Get rid of guessing the VM location in frog.py.

frog/scripts/bootstrap/frog_bootstrap_wrapper.py

Index: frog/scripts/bootstrap/frog_bootstrap_wrapper.py
===================================================================
--- frog/scripts/bootstrap/frog_bootstrap_wrapper.py	(revision 1968)
+++ frog/scripts/bootstrap/frog_bootstrap_wrapper.py	(working copy)
@@ -8,17 +8,26 @@
 HOME = os.path.dirname(os.path.realpath(__file__))
 HOME = os.path.join(HOME, os.pardir, os.pardir)
 
-sys.path.append(HOME)
-import frog
+END_SCRIPT = '''
+VM = '%s'
+if __name__ == '__main__':
+  sys.exit(main(sys.argv))
+'''
 
 def main(args):
-  js_out = args[1]
+  product_dir = args[1]
+  vm = os.path.join(product_dir, 'dart')
+  frog = os.path.join(product_dir, 'frog', 'bin', 'frog')
 
   # TODO(ngeoffray): Create a script that will run the VM in production mode.
   # if js_out.find('Release') != -1:
   shutil.copy(os.path.join(HOME, 'scripts', 'bootstrap', 'frog_wrapper.py'),
-              js_out)
-  os.chmod(js_out, stat.S_IXUSR | stat.S_IXGRP | stat.S_IRUSR |
+              frog)
+
+  with open(frog, 'a+') as f:
+    f.write(END_SCRIPT % vm)
+
+  os.chmod(frog, stat.S_IXUSR | stat.S_IXGRP | stat.S_IRUSR |
            stat.S_IRGRP | stat.S_IWUSR)
   return 0