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app: config: Mutually exclusive group for local/global/system argument 

Use builtin mutually exclusive group support instead of a custom action.

Signed-off-by: Pieter De Gendt <pieter.degendt@basalte.be>
This commit is contained in:
Pieter De Gendt 2024-11-14 14:54:40 +01:00 committed by Pieter De Gendt
parent d6b34dfa64
commit 0fbb54caa7
1 changed files with 9 additions and 21 deletions
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30
src/west/app/config.py
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@ -71,23 +71,6 @@ SYSTEM = ConfigFile.SYSTEM
GLOBAL = ConfigFile.GLOBAL
LOCAL = ConfigFile.LOCAL
class Once(argparse.Action):
# For enforcing mutual exclusion of options by ensuring self.dest
# can only be set once.
#
# This sets the 'configfile' attribute depending on the option string,
# which must be --system, --global, or --local.
def __call__(self, parser, namespace, ignored, option_string=None):
values = {'--system': SYSTEM, '--global': GLOBAL, '--local': LOCAL}
rev = {v: k for k, v in values.items()}
if getattr(namespace, self.dest):
previous = rev[getattr(namespace, self.dest)]
parser.error(f"argument {option_string}: "
f"not allowed with argument {previous}")
setattr(namespace, self.dest, values[option_string])
class Config(WestCommand):
def __init__(self):
@ -113,12 +96,17 @@ class Config(WestCommand):
help="delete an option everywhere it's set")
group = parser.add_argument_group(
'configuration file to use (give at most one)')
group.add_argument('--system', dest='configfile', nargs=0, action=Once,
"configuration file to use (give at most one)"
).add_mutually_exclusive_group()
group.add_argument('--system', dest='configfile',
action='store_const', const=SYSTEM,
help='system-wide file')
group.add_argument('--global', dest='configfile', nargs=0, action=Once,
group.add_argument('--global', dest='configfile',
action='store_const', const=GLOBAL,
help='global (user-wide) file')
group.add_argument('--local', dest='configfile', nargs=0, action=Once,
group.add_argument('--local', dest='configfile',
action='store_const', const=LOCAL,
help="this workspace's file")
parser.add_argument('name', nargs='?',