Merge remote-tracking branch 'pleroma/develop' into notice-routes

[akkoma] / lib / mix / tasks / pleroma / database.ex

diff --git a/lib/mix/tasks/pleroma/database.ex b/lib/mix/tasks/pleroma/database.ex
index a098525038e008b77fcadbfa6fce1aa651295e24..e7f4b67a463d5b8b1dd540901b0db47e853d0a3b 100644 (file)
--- a/lib/mix/tasks/pleroma/database.ex
+++ b/lib/mix/tasks/pleroma/database.ex
@@ -1,5 +1,5 @@
 # Pleroma: A lightweight social networking server
-# Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/>
+# Copyright © 2017-2021 Pleroma Authors <https://pleroma.social/>
 # SPDX-License-Identifier: AGPL-3.0-only
 
 defmodule Mix.Tasks.Pleroma.Database do
@@ -8,10 +8,13 @@ defmodule Mix.Tasks.Pleroma.Database do
   alias Pleroma.Object
   alias Pleroma.Repo
   alias Pleroma.User
+
   require Logger
   require Pleroma.Constants
+
   import Ecto.Query
   import Mix.Pleroma
+
   use Mix.Task
 
   @shortdoc "A collection of database related tasks"
@@ -128,57 +131,6 @@ defmodule Mix.Tasks.Pleroma.Database do
     |> Stream.run()
   end
 
-  def run(["fill_old_hashtags", month_limit]) do
-    import Ecto.Query
-
-    start_pleroma()
-
-    month_limit = String.to_integer(month_limit)
-
-    if month_limit < 1 do
-      shell_error("Invalid `month_limit` argument, needs to be greater than 1")
-    else
-      time_limit = DateTime.utc_now() |> Timex.shift(months: -month_limit)
-
-      from(
-        o in Object,
-        where: fragment("(?)->>'hashtags' is null", o.data),
-        where: fragment("(?)->>'tag' != '[]'", o.data),
-        where: o.inserted_at < ^time_limit,
-        select: %{id: o.id, tag: fragment("(?)->>'tag'", o.data)}
-      )
-      |> Pleroma.Repo.chunk_stream(200, :batches)
-      |> Stream.each(fn objects ->
-        Repo.transaction(fn ->
-          objects_first = objects |> List.first()
-          objects_last = objects |> List.last()
-
-          Logger.info(
-            "fill_old_hashtags: #{objects_first.id} (#{objects_first.inserted_at}) -- #{
-              objects_last.id
-            } (#{objects_last.inserted_at})"
-          )
-
-          objects
-          |> Enum.map(fn object ->
-            tags =
-              object.tag
-              |> Jason.decode!()
-              |> Enum.filter(&is_bitstring(&1))
-
-            Object
-            |> where([o], o.id == ^object.id)
-            |> update([o],
-              set: [data: fragment("safe_jsonb_set(?, '{hashtags}', ?, true)", o.data, ^tags)]
-            )
-            |> Repo.update_all([], timeout: :infinity)
-          end)
-        end)
-      end)
-      |> Stream.run()
-    end
-  end
-
   def run(["vacuum", args]) do
     start_pleroma()
 
@@ -218,4 +170,79 @@ defmodule Mix.Tasks.Pleroma.Database do
     end)
     |> Stream.run()
   end
+
+  def run(["set_text_search_config", tsconfig]) do
+    start_pleroma()
+    %{rows: [[tsc]]} = Ecto.Adapters.SQL.query!(Pleroma.Repo, "SHOW default_text_search_config;")
+    shell_info("Current default_text_search_config: #{tsc}")
+
+    %{rows: [[db]]} = Ecto.Adapters.SQL.query!(Pleroma.Repo, "SELECT current_database();")
+    shell_info("Update default_text_search_config: #{tsconfig}")
+
+    %{messages: msg} =
+      Ecto.Adapters.SQL.query!(
+        Pleroma.Repo,
+        "ALTER DATABASE #{db} SET default_text_search_config = '#{tsconfig}';"
+      )
+
+    # non-exist config will not raise excpetion but only give >0 messages
+    if length(msg) > 0 do
+      shell_info("Error: #{inspect(msg, pretty: true)}")
+    else
+      rum_enabled = Pleroma.Config.get([:database, :rum_enabled])
+      shell_info("Recreate index, RUM: #{rum_enabled}")
+
+      # Note SQL below needs to be kept up-to-date with latest GIN or RUM index definition in future
+      if rum_enabled do
+        Ecto.Adapters.SQL.query!(
+          Pleroma.Repo,
+          "CREATE OR REPLACE FUNCTION objects_fts_update() RETURNS trigger AS $$ BEGIN
+          new.fts_content := to_tsvector(new.data->>'content');
+          RETURN new;
+          END
+          $$ LANGUAGE plpgsql"
+        )
+
+        shell_info("Refresh RUM index")
+        Ecto.Adapters.SQL.query!(Pleroma.Repo, "UPDATE objects SET updated_at = NOW();")
+      else
+        Ecto.Adapters.SQL.query!(Pleroma.Repo, "DROP INDEX IF EXISTS objects_fts;")
+
+        Ecto.Adapters.SQL.query!(
+          Pleroma.Repo,
+          "CREATE INDEX objects_fts ON objects USING gin(to_tsvector('#{tsconfig}', data->>'content')); "
+        )
+      end
+
+      shell_info('Done.')
+    end
+  end
+
+  # Rolls back a specific migration (leaving subsequent migrations applied).
+  # WARNING: imposes a risk of unrecoverable data loss — proceed at your own responsibility.
+  # Based on https://stackoverflow.com/a/53825840
+  def run(["rollback", version]) do
+    prompt = "SEVERE WARNING: this operation may result in unrecoverable data loss. Continue?"
+
+    if shell_prompt(prompt, "n") in ~w(Yn Y y) do
+      {_, result, _} =
+        Ecto.Migrator.with_repo(Pleroma.Repo, fn repo ->
+          version = String.to_integer(version)
+          re = ~r/^#{version}_.*\.exs/
+          path = Ecto.Migrator.migrations_path(repo)
+
+          with {_, "" <> file} <- {:find, Enum.find(File.ls!(path), &String.match?(&1, re))},
+               {_, [{mod, _} | _]} <- {:compile, Code.compile_file(Path.join(path, file))},
+               {_, :ok} <- {:rollback, Ecto.Migrator.down(repo, version, mod)} do
+            {:ok, "Reversed migration: #{file}"}
+          else
+            {:find, _} -> {:error, "No migration found with version prefix: #{version}"}
+            {:compile, e} -> {:error, "Problem compiling migration module: #{inspect(e)}"}
+            {:rollback, e} -> {:error, "Problem reversing migration: #{inspect(e)}"}
+          end
+        end)
+
+      shell_info(inspect(result))
+    end
+  end
 end