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#!/usr/bin/env python3
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"""
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histcapture.py — automated historical-record capture for CUBELinux-2 work.
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PURPOSE
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The user wanted the per-exchange historical record (TYPE: HIST-QNA in the
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'hermes' cube namespace) captured automatically from the Hermes session
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transcript, so the agent no longer has to log each exchange by hand.
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SOURCE: /root/.hermes/state.db, table `messages` (id, session_id, role,
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content, timestamp). We capture role IN ('user','assistant') — not 'tool'
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(tool results are not conversational Q&A).
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DESTINATION: CUBE namespace 'hermes', one entry per message, named
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"HIST:<ISO8601>:<seq>" with a "TYPE: HIST-QNA" header + JSON body.
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DEFAULT BEHAVIOR — FORWARD ONLY (no backfill, no deletion)
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On first run with no state file, we DO NOT start from message id 0. We
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start from the CURRENT maximum message id, so only future exchanges are
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captured. This honors the standing "no backfill" rule.
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Saved history is NEVER deleted by this script. The one-time cleanup of an
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early over-backfill bug was a manual, one-off action and is NOT a recurring
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retention limit — historical entries that land in the cube stay.
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BOUNDED SEED (explicit, user-approved, one-time)
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`--seed-hours N` populates the last N hours ONCE. This is the only
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backfill path and is opt-in (used to bootstrap the initial 24h window).
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IDEMPOTENCY
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- A state file records the highest message id pushed; reruns only push
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newer messages (safe under a timer).
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- Writes check existence first and skip duplicates.
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FAILURE
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If the cubed socket is down, cube_write returns False; we do not advance
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last_id past the failure point and exit non-zero so a timer sees it.
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"""
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import os
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import sys
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import json
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import base64
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import socket
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import sqlite3
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import argparse
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from datetime import datetime, timezone, timedelta
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from typing import Optional
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STATE_DB = "/root/.hermes/state.db"
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CUBED_SOCKET = os.environ.get("CUBED_SOCKET") or "/run/user/1000/cubelinux/cubed.sock"
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NAMESPACE = "hermes"
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STATE_FILE = "/home/CUBELinux/CUBELinux-2/tools/histcapture.state"
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WINDOW_SECONDS = 3600
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# --- cube RPC --------------------------------------------------------------
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def _rpc(req: dict) -> dict:
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payload = (json.dumps(req) + "\n").encode("utf-8")
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sock = socket.socket(socket.AF_UNIX, socket.SOCK_STREAM)
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sock.settimeout(5)
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try:
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sock.connect(CUBED_SOCKET)
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sock.sendall(payload)
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buf = b""
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while b"\n" not in buf:
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chunk = sock.recv(4096)
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if not chunk:
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break
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buf += chunk
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return json.loads(buf.split(b"\n", 1)[0].decode("utf-8", "replace"))
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except OSError:
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return {"ok": False, "error": "socket"}
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finally:
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sock.close()
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def cube_write(name: str, content: str) -> bool:
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return bool(_rpc({
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"cmd": "write", "namespace": NAMESPACE, "name": name,
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"value": base64.b64encode(content.encode("utf-8")).decode("ascii"),
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"kind": "memory", "visibility": "private",
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}).get("ok"))
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def cube_read(name: str):
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r = _rpc({"cmd": "read", "namespace": NAMESPACE, "name": name})
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if r.get("ok") and r.get("value") is not None:
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return base64.b64decode(r["value"]).decode("utf-8", "replace")
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return None
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# --- state -----------------------------------------------------------------
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def read_last_id() -> int:
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try:
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with open(STATE_FILE) as f:
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return int(f.read().strip())
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except (FileNotFoundError, ValueError):
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return -1 # sentinel: not initialized
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def write_last_id(i: int) -> None:
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os.makedirs(os.path.dirname(STATE_FILE), exist_ok=True)
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with open(STATE_FILE, "w") as f:
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f.write(str(i))
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# --- DB --------------------------------------------------------------------
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def fetch_messages(since_id: int, before_ts: Optional[float] = None):
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con = sqlite3.connect(STATE_DB)
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con.row_factory = sqlite3.Row
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cur = con.cursor()
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if before_ts is None:
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cur.execute(
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"SELECT id, session_id, role, content, timestamp FROM messages "
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"WHERE id > ? AND role IN ('user','assistant') ORDER BY id ASC",
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(since_id,),
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)
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else:
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cur.execute(
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"SELECT id, session_id, role, content, timestamp FROM messages "
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"WHERE id > ? AND timestamp >= ? AND role IN ('user','assistant') "
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"ORDER BY id ASC",
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(since_id, before_ts),
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)
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rows = cur.fetchall()
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con.close()
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return rows
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def max_message_id() -> int:
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con = None
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try:
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con = sqlite3.connect(STATE_DB)
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cur = con.cursor()
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cur.execute("SELECT MAX(id) FROM messages")
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return cur.fetchone()[0] or 0
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finally:
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if con:
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con.close()
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# --- naming / entry --------------------------------------------------------
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def iso_from_ts(ts: float) -> str:
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return datetime.fromtimestamp(ts, tz=timezone.utc).strftime("%Y%m%dT%H%M%SZ")
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def build_entry(row, seq: int) -> tuple[str, str]:
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ts_iso = iso_from_ts(row["timestamp"])
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name = f"HIST:{ts_iso}:{seq}"
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content = row["content"] or ""
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try:
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obj = json.loads(content)
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if isinstance(obj, dict):
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content = obj.get("text") or obj.get("content") or content
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except (json.JSONDecodeError, TypeError):
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pass
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body = {"ts": ts_iso, "role": row["role"], "session": row["session_id"]}
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if row["role"] == "user":
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body["query"] = content
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else:
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body["response"] = content
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return name, "TYPE: HIST-QNA\n" + json.dumps(body, indent=2)
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def capture(rows, dry_run: bool) -> int:
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seen: dict[str, int] = {}
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pushed_max = 0
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written = 0
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for r in rows:
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ts_iso = iso_from_ts(r["timestamp"])
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seen[ts_iso] = seen.get(ts_iso, 0) + 1
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name, entry = build_entry(r, seen[ts_iso])
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if dry_run:
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print(f"[dry-run] {name} ({r['role']})")
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continue
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if cube_read(name) is not None:
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pushed_max = max(pushed_max, r["id"])
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continue
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if cube_write(name, entry):
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written += 1
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pushed_max = max(pushed_max, r["id"])
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else:
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print(f"WRITE FAILED id {r['id']} ({name})", file=sys.stderr)
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return pushed_max # stop; caller records progress
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return pushed_max if (written) else 0
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# --- commands --------------------------------------------------------------
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def cmd_forward(dry_run: bool) -> int:
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last = read_last_id()
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if last == -1:
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# FORWARD-ONLY default: start from current max, capture nothing old.
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last = max_message_id()
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print(f"no state: initializing forward-only from id {last} "
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f"(no backfill)")
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if not dry_run:
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write_last_id(last)
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return 0
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rows = fetch_messages(last)
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if not rows:
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print(f"nothing new since id {last}")
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return 0
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if dry_run:
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capture(rows, True)
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return 0
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pushed = capture(rows, False)
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if pushed:
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write_last_id(pushed)
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print(f"captured; last_id -> {pushed}")
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return 0
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def cmd_seed(hours: int, dry_run: bool) -> int:
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now = datetime.now(timezone.utc).timestamp()
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cutoff = now - hours * WINDOW_SECONDS
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rows = fetch_messages(-1, before_ts=cutoff)
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if not rows:
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print(f"no messages in last {hours}h")
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return 0
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if dry_run:
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capture(rows, True)
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return 0
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pushed = capture(rows, False)
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# seed also advances the forward cursor so we don't re-capture the seed
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cur_max = max_message_id()
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write_last_id(max(pushed, cur_max))
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print(f"seeded last {hours}h ({len(rows)} msgs); last_id -> "
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f"{max(pushed, cur_max)}")
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return 0
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def main() -> int:
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ap = argparse.ArgumentParser()
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ap.add_argument("--dry-run", action="store_true")
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ap.add_argument("--seed-hours", type=int, metavar="N",
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help="one-time bounded population of last N hours")
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ap.add_argument("--reset", action="store_true",
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help="clear last_id state")
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args = ap.parse_args()
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if args.reset:
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write_last_id(0)
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print("reset last_id -> 0")
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if not args.seed_hours:
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return 0
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if args.seed_hours:
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return cmd_seed(args.seed_hours, args.dry_run)
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return cmd_forward(args.dry_run)
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if __name__ == "__main__":
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sys.exit(main())
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CUBELinux-2