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refactor(database): reuse retention query in prune_objects

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prune_objects --keep-threads now shares the thread selection with
Pleroma.Retention, which additionally keeps threads that mention a
local user or that are referenced by a report. The hashtag cleanup
is shared as well.
This commit is contained in:
Lain Soykaf 2026-09-02 11:53:42 +04:00
commit fa4fb00910
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2 changed files with 24 additions and 41 deletions
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48
lib/mix/tasks/pleroma/database.ex
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@ -113,36 +113,13 @@ defmodule Mix.Tasks.Pleroma.Database do
Logger.info(log_message)
if Keyword.get(options, :keep_threads) do
# We want to delete objects from threads where
# 1. the newest post is still old
# 2. none of the activities is local
# 3. none of the activities is bookmarked
# 4. optionally none of the posts is non-public
# Delete objects from threads that nobody local interacted with and that
# have been quiet for longer than the retention period, see Pleroma.Retention.
deletable_context =
if Keyword.get(options, :keep_non_public) do
Pleroma.Activity
|> join(:left, [a], b in Pleroma.Bookmark, on: a.id == b.activity_id)
|> group_by([a], fragment("? ->> 'context'::text", a.data))
|> having(
[a],
not fragment(
# Posts (checked on Create Activity) is non-public
"bool_or((not(?->'to' \\? ? OR ?->'cc' \\? ?)) and ? ->> 'type' = 'Create')",
a.data,
^Pleroma.Constants.as_public(),
a.data,
^Pleroma.Constants.as_public(),
a.data
)
)
else
Pleroma.Activity
|> join(:left, [a], b in Pleroma.Bookmark, on: a.id == b.activity_id)
|> group_by([a], fragment("? ->> 'context'::text", a.data))
end
|> having([a], max(a.updated_at) < ^time_deadline)
|> having([a], not fragment("bool_or(?)", a.local))
|> having([_, b], fragment("max(?::text) is null", b.id))
time_deadline
|> Pleroma.Retention.evictable_contexts_query(
keep_non_public: Keyword.get(options, :keep_non_public)
)
|> select([a], fragment("? ->> 'context'::text", a.data))
Pleroma.Object
@ -222,18 +199,7 @@ defmodule Mix.Tasks.Pleroma.Database do
|> Repo.query([], timeout: :infinity)
end
"""
DELETE FROM hashtags AS ht
WHERE NOT EXISTS (
SELECT 1 FROM hashtags_objects hto
WHERE ht.id = hto.hashtag_id
)
AND NOT EXISTS (
SELECT 1 FROM user_follows_hashtag ufh
WHERE ht.id = ufh.hashtag_id
)
"""
|> Repo.query()
Pleroma.Retention.delete_unused_hashtags()
if Keyword.get(options, :vacuum) do
Maintenance.vacuum("full")