import { spawn } from "child_process";

export async function exec(
	program: string,
	args: string[]
): Promise<{ stderr: string; stdout: string; exitCode: number }> {
	return new Promise((resolve, reject) => {
		let stdout = "";
		let stderr = "";
		const process = spawn(program, args);
		process.stdout.on(
			"data",
			(data: Buffer) => (stdout += data.toString())
		);
		process.stderr.on(
			"data",
			(data: Buffer) => (stderr += data.toString())
		);
		process.on("close", (exitCode) => {
			if (exitCode === 0) {
				resolve({ stdout, stderr, exitCode });
			} else {
				console.error([program, ...args].join(" "));
				console.error(stderr);
				reject({ stdout, stderr, exitCode });
			}
		});
	});
}