openstack
/
rally
Code Issues Proposed changes

Show Missing Argument Error raised by Argparse 

Fix rally to display Missing Argument error raised by argparse
during parsing of cli arguments. Refer to bug for more
description.

Change-Id: I0d092349dacc66d3baefa327cbf5a5cbf227e9ee
Closes-Bug: #1562916
This commit is contained in:
Piyush Raman Srivastava 2016-03-28 22:25:11 +05:30
parent a71db86829
commit 9752bf0d28
1 changed files with 7 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

7
rally/cli/cliutils.py
View File

@ -284,6 +284,13 @@ class CategoryParser(argparse.ArgumentParser):
def error(self, message):
self.print_help(sys.stderr)
if message.startswith("argument") and message.endswith("is required"):
# NOTE(pirsriva) Argparse will currently raise an error
# message for only 1 missing argument at a time i.e. in the
# error message it WILL NOT LIST ALL the missing arguments
# at once INSTEAD only 1 missing argument at a time
missing_arg = message.split()[1]
print(_("Missing argument:\n%s") % missing_arg)
sys.exit(2)