Repository info for a stack can contain any number of repo definitions. For HDP, there are two repos used (HDP and HDP-UTILS). When checking repositories for duplicate URL, the code does this:
We should make the unique declaration directly for the repository so authors don't have to guess. This entails:
- Change repoinfo.xml to support a <unique> element within <repo>
- <unique> should apply to, say, versions of HDP that change with each release. Absence of said element implies false for backward compatibility.
- Change RepositoryVersionResourceProvider.validateRepositoryVersion(...) to use this boolean for uniqueness check.
- Update the version_definition.xsd to include this new element.