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Fix skins potentially being duplicated on batch import 

Resolves https://github.com/ppy/osu/discussions/19024#discussioncomment-3099200
This commit is contained in:
Dean Herbert 2022-07-07 22:38:54 +09:00
parent 7086779cf4
commit cf1da1dd18
1 changed files with 7 additions and 5 deletions
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10
osu.Game/Database/RealmArchiveModelImporter.cs
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@ -258,15 +258,13 @@ await Task.WhenAll(tasks.Select(async task =>
{
cancellationToken.ThrowIfCancellationRequested();
bool checkedExisting = false;
TModel? existing = null;
TModel? existing;
if (batchImport && archive != null)
{
// this is a fast bail condition to improve large import performance.
item.Hash = computeHashFast(archive);
checkedExisting = true;
existing = CheckForExisting(item, realm);
if (existing != null)
@ -311,7 +309,11 @@ await Task.WhenAll(tasks.Select(async task =>
// TODO: we may want to run this outside of the transaction.
Populate(item, archive, realm, cancellationToken);
if (!checkedExisting)
// Populate() may have adjusted file content (see SkinImporter.updateSkinIniMetadata), so regardless of whether a fast check was done earlier, let's
// check for existing items a second time.
//
// If this is ever a performance issue, the fast-check hash can be compared and trigger a skip of this second check if it still matches.
// I don't think it is a huge deal doing a second indexed check, though.
existing = CheckForExisting(item, realm);
if (existing != null)