Updating to use the latest System.CommandLine #343
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| description: "The base path for files to parse.", | ||
| argumentType: typeof(string), | ||
| getDefaultValue: () => string.Empty, | ||
| arity: ArgumentArity.ExactlyOne |
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What, if anything, controls the arity allowed now and therefore errors if more than one --file-directory is specified?
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This is now defaulted based on the generic type of the option (which is forwarded to the option's argument).
It can be overridden by specifying a specific value for the Arity property, however it appeared that the options here were all following the defaults.
You can see the default Arity for different types here: https://github.com/dotnet/command-line-api/blob/main/src/System.CommandLine/ArgumentArity.cs#L144-L168
tannergooding
approved these changes
Apr 29, 2022
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I tried to keep the structure similar to what was there previously.
Some notable differences.
CommandLineBuilderdirectly because callingCommand.Invokewith and option that matched the--versioncaused an error with a duplicate symbol.[]where before it was[default: ]HelpContextI believe this API could be improved in System.CommandLine to make this easier.