rustModule.js

var exec = require('child_process').exec;
var fs = require('fs');
var cuid = require('cuid');
var colors = require('colors');

exports.stats = false;

exports.compileRust = function (envData, code, fn) {

	var filename = cuid.slug();
	path = './temp/';

	fs.writeFile(path + filename + '.rc', code, function (err) {
		if (exports.stats) {
			if (err)
				console.log('ERROR: '.red + err);
			else
				console.log('INFO: '.green + filename + '.rc created');
		}
		if (!err) {

			if (envData.OS === "windows") {
				var command = 'cd ' + path + ' & rustc ' + filename + '.rc' + ' & ' + filename;
			}
			else if (envData.OS === "linux") {
				var command = 'cd ' + path + ' && rustc ' + filename + '.rc' + ' && ./' + filename;
			}

			exec(command, function (error, stdout, stderr) {
				if (error) {
					if (error.toString().indexOf('Error: stdout maxBuffer exceeded.') != -1) {
						var out = { error: 'Error: stdout maxBuffer exceeded. You might have initialized an infinite loop.' };
						fn(out);
					}
					else {
						if (exports.stats) {
							console.log('INFO: '.green + filename + '.rc contained an error while executing');
						}
						var out = { error: stderr };
						fn(out);
					}
				}
				else {
					if (exports.stats) {
						console.log('INFO: '.green + filename + ' successfully executed !');
					}
					var out = { output: stdout };
					fn(out);
				}
			});
		}
	});
}

exports.compileRustWithInput = function (envData, code, input, fn) {
	var filename = cuid.slug();
	path = './temp/';

	fs.writeFile(path + filename + '.rc', code, function (err) {
		if (exports.stats) {
			if (err)
				console.log('ERROR: '.red + err);
			else
				console.log('INFO: '.green + filename + '.rc created');
		}
		if (!err) {

			fs.writeFile(path + filename + 'input.txt', input, function (err) {
				if (exports.stats) {
					if (err)
						console.log('ERROR: '.red + err);
					else
						console.log('INFO: '.green + filename + 'input.txt created');
				}
				if (!err) {
					if (envData.OS === "windows") {
						var command = 'cd ' + path + ' & rustc ' + filename + '.rc' + ' & ' + filename + ' < ' + filename + 'input.txt';
					}
					else if (envData.OS === "linux") {
						var command = 'cd ' + path + ' && rustc ' + filename + '.rc' + ' && ./' + filename + ' < ' + filename + 'input.txt';
					}
					exec(command, function (error, stdout, stderr) {
						if (error) {
							if (error.toString().indexOf('Error: stdout maxBuffer exceeded.') != -1) {
								var out = { error: 'Error: stdout maxBuffer exceeded. You might have initialized an infinite loop.' };
								fn(out);
							}
							else {
								if (exports.stats) {
									console.log('INFO: '.green + filename + '.rc contained an error while executing');
								}
								var out = { error: stderr };
								fn(out);
							}
						}
						else {
							if (exports.stats) {
								console.log('INFO: '.green + filename + '.rc successfully executed !');
							}
							var out = { output: stdout };
							fn(out);
						}
					});
				}
			});
		}
	});
}