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import asyncio
import atexit
import importlib
import os
import platform
import sys
import tempfile
from dataclasses import dataclass
from pathlib import Path
from types import ModuleType
from typing import (
Callable,
Dict,
Generator,
List,
Optional,
Tuple,
Union,
)
os.environ["PROTOCOL_BUFFERS_PYTHON_IMPLEMENTATION"] = "python"
root_path = Path(__file__).resolve().parent
inputs_path = root_path.joinpath("inputs")
output_path_reference = root_path.joinpath("output_reference")
output_path_aristaproto = root_path.joinpath("output_aristaproto")
output_path_aristaproto_pydantic = root_path.joinpath("output_aristaproto_pydantic")
def get_files(path, suffix: str) -> Generator[str, None, None]:
for r, dirs, files in os.walk(path):
for filename in [f for f in files if f.endswith(suffix)]:
yield os.path.join(r, filename)
def get_directories(path):
for root, directories, files in os.walk(path):
yield from directories
async def protoc(
path: Union[str, Path],
output_dir: Union[str, Path],
reference: bool = False,
pydantic_dataclasses: bool = False,
):
path: Path = Path(path).resolve()
output_dir: Path = Path(output_dir).resolve()
python_out_option: str = "python_aristaproto_out" if not reference else "python_out"
if pydantic_dataclasses:
plugin_path = Path("src/aristaproto/plugin/main.py")
if "Win" in platform.system():
with tempfile.NamedTemporaryFile(
"w", encoding="UTF-8", suffix=".bat", delete=False
) as tf:
# See https://stackoverflow.com/a/42622705
tf.writelines(
[
"@echo off",
f"\nchdir {os.getcwd()}",
f"\n{sys.executable} -u {plugin_path.as_posix()}",
]
)
tf.flush()
plugin_path = Path(tf.name)
atexit.register(os.remove, plugin_path)
command = [
sys.executable,
"-m",
"grpc.tools.protoc",
f"--plugin=protoc-gen-custom={plugin_path.as_posix()}",
"--experimental_allow_proto3_optional",
"--custom_opt=pydantic_dataclasses",
f"--proto_path={path.as_posix()}",
f"--custom_out={output_dir.as_posix()}",
*[p.as_posix() for p in path.glob("*.proto")],
]
else:
command = [
sys.executable,
"-m",
"grpc.tools.protoc",
f"--proto_path={path.as_posix()}",
f"--{python_out_option}={output_dir.as_posix()}",
*[p.as_posix() for p in path.glob("*.proto")],
]
proc = await asyncio.create_subprocess_exec(
*command, stdout=asyncio.subprocess.PIPE, stderr=asyncio.subprocess.PIPE
)
stdout, stderr = await proc.communicate()
return stdout, stderr, proc.returncode
@dataclass
class TestCaseJsonFile:
json: str
test_name: str
file_name: str
def belongs_to(self, non_symmetrical_json: Dict[str, Tuple[str, ...]]):
return self.file_name in non_symmetrical_json.get(self.test_name, tuple())
def get_test_case_json_data(
test_case_name: str, *json_file_names: str
) -> List[TestCaseJsonFile]:
"""
:return:
A list of all files found in "{inputs_path}/test_case_name" with names matching
f"{test_case_name}.json" or f"{test_case_name}_*.json", OR given by
json_file_names
"""
test_case_dir = inputs_path.joinpath(test_case_name)
possible_file_paths = [
*(test_case_dir.joinpath(json_file_name) for json_file_name in json_file_names),
test_case_dir.joinpath(f"{test_case_name}.json"),
*test_case_dir.glob(f"{test_case_name}_*.json"),
]
result = []
for test_data_file_path in possible_file_paths:
if not test_data_file_path.exists():
continue
with test_data_file_path.open("r") as fh:
result.append(
TestCaseJsonFile(
fh.read(), test_case_name, test_data_file_path.name.split(".")[0]
)
)
return result
def find_module(
module: ModuleType, predicate: Callable[[ModuleType], bool]
) -> Optional[ModuleType]:
"""
Recursively search module tree for a module that matches the search predicate.
Assumes that the submodules are directories containing __init__.py.
Example:
# find module inside foo that contains Test
import foo
test_module = find_module(foo, lambda m: hasattr(m, 'Test'))
"""
if predicate(module):
return module
module_path = Path(*module.__path__)
for sub in [sub.parent for sub in module_path.glob("**/__init__.py")]:
if sub == module_path:
continue
sub_module_path = sub.relative_to(module_path)
sub_module_name = ".".join(sub_module_path.parts)
sub_module = importlib.import_module(f".{sub_module_name}", module.__name__)
if predicate(sub_module):
return sub_module
return None
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