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Don't pointlessly make copies of every file when verifying. (#225)

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Rick Gibbed authored and GitHub committed 2021-06-26 13:41:10 -06:00
1 parent bdc6ebf7ee
commit ad72f53cd7
1 file changed
+35 -16
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DepotDownloader/ContentDownloader.cs
+35 -16
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@@ -1067,7 +1067,8 @@ namespace DepotDownloader
{
neededChunks = new List<ProtoManifest.ChunkData>();
if (Config.VerifyAll || !oldManifestFile.FileHash.SequenceEqual(file.FileHash))
var hashMatches = oldManifestFile.FileHash.SequenceEqual(file.FileHash);
if (Config.VerifyAll || !hashMatches)
{
// we have a version of this file, but it doesn't fully match what we want
if (Config.VerifyAll)
@@ -1092,19 +1093,9 @@ namespace DepotDownloader
var orderedChunks = matchingChunks.OrderBy(x => x.OldChunk.Offset);
File.Move(fileFinalPath, fileStagingPath);
var copyChunks = new List<ChunkMatch>();
fs = File.Open(fileFinalPath, FileMode.Create);
try
{
fs.SetLength((long)file.TotalSize);
}
catch (IOException ex)
{
throw new ContentDownloaderException(String.Format("Failed to resize file to expected size {0}: {1}", fileFinalPath, ex.Message));
}
using (var fsOld = File.Open(fileStagingPath, FileMode.Open))
using (var fsOld = File.Open(fileFinalPath, FileMode.Open))
{
foreach (var match in orderedChunks)
{
@@ -1120,13 +1111,41 @@ namespace DepotDownloader
}
else
{
fs.Seek((long)match.NewChunk.Offset, SeekOrigin.Begin);
fs.Write(tmp, 0, tmp.Length);
copyChunks.Add(match);
}
}
}
File.Delete(fileStagingPath);
if (!hashMatches || neededChunks.Count > 0)
{
File.Move(fileFinalPath, fileStagingPath);
using (var fsOld = File.Open(fileStagingPath, FileMode.Open))
{
fs = File.Open(fileFinalPath, FileMode.Create);
try
{
fs.SetLength((long)file.TotalSize);
}
catch (IOException ex)
{
throw new ContentDownloaderException(String.Format("Failed to resize file to expected size {0}: {1}", fileFinalPath, ex.Message));
}
foreach (var match in copyChunks)
{
fsOld.Seek((long)match.OldChunk.Offset, SeekOrigin.Begin);
byte[] tmp = new byte[match.OldChunk.UncompressedLength];
fsOld.Read(tmp, 0, tmp.Length);
fs.Seek((long)match.NewChunk.Offset, SeekOrigin.Begin);
fs.Write(tmp, 0, tmp.Length);
}
}
File.Delete(fileStagingPath);
}
}
}
else