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Description
The _is_incomplete_option function in the Click library has a logic issue in its loop that sets the last_option variable. The function does not break the loop after assigning last_option, which leads to wrong shell completion.
Replication:
See https://github.com/msaipraneeth/click-tuple-param
RCA:
We can reproduce issue If we have flag option before tuple option
Environment:
- Python version: 3.11
- Click version: 8.1.7
Possible solution :
Once we identify the last option we have the break the loop in _is_incomplete_option function
def _is_incomplete_option(ctx: Context, args: t.List[str], param: Parameter) -> bool:
"""Determine if the given parameter is an option that needs a value.
:param args: List of complete args before the incomplete value.
:param param: Option object being checked.
"""
if not isinstance(param, Option):
return False
if param.is_flag or param.count:
return False
last_option = None
for index, arg in enumerate(reversed(args)):
if index + 1 > param.nargs:
break
if _start_of_option(ctx, arg):
last_option = arg
break # <-------------------------------------------------- break the loop on finding the option
return last_option is not None and last_option in param.optsMetadata
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