pmb: Also apply ext4 metadata_csum workaround for archived ports

Ports in the archived category may be downstream ports. While mainline
ports also are allowed, archived ports should generally not be relied on
anyway so the loss of ext4 reliability on those shouldn't matter.

Fixes 89a80265de

Part-of: https://gitlab.postmarketos.org/postmarketOS/pmbootstrap/-/merge_requests/2640

pmb/helpers/devices.py

@@ -51,6 +51,21 @@ class DeviceCategory(Enum):
             DeviceCategory.DOWNSTREAM,
         ]
 
+    def allows_downstream_ports(self) -> bool:
+        """Check whether a given category is allowed to contain downstream ports. This does not
+        necessarily mean that it exclusively contains downstream ports.
+
+        :returns: True, if the category allows downstream ports, False if only allows mainline ports.
+        """
+
+        match self:
+            case DeviceCategory.ARCHIVED | DeviceCategory.DOWNSTREAM:
+                return True
+            case DeviceCategory.TESTING | DeviceCategory.COMMUNITY | DeviceCategory.MAIN:
+                return False
+            case _:
+                raise AssertionError
+
     def explain(self) -> str:
         """Provide an explanation of a given category.
 

pmb/install/format.py

@@ -1,7 +1,7 @@
 # Copyright 2023 Oliver Smith
 # SPDX-License-Identifier: GPL-3.0-or-later
 from pmb.helpers import logging
-from pmb.helpers.devices import get_device_category_by_name, DeviceCategory
+from pmb.helpers.devices import get_device_category_by_name
 import pmb.chroot
 from pmb.core import Chroot
 from pmb.core.context import get_context
@@ -177,7 +177,7 @@ def format_and_mount_root(
         if filesystem == "ext4":
             device_category = get_device_category_by_name(get_context().config.device)
 
-            if device_category == DeviceCategory.DOWNSTREAM:
+            if device_category.allows_downstream_ports():
                 # Some downstream kernels don't support metadata_csum (#1364).
                 # When changing the options of mkfs.ext4, also change them in the
                 # recovery zip code (see 'grep -r mkfs\.ext4')!