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liquibase plugin for sbt 0.11+ / 0.12
Scala
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Asdf

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README.md

Liquibase plugin for sbt 0.11 / 0.12

Instructions for use:

Step 1: Include the plugin in your build

Add the following to your project/plugins.sbt:

sbt-0.11.2 / 0.12.1

resolvers += "bigtoast-github" at "http://bigtoast.github.com/repo/"

addSbtPlugin("com.github.bigtoast" % "sbt-liquibase" % "0.5")

Step 2: Add sbt-liquibase settings to your build

Add the following to your 'build.sbt' ( if you are using build.sbt )

import com.github.bigtoast.sbtliquibase.LiquibasePlugin

seq(LiquibasePlugin.liquibaseSettings: _*)

liquibaseUsername := ""

liquibasePassword := ""

liquibaseDriver   := "com.mysql.jdbc.Driver"

liquibaseUrl      := "jdbc:mysql://localhost:3306/test_db?createDatabaseIfNotExist=true"

Or if you are using a build object extending from Build:

import sbt._
import Keys._
import com.github.bigtoast.sbtliquibase.LiquibasePlugin._

class MyBuildThatHasntDrankTheNoSQLKoolAid extends Build {
     lazy val seniorProject = Project("hola", file("."), settings = Defaults.defaultSettings ++ liquibaseSettings ++ Seq (
          liquibaseUsername := "dbusername",
          liquibasePassword := "kittensareevil"
          /* lots more liquibase settings available */
     )
}

Settings

liquibaseUsername Username for the database. This defaults to blank.
liquibaseUsername := "asdf"
liquibasePassword Password for the database. This defaults to blank.
liquibasePassword := "secretstuff"
liqubaseDriver Database driver classname. There is no default.
liquibaseDriver := "com.mysql.jdbc.Driver"
liquibaseUrl Database connection uri. There is no default.
liquibaseUrl := "jdbc:mysql://localhost:3306/mydb"
liquibaseDefaultSchemaName Default schema name for the db if it isn't defined in the uri. This defaults to null.
liquibaseDefaultSchemaName := "dbname"
liquibaseChangelog Full path to your changelog file. This defaults 'src/main/migrations/changelog.xml'.
liquibaseChangelog := "other/path/dbchanges.xml"

Tasks

liquibase-update Run the liquibase migration
liquibase-status Print count of yet to be run changesets
liquibase-clear-checksums Removes all saved checksums from database log. Useful for 'MD5Sum Check Failed' errors
liquibase-list-locks Lists who currently has locks on the database changelog
liquibase-release-locks Releases all locks on the database changelog.
liquibase-validate-changelog Checks changelog for errors.
liquibase-db-diff ( this isn't implemented yet ) Generate changeSet(s) to make Test DB match Development
liquibase-db-doc Generates Javadoc-like documentation based on current database and change log
liquibase-generate-changelog Writes Change Log XML to copy the current state of the database to the file defined in the changelog setting
liquibase-changelog-sync-sql Writes SQL to mark all changes as executed in the database to STDOUT
liquibase-tag {tag} Tags the current database state for future rollback with {tag}
liquibase-rollback {tag} Rolls back the database to the the state is was when the {tag} was applied.
liquibase-rollback-sql {tag} Writes SQL to roll back the database to that state it was in when the {tag} was applied to STDOUT
liquibase-rollback-count {int} Rolls back the last {int i} change sets applied to the database
liquibase-rollback-sql-count {int} Writes SQL to roll back the last {int i} change sets to STDOUT applied to the database
liquibase-rollback-to-date { yyyy-MM-dd HH:mm:ss } Rolls back the database to the the state it was at the given date/time. Date Format: yyyy-MM-dd HH:mm:ss
liquibase-rollback-to-date-sql { yyyy-MM-dd HH:mm:ss } Writes SQL to roll back the database to that state it was in at the given date/time version to STDOUT
liquibase-future-rollback-sql Writes SQL to roll back the database to the current state after the changes in the changelog have been applied.
liquibase-drop-all Drop all tables

Notes

I needed liquibase in an sbt project and after a little encouragement from a recent BASE (Bay Area Scala Enthusiasts) meeting I thought I would hack it out. We have been using it in production for a few months now and haven't had any real problems other than to make sure that the changelog path is relative ( which it is by default ). The reason for using a relative path is that liquibase stores the path to the changelog in the DATABASECHANGELOG table and the path is used to detect if a changelog has already been run. If you use absolute paths and then run your migrations from somewhere else on your computer ( you moved your project for example ) the migration will fail because liquibase will try to run the same migrations again.

If any bugs are found or features wanted please file an issue in the github project. I will do my best to accommodate.

Acknoledgements

I used the following plugins as reference

  • sbt-liquibase plugin for sbt 0.7
  • grails liquibase plugin
  • sbt-protobuf plugin for sbt 0.10
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