"--clean" flag not working as expected

[jerinpetergeorge]

Describe the bug

The --clean flag gracefully ignoring the DBBACKUP_CLEANUP_KEEP value

To Reproduce

# settings.py

DBBACKUP_STORAGE = 'django.core.files.storage.FileSystemStorage'
DBBACKUP_DEFAULT_SERVER_NAME = env("DBBACKUP_DEFAULT_SERVER_NAME", default="localhost")
def backup_filename(databasename, servername, datetime, extension, content_type):
    servername = DBBACKUP_DEFAULT_SERVER_NAME or servername
    directory = f"{DBBACKUP_PREFIX}/{databasename}"

    file_name = f"{servername}-{datetime}.{extension}"
    return f"{directory}/{file_name}"


DBBACKUP_FILENAME_TEMPLATE = backup_filename
DBBACKUP_CLEANUP_KEEP = 2
DBBACKUP_PREFIX = "test-prefix"

# terminal output

╰(generic-django-example-Kc6WXfau)─λ ls -al test-prefix/default/                                                                                                                                                         0 (0.864s) < 09:20:29
total 384
drwxrwxrwx 1 root root  4096 Apr 19 09:20 ./
drwxrwxrwx 1 root root     0 Apr 19 09:19 ../
-rwxrwxrwx 1 root root 74585 Apr 19 09:19 localhost-2023-04-19-034951.psql.bin*
-rwxrwxrwx 1 root root 74585 Apr 19 09:20 localhost-2023-04-19-035022.psql.bin*
-rwxrwxrwx 1 root root 74585 Apr 19 09:20 localhost-2023-04-19-035024.psql.bin*
-rwxrwxrwx 1 root root 74585 Apr 19 09:20 localhost-2023-04-19-035026.psql.bin*
-rwxrwxrwx 1 root root 74585 Apr 19 09:20 localhost-2023-04-19-035028.psql.bin*

Expected behavior

The test-prefix/default/ directory should only contain files equal to the value of DBBACKUP_CLEANUP_KEEP

Versions

Django-dbbackup

• django-dbbackup==4.0.2

External tools

• Python 3.9.11
• Django 3.2.18
• OS: Linux