babel_diff in babel_diff-1.1.0

- old
+ new

@@ -1,4 +1,27 @@
 #!/usr/bin/env ruby
 require 'babel_diff'
 
-BabelDiff.run
+help = <<-HELP
+usages: 
+
+babel_import <import_dir> <phrase_dir> [defaults to 'config/locales/']
+
+Imports all phrase files in the <import_dir> and merges them with the phrase files in <phrase_dir>.
+Existing keys will be overwritten.
+
+babel_diff <phrase_file_path> [defaults to 'config/locales/phrase.en.yml']
+
+Produces two files containing all updates and all additions to the given phrase file located at <phrase_file_path> since babel_diff last ran.
+
+HELP
+
+case ARGV.first
+when "--help"
+  puts help
+  exit 0
+when nil
+  BabelDiff.generate_diffs
+else
+  BabelDiff.generate_diffs(ARGV[0])
+end
+