private static void BuildBsaPatch(string inBsaName, string outBsaName)
{
string outBSAFile = Path.ChangeExtension(outBsaName, ".bsa");
string outBSAPath = Path.Combine(_dirTTWMain, outBSAFile);
string inBSAFile = Path.ChangeExtension(inBsaName, ".bsa");
string inBSAPath = Path.Combine(_dirFO3Data, inBSAFile);
var renameDict = BuildRenameDict(outBsaName);
Debug.Assert(renameDict != null);
var patPath = Path.Combine(OutDir, Path.ChangeExtension(outBsaName, ".pat"));
if (File.Exists(patPath))
{
return;
}
var prefix = Path.Combine(InDir, "TTW Patches", outBsaName);
using (var inBSA = new BSA(inBSAPath))
using (var outBSA = new BSA(outBSAPath))
{
BsaDiff
.CreateRenameQuery(inBSA, renameDict)
.ToList(); // execute query
var oldFiles = inBSA.SelectMany(folder => folder).ToList();
var newFiles = outBSA.SelectMany(folder => folder).ToList();
var newChkDict = FileValidation.FromBSA(outBSA);
var joinedPatches = from patKvp in newChkDict
join newBsaFile in newFiles on patKvp.Key equals newBsaFile.Filename
select new
{
newBsaFile,
file = patKvp.Key,
patch = patKvp.Value
};
var allJoinedPatches = joinedPatches.ToList();
var patchDict = new PatchDict(allJoinedPatches.Count);
foreach (var join in allJoinedPatches)
{
var oldBsaFile = oldFiles.SingleOrDefault(file => file.Filename == join.file);
Debug.Assert(oldBsaFile != null, "File not found: " + join.file);
var oldChk = FileValidation.FromBSAFile(oldBsaFile);
var newChk = join.patch;
var oldFilename = oldBsaFile.Filename;
if (oldFilename.StartsWith(TaleOfTwoWastelands.Properties.Resources.VoicePrefix))
{
patchDict.Add(join.file, new Patch(newChk, null));
continue;
}
var patches = new List <PatchInfo>();
var md5OldStr = Util.GetMD5String(oldBsaFile.GetContents(true));
var md5NewStr = Util.GetMD5String(join.newBsaFile.GetContents(true));
var diffPath = Path.Combine(prefix, oldFilename + "." + md5OldStr + "." + md5NewStr + ".diff");
var usedPath = Path.ChangeExtension(diffPath, ".used");
if (File.Exists(usedPath))
{
File.Move(usedPath, diffPath); //fixes moronic things
}
var altDiffs = Util.FindAlternateVersions(diffPath);
if (altDiffs != null)
{
foreach (var altDiff in altDiffs)
{
var altDiffBytes = GetDiff(altDiff.Item1, Diff.SIG_LZDIFF41);
patches.Add(new PatchInfo
{
Metadata = new FileValidation(altDiff.Item2, 0, FileValidation.ChecksumType.Md5),
Data = altDiffBytes
});
}
}
if (newChk != oldChk)
{
byte[] diffData = GetDiff(diffPath, Diff.SIG_LZDIFF41);
var patchInfo = PatchInfo.FromOldDiff(diffData, oldChk);
Debug.Assert(patchInfo.Data != null);
patches.Add(patchInfo);
}
patchDict.Add(join.file, new Patch(newChk, patches.ToArray()));
}
using (var stream = File.OpenWrite(patPath))
patchDict.WriteAll(stream);
}
}
