.. versionchanged:: 1.6
Optional ``alternate`` and/or ``title`` attributes can be supplied
with the *alternate* (of boolean type) and *title* (a string)
arguments. The default is no title and *alternate* = ``False``. For
more information, refer to the `documentation
<https://mdn.io/Web/CSS/Alternative_style_sheets>`__.
.. versionchanged:: 1.8
Renamed from ``app.add_stylesheet()``.
And it allows keyword arguments as attributes of link tag.
"""
logger.debug('[app] adding stylesheet: %r', filename)
self.registry.add_css_files(filename, **kwargs)
if hasattr(self.builder, 'add_css_file'):
self.builder.add_css_file(filename, **kwargs) # type: ignore
def add_stylesheet(self, filename, alternate=False, title=None):
# type: (str, bool, str) -> None
"""An alias of :meth:`add_css_file`."""
warnings.warn('The app.add_stylesheet() is deprecated. '
'Please use app.add_css_file() instead.',
RemovedInSphinx40Warning, stacklevel=2)
attributes = {} # type: Dict[str, str]
if alternate:
attributes['rel'] = 'alternate stylesheet'
else:
attributes['rel'] = 'stylesheet'
if title:
attributes['title'] = title
self.add_css_file(filename, **attributes)
[文档] def add_latex_package(self, packagename, options=None):
# type: (str, str) -> None
r"""Register a package to include in the LaTeX source code.
Add *packagename* to the list of packages that LaTeX source code will
include. If you provide *options*, it will be taken to `\usepackage`
declaration.
.. code-block:: python
app.add_latex_package('mypackage')
# => \usepackage{mypackage}
app.add_latex_package('mypackage', 'foo,bar')
# => \usepackage[foo,bar]{mypackage}
.. versionadded:: 1.3
"""
self.registry.add_latex_package(packagename, options)
[文档] def add_lexer(self, alias, lexer):
# type: (str, Any) -> None
"""Register a new lexer for source code.
Use *lexer*, which must be an instance of a Pygments lexer class, to
highlight code blocks with the given language *alias*.
.. versionadded:: 0.6
"""
logger.debug('[app] adding lexer: %r', (alias, lexer))
from sphinx.highlighting import lexers
if lexers is None:
return
lexers[alias] = lexer
[文档] def add_autodocumenter(self, cls):
# type: (Any) -> None
"""Register a new documenter class for the autodoc extension.
Add *cls* as a new documenter class for the :mod:`sphinx.ext.autodoc`
extension. It must be a subclass of
:class:`sphinx.ext.autodoc.Documenter`. This allows to auto-document
new types of objects. See the source of the autodoc module for
examples on how to subclass :class:`Documenter`.
.. todo:: Add real docs for Documenter and subclassing
.. versionadded:: 0.6
"""
logger.debug('[app] adding autodocumenter: %r', cls)
from sphinx.ext.autodoc.directive import AutodocDirective
self.registry.add_documenter(cls.objtype, cls)
self.add_directive('auto' + cls.objtype, AutodocDirective)
[文档] def add_autodoc_attrgetter(self, typ, getter):
# type: (Type, Callable[[Any, str, Any], Any]) -> None
"""Register a new ``getattr``-like function for the autodoc extension.
Add *getter*, which must be a function with an interface compatible to
the :func:`getattr` builtin, as the autodoc attribute getter for
objects that are instances of *typ*. All cases where autodoc needs to
get an attribute of a type are then handled by this function instead of
:func:`getattr`.
.. versionadded:: 0.6
"""
logger.debug('[app] adding autodoc attrgetter: %r', (typ, getter))
self.registry.add_autodoc_attrgetter(typ, getter)
[文档] def add_search_language(self, cls):
# type: (Any) -> None
"""Register a new language for the HTML search index.
Add *cls*, which must be a subclass of
:class:`sphinx.search.SearchLanguage`, as a support language for
building the HTML full-text search index. The class must have a *lang*
attribute that indicates the language it should be used for. See
:confval:`html_search_language`.
.. versionadded:: 1.1
"""
logger.debug('[app] adding search language: %r', cls)
from sphinx.search import languages, SearchLanguage
assert issubclass(cls, SearchLanguage)
languages[cls.lang] = cls
[文档] def add_source_suffix(self, suffix, filetype, override=False):
# type: (str, str, bool) -> None
"""Register a suffix of source files.
Same as :confval:`source_suffix`. The users can override this
using the setting.
.. versionadded:: 1.8
"""
self.registry.add_source_suffix(suffix, filetype, override=override)
[文档] def add_source_parser(self, *args, **kwargs):
# type: (Any, Any) -> None
"""Register a parser class.
.. versionadded:: 1.4
.. versionchanged:: 1.8
*suffix* argument is deprecated. It only accepts *parser* argument.
Use :meth:`add_source_suffix` API to register suffix instead.
.. versionchanged:: 1.8
Add *override* keyword.
"""
self.registry.add_source_parser(*args, **kwargs)
[文档] def add_env_collector(self, collector):
# type: (Type[EnvironmentCollector]) -> None
"""Register an environment collector class.
Refer to :ref:`collector-api`.
.. versionadded:: 1.6
"""
logger.debug('[app] adding environment collector: %r', collector)
collector().enable(self)
[文档] def add_html_theme(self, name, theme_path):
# type: (str, str) -> None
"""Register a HTML Theme.
The *name* is a name of theme, and *path* is a full path to the theme
(refs: :ref:`distribute-your-theme`).
.. versionadded:: 1.6
"""
logger.debug('[app] adding HTML theme: %r, %r', name, theme_path)
self.html_themes[name] = theme_path
[文档] def add_html_math_renderer(self, name, inline_renderers=None, block_renderers=None):
# type: (str, Tuple[Callable, Callable], Tuple[Callable, Callable]) -> None
"""Register a math renderer for HTML.
The *name* is a name of math renderer. Both *inline_renderers* and
*block_renderers* are used as visitor functions for the HTML writer:
the former for inline math node (``nodes.math``), the latter for
block math node (``nodes.math_block``). Regarding visitor functions,
see :meth:`add_node` for details.
.. versionadded:: 1.8
"""
self.registry.add_html_math_renderer(name, inline_renderers, block_renderers)
[文档] def add_message_catalog(self, catalog, locale_dir):
# type: (str, str) -> None
"""Register a message catalog.
The *catalog* is a name of catalog, and *locale_dir* is a base path
of message catalog. For more details, see
:func:`sphinx.locale.get_translation()`.
.. versionadded:: 1.8
"""
locale.init([locale_dir], self.config.language, catalog)
locale.init_console(locale_dir, catalog)
# ---- other methods -------------------------------------------------
[文档] def is_parallel_allowed(self, typ):
# type: (str) -> bool
"""Check parallel processing is allowed or not.
``typ`` is a type of processing; ``'read'`` or ``'write'``.
"""
if typ == 'read':
attrname = 'parallel_read_safe'
message = __("the %s extension does not declare if it is safe "
"for parallel reading, assuming it isn't - please "
"ask the extension author to check and make it "
"explicit")
elif typ == 'write':
attrname = 'parallel_write_safe'
message = __("the %s extension does not declare if it is safe "
"for parallel writing, assuming it isn't - please "
"ask the extension author to check and make it "
"explicit")
else:
raise ValueError('parallel type %s is not supported' % typ)
for ext in self.extensions.values():
allowed = getattr(ext, attrname, None)
if allowed is None:
logger.warning(message, ext.name)
logger.warning(__('doing serial %s'), typ)
return False
elif not allowed:
return False
return True
@property
def _setting_up_extension(self):
# type: () -> List[str]
warnings.warn('app._setting_up_extension is deprecated.',
RemovedInSphinx30Warning)
return ['?']
[文档]class TemplateBridge:
"""
This class defines the interface for a "template bridge", that is, a class
that renders templates given a template name and a context.
"""
[文档] def init(self, builder, theme=None, dirs=None):
# type: (Builder, Theme, List[str]) -> None
"""Called by the builder to initialize the template system.
*builder* is the builder object; you'll probably want to look at the
value of ``builder.config.templates_path``.
*theme* is a :class:`sphinx.theming.Theme` object or None; in the latter
case, *dirs* can be list of fixed directories to look for templates.
"""
raise NotImplementedError('must be implemented in subclasses')
[文档] def newest_template_mtime(self):
# type: () -> float
"""Called by the builder to determine if output files are outdated
because of template changes. Return the mtime of the newest template
file that was changed. The default implementation returns ``0``.
"""
return 0
[文档] def render(self, template, context):
# type: (str, Dict) -> None
"""Called by the builder to render a template given as a filename with
a specified context (a Python dictionary).
"""
raise NotImplementedError('must be implemented in subclasses')
[文档] def render_string(self, template, context):
# type: (str, Dict) -> str
"""Called by the builder to render a template given as a string with a
specified context (a Python dictionary).
"""
raise NotImplementedError('must be implemented in subclasses')
