def _run_infer_command_get_output()

in client/commands/infer.py [0:0]

• 35 lines of code
• 5 McCabe index (conditional complexity)

def _run_infer_command_get_output(command: Sequence[str]) -> str:
    with backend_arguments.backend_log_file(prefix="pyre_infer") as log_file:
        with start.background_logging(Path(log_file.name)):
            result = subprocess.run(
                command,
                stdout=subprocess.PIPE,
                stderr=log_file.file,
                universal_newlines=True,
            )
            return_code = result.returncode

            # Interpretation of the return code needs to be kept in sync with
            # `source/command/inferCommand.ml`.
            if return_code == 0:
                return result.stdout
            elif return_code == 1:
                raise commands.ClientException(
                    message="Pyre encountered an internal failure",
                    exit_code=commands.ExitCode.FAILURE,
                )
            elif return_code == 2:
                raise commands.ClientException(
                    message="Pyre encountered a failure within buck.",
                    exit_code=commands.ExitCode.BUCK_INTERNAL_ERROR,
                )
            elif return_code == 3:
                raise commands.ClientException(
                    message="Pyre encountered an error when building the buck targets.",
                    exit_code=commands.ExitCode.BUCK_USER_ERROR,
                )
            else:
                raise commands.ClientException(
                    message=(
                        "Infer command exited with unexpected return code: "
                        f"{return_code}."
                    ),
                    exit_code=commands.ExitCode.FAILURE,
                )