public static ObjectHash WriteFixedTree(string vcsPath, Tree tree)
{
var resultingTreeLines = new List <Tree.TreeLine>();
bool fixRequired = false;
foreach (var treeLine in tree.Lines)
{
if (!treeLine.IsDirectory())
{
resultingTreeLines.Add(treeLine);
continue;
}
var childTree = GitObjectFactory.ReadTree(vcsPath, treeLine.Hash);
var fixedTreeHash = WriteFixedTree(vcsPath, childTree);
resultingTreeLines.Add(new Tree.TreeLine(treeLine.TextBytes, fixedTreeHash));
if (fixedTreeHash != childTree.Hash)
{
fixRequired = true;
}
}
if (fixRequired || Tree.HasDuplicateLines(resultingTreeLines))
{
tree = Tree.GetFixedTree(resultingTreeLines);
HashContent.WriteObject(vcsPath, tree);
}
return(tree.Hash);
}
private static bool HasDefectiveTree(string vcsPath, Commit commit)
{
if (SeenTrees.TryGetValue(commit.TreeHash, out bool isDefective))
{
return(isDefective);
}
var tree = GitObjectFactory.ReadTree(vcsPath, commit.TreeHash);
return(IsDefectiveTree(vcsPath, tree));
}
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);
}