buildiso: display_settings() without root; use printf for live.conf

bin/buildiso.in

@@ -161,12 +161,12 @@ done
 
 shift $(($OPTIND - 1))
 
+${pretend} && display_settings && exit 1
+
 check_root
 
 prepare_traps
 
 prepare_build
 
-${pretend} && display_settings && exit 1
-
 build

lib/util-iso-profile.sh

@@ -60,7 +60,7 @@ load_profile(){
     [[ -z ${PASSWORD} ]] && PASSWORD="artix"
 
     if [[ -z ${ADDGROUPS} ]];then
-        ADDGROUPS="video,power,storage,optical,network,lp,scanner,wheel,users,log"
+        ADDGROUPS="video,power,cdrom,network,lp,scanner,wheel,users,log"
     fi
 
     if [[ -z ${SERVICES[@]} ]];then
@@ -82,23 +82,14 @@ load_profile(){
 }
 
 write_live_session_conf(){
-    local path=$1${SYSCONFDIR}
-    [[ ! -d $path ]] && mkdir -p "$path"
-    local conf=$path/live.conf
-    msg2 "Writing %s" "${conf##*/}"
-    echo '# live session configuration' > ${conf}
-    echo '' >> ${conf}
-    echo '# autologin' >> ${conf}
-    echo "AUTOLOGIN=${AUTOLOGIN}" >> ${conf}
-    echo '' >> ${conf}
-    echo '# live user name' >> ${conf}
-    echo "USERNAME=${USERNAME}" >> ${conf}
-    echo '' >> ${conf}
-    echo '# live password' >> ${conf}
-    echo "PASSWORD=${PASSWORD}" >> ${conf}
-    echo '' >> ${conf}
-    echo '# live group membership' >> ${conf}
-    echo "ADDGROUPS='${ADDGROUPS}'" >> ${conf}
+    msg2 "Writing live.conf"
+    local conf=''
+    conf+=$(printf '%s\n' '# live session configuration')
+    conf+=$(printf "\nAUTOLOGIN=%s\n" "${AUTOLOGIN}")
+    conf+=$(printf "\nUSER_NAME=%s\n" "${USER_NAME}")
+    conf+=$(printf "\nPASSWORD=%s\n" "${PASSWORD}")
+    conf+=$(printf "\nADDGROUPS='%s'\n" "${ADDGROUPS}")
+    printf '%s' "$conf"
 }
 
 load_pkgs(){

lib/util-iso.sh

@@ -327,7 +327,8 @@ configure_live_image(){
     configure_system "$fs"
     configure_services "$fs"
     configure_calamares "$fs"
-    write_live_session_conf "$fs"
+    [[ ! -d "$fs/etc/artools" ]] && mkdir -p "$fs/etc/artools"
+    write_live_session_conf > "$fs/etc/artools/live.conf"
     msg "Done configuring [livefs]"
 }
 

lib/util-yaml.sh

@@ -9,7 +9,7 @@
 # GNU General Public License for more details.
 
 write_yaml_header(){
-    printf '%s\n%s' "%YAML 1.2" '---'
+    printf '%s' '---'
 }
 
 write_empty_line(){