public static HgFileCopyInfo ExtractFileCopyInfo(ref byte[] data)
{
if(data.Length <= 20 || data[0] != 1 || data[1] != 10) return null;
var metablockLength = Array.IndexOf(data, (byte)1, 1) + 1; // +1 for that \10 that goes after \1 we just found
var metadataLength = metablockLength - 4;
var metadata = new byte[metadataLength];
Buffer.BlockCopy(data, 2, metadata, 0, metadataLength);
var metadataText = Encoding.UTF8.GetString(metadata);
var metadataValues =
metadataText.Split((char)10).
Select(s => s.Split(':')).
ToDictionary(s => s[0].Trim(), s => s[1].Trim()).
DefaultableWith(k => "");
var copyInfo = new HgFileCopyInfo(new HgPath(metadataValues["copy"]), new HgNodeID(metadataValues["copyrev"]));
var dt = new byte[data.Length - metablockLength - 1];
Buffer.BlockCopy(data, metablockLength + 1, dt, 0, dt.Length);
data = dt;
return copyInfo;
}
public HgFile(HgPath path, HgRevlogEntry entry, byte[] data, HgFileCopyInfo copyInfo)
{
Path = path;
Entry = entry;
Data = data;
CopyInfo = copyInfo;
}
