Add hub system logs page with PM2 stdout/stderr tabs for all exchanges.

Co-authored-by: Cursor <cursoragent@cursor.com>
2026-07-09 10:33:14 +08:00
parent 9eb10ba771
commit 5214794f95
8 changed files with 479 additions and 2 deletions
@@ -0,0 +1,89 @@
+"""中控:读取 PM2 进程 stdout/stderr 日志(系统日志页)."""
+from __future__ import annotations
+
+import os
+import time
+from pathlib import Path
+from typing import Any
+
+LOG_TARGETS: dict[str, dict[str, str]] = {
+    "binance": {"label": "币安", "pm2_name": "crypto_binance"},
+    "gate": {"label": "Gate", "pm2_name": "crypto_gate"},
+    "okx": {"label": "OKX", "pm2_name": "crypto_okx"},
+    "hub": {"label": "中控", "pm2_name": "manual-trading-hub"},
+}
+
+DEFAULT_LINES = 200
+MAX_LINES = 500
+DEFAULT_TAIL_BYTES = 400_000
+
+
+def pm2_logs_dir() -> Path:
+    raw = (os.getenv("PM2_HOME") or "").strip()
+    base = Path(raw) if raw else Path.home() / ".pm2"
+    return base / "logs"
+
+
+def log_file_paths(pm2_name: str) -> tuple[Path, Path]:
+    logs_dir = pm2_logs_dir()
+    return logs_dir / f"{pm2_name}-out.log", logs_dir / f"{pm2_name}-error.log"
+
+
+def tail_lines(
+    path: Path,
+    lines: int = DEFAULT_LINES,
+    *,
+    max_bytes: int = DEFAULT_TAIL_BYTES,
+) -> str:
+    if not path.is_file():
+        return ""
+    try:
+        size = path.stat().st_size
+        with path.open("rb") as handle:
+            if size <= max_bytes:
+                data = handle.read()
+            else:
+                handle.seek(max(0, size - max_bytes))
+                data = handle.read()
+        text = data.decode("utf-8", errors="replace")
+        parts = text.splitlines()
+        if len(parts) > lines:
+            parts = parts[-lines:]
+        return "\n".join(parts)
+    except OSError:
+        return ""
+
+
+def system_logs_meta() -> dict[str, Any]:
+    return {
+        "ok": True,
+        "targets": [
+            {"key": key, "label": cfg["label"], "pm2_name": cfg["pm2_name"]}
+            for key, cfg in LOG_TARGETS.items()
+        ],
+        "default_lines": DEFAULT_LINES,
+        "max_lines": MAX_LINES,
+    }
+
+
+def load_system_logs(target: str, lines: int = DEFAULT_LINES) -> dict[str, Any]:
+    key = (target or "").strip().lower()
+    if key not in LOG_TARGETS:
+        raise KeyError(key)
+    cfg = LOG_TARGETS[key]
+    line_count = max(20, min(MAX_LINES, int(lines or DEFAULT_LINES)))
+    out_path, err_path = log_file_paths(cfg["pm2_name"])
+    return {
+        "ok": True,
+        "key": key,
+        "label": cfg["label"],
+        "pm2_name": cfg["pm2_name"],
+        "lines": line_count,
+        "out": tail_lines(out_path, line_count),
+        "err": tail_lines(err_path, line_count),
+        "out_exists": out_path.is_file(),
+        "err_exists": err_path.is_file(),
+        "out_path": str(out_path),
+        "err_path": str(err_path),
+        "updated_at": int(time.time()),
+    }