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Merge pull request #6185 from peppy/checksum-before-skip-copy

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Checksum before skip copy
This commit is contained in:
Dan Balasescu 2019-09-20 15:37:04 +09:00 committed by GitHub
commit 33e39795c3
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2 changed files with 52 additions and 1 deletions
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42
osu.Game.Tests/Beatmaps/IO/ImportBeatmapTest.cs
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@ -90,6 +90,48 @@ namespace osu.Game.Tests.Beatmaps.IO
}
}
[Test]
public async Task TestImportCorruptThenImport()
{
//unfortunately for the time being we need to reference osu.Framework.Desktop for a game host here.
using (HeadlessGameHost host = new CleanRunHeadlessGameHost("TestImportThenImport"))
{
try
{
var osu = loadOsu(host);
var imported = await LoadOszIntoOsu(osu);
var firstFile = imported.Files.First();
var files = osu.Dependencies.Get<FileStore>();
long originalLength;
using (var stream = files.Storage.GetStream(firstFile.FileInfo.StoragePath))
originalLength = stream.Length;
using (var stream = files.Storage.GetStream(firstFile.FileInfo.StoragePath, FileAccess.Write, FileMode.Create))
stream.WriteByte(0);
var importedSecondTime = await LoadOszIntoOsu(osu);
using (var stream = files.Storage.GetStream(firstFile.FileInfo.StoragePath))
Assert.AreEqual(stream.Length, originalLength, "Corruption was not fixed on second import");
// check the newly "imported" beatmap is actually just the restored previous import. since it matches hash.
Assert.IsTrue(imported.ID == importedSecondTime.ID);
Assert.IsTrue(imported.Beatmaps.First().ID == importedSecondTime.Beatmaps.First().ID);
checkBeatmapSetCount(osu, 1);
checkSingleReferencedFileCount(osu, 18);
}
finally
{
host.Exit();
}
}
}
[Test]
public async Task TestRollbackOnFailure()
{

11
osu.Game/IO/FileStore.cs
View File

@ -50,7 +50,16 @@ namespace osu.Game.IO
string path = info.StoragePath;
// we may be re-adding a file to fix missing store entries.
if (!Storage.Exists(path))
bool requiresCopy = !Storage.Exists(path);
if (!requiresCopy)
{
// even if the file already exists, check the existing checksum for safety.
using (var stream = Storage.GetStream(path))
requiresCopy |= stream.ComputeSHA2Hash() != hash;
}
if (requiresCopy)
{
data.Seek(0, SeekOrigin.Begin);