#!/usr/bin/env node

const tmp = require("tmp");
const fs = require("fs");
const childProcess = require("child_process");
const chalk = require("chalk");

let packages = process.argv.slice(2);

let expression = `
	with import <nixpkgs> {}; stdenv.mkDerivation rec {
		name = "devshell";
		buildInputs = [${packages.join(" ")}];
		LD_LIBRARY_PATH = "\${stdenv.lib.makeLibraryPath buildInputs}:${process.env.LD_LIBRARY_PATH}";
	}
`;

let temporaryFile = tmp.fileSync();

fs.writeSync(temporaryFile.fd, expression);
fs.closeSync(temporaryFile.fd);

console.log(chalk.green.bold(`Spawning shell with packages [${packages.join(", ")}] in the LD_LIBRARY_PATH...`));

childProcess.spawn("nix-shell", [temporaryFile.name], {
	stdio: "inherit"
});