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https://issues.apache.org/jira/browse/ARCHETYPE-487?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15235305#comment-15235305
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ASF GitHub Bot commented on ARCHETYPE-487:
------------------------------------------
Github user michael-o commented on a diff in the pull request:
https://github.com/apache/maven-archetype/pull/7#discussion_r59225929
--- Diff:
maven-archetype-plugin/src/main/java/org/apache/maven/archetype/ui/ArchetypeConfiguration.java
---
@@ -19,12 +19,15 @@
* under the License.
*/
+import org.apache.maven.archetype.common.Constants;
+import org.codehaus.plexus.util.StringUtils;
--- End diff --
Unrelated change, please drop.
> 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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