buildNodeModules

The dumbest node to Nix packaging solution yet!

How it works

How node_modules is built

• Map over package-lock.json packages, invoke correct fetcher

• Update package.json & package-lock.lock to point to store paths URLs are rewritten to file:... dependencies that link to the Nix store.

• Run npm install

How node_modules is linked

Our configure/shell hook links individual directories inside the Nix built node_modules directory. This is to work around issues like https://github.com/nix-community/npmlock2nix/issues/86 and that tools like vite expects a writable node_modules.

Usage

• default.nix

  stdenv.mkDerivation {
  pname = "my-website";
  version = "0.1.0";
  
  src = ./.;
  
  nativeBuildInputs = [
  buildNodeModules.hooks.npmConfigHook
  nodejs
  nodejs.passthru.python # for node-gyp
  npmHooks.npmBuildHook
  npmHooks.npmInstallHook
  ];
  
  nodeModules = buildNodeModules.fetchNodeModules {
  packageRoot = ./.;
  };
  }

• shell.nix

  pkgs.mkShell {
  packages = [
  buildNodeModules.hooks.linkNodeModulesHook
  nodejs
  ];
  
  nodeModules = buildNodeModules.buildNodeModules {
  packageRoot = ./.;
  inherit nodejs;
  };
  }