system: make configuration restore less selective on backup file names

Restoring system settings expects a filename of 14 characters followed
by .tar ($DATESTAMP.tar from the backup file the addon creates).

Change to glob onto whatever *.tar file gets put into /storage/.restore/
at the busybox init and system restore level. The addon still creates
and expects the $DATESTAMP.tar file, so users will need to use this
feature by ssh or other method.

Signed-off-by: Ian Leonard <antonlacon@gmail.com>

packages/mediacenter/LibreELEC-settings/package.mk

@@ -14,14 +14,16 @@ PKG_LONGDESC="LibreELEC-settings: is a settings dialog for LibreELEC"
 PKG_MAKE_OPTS_TARGET="DISTRONAME=$DISTRONAME ROOT_PASSWORD=$ROOT_PASSWORD"
 
 if [ "$DISPLAYSERVER" = "x11" ]; then
-  PKG_DEPENDS_TARGET="$PKG_DEPENDS_TARGET setxkbmap"
+  PKG_DEPENDS_TARGET+=" setxkbmap"
 else
-  PKG_DEPENDS_TARGET="$PKG_DEPENDS_TARGET bkeymaps"
+  PKG_DEPENDS_TARGET+=" bkeymaps"
 fi
 
 post_makeinstall_target() {
   mkdir -p $INSTALL/usr/lib/libreelec
     cp $PKG_DIR/scripts/* $INSTALL/usr/lib/libreelec
+    sed -e "s/@DISTRONAME@/$DISTRONAME/g" \
+      -i $INSTALL/usr/lib/libreelec/backup-restore
 
   ADDON_INSTALL_DIR=$INSTALL/usr/share/kodi/addons/service.libreelec.settings
 

packages/mediacenter/LibreELEC-settings/scripts/backup-restore

@@ -2,39 +2,33 @@
 
 # SPDX-License-Identifier: GPL-2.0-or-later
 # Copyright (C) 2009-2014 Stephan Raue (stephan@openelec.tv)
+# Copyright (C) 2020-present Team LibreELEC (https://libreelec.tv)
 
 . /usr/lib/libreelec/functions
 
-# Get NAME, which is DISTRONAME, ie. LibreELEC
-. /etc/os-release
-
 hidecursor
 
-BACKUP_FILE=`ls -1 /storage/.restore/??????????????.tar 2>/dev/null | tail -1`
+BACKUP_FILE=$(find /storage/.restore/ -name "*.tar" -print -quit 2>/dev/null)
 
-if [ -f "$BACKUP_FILE" ] ; then
-  echo "RESTORE IN PROGRESS"
-  echo ""
-  echo "Please do not reboot or turn off your ${NAME} device!"
-  echo ""
+
+if [ -f "${BACKUP_FILE}" ]; then
+  echo -e "RESTORE IN PROGRESS\n"
+  echo -e "Please do not reboot or turn off your @DISTRONAME@ device!\n"
 
   StartProgress spinner "Checking backup file... "
-    tar tf $BACKUP_FILE &>/dev/null
-    ret=$?
+    tar tf "${BACKUP_FILE}" &>/dev/null
 
-  if [ $ret -eq 0 ] ; then
+  if [ $? -eq 0 ]; then
     StopProgress "OK"
 
-    echo
-    echo "This may take some time to complete, please be patient."
-    echo
+    echo -e "\nThis may take some time to complete, please be patient.\n"
 
     StartProgress spinner "Restoring... "
-      rm -rf /storage/.kodi &>/dev/null
-      rm -rf /storage/.cache &>/dev/null
-      rm -rf /storage/.config &>/dev/null
-      tar xf $BACKUP_FILE -C / &>/dev/null
-      rm -f $BACKUP_FILE &>/dev/null
+      rm -rf /storage/.kodi \
+             /storage/.cache \
+             /storage/.config &>/dev/null
+      tar xf "${BACKUP_FILE}" -C / &>/dev/null
+      rm -f "${BACKUP_FILE}" &>/dev/null
       sync
       StopProgress "done!"
 
@@ -43,12 +37,10 @@ if [ -f "$BACKUP_FILE" ] ; then
   else
     StopProgress "FAILED"
 
-    echo
-    echo "Backup file is not valid, or corrupt."
+    echo -e "\nBackup file is not valid, or corrupt.\n"
 
-    echo
     StartProgress spinner "Removing file to allow normal restart... "
-      rm -f $BACKUP_FILE &>/dev/null
+      rm -f "${BACKUP_FILE}" &>/dev/null
       sync
       StopProgress "done"
 
@@ -57,5 +49,4 @@ if [ -f "$BACKUP_FILE" ] ; then
   fi
 fi
 
-sync
 reboot -f

packages/sysutils/busybox/scripts/init

@@ -1134,7 +1134,7 @@ if [ "$STORAGE_NETBOOT" = "yes" ]; then
   echo "" > /sysroot/dev/.storage_netboot
 fi
 
-BACKUP_FILE=$(ls -1 /sysroot/storage/.restore/??????????????.tar 2>/dev/null | head -n 1)
+BACKUP_FILE=$(ls -1 /sysroot/storage/.restore/*.tar 2>/dev/null | head -n 1)
 
 if [ -f /sysroot/storage/.please_resize_me ]; then
   INIT_UNIT="--unit=fs-resize.target"