Revision 82b7e651990dce7016a903cb020e3dc0eba2ecfe authored by Junio C Hamano on 10 March 2015, 20:52:39 UTC, committed by Junio C Hamano on 10 March 2015, 20:52:40 UTC
Various issues around "reflog expire", e.g. using --updateref when expiring a reflog for a symbolic reference, have been corrected and/or made saner. * mh/expire-updateref-fixes: reflog_expire(): never update a reference to null_sha1 reflog_expire(): ignore --updateref for symbolic references reflog: improve and update documentation struct ref_lock: delete the force_write member lock_ref_sha1_basic(): do not set force_write for missing references write_ref_sha1(): move write elision test to callers write_ref_sha1(): remove check for lock == NULL
sha1-array.c
#include "cache.h"
#include "sha1-array.h"
#include "sha1-lookup.h"
void sha1_array_append(struct sha1_array *array, const unsigned char *sha1)
{
ALLOC_GROW(array->sha1, array->nr + 1, array->alloc);
hashcpy(array->sha1[array->nr++], sha1);
array->sorted = 0;
}
static int void_hashcmp(const void *a, const void *b)
{
return hashcmp(a, b);
}
static void sha1_array_sort(struct sha1_array *array)
{
qsort(array->sha1, array->nr, sizeof(*array->sha1), void_hashcmp);
array->sorted = 1;
}
static const unsigned char *sha1_access(size_t index, void *table)
{
unsigned char (*array)[20] = table;
return array[index];
}
int sha1_array_lookup(struct sha1_array *array, const unsigned char *sha1)
{
if (!array->sorted)
sha1_array_sort(array);
return sha1_pos(sha1, array->sha1, array->nr, sha1_access);
}
void sha1_array_clear(struct sha1_array *array)
{
free(array->sha1);
array->sha1 = NULL;
array->nr = 0;
array->alloc = 0;
array->sorted = 0;
}
void sha1_array_for_each_unique(struct sha1_array *array,
for_each_sha1_fn fn,
void *data)
{
int i;
if (!array->sorted)
sha1_array_sort(array);
for (i = 0; i < array->nr; i++) {
if (i > 0 && !hashcmp(array->sha1[i], array->sha1[i-1]))
continue;
fn(array->sha1[i], data);
}
}
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