servicemix-archetype-catalog/src/main/resources/filter.xsl

<?xml version="1.0" encoding="utf-8"?>
<!--

    Licensed to the Apache Software Foundation (ASF) under one or more
    contributor license agreements.  See the NOTICE file distributed with
    this work for additional information regarding copyright ownership.
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    (the "License"); you may not use this file except in compliance with
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<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
                version="1.0">

  <xsl:strip-space elements="*"/>
  <xsl:param name="version"/>

  <xsl:template match="archetype[version != '@{components-version}']">
    <!-- simply drop archetypes for other versions of ServiceMix -->
  </xsl:template>

  <xsl:template match="archetypes">
     <archetypes>
       <xsl:apply-templates select="archetype">
         <xsl:sort select="artifactId"/>
       </xsl:apply-templates>
     </archetypes>
  </xsl:template>

  <xsl:template match="@*|node()">
    <xsl:copy>
      <xsl:apply-templates select="@*|node()"/>
    </xsl:copy>
  </xsl:template>

</xsl:stylesheet>