Revision 3ba2e8653c88d220b0b22f35260477bb0afa7d7b authored by Johannes Sixt on 16 March 2011, 08:18:49 UTC, committed by Junio C Hamano on 17 March 2011, 21:54:11 UTC
'git stash create' must operate with a temporary index. For this purpose, it used 'cp -p' to create a copy. -p is needed to preserve the timestamp of the index file. Now Jakob Pfender reported a certain combination of a Linux NFS client, OpenBSD NFS server, and cp implementation where this operation failed. Luckily, the first operation in git-stash after copying the index is to call 'git read-tree'. Therefore, use --index-output instead of 'cp -p' to write the copy of the index. --index-output requires that the specified file is on the same volume as the source index, so that the lock file can be rename()d. For this reason, the name of the temporary index is constructed in a way different from the other temporary files. The code path of 'stash -p' also needs a temporary index, but we do not use the new name because it does not depend on the same precondition as --index-output. Signed-off-by: Johannes Sixt <j6t@kdbg.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
1 parent 23a32ff
aclocal.m4
dnl Check for socklen_t: historically on BSD it is an int, and in
dnl POSIX 1g it is a type of its own, but some platforms use different
dnl types for the argument to getsockopt, getpeername, etc. So we
dnl have to test to find something that will work.
AC_DEFUN([TYPE_SOCKLEN_T],
[
AC_CHECK_TYPE([socklen_t], ,[
AC_MSG_CHECKING([for socklen_t equivalent])
AC_CACHE_VAL([git_cv_socklen_t_equiv],
[
# Systems have either "struct sockaddr *" or
# "void *" as the second argument to getpeername
git_cv_socklen_t_equiv=
for arg2 in "struct sockaddr" void; do
for t in int size_t unsigned long "unsigned long"; do
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([
#include <sys/types.h>
#include <sys/socket.h>
int getpeername (int, $arg2 *, $t *);
],[
$t len;
getpeername(0,0,&len);
])],[
git_cv_socklen_t_equiv="$t"
break 2
])
done
done
if test "x$git_cv_socklen_t_equiv" = x; then
AC_MSG_ERROR([Cannot find a type to use in place of socklen_t])
fi
])
AC_MSG_RESULT($git_cv_socklen_t_equiv)
AC_DEFINE_UNQUOTED(socklen_t, $git_cv_socklen_t_equiv,
[type to use in place of socklen_t if not defined])],
[#include <sys/types.h>
#include <sys/socket.h>])
])
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