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Commit | Line | Data |
---|---|---|
9cf6d335 SV |
1 | #include "cache.h" |
2 | #include "delta.h" | |
3 | #include "pack.h" | |
4 | #include "csum-file.h" | |
8e440259 PE |
5 | #include "blob.h" |
6 | #include "commit.h" | |
7 | #include "tag.h" | |
8 | #include "tree.h" | |
96a02f8f | 9 | #include "progress.h" |
0153be05 | 10 | #include "fsck.h" |
9cf6d335 SV |
11 | |
12 | static const char index_pack_usage[] = | |
1b1dd23f | 13 | "git index-pack [-v] [-o <index-file>] [{ ---keep | --keep=<msg> }] [--strict] { <pack-file> | --stdin [--fix-thin] [<pack-file>] }"; |
9cf6d335 SV |
14 | |
15 | struct object_entry | |
16 | { | |
aa7e44bf | 17 | struct pack_idx_entry idx; |
2d477051 NP |
18 | unsigned long size; |
19 | unsigned int hdr_size; | |
9cf6d335 SV |
20 | enum object_type type; |
21 | enum object_type real_type; | |
9cf6d335 SV |
22 | }; |
23 | ||
53dda6ff NP |
24 | union delta_base { |
25 | unsigned char sha1[20]; | |
d7dd0223 | 26 | off_t offset; |
53dda6ff NP |
27 | }; |
28 | ||
f41aebd4 | 29 | struct base_data { |
4a438cab SP |
30 | struct base_data *base; |
31 | struct base_data *child; | |
03993e13 | 32 | struct object_entry *obj; |
f41aebd4 SP |
33 | void *data; |
34 | unsigned long size; | |
35 | }; | |
36 | ||
3c552873 NP |
37 | /* |
38 | * Even if sizeof(union delta_base) == 24 on 64-bit archs, we really want | |
39 | * to memcmp() only the first 20 bytes. | |
40 | */ | |
41 | #define UNION_BASE_SZ 20 | |
42 | ||
0153be05 MK |
43 | #define FLAG_LINK (1u<<20) |
44 | #define FLAG_CHECKED (1u<<21) | |
45 | ||
9cf6d335 SV |
46 | struct delta_entry |
47 | { | |
53dda6ff | 48 | union delta_base base; |
636171cb | 49 | int obj_no; |
9cf6d335 SV |
50 | }; |
51 | ||
9cf6d335 SV |
52 | static struct object_entry *objects; |
53 | static struct delta_entry *deltas; | |
4a438cab | 54 | static struct base_data *base_cache; |
92392b4a | 55 | static size_t base_cache_used; |
9cf6d335 SV |
56 | static int nr_objects; |
57 | static int nr_deltas; | |
636171cb | 58 | static int nr_resolved_deltas; |
9cf6d335 | 59 | |
e42797f5 | 60 | static int from_stdin; |
0153be05 | 61 | static int strict; |
3c9af366 NP |
62 | static int verbose; |
63 | ||
dc6a0757 | 64 | static struct progress *progress; |
e42797f5 | 65 | |
2d477051 NP |
66 | /* We always read in 4kB chunks. */ |
67 | static unsigned char input_buffer[4096]; | |
d7dd0223 NP |
68 | static unsigned int input_offset, input_len; |
69 | static off_t consumed_bytes; | |
2d477051 | 70 | static SHA_CTX input_ctx; |
ee5743ce | 71 | static uint32_t input_crc32; |
6d2fa7f1 | 72 | static int input_fd, output_fd, pack_fd; |
2d477051 | 73 | |
0153be05 MK |
74 | static int mark_link(struct object *obj, int type, void *data) |
75 | { | |
76 | if (!obj) | |
77 | return -1; | |
78 | ||
79 | if (type != OBJ_ANY && obj->type != type) | |
80 | die("object type mismatch at %s", sha1_to_hex(obj->sha1)); | |
81 | ||
82 | obj->flags |= FLAG_LINK; | |
83 | return 0; | |
84 | } | |
85 | ||
86 | /* The content of each linked object must have been checked | |
87 | or it must be already present in the object database */ | |
88 | static void check_object(struct object *obj) | |
89 | { | |
90 | if (!obj) | |
91 | return; | |
92 | ||
93 | if (!(obj->flags & FLAG_LINK)) | |
94 | return; | |
95 | ||
96 | if (!(obj->flags & FLAG_CHECKED)) { | |
97 | unsigned long size; | |
98 | int type = sha1_object_info(obj->sha1, &size); | |
99 | if (type != obj->type || type <= 0) | |
100 | die("object of unexpected type"); | |
101 | obj->flags |= FLAG_CHECKED; | |
102 | return; | |
103 | } | |
104 | } | |
105 | ||
106 | static void check_objects(void) | |
107 | { | |
108 | unsigned i, max; | |
109 | ||
110 | max = get_max_object_index(); | |
111 | for (i = 0; i < max; i++) | |
112 | check_object(get_indexed_object(i)); | |
113 | } | |
114 | ||
115 | ||
636171cb | 116 | /* Discard current buffer used content. */ |
a6e8a767 | 117 | static void flush(void) |
636171cb NP |
118 | { |
119 | if (input_offset) { | |
120 | if (output_fd >= 0) | |
121 | write_or_die(output_fd, input_buffer, input_offset); | |
122 | SHA1_Update(&input_ctx, input_buffer, input_offset); | |
554a2636 | 123 | memmove(input_buffer, input_buffer + input_offset, input_len); |
636171cb NP |
124 | input_offset = 0; |
125 | } | |
126 | } | |
127 | ||
2d477051 NP |
128 | /* |
129 | * Make sure at least "min" bytes are available in the buffer, and | |
130 | * return the pointer to the buffer. | |
131 | */ | |
b89c4e93 | 132 | static void *fill(int min) |
9cf6d335 | 133 | { |
2d477051 NP |
134 | if (min <= input_len) |
135 | return input_buffer + input_offset; | |
136 | if (min > sizeof(input_buffer)) | |
137 | die("cannot fill %d bytes", min); | |
636171cb | 138 | flush(); |
2d477051 | 139 | do { |
8a912bcb | 140 | ssize_t ret = xread(input_fd, input_buffer + input_len, |
2d477051 NP |
141 | sizeof(input_buffer) - input_len); |
142 | if (ret <= 0) { | |
143 | if (!ret) | |
144 | die("early EOF"); | |
145 | die("read error on input: %s", strerror(errno)); | |
146 | } | |
147 | input_len += ret; | |
218558af NP |
148 | if (from_stdin) |
149 | display_throughput(progress, consumed_bytes + input_len); | |
2d477051 NP |
150 | } while (input_len < min); |
151 | return input_buffer; | |
152 | } | |
153 | ||
154 | static void use(int bytes) | |
155 | { | |
156 | if (bytes > input_len) | |
157 | die("used more bytes than were available"); | |
ee5743ce | 158 | input_crc32 = crc32(input_crc32, input_buffer + input_offset, bytes); |
2d477051 NP |
159 | input_len -= bytes; |
160 | input_offset += bytes; | |
d7dd0223 NP |
161 | |
162 | /* make sure off_t is sufficiently large not to wrap */ | |
163 | if (consumed_bytes > consumed_bytes + bytes) | |
164 | die("pack too large for current definition of off_t"); | |
2d477051 NP |
165 | consumed_bytes += bytes; |
166 | } | |
9cf6d335 | 167 | |
4049b9cf | 168 | static char *open_pack_file(char *pack_name) |
2d477051 | 169 | { |
e42797f5 NP |
170 | if (from_stdin) { |
171 | input_fd = 0; | |
172 | if (!pack_name) { | |
173 | static char tmpfile[PATH_MAX]; | |
174 | snprintf(tmpfile, sizeof(tmpfile), | |
8b4eb6b6 | 175 | "%s/pack/tmp_pack_XXXXXX", get_object_directory()); |
7647b17f | 176 | output_fd = xmkstemp(tmpfile); |
e42797f5 NP |
177 | pack_name = xstrdup(tmpfile); |
178 | } else | |
179 | output_fd = open(pack_name, O_CREAT|O_EXCL|O_RDWR, 0600); | |
180 | if (output_fd < 0) | |
181 | die("unable to create %s: %s\n", pack_name, strerror(errno)); | |
6d2fa7f1 | 182 | pack_fd = output_fd; |
e42797f5 NP |
183 | } else { |
184 | input_fd = open(pack_name, O_RDONLY); | |
185 | if (input_fd < 0) | |
186 | die("cannot open packfile '%s': %s", | |
187 | pack_name, strerror(errno)); | |
188 | output_fd = -1; | |
6d2fa7f1 | 189 | pack_fd = input_fd; |
e42797f5 | 190 | } |
2d477051 | 191 | SHA1_Init(&input_ctx); |
e42797f5 | 192 | return pack_name; |
9cf6d335 SV |
193 | } |
194 | ||
195 | static void parse_pack_header(void) | |
196 | { | |
2d477051 | 197 | struct pack_header *hdr = fill(sizeof(struct pack_header)); |
9cf6d335 SV |
198 | |
199 | /* Header consistency check */ | |
9cf6d335 | 200 | if (hdr->hdr_signature != htonl(PACK_SIGNATURE)) |
e42797f5 | 201 | die("pack signature mismatch"); |
d60fc1c8 | 202 | if (!pack_version_ok(hdr->hdr_version)) |
6e1c2344 RJ |
203 | die("pack version %"PRIu32" unsupported", |
204 | ntohl(hdr->hdr_version)); | |
9cf6d335 SV |
205 | |
206 | nr_objects = ntohl(hdr->hdr_entries); | |
2d477051 | 207 | use(sizeof(struct pack_header)); |
9cf6d335 SV |
208 | } |
209 | ||
210 | static void bad_object(unsigned long offset, const char *format, | |
211 | ...) NORETURN __attribute__((format (printf, 2, 3))); | |
212 | ||
213 | static void bad_object(unsigned long offset, const char *format, ...) | |
214 | { | |
215 | va_list params; | |
216 | char buf[1024]; | |
217 | ||
218 | va_start(params, format); | |
219 | vsnprintf(buf, sizeof(buf), format, params); | |
220 | va_end(params); | |
e42797f5 | 221 | die("pack has bad object at offset %lu: %s", offset, buf); |
9cf6d335 SV |
222 | } |
223 | ||
92392b4a SP |
224 | static void prune_base_data(struct base_data *retain) |
225 | { | |
226 | struct base_data *b = base_cache; | |
227 | for (b = base_cache; | |
228 | base_cache_used > delta_base_cache_limit && b; | |
229 | b = b->child) { | |
230 | if (b->data && b != retain) { | |
231 | free(b->data); | |
232 | b->data = NULL; | |
233 | base_cache_used -= b->size; | |
234 | } | |
235 | } | |
236 | } | |
237 | ||
4a438cab SP |
238 | static void link_base_data(struct base_data *base, struct base_data *c) |
239 | { | |
240 | if (base) | |
241 | base->child = c; | |
242 | else | |
243 | base_cache = c; | |
244 | ||
245 | c->base = base; | |
246 | c->child = NULL; | |
92392b4a SP |
247 | base_cache_used += c->size; |
248 | prune_base_data(c); | |
4a438cab SP |
249 | } |
250 | ||
251 | static void unlink_base_data(struct base_data *c) | |
252 | { | |
253 | struct base_data *base = c->base; | |
254 | if (base) | |
255 | base->child = NULL; | |
256 | else | |
257 | base_cache = NULL; | |
92392b4a SP |
258 | if (c->data) { |
259 | free(c->data); | |
260 | base_cache_used -= c->size; | |
261 | } | |
4a438cab SP |
262 | } |
263 | ||
2d477051 | 264 | static void *unpack_entry_data(unsigned long offset, unsigned long size) |
9cf6d335 | 265 | { |
9cf6d335 SV |
266 | z_stream stream; |
267 | void *buf = xmalloc(size); | |
268 | ||
269 | memset(&stream, 0, sizeof(stream)); | |
270 | stream.next_out = buf; | |
271 | stream.avail_out = size; | |
2d477051 NP |
272 | stream.next_in = fill(1); |
273 | stream.avail_in = input_len; | |
9cf6d335 SV |
274 | inflateInit(&stream); |
275 | ||
276 | for (;;) { | |
277 | int ret = inflate(&stream, 0); | |
2d477051 NP |
278 | use(input_len - stream.avail_in); |
279 | if (stream.total_out == size && ret == Z_STREAM_END) | |
9cf6d335 SV |
280 | break; |
281 | if (ret != Z_OK) | |
282 | bad_object(offset, "inflate returned %d", ret); | |
2d477051 NP |
283 | stream.next_in = fill(1); |
284 | stream.avail_in = input_len; | |
9cf6d335 SV |
285 | } |
286 | inflateEnd(&stream); | |
9cf6d335 SV |
287 | return buf; |
288 | } | |
289 | ||
2d477051 | 290 | static void *unpack_raw_entry(struct object_entry *obj, union delta_base *delta_base) |
9cf6d335 | 291 | { |
2d477051 | 292 | unsigned char *p, c; |
d7dd0223 NP |
293 | unsigned long size; |
294 | off_t base_offset; | |
9cf6d335 | 295 | unsigned shift; |
ee5743ce | 296 | void *data; |
9cf6d335 | 297 | |
aa7e44bf | 298 | obj->idx.offset = consumed_bytes; |
ee5743ce | 299 | input_crc32 = crc32(0, Z_NULL, 0); |
2d477051 NP |
300 | |
301 | p = fill(1); | |
302 | c = *p; | |
303 | use(1); | |
304 | obj->type = (c >> 4) & 7; | |
9cf6d335 SV |
305 | size = (c & 15); |
306 | shift = 4; | |
307 | while (c & 0x80) { | |
2d477051 NP |
308 | p = fill(1); |
309 | c = *p; | |
310 | use(1); | |
9cf6d335 SV |
311 | size += (c & 0x7fUL) << shift; |
312 | shift += 7; | |
313 | } | |
2d477051 | 314 | obj->size = size; |
9cf6d335 | 315 | |
2d477051 | 316 | switch (obj->type) { |
eb32d236 | 317 | case OBJ_REF_DELTA: |
2d477051 NP |
318 | hashcpy(delta_base->sha1, fill(20)); |
319 | use(20); | |
53dda6ff NP |
320 | break; |
321 | case OBJ_OFS_DELTA: | |
322 | memset(delta_base, 0, sizeof(*delta_base)); | |
2d477051 NP |
323 | p = fill(1); |
324 | c = *p; | |
325 | use(1); | |
53dda6ff NP |
326 | base_offset = c & 127; |
327 | while (c & 128) { | |
328 | base_offset += 1; | |
8723f216 | 329 | if (!base_offset || MSB(base_offset, 7)) |
aa7e44bf | 330 | bad_object(obj->idx.offset, "offset value overflow for delta base object"); |
2d477051 NP |
331 | p = fill(1); |
332 | c = *p; | |
333 | use(1); | |
53dda6ff NP |
334 | base_offset = (base_offset << 7) + (c & 127); |
335 | } | |
aa7e44bf GB |
336 | delta_base->offset = obj->idx.offset - base_offset; |
337 | if (delta_base->offset >= obj->idx.offset) | |
338 | bad_object(obj->idx.offset, "delta base offset is out of bound"); | |
53dda6ff | 339 | break; |
9cf6d335 SV |
340 | case OBJ_COMMIT: |
341 | case OBJ_TREE: | |
342 | case OBJ_BLOB: | |
343 | case OBJ_TAG: | |
9cf6d335 SV |
344 | break; |
345 | default: | |
aa7e44bf | 346 | bad_object(obj->idx.offset, "unknown object type %d", obj->type); |
9cf6d335 | 347 | } |
aa7e44bf | 348 | obj->hdr_size = consumed_bytes - obj->idx.offset; |
2d477051 | 349 | |
aa7e44bf GB |
350 | data = unpack_entry_data(obj->idx.offset, obj->size); |
351 | obj->idx.crc32 = input_crc32; | |
ee5743ce | 352 | return data; |
2d477051 NP |
353 | } |
354 | ||
b89c4e93 | 355 | static void *get_data_from_pack(struct object_entry *obj) |
2d477051 | 356 | { |
a91ef6e7 | 357 | off_t from = obj[0].idx.offset + obj[0].hdr_size; |
aa7e44bf | 358 | unsigned long len = obj[1].idx.offset - from; |
a91d49cd | 359 | unsigned long rdy = 0; |
6d2fa7f1 | 360 | unsigned char *src, *data; |
2d477051 NP |
361 | z_stream stream; |
362 | int st; | |
9cf6d335 | 363 | |
6d2fa7f1 | 364 | src = xmalloc(len); |
a91d49cd SP |
365 | data = src; |
366 | do { | |
367 | ssize_t n = pread(pack_fd, data + rdy, len - rdy, from + rdy); | |
fb742436 | 368 | if (n < 0) |
a91d49cd | 369 | die("cannot pread pack file: %s", strerror(errno)); |
fb742436 ST |
370 | if (!n) |
371 | die("premature end of pack file, %lu bytes missing", | |
372 | len - rdy); | |
a91d49cd SP |
373 | rdy += n; |
374 | } while (rdy < len); | |
2d477051 NP |
375 | data = xmalloc(obj->size); |
376 | memset(&stream, 0, sizeof(stream)); | |
377 | stream.next_out = data; | |
378 | stream.avail_out = obj->size; | |
6d2fa7f1 | 379 | stream.next_in = src; |
2d477051 NP |
380 | stream.avail_in = len; |
381 | inflateInit(&stream); | |
382 | while ((st = inflate(&stream, Z_FINISH)) == Z_OK); | |
383 | inflateEnd(&stream); | |
384 | if (st != Z_STREAM_END || stream.total_out != obj->size) | |
385 | die("serious inflate inconsistency"); | |
6d2fa7f1 | 386 | free(src); |
9cf6d335 SV |
387 | return data; |
388 | } | |
389 | ||
53dda6ff | 390 | static int find_delta(const union delta_base *base) |
9cf6d335 SV |
391 | { |
392 | int first = 0, last = nr_deltas; | |
393 | ||
394 | while (first < last) { | |
395 | int next = (first + last) / 2; | |
396 | struct delta_entry *delta = &deltas[next]; | |
397 | int cmp; | |
398 | ||
3c552873 | 399 | cmp = memcmp(base, &delta->base, UNION_BASE_SZ); |
9cf6d335 SV |
400 | if (!cmp) |
401 | return next; | |
402 | if (cmp < 0) { | |
403 | last = next; | |
404 | continue; | |
405 | } | |
406 | first = next+1; | |
407 | } | |
408 | return -first-1; | |
409 | } | |
410 | ||
b89c4e93 NP |
411 | static int find_delta_children(const union delta_base *base, |
412 | int *first_index, int *last_index) | |
9cf6d335 | 413 | { |
53dda6ff | 414 | int first = find_delta(base); |
9cf6d335 SV |
415 | int last = first; |
416 | int end = nr_deltas - 1; | |
417 | ||
418 | if (first < 0) | |
419 | return -1; | |
3c552873 | 420 | while (first > 0 && !memcmp(&deltas[first - 1].base, base, UNION_BASE_SZ)) |
9cf6d335 | 421 | --first; |
3c552873 | 422 | while (last < end && !memcmp(&deltas[last + 1].base, base, UNION_BASE_SZ)) |
9cf6d335 SV |
423 | ++last; |
424 | *first_index = first; | |
425 | *last_index = last; | |
426 | return 0; | |
427 | } | |
428 | ||
429 | static void sha1_object(const void *data, unsigned long size, | |
9096c660 | 430 | enum object_type type, unsigned char *sha1) |
9cf6d335 | 431 | { |
ce9fbf16 | 432 | hash_sha1_file(data, size, typename(type), sha1); |
9096c660 | 433 | if (has_sha1_file(sha1)) { |
8685da42 NP |
434 | void *has_data; |
435 | enum object_type has_type; | |
436 | unsigned long has_size; | |
437 | has_data = read_sha1_file(sha1, &has_type, &has_size); | |
438 | if (!has_data) | |
439 | die("cannot read existing object %s", sha1_to_hex(sha1)); | |
440 | if (size != has_size || type != has_type || | |
441 | memcmp(data, has_data, size) != 0) | |
442 | die("SHA1 COLLISION FOUND WITH %s !", sha1_to_hex(sha1)); | |
bbf4b41b | 443 | free(has_data); |
8685da42 | 444 | } |
0153be05 MK |
445 | if (strict) { |
446 | if (type == OBJ_BLOB) { | |
447 | struct blob *blob = lookup_blob(sha1); | |
448 | if (blob) | |
449 | blob->object.flags |= FLAG_CHECKED; | |
450 | else | |
451 | die("invalid blob object %s", sha1_to_hex(sha1)); | |
452 | } else { | |
453 | struct object *obj; | |
454 | int eaten; | |
455 | void *buf = (void *) data; | |
456 | ||
457 | /* | |
458 | * we do not need to free the memory here, as the | |
459 | * buf is deleted by the caller. | |
460 | */ | |
461 | obj = parse_object_buffer(sha1, type, size, buf, &eaten); | |
462 | if (!obj) | |
463 | die("invalid %s", typename(type)); | |
464 | if (fsck_object(obj, 1, fsck_error_function)) | |
465 | die("Error in object"); | |
466 | if (fsck_walk(obj, mark_link, 0)) | |
467 | die("Not all child objects of %s are reachable", sha1_to_hex(obj->sha1)); | |
468 | ||
469 | if (obj->type == OBJ_TREE) { | |
470 | struct tree *item = (struct tree *) obj; | |
471 | item->buffer = NULL; | |
472 | } | |
473 | if (obj->type == OBJ_COMMIT) { | |
474 | struct commit *commit = (struct commit *) obj; | |
475 | commit->buffer = NULL; | |
476 | } | |
477 | obj->flags |= FLAG_CHECKED; | |
478 | } | |
479 | } | |
9cf6d335 SV |
480 | } |
481 | ||
92392b4a SP |
482 | static void *get_base_data(struct base_data *c) |
483 | { | |
484 | if (!c->data) { | |
485 | struct object_entry *obj = c->obj; | |
486 | ||
487 | if (obj->type == OBJ_REF_DELTA || obj->type == OBJ_OFS_DELTA) { | |
488 | void *base = get_base_data(c->base); | |
489 | void *raw = get_data_from_pack(obj); | |
490 | c->data = patch_delta( | |
491 | base, c->base->size, | |
492 | raw, obj->size, | |
493 | &c->size); | |
494 | free(raw); | |
495 | if (!c->data) | |
496 | bad_object(obj->idx.offset, "failed to apply delta"); | |
497 | } else | |
498 | c->data = get_data_from_pack(obj); | |
499 | ||
500 | base_cache_used += c->size; | |
501 | prune_base_data(c); | |
502 | } | |
503 | return c->data; | |
504 | } | |
505 | ||
f41aebd4 SP |
506 | static void resolve_delta(struct object_entry *delta_obj, |
507 | struct base_data *base_obj, enum object_type type) | |
9cf6d335 | 508 | { |
9cf6d335 SV |
509 | void *delta_data; |
510 | unsigned long delta_size; | |
53dda6ff | 511 | union delta_base delta_base; |
9cf6d335 | 512 | int j, first, last; |
f41aebd4 | 513 | struct base_data result; |
9cf6d335 | 514 | |
636171cb NP |
515 | delta_obj->real_type = type; |
516 | delta_data = get_data_from_pack(delta_obj); | |
517 | delta_size = delta_obj->size; | |
92392b4a | 518 | result.data = patch_delta(get_base_data(base_obj), base_obj->size, |
f41aebd4 SP |
519 | delta_data, delta_size, |
520 | &result.size); | |
9cf6d335 | 521 | free(delta_data); |
f41aebd4 | 522 | if (!result.data) |
aa7e44bf | 523 | bad_object(delta_obj->idx.offset, "failed to apply delta"); |
f41aebd4 | 524 | sha1_object(result.data, result.size, type, delta_obj->idx.sha1); |
636171cb | 525 | nr_resolved_deltas++; |
53dda6ff | 526 | |
03993e13 | 527 | result.obj = delta_obj; |
4a438cab SP |
528 | link_base_data(base_obj, &result); |
529 | ||
aa7e44bf | 530 | hashcpy(delta_base.sha1, delta_obj->idx.sha1); |
b89c4e93 | 531 | if (!find_delta_children(&delta_base, &first, &last)) { |
636171cb NP |
532 | for (j = first; j <= last; j++) { |
533 | struct object_entry *child = objects + deltas[j].obj_no; | |
534 | if (child->real_type == OBJ_REF_DELTA) | |
f41aebd4 | 535 | resolve_delta(child, &result, type); |
636171cb | 536 | } |
53dda6ff NP |
537 | } |
538 | ||
539 | memset(&delta_base, 0, sizeof(delta_base)); | |
aa7e44bf | 540 | delta_base.offset = delta_obj->idx.offset; |
b89c4e93 | 541 | if (!find_delta_children(&delta_base, &first, &last)) { |
636171cb NP |
542 | for (j = first; j <= last; j++) { |
543 | struct object_entry *child = objects + deltas[j].obj_no; | |
544 | if (child->real_type == OBJ_OFS_DELTA) | |
f41aebd4 | 545 | resolve_delta(child, &result, type); |
636171cb | 546 | } |
9cf6d335 | 547 | } |
53dda6ff | 548 | |
4a438cab | 549 | unlink_base_data(&result); |
9cf6d335 SV |
550 | } |
551 | ||
552 | static int compare_delta_entry(const void *a, const void *b) | |
553 | { | |
554 | const struct delta_entry *delta_a = a; | |
555 | const struct delta_entry *delta_b = b; | |
3c552873 | 556 | return memcmp(&delta_a->base, &delta_b->base, UNION_BASE_SZ); |
9cf6d335 SV |
557 | } |
558 | ||
2d477051 NP |
559 | /* Parse all objects and return the pack content SHA1 hash */ |
560 | static void parse_pack_objects(unsigned char *sha1) | |
9cf6d335 | 561 | { |
96a02f8f | 562 | int i; |
53dda6ff | 563 | struct delta_entry *delta = deltas; |
2d477051 | 564 | struct stat st; |
9cf6d335 SV |
565 | |
566 | /* | |
567 | * First pass: | |
568 | * - find locations of all objects; | |
569 | * - calculate SHA1 of all non-delta objects; | |
b89c4e93 | 570 | * - remember base (SHA1 or offset) for all deltas. |
9cf6d335 | 571 | */ |
13aaf148 | 572 | if (verbose) |
29e63ed3 NP |
573 | progress = start_progress( |
574 | from_stdin ? "Receiving objects" : "Indexing objects", | |
575 | nr_objects); | |
9cf6d335 SV |
576 | for (i = 0; i < nr_objects; i++) { |
577 | struct object_entry *obj = &objects[i]; | |
f41aebd4 | 578 | void *data = unpack_raw_entry(obj, &delta->base); |
9cf6d335 | 579 | obj->real_type = obj->type; |
53dda6ff NP |
580 | if (obj->type == OBJ_REF_DELTA || obj->type == OBJ_OFS_DELTA) { |
581 | nr_deltas++; | |
636171cb | 582 | delta->obj_no = i; |
53dda6ff | 583 | delta++; |
9cf6d335 | 584 | } else |
aa7e44bf | 585 | sha1_object(data, obj->size, obj->type, obj->idx.sha1); |
9cf6d335 | 586 | free(data); |
4d4fcc54 | 587 | display_progress(progress, i+1); |
9cf6d335 | 588 | } |
aa7e44bf | 589 | objects[i].idx.offset = consumed_bytes; |
4d4fcc54 | 590 | stop_progress(&progress); |
2d477051 NP |
591 | |
592 | /* Check pack integrity */ | |
636171cb | 593 | flush(); |
2d477051 NP |
594 | SHA1_Final(sha1, &input_ctx); |
595 | if (hashcmp(fill(20), sha1)) | |
e42797f5 | 596 | die("pack is corrupted (SHA1 mismatch)"); |
9bee2478 | 597 | use(20); |
2d477051 NP |
598 | |
599 | /* If input_fd is a file, we should have reached its end now. */ | |
600 | if (fstat(input_fd, &st)) | |
e42797f5 | 601 | die("cannot fstat packfile: %s", strerror(errno)); |
fa257b05 JS |
602 | if (S_ISREG(st.st_mode) && |
603 | lseek(input_fd, 0, SEEK_CUR) - input_len != st.st_size) | |
e42797f5 | 604 | die("pack has junk at the end"); |
9cf6d335 | 605 | |
3c9af366 NP |
606 | if (!nr_deltas) |
607 | return; | |
608 | ||
53dda6ff | 609 | /* Sort deltas by base SHA1/offset for fast searching */ |
9cf6d335 SV |
610 | qsort(deltas, nr_deltas, sizeof(struct delta_entry), |
611 | compare_delta_entry); | |
612 | ||
613 | /* | |
614 | * Second pass: | |
615 | * - for all non-delta objects, look if it is used as a base for | |
616 | * deltas; | |
617 | * - if used as a base, uncompress the object and apply all deltas, | |
618 | * recursively checking if the resulting object is used as a base | |
619 | * for some more deltas. | |
620 | */ | |
13aaf148 | 621 | if (verbose) |
dc6a0757 | 622 | progress = start_progress("Resolving deltas", nr_deltas); |
9cf6d335 SV |
623 | for (i = 0; i < nr_objects; i++) { |
624 | struct object_entry *obj = &objects[i]; | |
53dda6ff NP |
625 | union delta_base base; |
626 | int j, ref, ref_first, ref_last, ofs, ofs_first, ofs_last; | |
f41aebd4 | 627 | struct base_data base_obj; |
9cf6d335 | 628 | |
53dda6ff | 629 | if (obj->type == OBJ_REF_DELTA || obj->type == OBJ_OFS_DELTA) |
9cf6d335 | 630 | continue; |
aa7e44bf | 631 | hashcpy(base.sha1, obj->idx.sha1); |
b89c4e93 | 632 | ref = !find_delta_children(&base, &ref_first, &ref_last); |
53dda6ff | 633 | memset(&base, 0, sizeof(base)); |
aa7e44bf | 634 | base.offset = obj->idx.offset; |
b89c4e93 | 635 | ofs = !find_delta_children(&base, &ofs_first, &ofs_last); |
53dda6ff | 636 | if (!ref && !ofs) |
9cf6d335 | 637 | continue; |
f41aebd4 SP |
638 | base_obj.data = get_data_from_pack(obj); |
639 | base_obj.size = obj->size; | |
03993e13 | 640 | base_obj.obj = obj; |
4a438cab | 641 | link_base_data(NULL, &base_obj); |
f41aebd4 | 642 | |
53dda6ff | 643 | if (ref) |
636171cb NP |
644 | for (j = ref_first; j <= ref_last; j++) { |
645 | struct object_entry *child = objects + deltas[j].obj_no; | |
646 | if (child->real_type == OBJ_REF_DELTA) | |
f41aebd4 | 647 | resolve_delta(child, &base_obj, obj->type); |
636171cb | 648 | } |
53dda6ff | 649 | if (ofs) |
636171cb NP |
650 | for (j = ofs_first; j <= ofs_last; j++) { |
651 | struct object_entry *child = objects + deltas[j].obj_no; | |
652 | if (child->real_type == OBJ_OFS_DELTA) | |
f41aebd4 | 653 | resolve_delta(child, &base_obj, obj->type); |
636171cb | 654 | } |
4a438cab | 655 | unlink_base_data(&base_obj); |
4d4fcc54 | 656 | display_progress(progress, nr_resolved_deltas); |
9cf6d335 | 657 | } |
636171cb NP |
658 | } |
659 | ||
8522148f | 660 | static int write_compressed(struct sha1file *f, void *in, unsigned int size) |
636171cb NP |
661 | { |
662 | z_stream stream; | |
663 | unsigned long maxsize; | |
664 | void *out; | |
665 | ||
666 | memset(&stream, 0, sizeof(stream)); | |
667 | deflateInit(&stream, zlib_compression_level); | |
668 | maxsize = deflateBound(&stream, size); | |
669 | out = xmalloc(maxsize); | |
670 | ||
671 | /* Compress it */ | |
672 | stream.next_in = in; | |
673 | stream.avail_in = size; | |
674 | stream.next_out = out; | |
675 | stream.avail_out = maxsize; | |
676 | while (deflate(&stream, Z_FINISH) == Z_OK); | |
677 | deflateEnd(&stream); | |
678 | ||
679 | size = stream.total_out; | |
8522148f | 680 | sha1write(f, out, size); |
636171cb NP |
681 | free(out); |
682 | return size; | |
683 | } | |
684 | ||
8522148f | 685 | static struct object_entry *append_obj_to_pack(struct sha1file *f, |
03993e13 | 686 | const unsigned char *sha1, void *buf, |
636171cb NP |
687 | unsigned long size, enum object_type type) |
688 | { | |
689 | struct object_entry *obj = &objects[nr_objects++]; | |
690 | unsigned char header[10]; | |
691 | unsigned long s = size; | |
692 | int n = 0; | |
693 | unsigned char c = (type << 4) | (s & 15); | |
694 | s >>= 4; | |
695 | while (s) { | |
696 | header[n++] = c | 0x80; | |
697 | c = s & 0x7f; | |
698 | s >>= 7; | |
699 | } | |
700 | header[n++] = c; | |
8522148f NP |
701 | crc32_begin(f); |
702 | sha1write(f, header, n); | |
72de2883 BS |
703 | obj[0].size = size; |
704 | obj[0].hdr_size = n; | |
705 | obj[0].type = type; | |
706 | obj[0].real_type = type; | |
aa7e44bf | 707 | obj[1].idx.offset = obj[0].idx.offset + n; |
8522148f NP |
708 | obj[1].idx.offset += write_compressed(f, buf, size); |
709 | obj[0].idx.crc32 = crc32_end(f); | |
838cd346 | 710 | sha1flush(f); |
aa7e44bf | 711 | hashcpy(obj->idx.sha1, sha1); |
03993e13 | 712 | return obj; |
636171cb NP |
713 | } |
714 | ||
715 | static int delta_pos_compare(const void *_a, const void *_b) | |
716 | { | |
717 | struct delta_entry *a = *(struct delta_entry **)_a; | |
718 | struct delta_entry *b = *(struct delta_entry **)_b; | |
719 | return a->obj_no - b->obj_no; | |
720 | } | |
9cf6d335 | 721 | |
8522148f | 722 | static void fix_unresolved_deltas(struct sha1file *f, int nr_unresolved) |
636171cb NP |
723 | { |
724 | struct delta_entry **sorted_by_pos; | |
96a02f8f | 725 | int i, n = 0; |
636171cb NP |
726 | |
727 | /* | |
728 | * Since many unresolved deltas may well be themselves base objects | |
729 | * for more unresolved deltas, we really want to include the | |
730 | * smallest number of base objects that would cover as much delta | |
731 | * as possible by picking the | |
732 | * trunc deltas first, allowing for other deltas to resolve without | |
733 | * additional base objects. Since most base objects are to be found | |
734 | * before deltas depending on them, a good heuristic is to start | |
735 | * resolving deltas in the same order as their position in the pack. | |
736 | */ | |
737 | sorted_by_pos = xmalloc(nr_unresolved * sizeof(*sorted_by_pos)); | |
9cf6d335 | 738 | for (i = 0; i < nr_deltas; i++) { |
636171cb NP |
739 | if (objects[deltas[i].obj_no].real_type != OBJ_REF_DELTA) |
740 | continue; | |
741 | sorted_by_pos[n++] = &deltas[i]; | |
9cf6d335 | 742 | } |
636171cb NP |
743 | qsort(sorted_by_pos, n, sizeof(*sorted_by_pos), delta_pos_compare); |
744 | ||
745 | for (i = 0; i < n; i++) { | |
746 | struct delta_entry *d = sorted_by_pos[i]; | |
21666f1a | 747 | enum object_type type; |
636171cb | 748 | int j, first, last; |
f41aebd4 | 749 | struct base_data base_obj; |
636171cb NP |
750 | |
751 | if (objects[d->obj_no].real_type != OBJ_REF_DELTA) | |
752 | continue; | |
f41aebd4 SP |
753 | base_obj.data = read_sha1_file(d->base.sha1, &type, &base_obj.size); |
754 | if (!base_obj.data) | |
636171cb | 755 | continue; |
636171cb | 756 | |
03993e13 SP |
757 | if (check_sha1_signature(d->base.sha1, base_obj.data, |
758 | base_obj.size, typename(type))) | |
759 | die("local object %s is corrupt", sha1_to_hex(d->base.sha1)); | |
8522148f NP |
760 | base_obj.obj = append_obj_to_pack(f, d->base.sha1, |
761 | base_obj.data, base_obj.size, type); | |
4a438cab | 762 | link_base_data(NULL, &base_obj); |
636171cb | 763 | |
b89c4e93 | 764 | find_delta_children(&d->base, &first, &last); |
636171cb NP |
765 | for (j = first; j <= last; j++) { |
766 | struct object_entry *child = objects + deltas[j].obj_no; | |
767 | if (child->real_type == OBJ_REF_DELTA) | |
f41aebd4 | 768 | resolve_delta(child, &base_obj, type); |
636171cb NP |
769 | } |
770 | ||
4a438cab | 771 | unlink_base_data(&base_obj); |
4d4fcc54 | 772 | display_progress(progress, nr_resolved_deltas); |
636171cb NP |
773 | } |
774 | free(sorted_by_pos); | |
775 | } | |
776 | ||
e42797f5 NP |
777 | static void final(const char *final_pack_name, const char *curr_pack_name, |
778 | const char *final_index_name, const char *curr_index_name, | |
b8077709 | 779 | const char *keep_name, const char *keep_msg, |
e42797f5 NP |
780 | unsigned char *sha1) |
781 | { | |
3a55602e | 782 | const char *report = "pack"; |
e42797f5 NP |
783 | char name[PATH_MAX]; |
784 | int err; | |
785 | ||
786 | if (!from_stdin) { | |
787 | close(input_fd); | |
788 | } else { | |
4c81b03e | 789 | fsync_or_die(output_fd, curr_pack_name); |
e42797f5 NP |
790 | err = close(output_fd); |
791 | if (err) | |
792 | die("error while closing pack file: %s", strerror(errno)); | |
793 | chmod(curr_pack_name, 0444); | |
794 | } | |
795 | ||
b8077709 SP |
796 | if (keep_msg) { |
797 | int keep_fd, keep_msg_len = strlen(keep_msg); | |
798 | if (!keep_name) { | |
799 | snprintf(name, sizeof(name), "%s/pack/pack-%s.keep", | |
800 | get_object_directory(), sha1_to_hex(sha1)); | |
801 | keep_name = name; | |
802 | } | |
9ca4a201 NP |
803 | keep_fd = open(keep_name, O_RDWR|O_CREAT|O_EXCL, 0600); |
804 | if (keep_fd < 0) { | |
805 | if (errno != EEXIST) | |
806 | die("cannot write keep file"); | |
807 | } else { | |
808 | if (keep_msg_len > 0) { | |
809 | write_or_die(keep_fd, keep_msg, keep_msg_len); | |
810 | write_or_die(keep_fd, "\n", 1); | |
811 | } | |
91c8d590 JM |
812 | if (close(keep_fd) != 0) |
813 | die("cannot write keep file"); | |
576162a4 | 814 | report = "keep"; |
b8077709 | 815 | } |
b8077709 SP |
816 | } |
817 | ||
e42797f5 NP |
818 | if (final_pack_name != curr_pack_name) { |
819 | if (!final_pack_name) { | |
820 | snprintf(name, sizeof(name), "%s/pack/pack-%s.pack", | |
821 | get_object_directory(), sha1_to_hex(sha1)); | |
822 | final_pack_name = name; | |
823 | } | |
824 | if (move_temp_to_file(curr_pack_name, final_pack_name)) | |
825 | die("cannot store pack file"); | |
826 | } | |
827 | ||
828 | chmod(curr_index_name, 0444); | |
829 | if (final_index_name != curr_index_name) { | |
830 | if (!final_index_name) { | |
831 | snprintf(name, sizeof(name), "%s/pack/pack-%s.idx", | |
832 | get_object_directory(), sha1_to_hex(sha1)); | |
833 | final_index_name = name; | |
834 | } | |
835 | if (move_temp_to_file(curr_index_name, final_index_name)) | |
836 | die("cannot store index file"); | |
837 | } | |
576162a4 NP |
838 | |
839 | if (!from_stdin) { | |
840 | printf("%s\n", sha1_to_hex(sha1)); | |
841 | } else { | |
842 | char buf[48]; | |
843 | int len = snprintf(buf, sizeof(buf), "%s\t%s\n", | |
844 | report, sha1_to_hex(sha1)); | |
d1b2ddc8 | 845 | write_or_die(1, buf, len); |
576162a4 NP |
846 | |
847 | /* | |
848 | * Let's just mimic git-unpack-objects here and write | |
849 | * the last part of the input buffer to stdout. | |
850 | */ | |
851 | while (input_len) { | |
852 | err = xwrite(1, input_buffer + input_offset, input_len); | |
853 | if (err <= 0) | |
854 | break; | |
855 | input_len -= err; | |
856 | input_offset += err; | |
857 | } | |
858 | } | |
9cf6d335 SV |
859 | } |
860 | ||
ef90d6d4 | 861 | static int git_index_pack_config(const char *k, const char *v, void *cb) |
4d00bda2 NP |
862 | { |
863 | if (!strcmp(k, "pack.indexversion")) { | |
864 | pack_idx_default_version = git_config_int(k, v); | |
865 | if (pack_idx_default_version > 2) | |
6e1c2344 RJ |
866 | die("bad pack.indexversion=%"PRIu32, |
867 | pack_idx_default_version); | |
4d00bda2 NP |
868 | return 0; |
869 | } | |
ef90d6d4 | 870 | return git_default_config(k, v, cb); |
4d00bda2 NP |
871 | } |
872 | ||
9cf6d335 SV |
873 | int main(int argc, char **argv) |
874 | { | |
636171cb | 875 | int i, fix_thin_pack = 0; |
4049b9cf NP |
876 | char *curr_pack, *pack_name = NULL; |
877 | char *curr_index, *index_name = NULL; | |
b8077709 SP |
878 | const char *keep_name = NULL, *keep_msg = NULL; |
879 | char *index_name_buf = NULL, *keep_name_buf = NULL; | |
aa7e44bf | 880 | struct pack_idx_entry **idx_objects; |
8522148f | 881 | unsigned char pack_sha1[20]; |
9cf6d335 | 882 | |
a672ea6a NP |
883 | /* |
884 | * We wish to read the repository's config file if any, and | |
885 | * for that it is necessary to call setup_git_directory_gently(). | |
886 | * However if the cwd was inside .git/objects/pack/ then we need | |
887 | * to go back there or all the pack name arguments will be wrong. | |
888 | * And in that case we cannot rely on any prefix returned by | |
889 | * setup_git_directory_gently() either. | |
890 | */ | |
891 | { | |
892 | char cwd[PATH_MAX+1]; | |
893 | int nongit; | |
894 | ||
895 | if (!getcwd(cwd, sizeof(cwd)-1)) | |
896 | die("Unable to get current working directory"); | |
897 | setup_git_directory_gently(&nongit); | |
898 | git_config(git_index_pack_config, NULL); | |
899 | if (chdir(cwd)) | |
900 | die("Cannot come back to cwd"); | |
901 | } | |
4d00bda2 | 902 | |
9cf6d335 | 903 | for (i = 1; i < argc; i++) { |
4049b9cf | 904 | char *arg = argv[i]; |
9cf6d335 SV |
905 | |
906 | if (*arg == '-') { | |
e42797f5 NP |
907 | if (!strcmp(arg, "--stdin")) { |
908 | from_stdin = 1; | |
636171cb NP |
909 | } else if (!strcmp(arg, "--fix-thin")) { |
910 | fix_thin_pack = 1; | |
0153be05 MK |
911 | } else if (!strcmp(arg, "--strict")) { |
912 | strict = 1; | |
b8077709 SP |
913 | } else if (!strcmp(arg, "--keep")) { |
914 | keep_msg = ""; | |
cc44c765 | 915 | } else if (!prefixcmp(arg, "--keep=")) { |
b8077709 | 916 | keep_msg = arg + 7; |
cc44c765 | 917 | } else if (!prefixcmp(arg, "--pack_header=")) { |
bed006fb NP |
918 | struct pack_header *hdr; |
919 | char *c; | |
920 | ||
921 | hdr = (struct pack_header *)input_buffer; | |
922 | hdr->hdr_signature = htonl(PACK_SIGNATURE); | |
923 | hdr->hdr_version = htonl(strtoul(arg + 14, &c, 10)); | |
924 | if (*c != ',') | |
925 | die("bad %s", arg); | |
926 | hdr->hdr_entries = htonl(strtoul(c + 1, &c, 10)); | |
927 | if (*c) | |
928 | die("bad %s", arg); | |
929 | input_len = sizeof(*hdr); | |
3c9af366 NP |
930 | } else if (!strcmp(arg, "-v")) { |
931 | verbose = 1; | |
e42797f5 | 932 | } else if (!strcmp(arg, "-o")) { |
9cf6d335 SV |
933 | if (index_name || (i+1) >= argc) |
934 | usage(index_pack_usage); | |
935 | index_name = argv[++i]; | |
4ba7d711 NP |
936 | } else if (!prefixcmp(arg, "--index-version=")) { |
937 | char *c; | |
aa7e44bf GB |
938 | pack_idx_default_version = strtoul(arg + 16, &c, 10); |
939 | if (pack_idx_default_version > 2) | |
4ba7d711 NP |
940 | die("bad %s", arg); |
941 | if (*c == ',') | |
aa7e44bf GB |
942 | pack_idx_off32_limit = strtoul(c+1, &c, 0); |
943 | if (*c || pack_idx_off32_limit & 0x80000000) | |
4ba7d711 | 944 | die("bad %s", arg); |
9cf6d335 SV |
945 | } else |
946 | usage(index_pack_usage); | |
947 | continue; | |
948 | } | |
949 | ||
950 | if (pack_name) | |
951 | usage(index_pack_usage); | |
952 | pack_name = arg; | |
953 | } | |
954 | ||
e42797f5 | 955 | if (!pack_name && !from_stdin) |
9cf6d335 | 956 | usage(index_pack_usage); |
636171cb NP |
957 | if (fix_thin_pack && !from_stdin) |
958 | die("--fix-thin cannot be used without --stdin"); | |
e42797f5 | 959 | if (!index_name && pack_name) { |
9cf6d335 | 960 | int len = strlen(pack_name); |
5bb1cda5 | 961 | if (!has_extension(pack_name, ".pack")) |
9cf6d335 SV |
962 | die("packfile name '%s' does not end with '.pack'", |
963 | pack_name); | |
6689f087 | 964 | index_name_buf = xmalloc(len); |
9cf6d335 SV |
965 | memcpy(index_name_buf, pack_name, len - 5); |
966 | strcpy(index_name_buf + len - 5, ".idx"); | |
967 | index_name = index_name_buf; | |
968 | } | |
b8077709 SP |
969 | if (keep_msg && !keep_name && pack_name) { |
970 | int len = strlen(pack_name); | |
971 | if (!has_extension(pack_name, ".pack")) | |
972 | die("packfile name '%s' does not end with '.pack'", | |
973 | pack_name); | |
974 | keep_name_buf = xmalloc(len); | |
975 | memcpy(keep_name_buf, pack_name, len - 5); | |
976 | strcpy(keep_name_buf + len - 5, ".keep"); | |
977 | keep_name = keep_name_buf; | |
978 | } | |
9cf6d335 | 979 | |
e42797f5 | 980 | curr_pack = open_pack_file(pack_name); |
9cf6d335 | 981 | parse_pack_header(); |
636171cb NP |
982 | objects = xmalloc((nr_objects + 1) * sizeof(struct object_entry)); |
983 | deltas = xmalloc(nr_objects * sizeof(struct delta_entry)); | |
8522148f | 984 | parse_pack_objects(pack_sha1); |
96a02f8f | 985 | if (nr_deltas == nr_resolved_deltas) { |
4d4fcc54 | 986 | stop_progress(&progress); |
96a02f8f NP |
987 | /* Flush remaining pack final 20-byte SHA1. */ |
988 | flush(); | |
989 | } else { | |
636171cb | 990 | if (fix_thin_pack) { |
8522148f NP |
991 | struct sha1file *f; |
992 | unsigned char read_sha1[20], tail_sha1[20]; | |
a984a06a | 993 | char msg[48]; |
636171cb | 994 | int nr_unresolved = nr_deltas - nr_resolved_deltas; |
3c9af366 | 995 | int nr_objects_initial = nr_objects; |
636171cb NP |
996 | if (nr_unresolved <= 0) |
997 | die("confusion beyond insanity"); | |
998 | objects = xrealloc(objects, | |
999 | (nr_objects + nr_unresolved + 1) | |
1000 | * sizeof(*objects)); | |
8522148f NP |
1001 | f = sha1fd(output_fd, curr_pack); |
1002 | fix_unresolved_deltas(f, nr_unresolved); | |
a984a06a NP |
1003 | sprintf(msg, "completed with %d local objects", |
1004 | nr_objects - nr_objects_initial); | |
1005 | stop_progress_msg(&progress, msg); | |
8522148f NP |
1006 | sha1close(f, tail_sha1, 0); |
1007 | hashcpy(read_sha1, pack_sha1); | |
1008 | fixup_pack_header_footer(output_fd, pack_sha1, | |
abeb40e5 | 1009 | curr_pack, nr_objects, |
8522148f NP |
1010 | read_sha1, consumed_bytes-20); |
1011 | if (hashcmp(read_sha1, tail_sha1) != 0) | |
1012 | die("Unexpected tail checksum for %s " | |
1013 | "(disk corruption?)", curr_pack); | |
636171cb NP |
1014 | } |
1015 | if (nr_deltas != nr_resolved_deltas) | |
1016 | die("pack has %d unresolved deltas", | |
1017 | nr_deltas - nr_resolved_deltas); | |
636171cb | 1018 | } |
9cf6d335 | 1019 | free(deltas); |
0153be05 MK |
1020 | if (strict) |
1021 | check_objects(); | |
aa7e44bf GB |
1022 | |
1023 | idx_objects = xmalloc((nr_objects) * sizeof(struct pack_idx_entry *)); | |
1024 | for (i = 0; i < nr_objects; i++) | |
1025 | idx_objects[i] = &objects[i].idx; | |
8522148f | 1026 | curr_index = write_idx_file(index_name, idx_objects, nr_objects, pack_sha1); |
aa7e44bf GB |
1027 | free(idx_objects); |
1028 | ||
b8077709 SP |
1029 | final(pack_name, curr_pack, |
1030 | index_name, curr_index, | |
1031 | keep_name, keep_msg, | |
8522148f | 1032 | pack_sha1); |
9cf6d335 SV |
1033 | free(objects); |
1034 | free(index_name_buf); | |
b8077709 | 1035 | free(keep_name_buf); |
c85228ed NP |
1036 | if (pack_name == NULL) |
1037 | free(curr_pack); | |
1038 | if (index_name == NULL) | |
1039 | free(curr_index); | |
9cf6d335 SV |
1040 | |
1041 | return 0; | |
1042 | } |