Files
hermes-agent/tools/environments/base.py
teknium1 a183827128 feat: enhance README and improve environment configuration
- Added a new section in the README for Inference Providers, detailing setup instructions for Nous Portal, OpenRouter, and Custom Endpoints, improving user guidance for LLM connections.
- Updated messaging platform setup instructions to include Slack and WhatsApp, providing clearer steps for configuration.
- Introduced a new environment variable, TERMINAL_SANDBOX_DIR, to allow users to customize the sandbox storage location for Docker and Singularity environments.
- Refactored the Docker and Singularity environment classes to utilize the new sandbox directory for persistent workspaces, enhancing organization and usability.
- Improved handling of working directories across various environments, ensuring compatibility and clarity in execution paths.
2026-02-23 21:15:35 -08:00

90 lines
2.8 KiB
Python

"""Base class for all Hermes execution environment backends."""
from abc import ABC, abstractmethod
import os
import subprocess
from pathlib import Path
def get_sandbox_dir() -> Path:
"""Return the host-side root for all sandbox storage (Docker workspaces,
Singularity overlays/SIF cache, etc.).
Configurable via TERMINAL_SANDBOX_DIR. Defaults to ~/.hermes/sandboxes/.
"""
custom = os.getenv("TERMINAL_SANDBOX_DIR")
if custom:
p = Path(custom)
else:
p = Path.home() / ".hermes" / "sandboxes"
p.mkdir(parents=True, exist_ok=True)
return p
class BaseEnvironment(ABC):
"""Common interface for all Hermes execution backends.
Subclasses implement execute() and cleanup(). Shared helpers eliminate
duplicated subprocess boilerplate across backends.
"""
def __init__(self, cwd: str, timeout: int, env: dict = None):
self.cwd = cwd
self.timeout = timeout
self.env = env or {}
@abstractmethod
def execute(self, command: str, cwd: str = "", *,
timeout: int | None = None,
stdin_data: str | None = None) -> dict:
"""Execute a command, return {"output": str, "returncode": int}."""
...
@abstractmethod
def cleanup(self):
"""Release backend resources (container, instance, connection)."""
...
def stop(self):
"""Alias for cleanup (compat with older callers)."""
self.cleanup()
def __del__(self):
try:
self.cleanup()
except Exception:
pass
# ------------------------------------------------------------------
# Shared helpers (eliminate duplication across backends)
# ------------------------------------------------------------------
def _prepare_command(self, command: str) -> str:
"""Transform sudo commands if SUDO_PASSWORD is available."""
from tools.terminal_tool import _transform_sudo_command
return _transform_sudo_command(command)
def _build_run_kwargs(self, timeout: int | None,
stdin_data: str | None = None) -> dict:
"""Build common subprocess.run kwargs for non-interactive execution."""
kw = {
"text": True,
"timeout": timeout or self.timeout,
"encoding": "utf-8",
"errors": "replace",
"stdout": subprocess.PIPE,
"stderr": subprocess.STDOUT,
}
if stdin_data is not None:
kw["input"] = stdin_data
else:
kw["stdin"] = subprocess.DEVNULL
return kw
def _timeout_result(self, timeout: int | None) -> dict:
"""Standard return dict when a command times out."""
return {
"output": f"Command timed out after {timeout or self.timeout}s",
"returncode": 124,
}