accept boolean arg pairs like "--arg-name true" #67
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This PR allows CLI arguments like
--idle-timeout-enabled falseto work as expected. This format currently causes unexpected results for users, because the value must be in--arg=valueformat, otherwise the supplied boolean flag is resolved totrue.Specifically, this change scans the command tree for all boolean flags, identifies any present in the cli arguments that have a separate value arg (e.g.,
--idle-timeout-enabled false), and collapses them into single argument format (--idle-timeout-enabled=false) prior to being parsed by the Flag parser. This allows both the 2-arg and 1-arg versions of boolean flags to work identically based on the user's preference. This also enforcesstrconv.ParseBool's accepted formats (t,T,f,F,true,True,false,False,TRUE,FALSE,0,1) and reliably errors if the provided value is invalid.