From mboxrd@z Thu Jan  1 00:00:00 1970
From: fork0@t-online.de (Alex Riesen)
Subject: Re: comparing file contents in is_exact_match?
Date: Mon, 17 Jul 2006 00:36:07 +0200
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References: <20060706055729.GA12512@admingilde.org> <87k66p8jee.fsf@mid.deneb.enyo.de> <Pine.LNX.4.63.0607080450100.29667@wbgn013.biozentrum.uni-wuerzburg.de> <87fyh1ncm0.fsf@mid.deneb.enyo.de> <f36b08ee0607160803s27dac6a6k476e3dd7742346fc@mail.gmail.com>
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Yakov Lerner, Sun, Jul 16, 2006 17:03:49 +0200:
> Cygwin has mmap. But cygwin's mmap() not good enough for git.
> What happens is that git does rename() when target file has active mmap().
> In cygwin, this makes rename() to fail. This is what makes cygwin's
> mmap unusable for git. (BTW for read-only git access, mmap() will work
> on cygwin, for what I saw. But attempts to modify index will break).

It is not Cygwin really. It's windows. You can't rename or delete an
open or mmapped file in that thing.