public void Save(string pathToGgpkNew, Action <string> output)
{
if (output != null)
{
output("Saving GGPK..." + Environment.NewLine);
}
FileStream readStream;
FileStream writeStream;
using (readStream = File.OpenRead(_pathToGppk))
using (writeStream = File.OpenWrite(pathToGgpkNew))
{
var reader = new BinaryReader(readStream);
var writer = new BinaryWriter(writeStream);
var ggpkRecord = RecordOffsets[0] as GgpkRecord;
if (ggpkRecord == null)
{
throw new Exception("First record isn't GGPK record");
}
// Skip GGPK record for now
writer.Seek((int)ggpkRecord.Length, SeekOrigin.Begin);
// recursively write files and folders records
var changedOffsets = new Dictionary <long, long>();
var previousPercentComplete = 0.0;
var fileCopied = 0.0;
DirectoryTreeNode.TraverseTreePostorder(
DirectoryRoot,
dir => dir.Record.Write(writer, changedOffsets),
file =>
{
var data = file.ReadFileContent(reader);
file.Write(writer, changedOffsets);
writer.Write(data);
fileCopied++;
var percentComplete = fileCopied / _files.Count;
if (!(percentComplete - previousPercentComplete >= 0.05f))
{
return;
}
if (output != null)
{
output(String.Format(" {0:00.00}%", 100.0 * percentComplete));
}
previousPercentComplete = percentComplete;
});
if (output != null)
{
output(" 100%");
}
// write root directory
var rootDirectoryOffset = writer.BaseStream.Position;
DirectoryRoot.Record.Write(writer, changedOffsets);
// write single Free record
var firstFreeRecordOffset = writer.BaseStream.Position;
var freeRecord = new FreeRecord(16, firstFreeRecordOffset, 0);
freeRecord.Write(writer, null);
// write GGPK record
writer.Seek(0, SeekOrigin.Begin);
var ggpkRecordNew = new GgpkRecord(ggpkRecord.Length);
ggpkRecordNew.RecordOffsets[0] = rootDirectoryOffset;
ggpkRecordNew.RecordOffsets[1] = firstFreeRecordOffset;
ggpkRecordNew.Write(writer, changedOffsets);
if (output != null)
{
output("Finished !!!");
}
}
}
private void Write(BinaryWriter bw, FreeRecord freeRecord)
{
bw.BaseStream.Position = freeRecord.RecordBegin;
freeRecord.Write(bw, null);
}
