Bring xdg-utils up to date with upstream repository.

scripts/xdg-mime

 #!/bin/sh
 #---------------------------------------------
 #   xdg-mime
 #
 #   Utility script to manipulate MIME related information
 #   on XDG compliant systems.
 #
 #   Refer to the usage() function below for usage.
 #
 #   Copyright 2009-2010, Fathi Boudra <fabo@freedesktop.org>
@@ skipping 469 matching lines @@
 
 #--------------------------------------
 # Checks for known desktop environments
 # set variable DE to the desktop environments name, lowercase
 
 detectDE()
 {
     # see https://bugs.freedesktop.org/show_bug.cgi?id=34164
     unset GREP_OPTIONS
 
-    if [ x"$KDE_FULL_SESSION" = x"true" ]; then DE=kde;
-    elif [ x"$GNOME_DESKTOP_SESSION_ID" != x"" ]; then DE=gnome;
-    elif `dbus-send --print-reply --dest=org.freedesktop.DBus /org/freedesktop/DBus org.freedesktop.DBus.GetNameOwner string:org.gnome.SessionManager > /dev/null 2>&1` ; then DE=gnome;
-    elif xprop -root _DT_SAVE_MODE 2> /dev/null | grep ' = \"xfce4\"$' >/dev/null 2>&1; then DE=xfce;
-    elif xprop -root 2> /dev/null | grep -i '^xfce_desktop_window' >/dev/null 2>&1; then DE=xfce
+    if [ -n "${XDG_CURRENT_DESKTOP}" ]; then
+      case "${XDG_CURRENT_DESKTOP}" in
+         GNOME)
+           DE=gnome;
+           ;;
+         KDE)
+           DE=kde;
+           ;;
+         LXDE)
+           DE=lxde;
+           ;;
+         XFCE)
+           DE=xfce
+      esac
+    fi
+
+    if [ x"$DE" = x"" ]; then
+      # classic fallbacks
+      if [ x"$KDE_FULL_SESSION" = x"true" ]; then DE=kde;
+      elif [ x"$GNOME_DESKTOP_SESSION_ID" != x"" ]; then DE=gnome;
+      elif `dbus-send --print-reply --dest=org.freedesktop.DBus /org/freedesktop/DBus org.freedesktop.DBus.GetNameOwner string:org.gnome.SessionManager > /dev/null 2>&1` ; then DE=gnome;
+      elif xprop -root _DT_SAVE_MODE 2> /dev/null | grep ' = \"xfce4\"$' >/dev/null 2>&1; then DE=xfce;
+      elif xprop -root 2> /dev/null | grep -i '^xfce_desktop_window' >/dev/null 2>&1; then DE=xfce
+      fi
     fi
 
     if [ x"$DE" = x"" ]; then
       # fallback to checking $DESKTOP_SESSION
       case "$DESKTOP_SESSION" in
          gnome)
            DE=gnome;
            ;;
          LXDE)
            DE=lxde; 
@@ skipping 97 matching lines @@
         exit_failure_operation_failed
     fi
 }
 
 info_generic()
 {
     if mimetype --version >/dev/null 2>&1; then
         DEBUG 1 "Running mimetype -b \"$1\""
         mimetype -b "$1"
     else
-        DEBUG 1 "Running file -i \"$1\""
-        /usr/bin/file -i "$1" 2> /dev/null | cut -d ":" -f 2 | sed s/"^ "//
+        DEBUG 1 "Running file --mime-type \"$1\""
+        /usr/bin/file --mime-type "$1" 2> /dev/null | cut -d ":" -f 2 | sed s/"^ "//
     fi
 
     if [ $? -eq 0 ]; then
         exit_success
     else
         exit_failure_operation_failed
     fi
 }
 
 make_default_kde()
@@ skipping 750 matching lines @@
                 rm -f $kde_dir/$x.desktop
             fi
         done
         ;;
 esac
 
 update_mime_database $xdg_base_dir
 
 exit_success