genichinandClaude Opus 4.8
575ba9f513
DaemonConfig.from_env() now best-effort loads a .env file (find_dotenv usecwd, load_dotenv override=False) so operators can manage daemon env vars via .env, with real OS env taking precedence. Add python-dotenv dependency, gitignore .env, ship .env.example, and add config tests (load / OS-env precedence / absence regression / missing-DSN guard). Verification: 78 passed, ruff clean, .env ignored + .env.example tracked, and a .env-only DaemonConfig smoke. Processed via the minor-change fast path: REQ-010 (Configuration) -> Implemented, BAT-003 (batch-lite, no design) -> release-candidate. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
43 lines
1.3 KiB
Python
43 lines
1.3 KiB
Python
"""Daemon configuration resolution (REQ-005, REQ-010)."""
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from __future__ import annotations
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import os
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from dataclasses import dataclass
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def _load_dotenv() -> None:
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"""Best-effort load of a .env file into os.environ (REQ-010).
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Real OS environment variables take precedence over .env (override=False),
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matching 12-factor expectations. If python-dotenv is not installed or no
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.env exists, this is a no-op (no regression).
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"""
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try:
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from dotenv import find_dotenv, load_dotenv
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except ImportError: # pragma: no cover - optional at runtime
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return
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load_dotenv(find_dotenv(usecwd=True), override=False)
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@dataclass(frozen=True)
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class DaemonConfig:
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dsn: str
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total_slots: int
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host: str
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port: int
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@staticmethod
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def from_env() -> "DaemonConfig":
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_load_dotenv()
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dsn = os.environ.get("TREX_POSTGRESQL_DSN")
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if not dsn:
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raise RuntimeError(
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"TREX_POSTGRESQL_DSN is required to start the slot-core daemon."
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)
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return DaemonConfig(
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dsn=dsn,
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total_slots=int(os.environ.get("TREX_TOTAL_SLOTS", "10")),
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host=os.environ.get("TREX_API_HOST", "127.0.0.1"),
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port=int(os.environ.get("TREX_API_PORT", "8080")),
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)
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