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

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# Pleroma: A lightweight social networking server
# Copyright © 2017-2018 Pleroma Authors <https://pleroma.social/>
# SPDX-License-Identifier: AGPL-3.0-only
defmodule Mix.Tasks.Pleroma.Database do
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alias Pleroma.Conversation
alias Pleroma.Object
alias Pleroma.Repo
alias Pleroma.User
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require Logger
import Mix.Pleroma
use Mix.Task
@shortdoc "A collection of database related tasks"
@moduledoc """
A collection of database related tasks
## Replace embedded objects with their references
Replaces embedded objects with references to them in the `objects` table. Only needs to be ran once. The reason why this is not a migration is because it could significantly increase the database size after being ran, however after this `VACUUM FULL` will be able to reclaim about 20% (really depends on what is in the database, your mileage may vary) of the db size before the migration.
mix pleroma.database remove_embedded_objects
Options:
- `--vacuum` - run `VACUUM FULL` after the embedded objects are replaced with their references
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## Prune old objects from the database
mix pleroma.database prune_objects
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## Create a conversation for all existing DMs. Can be safely re-run.
mix pleroma.database bump_all_conversations
## Remove duplicated items from following and update followers count for all users
mix pleroma.database update_users_following_followers_counts
"""
def run(["remove_embedded_objects" | args]) do
{options, [], []} =
OptionParser.parse(
args,
strict: [
vacuum: :boolean
]
)
start_pleroma()
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Logger.info("Removing embedded objects")
Repo.query!(
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"update activities set data = jsonb_set(data, '{object}'::text[], data->'object'->'id') where data->'object'->>'id' is not null;",
[],
timeout: :infinity
)
if Keyword.get(options, :vacuum) do
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Logger.info("Runnning VACUUM FULL")
Repo.query!(
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"vacuum full;",
[],
timeout: :infinity
)
end
end
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def run(["bump_all_conversations"]) do
start_pleroma()
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Conversation.bump_for_all_activities()
end
def run(["update_users_following_followers_counts"]) do
start_pleroma()
users = Repo.all(User)
Enum.each(users, &User.remove_duplicated_following/1)
Enum.each(users, &User.update_follower_count/1)
end
def run(["prune_objects" | args]) do
import Ecto.Query
{options, [], []} =
OptionParser.parse(
args,
strict: [
vacuum: :boolean
]
)
start_pleroma()
deadline = Pleroma.Config.get([:instance, :remote_post_retention_days])
Logger.info("Pruning objects older than #{deadline} days")
time_deadline =
NaiveDateTime.utc_now()
|> NaiveDateTime.add(-(deadline * 86_400))
public = "https://www.w3.org/ns/activitystreams#Public"
from(o in Object,
where: fragment("?->'to' \\? ? OR ?->'cc' \\? ?", o.data, ^public, o.data, ^public),
where: o.inserted_at < ^time_deadline,
where:
fragment("split_part(?->>'actor', '/', 3) != ?", o.data, ^Pleroma.Web.Endpoint.host())
)
|> Repo.delete_all(timeout: :infinity)
if Keyword.get(options, :vacuum) do
Logger.info("Runnning VACUUM FULL")
Repo.query!(
"vacuum full;",
[],
timeout: :infinity
)
end
end
end