Updated lab installer

Author: ziflex

install.sh

@@ -39,11 +39,23 @@ validate_input() {
   local location="$1"
   local version="$2"
 
-  if [ -z "$location" ] || [ ! -d "$location" ]; then
+  if [ -z "$location" ]; then
     report "Invalid location: $location"
     exit 1
   fi
 
+  # Check if location exists
+  if [ ! -d "$location" ]; then
+    report "Location does not exist: $location"
+    exit 1
+  fi
+
+  # Check if location is writable
+  if [ ! -w "$location" ]; then
+    report "Location is not writable: $location"
+    exit 1
+  fi
+
   if [ "$version" != "latest" ] && [[ ! "$version" =~ [0-9]+\.[0-9]+\.[0-9]+$ ]]; then
     report "Invalid version: $version"
     exit 1
@@ -196,8 +208,6 @@ install() {
 
   local downloaded_file="${download_dir}/${binName}"
 
-  mkdir -p "${location}"
-
   report "Copying ${downloaded_file} to ${location}"
 
   cp "${downloaded_file}" "${location}"