Better error message for running szbuild.py out of directory.

pydir/utils.py

Index: pydir/utils.py
diff --git a/pydir/utils.py b/pydir/utils.py
index 6fdedfafae03f4d1968e303661a9107c699fe818..d7997014acef7ce2c66f2d07ef31b167c2d77c2e 100644
--- a/pydir/utils.py
+++ b/pydir/utils.py
@@ -17,7 +17,8 @@ def FindBaseNaCl():
     nacl = 'native_client'
     path_list = os.getcwd().split(os.sep)

[Jim Stichnoth, 2016/01/10 00:52:55]

Another thought is to add a line like:

  path_list = path_list if nacl in path_list else sys.argv[0].split(os.sep)

so that it also checks argv[0] before failing.

[Sean Klein, 2016/01/11 18:29:44]

Done.

     if nacl not in path_list:
-        return None
+        print "Script must be executed from within 'native_client' directory"
+        exit(1)
     last_index = len(path_list) - path_list[::-1].index(nacl)
     return os.sep.join(path_list[:last_index])