Unclear how to generate SQL for schema migration

[greenrd]

There are a bunch of commands that generate SQL, but it's not clear to me (as someone not familiar with Liquibase) how I would use this plugin to just generate SQL for the update that would have been performed if I had just ran liquibase-update.

Does it need a new command? If not, then perhaps an example in the README.md would be useful.

[feoktant]

I am not sure it is still needed for you after 3 years, but I created PR. It mimics updateSql command

[elega9t]

Can we have a release version for this update?

[ydubey]

Finally, after much wait and frustration, I decided to push my own plugin.

https://github.com/ydubey/sbt-liquibase-plugin

Added:
Support for liquibase-update
Support to specify sql output file
Improve class loading by adding application classpath to plugin