hostapp-update-hooks: Soft include balena-config-defaults

a203bcd introduced a dependency
on /usr/sbin/balena-config-defaults to hostapp-update-hooks, however
during HUP the script is not only executed in the "new" OS container
but directly in the context of the "old" OS as well, so
/usr/sbin/balena-config-defaults needs to exist there.
The file was introduced in balenaOS v2.99.28, so trying to HUP
from anything before that will fail.

This patch changes this to a soft dependency so even if the file
is missing HUP will continue.

Change-type: patch
Signed-off-by: Michal Toman <michalt@balena.io>

meta-balena-common/recipes-support/hostapp-update-hooks/files/hostapp-update-hooks

@@ -5,7 +5,7 @@ set -o errexit
 # shellcheck disable=SC1091
 . /usr/libexec/os-helpers-logging
 # shellcheck disable=SC1091
-. /usr/sbin/balena-config-defaults
+[ -f "/usr/sbin/balena-config-defaults" ] && . /usr/sbin/balena-config-defaults
 
 old_os_before_hooks=0
 old_os_after_hooks=0
@@ -42,7 +42,10 @@ Options:
 EOF
 }
 
-DEBUG=$(jq -r '.debug // empty' "${CONFIG_PATH}")
+DEBUG="0"
+if [ -n "${CONFIG_PATH}" ]; then
+	DEBUG=$(jq -r '.debug // empty' "${CONFIG_PATH}")
+fi
 run_hook () {
 	if [ "${DEBUG}" = "1" ]; then
 		/bin/sh -x "$1"

meta-balena-common/recipes-support/os-helpers/os-helpers/os-helpers-sb

@@ -21,5 +21,9 @@
 [ -f "/usr/libexec/os-helpers-efi" ] && . /usr/libexec/os-helpers-efi
 
 is_secured() {
+	if ! command -v user_mode_enabled; then
+		return 1
+	fi
+
 	user_mode_enabled
 }