static Dictionary <ObjectHash, ObjectHash> FixDefectiveCommits(string vcsPath, List <ObjectHash> defectiveCommits)
{
var rewrittenCommitHashes = new Dictionary <ObjectHash, ObjectHash>();
foreach (var commit in CommitWalker.CommitsInOrder(vcsPath))
{
if (rewrittenCommitHashes.ContainsKey(commit.Hash))
{
continue;
}
// Rewrite this commit
byte[] newCommitBytes;
if (defectiveCommits.Contains(commit.Hash))
{
var fixedTreeHash = WriteFixedTree(vcsPath, GitObjectFactory.ReadTree(vcsPath, commit.TreeHash));
newCommitBytes = Commit.GetSerializedCommitWithChangedTreeAndParents(commit, fixedTreeHash,
CorrectParents(commit.Parents, rewrittenCommitHashes).ToList());
}
else
{
newCommitBytes = Commit.GetSerializedCommitWithChangedTreeAndParents(commit, commit.TreeHash,
CorrectParents(commit.Parents, rewrittenCommitHashes).ToList());
}
var fileObjectBytes = GitObjectFactory.GetBytesWithHeader(GitObjectType.Commit, newCommitBytes);
var newCommitHash = new ObjectHash(Hash.Create(fileObjectBytes));
if (newCommitHash != commit.Hash && !rewrittenCommitHashes.ContainsKey(commit.Hash))
{
HashContent.WriteFile(vcsPath, fileObjectBytes, newCommitHash.ToString());
rewrittenCommitHashes.Add(commit.Hash, newCommitHash);
}
}
return(rewrittenCommitHashes);
}