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ecto
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0.1.0
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 the repository migrations"
@recursive true
@moduledoc """
Runs the pending migrations for the given repository.
The repository must be set under `:ecto_repos` in the
current app configuration or given via the `-r` option.
By default, migrations are expected at "priv/YOUR_REPO/migrations"
directory of the current application but it can be configured
to be any subdirectory of `priv` by specifying 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`.
If the repository has not been started yet, one will be
started outside our application supervision tree and shutdown
afterwards.
## Examples
mix ecto.migrate
mix ecto.migrate -r Custom.Repo
mix ecto.migrate -n 3
mix ecto.migrate --step 3
mix ecto.migrate -v 20080906120000
mix ecto.migrate --to 20080906120000
## Command line options
* `-r`, `--repo` - the repo to migrate
* `--all` - run all pending migrations
* `--step` / `-n` - run n number of pending migrations
* `--to` / `-v` - run all migrations up to and including version
* `--quiet` - do not log migration commands
* `--prefix` - the prefix to run migrations on
* `--pool-size` - the pool size if the repository is started only for the task (defaults to 1)
"""
@doc false
def run(args, migrator \\ &Ecto.Migrator.run/4) do
repos = parse_repo(args)
{opts, _, _} = OptionParser.parse args,
switches: [all: :boolean, step: :integer, to: :integer, quiet: :boolean,
prefix: :string, pool_size: :integer],
aliases: [n: :step, v: :to]
opts =
if opts[:to] || opts[:step] || opts[:all],
do: opts,
else: Keyword.put(opts, :all, true)
opts =
if opts[:quiet],
do: Keyword.put(opts, :log, false),
else: opts
Enum.each repos, fn repo ->
ensure_repo(repo, args)
ensure_migrations_path(repo)
{:ok, pid, apps} = ensure_started(repo, opts)
sandbox? = repo.config[:pool] == Ecto.Adapters.SQL.Sandbox
# If the pool is Ecto.Adapters.SQL.Sandbox,
# let's make sure we get a connection outside of a sandbox.
if sandbox? do
Ecto.Adapters.SQL.Sandbox.checkin(repo)
Ecto.Adapters.SQL.Sandbox.checkout(repo, sandbox: false)
end
migrated =
try do
migrator.(repo, migrations_path(repo), :up, opts)
after
sandbox? && Ecto.Adapters.SQL.Sandbox.checkin(repo)
end
pid && repo.stop(pid)
restart_apps_if_migrated(apps, migrated)
end
end
end