penpot/backend/src/app/tasks/objects_gc.clj
2023-05-17 15:47:21 +02:00

246 lines
8.2 KiB
Clojure

;; This Source Code Form is subject to the terms of the Mozilla Public
;; License, v. 2.0. If a copy of the MPL was not distributed with this
;; file, You can obtain one at http://mozilla.org/MPL/2.0/.
;;
;; Copyright (c) KALEIDOS INC
(ns app.tasks.objects-gc
"A maintenance task that performs a general purpose garbage collection
of deleted or unreachable objects."
(:require
[app.common.data :as d]
[app.common.logging :as l]
[app.config :as cf]
[app.db :as db]
[app.media :as media]
[app.storage :as sto]
[app.util.time :as dt]
[clojure.spec.alpha :as s]
[integrant.core :as ig]))
(declare ^:private delete-profiles!)
(declare ^:private delete-teams!)
(declare ^:private delete-fonts!)
(declare ^:private delete-projects!)
(declare ^:private delete-files!)
(declare ^:private delete-orphan-teams!)
(defmethod ig/pre-init-spec ::handler [_]
(s/keys :req [::db/pool ::sto/storage]))
(defmethod ig/prep-key ::handler
[_ cfg]
(assoc cfg ::min-age cf/deletion-delay))
(defmethod ig/init-key ::handler
[_ {:keys [::db/pool ::sto/storage] :as cfg}]
(fn [params]
(db/with-atomic [conn pool]
(let [min-age (or (:min-age params) (::min-age cfg))
_ (l/info :hint "gc started"
:min-age (dt/format-duration min-age)
:rollback? (boolean (:rollback? params)))
storage (media/configure-assets-storage storage conn)
cfg (-> cfg
(assoc ::min-age (db/interval min-age))
(assoc ::conn conn)
(assoc ::storage storage))
htotal (+ (delete-profiles! cfg)
(delete-teams! cfg)
(delete-projects! cfg)
(delete-files! cfg)
(delete-fonts! cfg))
stotal (delete-orphan-teams! cfg)]
(l/info :hint "gc finished"
:deleted htotal
:orphans stotal
:rollback? (boolean (:rollback? params)))
(when (:rollback? params)
(db/rollback! conn))
{:processed (+ stotal htotal)
:orphans stotal}))))
(def ^:private sql:get-profiles-chunk
"select id, photo_id, created_at from profile
where deleted_at is not null
and deleted_at < now() - ?::interval
and created_at < ?
order by created_at desc
limit 10
for update skip locked")
(defn- delete-profiles!
[{:keys [::conn ::min-age ::storage] :as cfg}]
(letfn [(get-chunk [cursor]
(let [rows (db/exec! conn [sql:get-profiles-chunk min-age cursor])]
[(some->> rows peek :created-at) rows]))
(process-profile [total {:keys [id photo-id]}]
(l/debug :hint "permanently delete profile" :id (str id))
;; Mark as deleted the storage object related with the
;; photo-id field.
(some->> photo-id (sto/touch-object! storage))
;; And finally, permanently delete the profile.
(db/delete! conn :profile {:id id})
(inc total))]
(->> (d/iteration get-chunk :vf second :kf first :initk (dt/now))
(reduce process-profile 0))))
(def ^:private sql:get-teams-chunk
"select id, photo_id, created_at from team
where deleted_at is not null
and deleted_at < now() - ?::interval
and created_at < ?
order by created_at desc
limit 10
for update skip locked")
(defn- delete-teams!
[{:keys [::conn ::min-age ::storage] :as cfg}]
(letfn [(get-chunk [cursor]
(let [rows (db/exec! conn [sql:get-teams-chunk min-age cursor])]
[(some->> rows peek :created-at) rows]))
(process-team [total {:keys [id photo-id]}]
(l/debug :hint "permanently delete team" :id (str id))
;; Mark as deleted the storage object related with the
;; photo-id field.
(some->> photo-id (sto/touch-object! storage))
;; And finally, permanently delete the team.
(db/delete! conn :team {:id id})
(inc total))]
(->> (d/iteration get-chunk :vf second :kf first :initk (dt/now))
(reduce process-team 0))))
(def ^:private sql:get-orphan-teams-chunk
"select t.id, t.created_at
from team as t
left join team_profile_rel as tpr
on (t.id = tpr.team_id)
where tpr.profile_id is null
and t.created_at < ?
order by t.created_at desc
limit 10
for update of t skip locked;")
(defn- delete-orphan-teams!
"Find all orphan teams (with no members and mark them for
deletion (soft delete)."
[{:keys [::conn] :as cfg}]
(letfn [(get-chunk [cursor]
(let [rows (db/exec! conn [sql:get-orphan-teams-chunk cursor])]
[(some->> rows peek :created-at) rows]))
(process-team [total {:keys [id]}]
(let [result (db/update! conn :team
{:deleted-at (dt/now)}
{:id id :deleted-at nil}
{::db/return-keys? false})
count (db/get-update-count result)]
(when (pos? count)
(l/debug :hint "mark team for deletion" :id (str id) ))
(+ total count)))]
(->> (d/iteration get-chunk :vf second :kf first :initk (dt/now))
(reduce process-team 0))))
(def ^:private sql:get-fonts-chunk
"select id, created_at, woff1_file_id, woff2_file_id, otf_file_id, ttf_file_id
from team_font_variant
where deleted_at is not null
and deleted_at < now() - ?::interval
and created_at < ?
order by created_at desc
limit 10
for update skip locked")
(defn- delete-fonts!
[{:keys [::conn ::min-age ::storage] :as cfg}]
(letfn [(get-chunk [cursor]
(let [rows (db/exec! conn [sql:get-fonts-chunk min-age cursor])]
[(some->> rows peek :created-at) rows]))
(process-font [total {:keys [id] :as font}]
(l/debug :hint "permanently delete font variant" :id (str id))
;; Mark as deleted the all related storage objects
(some->> (:woff1-file-id font) (sto/touch-object! storage))
(some->> (:woff2-file-id font) (sto/touch-object! storage))
(some->> (:otf-file-id font) (sto/touch-object! storage))
(some->> (:ttf-file-id font) (sto/touch-object! storage))
;; And finally, permanently delete the team font variant
(db/delete! conn :team-font-variant {:id id})
(inc total))]
(->> (d/iteration get-chunk :vf second :kf first :initk (dt/now))
(reduce process-font 0))))
(def ^:private sql:get-projects-chunk
"select id, created_at
from project
where deleted_at is not null
and deleted_at < now() - ?::interval
and created_at < ?
order by created_at desc
limit 10
for update skip locked")
(defn- delete-projects!
[{:keys [::conn ::min-age] :as cfg}]
(letfn [(get-chunk [cursor]
(let [rows (db/exec! conn [sql:get-projects-chunk min-age cursor])]
[(some->> rows peek :created-at) rows]))
(process-project [total {:keys [id]}]
(l/debug :hint "permanently delete project" :id (str id))
;; And finally, permanently delete the project.
(db/delete! conn :project {:id id})
(inc total))]
(->> (d/iteration get-chunk :vf second :kf first :initk (dt/now))
(reduce process-project 0))))
(def ^:private sql:get-files-chunk
"select id, created_at
from file
where deleted_at is not null
and deleted_at < now() - ?::interval
and created_at < ?
order by created_at desc
limit 10
for update skip locked")
(defn- delete-files!
[{:keys [::conn ::min-age] :as cfg}]
(letfn [(get-chunk [cursor]
(let [rows (db/exec! conn [sql:get-files-chunk min-age cursor])]
[(some->> rows peek :created-at) rows]))
(process-file [total {:keys [id]}]
(l/debug :hint "permanently delete file" :id (str id))
;; And finally, permanently delete the file.
(db/delete! conn :file {:id id})
(inc total))]
(->> (d/iteration get-chunk :vf second :kf first :initk (dt/now))
(reduce process-file 0))))