Create database backup before migrating

.env

@@ -1,2 +1,3 @@
 PORT=5005
 NODE_ENV=development
+VERSION=1.6.8

db/index.js

@@ -2,6 +2,7 @@ const { Sequelize } = require('sequelize');
 const { join } = require('path');
 const fs = require('fs');
 const Umzug = require('umzug');
+const backupDB = require('./utils/backupDb');
 
 const Logger = require('../utils/Logger');
 const logger = new Logger();
@@ -25,9 +26,7 @@ const umzug = new Umzug({
 
 const connectDB = async () => {
   try {
-    if (fs.existsSync('data/db.sqlite')) {
+    backupDB();
-      fs.copyFileSync('data/db.sqlite', 'data/backup_db.sqlite');
-    }
 
     await sequelize.authenticate();
     logger.log('Connected to database');

db/utils/backupDb.js

@@ -0,0 +1,21 @@
+const fs = require('fs');
+
+const backupDB = () => {
+  if (!fs.existsSync('data/db_backups')) {
+    fs.mkdirSync('data/db_backups');
+  }
+
+  const version = process.env.VERSION;
+  const slug = `db-${version.replace(/\./g, '')}-backup.sqlite`;
+
+  const srcPath = 'data/db.sqlite';
+  const destPath = `data/db_backups/${slug}`;
+
+  if (fs.existsSync(srcPath)) {
+    if (!fs.existsSync(destPath)) {
+      fs.copyFileSync(srcPath, destPath);
+    }
+  }
+};
+
+module.exports = backupDB;