add hanamgr option to copy schemas

hanamgr.sh

@@ -1,5 +1,5 @@
 #!/bin/bash
-# Version: 1.3.1
+# Version: 1.4.0
 # Author: Tomi Eckert
 # ==============================================================================
 # HANA Database Manager Menu (hanamgr.sh)
@@ -286,6 +286,69 @@ do_drop() {
     fi
 }
 
+do_copy() {
+    echo -e "\n\033[1m=== Copy Schema ===\033[0m"
+    select_schema "$GLOBAL_USER_KEY"
+    local source_schema="$SELECTED_SCHEMA"
+    
+    if [[ -z "$source_schema" ]]; then
+        echo -e "\033[31m[❌] Error: Source Schema is required.\033[0m"
+        return
+    fi
+    
+    read -p "Enter Target Schema Name: " target_schema
+    read -p "Enter Temporary Export Directory Path: " export_path
+    
+    local max_threads=$(nproc --all 2>/dev/null || echo 1)
+    local half_threads=$((max_threads / 2))
+    [[ $half_threads -lt 1 ]] && half_threads=1
+    
+    read -p "Number of threads (default: $half_threads, max: $max_threads): " threads
+    threads=${threads:-$half_threads}
+    
+    read -p "Replace existing objects in target schema? (y/N): " replace_opt
+
+    if [[ -z "$GLOBAL_USER_KEY" || -z "$target_schema" || -z "$export_path" ]]; then
+        echo -e "\033[31m[❌] Error: Key, Target Schema, and Path are required.\033[0m"
+        return
+    fi
+
+    # 1. Export
+    echo -e "\n[⬇️] Step 1/2: Exporting source schema '${source_schema}' to '${export_path}'..."
+    mkdir -p "$export_path"
+    local temp_export_dir=$(mktemp -d "${export_path}/copy_export_${source_schema}_XXXXXXXX")
+    echo "[ℹ️] Using temporary export directory: ${temp_export_dir}"
+    
+    local export_query="EXPORT \"${source_schema}\".\"*\" AS BINARY INTO '${temp_export_dir}' WITH REPLACE THREADS ${threads} NO DEPENDENCIES;"
+    
+    if ! execute_sql "$GLOBAL_USER_KEY" "$export_query"; then
+        echo -e "\033[31m[❌] Error: Export phase failed. Aborting copy.\033[0m"
+        rm -rf "$temp_export_dir"
+        return
+    fi
+    echo -e "\033[32m[✅] Export phase completed successfully.\033[0m"
+
+    # 2. Import-Rename
+    echo -e "\n[⬆️] Step 2/2: Importing and renaming to '${target_schema}'..."
+    local import_options="IGNORE EXISTING"
+    if [[ "$replace_opt" =~ ^[Yy]$ ]]; then
+        import_options="REPLACE"
+    fi
+    import_options="${import_options} RENAME SCHEMA \"${source_schema}\" TO \"${target_schema}\""
+    
+    local import_query="IMPORT \"${source_schema}\".\"*\" AS BINARY FROM '${temp_export_dir}' WITH ${import_options} THREADS ${threads};"
+    
+    if execute_sql "$GLOBAL_USER_KEY" "$import_query"; then
+        echo -e "\033[32m[✅] Successfully copied schema '${source_schema}' to '${target_schema}'.\033[0m"
+    else
+        echo -e "\033[31m[❌] Error: Import phase failed.\033[0m"
+    fi
+
+    # Cleanup
+    echo "[🧹] Cleaning up temporary files..."
+    rm -rf "$temp_export_dir"
+}
+
 do_rename_db() {
     echo -e "\n\033[1m=== Rename Database (Company Name) ===\033[0m"
     select_schema "$GLOBAL_USER_KEY"
@@ -334,11 +397,12 @@ while true; do
     echo "1) Export Schema"
     echo "2) Import Schema"
     echo "3) Import-Rename Schema"
-    echo "4) Drop Schema"
-    echo "5) Rename Database (Update Company Name)"
-    echo "6) Quit"
+    echo "4) Copy Schema"
+    echo "5) Drop Schema"
+    echo "6) Rename Database (Update Company Name)"
+    echo "7) Quit"
     echo
-    read -p "Please select an option (1-6): " choice
+    read -p "Please select an option (1-7): " choice
     
     case $choice in
         1)
@@ -351,12 +415,15 @@ while true; do
             do_import "true"
             ;;
         4)
-            do_drop
+            do_copy
             ;;
         5)
-            do_rename_db
+            do_drop
             ;;
         6)
+            do_rename_db
+            ;;
+        7)
             echo "[👋] Exiting."
             exit 0
             ;;