Function freshDetectEngineTier

lib/gstack-memory-helpers.ts:273–327

()

}

function freshDetectEngineTier(): EngineDetect {
  const now = Date.now();
  let parsed: Record<string, unknown> | null = null;

  // execFileSync (not execSync) avoids shell redirection — portable to
  // environments where `2>/dev/null` is bash-specific. The stdio array
  // suppresses stderr without invoking a shell.
  try {
    const out = execFileSync("gbrain", ["doctor", "--json", "--fast"], {
      encoding: "utf-8",
      timeout: 5000,
      stdio: ["ignore", "pipe", "ignore"],
    });
    parsed = JSON.parse(out);
  } catch (err: unknown) {
    // execFileSync throws on non-zero exit; stdout is still on the error
    // object. gbrain doctor exits 1 whenever health_score < 100, which is
    // essentially always on fresh installs (resolver_health warnings are
    // normal). Recover stdout and re-parse. See #1415.
    try {
      const stdout = (err as { stdout?: Buffer | string })?.stdout ?? "";
      const stdoutStr = typeof stdout === "string" ? stdout : stdout.toString("utf-8");
      if (stdoutStr) parsed = JSON.parse(stdoutStr);
    } catch (parseErr) {
      logGbrainError("doctor_parse_failure", String(parseErr));
    }
  }

  let engine: EngineTier =
    parsed?.engine === "supabase" ? "supabase" :
    parsed?.engine === "pglite"   ? "pglite"   : "unknown";

  // gbrain >=0.25 ships schema_version:2 doctor output which dropped the
  // top-level `engine` field. Fall back to gbrain's config.json (respects
  // GBRAIN_HOME). "supabase" here means "remote postgres" — gbrain config
  // uses engine:"postgres" for real Supabase AND any other remote postgres
  // (e.g. local-postgres-for-testing). Downstream sync code treats them the
  // same, so the label compression is intentional.
  if (engine === "unknown") {
    try {
      const cfg = JSON.parse(readFileSync(gbrainConfigPath(), "utf-8"));
      if (cfg?.engine === "pglite") engine = "pglite";
      else if (cfg?.engine === "postgres" || cfg?.database_url) engine = "supabase";
    } catch (cfgErr) {
      logGbrainError("config_read_failure", String(cfgErr));
    }
  }

  return {
    engine,
    supabase_url: parsed?.supabase_url as string | undefined,
    detected_at: now,
    schema_version: 1,
  };
}

// ── Public: parseSkillManifest ────────────────────────────────────────────