[jira] [Commented] (ARCHETYPE-487) Input validation for required properties defined in artifact descriptor

["ASF GitHub Bot (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/ARCHETYPE-487?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15308648#comment-15308648 ] 

ASF GitHub Bot commented on ARCHETYPE-487:
------------------------------------------

Github user stain commented on the pull request:

    https://github.com/apache/maven-archetype/pull/7
  
    Hi, @mryan43, have you had a chance to review @michael-o's comments on this PR?


> Input validation for required properties defined in artifact descriptor
> -----------------------------------------------------------------------
>
>                 Key: ARCHETYPE-487
>                 URL: https://issues.apache.org/jira/browse/ARCHETYPE-487
>             Project: Maven Archetype
>          Issue Type: New Feature
>          Components: Archetypes, Generator, Plugin
>            Reporter: Manuel Ryan
>            Priority: Minor
>
> Add the possibility to define validation regular expressions for required properties in artifact descriptors.
> Use the regular expressions to validate user input (and ask the user to try again if the expression doesn't match)
> here's an example of a property that is required by the archetype to be only lower case alphabet characters:
> --- in archetype-metadata.xml :
> <requiredProperty key="username">
>     <validationRegex>^[a-z]*$</validationRegex>
> </requiredProperty>
> --- at prompt :
> Define value for property 'username' (should match expression '^[a-z]*$'): John
> Value does not match the expression, please try again: john
> Define value for property...



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