bin/tracksperanto in tracksperanto-1.6.4 vs bin/tracksperanto in tracksperanto-1.6.5

@@ -24,29 +24,25 @@
 slip = 0
 golden_tracks = false
 x_shift = 0
 y_shift = 0
 set_prefix = ''
-
+sole_format = nil
+reader_name = "ShakeScript"
 readers = Tracksperanto.importer_names
+writers = Tracksperanto.exporter_names
 
 parser = OptionParser.new do | p |
  p.banner = "Usage: tracksperanto -f ShakeScript -w 1920 -h 1080 /Films/Blockbuster/Shots/001/script.shk"
  p.on("--code PATH_TO_SCRIPT", String, "Load custom Ruby code into tracksperanto") {|c| 
     require c
  }
  p.on(" -f", "--from TRANSLATOR", String, 
    "Use the specific import translator (will try to autodetect, but can be #{Tracksperanto.importer_names.join(', ')})") do | f |
-   begin
-     reader_klass = Tracksperanto::Import.const_get(f)
-   rescue NameError => e
-     reader_list = readers.join("\n\t")
-     STDERR.puts "Unknown reader #{f.inspect}, available readers:\n\t#{readers.join(', ')}"
-     exit(-1)
-    end
+    reader_name = f
  end
- p.on(" -p", "--prefix PREFIX", String, "A prefix to prepend to tracker names in bluk") { |w| set_prefix = w }
+ p.on(" -p", "--prefix PREFIX", String, "A prefix to prepend to tracker names in bulk") { |w| set_prefix = w }
  p.on(" -w", "--width WIDTH_IN_PIXELS", Integer, "Absolute input comp width in pixels (will try to autodetect)") { |w| width = w }
  p.on(" -h", "--height HEIGHT_IN_PIXELS", Integer, "Absolute input comp height in pixels (will try to autodetect)") {|w| height = w }
  p.on(" -xs", "--xscale X_SCALING_FACTOR", Float, "Scale the result in X by this factor (1.0 is the default)") {|sx| scale_x = sx }
  p.on(" -ys", "--yscale Y_SCALING_FACTOR", Float, "Scale the result in Y by this factor (1.0 is the default)") {|sy| scale_y = sy }
  p.on(" -s", "--slip FRAMES", Integer, "Slip the result by this number of frames, positive is 'later'") {|sy| slip = sy }
@@ -57,10 +53,13 @@
     reformat_w = rw
  }
  p.on(" -ry", "--reformat-y NEW_PIX_HEIGHT", Integer, "Reformat the comp to this height and scale all tracks to it") {|rh|
     reformat_h = rh
  }
+ p.on(" -o", "--only EXPORTER_NAME", String, "Only export the selected format, format must be one of #{writers.join(", ")}") {|f|
+     sole_format = f
+ }
  p.on(" -xm", "--xshift X_IN_PIXELS", Float, "Move the points left or right") {|sx| x_shift = sx }
  p.on(" -ym", "--yshift Y_IN_PIXELS", Float, "Move the points up or down") {|sx| y_shift = sx }
  p.on("--version", "Show the version and exit") {|v| 
     puts "#{Tracksperanto::VERSION} running on Ruby #{RUBY_VERSION} on #{RUBY_PLATFORM}"
     exit(0)
@@ -73,18 +72,34 @@
   STDERR.puts "Unknown argument: #{e.message}"
   puts parser
   exit(-1)
 end
 
+begin
+  reader_klass = Tracksperanto::Import.const_get(reader_name)
+rescue NameError => e
+  STDERR.puts "Unknown reader #{reader_name}, available readers: #{readers.join(', ')}"
+  exit(-1)
+end
+
 input_file = ARGV.pop
 if !input_file
   STDERR.puts "No input file provided - should be the last argument"
   puts parser
   exit(-1)
 end
 
 pipe = Tracksperanto::Pipeline::Base.new
 pipe.progress_block = lambda{|percent, msg| STDOUT.write(".") }
+if sole_format
+  begin
+    pipe.exporters = [Tracksperanto::Export.const_get(sole_format)]
+  rescue NameError
+    STDERR.puts "Unknown exporter #{sole_format}. Available exporters: #{writers.join(", ")}"
+    exit(-1)
+  end
+end
+
 pipe.run(input_file, :pix_w => width, :pix_h => height, :parser => reader_klass) do | scaler, slipper, golden, reformat, shift, prefix |
   slipper.slip = slip
   scaler.x_factor = scale_x
   scaler.y_factor = scale_y
   golden.enabled = golden_tracks
\ No newline at end of file