Replace yq with parse_dtbo_metadata

debian/control

@@ -20,7 +20,8 @@ Depends: device-tree-compiler,
          parted,
          pkexec | policykit-1 (<< 122-1),
          whiptail,
-         yq,
+         python3,
+         python3-yaml,
          u-boot-menu,
          ${misc:Depends},
 Suggests: aicrf-test,

src/usr/lib/rsetup/cli/u-boot-menu.sh

@@ -3,6 +3,8 @@
 # shellcheck source=src/usr/lib/rsetup/mod/overlay.sh
 source "/usr/lib/rsetup/mod/overlay.sh"
 
+PARSE_DTBO_METADATA="/usr/lib/rsetup/mod/parse_dtbo_metadata"
+
 ALLOWED_RCONFIG_FUNC+=("load_u-boot_setting")
 
 check_overlay_conflict_init() {
@@ -135,7 +137,7 @@ rebuild_overlays() {
 
 parse_dtbo() {
     local output
-    output="$(dtc -I dtb -O dts "$1" 2>/dev/null | dtc -I dts -O yaml 2>/dev/null | yq -r ".[0].metadata.$2[0]" | tr '\0' '\n')"
+    output="$(dtc -I dtb -O dts "$1" 2>/dev/null | dtc -I dts -O yaml 2>/dev/null | "$PARSE_DTBO_METADATA" "$2")"
 
     if (( $# >= 3 ))
     then

src/usr/lib/rsetup/mod/parse_dtbo_metadata

@@ -0,0 +1,12 @@
+#!/usr/bin/env python3
+# -*- coding: UTF-8 -*-
+
+from sys import argv, stdin
+import yaml
+
+yaml.CLoader.add_constructor('!u8', yaml.constructor.FullConstructor.construct_yaml_seq)
+
+try:
+    print(yaml.load(stdin.read(), Loader=yaml.CLoader)[0]['metadata'][argv[1]][0].replace("\0", "\n"))
+except KeyError as e:
+    print("null")