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A toolkit for data mapping and language integrated query for Elixir
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lib/mix/tasks/ecto.migrate.ex
defmodule Mix.Tasks.Ecto.Migrate do
use Mix.Task
import Mix.Ecto
@shortdoc "Runs migrations up on a repo"
@moduledoc """
Runs the pending migrations for the given repository.
By default, migrations are expected at "priv/YOUR_REPO/migrations"
directory of the current application but it can be configured
by specify the `:priv` key under the repository configuration.
Runs all pending migrations by default. To migrate up
to a version number, supply `--to version_number`.
To migrate up a specific number of times, use `--step n`.
## Command line options
* `--all` - run all pending migrations
* `--step` / `-n` - run n number of pending migrations
* `--to` / `-v` - run all migrations up to and including version
* `--no-start` - do not start applications
## Examples
mix ecto.migrate MyApp.Repo
mix ecto.migrate MyApp.Repo -n 3
mix ecto.migrate MyApp.Repo --step 3
mix ecto.migrate MyApp.Repo -v 20080906120000
mix ecto.migrate MyApp.Repo --to 20080906120000
"""
@doc false
def run(args, migrator \\ &Ecto.Migrator.run/4) do
Mix.Task.run "app.start", args
{opts, args, _} = OptionParser.parse args,
switches: [all: :boolean, step: :integer, to: :integer, start: :boolean],
aliases: [n: :step, v: :to]
{repo, _} = parse_repo(args)
ensure_repo(repo)
unless opts[:start], do: ensure_started(repo)
unless opts[:to] || opts[:step] || opts[:all] do
opts = Keyword.put(opts, :all, true)
end
migrator.(repo, migrations_path(repo), :up, opts)
end
end