-
Notifications
You must be signed in to change notification settings - Fork 0
/
logger.js
206 lines (171 loc) · 5.87 KB
/
logger.js
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
const log4js = require('log4js');
const dayjs = require('dayjs');
const { timetotf } = require('./timeframes');
const { textify } = require('./textify');
require('colors');
const REGEX_STACK = /at (.+?) \(.+?([^/]+?):(\d+):(\d+)\)/;
let previous = null;
const cache = {};
// ==============================================
function configureLogger(minlevel = 'silly', opts = {}) {
let tracePattern = 'yyyy-MM-dd';
if (opts.hourly === true) tracePattern = 'yyyy-MM-dd-hh0000';
const layout = { type: 'pretty' };
log4js.addLayout('pretty', () => formatLog4JS);
log4js.configure({
levels: {
SILLY: { value: 2500, colour: 'cyan' }
},
appenders: {
console: { layout, type: 'stdout' },
tracefile: {
layout,
type: 'dateFile',
filename: 'logs/trace.log',
pattern: `old/yyyy-MM/${tracePattern}`,
keepFileExt: true,
// numBackups: 5
},
// debugfile: {
// layout,
// type: 'dateFile',
// filename: 'logs/debug.log',
// pattern: 'old/yyyy-MM/yyyy-MM-dd',
// keepFileExt: true
// },
errorfile: {
layout,
type: 'dateFile',
filename: 'logs/error.log',
pattern: 'old/yyyy-MM',
keepFileExt: true
},
show: { type: 'logLevelFilter', appender: 'console', level: minlevel },
savetrace: { type: 'logLevelFilter', appender: 'tracefile', level: 'trace' },
// savedebug: { type: 'logLevelFilter', appender: 'debugfile', level: 'debug' },
saveerror: { type: 'logLevelFilter', appender: 'errorfile', level: 'warn' },
},
categories: {
default: { appenders: ['show', 'savetrace', 'saveerror'], level: 'silly' }
}
});
const logger = log4js.getLogger();
console.log = (msg) => logger.trace(msg);
console.info = (msg) => logger.debug(msg);
console.warn = (msg) => logger.warn(msg);
console.error = (msg) => logger.error(msg);
logger.shutdown = log4js.shutdown;
return logger;
}
// ==============================================
function configureConsole() {
const consoleMethods = ['debug', 'log', 'info', 'warn', 'error'];
consoleMethods.forEach((name) => {
// debug is not a native method
const origFunction = (name === 'debug') ? console.log : console[name];
console[name] = newConsole;
// ==============================================
function newConsole(data, _opt) {
// do not do anything
// if (_opt && _opt.log === false) return;
const level = name;
const time = dayjs();
const res = formatLog(data, level, _opt, time);
origFunction(res);
}
});
}
// ==============================================
function formatLog4JS(logEvent) {
const level = (logEvent.level.levelStr || 'info').toLowerCase();
const data = logEvent.data[0];
const opt = logEvent.data[1] || {};
const time = logEvent.startTime || dayjs();
// do NOT do anything - this doesn't work!!!
// if (opt.log === false) return null;
// result from cache
if (cache.level === level
&& cache.data === data
&& cache.time === time) return cache.res;
const res = formatLog(data, level, opt, time);
cache.level = level;
cache.data = data;
cache.time = time;
cache.res = res;
return res;
}
// ==============================================
function formatLog(message, level, _opt, datetime) {
const opt = { ...{ time: true, ms: true, err: null, colors: undefined }, ..._opt };
const log = {
data: message,
ms: '',
level: '',
time: '',
fname: '', // error: filepath
lines: '' // error: line & column
};
// message
log.data = textify(log.data, { colors: true });
// level
if (level === 'silly') log.level = `${' S '.cyan.inverse}`;
if (level === 'warn') log.level = `${' W '.yellow.inverse}`;
if (level === 'error') log.level = `${' E '.bgRed}`;
if (level === 'fatal') log.level = `${' F '.red}`;
// error?
if (message instanceof Error || opt.err instanceof Error) {
const err = (message instanceof Error) ? message : opt.err;
const regexResult = err.stack?.match(REGEX_STACK);
if (regexResult) {
log.fname = regexResult[2];
log.lines = `${regexResult[3]}:${regexResult[4]}`;
log.level += `${`(${log.fname}:${log.lines})`.grey} `;
}
// display short error version
if (message instanceof Error && log.data.split('\n').length > 6) {
log.data = log.data.split('\n').slice(0, 6).join('\n');
}
}
// timestamp
const now = dayjs(datetime);
if (opt.time) log.time = `${`[${now.format('YYYY-MM-DD HH:mm:ss.SSS')}]`.grey} `;
// difference
if (opt.ms && (level === 'trace' || level === 'debug')) log.ms = getTimeDifference(now).green.dim;
previous = now;
// multiline: check type because it could be 'true/false' values
if (level === 'trace' && typeof log.data === 'string' && opt.time && log.data.indexOf('\n') !== -1) log.data = `\n${log.data}`;
// colors
if (level === 'silly') {
log.data = resetColors(log.data).cyan;
}
if ((level === 'trace') && (opt.colors !== true)) {
log.data = resetColors(log.data).blue;
}
if (level === 'warn') {
log.data = resetColors(log.data).yellow;
}
if (level === 'error') {
log.data = resetColors(log.data).red;
}
if (level === 'debug' && opt.colors !== true) {
log.data = resetColors(log.data).grey;
}
// result
const res = `${log.time}${log.level}${log.data}${log.ms}`;
return res;
}
// ==============================================
function resetColors(src) {
if (!src || typeof src !== 'string') return src.toString();
const res = src.replace(/\u001b\[\d{1,2}m/g, ''); // eslint-disable-line
return res;
}
// ==============================================
function getTimeDifference(now) {
if (previous === null) return '';
const diff = now.diff(previous);
const sdiff = ` +${timetotf(diff)}`;
return sdiff;
}
module.exports.init = configureConsole;
module.exports.logger = configureLogger;