awesome-client: allow to send multi line code

Signed-off-by: Julien Danjou <julien@danjou.info>

utils/awesome-client

@@ -1,9 +1,14 @@
 #!/bin/sh
 
-# rlwrap provides readline to stuff which doesn't know readline by itself
-RLWRAP=$(which rlwrap 2>/dev/null)
 READ_OPTIONS="-r"
 
+tty 2>&1 > /dev/null
+ISATTY=$?
+
+if [ "$ISATTY" = 0 ]
+then
+    # rlwrap provides readline to stuff which doesn't know readline by itself
+    RLWRAP=$(which rlwrap 2>/dev/null)
     if [ "$RLWRAP" != "" ]
     then
         if [ "$A_RERUN" = "" ]
@@ -21,6 +26,7 @@ if [ $BASH ]
     then
         READ_OPTIONS="$READ_OPTIONS -p awesome# "
     fi
+fi
 
 DBUS_SEND=dbus-send
 
@@ -41,7 +47,12 @@ a_dbus_send()
         $DBUS_METHOD string:"$1" | tail -n +2
 }
 
+if [ "$ISATTY" = 0 ]
+then
     while read ${READ_OPTIONS} line
     do
         a_dbus_send "$line"
     done
+else
+    a_dbus_send "`cat`"
+fi