frostfs-testlib/shell/interfaces.py
Vladimir Domnich f6ee129354 Implement basic version of local shell
Also added two simple reporters that can be used by the shell to report command execution details.

Signed-off-by: Vladimir Domnich <v.domnich@yadro.com>
2022-09-09 18:12:42 +04:00

59 lines
1.6 KiB
Python

from abc import ABC, abstractmethod
from dataclasses import dataclass
from typing import Optional
@dataclass
class InteractiveInput:
"""
Interactive input for a shell command.
:attr str prompt_pattern: regular expression that defines expected prompt from the command.
:attr str input: user input that should be supplied to the command in response to the prompt.
"""
prompt_pattern: str
input: str
@dataclass
class CommandOptions:
"""
Options that control command execution.
:attr list interactive_inputs: user inputs that should be interactively supplied to
the command during its' execution.
:attr int timeout: timeout for command execution (in seconds).
:attr bool check: controls whether to check return code of the command. Set to False to
ignore non-zero return codes.
"""
interactive_inputs: Optional[list[InteractiveInput]] = None
timeout: int = 30
check: bool = True
@dataclass
class CommandResult:
"""
Represents a result of a command executed via shell.
"""
stdout: str
stderr: str
return_code: int
class Shell(ABC):
"""
Interface of a command shell on some system (local or remote).
"""
@abstractmethod
def exec(self, command: str, options: Optional[CommandOptions] = None) -> CommandResult:
"""
Executes specified command on this shell. To execute interactive command, user inputs
should be specified in *options*.
:param str command: command to execute on the shell.
:param CommandOptions options: options that control command execution.
:return command result.
"""
pass