81 lines
1.7 KiB
JavaScript
81 lines
1.7 KiB
JavaScript
/*
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Lightweight logger, print everything that is send to error, warn
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and messages to stdout (the terminal). If config.debug is set in config
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also print out everything send to debug.
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*/
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var moment = require('moment');
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var fmt = require('util').format;
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var _ = require('lodash');
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var util = require('./util');
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var config = util.getConfig();
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var debug = config.debug;
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var silent = config.silent;
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var sendToParent = function() {
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var send = method => (...args) => {
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process.send({log: method, message: args.join(' ')});
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}
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return {
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error: send('error'),
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warn: send('warn'),
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info: send('info'),
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write: send('write')
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}
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}
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var Log = function() {
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_.bindAll(this);
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this.env = util.gekkoEnv();
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if(this.env === 'standalone')
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this.output = console;
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else if(this.env === 'child-process')
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this.output = sendToParent();
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};
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Log.prototype = {
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_write: function(method, args, name) {
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if(!name)
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name = method.toUpperCase();
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var message = moment().format('YYYY-MM-DD HH:mm:ss');
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message += ' (' + name + '):\t';
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message += fmt.apply(null, args);
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this.output[method](message);
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},
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error: function() {
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this._write('error', arguments);
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},
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warn: function() {
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this._write('warn', arguments);
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},
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info: function() {
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this._write('info', arguments);
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},
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write: function() {
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var args = _.toArray(arguments);
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var message = fmt.apply(null, args);
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this.output.info(message);
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}
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}
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if(debug)
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Log.prototype.debug = function() {
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this._write('info', arguments, 'DEBUG');
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}
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else
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Log.prototype.debug = _.noop;
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if(silent) {
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Log.prototype.debug = _.noop;
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Log.prototype.info = _.noop;
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Log.prototype.warn = _.noop;
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Log.prototype.write = _.noop;
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}
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module.exports = new Log; |