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https://issues.apache.org/jira/browse/DAFFODIL-2477?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17342720#comment-17342720
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John Interrante commented on DAFFODIL-2477:
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I tested daffodil 2.5.0's behavior with -V and confirmed it requires the mode
as well, so I agree let's document the mode as mandatory and if someone wants
to make it optional, they still can do that later.
> --validate option requires parameter
> ------------------------------------
>
> Key: DAFFODIL-2477
> URL: https://issues.apache.org/jira/browse/DAFFODIL-2477
> Project: Daffodil
> Issue Type: Bug
> Components: CLI
> Affects Versions: 3.0.0
> Reporter: Steve Lawrence
> Priority: Minor
> Labels: beginner
>
> The CLI --validate flag allows an optional "mode" argument to specify whether
> to have full, limited, or no validation. If mode is not specified, it
> defaults to no validation.
> As of Daffodil 3.0.0, this appears to be broken and the mode parameter is
> required. If you do not specify a mode, you get the error:
> {code:java}
> [error] Bad arguments for option 'validate': '' - you should provide exactly
> one argument for this option{code}
> We need to fix this to make it optional again, or if that isn't possible for
> some reason, make it so the documentation is changed to make it clear that
> mode is a required argument.
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