host-backup.sh: Added "ALL" option and include timestamp in backup filename (#8276)

* Update host-backup.sh

added an "all" button to include all folders instead of clicking every folder by itself

* Update host-backup.sh

added a timestamp in the filename incase the user wants to make several backups on the same time.
Otherweise the newest backup will overwrite the earlier one.

Author: stumpyofpain

tools/pve/host-backup.sh

@@ -41,6 +41,7 @@ function perform_backup {
 
   # Build a list of directories for backup
   local CTID_MENU=()
+  CTID_MENU=("ALL" "Backup all folders" "OFF")
   while read -r dir; do
     CTID_MENU+=("$(basename "$dir")" "$dir " "OFF")
   done < <(ls -d "${DIR}"*)
@@ -52,7 +53,13 @@ function perform_backup {
       "\nSelect what files/directories to backup:\n" 16 $(((${#DIRNAME} + 2) + 88)) 6 "${CTID_MENU[@]}" 3>&1 1>&2 2>&3) || return
 
     for selected_dir in ${HOST_BACKUP//\"/}; do
-      selected_directories+=("${DIR}$selected_dir")
+      if [[ "$selected_dir" == "ALL" ]]; then
+        # if ALL was chosen, secure all folders
+        selected_directories=("${DIR}"*/)
+        break
+      else
+        selected_directories+=("${DIR}$selected_dir")
+      fi
     done
   done
 
@@ -62,7 +69,7 @@ function perform_backup {
   read -p "Press ENTER to continue..."
   header_info
   echo "Working..."
-  tar -czf "$BACKUP_PATH$BACKUP_FILE-$(date +%Y_%m_%d).tar.gz" --absolute-names "${selected_directories[@]}"
+  tar -czf "$BACKUP_PATH$BACKUP_FILE-$(date +%Y_%m_%dT%H_%M).tar.gz" --absolute-names "${selected_directories[@]}"
   header_info
   echo -e "\nFinished"
   echo -e "\e[1;33m \nA backup is rendered ineffective when it remains stored on the host.\n \e[0m"