Packages
eventstore
0.14.0-rc.0
1.4.8
1.4.7
1.4.6
1.4.4
1.4.3
1.4.2
1.4.1
1.4.0
1.3.2
1.3.1
1.3.0
1.2.3
1.2.2
1.2.1
1.2.0
1.1.0
1.0.3
1.0.2
1.0.1
1.0.0
1.0.0-rc.0
0.17.0
0.16.2
0.16.1
0.16.0
0.15.1
0.15.0
0.14.0
0.14.0-rc.0
0.13.2
0.13.1
0.13.0
0.12.1
0.12.0
0.11.0
0.11.0-rc.0
0.10.1
0.10.0
0.9.0
0.8.1
0.8.0
0.7.4
0.7.3
0.7.2
0.7.1
0.7.0
0.6.2
0.6.1
0.6.0
0.5.2
0.5.1
0.5.0
0.4.3
0.4.2
0.4.1
0.4.0
0.3.0
0.2.1
0.2.0
0.1.0
0.0.5
0.0.4
0.0.3
0.0.2
0.0.1
Event store using PostgreSQL for persistence.
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lib/mix/tasks/event_store.init.ex
defmodule Mix.Tasks.EventStore.Init do
@moduledoc """
Initialize the database for the EventStore.
## Examples
mix event_store.init
## Command line options
* `--quiet` - do not log output
"""
use Mix.Task
alias EventStore.{Config, Storage}
@is_events_table_exists """
SELECT EXISTS (
SELECT 1
FROM information_schema.tables
WHERE table_schema = 'public'
AND table_name = 'events'
)
"""
@shortdoc "Initialize the database for the EventStore"
@doc false
def run(args) do
{:ok, _} = Application.ensure_all_started(:postgrex)
config = Config.parsed()
{opts, _, _} = OptionParser.parse(args, switches: [quiet: :boolean])
initialize_storage!(config, opts)
Mix.Task.reenable("event_store.init")
end
defp initialize_storage!(config, opts) do
{:ok, conn} = Postgrex.start_link(config)
conn_opts = [pool: DBConnection.Poolboy]
Postgrex.query!(conn, @is_events_table_exists, [], conn_opts)
|> case do
%{rows: [[true]]} ->
info("The EventStore database has already been initialized.", opts)
%{rows: [[false]]} ->
Storage.Initializer.run!(conn, conn_opts)
info("The EventStore database has been initialized.", opts)
end
end
defp info(msg, opts) do
unless opts[:quiet] do
Mix.shell().info(msg)
end
end
end