ytdl-sub/tools/docgen/scripting_functions.py
Jesse Bannon 79ba60021c
[BACKEND] Proper functions with docstrings (#1061)
Reimplement some of the 'hidden' functions, including `%regex_capture_many`, as standard functions with docstrings
2024-09-25 23:24:49 -07:00

87 lines
3 KiB
Python

import inspect
from pathlib import Path
from typing import Any
from typing import Dict
from typing import Optional
from typing import Type
from tools.docgen.docgen import DocGen
from tools.docgen.utils import camel_case_to_human
from tools.docgen.utils import line_section
from tools.docgen.utils import section
from tools.docgen.utils import static_methods
from ytdl_sub.entries.script.custom_functions import CustomFunctions
from ytdl_sub.script.functions import Functions
from ytdl_sub.script.utils.type_checking import FunctionSpec
def maybe_get_function_name(function_name: str) -> Optional[str]:
if function_name in ["register"]:
return None
if function_name.endswith("_"):
return function_name[:-1]
return function_name
def function_class_to_name(obj: Type[Any]) -> str:
assert "Functions" in obj.__name__
return camel_case_to_human(obj.__name__)
def function_type_hinting(display_function_name: str, function: Any) -> str:
spec = FunctionSpec.from_callable(name=display_function_name, callable_ref=function)
out = ":spec: ``"
out += display_function_name
out += spec.human_readable_input_args()
out += " -> "
out += spec.human_readable_output_type()
out += "``\n\n"
return out
def get_function_docstring(
function_name: str, function: Any, level: int, display_function_name: Optional[str] = None
) -> str:
display_function_name = display_function_name if display_function_name else function_name
docs = section(display_function_name, level=level)
docs += function_type_hinting(display_function_name=display_function_name, function=function)
docs += inspect.cleandoc(function.__doc__)
docs += "\n"
return docs
class ScriptingFunctionsDocGen(DocGen):
LOCATION = Path("docs/source/config_reference/scripting/scripting_functions.rst")
@classmethod
def generate(cls) -> str:
docs = section("Scripting Functions", level=0)
parent_objs: Dict[str, Type[Any]] = {
function_class_to_name(obj): obj for obj in Functions.__bases__
}
parent_objs["Ytdl-Sub Functions"] = CustomFunctions
for idx, name in enumerate(sorted(parent_objs.keys())):
docs += line_section(section_idx=idx)
docs += section(name, level=1)
for function_name in static_methods(parent_objs[name]):
if display_function_name := maybe_get_function_name(function_name):
try:
docs += get_function_docstring(
function_name=function_name,
display_function_name=display_function_name,
function=getattr(parent_objs[name], function_name),
level=2,
)
except Exception as exc:
raise ValueError(
f"Invalid docs for function {display_function_name}"
) from exc
return docs