japp/lib/logger.js

An npm package to compare images and snapshots

var fs = require("fs");
var path = require("path");
var timers = {};


module.exports = {
	writeStream: false,
	warn: function (msg) {
		var str = "WARNING:: " + msg + "\n";
		console.log(str);
		this.writeStream &&
			fs.write(this.writeStream, str);
	},
	info: function (msg) {
		var str = "INFO:: " + msg + "\n";
		console.log(str);
		this.writeStream &&
			fs.write(this.writeStream, str);
	},
	error: function (msg) {
		var str = "ERROR:: " + msg + "\n";
		console.log(str);
		this.writeStream &&
			fs.write(this.writeStream, str);
	},
	startTime: function (msg) {
		if (timers[msg]) {
			this.warn("Timer has already been started for " + msg);
		}
		else {
			timers[msg] = new Date();
		}
	},
	endTime: function (msg) {
		var totalTime = new Date() - timers[msg];
		console.log("TIME:: " + msg + ": " + totalTime);
	},
	setWriteStream: function (fileName) {
		if (this.writeStream) {
			this.closeWriteStream();
		}

		this.writeStream = fs.openSync(path.join(process.cwd(), fileName), 'w');
	},
	closeWriteStream: function () {
		if (this.writeStream) {
			fs.closeSync(this.writeStream);
			this.writeStream = false;
		}
	}
};