hermes-agent/nix/tui.nix
ethernet 42627b4eaf refactor(tui): bundle with esbuild, drop runtime node_modules
Replace the tsc + babel pipeline with a single esbuild invocation that
produces a self-contained dist/entry.js. The nix TUI derivation no
longer copies node_modules — only dist/ + package.json ship, shrinking
the output from hundreds of MB to ~2.9 MB.

- ui-tui/scripts/build.mjs: new esbuild bundler. Aliases @hermes/ink
  to source (esbuild's __esm helper doesn't await nested async init,
  which breaks lazy-assigned exports like 'render' when re-exporting
  through a prebuilt submodule). Stubs react-devtools-core (dev-only).
  Injects a createRequire shim for transitive CJS deps. Strips the
  shebang from src/entry.tsx because Nix patchShebangs mangles
  '/usr/bin/env -S node --max-old-space-size=8192 --expose-gc' — it
  drops the 'node' token. The Python launcher always invokes node
  explicitly, so the shebang is redundant.
- nix/tui.nix: installPhase no longer copies node_modules or the
  @hermes/ink packages dir.
- nix/checks.nix: drop the 'node_modules present' assertion.
- hermes_cli/main.py: _tui_need_npm_install short-circuits when
  dist/entry.js exists and no package-lock.json is present. That is
  the prebuilt-bundle layout (nix / packaged release) and there is
  nothing to install. Without this, the launcher tried to npm install
  in a non-existent site-packages/ui-tui path.
2026-04-30 15:38:50 -04:00

36 lines
987 B
Nix

# nix/tui.nix — Hermes TUI (Ink/React) compiled with tsc and bundled
{ pkgs, hermesNpmLib, ... }:
let
src = ../ui-tui;
npmDeps = pkgs.fetchNpmDeps {
inherit src;
hash = "sha256-Chz+NW9NXqboXHOa6PKwf5bhAkkcFtKNhvKWwg2XSPc=";
};
npm = hermesNpmLib.mkNpmPassthru { folder = "ui-tui"; attr = "tui"; pname = "hermes-tui"; };
packageJson = builtins.fromJSON (builtins.readFile (src + "/package.json"));
version = packageJson.version;
in
pkgs.buildNpmPackage (npm // {
pname = "hermes-tui";
inherit src npmDeps version;
doCheck = false;
npmFlags = [ "--legacy-peer-deps" ];
installPhase = ''
runHook preInstall
mkdir -p $out/lib/hermes-tui
# Single self-contained bundle built by scripts/build.mjs (esbuild).
# No runtime node_modules needed.
cp -r dist $out/lib/hermes-tui/dist
# package.json kept for "type": "module" resolution on `node dist/entry.js`.
cp package.json $out/lib/hermes-tui/
runHook postInstall
'';
})