Fix xdg-settings to work around bugs in xdg-mime and kdeinit.

third_party/xdg-utils/scripts/xdg-settings.in

 #!/bin/sh
 #---------------------------------------------
 #   xdg-settings
 #
 #   Utility script to get various settings from the desktop environment.
 #
 #   Refer to the usage() function below for usage.
 #
 #   Copyright 2009, Google Inc.
 #
@@ skipping 64 matching lines @@
     if [ $oldlines -le $newlines ]; then
         mv "$temp" "$apps/$1"
         # This can take a little bit to get noticed
         sleep 4
     else
         rm -f "$temp"
         return 1
     fi
 }
 
+xdg_mime_fixup()
+{
+    # xdg-mime may use ktradertest, which will fork off a copy of kdeinit if
+    # one does not already exist. It will exit after about 15 seconds if no
+    # further processes need it around. But since it does not close its stdout,
+    # the shell (via grep) will wait around for kdeinit to exit. If we start a
+    # copy here, that copy will be used in xdg-mime and we will avoid waiting.
+    if [ "$DE" = kde -a -z "$XDG_MIME_FIXED" ]; then
+        ktradertest text/html Application > /dev/null 2>&1
+        # Only do this once, as we only need it once.
+        XDG_MIME_FIXED=yes
+    fi
+}
+
 get_browser_mime()
 {
+    xdg_mime_fixup
     xdg-mime query default text/html
 }
 
 set_browser_mime()
 {
+    xdg_mime_fixup
     orig="`get_browser_mime`"
     # Fixing the local desktop file can actually change the default browser all
     # by itself, so we fix it only after querying to find the current default
     fix_local_desktop_file "$1" || return
     mkdir -p "${XDG_DATA_HOME:-$HOME/.local/share}/applications"
     xdg-mime default "$1" text/html || return
     if [ x"`get_browser_mime`" != x"$1" ]; then
         # Put back the original value
         xdg-mime default "$orig" text/html
         exit_failure_operation_failed
@@ skipping 368 matching lines @@
     ;;
 
     generic)
     dispatch_generic "$@"
     ;;
 
     *)
     exit_failure_operation_impossible "unknown desktop environment"
     ;;
 esac