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Remove pack file handling dependency from wrapper.o

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As v1.7.0-rc0~43 (slim down "git show-index", 2010-01-21) explains,
use of xmalloc() brings in a dependency on zlib, the sha1 lib, and the
rest of git's object file access machinery via try_to_free_pack_memory.
That is overkill when xmalloc is just being used as a convenience
wrapper to exit when no memory is available.

So defer setting try_to_free_pack_memory as try_to_free_routine until
the first packfile is opened in add_packed_git().

After this change, a simple program using xmalloc() and no other
functions will not pull in any code from libgit.a aside from wrapper.o
and usage.o.

Improved-by: René Scharfe <rene.scharfe@lsrfire.ath.cx>
Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Jonathan Nieder
2010-11-06 14:00:38 -05:00
committed by Junio C Hamano
parent bc9b21755e
commit e050029385
2 changed files with 13 additions and 3 deletions
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5
wrapper.c
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@ -3,12 +3,11 @@
*/
#include "cache.h"
static void try_to_free_builtin(size_t size)
static void do_nothing(size_t size)
{
release_pack_memory(size, -1);
}
static void (*try_to_free_routine)(size_t size) = try_to_free_builtin;
static void (*try_to_free_routine)(size_t size) = do_nothing;
try_to_free_t set_try_to_free_routine(try_to_free_t routine)
{