git-commit-vandalism/t/helper/test-bloom.c
Elijah Newren 61a7b98264 treewide: remove cache.h inclusion due to setup.h changes
By moving several declarations to setup.h, the previous patch made it
possible to remove the include of cache.h in several source files.  Do
so.

Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-03-21 10:56:54 -07:00

101 lines
2.3 KiB
C

#include "test-tool.h"
#include "bloom.h"
#include "hex.h"
#include "commit.h"
#include "setup.h"
static struct bloom_filter_settings settings = DEFAULT_BLOOM_FILTER_SETTINGS;
static void add_string_to_filter(const char *data, struct bloom_filter *filter) {
struct bloom_key key;
int i;
fill_bloom_key(data, strlen(data), &key, &settings);
printf("Hashes:");
for (i = 0; i < settings.num_hashes; i++){
printf("0x%08x|", key.hashes[i]);
}
printf("\n");
add_key_to_filter(&key, filter, &settings);
clear_bloom_key(&key);
}
static void print_bloom_filter(struct bloom_filter *filter) {
int i;
if (!filter) {
printf("No filter.\n");
return;
}
printf("Filter_Length:%d\n", (int)filter->len);
printf("Filter_Data:");
for (i = 0; i < filter->len; i++) {
printf("%02x|", filter->data[i]);
}
printf("\n");
}
static void get_bloom_filter_for_commit(const struct object_id *commit_oid)
{
struct commit *c;
struct bloom_filter *filter;
setup_git_directory();
c = lookup_commit(the_repository, commit_oid);
filter = get_or_compute_bloom_filter(the_repository, c, 1,
&settings,
NULL);
print_bloom_filter(filter);
}
static const char *bloom_usage = "\n"
" test-tool bloom get_murmur3 <string>\n"
" test-tool bloom generate_filter <string> [<string>...]\n"
" test-tool bloom get_filter_for_commit <commit-hex>\n";
int cmd__bloom(int argc, const char **argv)
{
setup_git_directory();
if (argc < 2)
usage(bloom_usage);
if (!strcmp(argv[1], "get_murmur3")) {
uint32_t hashed;
if (argc < 3)
usage(bloom_usage);
hashed = murmur3_seeded(0, argv[2], strlen(argv[2]));
printf("Murmur3 Hash with seed=0:0x%08x\n", hashed);
}
if (!strcmp(argv[1], "generate_filter")) {
struct bloom_filter filter;
int i = 2;
filter.len = (settings.bits_per_entry + BITS_PER_WORD - 1) / BITS_PER_WORD;
CALLOC_ARRAY(filter.data, filter.len);
if (argc - 1 < i)
usage(bloom_usage);
while (argv[i]) {
add_string_to_filter(argv[i], &filter);
i++;
}
print_bloom_filter(&filter);
free(filter.data);
}
if (!strcmp(argv[1], "get_filter_for_commit")) {
struct object_id oid;
const char *end;
if (argc < 3)
usage(bloom_usage);
if (parse_oid_hex(argv[2], &oid, &end))
die("cannot parse oid '%s'", argv[2]);
init_bloom_filters();
get_bloom_filter_for_commit(&oid);
}
return 0;
}