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Commit | Line | Data |
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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" |
2fb3f6db | 11 | #include "exec_cmd.h" |
9cf6d335 SV |
12 | |
13 | static const char index_pack_usage[] = | |
1b1dd23f | 14 | "git index-pack [-v] [-o <index-file>] [{ ---keep | --keep=<msg> }] [--strict] { <pack-file> | --stdin [--fix-thin] [<pack-file>] }"; |
9cf6d335 SV |
15 | |
16 | struct object_entry | |
17 | { | |
aa7e44bf | 18 | struct pack_idx_entry idx; |
2d477051 NP |
19 | unsigned long size; |
20 | unsigned int hdr_size; | |
9cf6d335 SV |
21 | enum object_type type; |
22 | enum object_type real_type; | |
9cf6d335 SV |
23 | }; |
24 | ||
53dda6ff NP |
25 | union delta_base { |
26 | unsigned char sha1[20]; | |
d7dd0223 | 27 | off_t offset; |
53dda6ff NP |
28 | }; |
29 | ||
f41aebd4 | 30 | struct base_data { |
4a438cab SP |
31 | struct base_data *base; |
32 | struct base_data *child; | |
03993e13 | 33 | struct object_entry *obj; |
f41aebd4 SP |
34 | void *data; |
35 | unsigned long size; | |
36 | }; | |
37 | ||
3c552873 NP |
38 | /* |
39 | * Even if sizeof(union delta_base) == 24 on 64-bit archs, we really want | |
40 | * to memcmp() only the first 20 bytes. | |
41 | */ | |
42 | #define UNION_BASE_SZ 20 | |
43 | ||
0153be05 MK |
44 | #define FLAG_LINK (1u<<20) |
45 | #define FLAG_CHECKED (1u<<21) | |
46 | ||
9cf6d335 SV |
47 | struct delta_entry |
48 | { | |
53dda6ff | 49 | union delta_base base; |
636171cb | 50 | int obj_no; |
9cf6d335 SV |
51 | }; |
52 | ||
9cf6d335 SV |
53 | static struct object_entry *objects; |
54 | static struct delta_entry *deltas; | |
4a438cab | 55 | static struct base_data *base_cache; |
92392b4a | 56 | static size_t base_cache_used; |
9cf6d335 SV |
57 | static int nr_objects; |
58 | static int nr_deltas; | |
636171cb | 59 | static int nr_resolved_deltas; |
9cf6d335 | 60 | |
e42797f5 | 61 | static int from_stdin; |
0153be05 | 62 | static int strict; |
3c9af366 NP |
63 | static int verbose; |
64 | ||
dc6a0757 | 65 | static struct progress *progress; |
e42797f5 | 66 | |
2d477051 NP |
67 | /* We always read in 4kB chunks. */ |
68 | static unsigned char input_buffer[4096]; | |
d7dd0223 NP |
69 | static unsigned int input_offset, input_len; |
70 | static off_t consumed_bytes; | |
9126f009 | 71 | static git_SHA_CTX input_ctx; |
ee5743ce | 72 | static uint32_t input_crc32; |
6d2fa7f1 | 73 | static int input_fd, output_fd, pack_fd; |
2d477051 | 74 | |
0153be05 MK |
75 | static int mark_link(struct object *obj, int type, void *data) |
76 | { | |
77 | if (!obj) | |
78 | return -1; | |
79 | ||
80 | if (type != OBJ_ANY && obj->type != type) | |
81 | die("object type mismatch at %s", sha1_to_hex(obj->sha1)); | |
82 | ||
83 | obj->flags |= FLAG_LINK; | |
84 | return 0; | |
85 | } | |
86 | ||
87 | /* The content of each linked object must have been checked | |
88 | or it must be already present in the object database */ | |
89 | static void check_object(struct object *obj) | |
90 | { | |
91 | if (!obj) | |
92 | return; | |
93 | ||
94 | if (!(obj->flags & FLAG_LINK)) | |
95 | return; | |
96 | ||
97 | if (!(obj->flags & FLAG_CHECKED)) { | |
98 | unsigned long size; | |
99 | int type = sha1_object_info(obj->sha1, &size); | |
100 | if (type != obj->type || type <= 0) | |
101 | die("object of unexpected type"); | |
102 | obj->flags |= FLAG_CHECKED; | |
103 | return; | |
104 | } | |
105 | } | |
106 | ||
107 | static void check_objects(void) | |
108 | { | |
109 | unsigned i, max; | |
110 | ||
111 | max = get_max_object_index(); | |
112 | for (i = 0; i < max; i++) | |
113 | check_object(get_indexed_object(i)); | |
114 | } | |
115 | ||
116 | ||
636171cb | 117 | /* Discard current buffer used content. */ |
a6e8a767 | 118 | static void flush(void) |
636171cb NP |
119 | { |
120 | if (input_offset) { | |
121 | if (output_fd >= 0) | |
122 | write_or_die(output_fd, input_buffer, input_offset); | |
9126f009 | 123 | git_SHA1_Update(&input_ctx, input_buffer, input_offset); |
554a2636 | 124 | memmove(input_buffer, input_buffer + input_offset, input_len); |
636171cb NP |
125 | input_offset = 0; |
126 | } | |
127 | } | |
128 | ||
2d477051 NP |
129 | /* |
130 | * Make sure at least "min" bytes are available in the buffer, and | |
131 | * return the pointer to the buffer. | |
132 | */ | |
b89c4e93 | 133 | static void *fill(int min) |
9cf6d335 | 134 | { |
2d477051 NP |
135 | if (min <= input_len) |
136 | return input_buffer + input_offset; | |
137 | if (min > sizeof(input_buffer)) | |
138 | die("cannot fill %d bytes", min); | |
636171cb | 139 | flush(); |
2d477051 | 140 | do { |
8a912bcb | 141 | ssize_t ret = xread(input_fd, input_buffer + input_len, |
2d477051 NP |
142 | sizeof(input_buffer) - input_len); |
143 | if (ret <= 0) { | |
144 | if (!ret) | |
145 | die("early EOF"); | |
146 | die("read error on input: %s", strerror(errno)); | |
147 | } | |
148 | input_len += ret; | |
218558af NP |
149 | if (from_stdin) |
150 | display_throughput(progress, consumed_bytes + input_len); | |
2d477051 NP |
151 | } while (input_len < min); |
152 | return input_buffer; | |
153 | } | |
154 | ||
155 | static void use(int bytes) | |
156 | { | |
157 | if (bytes > input_len) | |
158 | die("used more bytes than were available"); | |
ee5743ce | 159 | input_crc32 = crc32(input_crc32, input_buffer + input_offset, bytes); |
2d477051 NP |
160 | input_len -= bytes; |
161 | input_offset += bytes; | |
d7dd0223 NP |
162 | |
163 | /* make sure off_t is sufficiently large not to wrap */ | |
164 | if (consumed_bytes > consumed_bytes + bytes) | |
165 | die("pack too large for current definition of off_t"); | |
2d477051 NP |
166 | consumed_bytes += bytes; |
167 | } | |
9cf6d335 | 168 | |
4049b9cf | 169 | static char *open_pack_file(char *pack_name) |
2d477051 | 170 | { |
e42797f5 NP |
171 | if (from_stdin) { |
172 | input_fd = 0; | |
173 | if (!pack_name) { | |
174 | static char tmpfile[PATH_MAX]; | |
6e180cdc JH |
175 | output_fd = odb_mkstemp(tmpfile, sizeof(tmpfile), |
176 | "pack/tmp_pack_XXXXXX"); | |
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) | |
d7530708 | 181 | die("unable to create %s: %s", 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 | } |
9126f009 | 191 | git_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 | ||
6a87ed97 NP |
224 | static void free_base_data(struct base_data *c) |
225 | { | |
226 | if (c->data) { | |
227 | free(c->data); | |
228 | c->data = NULL; | |
229 | base_cache_used -= c->size; | |
230 | } | |
231 | } | |
232 | ||
92392b4a SP |
233 | static void prune_base_data(struct base_data *retain) |
234 | { | |
8e24cbae | 235 | struct base_data *b; |
92392b4a SP |
236 | for (b = base_cache; |
237 | base_cache_used > delta_base_cache_limit && b; | |
238 | b = b->child) { | |
6a87ed97 NP |
239 | if (b->data && b != retain) |
240 | free_base_data(b); | |
92392b4a SP |
241 | } |
242 | } | |
243 | ||
4a438cab SP |
244 | static void link_base_data(struct base_data *base, struct base_data *c) |
245 | { | |
246 | if (base) | |
247 | base->child = c; | |
248 | else | |
249 | base_cache = c; | |
250 | ||
251 | c->base = base; | |
252 | c->child = NULL; | |
9441b61d NP |
253 | if (c->data) |
254 | base_cache_used += c->size; | |
92392b4a | 255 | prune_base_data(c); |
4a438cab SP |
256 | } |
257 | ||
258 | static void unlink_base_data(struct base_data *c) | |
259 | { | |
260 | struct base_data *base = c->base; | |
261 | if (base) | |
262 | base->child = NULL; | |
263 | else | |
264 | base_cache = NULL; | |
6a87ed97 | 265 | free_base_data(c); |
4a438cab SP |
266 | } |
267 | ||
2d477051 | 268 | static void *unpack_entry_data(unsigned long offset, unsigned long size) |
9cf6d335 | 269 | { |
9cf6d335 SV |
270 | z_stream stream; |
271 | void *buf = xmalloc(size); | |
272 | ||
273 | memset(&stream, 0, sizeof(stream)); | |
274 | stream.next_out = buf; | |
275 | stream.avail_out = size; | |
2d477051 NP |
276 | stream.next_in = fill(1); |
277 | stream.avail_in = input_len; | |
39c68542 | 278 | git_inflate_init(&stream); |
9cf6d335 SV |
279 | |
280 | for (;;) { | |
39c68542 | 281 | int ret = git_inflate(&stream, 0); |
2d477051 NP |
282 | use(input_len - stream.avail_in); |
283 | if (stream.total_out == size && ret == Z_STREAM_END) | |
9cf6d335 SV |
284 | break; |
285 | if (ret != Z_OK) | |
286 | bad_object(offset, "inflate returned %d", ret); | |
2d477051 NP |
287 | stream.next_in = fill(1); |
288 | stream.avail_in = input_len; | |
9cf6d335 | 289 | } |
39c68542 | 290 | git_inflate_end(&stream); |
9cf6d335 SV |
291 | return buf; |
292 | } | |
293 | ||
2d477051 | 294 | static void *unpack_raw_entry(struct object_entry *obj, union delta_base *delta_base) |
9cf6d335 | 295 | { |
2d477051 | 296 | unsigned char *p, c; |
d7dd0223 NP |
297 | unsigned long size; |
298 | off_t base_offset; | |
9cf6d335 | 299 | unsigned shift; |
ee5743ce | 300 | void *data; |
9cf6d335 | 301 | |
aa7e44bf | 302 | obj->idx.offset = consumed_bytes; |
ee5743ce | 303 | input_crc32 = crc32(0, Z_NULL, 0); |
2d477051 NP |
304 | |
305 | p = fill(1); | |
306 | c = *p; | |
307 | use(1); | |
308 | obj->type = (c >> 4) & 7; | |
9cf6d335 SV |
309 | size = (c & 15); |
310 | shift = 4; | |
311 | while (c & 0x80) { | |
2d477051 NP |
312 | p = fill(1); |
313 | c = *p; | |
314 | use(1); | |
9cf6d335 SV |
315 | size += (c & 0x7fUL) << shift; |
316 | shift += 7; | |
317 | } | |
2d477051 | 318 | obj->size = size; |
9cf6d335 | 319 | |
2d477051 | 320 | switch (obj->type) { |
eb32d236 | 321 | case OBJ_REF_DELTA: |
2d477051 NP |
322 | hashcpy(delta_base->sha1, fill(20)); |
323 | use(20); | |
53dda6ff NP |
324 | break; |
325 | case OBJ_OFS_DELTA: | |
326 | memset(delta_base, 0, sizeof(*delta_base)); | |
2d477051 NP |
327 | p = fill(1); |
328 | c = *p; | |
329 | use(1); | |
53dda6ff NP |
330 | base_offset = c & 127; |
331 | while (c & 128) { | |
332 | base_offset += 1; | |
8723f216 | 333 | if (!base_offset || MSB(base_offset, 7)) |
aa7e44bf | 334 | bad_object(obj->idx.offset, "offset value overflow for delta base object"); |
2d477051 NP |
335 | p = fill(1); |
336 | c = *p; | |
337 | use(1); | |
53dda6ff NP |
338 | base_offset = (base_offset << 7) + (c & 127); |
339 | } | |
aa7e44bf | 340 | delta_base->offset = obj->idx.offset - base_offset; |
d8f32556 | 341 | if (delta_base->offset <= 0 || delta_base->offset >= obj->idx.offset) |
aa7e44bf | 342 | bad_object(obj->idx.offset, "delta base offset is out of bound"); |
53dda6ff | 343 | break; |
9cf6d335 SV |
344 | case OBJ_COMMIT: |
345 | case OBJ_TREE: | |
346 | case OBJ_BLOB: | |
347 | case OBJ_TAG: | |
9cf6d335 SV |
348 | break; |
349 | default: | |
aa7e44bf | 350 | bad_object(obj->idx.offset, "unknown object type %d", obj->type); |
9cf6d335 | 351 | } |
aa7e44bf | 352 | obj->hdr_size = consumed_bytes - obj->idx.offset; |
2d477051 | 353 | |
aa7e44bf GB |
354 | data = unpack_entry_data(obj->idx.offset, obj->size); |
355 | obj->idx.crc32 = input_crc32; | |
ee5743ce | 356 | return data; |
2d477051 NP |
357 | } |
358 | ||
b89c4e93 | 359 | static void *get_data_from_pack(struct object_entry *obj) |
2d477051 | 360 | { |
a91ef6e7 | 361 | off_t from = obj[0].idx.offset + obj[0].hdr_size; |
aa7e44bf | 362 | unsigned long len = obj[1].idx.offset - from; |
a91d49cd | 363 | unsigned long rdy = 0; |
6d2fa7f1 | 364 | unsigned char *src, *data; |
2d477051 NP |
365 | z_stream stream; |
366 | int st; | |
9cf6d335 | 367 | |
6d2fa7f1 | 368 | src = xmalloc(len); |
a91d49cd SP |
369 | data = src; |
370 | do { | |
371 | ssize_t n = pread(pack_fd, data + rdy, len - rdy, from + rdy); | |
fb742436 | 372 | if (n < 0) |
a91d49cd | 373 | die("cannot pread pack file: %s", strerror(errno)); |
fb742436 ST |
374 | if (!n) |
375 | die("premature end of pack file, %lu bytes missing", | |
376 | len - rdy); | |
a91d49cd SP |
377 | rdy += n; |
378 | } while (rdy < len); | |
2d477051 NP |
379 | data = xmalloc(obj->size); |
380 | memset(&stream, 0, sizeof(stream)); | |
381 | stream.next_out = data; | |
382 | stream.avail_out = obj->size; | |
6d2fa7f1 | 383 | stream.next_in = src; |
2d477051 | 384 | stream.avail_in = len; |
39c68542 LT |
385 | git_inflate_init(&stream); |
386 | while ((st = git_inflate(&stream, Z_FINISH)) == Z_OK); | |
387 | git_inflate_end(&stream); | |
2d477051 NP |
388 | if (st != Z_STREAM_END || stream.total_out != obj->size) |
389 | die("serious inflate inconsistency"); | |
6d2fa7f1 | 390 | free(src); |
9cf6d335 SV |
391 | return data; |
392 | } | |
393 | ||
53dda6ff | 394 | static int find_delta(const union delta_base *base) |
9cf6d335 SV |
395 | { |
396 | int first = 0, last = nr_deltas; | |
397 | ||
398 | while (first < last) { | |
399 | int next = (first + last) / 2; | |
400 | struct delta_entry *delta = &deltas[next]; | |
401 | int cmp; | |
402 | ||
3c552873 | 403 | cmp = memcmp(base, &delta->base, UNION_BASE_SZ); |
9cf6d335 SV |
404 | if (!cmp) |
405 | return next; | |
406 | if (cmp < 0) { | |
407 | last = next; | |
408 | continue; | |
409 | } | |
410 | first = next+1; | |
411 | } | |
412 | return -first-1; | |
413 | } | |
414 | ||
6a87ed97 NP |
415 | static void find_delta_children(const union delta_base *base, |
416 | int *first_index, int *last_index) | |
9cf6d335 | 417 | { |
53dda6ff | 418 | int first = find_delta(base); |
9cf6d335 SV |
419 | int last = first; |
420 | int end = nr_deltas - 1; | |
421 | ||
6a87ed97 NP |
422 | if (first < 0) { |
423 | *first_index = 0; | |
424 | *last_index = -1; | |
425 | return; | |
426 | } | |
3c552873 | 427 | while (first > 0 && !memcmp(&deltas[first - 1].base, base, UNION_BASE_SZ)) |
9cf6d335 | 428 | --first; |
3c552873 | 429 | while (last < end && !memcmp(&deltas[last + 1].base, base, UNION_BASE_SZ)) |
9cf6d335 SV |
430 | ++last; |
431 | *first_index = first; | |
432 | *last_index = last; | |
9cf6d335 SV |
433 | } |
434 | ||
435 | static void sha1_object(const void *data, unsigned long size, | |
9096c660 | 436 | enum object_type type, unsigned char *sha1) |
9cf6d335 | 437 | { |
ce9fbf16 | 438 | hash_sha1_file(data, size, typename(type), sha1); |
9096c660 | 439 | if (has_sha1_file(sha1)) { |
8685da42 NP |
440 | void *has_data; |
441 | enum object_type has_type; | |
442 | unsigned long has_size; | |
443 | has_data = read_sha1_file(sha1, &has_type, &has_size); | |
444 | if (!has_data) | |
445 | die("cannot read existing object %s", sha1_to_hex(sha1)); | |
446 | if (size != has_size || type != has_type || | |
447 | memcmp(data, has_data, size) != 0) | |
448 | die("SHA1 COLLISION FOUND WITH %s !", sha1_to_hex(sha1)); | |
bbf4b41b | 449 | free(has_data); |
8685da42 | 450 | } |
0153be05 MK |
451 | if (strict) { |
452 | if (type == OBJ_BLOB) { | |
453 | struct blob *blob = lookup_blob(sha1); | |
454 | if (blob) | |
455 | blob->object.flags |= FLAG_CHECKED; | |
456 | else | |
457 | die("invalid blob object %s", sha1_to_hex(sha1)); | |
458 | } else { | |
459 | struct object *obj; | |
460 | int eaten; | |
461 | void *buf = (void *) data; | |
462 | ||
463 | /* | |
464 | * we do not need to free the memory here, as the | |
465 | * buf is deleted by the caller. | |
466 | */ | |
467 | obj = parse_object_buffer(sha1, type, size, buf, &eaten); | |
468 | if (!obj) | |
469 | die("invalid %s", typename(type)); | |
470 | if (fsck_object(obj, 1, fsck_error_function)) | |
471 | die("Error in object"); | |
472 | if (fsck_walk(obj, mark_link, 0)) | |
473 | die("Not all child objects of %s are reachable", sha1_to_hex(obj->sha1)); | |
474 | ||
475 | if (obj->type == OBJ_TREE) { | |
476 | struct tree *item = (struct tree *) obj; | |
477 | item->buffer = NULL; | |
478 | } | |
479 | if (obj->type == OBJ_COMMIT) { | |
480 | struct commit *commit = (struct commit *) obj; | |
481 | commit->buffer = NULL; | |
482 | } | |
483 | obj->flags |= FLAG_CHECKED; | |
484 | } | |
485 | } | |
9cf6d335 SV |
486 | } |
487 | ||
92392b4a SP |
488 | static void *get_base_data(struct base_data *c) |
489 | { | |
490 | if (!c->data) { | |
491 | struct object_entry *obj = c->obj; | |
492 | ||
493 | if (obj->type == OBJ_REF_DELTA || obj->type == OBJ_OFS_DELTA) { | |
494 | void *base = get_base_data(c->base); | |
495 | void *raw = get_data_from_pack(obj); | |
496 | c->data = patch_delta( | |
497 | base, c->base->size, | |
498 | raw, obj->size, | |
499 | &c->size); | |
500 | free(raw); | |
501 | if (!c->data) | |
502 | bad_object(obj->idx.offset, "failed to apply delta"); | |
9441b61d | 503 | } else { |
92392b4a | 504 | c->data = get_data_from_pack(obj); |
9441b61d NP |
505 | c->size = obj->size; |
506 | } | |
92392b4a SP |
507 | |
508 | base_cache_used += c->size; | |
509 | prune_base_data(c); | |
510 | } | |
511 | return c->data; | |
512 | } | |
513 | ||
f41aebd4 | 514 | static void resolve_delta(struct object_entry *delta_obj, |
9441b61d | 515 | struct base_data *base, struct base_data *result) |
9cf6d335 | 516 | { |
ce3f6dc6 | 517 | void *base_data, *delta_data; |
9cf6d335 | 518 | |
ce3f6dc6 | 519 | delta_obj->real_type = base->obj->real_type; |
636171cb | 520 | delta_data = get_data_from_pack(delta_obj); |
ce3f6dc6 | 521 | base_data = get_base_data(base); |
9441b61d | 522 | result->obj = delta_obj; |
ce3f6dc6 NP |
523 | result->data = patch_delta(base_data, base->size, |
524 | delta_data, delta_obj->size, &result->size); | |
9cf6d335 | 525 | free(delta_data); |
9441b61d | 526 | if (!result->data) |
aa7e44bf | 527 | bad_object(delta_obj->idx.offset, "failed to apply delta"); |
9441b61d NP |
528 | sha1_object(result->data, result->size, delta_obj->real_type, |
529 | delta_obj->idx.sha1); | |
636171cb | 530 | nr_resolved_deltas++; |
9441b61d NP |
531 | } |
532 | ||
533 | static void find_unresolved_deltas(struct base_data *base, | |
534 | struct base_data *prev_base) | |
535 | { | |
6a87ed97 | 536 | int i, ref_first, ref_last, ofs_first, ofs_last; |
9441b61d NP |
537 | |
538 | /* | |
539 | * This is a recursive function. Those brackets should help reducing | |
540 | * stack usage by limiting the scope of the delta_base union. | |
541 | */ | |
542 | { | |
543 | union delta_base base_spec; | |
544 | ||
545 | hashcpy(base_spec.sha1, base->obj->idx.sha1); | |
6a87ed97 | 546 | find_delta_children(&base_spec, &ref_first, &ref_last); |
53dda6ff | 547 | |
9441b61d NP |
548 | memset(&base_spec, 0, sizeof(base_spec)); |
549 | base_spec.offset = base->obj->idx.offset; | |
6a87ed97 | 550 | find_delta_children(&base_spec, &ofs_first, &ofs_last); |
9441b61d | 551 | } |
4a438cab | 552 | |
9ed19614 NP |
553 | if (ref_last == -1 && ofs_last == -1) { |
554 | free(base->data); | |
9441b61d | 555 | return; |
9ed19614 | 556 | } |
53dda6ff | 557 | |
9441b61d | 558 | link_base_data(prev_base, base); |
4a438cab | 559 | |
6a87ed97 NP |
560 | for (i = ref_first; i <= ref_last; i++) { |
561 | struct object_entry *child = objects + deltas[i].obj_no; | |
562 | if (child->real_type == OBJ_REF_DELTA) { | |
563 | struct base_data result; | |
564 | resolve_delta(child, base, &result); | |
565 | if (i == ref_last && ofs_last == -1) | |
566 | free_base_data(base); | |
567 | find_unresolved_deltas(&result, base); | |
636171cb | 568 | } |
53dda6ff NP |
569 | } |
570 | ||
6a87ed97 NP |
571 | for (i = ofs_first; i <= ofs_last; i++) { |
572 | struct object_entry *child = objects + deltas[i].obj_no; | |
573 | if (child->real_type == OBJ_OFS_DELTA) { | |
574 | struct base_data result; | |
575 | resolve_delta(child, base, &result); | |
576 | if (i == ofs_last) | |
577 | free_base_data(base); | |
578 | find_unresolved_deltas(&result, base); | |
636171cb | 579 | } |
9cf6d335 | 580 | } |
53dda6ff | 581 | |
9441b61d | 582 | unlink_base_data(base); |
9cf6d335 SV |
583 | } |
584 | ||
585 | static int compare_delta_entry(const void *a, const void *b) | |
586 | { | |
587 | const struct delta_entry *delta_a = a; | |
588 | const struct delta_entry *delta_b = b; | |
3c552873 | 589 | return memcmp(&delta_a->base, &delta_b->base, UNION_BASE_SZ); |
9cf6d335 SV |
590 | } |
591 | ||
2d477051 NP |
592 | /* Parse all objects and return the pack content SHA1 hash */ |
593 | static void parse_pack_objects(unsigned char *sha1) | |
9cf6d335 | 594 | { |
96a02f8f | 595 | int i; |
53dda6ff | 596 | struct delta_entry *delta = deltas; |
2d477051 | 597 | struct stat st; |
9cf6d335 SV |
598 | |
599 | /* | |
600 | * First pass: | |
601 | * - find locations of all objects; | |
602 | * - calculate SHA1 of all non-delta objects; | |
b89c4e93 | 603 | * - remember base (SHA1 or offset) for all deltas. |
9cf6d335 | 604 | */ |
13aaf148 | 605 | if (verbose) |
29e63ed3 NP |
606 | progress = start_progress( |
607 | from_stdin ? "Receiving objects" : "Indexing objects", | |
608 | nr_objects); | |
9cf6d335 SV |
609 | for (i = 0; i < nr_objects; i++) { |
610 | struct object_entry *obj = &objects[i]; | |
f41aebd4 | 611 | void *data = unpack_raw_entry(obj, &delta->base); |
9cf6d335 | 612 | obj->real_type = obj->type; |
53dda6ff NP |
613 | if (obj->type == OBJ_REF_DELTA || obj->type == OBJ_OFS_DELTA) { |
614 | nr_deltas++; | |
636171cb | 615 | delta->obj_no = i; |
53dda6ff | 616 | delta++; |
9cf6d335 | 617 | } else |
aa7e44bf | 618 | sha1_object(data, obj->size, obj->type, obj->idx.sha1); |
9cf6d335 | 619 | free(data); |
4d4fcc54 | 620 | display_progress(progress, i+1); |
9cf6d335 | 621 | } |
aa7e44bf | 622 | objects[i].idx.offset = consumed_bytes; |
4d4fcc54 | 623 | stop_progress(&progress); |
2d477051 NP |
624 | |
625 | /* Check pack integrity */ | |
636171cb | 626 | flush(); |
9126f009 | 627 | git_SHA1_Final(sha1, &input_ctx); |
2d477051 | 628 | if (hashcmp(fill(20), sha1)) |
e42797f5 | 629 | die("pack is corrupted (SHA1 mismatch)"); |
9bee2478 | 630 | use(20); |
2d477051 NP |
631 | |
632 | /* If input_fd is a file, we should have reached its end now. */ | |
633 | if (fstat(input_fd, &st)) | |
e42797f5 | 634 | die("cannot fstat packfile: %s", strerror(errno)); |
fa257b05 JS |
635 | if (S_ISREG(st.st_mode) && |
636 | lseek(input_fd, 0, SEEK_CUR) - input_len != st.st_size) | |
e42797f5 | 637 | die("pack has junk at the end"); |
9cf6d335 | 638 | |
3c9af366 NP |
639 | if (!nr_deltas) |
640 | return; | |
641 | ||
53dda6ff | 642 | /* Sort deltas by base SHA1/offset for fast searching */ |
9cf6d335 SV |
643 | qsort(deltas, nr_deltas, sizeof(struct delta_entry), |
644 | compare_delta_entry); | |
645 | ||
646 | /* | |
647 | * Second pass: | |
648 | * - for all non-delta objects, look if it is used as a base for | |
649 | * deltas; | |
650 | * - if used as a base, uncompress the object and apply all deltas, | |
651 | * recursively checking if the resulting object is used as a base | |
652 | * for some more deltas. | |
653 | */ | |
13aaf148 | 654 | if (verbose) |
dc6a0757 | 655 | progress = start_progress("Resolving deltas", nr_deltas); |
9cf6d335 SV |
656 | for (i = 0; i < nr_objects; i++) { |
657 | struct object_entry *obj = &objects[i]; | |
f41aebd4 | 658 | struct base_data base_obj; |
9cf6d335 | 659 | |
53dda6ff | 660 | if (obj->type == OBJ_REF_DELTA || obj->type == OBJ_OFS_DELTA) |
9cf6d335 | 661 | continue; |
03993e13 | 662 | base_obj.obj = obj; |
9441b61d NP |
663 | base_obj.data = NULL; |
664 | find_unresolved_deltas(&base_obj, NULL); | |
4d4fcc54 | 665 | display_progress(progress, nr_resolved_deltas); |
9cf6d335 | 666 | } |
636171cb NP |
667 | } |
668 | ||
8522148f | 669 | static int write_compressed(struct sha1file *f, void *in, unsigned int size) |
636171cb NP |
670 | { |
671 | z_stream stream; | |
672 | unsigned long maxsize; | |
673 | void *out; | |
674 | ||
675 | memset(&stream, 0, sizeof(stream)); | |
676 | deflateInit(&stream, zlib_compression_level); | |
677 | maxsize = deflateBound(&stream, size); | |
678 | out = xmalloc(maxsize); | |
679 | ||
680 | /* Compress it */ | |
681 | stream.next_in = in; | |
682 | stream.avail_in = size; | |
683 | stream.next_out = out; | |
684 | stream.avail_out = maxsize; | |
685 | while (deflate(&stream, Z_FINISH) == Z_OK); | |
686 | deflateEnd(&stream); | |
687 | ||
688 | size = stream.total_out; | |
8522148f | 689 | sha1write(f, out, size); |
636171cb NP |
690 | free(out); |
691 | return size; | |
692 | } | |
693 | ||
8522148f | 694 | static struct object_entry *append_obj_to_pack(struct sha1file *f, |
03993e13 | 695 | const unsigned char *sha1, void *buf, |
636171cb NP |
696 | unsigned long size, enum object_type type) |
697 | { | |
698 | struct object_entry *obj = &objects[nr_objects++]; | |
699 | unsigned char header[10]; | |
700 | unsigned long s = size; | |
701 | int n = 0; | |
702 | unsigned char c = (type << 4) | (s & 15); | |
703 | s >>= 4; | |
704 | while (s) { | |
705 | header[n++] = c | 0x80; | |
706 | c = s & 0x7f; | |
707 | s >>= 7; | |
708 | } | |
709 | header[n++] = c; | |
8522148f NP |
710 | crc32_begin(f); |
711 | sha1write(f, header, n); | |
72de2883 BS |
712 | obj[0].size = size; |
713 | obj[0].hdr_size = n; | |
714 | obj[0].type = type; | |
715 | obj[0].real_type = type; | |
aa7e44bf | 716 | obj[1].idx.offset = obj[0].idx.offset + n; |
8522148f NP |
717 | obj[1].idx.offset += write_compressed(f, buf, size); |
718 | obj[0].idx.crc32 = crc32_end(f); | |
838cd346 | 719 | sha1flush(f); |
aa7e44bf | 720 | hashcpy(obj->idx.sha1, sha1); |
03993e13 | 721 | return obj; |
636171cb NP |
722 | } |
723 | ||
724 | static int delta_pos_compare(const void *_a, const void *_b) | |
725 | { | |
726 | struct delta_entry *a = *(struct delta_entry **)_a; | |
727 | struct delta_entry *b = *(struct delta_entry **)_b; | |
728 | return a->obj_no - b->obj_no; | |
729 | } | |
9cf6d335 | 730 | |
8522148f | 731 | static void fix_unresolved_deltas(struct sha1file *f, int nr_unresolved) |
636171cb NP |
732 | { |
733 | struct delta_entry **sorted_by_pos; | |
96a02f8f | 734 | int i, n = 0; |
636171cb NP |
735 | |
736 | /* | |
737 | * Since many unresolved deltas may well be themselves base objects | |
738 | * for more unresolved deltas, we really want to include the | |
739 | * smallest number of base objects that would cover as much delta | |
740 | * as possible by picking the | |
741 | * trunc deltas first, allowing for other deltas to resolve without | |
742 | * additional base objects. Since most base objects are to be found | |
743 | * before deltas depending on them, a good heuristic is to start | |
744 | * resolving deltas in the same order as their position in the pack. | |
745 | */ | |
746 | sorted_by_pos = xmalloc(nr_unresolved * sizeof(*sorted_by_pos)); | |
9cf6d335 | 747 | for (i = 0; i < nr_deltas; i++) { |
636171cb NP |
748 | if (objects[deltas[i].obj_no].real_type != OBJ_REF_DELTA) |
749 | continue; | |
750 | sorted_by_pos[n++] = &deltas[i]; | |
9cf6d335 | 751 | } |
636171cb NP |
752 | qsort(sorted_by_pos, n, sizeof(*sorted_by_pos), delta_pos_compare); |
753 | ||
754 | for (i = 0; i < n; i++) { | |
755 | struct delta_entry *d = sorted_by_pos[i]; | |
21666f1a | 756 | enum object_type type; |
f41aebd4 | 757 | struct base_data base_obj; |
636171cb NP |
758 | |
759 | if (objects[d->obj_no].real_type != OBJ_REF_DELTA) | |
760 | continue; | |
f41aebd4 SP |
761 | base_obj.data = read_sha1_file(d->base.sha1, &type, &base_obj.size); |
762 | if (!base_obj.data) | |
636171cb | 763 | continue; |
636171cb | 764 | |
03993e13 SP |
765 | if (check_sha1_signature(d->base.sha1, base_obj.data, |
766 | base_obj.size, typename(type))) | |
767 | die("local object %s is corrupt", sha1_to_hex(d->base.sha1)); | |
8522148f NP |
768 | base_obj.obj = append_obj_to_pack(f, d->base.sha1, |
769 | base_obj.data, base_obj.size, type); | |
9441b61d | 770 | find_unresolved_deltas(&base_obj, NULL); |
4d4fcc54 | 771 | display_progress(progress, nr_resolved_deltas); |
636171cb NP |
772 | } |
773 | free(sorted_by_pos); | |
774 | } | |
775 | ||
e42797f5 NP |
776 | static void final(const char *final_pack_name, const char *curr_pack_name, |
777 | const char *final_index_name, const char *curr_index_name, | |
b8077709 | 778 | const char *keep_name, const char *keep_msg, |
e42797f5 NP |
779 | unsigned char *sha1) |
780 | { | |
3a55602e | 781 | const char *report = "pack"; |
e42797f5 NP |
782 | char name[PATH_MAX]; |
783 | int err; | |
784 | ||
785 | if (!from_stdin) { | |
786 | close(input_fd); | |
787 | } else { | |
4c81b03e | 788 | fsync_or_die(output_fd, curr_pack_name); |
e42797f5 NP |
789 | err = close(output_fd); |
790 | if (err) | |
791 | die("error while closing pack file: %s", strerror(errno)); | |
e42797f5 NP |
792 | } |
793 | ||
b8077709 SP |
794 | if (keep_msg) { |
795 | int keep_fd, keep_msg_len = strlen(keep_msg); | |
6e180cdc JH |
796 | |
797 | if (!keep_name) | |
798 | keep_fd = odb_pack_keep(name, sizeof(name), sha1); | |
799 | else | |
800 | keep_fd = open(keep_name, O_RDWR|O_CREAT|O_EXCL, 0600); | |
801 | ||
9ca4a201 NP |
802 | if (keep_fd < 0) { |
803 | if (errno != EEXIST) | |
6e180cdc JH |
804 | die("cannot write keep file '%s' (%s)", |
805 | keep_name, strerror(errno)); | |
9ca4a201 NP |
806 | } else { |
807 | if (keep_msg_len > 0) { | |
808 | write_or_die(keep_fd, keep_msg, keep_msg_len); | |
809 | write_or_die(keep_fd, "\n", 1); | |
810 | } | |
91c8d590 | 811 | if (close(keep_fd) != 0) |
6e180cdc JH |
812 | die("cannot close written keep file '%s' (%s)", |
813 | keep_name, strerror(errno)); | |
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"); | |
fb8b1936 | 826 | } else if (from_stdin) |
33b65030 | 827 | chmod(final_pack_name, 0444); |
e42797f5 | 828 | |
e42797f5 NP |
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"); | |
fb8b1936 JH |
837 | } else |
838 | chmod(final_index_name, 0444); | |
576162a4 NP |
839 | |
840 | if (!from_stdin) { | |
841 | printf("%s\n", sha1_to_hex(sha1)); | |
842 | } else { | |
843 | char buf[48]; | |
844 | int len = snprintf(buf, sizeof(buf), "%s\t%s\n", | |
845 | report, sha1_to_hex(sha1)); | |
d1b2ddc8 | 846 | write_or_die(1, buf, len); |
576162a4 NP |
847 | |
848 | /* | |
849 | * Let's just mimic git-unpack-objects here and write | |
850 | * the last part of the input buffer to stdout. | |
851 | */ | |
852 | while (input_len) { | |
853 | err = xwrite(1, input_buffer + input_offset, input_len); | |
854 | if (err <= 0) | |
855 | break; | |
856 | input_len -= err; | |
857 | input_offset += err; | |
858 | } | |
859 | } | |
9cf6d335 SV |
860 | } |
861 | ||
ef90d6d4 | 862 | static int git_index_pack_config(const char *k, const char *v, void *cb) |
4d00bda2 NP |
863 | { |
864 | if (!strcmp(k, "pack.indexversion")) { | |
865 | pack_idx_default_version = git_config_int(k, v); | |
866 | if (pack_idx_default_version > 2) | |
6e1c2344 RJ |
867 | die("bad pack.indexversion=%"PRIu32, |
868 | pack_idx_default_version); | |
4d00bda2 NP |
869 | return 0; |
870 | } | |
ef90d6d4 | 871 | return git_default_config(k, v, cb); |
4d00bda2 NP |
872 | } |
873 | ||
9cf6d335 SV |
874 | int main(int argc, char **argv) |
875 | { | |
636171cb | 876 | int i, fix_thin_pack = 0; |
4049b9cf NP |
877 | char *curr_pack, *pack_name = NULL; |
878 | char *curr_index, *index_name = NULL; | |
b8077709 SP |
879 | const char *keep_name = NULL, *keep_msg = NULL; |
880 | char *index_name_buf = NULL, *keep_name_buf = NULL; | |
aa7e44bf | 881 | struct pack_idx_entry **idx_objects; |
8522148f | 882 | unsigned char pack_sha1[20]; |
9cf6d335 | 883 | |
2fb3f6db SP |
884 | git_extract_argv0_path(argv[0]); |
885 | ||
a672ea6a NP |
886 | /* |
887 | * We wish to read the repository's config file if any, and | |
888 | * for that it is necessary to call setup_git_directory_gently(). | |
889 | * However if the cwd was inside .git/objects/pack/ then we need | |
890 | * to go back there or all the pack name arguments will be wrong. | |
891 | * And in that case we cannot rely on any prefix returned by | |
892 | * setup_git_directory_gently() either. | |
893 | */ | |
894 | { | |
895 | char cwd[PATH_MAX+1]; | |
896 | int nongit; | |
897 | ||
898 | if (!getcwd(cwd, sizeof(cwd)-1)) | |
899 | die("Unable to get current working directory"); | |
900 | setup_git_directory_gently(&nongit); | |
901 | git_config(git_index_pack_config, NULL); | |
902 | if (chdir(cwd)) | |
903 | die("Cannot come back to cwd"); | |
904 | } | |
4d00bda2 | 905 | |
9cf6d335 | 906 | for (i = 1; i < argc; i++) { |
4049b9cf | 907 | char *arg = argv[i]; |
9cf6d335 SV |
908 | |
909 | if (*arg == '-') { | |
e42797f5 NP |
910 | if (!strcmp(arg, "--stdin")) { |
911 | from_stdin = 1; | |
636171cb NP |
912 | } else if (!strcmp(arg, "--fix-thin")) { |
913 | fix_thin_pack = 1; | |
0153be05 MK |
914 | } else if (!strcmp(arg, "--strict")) { |
915 | strict = 1; | |
b8077709 SP |
916 | } else if (!strcmp(arg, "--keep")) { |
917 | keep_msg = ""; | |
cc44c765 | 918 | } else if (!prefixcmp(arg, "--keep=")) { |
b8077709 | 919 | keep_msg = arg + 7; |
cc44c765 | 920 | } else if (!prefixcmp(arg, "--pack_header=")) { |
bed006fb NP |
921 | struct pack_header *hdr; |
922 | char *c; | |
923 | ||
924 | hdr = (struct pack_header *)input_buffer; | |
925 | hdr->hdr_signature = htonl(PACK_SIGNATURE); | |
926 | hdr->hdr_version = htonl(strtoul(arg + 14, &c, 10)); | |
927 | if (*c != ',') | |
928 | die("bad %s", arg); | |
929 | hdr->hdr_entries = htonl(strtoul(c + 1, &c, 10)); | |
930 | if (*c) | |
931 | die("bad %s", arg); | |
932 | input_len = sizeof(*hdr); | |
3c9af366 NP |
933 | } else if (!strcmp(arg, "-v")) { |
934 | verbose = 1; | |
e42797f5 | 935 | } else if (!strcmp(arg, "-o")) { |
9cf6d335 SV |
936 | if (index_name || (i+1) >= argc) |
937 | usage(index_pack_usage); | |
938 | index_name = argv[++i]; | |
4ba7d711 NP |
939 | } else if (!prefixcmp(arg, "--index-version=")) { |
940 | char *c; | |
aa7e44bf GB |
941 | pack_idx_default_version = strtoul(arg + 16, &c, 10); |
942 | if (pack_idx_default_version > 2) | |
4ba7d711 NP |
943 | die("bad %s", arg); |
944 | if (*c == ',') | |
aa7e44bf GB |
945 | pack_idx_off32_limit = strtoul(c+1, &c, 0); |
946 | if (*c || pack_idx_off32_limit & 0x80000000) | |
4ba7d711 | 947 | die("bad %s", arg); |
9cf6d335 SV |
948 | } else |
949 | usage(index_pack_usage); | |
950 | continue; | |
951 | } | |
952 | ||
953 | if (pack_name) | |
954 | usage(index_pack_usage); | |
955 | pack_name = arg; | |
956 | } | |
957 | ||
e42797f5 | 958 | if (!pack_name && !from_stdin) |
9cf6d335 | 959 | usage(index_pack_usage); |
636171cb NP |
960 | if (fix_thin_pack && !from_stdin) |
961 | die("--fix-thin cannot be used without --stdin"); | |
e42797f5 | 962 | if (!index_name && pack_name) { |
9cf6d335 | 963 | int len = strlen(pack_name); |
5bb1cda5 | 964 | if (!has_extension(pack_name, ".pack")) |
9cf6d335 SV |
965 | die("packfile name '%s' does not end with '.pack'", |
966 | pack_name); | |
6689f087 | 967 | index_name_buf = xmalloc(len); |
9cf6d335 SV |
968 | memcpy(index_name_buf, pack_name, len - 5); |
969 | strcpy(index_name_buf + len - 5, ".idx"); | |
970 | index_name = index_name_buf; | |
971 | } | |
b8077709 SP |
972 | if (keep_msg && !keep_name && pack_name) { |
973 | int len = strlen(pack_name); | |
974 | if (!has_extension(pack_name, ".pack")) | |
975 | die("packfile name '%s' does not end with '.pack'", | |
976 | pack_name); | |
977 | keep_name_buf = xmalloc(len); | |
978 | memcpy(keep_name_buf, pack_name, len - 5); | |
979 | strcpy(keep_name_buf + len - 5, ".keep"); | |
980 | keep_name = keep_name_buf; | |
981 | } | |
9cf6d335 | 982 | |
e42797f5 | 983 | curr_pack = open_pack_file(pack_name); |
9cf6d335 | 984 | parse_pack_header(); |
636171cb NP |
985 | objects = xmalloc((nr_objects + 1) * sizeof(struct object_entry)); |
986 | deltas = xmalloc(nr_objects * sizeof(struct delta_entry)); | |
8522148f | 987 | parse_pack_objects(pack_sha1); |
96a02f8f | 988 | if (nr_deltas == nr_resolved_deltas) { |
4d4fcc54 | 989 | stop_progress(&progress); |
96a02f8f NP |
990 | /* Flush remaining pack final 20-byte SHA1. */ |
991 | flush(); | |
992 | } else { | |
636171cb | 993 | if (fix_thin_pack) { |
8522148f NP |
994 | struct sha1file *f; |
995 | unsigned char read_sha1[20], tail_sha1[20]; | |
a984a06a | 996 | char msg[48]; |
636171cb | 997 | int nr_unresolved = nr_deltas - nr_resolved_deltas; |
3c9af366 | 998 | int nr_objects_initial = nr_objects; |
636171cb NP |
999 | if (nr_unresolved <= 0) |
1000 | die("confusion beyond insanity"); | |
1001 | objects = xrealloc(objects, | |
1002 | (nr_objects + nr_unresolved + 1) | |
1003 | * sizeof(*objects)); | |
8522148f NP |
1004 | f = sha1fd(output_fd, curr_pack); |
1005 | fix_unresolved_deltas(f, nr_unresolved); | |
a984a06a NP |
1006 | sprintf(msg, "completed with %d local objects", |
1007 | nr_objects - nr_objects_initial); | |
1008 | stop_progress_msg(&progress, msg); | |
8522148f NP |
1009 | sha1close(f, tail_sha1, 0); |
1010 | hashcpy(read_sha1, pack_sha1); | |
1011 | fixup_pack_header_footer(output_fd, pack_sha1, | |
abeb40e5 | 1012 | curr_pack, nr_objects, |
8522148f NP |
1013 | read_sha1, consumed_bytes-20); |
1014 | if (hashcmp(read_sha1, tail_sha1) != 0) | |
1015 | die("Unexpected tail checksum for %s " | |
1016 | "(disk corruption?)", curr_pack); | |
636171cb NP |
1017 | } |
1018 | if (nr_deltas != nr_resolved_deltas) | |
1019 | die("pack has %d unresolved deltas", | |
1020 | nr_deltas - nr_resolved_deltas); | |
636171cb | 1021 | } |
9cf6d335 | 1022 | free(deltas); |
0153be05 MK |
1023 | if (strict) |
1024 | check_objects(); | |
aa7e44bf GB |
1025 | |
1026 | idx_objects = xmalloc((nr_objects) * sizeof(struct pack_idx_entry *)); | |
1027 | for (i = 0; i < nr_objects; i++) | |
1028 | idx_objects[i] = &objects[i].idx; | |
8522148f | 1029 | curr_index = write_idx_file(index_name, idx_objects, nr_objects, pack_sha1); |
aa7e44bf GB |
1030 | free(idx_objects); |
1031 | ||
b8077709 SP |
1032 | final(pack_name, curr_pack, |
1033 | index_name, curr_index, | |
1034 | keep_name, keep_msg, | |
8522148f | 1035 | pack_sha1); |
9cf6d335 SV |
1036 | free(objects); |
1037 | free(index_name_buf); | |
b8077709 | 1038 | free(keep_name_buf); |
c85228ed NP |
1039 | if (pack_name == NULL) |
1040 | free(curr_pack); | |
1041 | if (index_name == NULL) | |
1042 | free(curr_index); | |
9cf6d335 SV |
1043 | |
1044 | return 0; | |
1045 | } |