sphinx-autoapi/autoapi/extension.py
2018-11-13 11:07:36 -08:00

242 lines
8.6 KiB
Python

# -*- coding: utf-8 -*-
"""
Sphinx Auto-API Top-level Extension.
This extension allows you to automagically generate API documentation from your project.
"""
import codecs
import os
import shutil
import sphinx
from sphinx.util.console import darkgreen, bold
from sphinx.addnodes import toctree
from sphinx.errors import ExtensionError
from docutils.parsers.rst import directives
from . import documenters
from . import utils
from .backends import default_file_mapping, default_ignore_patterns, default_backend_mapping
from .directives import AutoapiSummary, NestedParse
from .settings import API_ROOT
from .toctree import add_domain_to_toctree
default_options = ['members', 'undoc-members', 'private-members', 'special-members']
_viewcode_cache = {}
"""Caches a module's parse results for use in viewcode.
:type: dict(str, tuple)
"""
def run_autoapi(app):
"""
Load AutoAPI data from the filesystem.
"""
if not app.config.autoapi_dirs:
raise ExtensionError('You must configure an autoapi_dirs setting')
# Make sure the paths are full
normalized_dirs = []
autoapi_dirs = app.config.autoapi_dirs
if isinstance(autoapi_dirs, str):
autoapi_dirs = [autoapi_dirs]
for path in autoapi_dirs:
if os.path.isabs(path):
normalized_dirs.append(path)
else:
normalized_dirs.append(
os.path.normpath(os.path.join(app.confdir, path))
)
for _dir in normalized_dirs:
if not os.path.exists(_dir):
raise ExtensionError(
'AutoAPI Directory `{dir}` not found. '
'Please check your `autoapi_dirs` setting.'.format(
dir=_dir
)
)
normalized_root = os.path.normpath(os.path.join(app.confdir, app.config.autoapi_root))
url_root = os.path.join('/', app.config.autoapi_root)
sphinx_mapper = default_backend_mapping[app.config.autoapi_type]
sphinx_mapper_obj = sphinx_mapper(app, template_dir=app.config.autoapi_template_dir,
url_root=url_root)
app.env.autoapi_mapper = sphinx_mapper_obj
if app.config.autoapi_file_patterns:
file_patterns = app.config.autoapi_file_patterns
else:
file_patterns = default_file_mapping.get(app.config.autoapi_type, [])
if app.config.autoapi_ignore:
ignore_patterns = app.config.autoapi_ignore
else:
ignore_patterns = default_ignore_patterns.get(app.config.autoapi_type, [])
if '.rst' in app.config.source_suffix:
out_suffix = '.rst'
elif '.txt' in app.config.source_suffix:
out_suffix = '.txt'
else:
# Fallback to first suffix listed
out_suffix = app.config.source_suffix[0]
# Actual meat of the run.
app.info(bold('[AutoAPI] ') + darkgreen('Loading Data'))
sphinx_mapper_obj.load(
patterns=file_patterns,
dirs=normalized_dirs,
ignore=ignore_patterns,
)
app.info(bold('[AutoAPI] ') + darkgreen('Mapping Data'))
sphinx_mapper_obj.map(options=app.config.autoapi_options)
if app.config.autoapi_generate_api_docs:
app.info(bold('[AutoAPI] ') + darkgreen('Rendering Data'))
sphinx_mapper_obj.output_rst(
root=normalized_root,
source_suffix=out_suffix,
)
def build_finished(app, exception):
if not app.config.autoapi_keep_files and app.config.autoapi_generate_api_docs:
normalized_root = os.path.normpath(os.path.join(app.confdir, app.config.autoapi_root))
if app.verbosity > 1:
app.info(bold('[AutoAPI] ') + darkgreen('Cleaning generated .rst files'))
shutil.rmtree(normalized_root)
sphinx_mapper = default_backend_mapping[app.config.autoapi_type]
if hasattr(sphinx_mapper, 'build_finished'):
sphinx_mapper.build_finished(app, exception)
def doctree_read(app, doctree):
"""
Inject AutoAPI into the TOC Tree dynamically.
"""
if app.env.docname == 'index':
all_docs = set()
insert = True
nodes = doctree.traverse(toctree)
toc_entry = '%s/index' % app.config.autoapi_root
if not nodes:
return
# Capture all existing toctree entries
for node in nodes:
for entry in node['entries']:
all_docs.add(entry[1])
# Don't insert autoapi it's already present
for doc in all_docs:
if doc.find(app.config.autoapi_root) != -1:
insert = False
if insert and app.config.autoapi_add_toctree_entry:
# Insert AutoAPI index
nodes[-1]['entries'].append(
(None, u'%s/index' % app.config.autoapi_root)
)
nodes[-1]['includefiles'].append(u'%s/index' % app.config.autoapi_root)
message_prefix = bold('[AutoAPI] ')
message = darkgreen(
'Adding AutoAPI TOCTree [{0}] to index.rst'.format(toc_entry)
)
app.info(message_prefix + message)
def clear_env(app, env):
"""Clears the environment of the unpicklable objects that we left behind."""
env.autoapi_mapper = None
def viewcode_find(app, modname):
mapper = app.env.autoapi_mapper
if modname not in mapper.objects:
return None
if modname in _viewcode_cache:
return _viewcode_cache[modname]
locations = {}
module = mapper.objects[modname]
for child in module.children:
stack = [('', child)]
while stack:
prefix, obj = stack.pop()
type_ = 'other'
if obj.type == 'class':
type_ = 'class'
elif obj.type in ('function', 'method'):
type_ = 'def'
full_name = prefix + obj.name
if 'from_line_no' in obj.obj:
locations[full_name] = (
type_, obj.obj['from_line_no'], obj.obj['to_line_no'],
)
children = getattr(obj, 'children', ())
stack.extend((full_name + '.', gchild) for gchild in children)
if module.obj['encoding']:
source = codecs.open(
module.obj['file_path'], encoding=module.obj['encoding']
).read()
else:
source = open(module.obj['file_path']).read()
result = (source, locations)
_viewcode_cache[modname] = result
return result
def viewcode_follow_imported(app, modname, attribute):
fullname = '{}.{}'.format(modname, attribute)
mapper = app.env.autoapi_mapper
if fullname not in mapper.all_objects:
return None
orig_path = mapper.all_objects[fullname].obj.get('original_path', '')
if orig_path.endswith(attribute):
return orig_path[:-len(attribute) - 1]
return modname
def setup(app):
app.connect('builder-inited', run_autoapi)
app.connect('doctree-read', doctree_read)
app.connect('doctree-resolved', add_domain_to_toctree)
app.connect('build-finished', build_finished)
app.connect('env-updated', clear_env)
if sphinx.version_info >= (1, 8):
if 'viewcode-find-source' in app.events.events:
app.connect('viewcode-find-source', viewcode_find)
if 'viewcode-follow-imported' in app.events.events:
app.connect('viewcode-follow-imported', viewcode_follow_imported)
app.add_config_value('autoapi_type', 'python', 'html')
app.add_config_value('autoapi_root', API_ROOT, 'html')
app.add_config_value('autoapi_ignore', [], 'html')
app.add_config_value('autoapi_options', default_options, 'html')
app.add_config_value('autoapi_file_patterns', None, 'html')
app.add_config_value('autoapi_dirs', [], 'html')
app.add_config_value('autoapi_keep_files', False, 'html')
app.add_config_value('autoapi_add_toctree_entry', True, 'html')
app.add_config_value('autoapi_template_dir', None, 'html')
app.add_config_value('autoapi_include_summaries', False, 'html')
app.add_config_value('autoapi_python_class_content', 'class', 'html')
app.add_config_value('autoapi_generate_api_docs', True, 'html')
app.add_autodocumenter(documenters.AutoapiFunctionDocumenter)
app.add_autodocumenter(documenters.AutoapiClassDocumenter)
app.add_autodocumenter(documenters.AutoapiMethodDocumenter)
app.add_autodocumenter(documenters.AutoapiDataDocumenter)
app.add_autodocumenter(documenters.AutoapiAttributeDocumenter)
app.add_autodocumenter(documenters.AutoapiModuleDocumenter)
app.add_autodocumenter(documenters.AutoapiExceptionDocumenter)
app.add_stylesheet('autoapi.css')
directives.register_directive('autoapi-nested-parse', NestedParse)
directives.register_directive('autoapisummary', AutoapiSummary)
app.setup_extension('sphinx.ext.autosummary')