git

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#define USE_THE_REPOSITORY_VARIABLE
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#include "git-compat-util.h"
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#include "oid-array.h"
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#include "hash-lookup.h"
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void oid_array_append(struct oid_array *array, const struct object_id *oid)
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{
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	ALLOC_GROW(array->oid, array->nr + 1, array->alloc);
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	oidcpy(&array->oid[array->nr++], oid);
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	if (!oid->algo)
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		oid_set_algo(&array->oid[array->nr - 1], the_hash_algo);
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	array->sorted = 0;
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}
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static int void_hashcmp(const void *va, const void *vb)
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{
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	const struct object_id *a = va, *b = vb;
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	int ret;
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	if (a->algo == b->algo)
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		ret = oidcmp(a, b);
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	else
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		ret = a->algo > b->algo ? 1 : -1;
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	return ret;
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}
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void oid_array_sort(struct oid_array *array)
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{
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	if (array->sorted)
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		return;
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	QSORT(array->oid, array->nr, void_hashcmp);
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	array->sorted = 1;
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}
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static const struct object_id *oid_access(size_t index, const void *table)
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{
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	const struct object_id *array = table;
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	return &array[index];
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}
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int oid_array_lookup(struct oid_array *array, const struct object_id *oid)
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{
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	oid_array_sort(array);
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	return oid_pos(oid, array->oid, array->nr, oid_access);
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}
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void oid_array_clear(struct oid_array *array)
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{
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	FREE_AND_NULL(array->oid);
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	array->nr = 0;
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	array->alloc = 0;
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	array->sorted = 0;
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}
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int oid_array_for_each(struct oid_array *array,
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		       for_each_oid_fn fn,
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		       void *data)
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{
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	size_t i;
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	/* No oid_array_sort() here! See oid-array.h */
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	for (i = 0; i < array->nr; i++) {
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		int ret = fn(array->oid + i, data);
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		if (ret)
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			return ret;
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	}
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	return 0;
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}
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int oid_array_for_each_unique(struct oid_array *array,
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			      for_each_oid_fn fn,
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			      void *data)
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{
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	size_t i;
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	oid_array_sort(array);
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	for (i = 0; i < array->nr; i = oid_array_next_unique(array, i)) {
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		int ret = fn(array->oid + i, data);
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		if (ret)
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			return ret;
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	}
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	return 0;
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}
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void oid_array_filter(struct oid_array *array,
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		      for_each_oid_fn want,
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		      void *cb_data)
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{
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	size_t nr = array->nr, src, dst;
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	struct object_id *oids = array->oid;
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	for (src = dst = 0; src < nr; src++) {
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		if (want(&oids[src], cb_data)) {
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			if (src != dst)
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				oidcpy(&oids[dst], &oids[src]);
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			dst++;
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		}
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	}
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	array->nr = dst;
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}
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