I would start by looking at this page in the documentation - it describes what you need to do for the most part.
The example there could be more detailed, but the important thing for you is knowing that the generateChangeLog command can generate any format of changelog. Liquibase just looks at the extension of the changelog filename you supply and generates a file of that format.
So if you run
liquibase --changeLogFile=changelog.xml generateChangeLog
it will generate an XML formatted changelog. But if you run it like
liquibase --changeLogFile=changelog.yaml generateChangeLog
it will generate a yaml formatted changelog.
Steve Donie
Principal Software Engineer
Datical, Inc. http://www.datical.com/
Steve Donie
Principal Software Engineer
Datical, Inc. http://www.datical.com/