Base default paths on path rebuild script is run from

rebuild.sh

@@ -83,6 +83,18 @@ else
 fi
 
 if [ ${interactivity} == 1 ]; then
+  # Set up defaults.
+  script_path=`pwd`
+  gesso_root_default='/var/www/html'
+  if [[ "$script_path" == *"app"* ]]; then
+    drupal_root_default='/app'
+    gesso_root_default='/app'
+  elif [[ "$script_path" == *"alt"* ]]; then
+    drupal_root_default='/var/www/drupal8alt'
+  else
+    drupal_root_default='/var/www/drupal8'
+  fi
+  # Ask install questions.
   echo "What would you like to do?"
   echo "1 = Rebuild profile (non-development)."
   echo "2 = Rebuild profile and gesso (for development)."
@@ -108,22 +120,14 @@ if [ ${interactivity} == 1 ]; then
     build_type='vagrant'
   fi
 
-  if [ ${build_type} == "lando" ]; then
-    printf "\nDrupal root directory: [/app]: "
-  else
-    printf "\nDrupal root directory: [/var/www/drupal8]: "
-  fi
+  printf "\nDrupal root directory: [$drupal_root_default]: "
   read -r drupal_root_dir
 
   printf "\nGesso branch/tag: [8.x-3.x]: "
   read -r gesso_branch_tag
 
   if [ ${build_option} == "2" ] || [ ${build_option} == "3" ]; then
-    if [ ${build_type} == "lando" ]; then
-      printf "\nGesso root directory: [/app]: "
-    else
-      printf "\nGesso root directory: [/var/www/html]: "
-    fi
+    printf "\nGesso root directory: [$gesso_root_default]: "
     read -r gesso_root_dir
   fi
 
@@ -139,19 +143,11 @@ if [[ -z $gesso_branch_tag ]]; then
 fi
 
 if [[ -z $drupal_root_dir ]]; then
-  if [[ ${build_type} == "lando" ]]; then
-    drupal_root_dir=/app
-  else
-    drupal_root_dir=/var/www/drupal8
-  fi
+  drupal_root_dir="$drupal_root_default"
 fi
 
 if [[ -z $gesso_root_dir ]]; then
-  if [[ ${build_type} == "lando" ]]; then
-    gesso_root_dir=/app
-  else
-    gesso_root_dir=/var/www/html
-  fi
+  gesso_root_dir="$gesso_root_default"
 fi
 
 if [ ${build_option} == "1" ]; then