Sync with development-SDXPINN

ipk-source/sdxpinn-mount-fix/root/usr/sbin/init-overlay-watchdog.sh

@@ -0,0 +1,39 @@
+#!/bin/ash
+
+# Paths to monitor and synchronize
+WATCH_DIR="/etc/rc.d"
+TARGET_DIR="/real_rootfs/etc/rc.d"
+
+# Function to synchronize init scripts
+synchronize_init_scripts() {
+    mount -o remount,rw /real_rootfs
+    # Copy new or updated symlinks from WATCH_DIR to TARGET_DIR
+    for link in "$WATCH_DIR"/*; do
+        if [ -L "$link" ]; then
+            link_name=$(basename "$link")
+            if [ ! -e "$TARGET_DIR/$link_name" ] || [ "$link" -nt "$TARGET_DIR/$link_name" ]; then
+                cp -af "$link" "$TARGET_DIR/$link_name"
+            fi
+        fi
+    done
+
+    # Remove symlinks in TARGET_DIR that no longer exist in WATCH_DIR
+    for link in "$TARGET_DIR"/*; do
+        if [ -L "$link" ]; then
+            link_name=$(basename "$link")
+            if [ ! -e "$WATCH_DIR/$link_name" ]; then
+                rm -f "$TARGET_DIR/$link_name"
+            fi
+        fi
+    done
+    mount -o remount,ro /real_rootfs
+}
+
+# Initial synchronization
+synchronize_init_scripts
+
+# Monitor WATCH_DIR for changes using inotifywait
+while true; do
+    inotifywait -e create,delete,modify,move "$WATCH_DIR"
+    synchronize_init_scripts
+done