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update: better formatting of stings, log overhead time

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T31M
2020-01-28 11:45:55 +01:00
parent b77e124758
commit 31d20601a5
1 changed files with 22 additions and 15 deletions
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37
javascript_typescript/logging.js
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@ -3,7 +3,7 @@ Author: T31M <t31m@cyberstuff.me>
2019 2019
*/ */
const { createLogger, format, transports } = require("winston"); const { createLogger, format, transports } = require('winston');
const { combine, timestamp, printf, colorize, splat, json } = format; const { combine, timestamp, printf, colorize, splat, json } = format;
@ -12,29 +12,34 @@ const maxFunctionLogLength = 60;
const myFormat = printf(({ timestamp, loc, level, message }) => { const myFormat = printf(({ timestamp, loc, level, message }) => {
const start = process.hrtime(); const start = process.hrtime();
if (loc) { if (loc) {
return `${timestamp} ${level}: ${message.toString().padEnd(105 - level.length)} ${loc.padEnd( return `${timestamp} ${level}: ${message
60 .toString()
)} log: ${(process.hrtime(start)[1] / 1000000).toFixed(2)}ms`; .padEnd(105 - level.length)} ${loc.padEnd(60)} log: ${(
process.hrtime(start)[1] / 1000000
).toFixed(2)}ms`;
} }
return `${timestamp} ${level}: ${message} ${( return `${timestamp} ${level}: ${message.padEnd(165 - level.length)} log: ${(
process.hrtime(start)[1] / 1000000 process.hrtime(start)[1] / 1000000
).toFixed(2)}ms`; ).toFixed(2)}ms`;
}); });
const preProcessing = format((info, opts) => { const preProcessing = format((info, opts) => {
const stack = new Error().stack.split("\n"); const stack = new Error().stack.split('\n');
stack.shift(); stack.shift();
for (elem of Object.values(stack)) { for (elem of Object.values(stack)) {
elem = elem.toString().trim(); elem = elem.toString().trim();
if (elem.indexOf("node_modules") < 0 && elem.indexOf("utils") < 0) { if (
elem.indexOf('node_modules') < 0 &&
elem.indexOf('utils') < 0
) {
info.loc = elem.slice(3, elem.length); info.loc = elem.slice(3, elem.length);
if (info.loc.length > maxFunctionLogLength) { if (info.loc.length > maxFunctionLogLength) {
info.loc = `${info.loc.slice( info.loc = `${info.loc.slice(
0, 0,
info.loc.indexOf(" ") info.loc.indexOf(' '),
)} -> ${info.loc.slice( )} -> ${info.loc.slice(
info.loc.lastIndexOf("\\") + 1, info.loc.lastIndexOf('\\') + 1,
info.loc.length - 1 info.loc.length - 1,
)}`; )}`;
} }
return info; return info;
@ -44,21 +49,23 @@ const preProcessing = format((info, opts) => {
}); });
module.exports.logger = createLogger({ module.exports.logger = createLogger({
level: "debug", level: 'debug',
format: combine( format: combine(
colorize(), colorize(),
timestamp(), timestamp(),
// splat(), // splat(),
preProcessing(), preProcessing(),
myFormat myFormat,
// json(), // json(),
), ),
// defaultMeta: { service: 'user-service' },
transports: [ transports: [
//
// - Write to all logs with level `info` and below to `combined.log` // - Write to all logs with level `info` and below to `combined.log`
// - Write all logs error (and below) to `error.log`. // - Write all logs error (and below) to `error.log`.
//
// new winston.transports.File({ filename: 'error.log', level: 'error' }), // new winston.transports.File({ filename: 'error.log', level: 'error' }),
// new winston.transports.File({ filename: 'combined.log' }) // new winston.transports.File({ filename: 'combined.log' })
new transports.Console({ format: format.myFormat }),
new transports.Console({ format: format.myFormat }) ],
]
}); });