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sphinx-autoapi/autoapi/mappers/dotnet.py

627 lines
20 KiB
Python

import re
import os
import subprocess
import traceback
import shutil
from collections import defaultdict
import unidecode
import yaml
from sphinx.util.osutil import ensuredir
from sphinx.util.console import darkgreen, bold
import sphinx.util.logging
from sphinx.errors import ExtensionError
from .base import PythonMapperBase, SphinxMapperBase
LOGGER = sphinx.util.logging.getLogger(__name__)
# Doc comment patterns
DOC_COMMENT_PATTERN = r"""
\<%(tag)s
\s+%(attr)s="(?P<attr_value>[^"]*?)"
\s*?
(?:
\/\>|
\>(?P<inner>[^\<]*?)\<\/%(tag)s\>
)
"""
DOC_COMMENT_SEE_PATTERN = re.compile(
DOC_COMMENT_PATTERN % {"tag": "(?:see|seealso)", "attr": "cref"}, re.X
)
DOC_COMMENT_PARAM_PATTERN = re.compile(
DOC_COMMENT_PATTERN % {"tag": "(?:paramref|typeparamref)", "attr": "name"}, re.X
)
# Comment member identities
# From: https://msdn.microsoft.com/en-us/library/vstudio/fsbx0t7x(v=VS.100).aspx
DOC_COMMENT_IDENTITIES = {
"N": "dn:ns",
"T": "any", # can be any type (class, delegate, enum, etc), so use any
"F": "dn:field",
"P": "dn:prop",
"M": "dn:meth",
"E": "dn:event",
}
class DotNetSphinxMapper(SphinxMapperBase):
"""Auto API domain handler for .NET
Searches for YAML files, and soon to be JSON files as well, for auto API
sources. If no pattern configuration was explicitly specified, then default
to looking up a ``docfx.json`` file.
:param app: Sphinx application passed in as part of the extension
"""
top_namespaces = {}
DOCFX_OUTPUT_PATH = "_api"
# pylint: disable=arguments-differ
def load(self, patterns, dirs, ignore=None, **kwargs):
"""Load objects from the filesystem into the ``paths`` dictionary.
If the setting ``autoapi_patterns`` was not specified, look for a
``docfx.json`` file by default. A ``docfx.json`` should be treated as
the canonical source before the default patterns. Fallback to default
pattern matches if no ``docfx.json`` files are found.
"""
LOGGER.info(bold("[AutoAPI] ") + darkgreen("Loading Data"))
raise_error = kwargs.get("raise_error", True)
all_files = set()
if not self.app.config.autoapi_file_patterns:
all_files = set(
self.find_files(patterns=["docfx.json"], dirs=dirs, ignore=ignore)
)
if not all_files:
all_files = set(
self.find_files(patterns=patterns, dirs=dirs, ignore=ignore)
)
if all_files:
try:
command = ["docfx", "metadata", "--raw", "--force"]
command.extend(all_files)
proc = subprocess.Popen(
" ".join(command),
stdout=subprocess.PIPE,
stderr=subprocess.PIPE,
shell=True,
env=dict(
(key, os.environ[key])
for key in [
"PATH",
"HOME",
"SYSTEMROOT",
"USERPROFILE",
"WINDIR",
]
if key in os.environ
),
)
_, error_output = proc.communicate()
if error_output:
LOGGER.warning(error_output)
except (OSError, subprocess.CalledProcessError):
LOGGER.warning("Error generating metadata", exc_info=True)
if raise_error:
raise ExtensionError(
"Failure in docfx while generating AutoAPI output."
)
# We now have yaml files
for xdoc_path in self.find_files(
patterns=["*.yml"], dirs=[self.DOCFX_OUTPUT_PATH], ignore=ignore
):
data = self.read_file(path=xdoc_path)
if data:
self.paths[xdoc_path] = data
def read_file(self, path, **kwargs):
"""Read file input into memory, returning deserialized objects
:param path: Path of file to read
"""
try:
with open(path, "r") as handle:
parsed_data = yaml.safe_load(handle)
return parsed_data
except IOError:
LOGGER.warning("Error reading file: {0}".format(path))
except TypeError:
LOGGER.warning("Error reading file: {0}".format(path))
return None
# Subclassed to iterate over items
def map(self, options=None):
"""Trigger find of serialized sources and build objects"""
for _, data in sphinx.util.status_iterator(
self.paths.items(),
bold("[AutoAPI] ") + "Mapping Data... ",
length=len(self.paths),
stringify_func=(lambda x: x[0]),
):
references = data.get("references", [])
for item in data["items"]:
for obj in self.create_class(item, options, references=references):
self.add_object(obj)
self.organize_objects()
def create_class(self, data, options=None, **kwargs):
"""
Return instance of class based on Roslyn type property
Data keys handled here:
type
Set the object class
items
Recurse into :py:meth:`create_class` to create child object
instances
:param data: dictionary data from Roslyn output artifact
"""
kwargs.pop("path", None)
obj_map = {cls.type: cls for cls in ALL_CLASSES}
try:
cls = obj_map[data["type"].lower()]
except KeyError:
LOGGER.warning("Unknown type: %s" % data)
else:
obj = cls(data, jinja_env=self.jinja_env, options=options, **kwargs)
obj.url_root = self.url_root
# Append child objects
# TODO this should recurse in the case we're getting back more
# complex argument listings
yield obj
def add_object(self, obj):
"""Add object to local and app environment storage
:param obj: Instance of a .NET object
"""
if obj.top_level_object:
if isinstance(obj, DotNetNamespace):
self.namespaces[obj.name] = obj
self.objects[obj.id] = obj
def organize_objects(self):
"""Organize objects and namespaces"""
def _render_children(obj):
for child in obj.children_strings:
child_object = self.objects.get(child)
if child_object:
obj.item_map[child_object.plural].append(child_object)
obj.children.append(child_object)
for key in obj.item_map:
obj.item_map[key].sort()
def _recurse_ns(obj):
if not obj:
return
namespace = obj.top_namespace
if namespace is not None:
ns_obj = self.top_namespaces.get(namespace)
if ns_obj is None or not isinstance(ns_obj, DotNetNamespace):
for ns_obj in self.create_class(
{"uid": namespace, "type": "namespace"}
):
self.top_namespaces[ns_obj.id] = ns_obj
if obj not in ns_obj.children and namespace != obj.id:
ns_obj.children.append(obj)
for obj in self.objects.values():
_render_children(obj)
_recurse_ns(obj)
# Clean out dead namespaces
for key, namespace in self.top_namespaces.copy().items():
if not namespace.children:
del self.top_namespaces[key]
for key, namespace in self.namespaces.copy().items():
if not namespace.children:
del self.namespaces[key]
def output_rst(self, root, source_suffix):
if not self.objects:
raise ExtensionError("No API objects exist. Can't continue")
for _, obj in sphinx.util.status_iterator(
self.objects.items(),
bold("[AutoAPI] ") + "Rendering Data... ",
length=len(self.objects),
stringify_func=(lambda x: x[0]),
):
if not obj or not obj.top_level_object:
continue
rst = obj.render()
if not rst:
continue
detail_dir = os.path.join(root, obj.pathname)
ensuredir(detail_dir)
path = os.path.join(detail_dir, "%s%s" % ("index", source_suffix))
with open(path, "wb") as detail_file:
detail_file.write(rst.encode("utf-8"))
# Render Top Index
top_level_index = os.path.join(root, "index.rst")
with open(top_level_index, "wb") as top_level_file:
content = self.jinja_env.get_template("index.rst")
top_level_file.write(
content.render(pages=self.namespaces.values()).encode("utf-8")
)
@staticmethod
def build_finished(app, _):
if app.verbosity > 1:
LOGGER.info(bold("[AutoAPI] ") + darkgreen("Cleaning generated .yml files"))
if os.path.exists(DotNetSphinxMapper.DOCFX_OUTPUT_PATH):
shutil.rmtree(DotNetSphinxMapper.DOCFX_OUTPUT_PATH)
class DotNetPythonMapper(PythonMapperBase):
"""Base .NET object representation
:param references: object reference list from docfx
:type references: list of dict objects
"""
language = "dotnet"
def __init__(self, obj, **kwargs):
self.references = dict(
(obj.get("uid"), obj)
for obj in kwargs.pop("references", [])
if "uid" in obj
)
super(DotNetPythonMapper, self).__init__(obj, **kwargs)
# Always exist
self.id = obj.get("uid", obj.get("id"))
self.definition = obj.get("definition", self.id)
self.name = obj.get("fullName", self.definition)
# Optional
self.fullname = obj.get("fullName")
self.summary = self.transform_doc_comments(obj.get("summary", ""))
self.parameters = []
self.items = obj.get("items", [])
self.children_strings = obj.get("children", [])
self.children = []
self.item_map = defaultdict(list)
self.inheritance = []
self.assemblies = obj.get("assemblies", [])
# Syntax example and parameter list
syntax = obj.get("syntax", None)
self.example = ""
if syntax is not None:
# Code example
try:
self.example = syntax["content"]
except (KeyError, TypeError):
traceback.print_exc()
self.parameters = []
for param in syntax.get("parameters", []):
if "id" in param:
self.parameters.append(
{
"name": param.get("id"),
"type": self.resolve_spec_identifier(param.get("type")),
"desc": self.transform_doc_comments(
param.get("description", "")
),
}
)
self.returns = {}
self.returns["type"] = self.resolve_spec_identifier(
syntax.get("return", {}).get("type")
)
self.returns["description"] = self.transform_doc_comments(
syntax.get("return", {}).get("description")
)
# Inheritance
# TODO Support more than just a class type here, should support enum/etc
self.inheritance = [
DotNetClass({"uid": name, "name": name}, jinja_env=self.jinja_env)
for name in obj.get("inheritance", [])
]
def __str__(self):
return "<{cls} {id}>".format(cls=self.__class__.__name__, id=self.id)
@property
def pathname(self):
"""Sluggified path for filenames
Slugs to a filename using the follow steps
* Decode unicode to approximate ascii
* Remove existing hypens
* Substitute hyphens for non-word characters
* Break up the string as paths
"""
slug = self.name
try:
slug = self.name.split("(")[0]
except IndexError:
pass
slug = unidecode.unidecode(slug)
slug = slug.replace("-", "")
slug = re.sub(r"[^\w\.]+", "-", slug).strip("-")
return os.path.join(*slug.split("."))
@property
def short_name(self):
"""Shorten name property"""
return self.name.split(".")[-1]
@property
def edit_link(self):
try:
repo = self.source["remote"]["repo"].replace(".git", "")
path = self.path
return "{repo}/blob/master/{path}".format(repo=repo, path=path)
except KeyError:
return ""
@property
def source(self):
return self.obj.get("source")
@property
def path(self):
return self.source["path"]
@property
def namespace(self):
pieces = self.id.split(".")[:-1]
if pieces:
return ".".join(pieces)
return None
@property
def top_namespace(self):
pieces = self.id.split(".")[:2]
if pieces:
return ".".join(pieces)
return None
@property
def ref_type(self):
return self.type
@property
def ref_directive(self):
return self.type
@property
def ref_name(self):
"""Return object name suitable for use in references
Escapes several known strings that cause problems, including the
following reference syntax::
:dotnet:cls:`Foo.Bar<T>`
As the `<T>` notation is also special syntax in references, indicating
the reference to Foo.Bar should be named T.
See: http://sphinx-doc.org/domains.html#role-cpp:any
"""
return self.name.replace("<", r"\<").replace("`", r"\`")
@property
def ref_short_name(self):
"""Same as above, return the truncated name instead"""
return self.ref_name.split(".")[-1]
@staticmethod
def transform_doc_comments(text):
"""
Parse XML content for references and other syntax.
This avoids an LXML dependency, we only need to parse out a small subset
of elements here. Iterate over string to reduce regex pattern complexity
and make substitutions easier
.. seealso::
`Doc comment reference <https://msdn.microsoft.com/en-us/library/5ast78ax.aspx>`
Reference on XML documentation comment syntax
"""
try:
while True:
found = DOC_COMMENT_SEE_PATTERN.search(text)
if found is None:
break
ref = found.group("attr_value").replace("<", r"\<").replace("`", r"\`")
reftype = "any"
replacement = ""
# Given the pattern of `\w:\w+`, inspect first letter of
# reference for identity type
if ref[1] == ":" and ref[0] in DOC_COMMENT_IDENTITIES:
reftype = DOC_COMMENT_IDENTITIES[ref[:1]]
ref = ref[2:]
replacement = ":{reftype}:`{ref}`".format(reftype=reftype, ref=ref)
elif ref[:2] == "!:":
replacement = ref[2:]
else:
replacement = ":any:`{ref}`".format(ref=ref)
# Escape following text
text_end = text[found.end() :]
text_start = text[: found.start()]
text_end = re.sub(r"^(\S)", r"\\\1", text_end)
text_start = re.sub(r"(\S)$", r"\1 ", text_start)
text = "".join([text_start, replacement, text_end])
while True:
found = DOC_COMMENT_PARAM_PATTERN.search(text)
if found is None:
break
# Escape following text
text_end = text[found.end() :]
text_start = text[: found.start()]
text_end = re.sub(r"^(\S)", r"\\\1", text_end)
text_start = re.sub(r"(\S)$", r"\1 ", text_start)
text = "".join(
[text_start, "``", found.group("attr_value"), "``", text_end]
)
except TypeError:
pass
return text
def resolve_spec_identifier(self, obj_name):
"""Find reference name based on spec identifier
Spec identifiers are used in parameter and return type definitions, but
should be a user-friendly version instead. Use docfx ``references``
lookup mapping for resolution.
If the spec identifier reference has a ``spec.csharp`` key, this implies
a compound reference that should be linked in a special way. Resolve to
a nested reference, with the corrected nodes.
.. note::
This uses a special format that is interpreted by the domain for
parameter type and return type fields.
:param obj_name: spec identifier to resolve to a correct reference
:returns: resolved string with one or more references
:rtype: str
"""
ref = self.references.get(obj_name)
if ref is None:
return obj_name
resolved = ref.get("fullName", obj_name)
spec = ref.get("spec.csharp", [])
parts = []
for part in spec:
if part.get("name") == "<":
parts.append("{")
elif part.get("name") == ">":
parts.append("}")
elif "fullName" in part and "uid" in part:
parts.append("{fullName}<{uid}>".format(**part))
elif "uid" in part:
parts.append(part["uid"])
elif "fullName" in part:
parts.append(part["fullName"])
if parts:
resolved = "".join(parts)
return resolved
class DotNetNamespace(DotNetPythonMapper):
type = "namespace"
ref_directive = "ns"
plural = "namespaces"
top_level_object = True
class DotNetMethod(DotNetPythonMapper):
type = "method"
ref_directive = "meth"
plural = "methods"
class DotNetOperator(DotNetPythonMapper):
type = "operator"
ref_directive = "op"
plural = "operators"
class DotNetProperty(DotNetPythonMapper):
type = "property"
ref_directive = "prop"
plural = "properties"
class DotNetEnum(DotNetPythonMapper):
type = "enum"
ref_type = "enumeration"
ref_directive = "enum"
plural = "enumerations"
top_level_object = True
class DotNetStruct(DotNetPythonMapper):
type = "struct"
ref_type = "structure"
ref_directive = "struct"
plural = "structures"
top_level_object = True
class DotNetConstructor(DotNetPythonMapper):
type = "constructor"
ref_directive = "ctor"
plural = "constructors"
class DotNetInterface(DotNetPythonMapper):
type = "interface"
ref_directive = "iface"
plural = "interfaces"
top_level_object = True
class DotNetDelegate(DotNetPythonMapper):
type = "delegate"
ref_directive = "del"
plural = "delegates"
top_level_object = True
class DotNetClass(DotNetPythonMapper):
type = "class"
ref_directive = "cls"
plural = "classes"
top_level_object = True
class DotNetField(DotNetPythonMapper):
type = "field"
plural = "fields"
class DotNetEvent(DotNetPythonMapper):
type = "event"
plural = "events"
ALL_CLASSES = [
DotNetNamespace,
DotNetClass,
DotNetEnum,
DotNetStruct,
DotNetInterface,
DotNetDelegate,
DotNetOperator,
DotNetProperty,
DotNetMethod,
DotNetConstructor,
DotNetField,
DotNetEvent,
]