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import shutil
import subprocess
from typing import Any
from collections.abc import Iterable
from ._error import CruException
class CruExternalToolError(CruException):
def __init__(self, message: str, tool: str, *args, **kwargs) -> None:
super().__init__(message, *args, **kwargs)
self._tool = tool
@property
def tool(self) -> str:
return self._tool
class CruExternalToolNotFoundError(CruExternalToolError):
def __init__(self, message: str | None, tool: str, *args, **kwargs) -> None:
super().__init__(
message or f"Could not find binary for {tool}.", tool, *args, **kwargs
)
class CruExternalToolRunError(CruExternalToolError):
def __init__(
self,
message: str,
tool: str,
tool_args: Iterable[str],
tool_error: Any,
*args,
**kwargs,
) -> None:
super().__init__(message, tool, *args, **kwargs)
self._tool_args = list(tool_args)
self._tool_error = tool_error
@property
def tool_args(self) -> list[str]:
return self._tool_args
@property
def tool_error(self) -> Any:
return self._tool_error
class ExternalTool:
def __init__(self, bin: str) -> None:
self._bin = bin
@property
def bin(self) -> str:
return self._bin
@bin.setter
def bin(self, value: str) -> None:
self._bin = value
@property
def bin_path(self) -> str:
real_bin = shutil.which(self.bin)
if not real_bin:
raise CruExternalToolNotFoundError(None, self.bin)
return real_bin
def run(
self, *process_args: str, **subprocess_kwargs
) -> subprocess.CompletedProcess:
try:
return subprocess.run(
[self.bin_path] + list(process_args), **subprocess_kwargs
)
except subprocess.CalledProcessError as e:
raise CruExternalToolError("Subprocess failed.", self.bin) from e
except OSError as e:
raise CruExternalToolError("Failed to start subprocess", self.bin) from e
def run_get_output(self, *process_args: str, **subprocess_kwargs) -> Any:
process = self.run(*process_args, capture_output=True, **subprocess_kwargs)
return process.stdout
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