cache fix it script

fix_cache_permissions.sh

@@ -0,0 +1,45 @@
+#!/bin/bash
+
+# LEDMatrix Cache Permissions Fix Script
+# This script fixes permissions on the cache directory so it's writable by the daemon user
+
+echo "Fixing LEDMatrix cache directory permissions..."
+
+CACHE_DIR="/var/cache/ledmatrix"
+
+if [ ! -d "$CACHE_DIR" ]; then
+    echo "Cache directory does not exist. Run setup_cache.sh first."
+    exit 1
+fi
+
+# Get the real user (not root when running with sudo)
+REAL_USER=${SUDO_USER:-$USER}
+
+echo "Current cache directory permissions:"
+ls -la "$CACHE_DIR"
+
+echo ""
+echo "Fixing permissions..."
+
+# Make the directory writable by the daemon user (which the system runs as)
+sudo chmod 777 "$CACHE_DIR"
+
+# Also set ownership to daemon:daemon to match the cache files
+sudo chown daemon:daemon "$CACHE_DIR"
+
+echo ""
+echo "Updated cache directory permissions:"
+ls -la "$CACHE_DIR"
+
+echo ""
+echo "Testing write access..."
+if sudo -u daemon test -w "$CACHE_DIR"; then
+    echo "✓ Cache directory is now writable by daemon user"
+else
+    echo "✗ Cache directory is still not writable by daemon user"
+    exit 1
+fi
+
+echo ""
+echo "Permissions fix complete! LEDMatrix should now use persistent caching."
+echo "The cache will survive system restarts."