@eggjs/logrotator
Version:
logrotator for egg
70 lines • 5.97 kB
JavaScript
import path from 'node:path';
import fs from 'node:fs/promises';
import { exists } from 'utility';
import moment from 'moment';
import { walkLoggerFile } from '../../lib/utils.js';
// clean all xxx.log.YYYY-MM-DD before expired date.
export default (app) => ({
schedule: {
type: 'worker', // only one worker run this task
cron: '0 0 * * *', // run every day at 00:00
},
async task() {
const logger = app.coreLogger;
const logDirs = new Set();
const loggerFiles = walkLoggerFile(app.loggers);
for (const file of loggerFiles) {
const logDir = path.dirname(file);
logDirs.add(logDir);
}
const maxDays = app.config.logrotator.maxDays;
if (maxDays && maxDays > 0) {
try {
const tasks = Array.from(logDirs, logDir => removeExpiredLogFiles(logDir, maxDays, logger));
await Promise.all(tasks);
}
catch (err) {
logger.error(err);
}
}
logger.info('[@eggjs/logrotator] clean all log before %s days', maxDays);
},
});
// remove expired log files: xxx.log.YYYY-MM-DD
async function removeExpiredLogFiles(logDir, maxDays, logger) {
// ignore not exists dir
const stat = await exists(logDir);
if (!stat) {
logger.warn(`[@eggjs/logrotator] logDir ${logDir} not exists`);
return;
}
const files = await fs.readdir(logDir);
const expiredDate = moment().subtract(maxDays, 'days').startOf('date');
const names = files.filter(file => {
const name = path.extname(file).slice(1);
if (!/^\d{4}-\d{2}-\d{2}/.test(name)) {
return false;
}
const date = moment(name, 'YYYY-MM-DD').startOf('date');
if (!date.isValid()) {
return false;
}
return date.isBefore(expiredDate);
});
if (names.length === 0) {
return;
}
logger.info(`[@eggjs/logrotator] start remove ${logDir} files: ${names.join(', ')}`);
await Promise.all(names.map(async (name) => {
const logFile = path.join(logDir, name);
try {
await fs.unlink(logFile);
}
catch (e) {
const err = e;
err.message = `[@eggjs/logrotator] remove logFile ${logFile} error, ${err.message}`;
logger.error(err);
}
}));
}
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