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From: Ramsay Jones <ramsay@ramsay1•demon.co.uk>
To: Junio C Hamano <gitster@pobox•com>
Cc: Johannes Sixt <j6t@kdbg•org>, GIT Mailing-list <git@vger•kernel.org>
Subject: [PATCH] compat/mingw.h: Set S_ISUID to prevent a fast-import test failure
Date: Tue, 17 Apr 2012 19:00:04 +0100	[thread overview]
Message-ID: <4F8DAFA4.2050502@ramsay1.demon.co.uk> (raw)


The current t9300-fast-import.sh test number 62 ("L: nested tree
copy does not corrupt deltas") was introduced in commit 9a0edb79
("fast-import: add a test for tree delta base corruption",
15-08-2011). A fix for the demonstrated problem was introduced
by commit 8fb3ad76 ("fast-import: prevent producing bad delta",
15-08-2011). However, this fix didn't work on MinGW and so this
test has always failed on MinGW.

Part of the solution in commit 8fb3ad76 was to add an NO_DELTA
preprocessor constant which was defined as follows:

  +/*
  + * We abuse the setuid bit on directories to mean "do not delta".
  + */
  +#define NO_DELTA S_ISUID
  +

Unfortunately, the S_ISUID constant on MinGW is defined as zero.

In order to fix the problem, we simply alter the definition of
S_ISUID in the mingw header file to a more appropriate value.
Also, we take the opportunity to similarly define S_ISGID and
S_ISVTX.

Signed-off-by: Ramsay Jones <ramsay@ramsay1•demon.co.uk>
---
 compat/mingw.h |    7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/compat/mingw.h b/compat/mingw.h
index ef5b150..61a6521 100644
--- a/compat/mingw.h
+++ b/compat/mingw.h
@@ -22,9 +22,10 @@ typedef int socklen_t;
 #define S_IWOTH 0
 #define S_IXOTH 0
 #define S_IRWXO (S_IROTH | S_IWOTH | S_IXOTH)
-#define S_ISUID 0
-#define S_ISGID 0
-#define S_ISVTX 0
+
+#define S_ISUID 0004000
+#define S_ISGID 0002000
+#define S_ISVTX 0001000
 
 #define WIFEXITED(x) 1
 #define WIFSIGNALED(x) 0
-- 
1.7.10

             reply	other threads:[~2012-04-17 18:51 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-04-17 18:00 Ramsay Jones [this message]
2012-04-18 20:22 ` [PATCH] compat/mingw.h: Set S_ISUID to prevent a fast-import test failure Johannes Sixt
2012-05-01 14:30   ` Junio C Hamano
2012-05-01 19:44     ` Johannes Sixt

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