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/*
GoToSocial
Copyright (C) 2021-2022 GoToSocial Authors admin@gotosocial.org
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU Affero General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Affero General Public License for more details.
You should have received a copy of the GNU Affero General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package media
import (
"context"
"time"
"codeberg.org/gruf/go-store/v2/storage"
"github.com/superseriousbusiness/gotosocial/internal/db"
"github.com/superseriousbusiness/gotosocial/internal/gtsmodel"
"github.com/superseriousbusiness/gotosocial/internal/log"
)
func (m *manager) PruneUnusedLocalAttachments(ctx context.Context) (int, error) {
var totalPruned int
var maxID string
var attachments []*gtsmodel.MediaAttachment
var err error
olderThan := time.Now().Add(-time.Hour * 24 * time.Duration(UnusedLocalAttachmentCacheDays))
log.Infof("PruneUnusedLocalAttachments: pruning unused local attachments older than %s", olderThan)
// select 20 attachments at a time and prune them
for attachments, err = m.db.GetLocalUnattachedOlderThan(ctx, olderThan, maxID, selectPruneLimit); err == nil && len(attachments) != 0; attachments, err = m.db.GetLocalUnattachedOlderThan(ctx, olderThan, maxID, selectPruneLimit) {
// use the id of the last attachment in the slice as the next 'maxID' value
l := len(attachments)
maxID = attachments[l-1].ID
log.Tracef("PruneUnusedLocalAttachments: got %d unused local attachments older than %s with maxID < %s", l, olderThan, maxID)
for _, attachment := range attachments {
if err := m.pruneOneLocal(ctx, attachment); err != nil {
return totalPruned, err
}
totalPruned++
}
}
// make sure we don't have a real error when we leave the loop
if err != nil && err != db.ErrNoEntries {
return totalPruned, err
}
log.Infof("PruneUnusedLocalAttachments: finished pruning: pruned %d entries", totalPruned)
return totalPruned, nil
}
func (m *manager) pruneOneLocal(ctx context.Context, attachment *gtsmodel.MediaAttachment) error {
if attachment.File.Path != "" {
// delete the full size attachment from storage
log.Tracef("pruneOneLocal: deleting %s", attachment.File.Path)
if err := m.storage.Delete(ctx, attachment.File.Path); err != nil && err != storage.ErrNotFound {
return err
}
}
if attachment.Thumbnail.Path != "" {
// delete the thumbnail from storage
log.Tracef("pruneOneLocal: deleting %s", attachment.Thumbnail.Path)
if err := m.storage.Delete(ctx, attachment.Thumbnail.Path); err != nil && err != storage.ErrNotFound {
return err
}
}
// delete the attachment completely
return m.db.DeleteByID(ctx, attachment.ID, attachment)
}
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