mirror of
https://github.com/leonvanzyl/autocoder.git
synced 2026-01-30 06:12:06 +00:00
32c7778ee5
When running multiple projects simultaneously, UI would show mixed data because the manager registry used only project_name as key. Projects with the same name but different paths shared the same manager instance. Changed manager registries to use composite key (project_name, resolved_path): - server/services/process_manager.py: AgentProcessManager registry - server/services/dev_server_manager.py: DevServerProcessManager registry This ensures that: - /old/my-app and /new/my-app get separate managers - Multiple browser tabs viewing different projects stay isolated - Project renames don't cause callback contamination Fixes: leonvanzyl/autocoder#71 Also fixes: leonvanzyl/autocoder#62 (progress bar sync) Also fixes: leonvanzyl/autocoder#61 (features missing in kanban) Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
635 lines
24 KiB
Python
635 lines
24 KiB
Python
"""
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Agent Process Manager
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=====================
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Manages the lifecycle of agent subprocesses per project.
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Provides start/stop/pause/resume functionality with cross-platform support.
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"""
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import asyncio
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import logging
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import os
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import re
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import subprocess
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import sys
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import threading
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from datetime import datetime
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from pathlib import Path
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from typing import Awaitable, Callable, Literal, Set
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import psutil
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# Add parent directory to path for shared module imports
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sys.path.insert(0, str(Path(__file__).parent.parent.parent))
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from auth import AUTH_ERROR_HELP_SERVER as AUTH_ERROR_HELP # noqa: E402
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from auth import is_auth_error
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from server.utils.process_utils import kill_process_tree
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logger = logging.getLogger(__name__)
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# Patterns for sensitive data that should be redacted from output
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SENSITIVE_PATTERNS = [
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r'sk-[a-zA-Z0-9]{20,}', # Anthropic API keys
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r'ANTHROPIC_API_KEY=[^\s]+',
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r'api[_-]?key[=:][^\s]+',
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r'token[=:][^\s]+',
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r'password[=:][^\s]+',
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r'secret[=:][^\s]+',
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r'ghp_[a-zA-Z0-9]{36,}', # GitHub personal access tokens
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r'gho_[a-zA-Z0-9]{36,}', # GitHub OAuth tokens
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r'ghs_[a-zA-Z0-9]{36,}', # GitHub server tokens
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r'ghr_[a-zA-Z0-9]{36,}', # GitHub refresh tokens
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r'aws[_-]?access[_-]?key[=:][^\s]+', # AWS keys
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r'aws[_-]?secret[=:][^\s]+',
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]
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def sanitize_output(line: str) -> str:
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"""Remove sensitive information from output lines."""
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for pattern in SENSITIVE_PATTERNS:
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line = re.sub(pattern, '[REDACTED]', line, flags=re.IGNORECASE)
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return line
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class AgentProcessManager:
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"""
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Manages agent subprocess lifecycle for a single project.
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Provides start/stop/pause/resume with cross-platform support via psutil.
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Supports multiple output callbacks for WebSocket clients.
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"""
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def __init__(
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self,
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project_name: str,
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project_dir: Path,
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root_dir: Path,
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):
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"""
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Initialize the process manager.
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Args:
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project_name: Name of the project
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project_dir: Absolute path to the project directory
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root_dir: Root directory of the autonomous-coding-ui project
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"""
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self.project_name = project_name
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self.project_dir = project_dir
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self.root_dir = root_dir
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self.process: subprocess.Popen | None = None
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self._status: Literal["stopped", "running", "paused", "crashed"] = "stopped"
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self.started_at: datetime | None = None
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self._output_task: asyncio.Task | None = None
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self.yolo_mode: bool = False # YOLO mode for rapid prototyping
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self.model: str | None = None # Model being used
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self.parallel_mode: bool = False # Parallel execution mode
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self.max_concurrency: int | None = None # Max concurrent agents
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self.testing_agent_ratio: int = 1 # Regression testing agents (0-3)
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# Support multiple callbacks (for multiple WebSocket clients)
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self._output_callbacks: Set[Callable[[str], Awaitable[None]]] = set()
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self._status_callbacks: Set[Callable[[str], Awaitable[None]]] = set()
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self._callbacks_lock = threading.Lock()
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# Lock file to prevent multiple instances (stored in project directory)
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self.lock_file = self.project_dir / ".agent.lock"
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@property
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def status(self) -> Literal["stopped", "running", "paused", "crashed"]:
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return self._status
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@status.setter
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def status(self, value: Literal["stopped", "running", "paused", "crashed"]):
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old_status = self._status
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self._status = value
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if old_status != value:
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self._notify_status_change(value)
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def _notify_status_change(self, status: str) -> None:
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"""Notify all registered callbacks of status change."""
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with self._callbacks_lock:
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callbacks = list(self._status_callbacks)
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for callback in callbacks:
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try:
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# Schedule the callback in the event loop
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loop = asyncio.get_running_loop()
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loop.create_task(self._safe_callback(callback, status))
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except RuntimeError:
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# No running event loop
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pass
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async def _safe_callback(self, callback: Callable, *args) -> None:
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"""Safely execute a callback, catching and logging any errors."""
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try:
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await callback(*args)
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except Exception as e:
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logger.warning(f"Callback error: {e}")
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def add_output_callback(self, callback: Callable[[str], Awaitable[None]]) -> None:
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"""Add a callback for output lines."""
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with self._callbacks_lock:
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self._output_callbacks.add(callback)
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def remove_output_callback(self, callback: Callable[[str], Awaitable[None]]) -> None:
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"""Remove an output callback."""
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with self._callbacks_lock:
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self._output_callbacks.discard(callback)
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def add_status_callback(self, callback: Callable[[str], Awaitable[None]]) -> None:
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"""Add a callback for status changes."""
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with self._callbacks_lock:
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self._status_callbacks.add(callback)
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def remove_status_callback(self, callback: Callable[[str], Awaitable[None]]) -> None:
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"""Remove a status callback."""
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with self._callbacks_lock:
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self._status_callbacks.discard(callback)
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@property
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def pid(self) -> int | None:
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return self.process.pid if self.process else None
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def _check_lock(self) -> bool:
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"""Check if another agent is already running for this project.
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Uses PID + process creation time to handle PID reuse on Windows.
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"""
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if not self.lock_file.exists():
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return True
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try:
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lock_content = self.lock_file.read_text().strip()
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# Support both legacy format (just PID) and new format (PID:CREATE_TIME)
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if ":" in lock_content:
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pid_str, create_time_str = lock_content.split(":", 1)
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pid = int(pid_str)
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stored_create_time = float(create_time_str)
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else:
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# Legacy format - just PID
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pid = int(lock_content)
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stored_create_time = None
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if psutil.pid_exists(pid):
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# Check if it's actually our agent process
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try:
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proc = psutil.Process(pid)
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# Verify it's the same process using creation time (handles PID reuse)
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if stored_create_time is not None:
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# Allow 1 second tolerance for creation time comparison
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if abs(proc.create_time() - stored_create_time) > 1.0:
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# Different process reused the PID - stale lock
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self.lock_file.unlink(missing_ok=True)
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return True
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cmdline = " ".join(proc.cmdline())
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if "autonomous_agent_demo.py" in cmdline:
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return False # Another agent is running
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except (psutil.NoSuchProcess, psutil.AccessDenied):
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pass
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# Stale lock file
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self.lock_file.unlink(missing_ok=True)
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return True
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except (ValueError, OSError):
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self.lock_file.unlink(missing_ok=True)
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return True
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def _create_lock(self) -> bool:
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"""Atomically create lock file with current process PID and creation time.
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Returns:
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True if lock was created successfully, False if lock already exists.
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"""
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self.lock_file.parent.mkdir(parents=True, exist_ok=True)
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if not self.process:
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return False
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try:
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# Get process creation time for PID reuse detection
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create_time = psutil.Process(self.process.pid).create_time()
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lock_content = f"{self.process.pid}:{create_time}"
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# Atomic lock creation using O_CREAT | O_EXCL
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# This prevents TOCTOU race conditions
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import os
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fd = os.open(str(self.lock_file), os.O_CREAT | os.O_EXCL | os.O_WRONLY)
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os.write(fd, lock_content.encode())
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os.close(fd)
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return True
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except FileExistsError:
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# Another process beat us to it
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return False
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except (psutil.NoSuchProcess, OSError) as e:
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logger.warning(f"Failed to create lock file: {e}")
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return False
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def _remove_lock(self) -> None:
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"""Remove lock file."""
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self.lock_file.unlink(missing_ok=True)
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async def _broadcast_output(self, line: str) -> None:
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"""Broadcast output line to all registered callbacks."""
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with self._callbacks_lock:
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callbacks = list(self._output_callbacks)
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for callback in callbacks:
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await self._safe_callback(callback, line)
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async def _stream_output(self) -> None:
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"""Stream process output to callbacks."""
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if not self.process or not self.process.stdout:
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return
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auth_error_detected = False
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output_buffer = [] # Buffer recent lines for auth error detection
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try:
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loop = asyncio.get_running_loop()
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while True:
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# Use run_in_executor for blocking readline
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line = await loop.run_in_executor(
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None, self.process.stdout.readline
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)
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if not line:
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break
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decoded = line.decode("utf-8", errors="replace").rstrip()
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sanitized = sanitize_output(decoded)
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# Buffer recent output for auth error detection
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output_buffer.append(decoded)
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if len(output_buffer) > 20:
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output_buffer.pop(0)
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# Check for auth errors
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if not auth_error_detected and is_auth_error(decoded):
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auth_error_detected = True
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# Broadcast auth error help message
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for help_line in AUTH_ERROR_HELP.strip().split('\n'):
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await self._broadcast_output(help_line)
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await self._broadcast_output(sanitized)
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except asyncio.CancelledError:
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raise
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except Exception as e:
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logger.warning(f"Output streaming error: {e}")
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finally:
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# Check if process ended
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if self.process and self.process.poll() is not None:
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exit_code = self.process.returncode
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if exit_code != 0 and self.status == "running":
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# Check buffered output for auth errors if we haven't detected one yet
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if not auth_error_detected:
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combined_output = '\n'.join(output_buffer)
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if is_auth_error(combined_output):
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for help_line in AUTH_ERROR_HELP.strip().split('\n'):
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await self._broadcast_output(help_line)
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self.status = "crashed"
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elif self.status == "running":
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self.status = "stopped"
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self._remove_lock()
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async def start(
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self,
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yolo_mode: bool = False,
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model: str | None = None,
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parallel_mode: bool = False,
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max_concurrency: int | None = None,
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testing_agent_ratio: int = 1,
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) -> tuple[bool, str]:
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"""
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Start the agent as a subprocess.
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Args:
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yolo_mode: If True, run in YOLO mode (skip testing agents)
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model: Model to use (e.g., claude-opus-4-5-20251101)
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parallel_mode: DEPRECATED - ignored, always uses unified orchestrator
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max_concurrency: Max concurrent coding agents (1-5, default 1)
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testing_agent_ratio: Number of regression testing agents (0-3, default 1)
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Returns:
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Tuple of (success, message)
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"""
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if self.status in ("running", "paused"):
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return False, f"Agent is already {self.status}"
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if not self._check_lock():
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return False, "Another agent instance is already running for this project"
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# Store for status queries
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self.yolo_mode = yolo_mode
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self.model = model
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self.parallel_mode = True # Always True now (unified orchestrator)
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self.max_concurrency = max_concurrency or 1
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self.testing_agent_ratio = testing_agent_ratio
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# Build command - unified orchestrator with --concurrency
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cmd = [
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sys.executable,
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"-u", # Force unbuffered stdout/stderr for real-time output
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str(self.root_dir / "autonomous_agent_demo.py"),
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"--project-dir",
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str(self.project_dir.resolve()),
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]
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# Add --model flag if model is specified
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if model:
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cmd.extend(["--model", model])
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# Add --yolo flag if YOLO mode is enabled
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if yolo_mode:
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cmd.append("--yolo")
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# Add --concurrency flag (unified orchestrator always uses this)
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cmd.extend(["--concurrency", str(max_concurrency or 1)])
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# Add testing agent configuration
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cmd.extend(["--testing-ratio", str(testing_agent_ratio)])
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try:
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# Start subprocess with piped stdout/stderr
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# Use project_dir as cwd so Claude SDK sandbox allows access to project files
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# IMPORTANT: Set PYTHONUNBUFFERED to ensure output isn't delayed
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self.process = subprocess.Popen(
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cmd,
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stdout=subprocess.PIPE,
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stderr=subprocess.STDOUT,
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cwd=str(self.project_dir),
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env={**os.environ, "PYTHONUNBUFFERED": "1"},
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)
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# Atomic lock creation - if it fails, another process beat us
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if not self._create_lock():
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# Kill the process we just started since we couldn't get the lock
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self.process.terminate()
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try:
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self.process.wait(timeout=5)
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except subprocess.TimeoutExpired:
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self.process.kill()
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self.process = None
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return False, "Another agent instance is already running for this project"
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self.started_at = datetime.now()
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self.status = "running"
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# Start output streaming task
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self._output_task = asyncio.create_task(self._stream_output())
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return True, f"Agent started with PID {self.process.pid}"
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except Exception as e:
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logger.exception("Failed to start agent")
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return False, f"Failed to start agent: {e}"
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async def stop(self) -> tuple[bool, str]:
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"""
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Stop the agent and all its child processes (SIGTERM then SIGKILL if needed).
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CRITICAL: Kills entire process tree to prevent orphaned coding/testing agents.
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Returns:
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Tuple of (success, message)
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"""
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if not self.process or self.status == "stopped":
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return False, "Agent is not running"
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try:
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# Cancel output streaming
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if self._output_task:
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self._output_task.cancel()
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try:
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await self._output_task
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except asyncio.CancelledError:
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pass
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# CRITICAL: Kill entire process tree, not just orchestrator
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# This ensures all spawned coding/testing agents are also terminated
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proc = self.process # Capture reference before async call
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loop = asyncio.get_running_loop()
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result = await loop.run_in_executor(None, kill_process_tree, proc, 10.0)
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logger.debug(
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"Process tree kill result: status=%s, children=%d (terminated=%d, killed=%d)",
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result.status, result.children_found,
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result.children_terminated, result.children_killed
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)
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self._remove_lock()
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self.status = "stopped"
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self.process = None
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self.started_at = None
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self.yolo_mode = False # Reset YOLO mode
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self.model = None # Reset model
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self.parallel_mode = False # Reset parallel mode
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self.max_concurrency = None # Reset concurrency
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self.testing_agent_ratio = 1 # Reset testing ratio
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return True, "Agent stopped"
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except Exception as e:
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logger.exception("Failed to stop agent")
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return False, f"Failed to stop agent: {e}"
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async def pause(self) -> tuple[bool, str]:
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"""
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Pause the agent using psutil for cross-platform support.
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Returns:
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Tuple of (success, message)
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"""
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if not self.process or self.status != "running":
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return False, "Agent is not running"
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try:
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proc = psutil.Process(self.process.pid)
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proc.suspend()
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self.status = "paused"
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return True, "Agent paused"
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except psutil.NoSuchProcess:
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self.status = "crashed"
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self._remove_lock()
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return False, "Agent process no longer exists"
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except Exception as e:
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logger.exception("Failed to pause agent")
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return False, f"Failed to pause agent: {e}"
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async def resume(self) -> tuple[bool, str]:
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"""
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Resume a paused agent.
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Returns:
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Tuple of (success, message)
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"""
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if not self.process or self.status != "paused":
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return False, "Agent is not paused"
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try:
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proc = psutil.Process(self.process.pid)
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proc.resume()
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self.status = "running"
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return True, "Agent resumed"
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except psutil.NoSuchProcess:
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self.status = "crashed"
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self._remove_lock()
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return False, "Agent process no longer exists"
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except Exception as e:
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logger.exception("Failed to resume agent")
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return False, f"Failed to resume agent: {e}"
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async def healthcheck(self) -> bool:
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"""
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Check if the agent process is still alive.
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Updates status to 'crashed' if process has died unexpectedly.
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Returns:
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True if healthy, False otherwise
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"""
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if not self.process:
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return self.status == "stopped"
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poll = self.process.poll()
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if poll is not None:
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# Process has terminated
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if self.status in ("running", "paused"):
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self.status = "crashed"
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self._remove_lock()
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return False
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return True
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def get_status_dict(self) -> dict:
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"""Get current status as a dictionary."""
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return {
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"status": self.status,
|
|
"pid": self.pid,
|
|
"started_at": self.started_at.isoformat() if self.started_at else None,
|
|
"yolo_mode": self.yolo_mode,
|
|
"model": self.model,
|
|
"parallel_mode": self.parallel_mode,
|
|
"max_concurrency": self.max_concurrency,
|
|
"testing_agent_ratio": self.testing_agent_ratio,
|
|
}
|
|
|
|
|
|
# Global registry of process managers per project with thread safety
|
|
# Key is (project_name, resolved_project_dir) to prevent cross-project contamination
|
|
# when different projects share the same name but have different paths
|
|
_managers: dict[tuple[str, str], AgentProcessManager] = {}
|
|
_managers_lock = threading.Lock()
|
|
|
|
|
|
def get_manager(project_name: str, project_dir: Path, root_dir: Path) -> AgentProcessManager:
|
|
"""Get or create a process manager for a project (thread-safe).
|
|
|
|
Args:
|
|
project_name: Name of the project
|
|
project_dir: Absolute path to the project directory
|
|
root_dir: Root directory of the autonomous-coding-ui project
|
|
"""
|
|
with _managers_lock:
|
|
# Use composite key to prevent cross-project UI contamination (#71)
|
|
key = (project_name, str(project_dir.resolve()))
|
|
if key not in _managers:
|
|
_managers[key] = AgentProcessManager(project_name, project_dir, root_dir)
|
|
return _managers[key]
|
|
|
|
|
|
async def cleanup_all_managers() -> None:
|
|
"""Stop all running agents. Called on server shutdown."""
|
|
with _managers_lock:
|
|
managers = list(_managers.values())
|
|
|
|
for manager in managers:
|
|
try:
|
|
if manager.status != "stopped":
|
|
await manager.stop()
|
|
except Exception as e:
|
|
logger.warning(f"Error stopping manager for {manager.project_name}: {e}")
|
|
|
|
with _managers_lock:
|
|
_managers.clear()
|
|
|
|
|
|
def cleanup_orphaned_locks() -> int:
|
|
"""
|
|
Clean up orphaned lock files from previous server runs.
|
|
|
|
Scans all registered projects for .agent.lock files and removes them
|
|
if the referenced process is no longer running.
|
|
|
|
Returns:
|
|
Number of orphaned lock files cleaned up
|
|
"""
|
|
import sys
|
|
root = Path(__file__).parent.parent.parent
|
|
if str(root) not in sys.path:
|
|
sys.path.insert(0, str(root))
|
|
|
|
from registry import list_registered_projects
|
|
|
|
cleaned = 0
|
|
try:
|
|
projects = list_registered_projects()
|
|
for name, info in projects.items():
|
|
project_path = Path(info.get("path", ""))
|
|
if not project_path.exists():
|
|
continue
|
|
|
|
lock_file = project_path / ".agent.lock"
|
|
if not lock_file.exists():
|
|
continue
|
|
|
|
try:
|
|
lock_content = lock_file.read_text().strip()
|
|
# Support both legacy format (just PID) and new format (PID:CREATE_TIME)
|
|
if ":" in lock_content:
|
|
pid_str, create_time_str = lock_content.split(":", 1)
|
|
pid = int(pid_str)
|
|
stored_create_time = float(create_time_str)
|
|
else:
|
|
# Legacy format - just PID
|
|
pid = int(lock_content)
|
|
stored_create_time = None
|
|
|
|
# Check if process is still running
|
|
if psutil.pid_exists(pid):
|
|
try:
|
|
proc = psutil.Process(pid)
|
|
# Verify it's the same process using creation time (handles PID reuse)
|
|
if stored_create_time is not None:
|
|
if abs(proc.create_time() - stored_create_time) > 1.0:
|
|
# Different process reused the PID - stale lock
|
|
lock_file.unlink(missing_ok=True)
|
|
cleaned += 1
|
|
logger.info("Removed orphaned lock file for project '%s' (PID reused)", name)
|
|
continue
|
|
cmdline = " ".join(proc.cmdline())
|
|
if "autonomous_agent_demo.py" in cmdline:
|
|
# Process is still running, don't remove
|
|
logger.info(
|
|
"Found running agent for project '%s' (PID %d)",
|
|
name, pid
|
|
)
|
|
continue
|
|
except (psutil.NoSuchProcess, psutil.AccessDenied):
|
|
pass
|
|
|
|
# Process not running or not our agent - remove stale lock
|
|
lock_file.unlink(missing_ok=True)
|
|
cleaned += 1
|
|
logger.info("Removed orphaned lock file for project '%s'", name)
|
|
|
|
except (ValueError, OSError) as e:
|
|
# Invalid lock file content - remove it
|
|
logger.warning(
|
|
"Removing invalid lock file for project '%s': %s", name, e
|
|
)
|
|
lock_file.unlink(missing_ok=True)
|
|
cleaned += 1
|
|
|
|
except Exception as e:
|
|
logger.error("Error during orphan cleanup: %s", e)
|
|
|
|
if cleaned:
|
|
logger.info("Cleaned up %d orphaned lock file(s)", cleaned)
|
|
|
|
return cleaned
|