# `mix chime.gen.migration`
[🔗](https://github.com/hattoriai/chime/blob/v0.1.0-dev/lib/mix/tasks/chime.gen.migration.ex#L1)

Generates the migration of Chime's tables in the app's repo: the one
that installs them, or, after an upgrade of Chime, the one that brings
them to its latest version.

    $ mix chime.gen.migration
    $ mix chime.gen.migration --repo MyApp.Repo

It is `mix phoenix_mountable.gen.migration Chime.Migrations`: the version
the app is at is read from its migrations, and the new migration pins the
latest (see `Chime.Migrations`). Run it with `mix ecto.migrate`.

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*Consult [api-reference.md](api-reference.md) for complete listing*