translator.py: add --help

techtonik · techtonik · commit fbd5a5d71fd5 · 2014-06-25T10:39:39.000+03:00
diff --git a/pythonjs/translator.py b/pythonjs/translator.py
@@ -8,6 +8,10 @@
 from pythonjs_to_lua import main as pythonjs_to_lua
 from pythonjs_to_luajs import main as pythonjs_to_luajs
 
+cmdhelp = """\
+usage: translator.py [--dart|--coffee|--lua] file.py
+       translator.py --visjs file.py\
+"""
 
 def main(script):
     if '--visjs' in sys.argv:
@@ -50,6 +54,10 @@ def main(script):
         return code
 
 def command():
+    if '-h' in sys.argv or '--help' in sys.argv:
+        print(cmdhelp)
+        return
+
     scripts = []
     if len(sys.argv) > 1:
         for arg in sys.argv[1:]:
