13 #include "streaming.h"
14 #include "thread-utils.h"
16 static const char index_pack_usage
[] =
17 "git index-pack [-v] [-o <index-file>] [--keep | --keep=<msg>] [--verify] [--strict] (<pack-file> | --stdin [--fix-thin] [<pack-file>])";
20 struct pack_idx_entry idx
;
22 unsigned char hdr_size
;
24 signed char real_type
;
33 struct base_data
*base
;
34 struct base_data
*child
;
35 struct object_entry
*obj
;
38 int ref_first
, ref_last
;
39 int ofs_first
, ofs_last
;
46 struct base_data
*base_cache
;
47 size_t base_cache_used
;
51 #define FLAG_LINK (1u<<20)
52 #define FLAG_CHECKED (1u<<21)
54 struct ofs_delta_entry
{
59 struct ref_delta_entry
{
60 unsigned char sha1
[20];
64 static struct object_entry
*objects
;
65 static struct object_stat
*obj_stat
;
66 static struct ofs_delta_entry
*ofs_deltas
;
67 static struct ref_delta_entry
*ref_deltas
;
68 static struct thread_local nothread_data
;
69 static int nr_objects
;
70 static int nr_ofs_deltas
;
71 static int nr_ref_deltas
;
72 static int ref_deltas_alloc
;
73 static int nr_resolved_deltas
;
74 static int nr_threads
;
76 static int from_stdin
;
78 static int do_fsck_object
;
79 static struct fsck_options fsck_options
= FSCK_OPTIONS_STRICT
;
81 static int show_resolving_progress
;
83 static int check_self_contained_and_connected
;
85 static struct progress
*progress
;
87 /* We always read in 4kB chunks. */
88 static unsigned char input_buffer
[4096];
89 static unsigned int input_offset
, input_len
;
90 static off_t consumed_bytes
;
91 static off_t max_input_size
;
92 static unsigned deepest_delta
;
93 static git_SHA_CTX input_ctx
;
94 static uint32_t input_crc32
;
95 static int input_fd
, output_fd
;
96 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
);
182 #define read_unlock()
184 #define counter_lock()
185 #define counter_unlock()
188 #define work_unlock()
190 #define deepest_delta_lock()
191 #define deepest_delta_unlock()
193 #define type_cas_lock()
194 #define type_cas_unlock()
199 static int mark_link(struct object
*obj
, int type
, void *data
, struct fsck_options
*options
)
204 if (type
!= OBJ_ANY
&& obj
->type
!= type
)
205 die(_("object type mismatch at %s"), oid_to_hex(&obj
->oid
));
207 obj
->flags
|= FLAG_LINK
;
211 /* The content of each linked object must have been checked
212 or it must be already present in the object database */
213 static unsigned check_object(struct object
*obj
)
218 if (!(obj
->flags
& FLAG_LINK
))
221 if (!(obj
->flags
& FLAG_CHECKED
)) {
223 int type
= sha1_object_info(obj
->oid
.hash
, &size
);
225 die(_("did not receive expected object %s"),
226 oid_to_hex(&obj
->oid
));
227 if (type
!= obj
->type
)
228 die(_("object %s: expected type %s, found %s"),
229 oid_to_hex(&obj
->oid
),
230 typename(obj
->type
), typename(type
));
231 obj
->flags
|= FLAG_CHECKED
;
238 static unsigned check_objects(void)
240 unsigned i
, max
, foreign_nr
= 0;
242 max
= get_max_object_index();
243 for (i
= 0; i
< max
; i
++)
244 foreign_nr
+= check_object(get_indexed_object(i
));
249 /* Discard current buffer used content. */
250 static void flush(void)
254 write_or_die(output_fd
, input_buffer
, input_offset
);
255 git_SHA1_Update(&input_ctx
, input_buffer
, input_offset
);
256 memmove(input_buffer
, input_buffer
+ input_offset
, input_len
);
262 * Make sure at least "min" bytes are available in the buffer, and
263 * return the pointer to the buffer.
265 static void *fill(int min
)
267 if (min
<= input_len
)
268 return input_buffer
+ input_offset
;
269 if (min
> sizeof(input_buffer
))
270 die(Q_("cannot fill %d byte",
271 "cannot fill %d bytes",
276 ssize_t ret
= xread(input_fd
, input_buffer
+ input_len
,
277 sizeof(input_buffer
) - input_len
);
281 die_errno(_("read error on input"));
285 display_throughput(progress
, consumed_bytes
+ input_len
);
286 } while (input_len
< min
);
290 static void use(int bytes
)
292 if (bytes
> input_len
)
293 die(_("used more bytes than were available"));
294 input_crc32
= crc32(input_crc32
, input_buffer
+ input_offset
, bytes
);
296 input_offset
+= bytes
;
298 /* make sure off_t is sufficiently large not to wrap */
299 if (signed_add_overflows(consumed_bytes
, bytes
))
300 die(_("pack too large for current definition of off_t"));
301 consumed_bytes
+= bytes
;
302 if (max_input_size
&& consumed_bytes
> max_input_size
)
303 die(_("pack exceeds maximum allowed size"));
306 static const char *open_pack_file(const char *pack_name
)
311 struct strbuf tmp_file
= STRBUF_INIT
;
312 output_fd
= odb_mkstemp(&tmp_file
,
313 "pack/tmp_pack_XXXXXX");
314 pack_name
= strbuf_detach(&tmp_file
, NULL
);
316 output_fd
= open(pack_name
, O_CREAT
|O_EXCL
|O_RDWR
, 0600);
318 die_errno(_("unable to create '%s'"), pack_name
);
320 nothread_data
.pack_fd
= output_fd
;
322 input_fd
= open(pack_name
, O_RDONLY
);
324 die_errno(_("cannot open packfile '%s'"), pack_name
);
326 nothread_data
.pack_fd
= input_fd
;
328 git_SHA1_Init(&input_ctx
);
332 static void parse_pack_header(void)
334 struct pack_header
*hdr
= fill(sizeof(struct pack_header
));
336 /* Header consistency check */
337 if (hdr
->hdr_signature
!= htonl(PACK_SIGNATURE
))
338 die(_("pack signature mismatch"));
339 if (!pack_version_ok(hdr
->hdr_version
))
340 die(_("pack version %"PRIu32
" unsupported"),
341 ntohl(hdr
->hdr_version
));
343 nr_objects
= ntohl(hdr
->hdr_entries
);
344 use(sizeof(struct pack_header
));
347 static NORETURN
void bad_object(off_t offset
, const char *format
,
348 ...) __attribute__((format (printf
, 2, 3)));
350 static NORETURN
void bad_object(off_t offset
, const char *format
, ...)
355 va_start(params
, format
);
356 vsnprintf(buf
, sizeof(buf
), format
, params
);
358 die(_("pack has bad object at offset %"PRIuMAX
": %s"),
359 (uintmax_t)offset
, buf
);
362 static inline struct thread_local
*get_thread_data(void)
366 return pthread_getspecific(key
);
367 assert(!threads_active
&&
368 "This should only be reached when all threads are gone");
370 return ¬hread_data
;
374 static void set_thread_data(struct thread_local
*data
)
377 pthread_setspecific(key
, data
);
381 static struct base_data
*alloc_base_data(void)
383 struct base_data
*base
= xcalloc(1, sizeof(struct base_data
));
389 static void free_base_data(struct base_data
*c
)
392 FREE_AND_NULL(c
->data
);
393 get_thread_data()->base_cache_used
-= c
->size
;
397 static void prune_base_data(struct base_data
*retain
)
400 struct thread_local
*data
= get_thread_data();
401 for (b
= data
->base_cache
;
402 data
->base_cache_used
> delta_base_cache_limit
&& b
;
404 if (b
->data
&& b
!= retain
)
409 static void link_base_data(struct base_data
*base
, struct base_data
*c
)
414 get_thread_data()->base_cache
= c
;
419 get_thread_data()->base_cache_used
+= c
->size
;
423 static void unlink_base_data(struct base_data
*c
)
425 struct base_data
*base
= c
->base
;
429 get_thread_data()->base_cache
= NULL
;
433 static int is_delta_type(enum object_type type
)
435 return (type
== OBJ_REF_DELTA
|| type
== OBJ_OFS_DELTA
);
438 static void *unpack_entry_data(off_t offset
, unsigned long size
,
439 enum object_type type
, unsigned char *sha1
)
441 static char fixed_buf
[8192];
449 if (!is_delta_type(type
)) {
450 hdrlen
= xsnprintf(hdr
, sizeof(hdr
), "%s %lu", typename(type
), size
) + 1;
452 git_SHA1_Update(&c
, hdr
, hdrlen
);
455 if (type
== OBJ_BLOB
&& size
> big_file_threshold
)
458 buf
= xmallocz(size
);
460 memset(&stream
, 0, sizeof(stream
));
461 git_inflate_init(&stream
);
462 stream
.next_out
= buf
;
463 stream
.avail_out
= buf
== fixed_buf
? sizeof(fixed_buf
) : size
;
466 unsigned char *last_out
= stream
.next_out
;
467 stream
.next_in
= fill(1);
468 stream
.avail_in
= input_len
;
469 status
= git_inflate(&stream
, 0);
470 use(input_len
- stream
.avail_in
);
472 git_SHA1_Update(&c
, last_out
, stream
.next_out
- last_out
);
473 if (buf
== fixed_buf
) {
474 stream
.next_out
= buf
;
475 stream
.avail_out
= sizeof(fixed_buf
);
477 } while (status
== Z_OK
);
478 if (stream
.total_out
!= size
|| status
!= Z_STREAM_END
)
479 bad_object(offset
, _("inflate returned %d"), status
);
480 git_inflate_end(&stream
);
482 git_SHA1_Final(sha1
, &c
);
483 return buf
== fixed_buf
? NULL
: buf
;
486 static void *unpack_raw_entry(struct object_entry
*obj
,
488 unsigned char *ref_sha1
,
492 unsigned long size
, c
;
497 obj
->idx
.offset
= consumed_bytes
;
498 input_crc32
= crc32(0, NULL
, 0);
503 obj
->type
= (c
>> 4) & 7;
510 size
+= (c
& 0x7f) << shift
;
517 hashcpy(ref_sha1
, fill(20));
524 base_offset
= c
& 127;
527 if (!base_offset
|| MSB(base_offset
, 7))
528 bad_object(obj
->idx
.offset
, _("offset value overflow for delta base object"));
532 base_offset
= (base_offset
<< 7) + (c
& 127);
534 *ofs_offset
= obj
->idx
.offset
- base_offset
;
535 if (*ofs_offset
<= 0 || *ofs_offset
>= obj
->idx
.offset
)
536 bad_object(obj
->idx
.offset
, _("delta base offset is out of bound"));
544 bad_object(obj
->idx
.offset
, _("unknown object type %d"), obj
->type
);
546 obj
->hdr_size
= consumed_bytes
- obj
->idx
.offset
;
548 data
= unpack_entry_data(obj
->idx
.offset
, obj
->size
, obj
->type
, sha1
);
549 obj
->idx
.crc32
= input_crc32
;
553 static void *unpack_data(struct object_entry
*obj
,
554 int (*consume
)(const unsigned char *, unsigned long, void *),
557 off_t from
= obj
[0].idx
.offset
+ obj
[0].hdr_size
;
558 off_t len
= obj
[1].idx
.offset
- from
;
559 unsigned char *data
, *inbuf
;
563 data
= xmallocz(consume
? 64*1024 : obj
->size
);
564 inbuf
= xmalloc((len
< 64*1024) ? (int)len
: 64*1024);
566 memset(&stream
, 0, sizeof(stream
));
567 git_inflate_init(&stream
);
568 stream
.next_out
= data
;
569 stream
.avail_out
= consume
? 64*1024 : obj
->size
;
572 ssize_t n
= (len
< 64*1024) ? (ssize_t
)len
: 64*1024;
573 n
= xpread(get_thread_data()->pack_fd
, inbuf
, n
, from
);
575 die_errno(_("cannot pread pack file"));
577 die(Q_("premature end of pack file, %"PRIuMAX
" byte missing",
578 "premature end of pack file, %"PRIuMAX
" bytes missing",
583 stream
.next_in
= inbuf
;
586 status
= git_inflate(&stream
, 0);
589 status
= git_inflate(&stream
, 0);
590 if (consume(data
, stream
.next_out
- data
, cb_data
)) {
595 stream
.next_out
= data
;
596 stream
.avail_out
= 64*1024;
597 } while (status
== Z_OK
&& stream
.avail_in
);
599 } while (len
&& status
== Z_OK
&& !stream
.avail_in
);
601 /* This has been inflated OK when first encountered, so... */
602 if (status
!= Z_STREAM_END
|| stream
.total_out
!= obj
->size
)
603 die(_("serious inflate inconsistency"));
605 git_inflate_end(&stream
);
613 static void *get_data_from_pack(struct object_entry
*obj
)
615 return unpack_data(obj
, NULL
, NULL
);
618 static int compare_ofs_delta_bases(off_t offset1
, off_t offset2
,
619 enum object_type type1
,
620 enum object_type type2
)
622 int cmp
= type1
- type2
;
625 return offset1
< offset2
? -1 :
626 offset1
> offset2
? 1 :
630 static int find_ofs_delta(const off_t offset
, enum object_type type
)
632 int first
= 0, last
= nr_ofs_deltas
;
634 while (first
< last
) {
635 int next
= (first
+ last
) / 2;
636 struct ofs_delta_entry
*delta
= &ofs_deltas
[next
];
639 cmp
= compare_ofs_delta_bases(offset
, delta
->offset
,
640 type
, objects
[delta
->obj_no
].type
);
652 static void find_ofs_delta_children(off_t offset
,
653 int *first_index
, int *last_index
,
654 enum object_type type
)
656 int first
= find_ofs_delta(offset
, type
);
658 int end
= nr_ofs_deltas
- 1;
665 while (first
> 0 && ofs_deltas
[first
- 1].offset
== offset
)
667 while (last
< end
&& ofs_deltas
[last
+ 1].offset
== offset
)
669 *first_index
= first
;
673 static int compare_ref_delta_bases(const unsigned char *sha1
,
674 const unsigned char *sha2
,
675 enum object_type type1
,
676 enum object_type type2
)
678 int cmp
= type1
- type2
;
681 return hashcmp(sha1
, sha2
);
684 static int find_ref_delta(const unsigned char *sha1
, enum object_type type
)
686 int first
= 0, last
= nr_ref_deltas
;
688 while (first
< last
) {
689 int next
= (first
+ last
) / 2;
690 struct ref_delta_entry
*delta
= &ref_deltas
[next
];
693 cmp
= compare_ref_delta_bases(sha1
, delta
->sha1
,
694 type
, objects
[delta
->obj_no
].type
);
706 static void find_ref_delta_children(const unsigned char *sha1
,
707 int *first_index
, int *last_index
,
708 enum object_type type
)
710 int first
= find_ref_delta(sha1
, type
);
712 int end
= nr_ref_deltas
- 1;
719 while (first
> 0 && !hashcmp(ref_deltas
[first
- 1].sha1
, sha1
))
721 while (last
< end
&& !hashcmp(ref_deltas
[last
+ 1].sha1
, sha1
))
723 *first_index
= first
;
727 struct compare_data
{
728 struct object_entry
*entry
;
729 struct git_istream
*st
;
731 unsigned long buf_size
;
734 static int compare_objects(const unsigned char *buf
, unsigned long size
,
737 struct compare_data
*data
= cb_data
;
739 if (data
->buf_size
< size
) {
741 data
->buf
= xmalloc(size
);
742 data
->buf_size
= size
;
746 ssize_t len
= read_istream(data
->st
, data
->buf
, size
);
748 die(_("SHA1 COLLISION FOUND WITH %s !"),
749 oid_to_hex(&data
->entry
->idx
.oid
));
751 die(_("unable to read %s"),
752 oid_to_hex(&data
->entry
->idx
.oid
));
753 if (memcmp(buf
, data
->buf
, len
))
754 die(_("SHA1 COLLISION FOUND WITH %s !"),
755 oid_to_hex(&data
->entry
->idx
.oid
));
762 static int check_collison(struct object_entry
*entry
)
764 struct compare_data data
;
765 enum object_type type
;
768 if (entry
->size
<= big_file_threshold
|| entry
->type
!= OBJ_BLOB
)
771 memset(&data
, 0, sizeof(data
));
773 data
.st
= open_istream(entry
->idx
.oid
.hash
, &type
, &size
, NULL
);
776 if (size
!= entry
->size
|| type
!= entry
->type
)
777 die(_("SHA1 COLLISION FOUND WITH %s !"),
778 oid_to_hex(&entry
->idx
.oid
));
779 unpack_data(entry
, compare_objects
, &data
);
780 close_istream(data
.st
);
785 static void sha1_object(const void *data
, struct object_entry
*obj_entry
,
786 unsigned long size
, enum object_type type
,
787 const struct object_id
*oid
)
789 void *new_data
= NULL
;
790 int collision_test_needed
= 0;
792 assert(data
|| obj_entry
);
794 if (startup_info
->have_repository
) {
796 collision_test_needed
=
797 has_sha1_file_with_flags(oid
->hash
, OBJECT_INFO_QUICK
);
801 if (collision_test_needed
&& !data
) {
803 if (!check_collison(obj_entry
))
804 collision_test_needed
= 0;
807 if (collision_test_needed
) {
809 enum object_type has_type
;
810 unsigned long has_size
;
812 has_type
= sha1_object_info(oid
->hash
, &has_size
);
814 die(_("cannot read existing object info %s"), oid_to_hex(oid
));
815 if (has_type
!= type
|| has_size
!= size
)
816 die(_("SHA1 COLLISION FOUND WITH %s !"), oid_to_hex(oid
));
817 has_data
= read_sha1_file(oid
->hash
, &has_type
, &has_size
);
820 data
= new_data
= get_data_from_pack(obj_entry
);
822 die(_("cannot read existing object %s"), oid_to_hex(oid
));
823 if (size
!= has_size
|| type
!= has_type
||
824 memcmp(data
, has_data
, size
) != 0)
825 die(_("SHA1 COLLISION FOUND WITH %s !"), oid_to_hex(oid
));
831 if (type
== OBJ_BLOB
) {
832 struct blob
*blob
= lookup_blob(oid
);
834 blob
->object
.flags
|= FLAG_CHECKED
;
836 die(_("invalid blob object %s"), oid_to_hex(oid
));
840 void *buf
= (void *) data
;
842 assert(data
&& "data can only be NULL for large _blobs_");
845 * we do not need to free the memory here, as the
846 * buf is deleted by the caller.
848 obj
= parse_object_buffer(oid
, type
, size
, buf
,
851 die(_("invalid %s"), typename(type
));
852 if (do_fsck_object
&&
853 fsck_object(obj
, buf
, size
, &fsck_options
))
854 die(_("Error in object"));
855 if (fsck_walk(obj
, NULL
, &fsck_options
))
856 die(_("Not all child objects of %s are reachable"), oid_to_hex(&obj
->oid
));
858 if (obj
->type
== OBJ_TREE
) {
859 struct tree
*item
= (struct tree
*) obj
;
863 if (obj
->type
== OBJ_COMMIT
) {
864 struct commit
*commit
= (struct commit
*) obj
;
865 if (detach_commit_buffer(commit
, NULL
) != data
)
866 die("BUG: parse_object_buffer transmogrified our buffer");
868 obj
->flags
|= FLAG_CHECKED
;
877 * This function is part of find_unresolved_deltas(). There are two
878 * walkers going in the opposite ways.
880 * The first one in find_unresolved_deltas() traverses down from
881 * parent node to children, deflating nodes along the way. However,
882 * memory for deflated nodes is limited by delta_base_cache_limit, so
883 * at some point parent node's deflated content may be freed.
885 * The second walker is this function, which goes from current node up
886 * to top parent if necessary to deflate the node. In normal
887 * situation, its parent node would be already deflated, so it just
888 * needs to apply delta.
890 * In the worst case scenario, parent node is no longer deflated because
891 * we're running out of delta_base_cache_limit; we need to re-deflate
892 * parents, possibly up to the top base.
894 * All deflated objects here are subject to be freed if we exceed
895 * delta_base_cache_limit, just like in find_unresolved_deltas(), we
896 * just need to make sure the last node is not freed.
898 static void *get_base_data(struct base_data
*c
)
901 struct object_entry
*obj
= c
->obj
;
902 struct base_data
**delta
= NULL
;
903 int delta_nr
= 0, delta_alloc
= 0;
905 while (is_delta_type(c
->obj
->type
) && !c
->data
) {
906 ALLOC_GROW(delta
, delta_nr
+ 1, delta_alloc
);
907 delta
[delta_nr
++] = c
;
911 c
->data
= get_data_from_pack(obj
);
913 get_thread_data()->base_cache_used
+= c
->size
;
916 for (; delta_nr
> 0; delta_nr
--) {
918 c
= delta
[delta_nr
- 1];
920 base
= get_base_data(c
->base
);
921 raw
= get_data_from_pack(obj
);
922 c
->data
= patch_delta(
928 bad_object(obj
->idx
.offset
, _("failed to apply delta"));
929 get_thread_data()->base_cache_used
+= c
->size
;
937 static void resolve_delta(struct object_entry
*delta_obj
,
938 struct base_data
*base
, struct base_data
*result
)
940 void *base_data
, *delta_data
;
943 int i
= delta_obj
- objects
;
944 int j
= base
->obj
- objects
;
945 obj_stat
[i
].delta_depth
= obj_stat
[j
].delta_depth
+ 1;
946 deepest_delta_lock();
947 if (deepest_delta
< obj_stat
[i
].delta_depth
)
948 deepest_delta
= obj_stat
[i
].delta_depth
;
949 deepest_delta_unlock();
950 obj_stat
[i
].base_object_no
= j
;
952 delta_data
= get_data_from_pack(delta_obj
);
953 base_data
= get_base_data(base
);
954 result
->obj
= delta_obj
;
955 result
->data
= patch_delta(base_data
, base
->size
,
956 delta_data
, delta_obj
->size
, &result
->size
);
959 bad_object(delta_obj
->idx
.offset
, _("failed to apply delta"));
960 hash_sha1_file(result
->data
, result
->size
,
961 typename(delta_obj
->real_type
),
962 delta_obj
->idx
.oid
.hash
);
963 sha1_object(result
->data
, NULL
, result
->size
, delta_obj
->real_type
,
964 &delta_obj
->idx
.oid
);
966 nr_resolved_deltas
++;
971 * Standard boolean compare-and-swap: atomically check whether "*type" is
972 * "want"; if so, swap in "set" and return true. Otherwise, leave it untouched
975 static int compare_and_swap_type(signed char *type
,
976 enum object_type want
,
977 enum object_type set
)
979 enum object_type old
;
990 static struct base_data
*find_unresolved_deltas_1(struct base_data
*base
,
991 struct base_data
*prev_base
)
993 if (base
->ref_last
== -1 && base
->ofs_last
== -1) {
994 find_ref_delta_children(base
->obj
->idx
.oid
.hash
,
995 &base
->ref_first
, &base
->ref_last
,
998 find_ofs_delta_children(base
->obj
->idx
.offset
,
999 &base
->ofs_first
, &base
->ofs_last
,
1002 if (base
->ref_last
== -1 && base
->ofs_last
== -1) {
1007 link_base_data(prev_base
, base
);
1010 if (base
->ref_first
<= base
->ref_last
) {
1011 struct object_entry
*child
= objects
+ ref_deltas
[base
->ref_first
].obj_no
;
1012 struct base_data
*result
= alloc_base_data();
1014 if (!compare_and_swap_type(&child
->real_type
, OBJ_REF_DELTA
,
1015 base
->obj
->real_type
))
1016 die("BUG: child->real_type != OBJ_REF_DELTA");
1018 resolve_delta(child
, base
, result
);
1019 if (base
->ref_first
== base
->ref_last
&& base
->ofs_last
== -1)
1020 free_base_data(base
);
1026 if (base
->ofs_first
<= base
->ofs_last
) {
1027 struct object_entry
*child
= objects
+ ofs_deltas
[base
->ofs_first
].obj_no
;
1028 struct base_data
*result
= alloc_base_data();
1030 assert(child
->real_type
== OBJ_OFS_DELTA
);
1031 child
->real_type
= base
->obj
->real_type
;
1032 resolve_delta(child
, base
, result
);
1033 if (base
->ofs_first
== base
->ofs_last
)
1034 free_base_data(base
);
1040 unlink_base_data(base
);
1044 static void find_unresolved_deltas(struct base_data
*base
)
1046 struct base_data
*new_base
, *prev_base
= NULL
;
1048 new_base
= find_unresolved_deltas_1(base
, prev_base
);
1058 prev_base
= base
->base
;
1063 static int compare_ofs_delta_entry(const void *a
, const void *b
)
1065 const struct ofs_delta_entry
*delta_a
= a
;
1066 const struct ofs_delta_entry
*delta_b
= b
;
1068 return delta_a
->offset
< delta_b
->offset
? -1 :
1069 delta_a
->offset
> delta_b
->offset
? 1 :
1073 static int compare_ref_delta_entry(const void *a
, const void *b
)
1075 const struct ref_delta_entry
*delta_a
= a
;
1076 const struct ref_delta_entry
*delta_b
= b
;
1078 return hashcmp(delta_a
->sha1
, delta_b
->sha1
);
1081 static void resolve_base(struct object_entry
*obj
)
1083 struct base_data
*base_obj
= alloc_base_data();
1084 base_obj
->obj
= obj
;
1085 base_obj
->data
= NULL
;
1086 find_unresolved_deltas(base_obj
);
1090 static void *threaded_second_pass(void *data
)
1092 set_thread_data(data
);
1096 display_progress(progress
, nr_resolved_deltas
);
1099 while (nr_dispatched
< nr_objects
&&
1100 is_delta_type(objects
[nr_dispatched
].type
))
1102 if (nr_dispatched
>= nr_objects
) {
1106 i
= nr_dispatched
++;
1109 resolve_base(&objects
[i
]);
1117 * - find locations of all objects;
1118 * - calculate SHA1 of all non-delta objects;
1119 * - remember base (SHA1 or offset) for all deltas.
1121 static void parse_pack_objects(unsigned char *sha1
)
1123 int i
, nr_delays
= 0;
1124 struct ofs_delta_entry
*ofs_delta
= ofs_deltas
;
1125 unsigned char ref_delta_sha1
[20];
1129 progress
= start_progress(
1130 from_stdin
? _("Receiving objects") : _("Indexing objects"),
1132 for (i
= 0; i
< nr_objects
; i
++) {
1133 struct object_entry
*obj
= &objects
[i
];
1134 void *data
= unpack_raw_entry(obj
, &ofs_delta
->offset
,
1137 obj
->real_type
= obj
->type
;
1138 if (obj
->type
== OBJ_OFS_DELTA
) {
1140 ofs_delta
->obj_no
= i
;
1142 } else if (obj
->type
== OBJ_REF_DELTA
) {
1143 ALLOC_GROW(ref_deltas
, nr_ref_deltas
+ 1, ref_deltas_alloc
);
1144 hashcpy(ref_deltas
[nr_ref_deltas
].sha1
, ref_delta_sha1
);
1145 ref_deltas
[nr_ref_deltas
].obj_no
= i
;
1148 /* large blobs, check later */
1149 obj
->real_type
= OBJ_BAD
;
1152 sha1_object(data
, NULL
, obj
->size
, obj
->type
,
1155 display_progress(progress
, i
+1);
1157 objects
[i
].idx
.offset
= consumed_bytes
;
1158 stop_progress(&progress
);
1160 /* Check pack integrity */
1162 git_SHA1_Final(sha1
, &input_ctx
);
1163 if (hashcmp(fill(20), sha1
))
1164 die(_("pack is corrupted (SHA1 mismatch)"));
1167 /* If input_fd is a file, we should have reached its end now. */
1168 if (fstat(input_fd
, &st
))
1169 die_errno(_("cannot fstat packfile"));
1170 if (S_ISREG(st
.st_mode
) &&
1171 lseek(input_fd
, 0, SEEK_CUR
) - input_len
!= st
.st_size
)
1172 die(_("pack has junk at the end"));
1174 for (i
= 0; i
< nr_objects
; i
++) {
1175 struct object_entry
*obj
= &objects
[i
];
1176 if (obj
->real_type
!= OBJ_BAD
)
1178 obj
->real_type
= obj
->type
;
1179 sha1_object(NULL
, obj
, obj
->size
, obj
->type
,
1184 die(_("confusion beyond insanity in parse_pack_objects()"));
1189 * - for all non-delta objects, look if it is used as a base for
1191 * - if used as a base, uncompress the object and apply all deltas,
1192 * recursively checking if the resulting object is used as a base
1193 * for some more deltas.
1195 static void resolve_deltas(void)
1199 if (!nr_ofs_deltas
&& !nr_ref_deltas
)
1202 /* Sort deltas by base SHA1/offset for fast searching */
1203 QSORT(ofs_deltas
, nr_ofs_deltas
, compare_ofs_delta_entry
);
1204 QSORT(ref_deltas
, nr_ref_deltas
, compare_ref_delta_entry
);
1206 if (verbose
|| show_resolving_progress
)
1207 progress
= start_progress(_("Resolving deltas"),
1208 nr_ref_deltas
+ nr_ofs_deltas
);
1212 if (nr_threads
> 1 || getenv("GIT_FORCE_THREADS")) {
1214 for (i
= 0; i
< nr_threads
; i
++) {
1215 int ret
= pthread_create(&thread_data
[i
].thread
, NULL
,
1216 threaded_second_pass
, thread_data
+ i
);
1218 die(_("unable to create thread: %s"),
1221 for (i
= 0; i
< nr_threads
; i
++)
1222 pthread_join(thread_data
[i
].thread
, NULL
);
1228 for (i
= 0; i
< nr_objects
; i
++) {
1229 struct object_entry
*obj
= &objects
[i
];
1231 if (is_delta_type(obj
->type
))
1234 display_progress(progress
, nr_resolved_deltas
);
1240 * - append objects to convert thin pack to full pack if required
1241 * - write the final 20-byte SHA-1
1243 static void fix_unresolved_deltas(struct sha1file
*f
);
1244 static void conclude_pack(int fix_thin_pack
, const char *curr_pack
, unsigned char *pack_sha1
)
1246 if (nr_ref_deltas
+ nr_ofs_deltas
== nr_resolved_deltas
) {
1247 stop_progress(&progress
);
1248 /* Flush remaining pack final 20-byte SHA1. */
1253 if (fix_thin_pack
) {
1255 unsigned char read_sha1
[20], tail_sha1
[20];
1256 struct strbuf msg
= STRBUF_INIT
;
1257 int nr_unresolved
= nr_ofs_deltas
+ nr_ref_deltas
- nr_resolved_deltas
;
1258 int nr_objects_initial
= nr_objects
;
1259 if (nr_unresolved
<= 0)
1260 die(_("confusion beyond insanity"));
1261 REALLOC_ARRAY(objects
, nr_objects
+ nr_unresolved
+ 1);
1262 memset(objects
+ nr_objects
+ 1, 0,
1263 nr_unresolved
* sizeof(*objects
));
1264 f
= sha1fd(output_fd
, curr_pack
);
1265 fix_unresolved_deltas(f
);
1266 strbuf_addf(&msg
, Q_("completed with %d local object",
1267 "completed with %d local objects",
1268 nr_objects
- nr_objects_initial
),
1269 nr_objects
- nr_objects_initial
);
1270 stop_progress_msg(&progress
, msg
.buf
);
1271 strbuf_release(&msg
);
1272 sha1close(f
, tail_sha1
, 0);
1273 hashcpy(read_sha1
, pack_sha1
);
1274 fixup_pack_header_footer(output_fd
, pack_sha1
,
1275 curr_pack
, nr_objects
,
1276 read_sha1
, consumed_bytes
-20);
1277 if (hashcmp(read_sha1
, tail_sha1
) != 0)
1278 die(_("Unexpected tail checksum for %s "
1279 "(disk corruption?)"), curr_pack
);
1281 if (nr_ofs_deltas
+ nr_ref_deltas
!= nr_resolved_deltas
)
1282 die(Q_("pack has %d unresolved delta",
1283 "pack has %d unresolved deltas",
1284 nr_ofs_deltas
+ nr_ref_deltas
- nr_resolved_deltas
),
1285 nr_ofs_deltas
+ nr_ref_deltas
- nr_resolved_deltas
);
1288 static int write_compressed(struct sha1file
*f
, void *in
, unsigned int size
)
1292 unsigned char outbuf
[4096];
1294 git_deflate_init(&stream
, zlib_compression_level
);
1295 stream
.next_in
= in
;
1296 stream
.avail_in
= size
;
1299 stream
.next_out
= outbuf
;
1300 stream
.avail_out
= sizeof(outbuf
);
1301 status
= git_deflate(&stream
, Z_FINISH
);
1302 sha1write(f
, outbuf
, sizeof(outbuf
) - stream
.avail_out
);
1303 } while (status
== Z_OK
);
1305 if (status
!= Z_STREAM_END
)
1306 die(_("unable to deflate appended object (%d)"), status
);
1307 size
= stream
.total_out
;
1308 git_deflate_end(&stream
);
1312 static struct object_entry
*append_obj_to_pack(struct sha1file
*f
,
1313 const unsigned char *sha1
, void *buf
,
1314 unsigned long size
, enum object_type type
)
1316 struct object_entry
*obj
= &objects
[nr_objects
++];
1317 unsigned char header
[10];
1318 unsigned long s
= size
;
1320 unsigned char c
= (type
<< 4) | (s
& 15);
1323 header
[n
++] = c
| 0x80;
1329 sha1write(f
, header
, n
);
1331 obj
[0].hdr_size
= n
;
1333 obj
[0].real_type
= type
;
1334 obj
[1].idx
.offset
= obj
[0].idx
.offset
+ n
;
1335 obj
[1].idx
.offset
+= write_compressed(f
, buf
, size
);
1336 obj
[0].idx
.crc32
= crc32_end(f
);
1338 hashcpy(obj
->idx
.oid
.hash
, sha1
);
1342 static int delta_pos_compare(const void *_a
, const void *_b
)
1344 struct ref_delta_entry
*a
= *(struct ref_delta_entry
**)_a
;
1345 struct ref_delta_entry
*b
= *(struct ref_delta_entry
**)_b
;
1346 return a
->obj_no
- b
->obj_no
;
1349 static void fix_unresolved_deltas(struct sha1file
*f
)
1351 struct ref_delta_entry
**sorted_by_pos
;
1355 * Since many unresolved deltas may well be themselves base objects
1356 * for more unresolved deltas, we really want to include the
1357 * smallest number of base objects that would cover as much delta
1358 * as possible by picking the
1359 * trunc deltas first, allowing for other deltas to resolve without
1360 * additional base objects. Since most base objects are to be found
1361 * before deltas depending on them, a good heuristic is to start
1362 * resolving deltas in the same order as their position in the pack.
1364 ALLOC_ARRAY(sorted_by_pos
, nr_ref_deltas
);
1365 for (i
= 0; i
< nr_ref_deltas
; i
++)
1366 sorted_by_pos
[i
] = &ref_deltas
[i
];
1367 QSORT(sorted_by_pos
, nr_ref_deltas
, delta_pos_compare
);
1369 for (i
= 0; i
< nr_ref_deltas
; i
++) {
1370 struct ref_delta_entry
*d
= sorted_by_pos
[i
];
1371 enum object_type type
;
1372 struct base_data
*base_obj
= alloc_base_data();
1374 if (objects
[d
->obj_no
].real_type
!= OBJ_REF_DELTA
)
1376 base_obj
->data
= read_sha1_file(d
->sha1
, &type
, &base_obj
->size
);
1377 if (!base_obj
->data
)
1380 if (check_sha1_signature(d
->sha1
, base_obj
->data
,
1381 base_obj
->size
, typename(type
)))
1382 die(_("local object %s is corrupt"), sha1_to_hex(d
->sha1
));
1383 base_obj
->obj
= append_obj_to_pack(f
, d
->sha1
,
1384 base_obj
->data
, base_obj
->size
, type
);
1385 find_unresolved_deltas(base_obj
);
1386 display_progress(progress
, nr_resolved_deltas
);
1388 free(sorted_by_pos
);
1391 static void final(const char *final_pack_name
, const char *curr_pack_name
,
1392 const char *final_index_name
, const char *curr_index_name
,
1393 const char *keep_name
, const char *keep_msg
,
1394 unsigned char *sha1
)
1396 const char *report
= "pack";
1397 struct strbuf pack_name
= STRBUF_INIT
;
1398 struct strbuf index_name
= STRBUF_INIT
;
1399 struct strbuf keep_name_buf
= STRBUF_INIT
;
1405 fsync_or_die(output_fd
, curr_pack_name
);
1406 err
= close(output_fd
);
1408 die_errno(_("error while closing pack file"));
1412 int keep_fd
, keep_msg_len
= strlen(keep_msg
);
1415 keep_name
= odb_pack_name(&keep_name_buf
, sha1
, "keep");
1417 keep_fd
= odb_pack_keep(keep_name
);
1419 if (errno
!= EEXIST
)
1420 die_errno(_("cannot write keep file '%s'"),
1423 if (keep_msg_len
> 0) {
1424 write_or_die(keep_fd
, keep_msg
, keep_msg_len
);
1425 write_or_die(keep_fd
, "\n", 1);
1427 if (close(keep_fd
) != 0)
1428 die_errno(_("cannot close written keep file '%s'"),
1434 if (final_pack_name
!= curr_pack_name
) {
1435 if (!final_pack_name
)
1436 final_pack_name
= odb_pack_name(&pack_name
, sha1
, "pack");
1437 if (finalize_object_file(curr_pack_name
, final_pack_name
))
1438 die(_("cannot store pack file"));
1439 } else if (from_stdin
)
1440 chmod(final_pack_name
, 0444);
1442 if (final_index_name
!= curr_index_name
) {
1443 if (!final_index_name
)
1444 final_index_name
= odb_pack_name(&index_name
, sha1
, "idx");
1445 if (finalize_object_file(curr_index_name
, final_index_name
))
1446 die(_("cannot store index file"));
1448 chmod(final_index_name
, 0444);
1451 printf("%s\n", sha1_to_hex(sha1
));
1453 struct strbuf buf
= STRBUF_INIT
;
1455 strbuf_addf(&buf
, "%s\t%s\n", report
, sha1_to_hex(sha1
));
1456 write_or_die(1, buf
.buf
, buf
.len
);
1457 strbuf_release(&buf
);
1460 * Let's just mimic git-unpack-objects here and write
1461 * the last part of the input buffer to stdout.
1464 err
= xwrite(1, input_buffer
+ input_offset
, input_len
);
1468 input_offset
+= err
;
1472 strbuf_release(&index_name
);
1473 strbuf_release(&pack_name
);
1474 strbuf_release(&keep_name_buf
);
1477 static int git_index_pack_config(const char *k
, const char *v
, void *cb
)
1479 struct pack_idx_option
*opts
= cb
;
1481 if (!strcmp(k
, "pack.indexversion")) {
1482 opts
->version
= git_config_int(k
, v
);
1483 if (opts
->version
> 2)
1484 die(_("bad pack.indexversion=%"PRIu32
), opts
->version
);
1487 if (!strcmp(k
, "pack.threads")) {
1488 nr_threads
= git_config_int(k
, v
);
1490 die(_("invalid number of threads specified (%d)"),
1493 if (nr_threads
!= 1)
1494 warning(_("no threads support, ignoring %s"), k
);
1499 return git_default_config(k
, v
, cb
);
1502 static int cmp_uint32(const void *a_
, const void *b_
)
1504 uint32_t a
= *((uint32_t *)a_
);
1505 uint32_t b
= *((uint32_t *)b_
);
1507 return (a
< b
) ? -1 : (a
!= b
);
1510 static void read_v2_anomalous_offsets(struct packed_git
*p
,
1511 struct pack_idx_option
*opts
)
1513 const uint32_t *idx1
, *idx2
;
1516 /* The address of the 4-byte offset table */
1517 idx1
= (((const uint32_t *)p
->index_data
)
1518 + 2 /* 8-byte header */
1520 + 5 * p
->num_objects
/* 20-byte SHA-1 table */
1521 + p
->num_objects
/* CRC32 table */
1524 /* The address of the 8-byte offset table */
1525 idx2
= idx1
+ p
->num_objects
;
1527 for (i
= 0; i
< p
->num_objects
; i
++) {
1528 uint32_t off
= ntohl(idx1
[i
]);
1529 if (!(off
& 0x80000000))
1531 off
= off
& 0x7fffffff;
1532 check_pack_index_ptr(p
, &idx2
[off
* 2]);
1536 * The real offset is ntohl(idx2[off * 2]) in high 4
1537 * octets, and ntohl(idx2[off * 2 + 1]) in low 4
1538 * octets. But idx2[off * 2] is Zero!!!
1540 ALLOC_GROW(opts
->anomaly
, opts
->anomaly_nr
+ 1, opts
->anomaly_alloc
);
1541 opts
->anomaly
[opts
->anomaly_nr
++] = ntohl(idx2
[off
* 2 + 1]);
1544 QSORT(opts
->anomaly
, opts
->anomaly_nr
, cmp_uint32
);
1547 static void read_idx_option(struct pack_idx_option
*opts
, const char *pack_name
)
1549 struct packed_git
*p
= add_packed_git(pack_name
, strlen(pack_name
), 1);
1552 die(_("Cannot open existing pack file '%s'"), pack_name
);
1553 if (open_pack_index(p
))
1554 die(_("Cannot open existing pack idx file for '%s'"), pack_name
);
1556 /* Read the attributes from the existing idx file */
1557 opts
->version
= p
->index_version
;
1559 if (opts
->version
== 2)
1560 read_v2_anomalous_offsets(p
, opts
);
1563 * Get rid of the idx file as we do not need it anymore.
1564 * NEEDSWORK: extract this bit from free_pack_by_name() in
1565 * sha1_file.c, perhaps? It shouldn't matter very much as we
1566 * know we haven't installed this pack (hence we never have
1567 * read anything from it).
1569 close_pack_index(p
);
1573 static void show_pack_info(int stat_only
)
1575 int i
, baseobjects
= nr_objects
- nr_ref_deltas
- nr_ofs_deltas
;
1576 unsigned long *chain_histogram
= NULL
;
1579 chain_histogram
= xcalloc(deepest_delta
, sizeof(unsigned long));
1581 for (i
= 0; i
< nr_objects
; i
++) {
1582 struct object_entry
*obj
= &objects
[i
];
1584 if (is_delta_type(obj
->type
))
1585 chain_histogram
[obj_stat
[i
].delta_depth
- 1]++;
1588 printf("%s %-6s %lu %lu %"PRIuMAX
,
1589 oid_to_hex(&obj
->idx
.oid
),
1590 typename(obj
->real_type
), obj
->size
,
1591 (unsigned long)(obj
[1].idx
.offset
- obj
->idx
.offset
),
1592 (uintmax_t)obj
->idx
.offset
);
1593 if (is_delta_type(obj
->type
)) {
1594 struct object_entry
*bobj
= &objects
[obj_stat
[i
].base_object_no
];
1595 printf(" %u %s", obj_stat
[i
].delta_depth
,
1596 oid_to_hex(&bobj
->idx
.oid
));
1602 printf_ln(Q_("non delta: %d object",
1603 "non delta: %d objects",
1606 for (i
= 0; i
< deepest_delta
; i
++) {
1607 if (!chain_histogram
[i
])
1609 printf_ln(Q_("chain length = %d: %lu object",
1610 "chain length = %d: %lu objects",
1611 chain_histogram
[i
]),
1613 chain_histogram
[i
]);
1617 static const char *derive_filename(const char *pack_name
, const char *suffix
,
1621 if (!strip_suffix(pack_name
, ".pack", &len
))
1622 die(_("packfile name '%s' does not end with '.pack'"),
1624 strbuf_add(buf
, pack_name
, len
);
1625 strbuf_addstr(buf
, suffix
);
1629 int cmd_index_pack(int argc
, const char **argv
, const char *prefix
)
1631 int i
, fix_thin_pack
= 0, verify
= 0, stat_only
= 0;
1632 const char *curr_index
;
1633 const char *index_name
= NULL
, *pack_name
= NULL
;
1634 const char *keep_name
= NULL
, *keep_msg
= NULL
;
1635 struct strbuf index_name_buf
= STRBUF_INIT
,
1636 keep_name_buf
= STRBUF_INIT
;
1637 struct pack_idx_entry
**idx_objects
;
1638 struct pack_idx_option opts
;
1639 unsigned char pack_sha1
[20];
1640 unsigned foreign_nr
= 1; /* zero is a "good" value, assume bad */
1641 int report_end_of_input
= 0;
1643 if (argc
== 2 && !strcmp(argv
[1], "-h"))
1644 usage(index_pack_usage
);
1646 check_replace_refs
= 0;
1647 fsck_options
.walk
= mark_link
;
1649 reset_pack_idx_option(&opts
);
1650 git_config(git_index_pack_config
, &opts
);
1651 if (prefix
&& chdir(prefix
))
1652 die(_("Cannot come back to cwd"));
1654 for (i
= 1; i
< argc
; i
++) {
1655 const char *arg
= argv
[i
];
1658 if (!strcmp(arg
, "--stdin")) {
1660 } else if (!strcmp(arg
, "--fix-thin")) {
1662 } else if (!strcmp(arg
, "--strict")) {
1665 } else if (skip_prefix(arg
, "--strict=", &arg
)) {
1668 fsck_set_msg_types(&fsck_options
, arg
);
1669 } else if (!strcmp(arg
, "--check-self-contained-and-connected")) {
1671 check_self_contained_and_connected
= 1;
1672 } else if (!strcmp(arg
, "--verify")) {
1674 } else if (!strcmp(arg
, "--verify-stat")) {
1677 } else if (!strcmp(arg
, "--verify-stat-only")) {
1681 } else if (!strcmp(arg
, "--keep")) {
1683 } else if (starts_with(arg
, "--keep=")) {
1685 } else if (starts_with(arg
, "--threads=")) {
1687 nr_threads
= strtoul(arg
+10, &end
, 0);
1688 if (!arg
[10] || *end
|| nr_threads
< 0)
1689 usage(index_pack_usage
);
1691 if (nr_threads
!= 1)
1692 warning(_("no threads support, "
1693 "ignoring %s"), arg
);
1696 } else if (starts_with(arg
, "--pack_header=")) {
1697 struct pack_header
*hdr
;
1700 hdr
= (struct pack_header
*)input_buffer
;
1701 hdr
->hdr_signature
= htonl(PACK_SIGNATURE
);
1702 hdr
->hdr_version
= htonl(strtoul(arg
+ 14, &c
, 10));
1704 die(_("bad %s"), arg
);
1705 hdr
->hdr_entries
= htonl(strtoul(c
+ 1, &c
, 10));
1707 die(_("bad %s"), arg
);
1708 input_len
= sizeof(*hdr
);
1709 } else if (!strcmp(arg
, "-v")) {
1711 } else if (!strcmp(arg
, "--show-resolving-progress")) {
1712 show_resolving_progress
= 1;
1713 } else if (!strcmp(arg
, "--report-end-of-input")) {
1714 report_end_of_input
= 1;
1715 } else if (!strcmp(arg
, "-o")) {
1716 if (index_name
|| (i
+1) >= argc
)
1717 usage(index_pack_usage
);
1718 index_name
= argv
[++i
];
1719 } else if (starts_with(arg
, "--index-version=")) {
1721 opts
.version
= strtoul(arg
+ 16, &c
, 10);
1722 if (opts
.version
> 2)
1723 die(_("bad %s"), arg
);
1725 opts
.off32_limit
= strtoul(c
+1, &c
, 0);
1726 if (*c
|| opts
.off32_limit
& 0x80000000)
1727 die(_("bad %s"), arg
);
1728 } else if (skip_prefix(arg
, "--max-input-size=", &arg
)) {
1729 max_input_size
= strtoumax(arg
, NULL
, 10);
1731 usage(index_pack_usage
);
1736 usage(index_pack_usage
);
1740 if (!pack_name
&& !from_stdin
)
1741 usage(index_pack_usage
);
1742 if (fix_thin_pack
&& !from_stdin
)
1743 die(_("--fix-thin cannot be used without --stdin"));
1744 if (from_stdin
&& !startup_info
->have_repository
)
1745 die(_("--stdin requires a git repository"));
1746 if (!index_name
&& pack_name
)
1747 index_name
= derive_filename(pack_name
, ".idx", &index_name_buf
);
1748 if (keep_msg
&& !keep_name
&& pack_name
)
1749 keep_name
= derive_filename(pack_name
, ".keep", &keep_name_buf
);
1753 die(_("--verify with no packfile name given"));
1754 read_idx_option(&opts
, index_name
);
1755 opts
.flags
|= WRITE_IDX_VERIFY
| WRITE_IDX_STRICT
;
1758 opts
.flags
|= WRITE_IDX_STRICT
;
1762 nr_threads
= online_cpus();
1763 /* An experiment showed that more threads does not mean faster */
1769 curr_pack
= open_pack_file(pack_name
);
1770 parse_pack_header();
1771 objects
= xcalloc(st_add(nr_objects
, 1), sizeof(struct object_entry
));
1773 obj_stat
= xcalloc(st_add(nr_objects
, 1), sizeof(struct object_stat
));
1774 ofs_deltas
= xcalloc(nr_objects
, sizeof(struct ofs_delta_entry
));
1775 parse_pack_objects(pack_sha1
);
1776 if (report_end_of_input
)
1777 write_in_full(2, "\0", 1);
1779 conclude_pack(fix_thin_pack
, curr_pack
, pack_sha1
);
1783 foreign_nr
= check_objects();
1786 show_pack_info(stat_only
);
1788 ALLOC_ARRAY(idx_objects
, nr_objects
);
1789 for (i
= 0; i
< nr_objects
; i
++)
1790 idx_objects
[i
] = &objects
[i
].idx
;
1791 curr_index
= write_idx_file(index_name
, idx_objects
, nr_objects
, &opts
, pack_sha1
);
1795 final(pack_name
, curr_pack
,
1796 index_name
, curr_index
,
1797 keep_name
, keep_msg
,
1802 strbuf_release(&index_name_buf
);
1803 strbuf_release(&keep_name_buf
);
1804 if (pack_name
== NULL
)
1805 free((void *) curr_pack
);
1806 if (index_name
== NULL
)
1807 free((void *) curr_index
);
1810 * Let the caller know this pack is not self contained
1812 if (check_self_contained_and_connected
&& foreign_nr
)