Write a utility wrapper for linux. Untested / Unfinished.

packaging/linux/OpenRA.Utility.sh

@@ -0,0 +1,24 @@
+#!/bin/bash
+# OpenRA utility wrapper for linux systems
+
+authenticate () {
+    if command -v gksudo > /dev/null; then
+        gksudo --description "OpenRA Installer" -- mono OpenRA.Utility.exe $@ || echo "Error: Permission denied."
+    elif command -v kdesu > /dev/null; then
+        kdesudo -d -- mono OpenRA.Utility.exe $@ || echo "Error: Permission denied."
+    else
+        # Try running without escalating
+        mono OpenRA.Utility.exe $@
+    fi
+}
+
+if [[ "$1" == "--display-filepicker" ]]; then
+    if command -v zenity > /dev/null ; then
+        zenity --file-selection --title $2
+    else
+        mono OpenRA.Utility.exe $@
+    fi
+else
+    # Everything else requires root running an -inner variant
+    authenticate "$1-inner" ${@:2}
+fi