django/docs/_ext/djangodocs.py

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"""
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
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_transform(SuppressBlockquotes)
# Monkeypatch PickleHTMLBuilder so that it doesn't die in Sphinx 0.4.2
if sphinx.__version__ == '0.4.2':
monkeypatch_pickle_builder()
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