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108 lines
3.2 KiB
Elixir
108 lines
3.2 KiB
Elixir
# Pleroma: A lightweight social networking server
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# Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/>
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# SPDX-License-Identifier: AGPL-3.0-only
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defmodule Pleroma.ApplicationRequirements do
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@moduledoc """
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The module represents the collection of validations to runs before start server.
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"""
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defmodule VerifyError, do: defexception([:message])
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import Ecto.Query
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require Logger
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@spec verify!() :: :ok | VerifyError.t()
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def verify! do
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:ok
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|> check_migrations_applied!()
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|> check_rum!()
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|> handle_result()
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end
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defp handle_result(:ok), do: :ok
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defp handle_result({:error, message}), do: raise(VerifyError, message: message)
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# Checks for pending migrations.
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#
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def check_migrations_applied!(:ok) do
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unless Pleroma.Config.get(
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[:i_am_aware_this_may_cause_data_loss, :disable_migration_check],
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false
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) do
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{_, res, _} =
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Ecto.Migrator.with_repo(Pleroma.Repo, fn repo ->
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down_migrations =
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Ecto.Migrator.migrations(repo)
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|> Enum.reject(fn
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{:up, _, _} -> true
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{:down, _, _} -> false
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end)
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if length(down_migrations) > 0 do
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down_migrations_text =
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Enum.map(down_migrations, fn {:down, id, name} -> "- #{name} (#{id})\n" end)
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Logger.error(
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"The following migrations were not applied:\n#{down_migrations_text}If you want to start Pleroma anyway, set\nconfig :pleroma, :i_am_aware_this_may_cause_data_loss, disable_migration_check: true"
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)
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{:error, "Unapplied Migrations detected"}
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else
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:ok
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end
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end)
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res
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else
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:ok
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end
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end
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def check_migrations_applied!(result), do: result
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# Checks for settings of RUM indexes.
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#
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defp check_rum!(:ok) do
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{_, res, _} =
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Ecto.Migrator.with_repo(Pleroma.Repo, fn repo ->
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migrate =
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from(o in "columns",
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where: o.table_name == "objects",
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where: o.column_name == "fts_content"
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)
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|> repo.exists?(prefix: "information_schema")
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setting = Pleroma.Config.get([:database, :rum_enabled], false)
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do_check_rum!(setting, migrate)
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end)
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res
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end
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defp check_rum!(result), do: result
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defp do_check_rum!(setting, migrate) do
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case {setting, migrate} do
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{true, false} ->
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Logger.error(
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"Use `RUM` index is enabled, but were not applied migrations for it.\nIf you want to start Pleroma anyway, set\nconfig :pleroma, :database, rum_enabled: false\nOtherwise apply the following migrations:\n`mix ecto.migrate --migrations-path priv/repo/optional_migrations/rum_indexing/`"
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)
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{:error, "Unapplied RUM Migrations detected"}
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{false, true} ->
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Logger.error(
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"Detected applied migrations to use `RUM` index, but `RUM` isn't enable in settings.\nIf you want to use `RUM`, set\nconfig :pleroma, :database, rum_enabled: true\nOtherwise roll `RUM` migrations back.\n`mix ecto.rollback --migrations-path priv/repo/optional_migrations/rum_indexing/`"
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)
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{:error, "RUM Migrations detected"}
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_ ->
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:ok
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end
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end
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end
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