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60a0928d2f
Sichert die SQLite-Datenbank periodisch (Standard: alle 24h) nach server/data/backups und räumt alte Sicherungen auf (Standard: 14 behalten). Zusätzlich per POST /api/backup manuell auslösbar.
43 lines
1.3 KiB
JavaScript
43 lines
1.3 KiB
JavaScript
const path = require('path');
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const fs = require('fs');
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const db = require('./db');
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const dataDir = path.join(__dirname, 'data');
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const backupDir = path.join(dataDir, 'backups');
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const INTERVAL_HOURS = Number(process.env.BACKUP_INTERVAL_HOURS) || 24;
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const RETENTION_COUNT = Number(process.env.BACKUP_RETENTION_COUNT) || 14;
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function timestamp() {
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return new Date().toISOString().replace(/[:.]/g, '-');
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}
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async function runBackup() {
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if (!fs.existsSync(backupDir)) fs.mkdirSync(backupDir, { recursive: true });
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const target = path.join(backupDir, `data-${timestamp()}.db`);
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await db.backup(target);
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cleanupOldBackups();
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console.log(`Backup geschrieben: ${target}`);
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return target;
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}
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function cleanupOldBackups() {
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const files = fs
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.readdirSync(backupDir)
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.filter((f) => f.startsWith('data-') && f.endsWith('.db'))
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.sort();
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const excess = files.length - RETENTION_COUNT;
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for (let i = 0; i < excess; i++) {
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fs.unlinkSync(path.join(backupDir, files[i]));
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}
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}
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function startBackupScheduler() {
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runBackup().catch((err) => console.error('Backup fehlgeschlagen:', err));
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setInterval(() => {
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runBackup().catch((err) => console.error('Backup fehlgeschlagen:', err));
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}, INTERVAL_HOURS * 60 * 60 * 1000);
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}
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module.exports = { startBackupScheduler, runBackup };
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