Re: git on Cygwin: Not a valid object name HEAD

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From: Shawn O. Pearce
Date: Tuesday, August 7, 2007 - 7:36 am

Sebastian Schuberth <sschuberth@gmail.com> wrote:

Actually we never use fopen() when we care about the data (and we
always care about object data and working tree data).  We always
use open(2) and use system call IO directly to perform all reads
and writes.  fopen() is only used on trivial things, like say the
.git/config file.

Now on a normal UNIX system open(2) *always* by definition does
binary IO.  But Cygwin's text mount option tries to make UNIX
programs DOS-friendly by making all files treated as text, even if
it supposedly doing binary IO via open(2).

I think its a mis-feature of Cygwin.  Git has no way (that I know
of) to defend itself from this, other than to tell the user to make
sure they only store a Git repository in a location that is mounted
with the binary flag.

-- 
Shawn.
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Messages in current thread:
git on Cygwin: Not a valid object name HEAD, Sebastian Schuberth, (Tue Aug 7, 2:02 am)
Re: git on Cygwin: Not a valid object name HEAD, Johannes Schindelin, (Tue Aug 7, 4:58 am)
Re: git on Cygwin: Not a valid object name HEAD, Sebastian Schuberth, (Tue Aug 7, 5:13 am)
Re: git on Cygwin: Not a valid object name HEAD, Sebastian Schuberth, (Tue Aug 7, 6:18 am)
Re: git on Cygwin: Not a valid object name HEAD, Shawn O. Pearce, (Tue Aug 7, 7:36 am)
Re: git on Cygwin: Not a valid object name HEAD, Brian Downing, (Tue Aug 7, 7:58 am)
Re: git on Cygwin: Not a valid object name HEAD, Sebastian Schuberth, (Tue Aug 7, 8:27 am)
Re: git on Cygwin: Not a valid object name HEAD, Mark Levedahl, (Tue Aug 7, 8:29 am)
Re: git on Cygwin: Not a valid object name HEAD, Steffen Prohaska, (Tue Aug 7, 10:11 am)
Re: git on Cygwin: Not a valid object name HEAD, Mark Levedahl, (Tue Aug 7, 10:42 am)
Re: git on Cygwin: Not a valid object name HEAD, Steffen Prohaska, (Tue Aug 7, 12:41 pm)
Re: git on Cygwin: Not a valid object name HEAD, Linus Torvalds, (Tue Aug 7, 2:44 pm)
Re: git on Cygwin: Not a valid object name HEAD, Junio C Hamano, (Tue Aug 7, 3:26 pm)
Re: git on Cygwin: Not a valid object name HEAD, Junio C Hamano, (Tue Aug 7, 3:28 pm)
Re: git on Cygwin: Not a valid object name HEAD, Steffen Prohaska, (Tue Aug 7, 3:46 pm)
Re: git on Cygwin: Not a valid object name HEAD, Steffen Prohaska, (Tue Aug 7, 4:20 pm)
Re: git on Cygwin: Not a valid object name HEAD, Linus Torvalds, (Tue Aug 7, 8:47 pm)
Re: git on Cygwin: Not a valid object name HEAD, Brian Downing, (Tue Aug 7, 9:25 pm)
Re: [PATCH] tests: added d2u to have unix style testfiles ..., Steffen Prohaska, (Tue Aug 7, 10:00 pm)
Re: git on Cygwin: Not a valid object name HEAD, Steffen Prohaska, (Tue Aug 7, 10:46 pm)
Re: git on Cygwin: Not a valid object name HEAD, Sebastian Schuberth, (Wed Aug 8, 12:55 am)
Re: git on Cygwin: Not a valid object name HEAD, Mark Levedahl, (Wed Aug 8, 6:50 am)
Re: git on Cygwin: Not a valid object name HEAD, Steffen Prohaska, (Wed Aug 8, 8:51 am)
Re: git on Cygwin: Not a valid object name HEAD, Mark Levedahl, (Wed Aug 8, 9:41 am)
Re: git on Cygwin: Not a valid object name HEAD, Johannes Schindelin, (Wed Aug 8, 10:20 am)
Re: git on Cygwin: Not a valid object name HEAD, Steffen Prohaska, (Wed Aug 8, 12:37 pm)
Re: git on Cygwin: Not a valid object name HEAD, Steffen Prohaska, (Wed Aug 8, 1:13 pm)
Re: git on Cygwin: Not a valid object name HEAD, Steffen Prohaska, (Wed Aug 8, 1:36 pm)
Re: git on Cygwin: Not a valid object name HEAD, Johannes Schindelin, (Wed Aug 8, 2:30 pm)
Re: git on Cygwin: Not a valid object name HEAD, Mark Levedahl, (Wed Aug 8, 4:07 pm)
Re: git on Cygwin: Not a valid object name HEAD, Steffen Prohaska, (Wed Aug 8, 9:59 pm)
Re: git on Cygwin: Not a valid object name HEAD, Marius Storm-Olsen, (Wed Aug 8, 11:01 pm)
Re: git on Cygwin: Not a valid object name HEAD, Steffen Prohaska, (Wed Aug 8, 11:20 pm)
Re: git on Cygwin: Not a valid object name HEAD, Steffen Prohaska, (Wed Aug 8, 11:38 pm)
Re: git on Cygwin: Not a valid object name HEAD, Marius Storm-Olsen, (Wed Aug 8, 11:47 pm)
Re: git on Cygwin: Not a valid object name HEAD, Johannes Schindelin, (Thu Aug 9, 1:50 am)
Re: git on Cygwin: Not a valid object name HEAD, Marius Storm-Olsen, (Thu Aug 9, 2:00 am)
Re: git on Cygwin: Not a valid object name HEAD, Steffen Prohaska, (Thu Aug 9, 3:33 am)
Re: git on Cygwin: Not a valid object name HEAD, Torgil Svensson, (Thu Aug 9, 11:07 pm)
Re: git on Cygwin: Not a valid object name HEAD, Steffen Prohaska, (Fri Aug 10, 12:19 am)
Re: git on Cygwin: Not a valid object name HEAD, Johannes Schindelin, (Fri Aug 10, 3:30 am)
Re: git on Cygwin: Not a valid object name HEAD, Steffen Prohaska, (Fri Aug 10, 4:14 am)
Re: git on Cygwin: Not a valid object name HEAD, Torgil Svensson, (Fri Aug 10, 3:31 pm)
Re: git on Cygwin: Not a valid object name HEAD, Steffen Prohaska, (Fri Aug 10, 5:43 pm)
Re: git on Cygwin: Not a valid object name HEAD, Johannes Schindelin, (Mon Aug 13, 3:50 am)
Re: git on Cygwin: Not a valid object name HEAD, Torgil Svensson, (Tue Aug 14, 5:04 pm)
Re: git on Cygwin: Not a valid object name HEAD, Steffen Prohaska, (Tue Aug 14, 10:22 pm)
Re: git on Cygwin: Not a valid object name HEAD, David Kastrup, (Tue Aug 14, 10:30 pm)
Re: git on Cygwin: Not a valid object name HEAD, Steffen Prohaska, (Tue Aug 14, 10:43 pm)
Re: git on Cygwin: Not a valid object name HEAD, David Kastrup, (Tue Aug 14, 11:59 pm)