individual zsh configuration

zsh/config_starship.sh

@@ -1,5 +1,22 @@
 #! /bin/bash
 
-current_dir=$(dirname "$0")
+current_dir=$(dirname $(realpath "$0"))
+starship_config_file="$HOME/.config/starship.toml"
 
-cp "$current_dir/../starship/starship.toml" "$HOME/.config/"
+if [[ $(file $starship_config_file) ]]; then
+    if $(file "$starship_config_file" | grep -q "symbolic link") ; then
+        if [[ $(readlink "$starship_config_file") != $(realpath "$current_dir/../starship/starship.toml") ]]; then
+            ln -sf "$current_dir/../starship/starship.toml" "$starship_config_file"
+        fi
+    else
+        if [ ! -f "$starship_config_file.bkp" ]; then
+            mv "$starship_config_file" "$starship_config_file.bkp"
+            ln -s "$current_dir/../starship/starship.toml" "$starship_config_file"
+        else
+            echo "Backup file already exists. Please remove $starship_config_file.bkp and try again."
+            exit 1
+        fi
+    fi
+else
+    ln -sf "$current_dir/../starship/starship.toml" "$starship_config_file"
+fi