refactor: add update tracking, dir checks, and safer cleanup

update-Nitrov3.sh

@@ -68,11 +68,16 @@ clean_node_modules() {
 
 echo "=== Starting EPIC WEB CONTROL Update ==="
 
+HAD_UPDATES=false
+NITRO_BUILT=false
+
 # ----------------------------------------
 # 1. Update and Build Emulator
 # ----------------------------------------
 echo "--> Updating Emulator..."
-cd "$EMULATOR_DIR/Emulator/"
+EMULATOR_REPO_DIR="$EMULATOR_DIR/Emulator"
+[ -d "$EMULATOR_REPO_DIR" ] || { echo "=== ❌ Directory not found: $EMULATOR_REPO_DIR ==="; exit 1; }
+cd "$EMULATOR_REPO_DIR"
 git stash --include-untracked || true
 OLD_HEAD=$(git rev-parse HEAD)
 git checkout main
@@ -96,6 +101,7 @@ fi
 
 if [ "$(git rev-parse HEAD)" != "$OLD_HEAD" ]; then
     echo "--> New commits detected, building emulator..."
+    HAD_UPDATES=true
     mvn package
 
     JAR_FILE=$(find target -maxdepth 1 -name 'Habbo-*-jar-with-dependencies.jar' -printf '%T@ %p\n' 2>/dev/null | sort -rn | sed -n '1s/^[0-9.]* //p' | xargs basename)
@@ -107,6 +113,7 @@ if [ "$(git rev-parse HEAD)" != "$OLD_HEAD" ]; then
 
     echo "--> Found jar file: $JAR_FILE"
     echo "--> Updating emulator launch file..."
+    [ -d target ] || { echo "=== ❌ Build directory 'target' not found ==="; exit 1; }
     cd target/
 
     cat << EOF > emulator
@@ -127,7 +134,8 @@ fi
 # 2. Update Nitro_Render_V3
 # ----------------------------------------
 echo "--> Updating Nitro_Render_V3..."
-cd "$NITRO_RENDERER/"
+[ -d "$NITRO_RENDERER" ] || { echo "=== ❌ Directory not found: $NITRO_RENDERER ==="; exit 1; }
+cd "$NITRO_RENDERER"
 
 git stash --include-untracked || true
 OLD_HEAD=$(git rev-parse HEAD)
@@ -136,6 +144,7 @@ git pull
 
 if [ "$(git rev-parse HEAD)" != "$OLD_HEAD" ]; then
     echo "--> New commits detected, running yarn install for Nitro_Render_V3..."
+    HAD_UPDATES=true
     yarn install --frozen-lockfile || { echo "--> Retrying with clean node_modules..."; clean_node_modules && yarn install; }
 else
     echo "--> Nitro_Render_V3 already up to date, skipping."
@@ -146,6 +155,7 @@ fi
 # 3. Update and Build Nitro-V3
 # ----------------------------------------
 echo "--> Updating Nitro-V3..."
+[ -d "$NITRO_CLIENT" ] || { echo "=== ❌ Directory not found: $NITRO_CLIENT ==="; exit 1; }
 cd "$NITRO_CLIENT"
 
 git stash --include-untracked || true
@@ -155,6 +165,8 @@ git pull
 
 if [ "$(git rev-parse HEAD)" != "$OLD_HEAD" ]; then
     echo "--> New commits detected, building Nitro-V3..."
+    HAD_UPDATES=true
+    NITRO_BUILT=true
     yarn install --frozen-lockfile || { echo "--> Retrying with clean node_modules..."; clean_node_modules && yarn install; }
     yarn build
 else
@@ -273,16 +285,20 @@ find "$EMULATOR_DIR" -name "*.log" -mtime +14 -exec rm -f {} \; 2>/dev/null || t
 # 2. Keep max 5 newest database backups, delete older ones
 echo "--> Managing update backups (keeping max 5)..."
 if [ -d "$BACKUP_DIR" ]; then
-    ls -t "$BACKUP_DIR"/*.sql 2>/dev/null | tail -n +6 | xargs -r rm -f || true
+    find "$BACKUP_DIR" -maxdepth 1 -name '*.sql' -printf '%T@ %p\n' 2>/dev/null | sort -rn | tail -n +6 | sed 's/^[0-9.]* //' | xargs -r rm -f || true
 fi
 
-# 3. Clean Yarn cache to save SSD space
+# 3. Clean Yarn cache to save SSD space (only if yarn was used)
+if [ "$HAD_UPDATES" = true ]; then
     echo "--> Cleaning Yarn cache..."
     yarn cache clean 2>/dev/null || true
+fi
 
-# 4. Remove old .jar files, keeping only the newest one
+# 4. Remove old .jar files, keeping only the newest one (only if emulator was rebuilt)
+if [ "$HAD_UPDATES" = true ]; then
     echo "--> Cleaning up old emulator .jar files (keeping the latest)..."
-ls -t "$EMULATOR_DIR/Emulator/target"/Habbo-*-jar-with-dependencies.jar 2>/dev/null | tail -n +2 | xargs -r rm -f || true
+    find "$EMULATOR_DIR/Emulator/target" -maxdepth 1 -name 'Habbo-*-jar-with-dependencies.jar' -printf '%T@ %p\n' 2>/dev/null | sort -rn | tail -n +2 | sed 's/^[0-9.]* //' | xargs -r rm -f || true
+fi
 
 
 # ----------------------------------------
@@ -302,9 +318,9 @@ fi
 
 
 # ----------------------------------------
-# 7. Restart the Service
+# 7. Restart the Service (only if updates were applied)
 # ----------------------------------------
-if systemctl cat "$EMULATOR_SERVICE" &>/dev/null; then
+if [ "$HAD_UPDATES" = true ] && systemctl cat "$EMULATOR_SERVICE" &>/dev/null; then
     echo "--> Restarting $EMULATOR_SERVICE service..."
     if command -v sudo &> /dev/null; then
         sudo systemctl restart "$EMULATOR_SERVICE"
@@ -326,12 +342,16 @@ echo "--> Running extra validation..."
 ERRORS=0
 
 # Check build output exists
+if [ "$NITRO_BUILT" = true ]; then
     if [ -d "$NITRO_CLIENT/dist/assets" ]; then
         echo "--> [OK] Nitro-V3 build assets found"
     else
         echo "--> [FAIL] Nitro-V3 build assets missing!"
         ERRORS=$((ERRORS + 1))
     fi
+else
+    echo "--> [SKIP] Nitro-V3 was not rebuilt (no new commits), skipping build check"
+fi
 
 # Check permissions on key files
 for dir in "$NITRO_CLIENT" "$NITRO_RENDERER" "$EMULATOR_DIR" "$GAMEDATA_CONF_DIR"; do