public static async Task Merge(MergeParams p)
{
if (File.Exists(p.DestImg))
{
File.Delete(p.DestImg);
}
if (p.BuiltInImg)
{
File.WriteAllBytes(p.DestImg, Properties.Resources.pixel);
}
else
{
File.Copy(p.SourceImg, p.DestImg);
}
var dir = Directory.Exists(p.DataSource);
if (dir)
{
await MergeDirectory(p);
}
else
{
var fn = Path.GetExtension(p.DataSource);
await((new[] {
".rar", ".zip", ".jar", ".7z"
}.Any(a => a == fn)) ? MergeFile(p) : MergeArchive(p));
}
}
private static async Task MergeFile(MergeParams p)
{
var zf = new FastZip();
using (var s = File.OpenWrite(p.DestImg)) {
s.Seek(0, SeekOrigin.End);
zf.CreateZip(s, Path.GetDirectoryName(p.DataSource), false, Path.GetFileName(p.DataSource), "");
}
}
private static async Task MergeDirectory(MergeParams p)
{
using (var s = File.OpenWrite(p.DestImg)) {
s.Seek(0, SeekOrigin.End);
var zf = new FastZip {
CreateEmptyDirectories = true
};
zf.CreateZip(s, Path.GetDirectoryName(p.DataSource), true, "*", Path.GetFileName(p.DataSource));
}
}
private static async Task MergeArchive(MergeParams p)
{
using (var s = File.OpenRead(p.DataSource)) {
var buf = new byte[s.Length];
await s.ReadAsync(buf, 0, buf.Length);
using (var s2 = File.OpenWrite(p.DestImg)) {
s2.Seek(0, SeekOrigin.End);
await s2.WriteAsync(buf, 0, buf.Length);
}
}
}
