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export type ExecOptions = Omit<Deno.RunOptions, 'stdout' | 'stderr'>
const removeTrailingLineBreak = (str: string) => {	return str.replace(/\n$/, '')}
export const exec = async (cmd: string | string[] | ExecOptions) => {	let opts: Deno.RunOptions
	if (typeof cmd === 'string') {		opts = {			cmd: cmd.split(' ')		}	}	else if (Array.isArray(cmd)) {		opts = {			cmd		}	}	else {		opts = cmd	}
	opts.stdout = 'piped'	opts.stderr = 'piped'
	const process = Deno.run(opts)	const decoder = new TextDecoder()	const { success } = await process.status()
	if (!success) {		const msg = removeTrailingLineBreak(decoder.decode(await process.stderrOutput()))
		process.close()
		throw new Error(msg || 'exec: failed to execute command')	}
	return removeTrailingLineBreak(decoder.decode(await process.output()))}