52 lines
2.4 KiB
TypeScript
52 lines
2.4 KiB
TypeScript
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/**
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* The LH_DATA_DIR seam (Electron contract, 2026-09-17): when set, every
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* mutable record relocates under it; when unset, byte-for-byte the old
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* repo-data/ behavior. The desktop shell's whole data story rests on this,
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* so pin both directions.
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*
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* The seam is evaluated at MODULE LOAD, so the "set" case must set the env
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* BEFORE the first import of config.ts in this process (dynamic import,
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* below) and the "unset" case needs a fresh child process.
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*/
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import assert from "node:assert/strict";
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import * as fs from "node:fs";
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import * as os from "node:os";
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import * as path from "node:path";
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import { execFileSync } from "node:child_process";
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import { describe, it } from "node:test";
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const REPO_ROOT = path.resolve(import.meta.dirname, "..");
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const TSX_LOADER = path.join(REPO_ROOT, "node_modules", "tsx", "dist", "loader.mjs");
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describe("LH_DATA_DIR seam", () => {
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it("relocates data/chats/graph + modelCache under LH_DATA_DIR, keeps prompts ROOT-anchored", async () => {
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const dir = fs.mkdtempSync(path.join(os.tmpdir(), "lh-seam-"));
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process.env.LH_DATA_DIR = dir;
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try {
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const { PATHS, ROOT } = await import("../config.ts");
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assert.equal(PATHS.data, dir, "PATHS.data resolves the env value (resolved absolute)");
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assert.equal(PATHS.chats, path.join(dir, "chats"));
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assert.equal(PATHS.graph, path.join(dir, "graph"));
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assert.equal(PATHS.modelCache, path.join(dir, "models"), "the HF model cache follows the seam");
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assert.equal(
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PATHS.teacherPrompt,
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path.join(ROOT, "src", "agent", "system-prompt.md"),
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"read-only prompt assets stay bundle-anchored on purpose",
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);
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} finally {
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delete process.env.LH_DATA_DIR;
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}
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});
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it("unset = the repo data/ exactly as before (fresh child process, no env)", () => {
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const out = execFileSync(
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process.execPath,
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["--import", TSX_LOADER, "--eval", `const m = await import(${JSON.stringify(path.join(REPO_ROOT, "config.ts"))}); console.log(JSON.stringify({ data: m.PATHS.data, chats: m.PATHS.chats, modelCache: m.PATHS.modelCache }));`],
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{ cwd: REPO_ROOT, encoding: "utf-8" },
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);
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const parsed = JSON.parse(out) as { data: string; chats: string | null; modelCache: string | null };
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assert.equal(parsed.data, path.join(REPO_ROOT, "data"));
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assert.equal(parsed.chats, path.join(REPO_ROOT, "data", "chats"));
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assert.equal(parsed.modelCache, null, "dev keeps the transformers package default cache");
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});
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});
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