chore(ops): optimize update.sh to skip rebuild when no changes detected

.gitignore

@@ -40,6 +40,7 @@ dist/
 .sisyphus/boulder.json
 connect_remote.txt
 .sisyphus/drafts/
+.update-state
 
 # Node
 node_modules/

update.sh

@@ -5,6 +5,10 @@ echo "========================================="
 echo "   NexusGuard SD-WAN: SYSTEM UPDATE      "
 echo "========================================="
 
+STATE_FILE=".update-state"
+FORCE_REBUILD=false
+[ "$1" = "--force" ] && FORCE_REBUILD=true
+
 # 1. Pastikan file env ada
 if [ ! -f .env ]; then
     echo "[-] ERROR: .env file not found. Please run ./setup.sh first to initialize configuration."
@@ -13,40 +17,71 @@ fi
 
 # 2. Update Code dari Git (Main & Submodules)
 echo "[+] Pulling latest source code from repository..."
-git pull origin main || echo "[!] Git pull for main repo skipped or failed, continuing..."
+GIT_PULL_FAILED=false
+git pull origin main || { GIT_PULL_FAILED=true; echo "[!] Git pull for main repo skipped or failed, continuing..."; }
 
 echo "[+] Syncing and updating submodules..."
-git submodule update --init --recursive --remote || echo "[!] Git submodule update skipped or failed."
+SUBMODULE_FAILED=false
+git submodule update --init --recursive --remote || { SUBMODULE_FAILED=true; echo "[!] Git submodule update skipped or failed."; }
 
-# 3. Source variabel dari .env untuk dimasukkan ke build process (contoh: VITE_API_BASE_URL)
+# 3. Hitung state hash (git + .env) untuk deteksi perubahan
+CURRENT_HASH=$(echo "$(git rev-parse HEAD 2>/dev/null)$(git submodule status 2>/dev/null)$(sha256sum .env 2>/dev/null)" | sha256sum | cut -d" " -f1)
+
+# 4. Tentukan apakah perlu rebuild
+NEEDS_REBUILD=false
+if [ "$FORCE_REBUILD" = true ]; then
+    echo "[+] --force flag detected. Will rebuild."
+    NEEDS_REBUILD=true
+elif [ "$GIT_PULL_FAILED" = true ] || [ "$SUBMODULE_FAILED" = true ]; then
+    echo "[!] Git operation failed. Rebuilding as safe fallback."
+    NEEDS_REBUILD=true
+elif [ ! -f "$STATE_FILE" ]; then
+    echo "[+] First run (no state file found). Full cycle required."
+    NEEDS_REBUILD=true
+else
+    PREVIOUS_HASH=$(cat "$STATE_FILE" 2>/dev/null || echo "")
+    if [ "$CURRENT_HASH" != "$PREVIOUS_HASH" ]; then
+        echo "[+] State hash changed. Rebuilding."
+        NEEDS_REBUILD=true
+    else
+        echo "[-] No changes detected. Skipping build and restart."
+    fi
+fi
+
+# 5. Rebuild cycle — hanya jika ada perubahan
+if [ "$NEEDS_REBUILD" = true ]; then
+    # Source .env untuk build process
     echo "[+] Sourcing environment variables from root .env..."
     set -a && . .env && set +a
 
-# 4. Gracefully stop existing containers, Rebuild Images & Restart
     echo "[+] Stopping existing containers..."
     docker compose down
 
-echo "[+] Rebuilding Docker images (injecting new environment variables)..."
-# Menggunakan --build-arg untuk memastikan Vue/Vite membaca domain API baru
+    echo "[+] Rebuilding Docker images..."
     docker compose build --build-arg VITE_API_BASE_URL=$VITE_API_BASE_URL
 
     echo "[+] Restarting containers..."
     docker compose up -d
 
-# 5. Run Database Migrations
     echo "[+] Running automated database migrations..."
     docker exec nexus-guard-suite-server-core-1 ./server-core -migrate-prod || echo "[!] Migration skipped or failed. It might not be needed."
 
-# 5b. Backfill interface addresses for existing nodes (idempotent)
-echo "[+] Backfilling interface addresses for existing nodes..."
+    echo "[+] Backfilling interface addresses..."
     docker exec nexus-guard-suite-server-core-1 ./server-core -backfill-interface 2>/dev/null || echo "[!] Backfill skipped or not needed."
 
-# 6. Cleanup
-echo "[+] Cleaning up unused dangling images to free up space..."
+    echo "[+] Cleaning up unused dangling images..."
     docker image prune -f
 
+    # Simpan state secara atomik (tmp + mv untuk cegah korupsi file)
+    echo "$CURRENT_HASH" > "$STATE_FILE.tmp" && mv "$STATE_FILE.tmp" "$STATE_FILE"
+
     echo "========================================="
     echo " Update & Deployment complete!           "
     echo " Dashboard : http://localhost:${WEB_PORT:-80}"
     echo " API Port  : ${API_PORT:-8080}"
     echo "========================================="
+else
+    echo "========================================="
+    echo " No update needed — system is current.   "
+    echo "========================================="
+fi