/usr/lib/python2.7/dist-packages/sphinx/application.py is in python-sphinx 1.2.2+dfsg-1ubuntu1.
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"""
sphinx.application
~~~~~~~~~~~~~~~~~~
Sphinx application object.
Gracefully adapted from the TextPress system by Armin.
:copyright: Copyright 2007-2014 by the Sphinx team, see AUTHORS.
:license: BSD, see LICENSE for details.
"""
import os
import sys
import types
import posixpath
from os import path
from cStringIO import StringIO
from docutils import nodes
from docutils.parsers.rst import convert_directive_function, \
directives, roles
import sphinx
from sphinx import package_dir, locale
from sphinx.roles import XRefRole
from sphinx.config import Config
from sphinx.errors import SphinxError, SphinxWarning, ExtensionError, \
VersionRequirementError
from sphinx.domains import ObjType, BUILTIN_DOMAINS
from sphinx.domains.std import GenericObject, Target, StandardDomain
from sphinx.builders import BUILTIN_BUILDERS
from sphinx.environment import BuildEnvironment, SphinxStandaloneReader
from sphinx.util import pycompat # imported for side-effects
from sphinx.util.tags import Tags
from sphinx.util.osutil import ENOENT
from sphinx.util.console import bold, lightgray, darkgray
# List of all known core events. Maps name to arguments description.
events = {
'builder-inited': '',
'env-get-outdated': 'env, added, changed, removed',
'env-purge-doc': 'env, docname',
'source-read': 'docname, source text',
'doctree-read': 'the doctree before being pickled',
'missing-reference': 'env, node, contnode',
'doctree-resolved': 'doctree, docname',
'env-updated': 'env',
'html-collect-pages': 'builder',
'html-page-context': 'pagename, context, doctree or None',
'build-finished': 'exception',
}
CONFIG_FILENAME = 'conf.py'
ENV_PICKLE_FILENAME = 'environment.pickle'
class Sphinx(object):
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):
self.verbosity = verbosity
self.next_listener_id = 0
self._extensions = {}
self._listeners = {}
self.domains = BUILTIN_DOMAINS.copy()
self.builderclasses = BUILTIN_BUILDERS.copy()
self.builder = None
self.env = None
self.srcdir = srcdir
self.confdir = confdir
self.outdir = outdir
self.doctreedir = doctreedir
self.parallel = parallel
if status is None:
self._status = StringIO()
self.quiet = True
else:
self._status = status
self.quiet = False
if warning is None:
self._warning = StringIO()
else:
self._warning = warning
self._warncount = 0
self.warningiserror = warningiserror
self._events = events.copy()
# say hello to the world
self.info(bold('Running Sphinx v%s' % sphinx.__version__))
# status code for command-line application
self.statuscode = 0
# read config
self.tags = Tags(tags)
self.config = Config(confdir, CONFIG_FILENAME,
confoverrides or {}, self.tags)
self.config.check_unicode(self.warn)
# 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
# backwards compatibility: activate old C markup
self.setup_extension('sphinx.ext.oldcmarkup')
# load all user-given extension modules
for extension in self.config.extensions:
self.setup_extension(extension)
# the config file itself can be an extension
if self.config.setup:
self.config.setup(self)
# now that we know all config values, collect them from conf.py
self.config.init_values()
# check the Sphinx version if requested
if self.config.needs_sphinx and \
self.config.needs_sphinx > sphinx.__version__[:3]:
raise VersionRequirementError(
'This project needs at least Sphinx v%s and therefore cannot '
'be built with this version.' % self.config.needs_sphinx)
# set up translation infrastructure
self._init_i18n()
# set up the build environment
self._init_env(freshenv)
# set up the builder
self._init_builder(buildername)
def _init_i18n(self):
"""Load translated strings from the configured localedirs if enabled in
the configuration.
"""
if self.config.language is not None:
self.info(bold('loading translations [%s]... ' %
self.config.language), nonl=True)
locale_dirs = [None, path.join(package_dir, 'locale')] + \
[path.join(self.srcdir, x) for x in self.config.locale_dirs]
else:
locale_dirs = []
self.translator, has_translation = locale.init(locale_dirs,
self.config.language)
if self.config.language is not None:
if has_translation or self.config.language == 'en':
# "en" never needs to be translated
self.info('done')
else:
self.info('not available for built-in messages')
def _init_env(self, freshenv):
if freshenv:
self.env = BuildEnvironment(self.srcdir, self.doctreedir,
self.config)
self.env.find_files(self.config)
for domain in self.domains.keys():
self.env.domains[domain] = self.domains[domain](self.env)
else:
try:
self.info(bold('loading pickled environment... '), nonl=True)
self.env = BuildEnvironment.frompickle(self.config,
path.join(self.doctreedir, ENV_PICKLE_FILENAME))
self.env.domains = {}
for domain in self.domains.keys():
# this can raise if the data version doesn't fit
self.env.domains[domain] = self.domains[domain](self.env)
self.info('done')
except Exception, err:
if type(err) is IOError and err.errno == ENOENT:
self.info('not yet created')
else:
self.info('failed: %s' % err)
return self._init_env(freshenv=True)
self.env.set_warnfunc(self.warn)
def _init_builder(self, buildername):
if buildername is None:
print >>self._status, 'No builder selected, using default: html'
buildername = 'html'
if buildername not in self.builderclasses:
raise SphinxError('Builder name %s not registered' % buildername)
builderclass = self.builderclasses[buildername]
if isinstance(builderclass, tuple):
# builtin builder
mod, cls = builderclass
builderclass = getattr(
__import__('sphinx.builders.' + mod, None, None, [cls]), cls)
self.builder = builderclass(self)
self.emit('builder-inited')
# ---- main "build" method -------------------------------------------------
def build(self, force_all=False, filenames=None):
try:
if force_all:
self.builder.build_all()
elif filenames:
self.builder.build_specific(filenames)
else:
self.builder.build_update()
except Exception, 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()
# ---- logging handling ----------------------------------------------------
def _log(self, message, wfile, nonl=False):
try:
wfile.write(message)
except UnicodeEncodeError:
encoding = getattr(wfile, 'encoding', 'ascii') or 'ascii'
wfile.write(message.encode(encoding, 'replace'))
if not nonl:
wfile.write('\n')
if hasattr(wfile, 'flush'):
wfile.flush()
def warn(self, message, location=None, prefix='WARNING: '):
"""Emit a warning.
If *location* is given, it should either be a tuple of (docname, lineno)
or a string describing the location of the warning as well as possible.
*prefix* usually should not be changed.
.. note::
For warnings emitted during parsing, you should use
:meth:`.BuildEnvironment.warn` since that will collect all
warnings during parsing for later output.
"""
if isinstance(location, tuple):
docname, lineno = location
if docname:
location = '%s:%s' % (self.env.doc2path(docname), lineno or '')
else:
location = None
warntext = location and '%s: %s%s\n' % (location, prefix, message) or \
'%s%s\n' % (prefix, message)
if self.warningiserror:
raise SphinxWarning(warntext)
self._warncount += 1
self._log(warntext, self._warning, True)
def info(self, message='', nonl=False):
"""Emit an informational message.
If *nonl* is true, don't emit a newline at the end (which implies that
more info output will follow soon.)
"""
self._log(message, self._status, nonl)
def verbose(self, message, *args, **kwargs):
"""Emit a verbose informational message.
The message will only be emitted for verbosity levels >= 1 (i.e. at
least one ``-v`` option was given).
The message can contain %-style interpolation placeholders, which is
formatted with either the ``*args`` or ``**kwargs`` when output.
"""
if self.verbosity < 1:
return
if args or kwargs:
message = message % (args or kwargs)
self._log(message, self._status)
def debug(self, message, *args, **kwargs):
"""Emit a debug-level informational message.
The message will only be emitted for verbosity levels >= 2 (i.e. at
least two ``-v`` options were given).
The message can contain %-style interpolation placeholders, which is
formatted with either the ``*args`` or ``**kwargs`` when output.
"""
if self.verbosity < 2:
return
if args or kwargs:
message = message % (args or kwargs)
self._log(darkgray(message), self._status)
def debug2(self, message, *args, **kwargs):
"""Emit a lowlevel debug-level informational message.
The message will only be emitted for verbosity level 3 (i.e. three
``-v`` options were given).
The message can contain %-style interpolation placeholders, which is
formatted with either the ``*args`` or ``**kwargs`` when output.
"""
if self.verbosity < 3:
return
if args or kwargs:
message = message % (args or kwargs)
self._log(lightgray(message), self._status)
# ---- general extensibility interface -------------------------------------
def setup_extension(self, extension):
"""Import and setup a Sphinx extension module. No-op if called twice."""
self.debug('[app] setting up extension: %r', extension)
if extension in self._extensions:
return
try:
mod = __import__(extension, None, None, ['setup'])
except ImportError, err:
raise ExtensionError('Could not import extension %s' % extension,
err)
if not hasattr(mod, 'setup'):
self.warn('extension %r has no setup() function; is it really '
'a Sphinx extension module?' % extension)
else:
try:
mod.setup(self)
except VersionRequirementError, err:
# add the extension name to the version required
raise VersionRequirementError(
'The %s extension used by this project needs at least '
'Sphinx v%s; it therefore cannot be built with this '
'version.' % (extension, err))
self._extensions[extension] = mod
def require_sphinx(self, version):
# check the Sphinx version if requested
if version > sphinx.__version__[:3]:
raise VersionRequirementError(version)
def import_object(self, objname, source=None):
"""Import an object from a 'module.name' string."""
try:
module, name = objname.rsplit('.', 1)
except ValueError, err:
raise ExtensionError('Invalid full object name %s' % objname +
(source and ' (needed for %s)' % source or ''),
err)
try:
return getattr(__import__(module, None, None, [name]), name)
except ImportError, err:
raise ExtensionError('Could not import %s' % module +
(source and ' (needed for %s)' % source or ''),
err)
except AttributeError, err:
raise ExtensionError('Could not find %s' % objname +
(source and ' (needed for %s)' % source or ''),
err)
# event interface
def _validate_event(self, event):
event = intern(event)
if event not in self._events:
raise ExtensionError('Unknown event name: %s' % event)
def connect(self, event, callback):
self._validate_event(event)
listener_id = self.next_listener_id
if event not in self._listeners:
self._listeners[event] = {listener_id: callback}
else:
self._listeners[event][listener_id] = callback
self.next_listener_id += 1
self.debug('[app] connecting event %r: %r [id=%s]',
event, callback, listener_id)
return listener_id
def disconnect(self, listener_id):
self.debug('[app] disconnecting event: [id=%s]', listener_id)
for event in self._listeners.itervalues():
event.pop(listener_id, None)
def emit(self, event, *args):
try:
self.debug2('[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
results = []
if event in self._listeners:
for _, callback in self._listeners[event].iteritems():
results.append(callback(self, *args))
return results
def emit_firstresult(self, event, *args):
for result in self.emit(event, *args):
if result is not None:
return result
return None
# registering addon parts
def add_builder(self, builder):
self.debug('[app] adding builder: %r', builder)
if not hasattr(builder, 'name'):
raise ExtensionError('Builder class %s has no "name" attribute'
% builder)
if builder.name in self.builderclasses:
if isinstance(self.builderclasses[builder.name], tuple):
raise ExtensionError('Builder %r is a builtin builder' %
builder.name)
else:
raise ExtensionError(
'Builder %r already exists (in module %s)' % (
builder.name, self.builderclasses[builder.name].__module__))
self.builderclasses[builder.name] = builder
def add_config_value(self, name, default, rebuild):
self.debug('[app] adding config value: %r', (name, default, rebuild))
if name in self.config.values:
raise ExtensionError('Config value %r already present' % name)
if rebuild in (False, True):
rebuild = rebuild and 'env' or ''
self.config.values[name] = (default, rebuild)
def add_event(self, name):
self.debug('[app] adding event: %r', name)
if name in self._events:
raise ExtensionError('Event %r already present' % name)
self._events[name] = ''
def add_node(self, node, **kwds):
self.debug('[app] adding node: %r', (node, kwds))
nodes._add_node_class_names([node.__name__])
for key, val in kwds.iteritems():
try:
visit, depart = val
except ValueError:
raise ExtensionError('Value for key %r must be a '
'(visit, depart) function tuple' % key)
if key == 'html':
from sphinx.writers.html import HTMLTranslator as translator
elif key == 'latex':
from sphinx.writers.latex import LaTeXTranslator as translator
elif key == 'text':
from sphinx.writers.text import TextTranslator as translator
elif key == 'man':
from sphinx.writers.manpage import ManualPageTranslator \
as translator
elif key == 'texinfo':
from sphinx.writers.texinfo import TexinfoTranslator \
as translator
else:
# ignore invalid keys for compatibility
continue
setattr(translator, 'visit_'+node.__name__, visit)
if depart:
setattr(translator, 'depart_'+node.__name__, depart)
def _directive_helper(self, obj, content=None, arguments=None, **options):
if isinstance(obj, (types.FunctionType, types.MethodType)):
obj.content = content
obj.arguments = arguments or (0, 0, False)
obj.options = options
return convert_directive_function(obj)
else:
if content or arguments or options:
raise ExtensionError('when adding directive classes, no '
'additional arguments may be given')
return obj
def add_directive(self, name, obj, content=None, arguments=None, **options):
self.debug('[app] adding directive: %r',
(name, obj, content, arguments, options))
directives.register_directive(
name, self._directive_helper(obj, content, arguments, **options))
def add_role(self, name, role):
self.debug('[app] adding role: %r', (name, role))
roles.register_local_role(name, role)
def add_generic_role(self, name, nodeclass):
# don't use roles.register_generic_role because it uses
# register_canonical_role
self.debug('[app] adding generic role: %r', (name, nodeclass))
role = roles.GenericRole(name, nodeclass)
roles.register_local_role(name, role)
def add_domain(self, domain):
self.debug('[app] adding domain: %r', domain)
if domain.name in self.domains:
raise ExtensionError('domain %s already registered' % domain.name)
self.domains[domain.name] = domain
def override_domain(self, domain):
self.debug('[app] overriding domain: %r', domain)
if domain.name not in self.domains:
raise ExtensionError('domain %s not yet registered' % domain.name)
if not issubclass(domain, self.domains[domain.name]):
raise ExtensionError('new domain not a subclass of registered %s '
'domain' % domain.name)
self.domains[domain.name] = domain
def add_directive_to_domain(self, domain, name, obj,
content=None, arguments=None, **options):
self.debug('[app] adding directive to domain: %r',
(domain, name, obj, content, arguments, options))
if domain not in self.domains:
raise ExtensionError('domain %s not yet registered' % domain)
self.domains[domain].directives[name] = \
self._directive_helper(obj, content, arguments, **options)
def add_role_to_domain(self, domain, name, role):
self.debug('[app] adding role to domain: %r', (domain, name, role))
if domain not in self.domains:
raise ExtensionError('domain %s not yet registered' % domain)
self.domains[domain].roles[name] = role
def add_index_to_domain(self, domain, index):
self.debug('[app] adding index to domain: %r', (domain, index))
if domain not in self.domains:
raise ExtensionError('domain %s not yet registered' % domain)
self.domains[domain].indices.append(index)
def add_object_type(self, directivename, rolename, indextemplate='',
parse_node=None, ref_nodeclass=None, objname='',
doc_field_types=[]):
self.debug('[app] adding object type: %r',
(directivename, rolename, indextemplate, parse_node,
ref_nodeclass, objname, doc_field_types))
StandardDomain.object_types[directivename] = \
ObjType(objname or directivename, rolename)
# create a subclass of GenericObject as the new directive
new_directive = type(directivename, (GenericObject, object),
{'indextemplate': indextemplate,
'parse_node': staticmethod(parse_node),
'doc_field_types': doc_field_types})
StandardDomain.directives[directivename] = new_directive
# XXX support more options?
StandardDomain.roles[rolename] = XRefRole(innernodeclass=ref_nodeclass)
# backwards compatible alias
add_description_unit = add_object_type
def add_crossref_type(self, directivename, rolename, indextemplate='',
ref_nodeclass=None, objname=''):
self.debug('[app] adding crossref type: %r',
(directivename, rolename, indextemplate, ref_nodeclass,
objname))
StandardDomain.object_types[directivename] = \
ObjType(objname or directivename, rolename)
# create a subclass of Target as the new directive
new_directive = type(directivename, (Target, object),
{'indextemplate': indextemplate})
StandardDomain.directives[directivename] = new_directive
# XXX support more options?
StandardDomain.roles[rolename] = XRefRole(innernodeclass=ref_nodeclass)
def add_transform(self, transform):
self.debug('[app] adding transform: %r', transform)
SphinxStandaloneReader.transforms.append(transform)
def add_javascript(self, filename):
self.debug('[app] adding javascript: %r', filename)
from sphinx.builders.html import StandaloneHTMLBuilder
if '://' in filename:
StandaloneHTMLBuilder.script_files.append(filename)
else:
StandaloneHTMLBuilder.script_files.append(
posixpath.join('_static', filename))
def add_stylesheet(self, filename):
self.debug('[app] adding stylesheet: %r', filename)
from sphinx.builders.html import StandaloneHTMLBuilder
if '://' in filename:
StandaloneHTMLBuilder.css_files.append(filename)
else:
StandaloneHTMLBuilder.css_files.append(
posixpath.join('_static', filename))
def add_lexer(self, alias, lexer):
self.debug('[app] adding lexer: %r', (alias, lexer))
from sphinx.highlighting import lexers
if lexers is None:
return
lexers[alias] = lexer
def add_autodocumenter(self, cls):
self.debug('[app] adding autodocumenter: %r', cls)
from sphinx.ext import autodoc
autodoc.add_documenter(cls)
self.add_directive('auto' + cls.objtype, autodoc.AutoDirective)
def add_autodoc_attrgetter(self, type, getter):
self.debug('[app] adding autodoc attrgetter: %r', (type, getter))
from sphinx.ext import autodoc
autodoc.AutoDirective._special_attrgetters[type] = getter
def add_search_language(self, cls):
self.debug('[app] adding search language: %r', cls)
from sphinx.search import languages, SearchLanguage
assert isinstance(cls, SearchLanguage)
languages[cls.lang] = cls
class TemplateBridge(object):
"""
This class defines the interface for a "template bridge", that is, a class
that renders templates given a template name and a context.
"""
def init(self, builder, theme=None, dirs=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')
def newest_template_mtime(self):
"""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
def render(self, template, context):
"""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')
def render_string(self, template, context):
"""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')
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