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Check the value of the --color argument

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Make sure it's either `auto' (the default), `always' or `never'. If it
does not match any of the values, raise a Docopt exception that causes
it to print usage and exit.

Tested:
- $ sudo ./bootstrap-vz --color=invalid manifests/gce.manifest.yml
  Value of --color must be one of auto, always or never.
  Usage: bootstrap-vz [options] MANIFEST

Signed-off-by: Filipe Brandenburger <filbranden@google.com>
This commit is contained in:
Filipe Brandenburger 2014-08-24 10:50:07 -07:00
parent 84cf497c66
commit 1fe10207b8
1 changed files with 5 additions and 2 deletions
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7
bootstrapvz/base/main.py
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@ -34,7 +34,7 @@ def main():
def get_opts(): def get_opts():
"""Creates an argument parser and returns the arguments it has parsed """Creates an argument parser and returns the arguments it has parsed
""" """
from docopt import docopt import docopt
usage = """bootstrap-vz usage = """bootstrap-vz
Usage: bootstrap-vz [options] MANIFEST Usage: bootstrap-vz [options] MANIFEST
@ -49,7 +49,10 @@ Options:
--debug Print debugging information --debug Print debugging information
-h, --help show this help -h, --help show this help
""" """
return docopt(usage) opts = docopt.docopt(usage)
if opts['--color'] not in ('auto', 'always', 'never'):
raise docopt.DocoptExit('Value of --color must be one of auto, always or never.')
return opts
def setup_loggers(opts): def setup_loggers(opts):