@softologies/grunt-liquibase

grunt-liquibase

Simple integration of liquibase with grunt - specifically for postgresql (the postgresql jdbc driver is bundled as part of the module - if you want to add more support then feel free to fork)

Getting Started

This plugin requires Grunt ~0.4.2

If you haven't used Grunt before, be sure to check out the Getting Started guide, as it explains how to create a Gruntfile as well as install and use Grunt plugins. Once you're familiar with that process, you may install this plugin with this command:

npm install grunt-liquibase --save-dev

Once the plugin has been installed, it may be enabled inside your Gruntfile with this line of JavaScript:

grunt.loadNpmTasks('grunt-liquibase');

The "liquibase" task

Overview

In your project's Gruntfile, add a section named liquibase to the data object passed into grunt.initConfig().

grunt.initConfig({
  liquibase : {
    options: {
      username : 'DB_USERNAME',
      password : 'DB_PASSWORD',
      url : 'jdbc:postgresql://DB_HOST:DB_PORT/DB_NAME'
    },
    update: {
      command: 'update'
    },
    dropAll: {
      command: 'dropAll'
    },
    version : {
      command: 'version'
    }
  },
});

Dry Run Support

If running grunt with the --no-write CLI flag, then no liquibase commands will be excuted. This is useful for performing a dry run to verify that the liquibase commands are being formed as you expect.

Example:

grunt liquibase:update --no-write --verbose

Produces:

...
Will excecute:update
Command: java -jar /Users/grunt-liquibase/lib/liquibase.jar --classpath /Users/grunt-liquibase/lib/postgresql-9.3-1100.jdbc41.jar --driver org.postgresql.Driver --logLevel info --username test_username --password test_password --url jdbc:postgresql://DB_HOST:DB_PORT/DB_NAME --changeLogFile changelog.xml update
>> no-write specified, not running command

Options

options.username

Type: String Default value: NONE - required

Database user - passed into the --username argument to liquibase.

options.password

Type: String Default value: NONE - required

Database password - passed into the --password argument to liquibase.

options.url

Type: String Default value: NONE - required

JDBC url - passed into the --url argument to liquibase.

options.changeLogFile

Type: String Default value: changelog.xml

Path to the changelog file for liquibase.

options.classpath

Type: String Default value: postgresql-9.3-1100.jdbc41.jar

Path to the jar file containing the jdbc driver. The module contains this jar file so you don't need it if you are talking to a postgresql database. Passed into the --classpath argument to liquibase.

options.driver

Type: String Default value: org.postgresql.Driver

JDBC driver class. Passed into the --driver argument to liquibase.

options.defaultSchemaName

Type: String Default value: null

Default schema name

options.defaultsFile

Type: String Default value: null

Liquibase properties file path

options.logLevel

Type: String Default value: info

Liquibase logLevel

Supported Commands

update

Runs all changesets in the changeLogFile

dropAll

Drops all database objects owned by the user. Note that functions, procedures and packages are not dropped

rollback

Rollback changesets in the changeLogFile to a specific tag. Must also supply the target tag as the commandAttr.

Example

Rollback to version 0.0.1

grunt.initConfig({
  liquibase: {
    options: {
      username : 'dbuser',
      password : 'passwd',
      url : 'jdbc:postgresql://localhost:5432/test_db'
    },
    rollback: {
      command: 'rollback',
      commandAttr: 'v0.0.1'
    }
  },
});

rollbackCount

Rollback up to N changesets in the changeLogFile. Must also supply the number of changesets to rollback in the commandAttr.

Example

Rollback the last 3 changesets

grunt.initConfig({
  liquibase: {
    options: {
      username : 'dbuser',
      password : 'passwd',
      url : 'jdbc:postgresql://localhost:5432/test_db'
    },
    rollback: {
      command: 'rollbackCount',
      commandAttr: '3'
    }
  },
});

tag

"Tags" the current database state for future rollback. Must also supply the desired tag name in the commadAttr.

Example

Tag the current DB with v0.1.2.

grunt.initConfig({
  liquibase: {
    options: {
      username : 'dbuser',
      password : 'passwd',
      url : 'jdbc:postgresql://localhost:5432/test_db'
    },
    tag: {
      command: 'tag',
      commandAttr: 'v0.1.2'
    }
  },
});

changelogSync

Marks all changesets in the changeLogFile as run in the database. Useful when you are not starting from a empty database.

changelogSyncSQL

Outputs the SQL to mark all changesets in the changeLogFile as run in the database. This allows DBAs to validate the SQL and then run it manually against the necessary database.

clearCheckSums

Clears checksums so they can be recalculated in the next run.

Usage Examples

Default Options

In this example, the default options are used to update a postgresql database called test_db running on localhost at port 5432 using the user dbuser with password passwd with the contents of changelog.xml

grunt.initConfig({
  liquibase: {
    options: {
      username : 'dbuser',
      password : 'passwd',
      url : 'jdbc:postgresql://localhost:5432/test_db'
    },
    command: 'update'
  },
});

Custom Options

In this example, the location of the changelog file is modified.

grunt.initConfig({
  liquibase: {
    options: {
      username : 'dbuser',
      password : 'passwd',
      url : 'jdbc:postgresql://localhost:5432/test_db',
      changelog : 'src/database/dbchangelog.xml'
    },
    command: 'update'
  },
});

Contributing

In lieu of a formal styleguide, take care to maintain the existing coding style. Add unit tests for any new or changed functionality. Lint and test your code using Grunt.