Added saudo priviliges with flag --sudo

scripts/backup.sh

@@ -25,7 +25,7 @@ get_flag() {
 VALID_FLAGS=(
   "source" "target" "dry-run" "verbose" "compress" "system"
   "ssh-send" "ssh-receive" "link" "ntfs" "name" "exclude"
-  "progress"
+  "progress" "sudo"
 )
 
 # ----------------------------------------------------------------------------
@@ -81,6 +81,7 @@ COMPRESS=false
 SYSTEM=false
 NTFS=false
 PROGRESS=false
+SUDO_PRIV=flase
 
 get_flag "dry-run" && DRY_RUN=true
 get_flag "verbose" && VERBOSE=true
@@ -88,6 +89,7 @@ get_flag "compress" && COMPRESS=true
 get_flag "system" && SYSTEM=true
 get_flag "ntfs" && NTFS=true
 get_flag "progress" && PROGRESS=true
+get_flag "sudo" && SUDO_PRIV=true
 
 # ----------------------------------------------------------------------------
 # Required argument checks
@@ -109,17 +111,6 @@ else
   TARGET_PATH="${TARGET[0]}"
 fi
 
-# -----------------------------------------------------------------------------
-# Prevent recursive backup of target inside source (Ask me how I Know)
-# -----------------------------------------------------------------------------
-if [[ "${SOURCE[0]}" == "/" || "${SOURCE[0]}" == /* ]]; then
-  # Resolve absolute target path
-  TARGET_REAL=$(realpath "$TARGET_PATH")
-
-  if [[ "$TARGET_REAL" == "${SOURCE[0]}"* ]]; then
-    EXCLUDES+=("$TARGET_REAL")
-  fi
-fi
 
 # ----------------------------------------------------------------------------
 # SSH configuration (push or pull)
@@ -167,6 +158,23 @@ if [[ "$SYSTEM" == true ]]; then
   EXCLUDES+=("${SYSTEM_EXCLUDES[@]}")
 fi
 
+# -----------------------------------------------------------------------------
+# Prevent recursive backup of target inside source and Link (Ask me how I Know)
+# -----------------------------------------------------------------------------
+if [[ "${SOURCE[0]}" == "/" || "${SOURCE[0]}" == /* ]]; then
+  # Resolve absolute target path
+  TARGET_REAL=$(realpath "$TARGET_PATH")
+
+  if [[ "$TARGET_REAL" == "${SOURCE[0]}"* ]]; then
+    EXCLUDES+=("$TARGET_REAL")
+  fi
+fi
+
+if [[ -n "$LINK_DIR" ]]; then
+  # Automatically exclude the link destination itself
+  EXCLUDES+=("$LINK_DIR")
+fi
+
 # ----------------------------------------------------------------------------
 # Build rsync command
 # ----------------------------------------------------------------------------
@@ -180,6 +188,7 @@ fi
 
 [[ "$PROGRESS" == true ]] && CMD+=("-P")
 [[ "$PROGRESS" == false ]] && CMD+=("--partial")
+[[ "$SUDO_PRIV" == true ]] && CMD+=("--rsync-path=\"sudo rsync\"")
 
 CMD+=("--delete-excluded")