Copying too slow

[Spiegel-Leser]

I accidentally backupped to a new folder, so all files are copied. This takes 5 hours exactly. When copying all files with robocopy, it takes ~30 minutes. So copying is much slower than strictly necessary.

Idea: If it's too difficult making your algorithm more efficient you could let it do all the hardlinks and then copy the remaining files with robocopy.

[asdfjkl]

I'll have a look, won't promise anything.

Background:
Currently using C# File.Copy which itself is a wrapper for Win32's CopyFile. Not impossible, but difficult to accelerate, cf. https://stackoverflow.com/questions/1246899/file-copy-vs-manual-filestream-write-for-copying-file/1247042#1247042

using robocopy is maybe an option, but unlikely - controlling and using an external process is difficult. Not in the case where everything works well, but for the case when there is an unexpected error... When in doubt, reliability and deterministic behaviour is always preferred to speed ... for a backup program...

I'll always accept well written merge requests of course :-)