13 #include "streaming.h"
14 #include "thread-utils.h"
16 #include "object-store.h"
17 #include "promisor-remote.h"
19 static const char index_pack_usage[] =
20 "git index-pack [-v] [-o <index-file>] [--keep | --keep=<msg>] [--verify] [--strict] (<pack-file> | --stdin [--fix-thin] [<pack-file>])";
23 struct pack_idx_entry idx;
25 unsigned char hdr_size;
27 signed char real_type;
36 struct base_data *base;
37 struct base_data *child;
38 struct object_entry *obj;
41 int ref_first, ref_last;
42 int ofs_first, ofs_last;
47 struct base_data *base_cache;
48 size_t base_cache_used;
52 /* Remember to update object flag allocation in object.h */
53 #define FLAG_LINK (1u<<20)
54 #define FLAG_CHECKED (1u<<21)
56 struct ofs_delta_entry {
61 struct ref_delta_entry {
66 static struct object_entry *objects;
67 static struct object_stat *obj_stat;
68 static struct ofs_delta_entry *ofs_deltas;
69 static struct ref_delta_entry *ref_deltas;
70 static struct thread_local nothread_data;
71 static int nr_objects;
72 static int nr_ofs_deltas;
73 static int nr_ref_deltas;
74 static int ref_deltas_alloc;
75 static int nr_resolved_deltas;
76 static int nr_threads;
78 static int from_stdin;
80 static int do_fsck_object;
81 static struct fsck_options fsck_options = FSCK_OPTIONS_STRICT;
83 static int show_resolving_progress;
85 static int check_self_contained_and_connected;
87 static struct progress *progress;
89 /* We always read in 4kB chunks. */
90 static unsigned char input_buffer[4096];
91 static unsigned int input_offset, input_len;
92 static off_t consumed_bytes;
93 static off_t max_input_size;
94 static unsigned deepest_delta;
95 static git_hash_ctx input_ctx;
96 static uint32_t input_crc32;
97 static int input_fd, output_fd;
98 static const char *curr_pack;
100 static struct thread_local *thread_data;
101 static int nr_dispatched;
102 static int threads_active;
104 static pthread_mutex_t read_mutex;
105 #define read_lock() lock_mutex(&read_mutex)
106 #define read_unlock() unlock_mutex(&read_mutex)
108 static pthread_mutex_t counter_mutex;
109 #define counter_lock() lock_mutex(&counter_mutex)
110 #define counter_unlock() unlock_mutex(&counter_mutex)
112 static pthread_mutex_t work_mutex;
113 #define work_lock() lock_mutex(&work_mutex)
114 #define work_unlock() unlock_mutex(&work_mutex)
116 static pthread_mutex_t deepest_delta_mutex;
117 #define deepest_delta_lock() lock_mutex(&deepest_delta_mutex)
118 #define deepest_delta_unlock() unlock_mutex(&deepest_delta_mutex)
120 static pthread_mutex_t type_cas_mutex;
121 #define type_cas_lock() lock_mutex(&type_cas_mutex)
122 #define type_cas_unlock() unlock_mutex(&type_cas_mutex)
124 static pthread_key_t key;
126 static inline void lock_mutex(pthread_mutex_t *mutex)
129 pthread_mutex_lock(mutex);
132 static inline void unlock_mutex(pthread_mutex_t *mutex)
135 pthread_mutex_unlock(mutex);
139 * Mutex and conditional variable can't be statically-initialized on Windows.
141 static void init_thread(void)
144 init_recursive_mutex(&read_mutex);
145 pthread_mutex_init(&counter_mutex, NULL);
146 pthread_mutex_init(&work_mutex, NULL);
147 pthread_mutex_init(&type_cas_mutex, NULL);
149 pthread_mutex_init(&deepest_delta_mutex, NULL);
150 pthread_key_create(&key, NULL);
151 thread_data = xcalloc(nr_threads, sizeof(*thread_data));
152 for (i = 0; i < nr_threads; i++) {
153 thread_data[i].pack_fd = open(curr_pack, O_RDONLY);
154 if (thread_data[i].pack_fd == -1)
155 die_errno(_("unable to open %s"), curr_pack);
161 static void cleanup_thread(void)
167 pthread_mutex_destroy(&read_mutex);
168 pthread_mutex_destroy(&counter_mutex);
169 pthread_mutex_destroy(&work_mutex);
170 pthread_mutex_destroy(&type_cas_mutex);
172 pthread_mutex_destroy(&deepest_delta_mutex);
173 for (i = 0; i < nr_threads; i++)
174 close(thread_data[i].pack_fd);
175 pthread_key_delete(key);
179 static int mark_link(struct object *obj, int type, void *data, struct fsck_options *options)
184 if (type != OBJ_ANY && obj->type != type)
185 die(_("object type mismatch at %s"), oid_to_hex(&obj->oid));
187 obj->flags |= FLAG_LINK;
191 /* The content of each linked object must have been checked
192 or it must be already present in the object database */
193 static unsigned check_object(struct object *obj)
198 if (!(obj->flags & FLAG_LINK))
201 if (!(obj->flags & FLAG_CHECKED)) {
203 int type = oid_object_info(the_repository, &obj->oid, &size);
205 die(_("did not receive expected object %s"),
206 oid_to_hex(&obj->oid));
207 if (type != obj->type)
208 die(_("object %s: expected type %s, found %s"),
209 oid_to_hex(&obj->oid),
210 type_name(obj->type), type_name(type));
211 obj->flags |= FLAG_CHECKED;
218 static unsigned check_objects(void)
220 unsigned i, max, foreign_nr = 0;
222 max = get_max_object_index();
225 progress = start_delayed_progress(_("Checking objects"), max);
227 for (i = 0; i < max; i++) {
228 foreign_nr += check_object(get_indexed_object(i));
229 display_progress(progress, i + 1);
232 stop_progress(&progress);
237 /* Discard current buffer used content. */
238 static void flush(void)
242 write_or_die(output_fd, input_buffer, input_offset);
243 the_hash_algo->update_fn(&input_ctx, input_buffer, input_offset);
244 memmove(input_buffer, input_buffer + input_offset, input_len);
250 * Make sure at least "min" bytes are available in the buffer, and
251 * return the pointer to the buffer.
253 static void *fill(int min)
255 if (min <= input_len)
256 return input_buffer + input_offset;
257 if (min > sizeof(input_buffer))
258 die(Q_("cannot fill %d byte",
259 "cannot fill %d bytes",
264 ssize_t ret = xread(input_fd, input_buffer + input_len,
265 sizeof(input_buffer) - input_len);
269 die_errno(_("read error on input"));
273 display_throughput(progress, consumed_bytes + input_len);
274 } while (input_len < min);
278 static void use(int bytes)
280 if (bytes > input_len)
281 die(_("used more bytes than were available"));
282 input_crc32 = crc32(input_crc32, input_buffer + input_offset, bytes);
284 input_offset += bytes;
286 /* make sure off_t is sufficiently large not to wrap */
287 if (signed_add_overflows(consumed_bytes, bytes))
288 die(_("pack too large for current definition of off_t"));
289 consumed_bytes += bytes;
290 if (max_input_size && consumed_bytes > max_input_size)
291 die(_("pack exceeds maximum allowed size"));
294 static const char *open_pack_file(const char *pack_name)
299 struct strbuf tmp_file = STRBUF_INIT;
300 output_fd = odb_mkstemp(&tmp_file,
301 "pack/tmp_pack_XXXXXX");
302 pack_name = strbuf_detach(&tmp_file, NULL);
304 output_fd = open(pack_name, O_CREAT|O_EXCL|O_RDWR, 0600);
306 die_errno(_("unable to create '%s'"), pack_name);
308 nothread_data.pack_fd = output_fd;
310 input_fd = open(pack_name, O_RDONLY);
312 die_errno(_("cannot open packfile '%s'"), pack_name);
314 nothread_data.pack_fd = input_fd;
316 the_hash_algo->init_fn(&input_ctx);
320 static void parse_pack_header(void)
322 struct pack_header *hdr = fill(sizeof(struct pack_header));
324 /* Header consistency check */
325 if (hdr->hdr_signature != htonl(PACK_SIGNATURE))
326 die(_("pack signature mismatch"));
327 if (!pack_version_ok(hdr->hdr_version))
328 die(_("pack version %"PRIu32" unsupported"),
329 ntohl(hdr->hdr_version));
331 nr_objects = ntohl(hdr->hdr_entries);
332 use(sizeof(struct pack_header));
335 static NORETURN void bad_object(off_t offset, const char *format,
336 ...) __attribute__((format (printf, 2, 3)));
338 static NORETURN void bad_object(off_t offset, const char *format, ...)
343 va_start(params, format);
344 vsnprintf(buf, sizeof(buf), format, params);
346 die(_("pack has bad object at offset %"PRIuMAX": %s"),
347 (uintmax_t)offset, buf);
350 static inline struct thread_local *get_thread_data(void)
354 return pthread_getspecific(key);
355 assert(!threads_active &&
356 "This should only be reached when all threads are gone");
358 return ¬hread_data;
361 static void set_thread_data(struct thread_local *data)
364 pthread_setspecific(key, data);
367 static struct base_data *alloc_base_data(void)
369 struct base_data *base = xcalloc(1, sizeof(struct base_data));
375 static void free_base_data(struct base_data *c)
378 FREE_AND_NULL(c->data);
379 get_thread_data()->base_cache_used -= c->size;
383 static void prune_base_data(struct base_data *retain)
386 struct thread_local *data = get_thread_data();
387 for (b = data->base_cache;
388 data->base_cache_used > delta_base_cache_limit && b;
390 if (b->data && b != retain)
395 static void link_base_data(struct base_data *base, struct base_data *c)
400 get_thread_data()->base_cache = c;
405 get_thread_data()->base_cache_used += c->size;
409 static void unlink_base_data(struct base_data *c)
411 struct base_data *base = c->base;
415 get_thread_data()->base_cache = NULL;
419 static int is_delta_type(enum object_type type)
421 return (type == OBJ_REF_DELTA || type == OBJ_OFS_DELTA);
424 static void *unpack_entry_data(off_t offset, unsigned long size,
425 enum object_type type, struct object_id *oid)
427 static char fixed_buf[8192];
435 if (!is_delta_type(type)) {
436 hdrlen = xsnprintf(hdr, sizeof(hdr), "%s %"PRIuMAX,
437 type_name(type),(uintmax_t)size) + 1;
438 the_hash_algo->init_fn(&c);
439 the_hash_algo->update_fn(&c, hdr, hdrlen);
442 if (type == OBJ_BLOB && size > big_file_threshold)
445 buf = xmallocz(size);
447 memset(&stream, 0, sizeof(stream));
448 git_inflate_init(&stream);
449 stream.next_out = buf;
450 stream.avail_out = buf == fixed_buf ? sizeof(fixed_buf) : size;
453 unsigned char *last_out = stream.next_out;
454 stream.next_in = fill(1);
455 stream.avail_in = input_len;
456 status = git_inflate(&stream, 0);
457 use(input_len - stream.avail_in);
459 the_hash_algo->update_fn(&c, last_out, stream.next_out - last_out);
460 if (buf == fixed_buf) {
461 stream.next_out = buf;
462 stream.avail_out = sizeof(fixed_buf);
464 } while (status == Z_OK);
465 if (stream.total_out != size || status != Z_STREAM_END)
466 bad_object(offset, _("inflate returned %d"), status);
467 git_inflate_end(&stream);
469 the_hash_algo->final_fn(oid->hash, &c);
470 return buf == fixed_buf ? NULL : buf;
473 static void *unpack_raw_entry(struct object_entry *obj,
475 struct object_id *ref_oid,
476 struct object_id *oid)
479 unsigned long size, c;
484 obj->idx.offset = consumed_bytes;
485 input_crc32 = crc32(0, NULL, 0);
490 obj->type = (c >> 4) & 7;
497 size += (c & 0x7f) << shift;
504 hashcpy(ref_oid->hash, fill(the_hash_algo->rawsz));
505 use(the_hash_algo->rawsz);
511 base_offset = c & 127;
514 if (!base_offset || MSB(base_offset, 7))
515 bad_object(obj->idx.offset, _("offset value overflow for delta base object"));
519 base_offset = (base_offset << 7) + (c & 127);
521 *ofs_offset = obj->idx.offset - base_offset;
522 if (*ofs_offset <= 0 || *ofs_offset >= obj->idx.offset)
523 bad_object(obj->idx.offset, _("delta base offset is out of bound"));
531 bad_object(obj->idx.offset, _("unknown object type %d"), obj->type);
533 obj->hdr_size = consumed_bytes - obj->idx.offset;
535 data = unpack_entry_data(obj->idx.offset, obj->size, obj->type, oid);
536 obj->idx.crc32 = input_crc32;
540 static void *unpack_data(struct object_entry *obj,
541 int (*consume)(const unsigned char *, unsigned long, void *),
544 off_t from = obj[0].idx.offset + obj[0].hdr_size;
545 off_t len = obj[1].idx.offset - from;
546 unsigned char *data, *inbuf;
550 data = xmallocz(consume ? 64*1024 : obj->size);
551 inbuf = xmalloc((len < 64*1024) ? (int)len : 64*1024);
553 memset(&stream, 0, sizeof(stream));
554 git_inflate_init(&stream);
555 stream.next_out = data;
556 stream.avail_out = consume ? 64*1024 : obj->size;
559 ssize_t n = (len < 64*1024) ? (ssize_t)len : 64*1024;
560 n = xpread(get_thread_data()->pack_fd, inbuf, n, from);
562 die_errno(_("cannot pread pack file"));
564 die(Q_("premature end of pack file, %"PRIuMAX" byte missing",
565 "premature end of pack file, %"PRIuMAX" bytes missing",
570 stream.next_in = inbuf;
573 status = git_inflate(&stream, 0);
576 status = git_inflate(&stream, 0);
577 if (consume(data, stream.next_out - data, cb_data)) {
582 stream.next_out = data;
583 stream.avail_out = 64*1024;
584 } while (status == Z_OK && stream.avail_in);
586 } while (len && status == Z_OK && !stream.avail_in);
588 /* This has been inflated OK when first encountered, so... */
589 if (status != Z_STREAM_END || stream.total_out != obj->size)
590 die(_("serious inflate inconsistency"));
592 git_inflate_end(&stream);
600 static void *get_data_from_pack(struct object_entry *obj)
602 return unpack_data(obj, NULL, NULL);
605 static int compare_ofs_delta_bases(off_t offset1, off_t offset2,
606 enum object_type type1,
607 enum object_type type2)
609 int cmp = type1 - type2;
612 return offset1 < offset2 ? -1 :
613 offset1 > offset2 ? 1 :
617 static int find_ofs_delta(const off_t offset, enum object_type type)
619 int first = 0, last = nr_ofs_deltas;
621 while (first < last) {
622 int next = first + (last - first) / 2;
623 struct ofs_delta_entry *delta = &ofs_deltas[next];
626 cmp = compare_ofs_delta_bases(offset, delta->offset,
627 type, objects[delta->obj_no].type);
639 static void find_ofs_delta_children(off_t offset,
640 int *first_index, int *last_index,
641 enum object_type type)
643 int first = find_ofs_delta(offset, type);
645 int end = nr_ofs_deltas - 1;
652 while (first > 0 && ofs_deltas[first - 1].offset == offset)
654 while (last < end && ofs_deltas[last + 1].offset == offset)
656 *first_index = first;
660 static int compare_ref_delta_bases(const struct object_id *oid1,
661 const struct object_id *oid2,
662 enum object_type type1,
663 enum object_type type2)
665 int cmp = type1 - type2;
668 return oidcmp(oid1, oid2);
671 static int find_ref_delta(const struct object_id *oid, enum object_type type)
673 int first = 0, last = nr_ref_deltas;
675 while (first < last) {
676 int next = first + (last - first) / 2;
677 struct ref_delta_entry *delta = &ref_deltas[next];
680 cmp = compare_ref_delta_bases(oid, &delta->oid,
681 type, objects[delta->obj_no].type);
693 static void find_ref_delta_children(const struct object_id *oid,
694 int *first_index, int *last_index,
695 enum object_type type)
697 int first = find_ref_delta(oid, type);
699 int end = nr_ref_deltas - 1;
706 while (first > 0 && oideq(&ref_deltas[first - 1].oid, oid))
708 while (last < end && oideq(&ref_deltas[last + 1].oid, oid))
710 *first_index = first;
714 struct compare_data {
715 struct object_entry *entry;
716 struct git_istream *st;
718 unsigned long buf_size;
721 static int compare_objects(const unsigned char *buf, unsigned long size,
724 struct compare_data *data = cb_data;
726 if (data->buf_size < size) {
728 data->buf = xmalloc(size);
729 data->buf_size = size;
733 ssize_t len = read_istream(data->st, data->buf, size);
735 die(_("SHA1 COLLISION FOUND WITH %s !"),
736 oid_to_hex(&data->entry->idx.oid));
738 die(_("unable to read %s"),
739 oid_to_hex(&data->entry->idx.oid));
740 if (memcmp(buf, data->buf, len))
741 die(_("SHA1 COLLISION FOUND WITH %s !"),
742 oid_to_hex(&data->entry->idx.oid));
749 static int check_collison(struct object_entry *entry)
751 struct compare_data data;
752 enum object_type type;
755 if (entry->size <= big_file_threshold || entry->type != OBJ_BLOB)
758 memset(&data, 0, sizeof(data));
760 data.st = open_istream(&entry->idx.oid, &type, &size, NULL);
763 if (size != entry->size || type != entry->type)
764 die(_("SHA1 COLLISION FOUND WITH %s !"),
765 oid_to_hex(&entry->idx.oid));
766 unpack_data(entry, compare_objects, &data);
767 close_istream(data.st);
772 static void sha1_object(const void *data, struct object_entry *obj_entry,
773 unsigned long size, enum object_type type,
774 const struct object_id *oid)
776 void *new_data = NULL;
777 int collision_test_needed = 0;
779 assert(data || obj_entry);
781 if (startup_info->have_repository) {
783 collision_test_needed =
784 has_object_file_with_flags(oid, OBJECT_INFO_QUICK);
788 if (collision_test_needed && !data) {
790 if (!check_collison(obj_entry))
791 collision_test_needed = 0;
794 if (collision_test_needed) {
796 enum object_type has_type;
797 unsigned long has_size;
799 has_type = oid_object_info(the_repository, oid, &has_size);
801 die(_("cannot read existing object info %s"), oid_to_hex(oid));
802 if (has_type != type || has_size != size)
803 die(_("SHA1 COLLISION FOUND WITH %s !"), oid_to_hex(oid));
804 has_data = read_object_file(oid, &has_type, &has_size);
807 data = new_data = get_data_from_pack(obj_entry);
809 die(_("cannot read existing object %s"), oid_to_hex(oid));
810 if (size != has_size || type != has_type ||
811 memcmp(data, has_data, size) != 0)
812 die(_("SHA1 COLLISION FOUND WITH %s !"), oid_to_hex(oid));
816 if (strict || do_fsck_object) {
818 if (type == OBJ_BLOB) {
819 struct blob *blob = lookup_blob(the_repository, oid);
821 blob->object.flags |= FLAG_CHECKED;
823 die(_("invalid blob object %s"), oid_to_hex(oid));
824 if (do_fsck_object &&
825 fsck_object(&blob->object, (void *)data, size, &fsck_options))
826 die(_("fsck error in packed object"));
830 void *buf = (void *) data;
832 assert(data && "data can only be NULL for large _blobs_");
835 * we do not need to free the memory here, as the
836 * buf is deleted by the caller.
838 obj = parse_object_buffer(the_repository, oid, type,
842 die(_("invalid %s"), type_name(type));
843 if (do_fsck_object &&
844 fsck_object(obj, buf, size, &fsck_options))
845 die(_("fsck error in packed object"));
846 if (strict && fsck_walk(obj, NULL, &fsck_options))
847 die(_("Not all child objects of %s are reachable"), oid_to_hex(&obj->oid));
849 if (obj->type == OBJ_TREE) {
850 struct tree *item = (struct tree *) obj;
854 if (obj->type == OBJ_COMMIT) {
855 struct commit *commit = (struct commit *) obj;
856 if (detach_commit_buffer(commit, NULL) != data)
857 BUG("parse_object_buffer transmogrified our buffer");
859 obj->flags |= FLAG_CHECKED;
868 * This function is part of find_unresolved_deltas(). There are two
869 * walkers going in the opposite ways.
871 * The first one in find_unresolved_deltas() traverses down from
872 * parent node to children, deflating nodes along the way. However,
873 * memory for deflated nodes is limited by delta_base_cache_limit, so
874 * at some point parent node's deflated content may be freed.
876 * The second walker is this function, which goes from current node up
877 * to top parent if necessary to deflate the node. In normal
878 * situation, its parent node would be already deflated, so it just
879 * needs to apply delta.
881 * In the worst case scenario, parent node is no longer deflated because
882 * we're running out of delta_base_cache_limit; we need to re-deflate
883 * parents, possibly up to the top base.
885 * All deflated objects here are subject to be freed if we exceed
886 * delta_base_cache_limit, just like in find_unresolved_deltas(), we
887 * just need to make sure the last node is not freed.
889 static void *get_base_data(struct base_data *c)
892 struct object_entry *obj = c->obj;
893 struct base_data **delta = NULL;
894 int delta_nr = 0, delta_alloc = 0;
896 while (is_delta_type(c->obj->type) && !c->data) {
897 ALLOC_GROW(delta, delta_nr + 1, delta_alloc);
898 delta[delta_nr++] = c;
902 c->data = get_data_from_pack(obj);
904 get_thread_data()->base_cache_used += c->size;
907 for (; delta_nr > 0; delta_nr--) {
909 c = delta[delta_nr - 1];
911 base = get_base_data(c->base);
912 raw = get_data_from_pack(obj);
913 c->data = patch_delta(
919 bad_object(obj->idx.offset, _("failed to apply delta"));
920 get_thread_data()->base_cache_used += c->size;
928 static void resolve_delta(struct object_entry *delta_obj,
929 struct base_data *base, struct base_data *result)
931 void *base_data, *delta_data;
934 int i = delta_obj - objects;
935 int j = base->obj - objects;
936 obj_stat[i].delta_depth = obj_stat[j].delta_depth + 1;
937 deepest_delta_lock();
938 if (deepest_delta < obj_stat[i].delta_depth)
939 deepest_delta = obj_stat[i].delta_depth;
940 deepest_delta_unlock();
941 obj_stat[i].base_object_no = j;
943 delta_data = get_data_from_pack(delta_obj);
944 base_data = get_base_data(base);
945 result->obj = delta_obj;
946 result->data = patch_delta(base_data, base->size,
947 delta_data, delta_obj->size, &result->size);
950 bad_object(delta_obj->idx.offset, _("failed to apply delta"));
951 hash_object_file(result->data, result->size,
952 type_name(delta_obj->real_type), &delta_obj->idx.oid);
953 sha1_object(result->data, NULL, result->size, delta_obj->real_type,
954 &delta_obj->idx.oid);
956 nr_resolved_deltas++;
961 * Standard boolean compare-and-swap: atomically check whether "*type" is
962 * "want"; if so, swap in "set" and return true. Otherwise, leave it untouched
965 static int compare_and_swap_type(signed char *type,
966 enum object_type want,
967 enum object_type set)
969 enum object_type old;
980 static struct base_data *find_unresolved_deltas_1(struct base_data *base,
981 struct base_data *prev_base)
983 if (base->ref_last == -1 && base->ofs_last == -1) {
984 find_ref_delta_children(&base->obj->idx.oid,
985 &base->ref_first, &base->ref_last,
988 find_ofs_delta_children(base->obj->idx.offset,
989 &base->ofs_first, &base->ofs_last,
992 if (base->ref_last == -1 && base->ofs_last == -1) {
997 link_base_data(prev_base, base);
1000 if (base->ref_first <= base->ref_last) {
1001 struct object_entry *child = objects + ref_deltas[base->ref_first].obj_no;
1002 struct base_data *result = alloc_base_data();
1004 if (!compare_and_swap_type(&child->real_type, OBJ_REF_DELTA,
1005 base->obj->real_type))
1006 die("REF_DELTA at offset %"PRIuMAX" already resolved (duplicate base %s?)",
1007 (uintmax_t)child->idx.offset,
1008 oid_to_hex(&base->obj->idx.oid));
1010 resolve_delta(child, base, result);
1011 if (base->ref_first == base->ref_last && base->ofs_last == -1)
1012 free_base_data(base);
1018 if (base->ofs_first <= base->ofs_last) {
1019 struct object_entry *child = objects + ofs_deltas[base->ofs_first].obj_no;
1020 struct base_data *result = alloc_base_data();
1022 assert(child->real_type == OBJ_OFS_DELTA);
1023 child->real_type = base->obj->real_type;
1024 resolve_delta(child, base, result);
1025 if (base->ofs_first == base->ofs_last)
1026 free_base_data(base);
1032 unlink_base_data(base);
1036 static void find_unresolved_deltas(struct base_data *base)
1038 struct base_data *new_base, *prev_base = NULL;
1040 new_base = find_unresolved_deltas_1(base, prev_base);
1050 prev_base = base->base;
1055 static int compare_ofs_delta_entry(const void *a, const void *b)
1057 const struct ofs_delta_entry *delta_a = a;
1058 const struct ofs_delta_entry *delta_b = b;
1060 return delta_a->offset < delta_b->offset ? -1 :
1061 delta_a->offset > delta_b->offset ? 1 :
1065 static int compare_ref_delta_entry(const void *a, const void *b)
1067 const struct ref_delta_entry *delta_a = a;
1068 const struct ref_delta_entry *delta_b = b;
1070 return oidcmp(&delta_a->oid, &delta_b->oid);
1073 static void resolve_base(struct object_entry *obj)
1075 struct base_data *base_obj = alloc_base_data();
1076 base_obj->obj = obj;
1077 base_obj->data = NULL;
1078 find_unresolved_deltas(base_obj);
1081 static void *threaded_second_pass(void *data)
1083 set_thread_data(data);
1087 display_progress(progress, nr_resolved_deltas);
1090 while (nr_dispatched < nr_objects &&
1091 is_delta_type(objects[nr_dispatched].type))
1093 if (nr_dispatched >= nr_objects) {
1097 i = nr_dispatched++;
1100 resolve_base(&objects[i]);
1107 * - find locations of all objects;
1108 * - calculate SHA1 of all non-delta objects;
1109 * - remember base (SHA1 or offset) for all deltas.
1111 static void parse_pack_objects(unsigned char *hash)
1113 int i, nr_delays = 0;
1114 struct ofs_delta_entry *ofs_delta = ofs_deltas;
1115 struct object_id ref_delta_oid;
1119 progress = start_progress(
1120 from_stdin ? _("Receiving objects") : _("Indexing objects"),
1122 for (i = 0; i < nr_objects; i++) {
1123 struct object_entry *obj = &objects[i];
1124 void *data = unpack_raw_entry(obj, &ofs_delta->offset,
1127 obj->real_type = obj->type;
1128 if (obj->type == OBJ_OFS_DELTA) {
1130 ofs_delta->obj_no = i;
1132 } else if (obj->type == OBJ_REF_DELTA) {
1133 ALLOC_GROW(ref_deltas, nr_ref_deltas + 1, ref_deltas_alloc);
1134 oidcpy(&ref_deltas[nr_ref_deltas].oid, &ref_delta_oid);
1135 ref_deltas[nr_ref_deltas].obj_no = i;
1138 /* large blobs, check later */
1139 obj->real_type = OBJ_BAD;
1142 sha1_object(data, NULL, obj->size, obj->type,
1145 display_progress(progress, i+1);
1147 objects[i].idx.offset = consumed_bytes;
1148 stop_progress(&progress);
1150 /* Check pack integrity */
1152 the_hash_algo->final_fn(hash, &input_ctx);
1153 if (!hasheq(fill(the_hash_algo->rawsz), hash))
1154 die(_("pack is corrupted (SHA1 mismatch)"));
1155 use(the_hash_algo->rawsz);
1157 /* If input_fd is a file, we should have reached its end now. */
1158 if (fstat(input_fd, &st))
1159 die_errno(_("cannot fstat packfile"));
1160 if (S_ISREG(st.st_mode) &&
1161 lseek(input_fd, 0, SEEK_CUR) - input_len != st.st_size)
1162 die(_("pack has junk at the end"));
1164 for (i = 0; i < nr_objects; i++) {
1165 struct object_entry *obj = &objects[i];
1166 if (obj->real_type != OBJ_BAD)
1168 obj->real_type = obj->type;
1169 sha1_object(NULL, obj, obj->size, obj->type,
1174 die(_("confusion beyond insanity in parse_pack_objects()"));
1179 * - for all non-delta objects, look if it is used as a base for
1181 * - if used as a base, uncompress the object and apply all deltas,
1182 * recursively checking if the resulting object is used as a base
1183 * for some more deltas.
1185 static void resolve_deltas(void)
1189 if (!nr_ofs_deltas && !nr_ref_deltas)
1192 /* Sort deltas by base SHA1/offset for fast searching */
1193 QSORT(ofs_deltas, nr_ofs_deltas, compare_ofs_delta_entry);
1194 QSORT(ref_deltas, nr_ref_deltas, compare_ref_delta_entry);
1196 if (verbose || show_resolving_progress)
1197 progress = start_progress(_("Resolving deltas"),
1198 nr_ref_deltas + nr_ofs_deltas);
1201 if (nr_threads > 1 || getenv("GIT_FORCE_THREADS")) {
1203 for (i = 0; i < nr_threads; i++) {
1204 int ret = pthread_create(&thread_data[i].thread, NULL,
1205 threaded_second_pass, thread_data + i);
1207 die(_("unable to create thread: %s"),
1210 for (i = 0; i < nr_threads; i++)
1211 pthread_join(thread_data[i].thread, NULL);
1216 for (i = 0; i < nr_objects; i++) {
1217 struct object_entry *obj = &objects[i];
1219 if (is_delta_type(obj->type))
1222 display_progress(progress, nr_resolved_deltas);
1228 * - append objects to convert thin pack to full pack if required
1229 * - write the final pack hash
1231 static void fix_unresolved_deltas(struct hashfile *f);
1232 static void conclude_pack(int fix_thin_pack, const char *curr_pack, unsigned char *pack_hash)
1234 if (nr_ref_deltas + nr_ofs_deltas == nr_resolved_deltas) {
1235 stop_progress(&progress);
1236 /* Flush remaining pack final hash. */
1241 if (fix_thin_pack) {
1243 unsigned char read_hash[GIT_MAX_RAWSZ], tail_hash[GIT_MAX_RAWSZ];
1244 struct strbuf msg = STRBUF_INIT;
1245 int nr_unresolved = nr_ofs_deltas + nr_ref_deltas - nr_resolved_deltas;
1246 int nr_objects_initial = nr_objects;
1247 if (nr_unresolved <= 0)
1248 die(_("confusion beyond insanity"));
1249 REALLOC_ARRAY(objects, nr_objects + nr_unresolved + 1);
1250 memset(objects + nr_objects + 1, 0,
1251 nr_unresolved * sizeof(*objects));
1252 f = hashfd(output_fd, curr_pack);
1253 fix_unresolved_deltas(f);
1254 strbuf_addf(&msg, Q_("completed with %d local object",
1255 "completed with %d local objects",
1256 nr_objects - nr_objects_initial),
1257 nr_objects - nr_objects_initial);
1258 stop_progress_msg(&progress, msg.buf);
1259 strbuf_release(&msg);
1260 finalize_hashfile(f, tail_hash, 0);
1261 hashcpy(read_hash, pack_hash);
1262 fixup_pack_header_footer(output_fd, pack_hash,
1263 curr_pack, nr_objects,
1264 read_hash, consumed_bytes-the_hash_algo->rawsz);
1265 if (!hasheq(read_hash, tail_hash))
1266 die(_("Unexpected tail checksum for %s "
1267 "(disk corruption?)"), curr_pack);
1269 if (nr_ofs_deltas + nr_ref_deltas != nr_resolved_deltas)
1270 die(Q_("pack has %d unresolved delta",
1271 "pack has %d unresolved deltas",
1272 nr_ofs_deltas + nr_ref_deltas - nr_resolved_deltas),
1273 nr_ofs_deltas + nr_ref_deltas - nr_resolved_deltas);
1276 static int write_compressed(struct hashfile *f, void *in, unsigned int size)
1280 unsigned char outbuf[4096];
1282 git_deflate_init(&stream, zlib_compression_level);
1283 stream.next_in = in;
1284 stream.avail_in = size;
1287 stream.next_out = outbuf;
1288 stream.avail_out = sizeof(outbuf);
1289 status = git_deflate(&stream, Z_FINISH);
1290 hashwrite(f, outbuf, sizeof(outbuf) - stream.avail_out);
1291 } while (status == Z_OK);
1293 if (status != Z_STREAM_END)
1294 die(_("unable to deflate appended object (%d)"), status);
1295 size = stream.total_out;
1296 git_deflate_end(&stream);
1300 static struct object_entry *append_obj_to_pack(struct hashfile *f,
1301 const unsigned char *sha1, void *buf,
1302 unsigned long size, enum object_type type)
1304 struct object_entry *obj = &objects[nr_objects++];
1305 unsigned char header[10];
1306 unsigned long s = size;
1308 unsigned char c = (type << 4) | (s & 15);
1311 header[n++] = c | 0x80;
1317 hashwrite(f, header, n);
1319 obj[0].hdr_size = n;
1321 obj[0].real_type = type;
1322 obj[1].idx.offset = obj[0].idx.offset + n;
1323 obj[1].idx.offset += write_compressed(f, buf, size);
1324 obj[0].idx.crc32 = crc32_end(f);
1326 hashcpy(obj->idx.oid.hash, sha1);
1330 static int delta_pos_compare(const void *_a, const void *_b)
1332 struct ref_delta_entry *a = *(struct ref_delta_entry **)_a;
1333 struct ref_delta_entry *b = *(struct ref_delta_entry **)_b;
1334 return a->obj_no - b->obj_no;
1337 static void fix_unresolved_deltas(struct hashfile *f)
1339 struct ref_delta_entry **sorted_by_pos;
1343 * Since many unresolved deltas may well be themselves base objects
1344 * for more unresolved deltas, we really want to include the
1345 * smallest number of base objects that would cover as much delta
1346 * as possible by picking the
1347 * trunc deltas first, allowing for other deltas to resolve without
1348 * additional base objects. Since most base objects are to be found
1349 * before deltas depending on them, a good heuristic is to start
1350 * resolving deltas in the same order as their position in the pack.
1352 ALLOC_ARRAY(sorted_by_pos, nr_ref_deltas);
1353 for (i = 0; i < nr_ref_deltas; i++)
1354 sorted_by_pos[i] = &ref_deltas[i];
1355 QSORT(sorted_by_pos, nr_ref_deltas, delta_pos_compare);
1357 if (has_promisor_remote()) {
1359 * Prefetch the delta bases.
1361 struct oid_array to_fetch = OID_ARRAY_INIT;
1362 for (i = 0; i < nr_ref_deltas; i++) {
1363 struct ref_delta_entry *d = sorted_by_pos[i];
1364 if (!oid_object_info_extended(the_repository, &d->oid,
1366 OBJECT_INFO_FOR_PREFETCH))
1368 oid_array_append(&to_fetch, &d->oid);
1371 promisor_remote_get_direct(the_repository,
1372 to_fetch.oid, to_fetch.nr);
1373 oid_array_clear(&to_fetch);
1376 for (i = 0; i < nr_ref_deltas; i++) {
1377 struct ref_delta_entry *d = sorted_by_pos[i];
1378 enum object_type type;
1379 struct base_data *base_obj = alloc_base_data();
1381 if (objects[d->obj_no].real_type != OBJ_REF_DELTA)
1383 base_obj->data = read_object_file(&d->oid, &type,
1385 if (!base_obj->data)
1388 if (check_object_signature(&d->oid, base_obj->data,
1389 base_obj->size, type_name(type)))
1390 die(_("local object %s is corrupt"), oid_to_hex(&d->oid));
1391 base_obj->obj = append_obj_to_pack(f, d->oid.hash,
1392 base_obj->data, base_obj->size, type);
1393 find_unresolved_deltas(base_obj);
1394 display_progress(progress, nr_resolved_deltas);
1396 free(sorted_by_pos);
1399 static const char *derive_filename(const char *pack_name, const char *suffix,
1403 if (!strip_suffix(pack_name, ".pack", &len))
1404 die(_("packfile name '%s' does not end with '.pack'"),
1406 strbuf_add(buf, pack_name, len);
1407 strbuf_addch(buf, '.');
1408 strbuf_addstr(buf, suffix);
1412 static void write_special_file(const char *suffix, const char *msg,
1413 const char *pack_name, const unsigned char *hash,
1414 const char **report)
1416 struct strbuf name_buf = STRBUF_INIT;
1417 const char *filename;
1419 int msg_len = strlen(msg);
1422 filename = derive_filename(pack_name, suffix, &name_buf);
1424 filename = odb_pack_name(&name_buf, hash, suffix);
1426 fd = odb_pack_keep(filename);
1428 if (errno != EEXIST)
1429 die_errno(_("cannot write %s file '%s'"),
1433 write_or_die(fd, msg, msg_len);
1434 write_or_die(fd, "\n", 1);
1437 die_errno(_("cannot close written %s file '%s'"),
1442 strbuf_release(&name_buf);
1445 static void final(const char *final_pack_name, const char *curr_pack_name,
1446 const char *final_index_name, const char *curr_index_name,
1447 const char *keep_msg, const char *promisor_msg,
1448 unsigned char *hash)
1450 const char *report = "pack";
1451 struct strbuf pack_name = STRBUF_INIT;
1452 struct strbuf index_name = STRBUF_INIT;
1458 fsync_or_die(output_fd, curr_pack_name);
1459 err = close(output_fd);
1461 die_errno(_("error while closing pack file"));
1465 write_special_file("keep", keep_msg, final_pack_name, hash,
1468 write_special_file("promisor", promisor_msg, final_pack_name,
1471 if (final_pack_name != curr_pack_name) {
1472 if (!final_pack_name)
1473 final_pack_name = odb_pack_name(&pack_name, hash, "pack");
1474 if (finalize_object_file(curr_pack_name, final_pack_name))
1475 die(_("cannot store pack file"));
1476 } else if (from_stdin)
1477 chmod(final_pack_name, 0444);
1479 if (final_index_name != curr_index_name) {
1480 if (!final_index_name)
1481 final_index_name = odb_pack_name(&index_name, hash, "idx");
1482 if (finalize_object_file(curr_index_name, final_index_name))
1483 die(_("cannot store index file"));
1485 chmod(final_index_name, 0444);
1487 if (do_fsck_object) {
1488 struct packed_git *p;
1489 p = add_packed_git(final_index_name, strlen(final_index_name), 0);
1491 install_packed_git(the_repository, p);
1495 printf("%s\n", hash_to_hex(hash));
1497 struct strbuf buf = STRBUF_INIT;
1499 strbuf_addf(&buf, "%s\t%s\n", report, hash_to_hex(hash));
1500 write_or_die(1, buf.buf, buf.len);
1501 strbuf_release(&buf);
1504 * Let's just mimic git-unpack-objects here and write
1505 * the last part of the input buffer to stdout.
1508 err = xwrite(1, input_buffer + input_offset, input_len);
1512 input_offset += err;
1516 strbuf_release(&index_name);
1517 strbuf_release(&pack_name);
1520 static int git_index_pack_config(const char *k, const char *v, void *cb)
1522 struct pack_idx_option *opts = cb;
1524 if (!strcmp(k, "pack.indexversion")) {
1525 opts->version = git_config_int(k, v);
1526 if (opts->version > 2)
1527 die(_("bad pack.indexversion=%"PRIu32), opts->version);
1530 if (!strcmp(k, "pack.threads")) {
1531 nr_threads = git_config_int(k, v);
1533 die(_("invalid number of threads specified (%d)"),
1535 if (!HAVE_THREADS && nr_threads != 1) {
1536 warning(_("no threads support, ignoring %s"), k);
1541 return git_default_config(k, v, cb);
1544 static int cmp_uint32(const void *a_, const void *b_)
1546 uint32_t a = *((uint32_t *)a_);
1547 uint32_t b = *((uint32_t *)b_);
1549 return (a < b) ? -1 : (a != b);
1552 static void read_v2_anomalous_offsets(struct packed_git *p,
1553 struct pack_idx_option *opts)
1555 const uint32_t *idx1, *idx2;
1557 const uint32_t hashwords = the_hash_algo->rawsz / sizeof(uint32_t);
1559 /* The address of the 4-byte offset table */
1560 idx1 = (((const uint32_t *)p->index_data)
1561 + 2 /* 8-byte header */
1563 + hashwords * p->num_objects /* object ID table */
1564 + p->num_objects /* CRC32 table */
1567 /* The address of the 8-byte offset table */
1568 idx2 = idx1 + p->num_objects;
1570 for (i = 0; i < p->num_objects; i++) {
1571 uint32_t off = ntohl(idx1[i]);
1572 if (!(off & 0x80000000))
1574 off = off & 0x7fffffff;
1575 check_pack_index_ptr(p, &idx2[off * 2]);
1579 * The real offset is ntohl(idx2[off * 2]) in high 4
1580 * octets, and ntohl(idx2[off * 2 + 1]) in low 4
1581 * octets. But idx2[off * 2] is Zero!!!
1583 ALLOC_GROW(opts->anomaly, opts->anomaly_nr + 1, opts->anomaly_alloc);
1584 opts->anomaly[opts->anomaly_nr++] = ntohl(idx2[off * 2 + 1]);
1587 QSORT(opts->anomaly, opts->anomaly_nr, cmp_uint32);
1590 static void read_idx_option(struct pack_idx_option *opts, const char *pack_name)
1592 struct packed_git *p = add_packed_git(pack_name, strlen(pack_name), 1);
1595 die(_("Cannot open existing pack file '%s'"), pack_name);
1596 if (open_pack_index(p))
1597 die(_("Cannot open existing pack idx file for '%s'"), pack_name);
1599 /* Read the attributes from the existing idx file */
1600 opts->version = p->index_version;
1602 if (opts->version == 2)
1603 read_v2_anomalous_offsets(p, opts);
1606 * Get rid of the idx file as we do not need it anymore.
1607 * NEEDSWORK: extract this bit from free_pack_by_name() in
1608 * sha1-file.c, perhaps? It shouldn't matter very much as we
1609 * know we haven't installed this pack (hence we never have
1610 * read anything from it).
1612 close_pack_index(p);
1616 static void show_pack_info(int stat_only)
1618 int i, baseobjects = nr_objects - nr_ref_deltas - nr_ofs_deltas;
1619 unsigned long *chain_histogram = NULL;
1622 chain_histogram = xcalloc(deepest_delta, sizeof(unsigned long));
1624 for (i = 0; i < nr_objects; i++) {
1625 struct object_entry *obj = &objects[i];
1627 if (is_delta_type(obj->type))
1628 chain_histogram[obj_stat[i].delta_depth - 1]++;
1631 printf("%s %-6s %"PRIuMAX" %"PRIuMAX" %"PRIuMAX,
1632 oid_to_hex(&obj->idx.oid),
1633 type_name(obj->real_type), (uintmax_t)obj->size,
1634 (uintmax_t)(obj[1].idx.offset - obj->idx.offset),
1635 (uintmax_t)obj->idx.offset);
1636 if (is_delta_type(obj->type)) {
1637 struct object_entry *bobj = &objects[obj_stat[i].base_object_no];
1638 printf(" %u %s", obj_stat[i].delta_depth,
1639 oid_to_hex(&bobj->idx.oid));
1645 printf_ln(Q_("non delta: %d object",
1646 "non delta: %d objects",
1649 for (i = 0; i < deepest_delta; i++) {
1650 if (!chain_histogram[i])
1652 printf_ln(Q_("chain length = %d: %lu object",
1653 "chain length = %d: %lu objects",
1654 chain_histogram[i]),
1656 chain_histogram[i]);
1660 int cmd_index_pack(int argc, const char **argv, const char *prefix)
1662 int i, fix_thin_pack = 0, verify = 0, stat_only = 0;
1663 const char *curr_index;
1664 const char *index_name = NULL, *pack_name = NULL;
1665 const char *keep_msg = NULL;
1666 const char *promisor_msg = NULL;
1667 struct strbuf index_name_buf = STRBUF_INIT;
1668 struct pack_idx_entry **idx_objects;
1669 struct pack_idx_option opts;
1670 unsigned char pack_hash[GIT_MAX_RAWSZ];
1671 unsigned foreign_nr = 1; /* zero is a "good" value, assume bad */
1672 int report_end_of_input = 0;
1675 * index-pack never needs to fetch missing objects except when
1676 * REF_DELTA bases are missing (which are explicitly handled). It only
1677 * accesses the repo to do hash collision checks and to check which
1678 * REF_DELTA bases need to be fetched.
1680 fetch_if_missing = 0;
1682 if (argc == 2 && !strcmp(argv[1], "-h"))
1683 usage(index_pack_usage);
1685 read_replace_refs = 0;
1686 fsck_options.walk = mark_link;
1688 reset_pack_idx_option(&opts);
1689 git_config(git_index_pack_config, &opts);
1690 if (prefix && chdir(prefix))
1691 die(_("Cannot come back to cwd"));
1693 for (i = 1; i < argc; i++) {
1694 const char *arg = argv[i];
1697 if (!strcmp(arg, "--stdin")) {
1699 } else if (!strcmp(arg, "--fix-thin")) {
1701 } else if (skip_to_optional_arg(arg, "--strict", &arg)) {
1704 fsck_set_msg_types(&fsck_options, arg);
1705 } else if (!strcmp(arg, "--check-self-contained-and-connected")) {
1707 check_self_contained_and_connected = 1;
1708 } else if (!strcmp(arg, "--fsck-objects")) {
1710 } else if (!strcmp(arg, "--verify")) {
1712 } else if (!strcmp(arg, "--verify-stat")) {
1715 } else if (!strcmp(arg, "--verify-stat-only")) {
1719 } else if (skip_to_optional_arg(arg, "--keep", &keep_msg)) {
1720 ; /* nothing to do */
1721 } else if (skip_to_optional_arg(arg, "--promisor", &promisor_msg)) {
1722 ; /* already parsed */
1723 } else if (starts_with(arg, "--threads=")) {
1725 nr_threads = strtoul(arg+10, &end, 0);
1726 if (!arg[10] || *end || nr_threads < 0)
1727 usage(index_pack_usage);
1728 if (!HAVE_THREADS && nr_threads != 1) {
1729 warning(_("no threads support, ignoring %s"), arg);
1732 } else if (starts_with(arg, "--pack_header=")) {
1733 struct pack_header *hdr;
1736 hdr = (struct pack_header *)input_buffer;
1737 hdr->hdr_signature = htonl(PACK_SIGNATURE);
1738 hdr->hdr_version = htonl(strtoul(arg + 14, &c, 10));
1740 die(_("bad %s"), arg);
1741 hdr->hdr_entries = htonl(strtoul(c + 1, &c, 10));
1743 die(_("bad %s"), arg);
1744 input_len = sizeof(*hdr);
1745 } else if (!strcmp(arg, "-v")) {
1747 } else if (!strcmp(arg, "--show-resolving-progress")) {
1748 show_resolving_progress = 1;
1749 } else if (!strcmp(arg, "--report-end-of-input")) {
1750 report_end_of_input = 1;
1751 } else if (!strcmp(arg, "-o")) {
1752 if (index_name || (i+1) >= argc)
1753 usage(index_pack_usage);
1754 index_name = argv[++i];
1755 } else if (starts_with(arg, "--index-version=")) {
1757 opts.version = strtoul(arg + 16, &c, 10);
1758 if (opts.version > 2)
1759 die(_("bad %s"), arg);
1761 opts.off32_limit = strtoul(c+1, &c, 0);
1762 if (*c || opts.off32_limit & 0x80000000)
1763 die(_("bad %s"), arg);
1764 } else if (skip_prefix(arg, "--max-input-size=", &arg)) {
1765 max_input_size = strtoumax(arg, NULL, 10);
1767 usage(index_pack_usage);
1772 usage(index_pack_usage);
1776 if (!pack_name && !from_stdin)
1777 usage(index_pack_usage);
1778 if (fix_thin_pack && !from_stdin)
1779 die(_("--fix-thin cannot be used without --stdin"));
1780 if (from_stdin && !startup_info->have_repository)
1781 die(_("--stdin requires a git repository"));
1782 if (!index_name && pack_name)
1783 index_name = derive_filename(pack_name, "idx", &index_name_buf);
1787 die(_("--verify with no packfile name given"));
1788 read_idx_option(&opts, index_name);
1789 opts.flags |= WRITE_IDX_VERIFY | WRITE_IDX_STRICT;
1792 opts.flags |= WRITE_IDX_STRICT;
1794 if (HAVE_THREADS && !nr_threads) {
1795 nr_threads = online_cpus();
1796 /* An experiment showed that more threads does not mean faster */
1801 curr_pack = open_pack_file(pack_name);
1802 parse_pack_header();
1803 objects = xcalloc(st_add(nr_objects, 1), sizeof(struct object_entry));
1805 obj_stat = xcalloc(st_add(nr_objects, 1), sizeof(struct object_stat));
1806 ofs_deltas = xcalloc(nr_objects, sizeof(struct ofs_delta_entry));
1807 parse_pack_objects(pack_hash);
1808 if (report_end_of_input)
1809 write_in_full(2, "\0", 1);
1811 conclude_pack(fix_thin_pack, curr_pack, pack_hash);
1815 foreign_nr = check_objects();
1818 show_pack_info(stat_only);
1820 ALLOC_ARRAY(idx_objects, nr_objects);
1821 for (i = 0; i < nr_objects; i++)
1822 idx_objects[i] = &objects[i].idx;
1823 curr_index = write_idx_file(index_name, idx_objects, nr_objects, &opts, pack_hash);
1827 final(pack_name, curr_pack,
1828 index_name, curr_index,
1829 keep_msg, promisor_msg,
1834 if (do_fsck_object && fsck_finish(&fsck_options))
1835 die(_("fsck error in pack objects"));
1838 strbuf_release(&index_name_buf);
1839 if (pack_name == NULL)
1840 free((void *) curr_pack);
1841 if (index_name == NULL)
1842 free((void *) curr_index);
1845 * Let the caller know this pack is not self contained
1847 if (check_self_contained_and_connected && foreign_nr)