Re: FW: Windows. Git, and Dedupe

Am 20.03.2013 21:43, schrieb Josh Rowe:

If you have Win8 or HyperV 2012, I can ship you a small NTFS .vhd
with some deduped files.  I'm not sure if that will be readable, but
I would hazard a guess that it would be.  It definitely will not be
readable on Win7.

It would be nice if you could upload it to an FTP server or website and 
post a public link so that the real git-on-Windows developers can get it 
as well.  You can also send it to me personally and I'll see if I can 
mount it using Windows 8 and where I get from there.  In any case, 
please make sure there's no sensitive or private data in the VHD file.

How big is it after compression using (preferably) 7-Zip or ZIP?

I'm using:

PS C:\> git version git version 1.8.0.msysgit.0

That means compat/mingw.c is directly relevant to you; more about MinGW, 
MSys and git at http://msysgit.github.com/ and http://mingw.org/.

The file sizes show up as their original size with Windows tools
(powershell, Win32, cmd, .Net, etc).  git ls-tree -r HEAD does not
show that hash code for files that are not intentionally empty.

So we can likely (hopefully) get the sizes of deduped files with the 
same API calls as for regular ones.  Which makes me even more puzzled 
over the question of why git makes a difference between the two kinds.

René

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