Reference relative install paths to support NixOS

lug-helper.sh

@@ -152,8 +152,8 @@ shaders_subdir="shaders"
 
 # Use logo installed by a packaged version of this script if available
 # Otherwise, default to the logo in the same directory
-if [ -f "/usr/share/pixmaps/lug-logo.png" ]; then
-    lug_logo="/usr/share/pixmaps/lug-logo.png"
+if [ -f "$(dirname "$helper_dir")/share/pixmaps/lug-logo.png" ]; then
+    lug_logo="$(dirname "$helper_dir")/share/pixmaps/lug-logo.png"
 elif [ -f "$helper_dir/lug-logo.png" ]; then
     lug_logo="$helper_dir/lug-logo.png"
 else
@@ -162,8 +162,8 @@ fi
 
 # Use Lutris install script installed by a packaged version of this script if available
 # Otherwise, default to the json in the same directory
-if [ -f "/usr/share/lug-helper/lutris-sc-install.json" ]; then
-    install_script="/usr/share/lug-helper/lutris-sc-install.json"
+if [ -f "$(dirname "$helper_dir")/share/lug-helper/lutris-sc-install.json" ]; then
+    install_script="$(dirname "$helper_dir")/share/lug-helper/lutris-sc-install.json"
 else
     install_script="$helper_dir/lutris-sc-install.json"
 fi
@@ -2331,6 +2331,15 @@ eac_workaround() {
     fi
 }
 
+# Format some URLs for Zenity
+format_urls() {
+    if [ "$use_zenity" -eq 1 ]; then
+        releases_url="<a href='$releases_url'>$releases_url</a>"
+        lug_wiki="<a href='$lug_wiki'>$lug_wiki</a>"
+        lug_wiki_nixos="<a href='$lug_wiki_nixos'>$lug_wiki_nixos</a>"
+    fi
+}
+
 # Get a random Penguin's Star Citizen referral code
 referral_randomizer() {
     # Populate the referral codes array
@@ -2378,11 +2387,9 @@ fi
 # Set defaults
 live_or_ptu="$live_dir"
 
-# Format some URLs for Zenity
-if [ "$use_zenity" -eq 1 ]; then
-    releases_url="<a href='$releases_url'>$releases_url</a>"
-    lug_wiki="<a href='$lug_wiki'>$lug_wiki</a>"
-    lug_wiki_nixos="<a href='$lug_wiki_nixos'>$lug_wiki_nixos</a>"
+# Format some URLs for Zenity if the Helper was not invoked with command-line arguments (handle those separately below)
+if [ "$#" -eq 0 ]; then
+    format_urls
 fi
 
 # Check if a newer verison of the script is available
@@ -2413,7 +2420,7 @@ Usage: lug-helper <options>
   -s, --delete-shaders      Delete Star Citizen shaders
   -c, --delete-dxvk-cache   Delete Star Citizen dxvk cache file
   -t, --target=[live|ptu]   Target LIVE or PTU (default live)
-  -g, --use-gui=[yes|no]    Use Zenity GUI if available (default yes)
+  -g, --no-gui              Use terminal menus instead of a Zenity GUI
   -r, --get-referral        Get a random LUG member's Star Citizen referral code
   -d, --show-directories    Show all Star Citizen and LUG Helper directories
   -w, --show-wiki           Show the LUG Wiki
@@ -2457,20 +2464,10 @@ Usage: lug-helper <options>
                     exit 0
                 fi
                 ;;
-            --use-gui=* | -g=* )
+            --no-gui | -g )
                 # If zenity is unavailable, it has already been set to 0
                 # and this setting has no effect
-                if [ -x "$(command -v zenity)" ]; then
-                    use_zenity="$(echo "$1" | cut -d'=' -f2)"
-                    if [ "$use_zenity" = "yes" ] || [ "$use_zenity" = "YES" ] || [ "$use_zenity" = "1" ]; then
-                        use_zenity=1
-                    elif [ "$use_zenity" = "no" ] || [ "$use_zenity" = "NO" ] || [ "$use_zenity" = "0" ]; then
                 use_zenity=0
-                    else
-                        printf "$0: Invalid option '%s'\n" "$1"
-                        exit 0
-                    fi
-                fi
                 ;;
             --get-referral | -r )
                 cargs+=("referral_randomizer")
@@ -2497,6 +2494,9 @@ Usage: lug-helper <options>
         shift
     done
 
+    # Format some URLs for Zenity
+    format_urls
+
     # Call the requested functions and exit
     if [ "${#cargs[@]}" -gt 0 ]; then
         for (( x=0; x<"${#cargs[@]}"; x++ )); do