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eventstore lib mix tasks event_store.drop.ex
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lib/mix/tasks/event_store.drop.ex

defmodule Mix.Tasks.EventStore.Drop do
@moduledoc """
Drop the database for the EventStore.
## Examples
mix event_store.drop
"""
use Mix.Task
alias EventStore.Storage
alias EventStore.Storage.Database
@shortdoc "Drop the database for the EventStore"
@doc false
def run(_args) do
config = EventStore.Config.parse Application.get_env(:eventstore, Storage)
if skip_safety_warnings?() or Mix.shell.yes?("Are you sure you want to drop the EventStore database?") do
drop_database(config)
end
end
defp skip_safety_warnings? do
Mix.Project.config[:start_permanent] != true
end
defp drop_database(config) do
case Database.drop(config) do
:ok -> Mix.shell.info "The EventStore database has been dropped."
{:error, :already_down} -> Mix.shell.info "The EventStore database has already been dropped."
{:error, term} -> Mix.raise "The EventStore database couldn't be dropped, reason given: #{inspect term}."
end
end
end