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Failing to read huge pack files #1835
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I'm using lib2gitsharp with big enterprise repositories which may have pack files with a size of 4 to 5 GB. When the size of the initially cloned pack file exceeds a certain value, reading operations will fail. I started with a 4.5 GB pack file repo, which I updated incrementally for some months. This poses no problems. When I freshly clone the same repo now, the initial pack file has (due to ongoing development) grown to 5.5 GB, which lib2gitsharp cannot handle any more.
Reproduction steps
Connect to a repository with pack files of size between 4.5 GB (working) and 5.56 GB (failing).
Iterate the commits of a branch or call a Diff.Compare on two Trees.
Expected behavior
Iterating the commit collection or comparing two trees works without exception.
Actual behavior
A LibGit2SharpException exception is thrown:
LibGit2Sharp.LibGit2SharpException
HResult=0x80131500
Message=invalid pack file - delta offset is zero
Source=LibGit2Sharp
StackTrace:
at LibGit2Sharp.Core.Ensure.HandleError(Int32 result) in C:\projects\libgit2sharp\LibGit2Sharp\Core\Ensure.cs:line 154
Version of LibGit2Sharp (release number or SHA1)
0.26.2
Operating system(s) tested; .NET runtime tested
Win 10, .NET Framework 4.8
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