http://www.dropwizard.io/1.3.16/dropwizard-migrations: Dropwizard is a Java framework for developing ops-friendly, high-performance, RESTful web applications.
  • Coda Hale
  • Nick Telford
  • Graham O'Regan
  • Ryan Kennedy
  • Camille Fournier
  • Carlo Barbara
  • Matt Veitas
  • Ryan Tenney
  • Jochen Schalanda
  • Glenn McAllister
  • Nick Babcock
  • Justin Plock
  • Artem Prigoda 
package io.dropwizard.migrations;

import io.dropwizard.Configuration;
import io.dropwizard.db.DatabaseConfiguration;
import liquibase.Liquibase;
import net.sourceforge.argparse4j.impl.Arguments;
import net.sourceforge.argparse4j.inf.Namespace;
import net.sourceforge.argparse4j.inf.Subparser;

public class DbDropAllCommand<T extends Configuration> extends AbstractLiquibaseCommand<T> {
    public DbDropAllCommand(DatabaseConfiguration<T> strategy, Class<T> configurationClass, String migrationsFileName) {
        super("drop-all", "Delete all user-owned objects from the database.", strategy, configurationClass, migrationsFileName);
    }

    @Override
    public void configure(Subparser subparser) {
        super.configure(subparser);
        subparser.addArgument("--confirm-delete-everything")
                 .action(Arguments.storeTrue())
                 .required(true)
                 .help("indicate you understand this deletes everything in your database");
    }

    @Override
    public void run(Namespace namespace, Liquibase liquibase) throws Exception {
        liquibase.dropAll();
    }
}