Use with a liquibase plugin

[StuporHero]

I'd like to write my liquibase changelogs using this groovy-dsl, but it is not obvious whether or not it supports liquibase plugins. If it does, an example should be added to the documentation. If it does not, support should be added along with an example.

Thanks for taking a random request from a stranger.

[stevesaliman]

Short answer: maybe, depending ont the plugin, and the parts of it you need to use.

The longer answer is that I haven't played with Liquibase extensions yet, but from the documentation, it looks like anything that is in the classpath at runtime would be supported by Liquibase. So things like the Logging plugins should work fine, but plugins like the Oracle plugin, will probably have issues because it introduces new Change types.

At the current time, the Groovy DSL only supports the standard Liquibase Change Set elements, so things like the Oracle plugin, which defines new kinds of changes, would not work. Liquibase has introduced a great new way to decouple parsers from Liquibase internals (called ParsedNodes), but until https://liquibase.jira.com/browse/CORE-1968 gets fixed, I can't take advantage of it.

Once that happens, I'll stop doing any validation on my end and simply create ParsedNode objects for anything I see in a Groovy file, secure in the knowledge that any invalid element will be rejected by Liquibase if it (or a plugin) can't parse it.

[StuporHero]

Thanks for the information, Steve. I do need to use the Oracle plugin, so I'll look forward to the day when I can do that with this DSL. In the meantime, I guess my team will be using XML.