shell.rb in hammer_cli-3.3.0

- old
+ new

@@ -84,11 +84,11 @@
 
       Readline.completion_append_character = ''
       Readline.completer_word_break_characters = ' ='
       Readline.completion_proc = complete_proc
 
-      stty_save = `stty -g`.chomp
+      stty_save = `stty -g`.chomp if $stdin.tty?
 
       history = ShellHistory.new(Settings.get(:ui, :history_file) || DEFAULT_HISTORY_FILE)
 
       begin
         print_welcome_message
@@ -100,10 +100,11 @@
           ShellMainCommand.run('hammer', line, context) unless line.empty?
         end
       rescue Interrupt; end
 
       puts
-      system('stty', stty_save) # Restore
+      # Restore
+      system('stty', stty_save) if $stdin.tty?
       HammerCLI::EX_OK
     end
 
     private
 