private static bool PackageDiff(string file_a, string file_b)
{
var a = new Package();
var b = new Package();
if (a.TryOpen(file_a) && b.TryOpen(file_b))
{
if (a.header.Count != b.header.Count)
return false;
int count = a.header.Count;
for (int i = 0; i < count; i++)
{
if (a.header[i].Item1 != b.header[i].Item1 || // file name
a.header[i].Item2 != b.header[i].Item2 || // file offset
a.header[i].Item3 != b.header[i].Item3) // file length
return false;
}
using (var sw = new StreamWriter(file_b + "_patch.txt"))
{
for (int i = 0; i < count; i++)
{
var ba = a.blocks[i];
var bb = b.blocks[i];
var dataend = ba.Length - 2; // ignore CRC at end of block
CompareBlock(ba, bb, i, dataend, sw);
}
}
return true;
}
return false;
}