private void WriteAllEntries(uint version)
{
try
{
using (Stream indexStream = new FileStream(this.indexLockPath, FileMode.Create, FileAccess.Write, FileShare.None))
using (BinaryWriter writer = new BinaryWriter(indexStream))
{
writer.Write(IndexHeader);
writer.Write(EndianHelper.Swap(version));
writer.Write((uint)0); // Number of entries placeholder
uint lastStringLength = 0;
LsTreeEntry entry;
while (this.entryQueue.TryTake(out entry, Timeout.Infinite))
{
this.WriteEntry(writer, version, entry.Sha, entry.Filename, ref lastStringLength);
}
// Update entry count
writer.BaseStream.Position = EntryCountOffset;
writer.Write(EndianHelper.Swap(this.entryCount));
writer.Flush();
}
this.AppendIndexSha();
this.ReplaceExistingIndex();
}
catch (Exception e)
{
this.tracer.RelatedError("Failed to generate index: {0}", e.ToString());
this.HasFailures = true;
}
}
private void WriteEntry(BinaryWriter writer, uint version, string sha, string filename, ref uint lastStringLength)
{
long startPosition = writer.BaseStream.Position;
this.entryCount++;
writer.Write(EntryHeader, 0, EntryHeader.Length);
writer.Write(SHA1Util.BytesFromHexString(sha));
byte[] filenameBytes = Encoding.UTF8.GetBytes(filename);
ushort flags = (ushort)(filenameBytes.Length & 0xFFF);
writer.Write(EndianHelper.Swap(flags));
if (version >= 4)
{
this.WriteReplaceLength(writer, lastStringLength);
lastStringLength = (uint)filenameBytes.Length;
}
writer.Write(filenameBytes);
writer.Flush();
long endPosition = writer.BaseStream.Position;
// Version 4 requires a nul-terminated string.
int numPaddingBytes = 1;
if (version < 4)
{
// Version 2-3 has between 1 and 8 padding bytes including nul-terminator.
numPaddingBytes = 8 - ((int)(endPosition - startPosition) % 8);
if (numPaddingBytes == 0)
{
numPaddingBytes = 8;
}
}
writer.Write(PaddingBytes, 0, numPaddingBytes);
writer.Flush();
}