45 lines
1.3 KiB
JavaScript
45 lines
1.3 KiB
JavaScript
import fs from 'node:fs';
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import path from 'node:path';
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import winston from 'winston';
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import { config } from '../config.js';
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fs.mkdirSync(config.logDir, { recursive: true });
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const logFormat = winston.format.combine(
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winston.format.timestamp(),
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winston.format.errors({ stack: true }),
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winston.format.json()
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);
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export const logger = winston.createLogger({
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level: config.isProduction ? 'info' : 'debug',
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format: logFormat,
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transports: [
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new winston.transports.File({ filename: path.join(config.logDir, 'system.log'), maxsize: 5_000_000, maxFiles: 5 }),
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...(!config.isProduction
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? [new winston.transports.Console({
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format: winston.format.combine(winston.format.colorize(), winston.format.simple())
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})]
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: [])
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]
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});
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export function readSystemLog(limit = 300) {
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// System logs are line-delimited JSON; malformed historic lines are returned as plain messages.
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const file = path.join(config.logDir, 'system.log');
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if (!fs.existsSync(file)) return [];
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const content = fs.readFileSync(file, 'utf8');
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return content
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.trim()
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.split('\n')
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.filter(Boolean)
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.slice(-limit)
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.map((line) => {
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try {
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return JSON.parse(line);
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} catch {
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return { level: 'info', message: line };
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}
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});
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}
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