/// <summary>Look up an entry with the specified path.</summary>
/// <remarks>Look up an entry with the specified path.</remarks>
/// <param name="path"></param>
/// <returns>index entry for the path or null if not in index.</returns>
/// <exception cref="Sharpen.UnsupportedEncodingException">Sharpen.UnsupportedEncodingException
/// </exception>
public virtual GitIndex.Entry GetEntry(string path)
{
return(entries.Get(Repository.GitInternalSlash(Constants.Encode(path))));
}
/// <summary>Write content of index to disk.</summary>
/// <remarks>Write content of index to disk.</remarks>
/// <exception cref="System.IO.IOException">System.IO.IOException</exception>
public virtual void Write()
{
CheckWriteOk();
FilePath tmpIndex = new FilePath(cacheFile.GetAbsoluteFile() + ".tmp");
FilePath Lock = new FilePath(cacheFile.GetAbsoluteFile() + ".lock");
if (!Lock.CreateNewFile())
{
throw new IOException(JGitText.Get().indexFileIsInUse);
}
try
{
FileOutputStream fileOutputStream = new FileOutputStream(tmpIndex);
FileChannel fc = fileOutputStream.GetChannel();
ByteBuffer buf = ByteBuffer.Allocate(4096);
MessageDigest newMessageDigest = Constants.NewMessageDigest();
header = new GitIndex.Header(entries);
header.Write(buf);
buf.Flip();
newMessageDigest.Update(((byte[])buf.Array()), buf.ArrayOffset(), buf.Limit());
fc.Write(buf);
buf.Flip();
buf.Clear();
for (Iterator i = entries.Values.Iterator(); i.HasNext();)
{
GitIndex.Entry e = (GitIndex.Entry)i.Next();
e.Write(buf);
buf.Flip();
newMessageDigest.Update(((byte[])buf.Array()), buf.ArrayOffset(), buf.Limit());
fc.Write(buf);
buf.Flip();
buf.Clear();
}
buf.Put(newMessageDigest.Digest());
buf.Flip();
fc.Write(buf);
fc.Close();
fileOutputStream.Close();
if (cacheFile.Exists())
{
if (db.FileSystem.RetryFailedLockFileCommit())
{
// file deletion fails on windows if another
// thread is reading the file concurrently
// So let's try 10 times...
bool deleted = false;
for (int i_1 = 0; i_1 < 10; i_1++)
{
if (cacheFile.Delete())
{
deleted = true;
break;
}
try
{
Sharpen.Thread.Sleep(100);
}
catch (Exception)
{
}
}
// ignore
if (!deleted)
{
throw new IOException(JGitText.Get().couldNotRenameDeleteOldIndex);
}
}
else
{
if (!cacheFile.Delete())
{
throw new IOException(JGitText.Get().couldNotRenameDeleteOldIndex);
}
}
}
if (!tmpIndex.RenameTo(cacheFile))
{
throw new IOException(JGitText.Get().couldNotRenameTemporaryIndexFileToIndex);
}
changed = false;
statDirty = false;
lastCacheTime = cacheFile.LastModified();
db.FireEvent(new IndexChangedEvent());
}
finally
{
if (!Lock.Delete())
{
throw new IOException(JGitText.Get().couldNotDeleteLockFileShouldNotHappen);
}
if (tmpIndex.Exists() && !tmpIndex.Delete())
{
throw new IOException(JGitText.Get().couldNotDeleteTemporaryIndexFileShouldNotHappen
);
}
}
}
/// <summary>Construct and write tree out of index.</summary>
/// <remarks>Construct and write tree out of index.</remarks>
/// <returns>SHA-1 of the constructed tree</returns>
/// <exception cref="System.IO.IOException">System.IO.IOException</exception>
public virtual ObjectId WriteTree()
{
CheckWriteOk();
ObjectInserter inserter = db.NewObjectInserter();
try
{
Tree current = new Tree(db);
Stack <Tree> trees = new Stack <Tree>();
trees.Push(current);
string[] prevName = new string[0];
foreach (GitIndex.Entry e in entries.Values)
{
if (e.GetStage() != 0)
{
continue;
}
string[] newName = SplitDirPath(e.GetName());
int c = LongestCommonPath(prevName, newName);
while (c < trees.Count - 1)
{
current.SetId(inserter.Insert(Constants.OBJ_TREE, current.Format()));
trees.Pop();
current = trees.IsEmpty() ? null : (Tree)trees.Peek();
}
while (trees.Count < newName.Length)
{
if (!current.ExistsTree(newName[trees.Count - 1]))
{
current = new Tree(current, Constants.Encode(newName[trees.Count - 1]));
current.GetParent().AddEntry(current);
trees.Push(current);
}
else
{
current = (Tree)current.FindTreeMember(newName[trees.Count - 1]);
trees.Push(current);
}
}
FileTreeEntry ne = new FileTreeEntry(current, e.sha1, Constants.Encode(newName[newName
.Length - 1]), (e.mode & FileMode.EXECUTABLE_FILE.GetBits()) == FileMode.EXECUTABLE_FILE
.GetBits());
current.AddEntry(ne);
}
while (!trees.IsEmpty())
{
current.SetId(inserter.Insert(Constants.OBJ_TREE, current.Format()));
trees.Pop();
if (!trees.IsEmpty())
{
current = trees.Peek();
}
}
inserter.Flush();
return(current.GetId());
}
finally
{
inserter.Release();
}
}
