amosblomqvist
7902984bd6
The web app becomes a desktop app without changing shape: the Electron
shell spawns the Next standalone server on a loopback port and points a
sandboxed window at it. All app logic stays in the Next server.
Bands:
1. LH_DATA_DIR seam (config.ts): PATHS.data/chats/graph derive from
process.env.LH_DATA_DIR (else repo data/, unchanged in dev). New
PATHS.modelCache routes the transformers.js embedding-model cache
(~300MB) to <data>/models when the seam is set — the default cache
inside node_modules is read-only in a packaged bundle. All existing
fs writes flow through PATHS; teacherPrompt stays ROOT-anchored
(read-only asset, ships inside the bundle by design).
tests/data-dir-seam.test.ts covers set/unset via child process.
2. Standalone build (next.config.ts + scripts/build-server.mjs):
output 'standalone'; outputFileTracingExcludes data/**/* keeps the
repo's real session data out of the bundle (verified: an unexcluded
scratch build traced 34 files / 716K of real chats + ledgers).
Two empirically-verified tracer gaps required outputFileTracingIncludes:
pi-ai's provider catalog (JSON import attributes — 39 files, 500s on
/api/models without them) and onnxruntime-node's sibling dylib
(libonnxruntime.dlopen via @rpath). build-server.mjs copies public/
and .next/static per docs, refuses a leaked data/ dir, and asserts
the runtime-read prompt .md assets are traced.
3. Electron shell (electron/main.cjs, no preload):
- single-instance lock (two instances would fight over the data dir);
- free port via listen(0); spawn via process.execPath +
ELECTRON_RUN_AS_NODE=1 with PORT/HOSTNAME=127.0.0.1/LH_DATA_DIR;
- BYOK: userData/auth.json, flat {VAR: value} JSON, mode 0600,
merged into the child env only when absent from the real env
(auth UI is the settings milestone; file is hand-editable);
- poll until the server answers (no ready event), then open a
contextIsolation+sandbox window; deny-by-default permission
handler (media allowed only from the loopback origin — mic/STT
groundwork); will-navigate pinned to origin, window.open denied
with external links to the system browser; macOS Edit-menu roles;
- quit path SIGTERM→3s→SIGKILL + exit/SIGHUP nets; child stdout
mirrored to userData/logs/main.log;
- dev mode via LH_DEV_URL: no spawn, points at next dev (HMR).
4. Packaging (electron-builder.yml + build/entitlements.mac.plist):
files = electron shell only; the whole .next payload ships via
extraResources from .next (filter standalone/**/*) — NOT from
.next/standalone directly: electron-builder hard-excludes a copy's
root node_modules and the default pattern is a literal match, so
node_modules/ and .next/ were silently dropped and the server died
with 'Cannot find module next'. Asar holds no native code.
Unsigned (identity: null) until a Developer ID cert exists; hardened
runtime + audio-input entitlements laid now for the STT milestone.
desktop:dev / desktop:dist scripts (electron 44, electron-builder 26).
Live smoke of the packaged .app: server up on a random loopback port,
all API routes 200, a real GLM chat turn answered end-to-end via
auth.json BYOK, chat persisted under userData/data, second instance
exited via the lock, no orphaned server child after quit.
Gates: typecheck, eslint, 500/500 tests (+2 data-dir-seam), build.
60 lines
2.3 KiB
JavaScript
60 lines
2.3 KiB
JavaScript
/**
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* build-server.mjs — curate the Electron shell's server payload.
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*
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* `next build` (output: "standalone") produces .next/standalone/ with
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* server.js + the traced node_modules subset, but leaves two pieces
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* outside that the docs require us to copy: public/ and .next/static/.
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* This script finishes the job and sanity-checks the result — including
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* the exclusion that keeps the repo's real data/ OUT of the bundle
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* (see next.config.ts outputFileTracingExcludes).
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*/
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import * as fs from "node:fs";
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import * as path from "node:path";
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const ROOT = path.resolve(import.meta.dirname, "..");
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const STANDALONE = path.join(ROOT, ".next", "standalone");
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const copyTree = (from, to) => {
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fs.cpSync(from, to, { recursive: true });
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};
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const exists = (p) => fs.existsSync(p);
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if (!exists(path.join(STANDALONE, "server.js"))) {
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console.error("[build-server] .next/standalone/server.js missing — run `next build` first (output: 'standalone').");
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process.exit(1);
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}
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// 1) Static assets: public/ → standalone/public, .next/static → standalone/.next/static
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const staticFrom = path.join(ROOT, ".next", "static");
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const staticTo = path.join(STANDALONE, ".next", "static");
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if (!exists(staticFrom)) {
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console.error("[build-server] .next/static missing — the build looks incomplete.");
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process.exit(1);
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}
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copyTree(staticFrom, staticTo);
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if (exists(path.join(ROOT, "public"))) {
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copyTree(path.join(ROOT, "public"), path.join(STANDALONE, "public"));
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}
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// 2) Safety: the repo's real data/ must NEVER ride along in the bundle.
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const leakedData = path.join(STANDALONE, "data");
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if (exists(leakedData)) {
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console.error("[build-server] REFUSING: standalone contains a data/ directory — repo session data would ship in the app.");
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console.error(" Check outputFileTracingExcludes in next.config.ts.");
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process.exit(1);
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}
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// 3) Sanity: the runtime-read prompt assets must be present (the teacher
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// agent reads them from disk at request time).
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for (const asset of [
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path.join("src", "agent", "system-prompt.md"),
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path.join("src", "agent", "prompts", "teacher", "20-teaching.md"),
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]) {
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if (!exists(path.join(STANDALONE, asset))) {
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console.error(`[build-server] prompt asset missing from the trace: ${asset}`);
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process.exit(1);
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}
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}
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console.log("[build-server] server payload ready:", STANDALONE); |