Strip "library" prefix from official registry

Fixes #71

Author: RealOrangeOne

db-auto-backup.py

@@ -169,6 +169,11 @@ def get_container_names(container: Container) -> Iterable[str]:
     names = set()
     for tag in container.image.tags:
         registry, image = docker.auth.resolve_repository_name(tag)
+
+        # HACK: Strip "library" from official images
+        if registry == docker.auth.INDEX_NAME:
+            image = image.removeprefix("library/")
+
         image, tag_name = image.split(":", 1)
         names.add(image)
     return names

tests/tests.py

@@ -101,6 +101,8 @@ def test_uptime_kuma_success_hook_url(monkeypatch: Any) -> None:
         ("ghcr.io/realorangeone/db-auto-backup:latest", "realorangeone/db-auto-backup"),
         ("theorangeone/db-auto-backup:latest:latest", "theorangeone/db-auto-backup"),
         ("lscr.io/linuxserver/mariadb:latest", "linuxserver/mariadb"),
+        ("docker.io/library/postgres:14-alpine", "postgres"),
+        ("library/postgres:14-alpine", "postgres"),
     ],
 )
 def test_get_container_names(tag: str, name: str) -> None: