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Revision 1684c1b219e02c91655ad929f752f4f864c72faf authored by brian m. carlson on 24 December 2014, 23:05:39 UTC, committed by Junio C Hamano on 29 December 2014, 17:57:55 UTC 
rev-list: add an option to mark fewer edges as uninteresting
 
In commit fbd4a70 (list-objects: mark more commits as edges in
mark_edges_uninteresting - 2013-08-16), we marked an increasing number
of edges uninteresting.  This change, and the subsequent change to make
this conditional on --objects-edge, are used by --thin to make much
smaller packs for shallow clones.

Unfortunately, they cause a significant performance regression when
pushing non-shallow clones with lots of refs (23.322 seconds vs.
4.785 seconds with 22400 refs).  Add an option to git rev-list,
--objects-edge-aggressive, that preserves this more aggressive behavior,
while leaving --objects-edge to provide more performant behavior.
Preserve the current behavior for the moment by using the aggressive
option.

Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
1 parent 8297643
Raw File
sha1-array.h 
#ifndef SHA1_ARRAY_H
#define SHA1_ARRAY_H

struct sha1_array {
	unsigned char (*sha1)[20];
	int nr;
	int alloc;
	int sorted;
};

#define SHA1_ARRAY_INIT { NULL, 0, 0, 0 }

void sha1_array_append(struct sha1_array *array, const unsigned char *sha1);
int sha1_array_lookup(struct sha1_array *array, const unsigned char *sha1);
void sha1_array_clear(struct sha1_array *array);

typedef void (*for_each_sha1_fn)(const unsigned char sha1[20],
				 void *data);
void sha1_array_for_each_unique(struct sha1_array *array,
				for_each_sha1_fn fn,
				void *data);

#endif /* SHA1_ARRAY_H */
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