Add backup CLI command (#571)

bookmarks/management/commands/backup.py

@@ -0,0 +1,26 @@
+import sqlite3
+import os
+
+from django.core.management.base import BaseCommand
+
+
+class Command(BaseCommand):
+    help = "Creates a backup of the linkding database"
+
+    def add_arguments(self, parser):
+        parser.add_argument('destination', type=str, help='Backup file destination')
+
+    def handle(self, *args, **options):
+        destination = options['destination']
+
+        def progress(status, remaining, total):
+            self.stdout.write(f'Copied {total-remaining} of {total} pages...')
+
+        source_db = sqlite3.connect(os.path.join('data', 'db.sqlite3'))
+        backup_db = sqlite3.connect(destination)
+        with backup_db:
+            source_db.backup(backup_db, pages=50, progress=progress)
+        backup_db.close()
+        source_db.close()
+
+        self.stdout.write(self.style.SUCCESS(f'Backup created at {destination}'))