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|
#!/usr/bin/env python
import ast
import os
import json
import re
import sys
from collections import OrderedDict
TOOL_ENTRY_FUNC = "run"
def main(is_tool=True):
scriptfile = sys.argv[1]
is_tool = os.path.dirname(scriptfile) == "tools"
with open(scriptfile, "r", encoding="utf-8") as f:
contents = f.read()
functions = extract_functions(contents, is_tool)
declarations = []
for function in functions:
func_name, docstring, func_args = function
description, params = parse_docstring(docstring)
declarations.append(
build_declaration(func_name, description, params, func_args)
)
if is_tool:
name = os.path.splitext(os.path.basename(scriptfile))[0]
if declarations:
declarations = declarations[0:1]
declarations[0]["name"] = name
print(json.dumps(declarations, indent=2))
def extract_functions(contents: str, is_tool: bool):
tree = ast.parse(contents)
output = []
for node in ast.walk(tree):
if not isinstance(node, ast.FunctionDef):
continue
func_name = node.name
if func_name.startswith("_"):
continue
if is_tool and func_name != TOOL_ENTRY_FUNC:
continue
docstring = ast.get_docstring(node) or ""
func_args = OrderedDict()
for arg in node.args.args:
arg_name = arg.arg
arg_type = get_arg_type(arg.annotation)
func_args[arg_name] = arg_type
output.append((func_name, docstring, func_args))
return output
def get_arg_type(annotation) -> str:
if annotation is None:
return ""
elif isinstance(annotation, ast.Name):
return annotation.id
elif isinstance(annotation, ast.Subscript):
if isinstance(annotation.value, ast.Name):
type_name = annotation.value.id
if type_name == "List":
child = get_arg_type(annotation.slice)
return f"list[{child}]"
if type_name == "Literal":
literals = [ast.unparse(el) for el in annotation.slice.elts]
return f"{'|'.join(literals)}"
if type_name == "Optional":
child = get_arg_type(annotation.slice)
return f"{child}?"
return "any"
def parse_docstring(docstring: str):
lines = docstring.splitlines()
description = ""
rawParams = []
is_in_args = False
for line in lines:
if not is_in_args:
if line.startswith("Args:"):
is_in_args = True
else:
description += f"\n{line}"
continue
else:
if re.search(r"^\s+", line):
rawParams.append(line.strip())
else:
break
params = {}
for rawParam in rawParams:
name, type_, param_description = parse_param(rawParam)
params[name] = (type_, param_description)
return (description.strip(), params)
def parse_param(raw_param: str):
name = ""
description = ""
type_from_comment = ""
if ":" in raw_param:
name, description = raw_param.split(":", 1)
name = name.strip()
description = description.strip()
else:
name = raw_param
if " " in name:
name, type_from_comment = name.split(" ", 1)
type_from_comment = type_from_comment.strip()
if type_from_comment.startswith("(") and type_from_comment.endswith(")"):
type_from_comment = type_from_comment[1:-1]
type_parts = [value.strip() for value in type_from_comment.split(",")]
type_ = type_parts[0]
if "optional" in type_parts[1:]:
type_ = f"{type_}?"
return (name, type_, description)
def build_declaration(
name: str, description: str, params: dict, args: OrderedDict[str, str]
) -> dict[str, dict]:
declaration = {
"name": name,
"description": description,
"parameters": {
"type": "object",
"properties": {},
},
}
schema = declaration["parameters"]
required_params = []
for arg_name, arg_type in args.items():
type_ = arg_type
description = ""
required = True
if params.get(arg_name):
param_type, description = params[arg_name]
if not type_:
type_ = param_type
if type_.endswith("?"):
type_ = type_[:-1]
required = False
try:
property = build_property(type_, description)
except:
raise ValueError(f"Unable to parse arg '{arg_name}' of function '{name}'")
schema["properties"][arg_name] = property
if required:
required_params.append(arg_name)
if required_params:
schema["required"] = required_params
return declaration
def build_property(type_: str, description: str):
property = {}
if "|" in type_:
property["type"] = "string"
property["enum"] = type_.replace("'", "").split("|")
elif type_ == "bool":
property["type"] = "boolean"
elif type_ == "str":
property["type"] = "string"
elif type_ == "int":
property["type"] = "integer"
elif type_ == "float":
property["type"] = "number"
elif type_ == "list[str]":
property["type"] = "array"
property["items"] = {"type": "string"}
elif type_ == "":
property["type"] = "string"
else:
raise ValueError(f"Unsupported type `{type_}`")
property["description"] = description
return property
if __name__ == "__main__":
main()
|
