#include "git-compat-util.h" #include "bloom.h" #include "test-tool.h" #include "commit.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); } 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 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); } 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; }