Generate, execute, and roll back SQL migrations.
Voltron-Migrator is a tool for executing SQL migrations with Node. While it's part of the Voltron.io framework, it's also a stand-alone component. Voltron-Migrator is heavily modeled after voodootikigod's migrator; in fact, the project started as a fork of voodootikigod's code.
Voltron-Migrator has two main purposes: generate SQL migrations, and execute them.
V-M allows both the application and reversion of migrations. Like Rails,
it creates a
schema_migrations table in your database to track which
migrations have already been executed, and it prefixes generated
migration files with a timestamp of 'YYYYMMDDHHMMSS'.
Migrations are written in SQL and do not use an abstraction layer.
Include Voltron.io or Voltron-Migration in your package.json file. If you
node_modules\.bin in your path, just execute
migrate. You can
provide database configuration in two ways:
via a configuration file that will be required. The config file must
return an object with a
database property, which itself exposes a hash
of the following properties: database, host, port, type, user (optional),
via explicit values on the command line. The following properties are required: database, host, port, type. User and password are optional.
V-M assumes that your migrations are included in
.\migrations, but you
can change that via a CLI argument.
migrate on its own will execute migrations in order in the specified
source directory, skipping over migrations that have already been run. If
--revert as an argument, the migrations were be rolled back,
starting with the most recent migration and ignoring any migrations that
haven't yet been applied.
migrate -g or
<filename> will create two
migration files of the specified filename:
<filename>_down.sql. As you can expect,
up files are run when migrations
are executed, and
down files are run when migrations are reverted.
Postgres and MySQL are currently supported.
The MIT License (MIT) Copyright © 2012 Justin Reidy, http://rzrsharp.net
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