django/docs/_ext/djangodocs.py

226 lines
7.8 KiB
Python

"""
Sphinx plugins for Django documentation.
"""
import docutils.nodes
import docutils.transforms
import sphinx
import sphinx.addnodes
import sphinx.builder
import sphinx.directives
import sphinx.environment
import sphinx.htmlwriter
import sphinx.roles
from docutils import nodes
def setup(app):
app.add_crossref_type(
directivename = "setting",
rolename = "setting",
indextemplate = "pair: %s; setting",
)
app.add_crossref_type(
directivename = "templatetag",
rolename = "ttag",
indextemplate = "pair: %s; template tag"
)
app.add_crossref_type(
directivename = "templatefilter",
rolename = "tfilter",
indextemplate = "pair: %s; template filter"
)
app.add_crossref_type(
directivename = "fieldlookup",
rolename = "lookup",
indextemplate = "pair: %s, field lookup type",
)
app.add_description_unit(
directivename = "django-admin",
rolename = "djadmin",
indextemplate = "pair: %s; django-admin command",
parse_node = parse_django_admin_node,
)
app.add_description_unit(
directivename = "django-admin-option",
rolename = "djadminopt",
indextemplate = "pair: %s; django-admin command-line option",
parse_node = lambda env, sig, signode: sphinx.directives.parse_option_desc(signode, sig),
)
app.add_config_value('django_next_version', '0.0', True)
app.add_directive('versionadded', parse_version_directive, 1, (1, 1, 1))
app.add_directive('versionchanged', parse_version_directive, 1, (1, 1, 1))
app.add_transform(SuppressBlockquotes)
# Monkeypatch PickleHTMLBuilder so that it doesn't die in Sphinx 0.4.2
if sphinx.__version__ == '0.4.2':
monkeypatch_pickle_builder()
def parse_version_directive(name, arguments, options, content, lineno,
content_offset, block_text, state, state_machine):
env = state.document.settings.env
is_nextversion = env.config.django_next_version == arguments[0]
ret = []
node = sphinx.addnodes.versionmodified()
ret.append(node)
if not is_nextversion:
if len(arguments) == 1:
linktext = 'Please, see the release notes <releases-%s>' % (arguments[0])
xrefs = sphinx.roles.xfileref_role('ref', linktext, linktext, lineno, state)
node.extend(xrefs[0])
node['version'] = arguments[0]
else:
node['version'] = "Development version"
node['type'] = name
if len(arguments) == 2:
inodes, messages = state.inline_text(arguments[1], lineno+1)
node.extend(inodes)
if content:
state.nested_parse(content, content_offset, node)
ret = ret + messages
env.note_versionchange(node['type'], node['version'], node, lineno)
return ret
class SuppressBlockquotes(docutils.transforms.Transform):
"""
Remove the default blockquotes that encase indented list, tables, etc.
"""
default_priority = 300
suppress_blockquote_child_nodes = (
docutils.nodes.bullet_list,
docutils.nodes.enumerated_list,
docutils.nodes.definition_list,
docutils.nodes.literal_block,
docutils.nodes.doctest_block,
docutils.nodes.line_block,
docutils.nodes.table
)
def apply(self):
for node in self.document.traverse(docutils.nodes.block_quote):
if len(node.children) == 1 and isinstance(node.children[0], self.suppress_blockquote_child_nodes):
node.replace_self(node.children[0])
class DjangoHTMLTranslator(sphinx.htmlwriter.SmartyPantsHTMLTranslator):
"""
Django-specific reST to HTML tweaks.
"""
# Don't use border=1, which docutils does by default.
def visit_table(self, node):
self.body.append(self.starttag(node, 'table', CLASS='docutils'))
# <big>? Really?
def visit_desc_parameterlist(self, node):
self.body.append('(')
self.first_param = 1
def depart_desc_parameterlist(self, node):
self.body.append(')')
pass
#
# Don't apply smartypants to literal blocks
#
def visit_literal_block(self, node):
self.no_smarty += 1
sphinx.htmlwriter.SmartyPantsHTMLTranslator.visit_literal_block(self, node)
def depart_literal_block(self, node):
sphinx.htmlwriter.SmartyPantsHTMLTranslator.depart_literal_block(self, node)
self.no_smarty -= 1
#
# Turn the "new in version" stuff (versoinadded/versionchanged) into a
# better callout -- the Sphinx default is just a little span,
# which is a bit less obvious that I'd like.
#
# FIXME: these messages are all hardcoded in English. We need to chanage
# that to accomodate other language docs, but I can't work out how to make
# that work and I think it'll require Sphinx 0.5 anyway.
#
version_text = {
'deprecated': 'Deprecated in Django %s',
'versionchanged': 'Changed in Django %s',
'versionadded': 'New in Django %s',
}
def visit_versionmodified(self, node):
self.body.append(
self.starttag(node, 'div', CLASS=node['type'])
)
title = "%s%s" % (
self.version_text[node['type']] % node['version'],
len(node) and ":" or "."
)
self.body.append('<span class="title">%s</span> ' % title)
def depart_versionmodified(self, node):
self.body.append("</div>\n")
# Give each section a unique ID -- nice for custom CSS hooks
# This is different on docutils 0.5 vs. 0.4...
if hasattr(sphinx.htmlwriter.SmartyPantsHTMLTranslator, 'start_tag_with_title') and sphinx.__version__ == '0.4.2':
def start_tag_with_title(self, node, tagname, **atts):
node = {
'classes': node.get('classes', []),
'ids': ['s-%s' % i for i in node.get('ids', [])]
}
return self.starttag(node, tagname, **atts)
else:
def visit_section(self, node):
old_ids = node.get('ids', [])
node['ids'] = ['s-' + i for i in old_ids]
if sphinx.__version__ != '0.4.2':
node['ids'].extend(old_ids)
sphinx.htmlwriter.SmartyPantsHTMLTranslator.visit_section(self, node)
node['ids'] = old_ids
def parse_django_admin_node(env, sig, signode):
command = sig.split(' ')[0]
env._django_curr_admin_command = command
title = "django-admin.py %s" % sig
signode += sphinx.addnodes.desc_name(title, title)
return sig
def monkeypatch_pickle_builder():
import shutil
from os import path
try:
import cPickle as pickle
except ImportError:
import pickle
from sphinx.util.console import bold
def handle_finish(self):
# dump the global context
outfilename = path.join(self.outdir, 'globalcontext.pickle')
f = open(outfilename, 'wb')
try:
pickle.dump(self.globalcontext, f, 2)
finally:
f.close()
self.info(bold('dumping search index...'))
self.indexer.prune(self.env.all_docs)
f = open(path.join(self.outdir, 'searchindex.pickle'), 'wb')
try:
self.indexer.dump(f, 'pickle')
finally:
f.close()
# copy the environment file from the doctree dir to the output dir
# as needed by the web app
shutil.copyfile(path.join(self.doctreedir, sphinx.builder.ENV_PICKLE_FILENAME),
path.join(self.outdir, sphinx.builder.ENV_PICKLE_FILENAME))
# touch 'last build' file, used by the web application to determine
# when to reload its environment and clear the cache
open(path.join(self.outdir, sphinx.builder.LAST_BUILD_FILENAME), 'w').close()
sphinx.builder.PickleHTMLBuilder.handle_finish = handle_finish