[2026-06-01] Fix duplicate bot startup guards

scripts/start_bot.py

@@ -0,0 +1,113 @@
+import asyncio
+import os
+import subprocess
+import sys
+import time
+from pathlib import Path
+
+
+PROJECT = Path(__file__).resolve().parents[1]
+PID_FILE = PROJECT / "logs" / "bot.pid"
+LOG_FILE = PROJECT / "logs" / "bot_stderr.log"
+
+
+def _taskkill(pid: int) -> None:
+    subprocess.run(["taskkill", "/PID", str(pid), "/F"], capture_output=True, text=True)
+
+
+def _find_bot_pids() -> list[int]:
+    command = (
+        "Get-CimInstance Win32_Process | "
+        "Where-Object { $_.Name -like 'python*' -and "
+        "($_.CommandLine -like '*app/main.py*' "
+        "-or $_.CommandLine -like '*app\\\\main.py*') } | "
+        "Select-Object -ExpandProperty ProcessId"
+    )
+    result = subprocess.run(
+        ["powershell", "-NoProfile", "-Command", command],
+        capture_output=True,
+        text=True,
+    )
+    pids: list[int] = []
+    for line in result.stdout.splitlines():
+        line = line.strip()
+        if line.isdigit():
+            pids.append(int(line))
+    return pids
+
+
+def _kill_existing_bots() -> None:
+    killed: set[int] = set()
+    if PID_FILE.exists():
+        try:
+            pid = int(PID_FILE.read_text(encoding="utf-8").strip())
+            _taskkill(pid)
+            killed.add(pid)
+            print(f"PID file process stopped: {pid}")
+        except Exception as exc:
+            print(f"PID file stop skipped: {exc}")
+        PID_FILE.unlink(missing_ok=True)
+
+    for pid in _find_bot_pids():
+        if pid in killed:
+            continue
+        _taskkill(pid)
+        killed.add(pid)
+        print(f"Existing bot process stopped: {pid}")
+
+    if not killed:
+        print("No existing bot process found")
+
+
+def _start_bot() -> int:
+    PROJECT.joinpath("logs").mkdir(exist_ok=True)
+    env = os.environ.copy()
+    env["PYTHONUNBUFFERED"] = "1"
+    creationflags = 0
+    if hasattr(subprocess, "DETACHED_PROCESS"):
+        creationflags = subprocess.DETACHED_PROCESS | subprocess.CREATE_NEW_PROCESS_GROUP
+
+    with open(LOG_FILE, "a", encoding="utf-8") as log:
+        proc = subprocess.Popen(
+            [sys.executable, "-u", "app/main.py"],
+            cwd=PROJECT,
+            creationflags=creationflags,
+            stdout=log,
+            stderr=subprocess.STDOUT,
+            close_fds=True,
+            env=env,
+        )
+
+    time.sleep(2)
+    if proc.poll() is not None:
+        raise RuntimeError(f"bot process exited during startup: returncode={proc.returncode}")
+
+    PID_FILE.write_text(str(proc.pid), encoding="utf-8")
+    return proc.pid
+
+
+async def _notify_start() -> None:
+    sys.path.insert(0, str(PROJECT))
+    from app.main import load_env
+
+    load_env()
+    from app.monitor.notifier import send
+
+    mode = os.getenv("KIS_MOCK", "true")
+    dry = os.getenv("DRY_RUN", "true")
+    label = "[모의투자]" if mode == "true" else "[실거래]"
+    await send(f"{label} 자동매매 봇 시작 (DRY_RUN={dry})")
+
+
+def main() -> int:
+    os.chdir(PROJECT)
+    _kill_existing_bots()
+    pid = _start_bot()
+    print(f"Bot started PID={pid}")
+    asyncio.run(_notify_start())
+    print("Discord start notification sent")
+    return 0
+
+
+if __name__ == "__main__":
+    raise SystemExit(main())