70 lines
2.9 KiB
JavaScript
70 lines
2.9 KiB
JavaScript
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import { readFileSync } from "node:fs";
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import { dirname, resolve } from "node:path";
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import { fileURLToPath } from "node:url";
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const moduleDir = dirname(fileURLToPath(import.meta.url));
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const repoRoot = resolve(moduleDir, "../..");
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const registryPath = resolve(moduleDir, "kernel-registry.json");
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function readJson(path) {
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return JSON.parse(readFileSync(path, "utf8"));
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}
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function resolveRepoPath(relativePath) {
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const absolute = resolve(repoRoot, relativePath);
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if (!absolute.startsWith(`${repoRoot}/`)) throw new Error("kernel path escapes repository root");
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return absolute;
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}
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function loadBounded(relativePath, maxBytes) {
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const absolute = resolveRepoPath(relativePath);
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const body = readFileSync(absolute);
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if (body.byteLength > maxBytes) throw new Error(`kernel exceeds byte budget: ${relativePath}`);
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return { relative_path: relativePath, bytes: body.byteLength, value: JSON.parse(body.toString("utf8")) };
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}
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export function loadKernelRegistry() {
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return readJson(registryPath);
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}
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export function canonicalPersonaId(personaId, registry = loadKernelRegistry()) {
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if (registry.personas[personaId]) return personaId;
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for (const [canonical, entry] of Object.entries(registry.personas)) {
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if (entry.aliases?.includes(personaId)) return canonical;
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}
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throw new Error(`unregistered persona: ${personaId}`);
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}
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export function resolvePersonaChannelRuntime({ personaId, channelId, environmentId } = {}) {
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if (typeof personaId !== "string" || personaId.length === 0) throw new TypeError("personaId is required");
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const registry = loadKernelRegistry();
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const canonical = canonicalPersonaId(personaId, registry);
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const persona = registry.personas[canonical];
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const maxBytes = registry.rules.resident_kernel_max_bytes;
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const systemCore = loadBounded(registry.system_core.path, maxBytes);
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const selfKernel = loadBounded(persona.self_kernel, maxBytes);
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const selectedEnvironment = environmentId ?? persona.default_environment ?? null;
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const environment = selectedEnvironment
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? loadBounded(registry.environments[selectedEnvironment].path, maxBytes)
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: null;
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const memoryRoot = channelId
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? persona.channel_memory_roots?.[channelId]
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: persona.default_memory_root;
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if (!memoryRoot) {
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throw new Error(`no memory root registered for persona ${canonical} in channel ${channelId ?? "<default>"}`);
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}
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return {
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schema: "guanghu.persona-channel-runtime-projection/v1",
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persona_id: canonical,
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channel_id: channelId ?? null,
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load_order: [
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{ kind: "RULE_ORDER_SYSTEM_CORE", ...systemCore },
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...(environment ? [{ kind: "CHANNEL_ENVIRONMENT", ...environment }] : []),
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{ kind: "PERSONA_SELF_KERNEL", ...selfKernel },
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{ kind: "HLDP_MEMORY_ROOT", ref: memoryRoot, retrieval_max_paths: registry.rules.memory_retrieval_max_paths },
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],
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self_kernel_path: selfKernel.relative_path,
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memory_root: memoryRoot,
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environment_path: environment?.relative_path ?? null,
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};
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}
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