[initcpiocfg] Support additional hooks-munging

FIXES #2200

src/modules/initcpiocfg/initcpiocfg.conf

@@ -9,3 +9,22 @@
 #
 # Please note that using the systemd hooks result in no access to the emergency recovery shell
 useSystemdHook: false
+
+#
+# Modifications to the standard list of hooks.
+#
+# There are three subkeys:
+# - prepend, which puts hooks at the beginning of the
+#   list of hooks, in the order specified here,
+# - append, which adds hooks at the end of the list of
+#   hooks, in the order specified here,
+# - remove, which removes hooks from the list of hooks,
+#   wherever they may be.
+#
+# The example configuration here yields bogus, <stuff>, bogus
+# initially, and then removes that hook again.
+#
+hooks:
+    prepend: [ bogus ]
+    append: [ bogus ]
+    remove: [ bogus ]

src/modules/initcpiocfg/initcpiocfg.schema.yaml

@@ -7,5 +7,10 @@ additionalProperties: false
 type: object
 properties:
     useSystemdHook: { type: boolean }
-
-
+    hooks:
+        type: object
+        additionalProperties: false
+        properties:
+            prepend: { type: array, items: string }
+            append: { type: array, items: string }
+            remove: { type: array, items: string }

src/modules/initcpiocfg/main.py

@@ -168,6 +168,13 @@ def find_initcpio_features(partitions, root_mount_point):
         hooks.append("keymap")
         hooks.append("consolefont")
 
+    hooks_map = libcalamares.job.configuration.get("hooks", None)
+    if not hooks_map:
+        hooks_map = dict()
+    hooks_prepend = hooks_map.get("prepend", None) or []
+    hooks_append = hooks_map.get("append", None) or []
+    hooks_remove = hooks_map.get("remove", None) or []
+
     modules = []
     files = []
     binaries = []
@@ -240,6 +247,9 @@ def find_initcpio_features(partitions, root_mount_point):
     else:
         hooks.append("fsck")
 
+    # Modify according to the keys in the configuration
+    hooks = [h for h in (hooks_prepend + hooks + hooks_append) if h not in hooks_remove]
+
     return hooks, modules, files, binaries
 
 

src/modules/initcpiocfg/test.yaml

@@ -0,0 +1,7 @@
+# SPDX-FileCopyrightText: no
+# SPDX-License-Identifier: CC0-1.0
+rootMountPoint: /tmp/mount
+partitions:
+  - fs: ext4
+    mountPoint: "/"
+