diff options
Diffstat (limited to 'midx.c')
| -rw-r--r-- | midx.c | 70 |
1 files changed, 46 insertions, 24 deletions
@@ -18,7 +18,6 @@ #define MIDX_BYTE_HASH_VERSION 5 #define MIDX_BYTE_NUM_CHUNKS 6 #define MIDX_BYTE_NUM_PACKS 8 -#define MIDX_HASH_VERSION 1 #define MIDX_HEADER_SIZE 12 #define MIDX_MIN_SIZE (MIDX_HEADER_SIZE + the_hash_algo->rawsz) @@ -37,6 +36,18 @@ #define PACK_EXPIRED UINT_MAX +static uint8_t oid_version(void) +{ + switch (hash_algo_by_ptr(the_hash_algo)) { + case GIT_HASH_SHA1: + return 1; + case GIT_HASH_SHA256: + return 2; + default: + die(_("invalid hash version")); + } +} + static char *get_midx_filename(const char *object_dir) { return xstrfmt("%s/pack/multi-pack-index", object_dir); @@ -91,8 +102,11 @@ struct multi_pack_index *load_multi_pack_index(const char *object_dir, int local m->version); hash_version = m->data[MIDX_BYTE_HASH_VERSION]; - if (hash_version != MIDX_HASH_VERSION) - die(_("hash version %u does not match"), hash_version); + if (hash_version != oid_version()) { + error(_("multi-pack-index hash version %u does not match version %u"), + hash_version, oid_version()); + goto cleanup_fail; + } m->hash_len = the_hash_algo->rawsz; m->num_chunks = m->data[MIDX_BYTE_NUM_CHUNKS]; @@ -397,8 +411,12 @@ int prepare_multi_pack_index_one(struct repository *r, const char *object_dir, i m = load_multi_pack_index(object_dir, local); if (m) { - m->next = r->objects->multi_pack_index; - r->objects->multi_pack_index = m; + struct multi_pack_index *mp = r->objects->multi_pack_index; + if (mp) { + m->next = mp->next; + mp->next = m; + } else + r->objects->multi_pack_index = m; return 1; } @@ -409,14 +427,11 @@ static size_t write_midx_header(struct hashfile *f, unsigned char num_chunks, uint32_t num_packs) { - unsigned char byte_values[4]; - hashwrite_be32(f, MIDX_SIGNATURE); - byte_values[0] = MIDX_VERSION; - byte_values[1] = MIDX_HASH_VERSION; - byte_values[2] = num_chunks; - byte_values[3] = 0; /* unused */ - hashwrite(f, byte_values, sizeof(byte_values)); + hashwrite_u8(f, MIDX_VERSION); + hashwrite_u8(f, oid_version()); + hashwrite_u8(f, num_chunks); + hashwrite_u8(f, 0); /* unused */ hashwrite_be32(f, num_packs); return MIDX_HEADER_SIZE; @@ -802,11 +817,9 @@ static int write_midx_internal(const char *object_dir, struct multi_pack_index * int result = 0; midx_name = get_midx_filename(object_dir); - if (safe_create_leading_directories(midx_name)) { - UNLEAK(midx_name); + if (safe_create_leading_directories(midx_name)) die_errno(_("unable to create leading directories of %s"), midx_name); - } if (m) packs.m = m; @@ -1046,10 +1059,8 @@ void clear_midx_file(struct repository *r) r->objects->multi_pack_index = NULL; } - if (remove_path(midx)) { - UNLEAK(midx); + if (remove_path(midx)) die(_("failed to clear multi-pack-index at %s"), midx); - } free(midx); } @@ -1100,8 +1111,17 @@ int verify_midx_file(struct repository *r, const char *object_dir, unsigned flag struct multi_pack_index *m = load_multi_pack_index(object_dir, 1); verify_midx_error = 0; - if (!m) - return 0; + if (!m) { + int result = 0; + struct stat sb; + char *filename = get_midx_filename(object_dir); + if (!stat(filename, &sb)) { + error(_("multi-pack-index file exists, but failed to parse")); + result = 1; + } + free(filename); + return result; + } if (flags & MIDX_PROGRESS) progress = start_delayed_progress(_("Looking for referenced packfiles"), @@ -1366,7 +1386,7 @@ static int fill_included_packs_batch(struct repository *r, free(pack_info); - if (total_size < batch_size || packs_to_repack < 2) + if (packs_to_repack < 2) return 1; return 0; @@ -1378,6 +1398,7 @@ int midx_repack(struct repository *r, const char *object_dir, size_t batch_size, uint32_t i; unsigned char *include_pack; struct child_process cmd = CHILD_PROCESS_INIT; + FILE *cmd_in; struct strbuf base_name = STRBUF_INIT; struct multi_pack_index *m = load_multi_pack_index(object_dir, 1); @@ -1430,6 +1451,8 @@ int midx_repack(struct repository *r, const char *object_dir, size_t batch_size, goto cleanup; } + cmd_in = xfdopen(cmd.in, "w"); + for (i = 0; i < m->num_objects; i++) { struct object_id oid; uint32_t pack_int_id = nth_midxed_pack_int_id(m, i); @@ -1438,10 +1461,9 @@ int midx_repack(struct repository *r, const char *object_dir, size_t batch_size, continue; nth_midxed_object_oid(&oid, m, i); - xwrite(cmd.in, oid_to_hex(&oid), the_hash_algo->hexsz); - xwrite(cmd.in, "\n", 1); + fprintf(cmd_in, "%s\n", oid_to_hex(&oid)); } - close(cmd.in); + fclose(cmd_in); if (finish_command(&cmd)) { error(_("could not finish pack-objects")); |