private bool OnFileBeginExtraction(VextractStatusData Status)
{
if (CancelPressed)
return true;
lock(lockFilesBufferObject)
{
//Log.AddLogText(Status.CurrentFile + "...");
//SetProgressValue(Status.PercentComplete);
filesBuffer += String.Format(formatStr,
Status.CurrentFile, Status.FilesTotal - Status.FilesDone, Environment.NewLine);
percentageValue = Status.PercentComplete;
}
return false;
}
/// <summary>
/// Extracts all files from the VPK files that match the given pattern.
/// </summary>
/// <param name="Pattern">The filename pattern to match and extract.</param>
/// <param name="OutputDirectory">The directory to extract the files to.</param>
/// <param name="Exemptions">A string array of patterns to exempt.</param>
/// <param name="SkeletonOnly">If true, creates directories instead of extracting files.</param>
/// <returns>The number of files extracted.</returns>
public int ExtractFiles(string Pattern, string OutputDirectory, string[] Exemptions, bool SkeletonOnly)
{
int filesExtracted = 0;
VPKIndex index;
VextractStatusData status = new VextractStatusData();
try
{
index = VPKIndex.Load();
}
catch (FileNotFoundException)
{
throw new Exceptions.VPKIndexNotFound();
}
VPKIndexEntry[] files = index.FindFiles(Pattern, Exemptions);
decimal length = Decimal.Round((decimal)files.Length, 0); // Used to avoid re-casting from int during the percentage calculations
int intLength = files.Length;
status.FilesTotal = intLength;
for(int i = 0; i < intLength; i++)
{
VPKIndexEntry currentEntry = files[i];
if (OnFileBeginExtraction != null)
{
// Determine percentage complete
status.PercentComplete = (int)Decimal.Round((decimal)i / length * 100M, 0);
status.FilesDone = filesExtracted;
status.CurrentFile = currentEntry.FileName;
bool cancel = OnFileBeginExtraction(status);
if (cancel)
break;
}
// Attempt to open output file.
string directoryPart = getDirectory(currentEntry.FileName);
string destDirectory = String.Format("{0}\\{1}", OutputDirectory, directoryPart)
.Replace("/", "\\");
if (Directory.Exists(destDirectory) == false)
{
// Attempt to create the directory.
try
{
Directory.CreateDirectory(destDirectory);
}
catch
{
// Creation failed, skip file
continue;
}
}
if (SkeletonOnly == false)
{
byte[] fileContents = currentEntry.GetContents();
if (fileContents.Length == 0)
continue;
string outputFile = String.Format("{0}\\{1}", OutputDirectory, currentEntry.FileName)
.Replace("/", "\\");
if (Directory.Exists(outputFile))
{
// The destination was incorrectly created as a directory. Delete it.
if (Directory.GetFiles(outputFile).Length == 0)
Directory.Delete(outputFile);
}
File.WriteAllBytes(outputFile, fileContents);
filesExtracted++;
}
}
VPKIndexEntry.Close();
return filesExtracted;
}
