mirror of
https://github.com/django/django.git
synced 2025-10-31 09:41:08 +00:00
402 lines
14 KiB
Python
402 lines
14 KiB
Python
"""
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Sphinx plugins for Django documentation.
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"""
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import json
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import os
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import re
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from docutils import nodes
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from docutils.parsers.rst import Directive
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from docutils.statemachine import ViewList
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from sphinx import addnodes
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from sphinx import version_info as sphinx_version
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from sphinx.builders.html import StandaloneHTMLBuilder
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from sphinx.directives.code import CodeBlock
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from sphinx.domains.std import Cmdoption
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from sphinx.errors import ExtensionError
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from sphinx.util import logging
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from sphinx.util.console import bold
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from sphinx.writers.html import HTMLTranslator
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logger = logging.getLogger(__name__)
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# RE for option descriptions without a '--' prefix
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simple_option_desc_re = re.compile(r"([-_a-zA-Z0-9]+)(\s*.*?)(?=,\s+(?:/|-|--)|$)")
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def setup(app):
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app.add_crossref_type(
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directivename="setting",
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rolename="setting",
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indextemplate="pair: %s; setting",
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)
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app.add_crossref_type(
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directivename="templatetag",
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rolename="ttag",
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indextemplate="pair: %s; template tag",
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)
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app.add_crossref_type(
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directivename="templatefilter",
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rolename="tfilter",
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indextemplate="pair: %s; template filter",
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)
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app.add_crossref_type(
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directivename="fieldlookup",
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rolename="lookup",
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indextemplate="pair: %s; field lookup type",
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)
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app.add_object_type(
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directivename="django-admin",
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rolename="djadmin",
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indextemplate="pair: %s; django-admin command",
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parse_node=parse_django_admin_node,
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)
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app.add_directive("django-admin-option", Cmdoption)
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app.add_config_value("django_next_version", "0.0", True)
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app.add_directive("versionadded", VersionDirective)
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app.add_directive("versionchanged", VersionDirective)
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app.add_builder(DjangoStandaloneHTMLBuilder)
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app.set_translator("djangohtml", DjangoHTMLTranslator)
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app.set_translator("json", DjangoHTMLTranslator)
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app.add_node(
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ConsoleNode,
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html=(visit_console_html, None),
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latex=(visit_console_dummy, depart_console_dummy),
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man=(visit_console_dummy, depart_console_dummy),
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text=(visit_console_dummy, depart_console_dummy),
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texinfo=(visit_console_dummy, depart_console_dummy),
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)
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app.add_directive("console", ConsoleDirective)
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app.connect("html-page-context", html_page_context_hook)
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app.add_role("default-role-error", default_role_error)
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return {"parallel_read_safe": True}
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class VersionDirective(Directive):
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has_content = True
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required_arguments = 1
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optional_arguments = 1
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final_argument_whitespace = True
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option_spec = {}
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def run(self):
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if len(self.arguments) > 1:
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msg = """Only one argument accepted for directive '{directive_name}::'.
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Comments should be provided as content,
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not as an extra argument.""".format(
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directive_name=self.name
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)
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raise self.error(msg)
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env = self.state.document.settings.env
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ret = []
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node = addnodes.versionmodified()
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ret.append(node)
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if self.arguments[0] == env.config.django_next_version:
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node["version"] = "Development version"
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else:
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node["version"] = self.arguments[0]
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node["type"] = self.name
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if self.content:
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self.state.nested_parse(self.content, self.content_offset, node)
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try:
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env.get_domain("changeset").note_changeset(node)
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except ExtensionError:
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# Sphinx < 1.8: Domain 'changeset' is not registered
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env.note_versionchange(node["type"], node["version"], node, self.lineno)
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return ret
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class DjangoHTMLTranslator(HTMLTranslator):
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"""
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Django-specific reST to HTML tweaks.
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"""
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# Don't use border=1, which docutils does by default.
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def visit_table(self, node):
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self.context.append(self.compact_p)
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self.compact_p = True
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# Needed by Sphinx.
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if sphinx_version >= (4, 3):
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self._table_row_indices.append(0)
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else:
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self._table_row_index = 0
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self.body.append(self.starttag(node, "table", CLASS="docutils"))
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def depart_table(self, node):
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self.compact_p = self.context.pop()
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if sphinx_version >= (4, 3):
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self._table_row_indices.pop()
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self.body.append("</table>\n")
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def visit_desc_parameterlist(self, node):
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self.body.append("(") # by default sphinx puts <big> around the "("
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self.first_param = 1
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self.optional_param_level = 0
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self.param_separator = node.child_text_separator
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self.required_params_left = sum(
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isinstance(c, addnodes.desc_parameter) for c in node.children
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)
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def depart_desc_parameterlist(self, node):
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self.body.append(")")
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#
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# Turn the "new in version" stuff (versionadded/versionchanged) into a
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# better callout -- the Sphinx default is just a little span,
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# which is a bit less obvious that I'd like.
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#
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# FIXME: these messages are all hardcoded in English. We need to change
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# that to accommodate other language docs, but I can't work out how to make
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# that work.
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#
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version_text = {
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"versionchanged": "Changed in Django %s",
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"versionadded": "New in Django %s",
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}
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def visit_versionmodified(self, node):
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self.body.append(self.starttag(node, "div", CLASS=node["type"]))
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version_text = self.version_text.get(node["type"])
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if version_text:
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title = "%s%s" % (version_text % node["version"], ":" if len(node) else ".")
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self.body.append('<span class="title">%s</span> ' % title)
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def depart_versionmodified(self, node):
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self.body.append("</div>\n")
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# Give each section a unique ID -- nice for custom CSS hooks
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def visit_section(self, node):
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old_ids = node.get("ids", [])
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node["ids"] = ["s-" + i for i in old_ids]
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node["ids"].extend(old_ids)
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super().visit_section(node)
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node["ids"] = old_ids
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def parse_django_admin_node(env, sig, signode):
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command = sig.split(" ")[0]
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env.ref_context["std:program"] = command
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title = "django-admin %s" % sig
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signode += addnodes.desc_name(title, title)
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return command
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class DjangoStandaloneHTMLBuilder(StandaloneHTMLBuilder):
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"""
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Subclass to add some extra things we need.
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"""
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name = "djangohtml"
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def finish(self):
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super().finish()
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logger.info(bold("writing templatebuiltins.js..."))
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xrefs = self.env.domaindata["std"]["objects"]
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templatebuiltins = {
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"ttags": [
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n
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for ((t, n), (k, a)) in xrefs.items()
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if t == "templatetag" and k == "ref/templates/builtins"
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],
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"tfilters": [
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n
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for ((t, n), (k, a)) in xrefs.items()
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if t == "templatefilter" and k == "ref/templates/builtins"
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],
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}
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outfilename = os.path.join(self.outdir, "templatebuiltins.js")
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with open(outfilename, "w") as fp:
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fp.write("var django_template_builtins = ")
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json.dump(templatebuiltins, fp)
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fp.write(";\n")
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class ConsoleNode(nodes.literal_block):
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"""
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Custom node to override the visit/depart event handlers at registration
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time. Wrap a literal_block object and defer to it.
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"""
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tagname = "ConsoleNode"
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def __init__(self, litblk_obj):
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self.wrapped = litblk_obj
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def __getattr__(self, attr):
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if attr == "wrapped":
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return self.__dict__.wrapped
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return getattr(self.wrapped, attr)
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def visit_console_dummy(self, node):
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"""Defer to the corresponding parent's handler."""
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self.visit_literal_block(node)
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def depart_console_dummy(self, node):
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"""Defer to the corresponding parent's handler."""
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self.depart_literal_block(node)
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def visit_console_html(self, node):
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"""Generate HTML for the console directive."""
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if self.builder.name in ("djangohtml", "json") and node["win_console_text"]:
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# Put a mark on the document object signaling the fact the directive
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# has been used on it.
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self.document._console_directive_used_flag = True
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uid = node["uid"]
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self.body.append(
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"""\
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<div class="console-block" id="console-block-%(id)s">
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<input class="c-tab-unix" id="c-tab-%(id)s-unix" type="radio" name="console-%(id)s" \
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checked>
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<label for="c-tab-%(id)s-unix" title="Linux/macOS">/</label>
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<input class="c-tab-win" id="c-tab-%(id)s-win" type="radio" name="console-%(id)s">
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<label for="c-tab-%(id)s-win" title="Windows"></label>
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<section class="c-content-unix" id="c-content-%(id)s-unix">\n"""
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% {"id": uid}
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)
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try:
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self.visit_literal_block(node)
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except nodes.SkipNode:
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pass
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self.body.append("</section>\n")
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self.body.append(
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'<section class="c-content-win" id="c-content-%(id)s-win">\n' % {"id": uid}
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)
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win_text = node["win_console_text"]
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highlight_args = {"force": True}
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linenos = node.get("linenos", False)
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def warner(msg):
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self.builder.warn(msg, (self.builder.current_docname, node.line))
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highlighted = self.highlighter.highlight_block(
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win_text, "doscon", warn=warner, linenos=linenos, **highlight_args
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)
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self.body.append(highlighted)
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self.body.append("</section>\n")
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self.body.append("</div>\n")
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raise nodes.SkipNode
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else:
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self.visit_literal_block(node)
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class ConsoleDirective(CodeBlock):
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"""
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A reStructuredText directive which renders a two-tab code block in which
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the second tab shows a Windows command line equivalent of the usual
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Unix-oriented examples.
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"""
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required_arguments = 0
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# The 'doscon' Pygments formatter needs a prompt like this. '>' alone
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# won't do it because then it simply paints the whole command line as a
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# gray comment with no highlighting at all.
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WIN_PROMPT = r"...\> "
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def run(self):
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def args_to_win(cmdline):
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changed = False
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out = []
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for token in cmdline.split():
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if token[:2] == "./":
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token = token[2:]
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changed = True
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elif token[:2] == "~/":
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token = "%HOMEPATH%\\" + token[2:]
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changed = True
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elif token == "make":
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token = "make.bat"
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changed = True
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if "://" not in token and "git" not in cmdline:
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out.append(token.replace("/", "\\"))
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changed = True
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else:
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out.append(token)
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if changed:
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return " ".join(out)
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return cmdline
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def cmdline_to_win(line):
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if line.startswith("# "):
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return "REM " + args_to_win(line[2:])
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if line.startswith("$ # "):
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return "REM " + args_to_win(line[4:])
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if line.startswith("$ ./manage.py"):
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return "manage.py " + args_to_win(line[13:])
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if line.startswith("$ manage.py"):
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return "manage.py " + args_to_win(line[11:])
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if line.startswith("$ ./runtests.py"):
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return "runtests.py " + args_to_win(line[15:])
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if line.startswith("$ ./"):
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return args_to_win(line[4:])
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if line.startswith("$ python3"):
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return "py " + args_to_win(line[9:])
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if line.startswith("$ python"):
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return "py " + args_to_win(line[8:])
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if line.startswith("$ "):
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return args_to_win(line[2:])
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return None
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def code_block_to_win(content):
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bchanged = False
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lines = []
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for line in content:
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modline = cmdline_to_win(line)
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if modline is None:
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lines.append(line)
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else:
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lines.append(self.WIN_PROMPT + modline)
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bchanged = True
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if bchanged:
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return ViewList(lines)
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return None
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env = self.state.document.settings.env
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self.arguments = ["console"]
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lit_blk_obj = super().run()[0]
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# Only do work when the djangohtml HTML Sphinx builder is being used,
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# invoke the default behavior for the rest.
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if env.app.builder.name not in ("djangohtml", "json"):
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return [lit_blk_obj]
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lit_blk_obj["uid"] = str(env.new_serialno("console"))
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# Only add the tabbed UI if there is actually a Windows-specific
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# version of the CLI example.
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win_content = code_block_to_win(self.content)
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if win_content is None:
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lit_blk_obj["win_console_text"] = None
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else:
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self.content = win_content
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lit_blk_obj["win_console_text"] = super().run()[0].rawsource
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# Replace the literal_node object returned by Sphinx's CodeBlock with
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# the ConsoleNode wrapper.
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return [ConsoleNode(lit_blk_obj)]
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def html_page_context_hook(app, pagename, templatename, context, doctree):
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# Put a bool on the context used to render the template. It's used to
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# control inclusion of console-tabs.css and activation of the JavaScript.
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# This way it's include only from HTML files rendered from reST files where
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# the ConsoleDirective is used.
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context["include_console_assets"] = getattr(
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doctree, "_console_directive_used_flag", False
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)
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def default_role_error(
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name, rawtext, text, lineno, inliner, options=None, content=None
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):
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msg = (
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"Default role used (`single backticks`): %s. Did you mean to use two "
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"backticks for ``code``, or miss an underscore for a `link`_ ?" % rawtext
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)
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logger.warning(msg, location=(inliner.document.current_source, lineno))
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return [nodes.Text(text)], []
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