/// <summary>Push a candidate object onto the generator's traversal stack.</summary>
/// <remarks>
/// Push a candidate object onto the generator's traversal stack.
/// <p>
/// Candidates should be pushed in history order from oldest-to-newest.
/// Applications should push the starting commit first, then the index
/// revision (if the index is interesting), and finally the working tree copy
/// (if the working tree is interesting).
/// </remarks>
/// <param name="description">description of the blob revision, such as "Working Tree".
/// </param>
/// <param name="id">may be a commit or a blob.</param>
/// <returns>
///
/// <code>this</code>
/// </returns>
/// <exception cref="System.IO.IOException">the repository cannot be read.</exception>
public virtual NGit.Blame.BlameGenerator Push(string description, AnyObjectId id)
{
ObjectLoader ldr = reader.Open(id);
if (ldr.GetType() == Constants.OBJ_BLOB)
{
if (description == null)
{
description = JGitText.Get().blameNotCommittedYet;
}
Candidate.BlobCandidate c = new Candidate.BlobCandidate(description, resultPath);
c.sourceBlob = id.ToObjectId();
c.sourceText = new RawText(ldr.GetCachedBytes(int.MaxValue));
c.regionList = new Region(0, 0, c.sourceText.Size());
remaining = c.sourceText.Size();
Push(c);
return(this);
}
RevCommit commit = revPool.ParseCommit(id);
if (!Find(commit, resultPath))
{
return(this);
}
Candidate c_1 = new Candidate(commit, resultPath);
c_1.sourceBlob = idBuf.ToObjectId();
c_1.LoadText(reader);
c_1.regionList = new Region(0, 0, c_1.sourceText.Size());
remaining = c_1.sourceText.Size();
Push(c_1);
return(this);
}
/// <exception cref="System.IO.IOException"></exception>
private bool ProcessOne(Candidate n)
{
RevCommit parent = n.GetParent(0);
if (parent == null)
{
return(Split(n.GetNextCandidate(0), n));
}
if (parent.Has(SEEN))
{
return(false);
}
revPool.ParseHeaders(parent);
if (Find(parent, n.sourcePath))
{
if (idBuf.Equals(n.sourceBlob))
{
// The common case of the file not being modified in
// a simple string-of-pearls history. Blame parent.
n.sourceCommit = parent;
Push(n);
return(false);
}
Candidate next = n.Create(parent, n.sourcePath);
next.sourceBlob = idBuf.ToObjectId();
next.LoadText(reader);
return(Split(next, n));
}
if (n.sourceCommit == null)
{
return(Result(n));
}
DiffEntry r = FindRename(parent, n.sourceCommit, n.sourcePath);
if (r == null)
{
return(Result(n));
}
if (0 == r.GetOldId().PrefixCompare(n.sourceBlob))
{
// A 100% rename without any content change can also
// skip directly to the parent.
n.sourceCommit = parent;
n.sourcePath = PathFilter.Create(r.GetOldPath());
Push(n);
return(false);
}
Candidate next_1 = n.Create(parent, PathFilter.Create(r.GetOldPath()));
next_1.sourceBlob = r.GetOldId().ToObjectId();
next_1.renameScore = r.GetScore();
next_1.LoadText(reader);
return(Split(next_1, n));
}
