Merge branch 'lua-no-yaml' into 'main'

Properly deal with cases when there is no config yaml file at all

See merge request systemrescue/systemrescue-sources!209

airootfs/usr/bin/sysrescue-configuration.lua

@@ -49,6 +49,16 @@ function item_in_list(item, list)
     return false
 end
 
+-- Ensure that the given scope exists in the config table, create it if not
+function ensure_scope(cfg_table, scopename)
+    if (cfg_table == nil) or (type(cfg_table) ~= "table") then
+        cfg_table = { }
+    end
+    if (cfg_table[scopename] == nil) or (type(cfg_table[scopename]) ~= "table") then
+        cfg_table[scopename] = { }
+    end
+end
+
 -- Return the number of items in a table
 function get_table_size(mytable)
     size = 0
@@ -279,12 +289,15 @@ for option, scope in pairs(cmdline_options) do
     optresult = search_cmdline_option(option, false)
     if optresult == true then
         print("- Option '"..option.."' has been enabled on the boot command line")
+        ensure_scope(config, scope)
         config[scope][option] = optresult
     elseif optresult == false then
         print("- Option '"..option.."' has been disabled on the boot command line")
+        ensure_scope(config, scope)
         config[scope][option] = optresult
     elseif optresult ~= nil then
         print("- Option '"..option.."' has been defined as '"..optresult.."' on the boot command line")
+        ensure_scope(config, scope)
         config[scope][option] = optresult
     end
 end

patches/archiso-v43-07-yaml-config.patch

@@ -26,7 +26,7 @@ index 853652e..53215eb 100644
 +            if [[ "${value}" == 'true' ]]; then
 +                echo "Entry '.global.${curentry}' enabled in config: value='${value}'"
 +                eval "${curentry}='y'"
-+            elif [[ "${value}" == 'false' ]]; then
++            elif [[ "${value}" == 'false' ]] || [[ "${value}" == 'null' ]]; then
 +                echo "Entry '.global.${curentry}' disabled in config: value='${value}'"
 +            else
 +                echo "ERROR: Found invalid value for '.global.${curentry}': value='${value}'"