83 lines
2.8 KiB
JavaScript
83 lines
2.8 KiB
JavaScript
const moment = require('moment');
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const colors = require('colors/safe');
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const util = require('util');
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function padCenter(x, p, n) {
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x = '' + x;
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let z = false;
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while (x.length < n) {
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if (z) {
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z = false;
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x = p + x;
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} else {
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z = true;
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x = x + p;
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}
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}
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return x;
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}
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function createLogger(name, processConsole) {
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processConsole = processConsole || console;
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let logger = {};
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function colorize(level, text) {
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let map = {
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'error': colors.red,
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'warn': colors.yellow,
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'info': colors.green,
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'debug': colors.blue,
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'silly': colors.magenta,
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};
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if (level in map) {
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return map[level](text);
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} else {
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return colors.bgWhite(text);
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}
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}
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logger.log = function(level, message, data) {
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let prefix = `[ ${colorize(level, padCenter(level, ' ', 5))} | ${padCenter(name, ' ', 6)} | ${moment().format('HH:mm:ss.SSS')} ]`;
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let out = '';
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if (message !== undefined && typeof message !== 'string') {
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data = message;
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message = null;
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}
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if (message) {
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out += message.split('\n').map(o => `${prefix}: ${o}`).join('\n');
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// out += `${prefix}: ${message}`;
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}
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function handleData(data) {
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if (data) {
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if (typeof message === 'string') {
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out += '\n';
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}
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if (data instanceof Error) {
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if (data.stack) {
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out += `${prefix}# ${data.stack.split('\n').join(`\n${prefix}# `)}`;
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} else {
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out += `${prefix}# ${data.name}: ${data.message}`;
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}
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} else {
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let s = util.inspect(data, { colors: true });
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s = s.split('\n').map(o => `${prefix}$ ${o}`).join('\n');
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out += s;
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//let s = `{${prettyjson.render(data).split('\n').map(o => ' ' + o).join('\n').substring(1)} }`;
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//out += `${prefix}$ ${s.split('\n').map(o => colors.italic(o)).join(`\n${prefix}$ `)}`;
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}
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}
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}
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if (Array.isArray(data)) {
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data.forEach(handleData);
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} else {
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handleData(data);
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}
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processConsole.log(out);
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}
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logger.error = (message, data) => { logger.log('error', message, data); };
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logger.warn = (message, data) => { logger.log('warn', message, data); };
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logger.info = (message, data) => { logger.log('info', message, data); };
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logger.debug = (message, data) => { logger.log('debug', message, data); };
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logger.silly = (message, data) => { logger.log('silly', message, data); };
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return logger;
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}
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module.exports = createLogger; |