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Runtime settings pro CodeAgent v5.
Nastavení lze měnit ZA BĚHU (bez restartu Space):
- přes Gradio tab „Nastavení",
- přes API: GET/POST /admin/settings.
Změny HF Space Variables/Secrets vždy restartují Space (chování HF),
proto runtime konfigurace žije zde: env proměnné slouží jen jako
VÝCHOZÍ hodnoty při prvním startu, poté má přednost persistovaný
JSON (/data/settings.json, pokud je připojen storage bucket, jinak
.agent/settings.json na ephemeral disku).
Dvě kategorie polí:
- INSTANT — projeví se okamžitě (limity agenta, runner, cache, ...)
- ENGINE — vyžadují reload vLLM enginu (model, TP, kvantizace, ...);
reload proběhne na pozadí, aplikace běží dál.
"""
from __future__ import annotations
import copy
import json
import logging
import os
import tempfile
from dataclasses import asdict, dataclass, field, fields
from pathlib import Path
from threading import RLock
logger = logging.getLogger("codeagent.settings")
def _env(name: str, default: str = "") -> str:
return os.environ.get(name, default)
def _env_int(name: str, default: int) -> int:
try:
return int(os.environ.get(name, default))
except (TypeError, ValueError):
return default
def _env_float(name: str, default: float) -> float:
try:
return float(os.environ.get(name, default))
except (TypeError, ValueError):
return default
def _env_bool(name: str, default: bool) -> bool:
raw = os.environ.get(name)
if raw is None:
return default
return raw.lower() in ("1", "true", "yes", "on")
# Pole vyžadující reload vLLM enginu.
ENGINE_FIELDS = {
"model",
"model_revision",
"download_dir",
"tensor_parallel_size",
"gpu_memory_utilization",
"max_model_len",
"quantization",
"dtype",
"kv_cache_dtype",
"enforce_eager",
"tool_call_parser",
"reasoning_parser",
"enable_prefix_caching",
"max_num_seqs",
"engine_extra_args",
}
# Pole, která se v GET /admin/settings maskují (secrets).
MASKED_FIELDS = {"runner_token"}
_MASK = "********"
@dataclass
class Settings:
"""Kompletní runtime konfigurace. Env proměnné = výchozí hodnoty."""
# ---- vLLM engine (změna => reload enginu, ne Space) ----
model: str = field(default_factory=lambda: _env(
"MODEL_PRIMARY", "Qwen/Qwen3-Coder-Next-FP8"))
# Adresář pro stahované váhy modelů (vLLM --download-dir).
# Prázdné = auto: /data/models pokud je namountován RW storage bucket
# (přežije restart Space), jinak /app/cache/models (ephemeral).
download_dir: str = field(default_factory=lambda: _env("MODEL_DOWNLOAD_DIR", ""))
# Pin na konkrétní git revizi HF repa (commit hash / tag). Prázdné =
# nejnovější. Doporučeno pro produkci u modelů s trust_remote_code.
model_revision: str = field(default_factory=lambda: _env("MODEL_REVISION", ""))
tensor_parallel_size: int = field(default_factory=lambda: _env_int(
"TENSOR_PARALLEL_SIZE", 4))
gpu_memory_utilization: float = field(default_factory=lambda: _env_float(
"GPU_MEMORY_UTILIZATION", 0.92))
max_model_len: int = field(default_factory=lambda: _env_int(
"MAX_MODEL_LEN", 131072))
# "auto" = nech vLLM detekovat z checkpointu (FP8/AWQ/GPTQ...);
# "none" = bez kvantizace; jinak explicitní hodnota pro vLLM.
quantization: str = field(default_factory=lambda: _env("QUANTIZATION", "auto"))
dtype: str = field(default_factory=lambda: _env("DTYPE", "auto"))
kv_cache_dtype: str = field(default_factory=lambda: _env("KV_CACHE_DTYPE", "auto"))
enforce_eager: bool = field(default_factory=lambda: _env_bool("ENFORCE_EAGER", False))
# "auto" = odvodit z presetu/rodiny modelu; "" = vypnuto.
tool_call_parser: str = field(default_factory=lambda: _env("TOOL_CALL_PARSER", "auto"))
reasoning_parser: str = field(default_factory=lambda: _env("REASONING_PARSER", "auto"))
enable_prefix_caching: bool = field(default_factory=lambda: _env_bool(
"ENABLE_PREFIX_CACHING", True))
max_num_seqs: int = field(default_factory=lambda: _env_int("MAX_NUM_SEQS", 0)) # 0 = default vLLM
# Únikový ventil: libovolné další CLI argumenty pro `vllm serve`.
engine_extra_args: str = field(default_factory=lambda: _env("ENGINE_EXTRA_ARGS", ""))
# ---- agent / inference chování (instant) ----
agent_mode: str = field(default_factory=lambda: _env("AGENT_MODE", "single").lower())
# Routing v hybrid módu: "ai" = lokální model klasifikuje složitost úlohy
# (fallback na keywords při chybě), "keywords" = jen statická pravidla.
router_mode: str = field(default_factory=lambda: _env("ROUTER_MODE", "ai").lower())
kimi_model: str = field(default_factory=lambda: _env(
"KIMI_MODEL", "moonshotai/Kimi-K2.7-Code"))
local_context_limit: int = field(default_factory=lambda: _env_int(
"LOCAL_CONTEXT_LIMIT", 24000))
temperature: float = field(default_factory=lambda: _env_float("TEMPERATURE", 0.2))
max_output_tokens: int = field(default_factory=lambda: _env_int(
"MAX_OUTPUT_TOKENS", 8192))
max_steps: int = field(default_factory=lambda: _env_int("MAX_STEPS", 30))
max_sub_steps: int = field(default_factory=lambda: _env_int("MAX_SUB_STEPS", 15))
# Úroveň výpisů v chatu: full = nástroje + argumenty + výsledky,
# compact = jen jména nástrojů, final = pouze finální odpověď.
chat_verbosity: str = field(default_factory=lambda: _env("CHAT_VERBOSITY", "full").lower())
# ---- sub-agenti (instant; prompt = "" znamená výchozí) ----
subagent_explorer_enabled: bool = field(default_factory=lambda: _env_bool(
"SUBAGENT_EXPLORER_ENABLED", True))
subagent_coder_enabled: bool = field(default_factory=lambda: _env_bool(
"SUBAGENT_CODER_ENABLED", True))
subagent_reviewer_enabled: bool = field(default_factory=lambda: _env_bool(
"SUBAGENT_REVIEWER_ENABLED", True))
max_explorer_steps: int = field(default_factory=lambda: _env_int("MAX_EXPLORER_STEPS", 20))
max_coder_steps: int = field(default_factory=lambda: _env_int("MAX_CODER_STEPS", 25))
max_reviewer_steps: int = field(default_factory=lambda: _env_int("MAX_REVIEWER_STEPS", 10))
subagent_explorer_prompt: str = field(default_factory=lambda: _env(
"SUBAGENT_EXPLORER_PROMPT", ""))
subagent_coder_prompt: str = field(default_factory=lambda: _env(
"SUBAGENT_CODER_PROMPT", ""))
subagent_reviewer_prompt: str = field(default_factory=lambda: _env(
"SUBAGENT_REVIEWER_PROMPT", ""))
# ---- správa kontextu a tokenů (instant) ----
# trim = deterministická kompakce (stárnutí tool výsledků + vypouštění
# nejstarších bloků), off = vypnuto.
context_compaction: str = field(default_factory=lambda: _env(
"CONTEXT_COMPACTION", "trim").lower())
# 0 = auto: max_model_len - max_output_tokens - 2048 rezerva.
context_budget_tokens: int = field(default_factory=lambda: _env_int(
"CONTEXT_BUDGET_TOKENS", 0))
# Posledních N bloků konverzace se nikdy nekompaktuje.
context_keep_last_steps: int = field(default_factory=lambda: _env_int(
"CONTEXT_KEEP_LAST_STEPS", 6))
# Tvrdý strop délky výsledku nástroje při vložení do kontextu.
tool_result_max_chars: int = field(default_factory=lambda: _env_int(
"TOOL_RESULT_MAX_CHARS", 24000))
# Na kolik znaků se zkrátí staré tool výsledky při kompakci.
tool_result_aged_chars: int = field(default_factory=lambda: _env_int(
"TOOL_RESULT_AGED_CHARS", 2000))
# ---- runner (instant) ----
runner_url: str = field(default_factory=lambda: _env("LOCAL_RUNNER_URL", "").rstrip("/"))
runner_token: str = field(default_factory=lambda: _env("LOCAL_RUNNER_TOKEN", ""))
runner_timeout: int = field(default_factory=lambda: _env_int("RUNNER_TIMEOUT", 180))
# ---- ostatní (instant) ----
cache_ttl_seconds: int = field(default_factory=lambda: _env_int("CACHE_TTL_SECONDS", 300))
log_level: str = field(default_factory=lambda: _env("LOG_LEVEL", "INFO").upper())
VALID_AGENT_MODES = {"single", "hybrid"}
VALID_ROUTER_MODES = {"ai", "keywords"}
VALID_VERBOSITY = {"full", "compact", "final"}
VALID_COMPACTION = {"trim", "off"}
VALID_DTYPES = {"auto", "half", "float16", "bfloat16", "float32"}
VALID_KV_CACHE_DTYPES = {"auto", "fp8", "fp8_e5m2", "fp8_e4m3"}
def validate_field(name: str, value):
"""Zvaliduje a znormalizuje jednu hodnotu. Vrací (ok, normalized|error_msg)."""
spec = {f.name: f for f in fields(Settings)}.get(name)
if spec is None:
return False, f"Neznámé pole '{name}'"
typ = spec.type if isinstance(spec.type, type) else None
try:
if name in ("tensor_parallel_size", "max_model_len", "max_num_seqs",
"local_context_limit", "max_output_tokens", "max_steps",
"max_sub_steps", "max_explorer_steps", "max_coder_steps",
"max_reviewer_steps", "runner_timeout", "cache_ttl_seconds",
"context_budget_tokens", "context_keep_last_steps",
"tool_result_max_chars", "tool_result_aged_chars"):
value = int(value)
if value < 0:
return False, f"{name} musí být >= 0"
if name == "tensor_parallel_size" and not (1 <= value <= 8):
return False, "tensor_parallel_size musí být 1–8"
if name == "max_model_len" and value < 1024:
return False, "max_model_len musí být >= 1024"
if name == "context_keep_last_steps" and not (1 <= value <= 50):
return False, "context_keep_last_steps musí být 1–50"
if name == "tool_result_max_chars" and value < 1000:
return False, "tool_result_max_chars musí být >= 1000"
if name == "tool_result_aged_chars" and value < 200:
return False, "tool_result_aged_chars musí být >= 200"
elif name in ("gpu_memory_utilization", "temperature"):
value = float(value)
if name == "gpu_memory_utilization" and not (0.1 <= value <= 0.99):
return False, "gpu_memory_utilization musí být 0.10–0.99"
if name == "temperature" and not (0.0 <= value <= 2.0):
return False, "temperature musí být 0.0–2.0"
elif name in ("enforce_eager", "enable_prefix_caching",
"subagent_explorer_enabled", "subagent_coder_enabled",
"subagent_reviewer_enabled"):
if isinstance(value, str):
value = value.lower() in ("1", "true", "yes", "on")
else:
value = bool(value)
elif name == "agent_mode":
value = str(value).lower().strip()
if value not in VALID_AGENT_MODES:
return False, f"agent_mode musí být jedno z {sorted(VALID_AGENT_MODES)}"
elif name == "router_mode":
value = str(value).lower().strip()
if value not in VALID_ROUTER_MODES:
return False, f"router_mode musí být jedno z {sorted(VALID_ROUTER_MODES)}"
elif name == "chat_verbosity":
value = str(value).lower().strip()
if value not in VALID_VERBOSITY:
return False, f"chat_verbosity musí být jedno z {sorted(VALID_VERBOSITY)}"
elif name == "context_compaction":
value = str(value).lower().strip()
if value not in VALID_COMPACTION:
return False, f"context_compaction musí být jedno z {sorted(VALID_COMPACTION)}"
elif name == "dtype":
value = str(value).lower().strip()
if value not in VALID_DTYPES:
return False, f"dtype musí být jedno z {sorted(VALID_DTYPES)}"
elif name == "kv_cache_dtype":
value = str(value).lower().strip()
if value not in VALID_KV_CACHE_DTYPES:
return False, f"kv_cache_dtype musí být jedno z {sorted(VALID_KV_CACHE_DTYPES)}"
elif name == "log_level":
value = str(value).upper().strip()
if value not in ("DEBUG", "INFO", "WARNING", "ERROR"):
return False, "log_level musí být DEBUG/INFO/WARNING/ERROR"
elif name == "runner_url":
value = str(value).strip().rstrip("/")
if value and not value.startswith(("http://", "https://")):
return False, "runner_url musí začínat http(s)://"
elif name == "model":
value = str(value).strip()
if not value:
return False, "model nesmí být prázdný"
elif name == "download_dir":
value = str(value).strip().rstrip("/")
if value and not value.startswith("/"):
return False, ("download_dir musí být absolutní cesta "
"(např. /data/models), nebo prázdné = auto")
else:
value = str(value).strip() if isinstance(value, str) else value
_ = typ # typ zde není potřeba, validace je explicitní
return True, value
except (TypeError, ValueError) as e:
return False, f"Neplatná hodnota pro {name}: {e}"
def _persist_dir() -> Path:
"""/data (storage bucket, přežije restart) > .agent (ephemeral)."""
data = Path(os.environ.get("SETTINGS_DIR", "/data"))
try:
if data.is_dir() and os.access(data, os.W_OK):
return data
except OSError:
pass
fallback = Path(".agent")
fallback.mkdir(parents=True, exist_ok=True)
return fallback
class SettingsManager:
"""Thread-safe držák runtime nastavení s JSON persistencí."""
def __init__(self, path: Path | None = None):
self._lock = RLock()
self.path = path or (_persist_dir() / "settings.json")
self._settings = Settings()
self.revision = 0
self._load_persisted()
# -------------------------------------------------------------- čtení
def get(self) -> Settings:
"""Vrátí kopii aktuálních nastavení (bezpečné ke čtení bez zámku)."""
with self._lock:
return copy.deepcopy(self._settings)
def as_dict(self, mask_secrets: bool = True) -> dict:
with self._lock:
data = asdict(self._settings)
if mask_secrets:
for key in MASKED_FIELDS:
if data.get(key):
data[key] = _MASK
return data
# -------------------------------------------------------------- zápis
def update(self, changes: dict) -> tuple[dict, bool, dict]:
"""Aplikuje změny. Vrací (applied, engine_reload_needed, errors)."""
applied: dict = {}
errors: dict = {}
engine_reload = False
with self._lock:
for name, raw in changes.items():
# maskovaná hodnota z UI => beze změny
if name in MASKED_FIELDS and raw == _MASK:
continue
ok, result = validate_field(name, raw)
if not ok:
errors[name] = result
continue
current = getattr(self._settings, name)
if current == result:
continue
setattr(self._settings, name, result)
applied[name] = result
if name in ENGINE_FIELDS:
engine_reload = True
if applied:
self.revision += 1
self._persist()
if "log_level" in applied:
logging.getLogger("codeagent").setLevel(applied["log_level"])
if applied:
safe = {k: (_MASK if k in MASKED_FIELDS else v) for k, v in applied.items()}
logger.info("Nastavení změněno (rev %s): %s", self.revision, safe)
return applied, engine_reload, errors
# -------------------------------------------------------------- persistence
def _persist(self):
try:
self.path.parent.mkdir(parents=True, exist_ok=True)
payload = json.dumps(asdict(self._settings), ensure_ascii=False, indent=2)
fd, tmp = tempfile.mkstemp(dir=str(self.path.parent), suffix=".tmp")
with os.fdopen(fd, "w", encoding="utf-8") as f:
f.write(payload)
os.replace(tmp, self.path)
except OSError as e:
logger.warning("Persistence nastavení selhala (%s): %s", self.path, e)
def _load_persisted(self):
if not self.path.exists():
return
try:
data = json.loads(self.path.read_text(encoding="utf-8"))
except (OSError, json.JSONDecodeError) as e:
logger.warning("Načtení %s selhalo: %s", self.path, e)
return
valid_names = {f.name for f in fields(Settings)}
for name, value in data.items():
if name not in valid_names:
continue
ok, result = validate_field(name, value)
if ok:
setattr(self._settings, name, result)
logger.info("Nastavení načteno z %s", self.path)
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