bin/tracksperanto in tracksperanto-1.6.8 vs bin/tracksperanto in tracksperanto-1.6.9

@@ -86,12 +86,29 @@
   STDERR.puts "No input file provided - should be the last argument"
   puts parser
   exit(-1)
 end
 
+class Spinner
+  RING = ['|', '/', '-', '\\', '|', '/', '-', '\\']
+  
+  def initialize
+    @counter = 0
+    @last_message_length = 0
+  end
+  
+  def spin(percent, msg)
+    current = RING[(@counter += 1) % RING.length]
+    output = " [%s %d%%]" % [current, percent]
+    STDOUT.write(output + "\r" * output.length)
+    STDOUT.flush
+  end
+end
+
 pipe = Tracksperanto::Pipeline::Base.new
-pipe.progress_block = lambda{|percent, msg| STDOUT.write(".") }
+pipe.progress_block = Spinner.new.method(:spin).to_proc
+
 if sole_format
   begin
     pipe.exporters = [Tracksperanto::Export.const_get(sole_format)]
   rescue NameError
     STDERR.puts "Unknown exporter #{sole_format}. Available exporters: #{writers.join(", ")}"
@@ -108,6 +125,6 @@
   reformat.height = reformat_h if reformat_h
   shift.x_shift = x_shift
   shift.y_shift = y_shift
   prefix.prefix = set_prefix
 end
-STDOUT.write("\n")
+STDOUT.puts("\rConverted #{pipe.converted_points} trackers with #{pipe.converted_keyframes} keys")
\ No newline at end of file