fosrl.pangolin/server/logger.ts

import "winston-daily-rotate-file";

import environment from "@server/environment";
import * as winston from "winston";

const hformat = winston.format.printf(
    ({ level, label, message, timestamp, ...metadata }) => {
        let msg = `${timestamp} [${level}]${label ? `[${label}]` : ""}: ${message} `;
        if (Object.keys(metadata).length > 0) {
            msg += JSON.stringify(metadata);
        }
        return msg;
    },
);

const transports: any = [
    new winston.transports.Console({
        format: winston.format.combine(
            winston.format.colorize(),
            winston.format.splat(),
            winston.format.timestamp(),
            hformat,
        ),
    }),
];

if (environment.SAVE_LOGS) {
    transports.push(
        new winston.transports.DailyRotateFile({
            filename: `${environment.CONFIG_PATH}/logs/pangolin-%DATE%.log`,
            datePattern: "YYYY-MM-DD",
            zippedArchive: true,
            maxSize: "20m",
            maxFiles: "7d",
            createSymlink: true,
            symlinkName: "pangolin.log",
        }),
    );
    transports.push(
        new winston.transports.DailyRotateFile({
            filename: `${environment.CONFIG_PATH}/logs/.machinelogs-%DATE%.json`,
            datePattern: "YYYY-MM-DD",
            zippedArchive: true,
            maxSize: "20m",
            maxFiles: "1d",
            createSymlink: true,
            symlinkName: ".machinelogs.json",
            format: winston.format.combine(
				winston.format.timestamp(),
                winston.format.splat(),
                winston.format.json(),
            ),
        }),
    );
}

const logger = winston.createLogger({
    level: environment.LOG_LEVEL.toLowerCase(),
    format: winston.format.combine(
        winston.format.splat(),
        winston.format.timestamp(),
        hformat,
    ),
    transports,
});

export default logger;