| 1 | #define USE_THE_REPOSITORY_VARIABLE |
| 2 | #define DISABLE_SIGN_COMPARE_WARNINGS |
| 3 | |
| 4 | #include "builtin.h" |
| 5 | #include "config.h" |
| 6 | #include "environment.h" |
| 7 | #include "gettext.h" |
| 8 | #include "git-zlib.h" |
| 9 | #include "hex.h" |
| 10 | #include "object-file.h" |
| 11 | #include "odb.h" |
| 12 | #include "odb/streaming.h" |
| 13 | #include "odb/transaction.h" |
| 14 | #include "object.h" |
| 15 | #include "delta.h" |
| 16 | #include "pack.h" |
| 17 | #include "blob.h" |
| 18 | #include "replace-object.h" |
| 19 | #include "strbuf.h" |
| 20 | #include "progress.h" |
| 21 | #include "decorate.h" |
| 22 | #include "fsck.h" |
| 23 | #include "packfile.h" |
| 24 | |
| 25 | static int dry_run, quiet, recover, has_errors, strict; |
| 26 | static const char unpack_usage[] = "git unpack-objects [-n] [-q] [-r] [--strict]"; |
| 27 | |
| 28 | static unsigned char buffer[DEFAULT_IO_BUFFER_SIZE]; |
| 29 | static unsigned int offset, len; |
| 30 | static off_t consumed_bytes; |
| 31 | static off_t max_input_size; |
| 32 | static struct git_hash_ctx ctx; |
| 33 | static struct fsck_options fsck_options; |
| 34 | static struct progress *progress; |
| 35 | |
| 36 | /* |
| 37 | * When running under --strict mode, objects whose reachability are |
| 38 | * suspect are kept in core without getting written in the object |
| 39 | * store. |
| 40 | */ |
| 41 | struct obj_buffer { |
| 42 | char *buffer; |
| 43 | unsigned long size; |
| 44 | }; |
| 45 | |
| 46 | static struct decoration obj_decorate; |
| 47 | |
| 48 | static struct obj_buffer *lookup_object_buffer(struct object *base) |
| 49 | { |
| 50 | return lookup_decoration(&obj_decorate, base); |
| 51 | } |
| 52 | |
| 53 | static void add_object_buffer(struct object *object, char *buffer, unsigned long size) |
| 54 | { |
| 55 | struct obj_buffer *obj; |
| 56 | CALLOC_ARRAY(obj, 1); |
| 57 | obj->buffer = buffer; |
| 58 | obj->size = size; |
| 59 | if (add_decoration(&obj_decorate, object, obj)) |
| 60 | die("object %s tried to add buffer twice!", oid_to_hex(&object->oid)); |
| 61 | } |
| 62 | |
| 63 | /* |
| 64 | * Make sure at least "min" bytes are available in the buffer, and |
| 65 | * return the pointer to the buffer. |
| 66 | */ |
| 67 | static void *fill(int min) |
| 68 | { |
| 69 | if (min <= len) |
| 70 | return buffer + offset; |
| 71 | if (min > sizeof(buffer)) |
| 72 | die("cannot fill %d bytes", min); |
| 73 | if (offset) { |
| 74 | git_hash_update(&ctx, buffer, offset); |
| 75 | memmove(buffer, buffer + offset, len); |
| 76 | offset = 0; |
| 77 | } |
| 78 | do { |
| 79 | ssize_t ret = xread(0, buffer + len, sizeof(buffer) - len); |
| 80 | if (ret <= 0) { |
| 81 | if (!ret) |
| 82 | die("early EOF"); |
| 83 | die_errno("read error on input"); |
| 84 | } |
| 85 | len += ret; |
| 86 | } while (len < min); |
| 87 | return buffer; |
| 88 | } |
| 89 | |
| 90 | static void use(int bytes) |
| 91 | { |
| 92 | if (bytes > len) |
| 93 | die("used more bytes than were available"); |
| 94 | len -= bytes; |
| 95 | offset += bytes; |
| 96 | |
| 97 | /* make sure off_t is sufficiently large not to wrap */ |
| 98 | if (signed_add_overflows(consumed_bytes, bytes)) |
| 99 | die("pack too large for current definition of off_t"); |
| 100 | consumed_bytes += bytes; |
| 101 | if (max_input_size && consumed_bytes > max_input_size) |
| 102 | die(_("pack exceeds maximum allowed size")); |
| 103 | display_throughput(progress, consumed_bytes); |
| 104 | } |
| 105 | |
| 106 | /* |
| 107 | * Decompress zstream from the standard input into a newly |
| 108 | * allocated buffer of specified size and return the buffer. |
| 109 | * The caller is responsible to free the returned buffer. |
| 110 | * |
| 111 | * But for dry_run mode, "get_data()" is only used to check the |
| 112 | * integrity of data, and the returned buffer is not used at all. |
| 113 | * Therefore, in dry_run mode, "get_data()" will release the small |
| 114 | * allocated buffer which is reused to hold temporary zstream output |
| 115 | * and return NULL instead of returning garbage data. |
| 116 | */ |
| 117 | static void *get_data(unsigned long size) |
| 118 | { |
| 119 | git_zstream stream; |
| 120 | unsigned long bufsize = dry_run && size > 8192 ? 8192 : size; |
| 121 | void *buf = xmallocz(bufsize); |
| 122 | |
| 123 | memset(&stream, 0, sizeof(stream)); |
| 124 | |
| 125 | stream.next_out = buf; |
| 126 | stream.avail_out = bufsize; |
| 127 | stream.next_in = fill(1); |
| 128 | stream.avail_in = len; |
| 129 | git_inflate_init(&stream); |
| 130 | |
| 131 | for (;;) { |
| 132 | int ret = git_inflate(&stream, 0); |
| 133 | use(len - stream.avail_in); |
| 134 | if (stream.total_out == size && ret == Z_STREAM_END) |
| 135 | break; |
| 136 | if (ret != Z_OK) { |
| 137 | error("inflate returned %d", ret); |
| 138 | FREE_AND_NULL(buf); |
| 139 | if (!recover) |
| 140 | exit(1); |
| 141 | has_errors = 1; |
| 142 | break; |
| 143 | } |
| 144 | stream.next_in = fill(1); |
| 145 | stream.avail_in = len; |
| 146 | if (dry_run) { |
| 147 | /* reuse the buffer in dry_run mode */ |
| 148 | stream.next_out = buf; |
| 149 | stream.avail_out = bufsize > size - stream.total_out ? |
| 150 | size - stream.total_out : |
| 151 | bufsize; |
| 152 | } |
| 153 | } |
| 154 | git_inflate_end(&stream); |
| 155 | if (dry_run) |
| 156 | FREE_AND_NULL(buf); |
| 157 | return buf; |
| 158 | } |
| 159 | |
| 160 | struct delta_info { |
| 161 | struct object_id base_oid; |
| 162 | unsigned nr; |
| 163 | off_t base_offset; |
| 164 | unsigned long size; |
| 165 | void *delta; |
| 166 | struct delta_info *next; |
| 167 | }; |
| 168 | |
| 169 | static struct delta_info *delta_list; |
| 170 | |
| 171 | static void add_delta_to_list(unsigned nr, const struct object_id *base_oid, |
| 172 | off_t base_offset, |
| 173 | void *delta, unsigned long size) |
| 174 | { |
| 175 | struct delta_info *info = xmalloc(sizeof(*info)); |
| 176 | |
| 177 | oidcpy(&info->base_oid, base_oid); |
| 178 | info->base_offset = base_offset; |
| 179 | info->size = size; |
| 180 | info->delta = delta; |
| 181 | info->nr = nr; |
| 182 | info->next = delta_list; |
| 183 | delta_list = info; |
| 184 | } |
| 185 | |
| 186 | struct obj_info { |
| 187 | off_t offset; |
| 188 | struct object_id oid; |
| 189 | struct object *obj; |
| 190 | }; |
| 191 | |
| 192 | /* Remember to update object flag allocation in object.h */ |
| 193 | #define FLAG_OPEN (1u<<20) |
| 194 | #define FLAG_WRITTEN (1u<<21) |
| 195 | |
| 196 | static struct obj_info *obj_list; |
| 197 | static unsigned nr_objects; |
| 198 | |
| 199 | /* |
| 200 | * Called only from check_object() after it verified this object |
| 201 | * is Ok. |
| 202 | */ |
| 203 | static void write_cached_object(struct object *obj, struct obj_buffer *obj_buf) |
| 204 | { |
| 205 | struct object_id oid; |
| 206 | |
| 207 | if (odb_write_object(the_repository->objects, obj_buf->buffer, obj_buf->size, |
| 208 | obj->type, &oid) < 0) |
| 209 | die("failed to write object %s", oid_to_hex(&obj->oid)); |
| 210 | obj->flags |= FLAG_WRITTEN; |
| 211 | } |
| 212 | |
| 213 | /* |
| 214 | * At the very end of the processing, write_rest() scans the objects |
| 215 | * that have reachability requirements and calls this function. |
| 216 | * Verify its reachability and validity recursively and write it out. |
| 217 | */ |
| 218 | static int check_object(struct object *obj, enum object_type type, |
| 219 | void *data UNUSED, |
| 220 | struct fsck_options *options UNUSED) |
| 221 | { |
| 222 | struct obj_buffer *obj_buf; |
| 223 | |
| 224 | if (!obj) |
| 225 | return 1; |
| 226 | |
| 227 | if (obj->flags & FLAG_WRITTEN) |
| 228 | return 0; |
| 229 | |
| 230 | if (type != OBJ_ANY && obj->type != type) |
| 231 | die("object type mismatch"); |
| 232 | |
| 233 | if (!(obj->flags & FLAG_OPEN)) { |
| 234 | unsigned long size; |
| 235 | int type = odb_read_object_info(the_repository->objects, &obj->oid, &size); |
| 236 | if (type != obj->type || type <= 0) |
| 237 | die("object of unexpected type"); |
| 238 | obj->flags |= FLAG_WRITTEN; |
| 239 | return 0; |
| 240 | } |
| 241 | |
| 242 | obj_buf = lookup_object_buffer(obj); |
| 243 | if (!obj_buf) |
| 244 | die("Whoops! Cannot find object '%s'", oid_to_hex(&obj->oid)); |
| 245 | if (fsck_object(obj, obj_buf->buffer, obj_buf->size, &fsck_options)) |
| 246 | die("fsck error in packed object"); |
| 247 | fsck_options.walk = check_object; |
| 248 | if (fsck_walk(obj, NULL, &fsck_options)) |
| 249 | die("Error on reachable objects of %s", oid_to_hex(&obj->oid)); |
| 250 | write_cached_object(obj, obj_buf); |
| 251 | return 0; |
| 252 | } |
| 253 | |
| 254 | static void write_rest(void) |
| 255 | { |
| 256 | unsigned i; |
| 257 | for (i = 0; i < nr_objects; i++) { |
| 258 | if (obj_list[i].obj) |
| 259 | check_object(obj_list[i].obj, OBJ_ANY, NULL, NULL); |
| 260 | } |
| 261 | } |
| 262 | |
| 263 | static void added_object(unsigned nr, enum object_type type, |
| 264 | void *data, unsigned long size); |
| 265 | |
| 266 | /* |
| 267 | * Write out nr-th object from the list, now we know the contents |
| 268 | * of it. Under --strict, this buffers structured objects in-core, |
| 269 | * to be checked at the end. |
| 270 | */ |
| 271 | static void write_object(unsigned nr, enum object_type type, |
| 272 | void *buf, unsigned long size) |
| 273 | { |
| 274 | if (!strict) { |
| 275 | if (odb_write_object(the_repository->objects, buf, size, type, |
| 276 | &obj_list[nr].oid) < 0) |
| 277 | die("failed to write object"); |
| 278 | added_object(nr, type, buf, size); |
| 279 | free(buf); |
| 280 | obj_list[nr].obj = NULL; |
| 281 | } else if (type == OBJ_BLOB) { |
| 282 | struct blob *blob; |
| 283 | if (odb_write_object(the_repository->objects, buf, size, type, |
| 284 | &obj_list[nr].oid) < 0) |
| 285 | die("failed to write object"); |
| 286 | added_object(nr, type, buf, size); |
| 287 | free(buf); |
| 288 | |
| 289 | blob = lookup_blob(the_repository, &obj_list[nr].oid); |
| 290 | if (blob) |
| 291 | blob->object.flags |= FLAG_WRITTEN; |
| 292 | else |
| 293 | die("invalid blob object"); |
| 294 | obj_list[nr].obj = NULL; |
| 295 | } else { |
| 296 | struct object *obj; |
| 297 | int eaten; |
| 298 | hash_object_file(the_hash_algo, buf, size, type, |
| 299 | &obj_list[nr].oid); |
| 300 | added_object(nr, type, buf, size); |
| 301 | obj = parse_object_buffer(the_repository, &obj_list[nr].oid, |
| 302 | type, size, buf, |
| 303 | &eaten); |
| 304 | if (!obj) |
| 305 | die("invalid %s", type_name(type)); |
| 306 | add_object_buffer(obj, buf, size); |
| 307 | obj->flags |= FLAG_OPEN; |
| 308 | obj_list[nr].obj = obj; |
| 309 | } |
| 310 | } |
| 311 | |
| 312 | static void resolve_delta(unsigned nr, enum object_type type, |
| 313 | void *base, unsigned long base_size, |
| 314 | void *delta, unsigned long delta_size) |
| 315 | { |
| 316 | void *result; |
| 317 | unsigned long result_size; |
| 318 | |
| 319 | result = patch_delta(base, base_size, |
| 320 | delta, delta_size, |
| 321 | &result_size); |
| 322 | if (!result) |
| 323 | die("failed to apply delta"); |
| 324 | free(delta); |
| 325 | write_object(nr, type, result, result_size); |
| 326 | } |
| 327 | |
| 328 | /* |
| 329 | * We now know the contents of an object (which is nr-th in the pack); |
| 330 | * resolve all the deltified objects that are based on it. |
| 331 | */ |
| 332 | static void added_object(unsigned nr, enum object_type type, |
| 333 | void *data, unsigned long size) |
| 334 | { |
| 335 | struct delta_info **p = &delta_list; |
| 336 | struct delta_info *info; |
| 337 | |
| 338 | while ((info = *p) != NULL) { |
| 339 | if (oideq(&info->base_oid, &obj_list[nr].oid) || |
| 340 | info->base_offset == obj_list[nr].offset) { |
| 341 | *p = info->next; |
| 342 | p = &delta_list; |
| 343 | resolve_delta(info->nr, type, data, size, |
| 344 | info->delta, info->size); |
| 345 | free(info); |
| 346 | continue; |
| 347 | } |
| 348 | p = &info->next; |
| 349 | } |
| 350 | } |
| 351 | |
| 352 | static void unpack_non_delta_entry(enum object_type type, unsigned long size, |
| 353 | unsigned nr) |
| 354 | { |
| 355 | void *buf = get_data(size); |
| 356 | |
| 357 | if (buf) |
| 358 | write_object(nr, type, buf, size); |
| 359 | } |
| 360 | |
| 361 | struct input_zstream_data { |
| 362 | git_zstream *zstream; |
| 363 | int status; |
| 364 | }; |
| 365 | |
| 366 | static ssize_t feed_input_zstream(struct odb_write_stream *in_stream, |
| 367 | unsigned char *buf, size_t buf_len) |
| 368 | { |
| 369 | struct input_zstream_data *data = in_stream->data; |
| 370 | git_zstream *zstream = data->zstream; |
| 371 | void *in = fill(1); |
| 372 | |
| 373 | if (in_stream->is_finished) |
| 374 | return 0; |
| 375 | |
| 376 | zstream->next_out = buf; |
| 377 | zstream->avail_out = buf_len; |
| 378 | zstream->next_in = in; |
| 379 | zstream->avail_in = len; |
| 380 | |
| 381 | data->status = git_inflate(zstream, 0); |
| 382 | |
| 383 | in_stream->is_finished = data->status != Z_OK; |
| 384 | use(len - zstream->avail_in); |
| 385 | return buf_len - zstream->avail_out; |
| 386 | } |
| 387 | |
| 388 | static void stream_blob(unsigned long size, unsigned nr) |
| 389 | { |
| 390 | git_zstream zstream = { 0 }; |
| 391 | struct input_zstream_data data = { 0 }; |
| 392 | struct odb_write_stream in_stream = { |
| 393 | .read = feed_input_zstream, |
| 394 | .data = &data, |
| 395 | }; |
| 396 | struct obj_info *info = &obj_list[nr]; |
| 397 | |
| 398 | data.zstream = &zstream; |
| 399 | git_inflate_init(&zstream); |
| 400 | |
| 401 | if (odb_write_object_stream(the_repository->objects, &in_stream, size, &info->oid)) |
| 402 | die(_("failed to write object in stream")); |
| 403 | |
| 404 | if (data.status != Z_STREAM_END) |
| 405 | die(_("inflate returned (%d)"), data.status); |
| 406 | git_inflate_end(&zstream); |
| 407 | |
| 408 | if (strict) { |
| 409 | struct blob *blob = lookup_blob(the_repository, &info->oid); |
| 410 | |
| 411 | if (!blob) |
| 412 | die(_("invalid blob object from stream")); |
| 413 | blob->object.flags |= FLAG_WRITTEN; |
| 414 | } |
| 415 | info->obj = NULL; |
| 416 | } |
| 417 | |
| 418 | static int resolve_against_held(unsigned nr, const struct object_id *base, |
| 419 | void *delta_data, unsigned long delta_size) |
| 420 | { |
| 421 | struct object *obj; |
| 422 | struct obj_buffer *obj_buffer; |
| 423 | obj = lookup_object(the_repository, base); |
| 424 | if (!obj) |
| 425 | return 0; |
| 426 | obj_buffer = lookup_object_buffer(obj); |
| 427 | if (!obj_buffer) |
| 428 | return 0; |
| 429 | resolve_delta(nr, obj->type, obj_buffer->buffer, |
| 430 | obj_buffer->size, delta_data, delta_size); |
| 431 | return 1; |
| 432 | } |
| 433 | |
| 434 | static void unpack_delta_entry(enum object_type type, unsigned long delta_size, |
| 435 | unsigned nr) |
| 436 | { |
| 437 | void *delta_data, *base; |
| 438 | unsigned long base_size; |
| 439 | struct object_id base_oid; |
| 440 | |
| 441 | if (type == OBJ_REF_DELTA) { |
| 442 | oidread(&base_oid, fill(the_hash_algo->rawsz), the_repository->hash_algo); |
| 443 | use(the_hash_algo->rawsz); |
| 444 | delta_data = get_data(delta_size); |
| 445 | if (!delta_data) |
| 446 | return; |
| 447 | if (odb_has_object(the_repository->objects, &base_oid, |
| 448 | ODB_HAS_OBJECT_RECHECK_PACKED | ODB_HAS_OBJECT_FETCH_PROMISOR)) |
| 449 | ; /* Ok we have this one */ |
| 450 | else if (resolve_against_held(nr, &base_oid, |
| 451 | delta_data, delta_size)) |
| 452 | return; /* we are done */ |
| 453 | else { |
| 454 | /* cannot resolve yet --- queue it */ |
| 455 | oidclr(&obj_list[nr].oid, the_repository->hash_algo); |
| 456 | add_delta_to_list(nr, &base_oid, 0, delta_data, delta_size); |
| 457 | return; |
| 458 | } |
| 459 | } else { |
| 460 | unsigned base_found = 0; |
| 461 | unsigned char *pack, c; |
| 462 | off_t base_offset; |
| 463 | unsigned lo, mid, hi; |
| 464 | |
| 465 | pack = fill(1); |
| 466 | c = *pack; |
| 467 | use(1); |
| 468 | base_offset = c & 127; |
| 469 | while (c & 128) { |
| 470 | base_offset += 1; |
| 471 | if (!base_offset || MSB(base_offset, 7)) |
| 472 | die("offset value overflow for delta base object"); |
| 473 | pack = fill(1); |
| 474 | c = *pack; |
| 475 | use(1); |
| 476 | base_offset = (base_offset << 7) + (c & 127); |
| 477 | } |
| 478 | base_offset = obj_list[nr].offset - base_offset; |
| 479 | if (base_offset <= 0 || base_offset >= obj_list[nr].offset) |
| 480 | die("offset value out of bound for delta base object"); |
| 481 | |
| 482 | delta_data = get_data(delta_size); |
| 483 | if (!delta_data) |
| 484 | return; |
| 485 | lo = 0; |
| 486 | hi = nr; |
| 487 | while (lo < hi) { |
| 488 | mid = lo + (hi - lo) / 2; |
| 489 | if (base_offset < obj_list[mid].offset) { |
| 490 | hi = mid; |
| 491 | } else if (base_offset > obj_list[mid].offset) { |
| 492 | lo = mid + 1; |
| 493 | } else { |
| 494 | oidcpy(&base_oid, &obj_list[mid].oid); |
| 495 | base_found = !is_null_oid(&base_oid); |
| 496 | break; |
| 497 | } |
| 498 | } |
| 499 | if (!base_found) { |
| 500 | /* |
| 501 | * The delta base object is itself a delta that |
| 502 | * has not been resolved yet. |
| 503 | */ |
| 504 | oidclr(&obj_list[nr].oid, the_repository->hash_algo); |
| 505 | add_delta_to_list(nr, null_oid(the_hash_algo), base_offset, |
| 506 | delta_data, delta_size); |
| 507 | return; |
| 508 | } |
| 509 | } |
| 510 | |
| 511 | if (resolve_against_held(nr, &base_oid, delta_data, delta_size)) |
| 512 | return; |
| 513 | |
| 514 | base = odb_read_object(the_repository->objects, &base_oid, |
| 515 | &type, &base_size); |
| 516 | if (!base) { |
| 517 | error("failed to read delta-pack base object %s", |
| 518 | oid_to_hex(&base_oid)); |
| 519 | if (!recover) |
| 520 | exit(1); |
| 521 | has_errors = 1; |
| 522 | return; |
| 523 | } |
| 524 | resolve_delta(nr, type, base, base_size, delta_data, delta_size); |
| 525 | free(base); |
| 526 | } |
| 527 | |
| 528 | static void unpack_one(unsigned nr) |
| 529 | { |
| 530 | unsigned shift; |
| 531 | unsigned char *pack; |
| 532 | size_t size, c; |
| 533 | enum object_type type; |
| 534 | |
| 535 | obj_list[nr].offset = consumed_bytes; |
| 536 | |
| 537 | pack = fill(1); |
| 538 | c = *pack; |
| 539 | use(1); |
| 540 | type = (c >> 4) & 7; |
| 541 | size = (c & 15); |
| 542 | shift = 4; |
| 543 | while (c & 0x80) { |
| 544 | if ((bitsizeof(size_t) - 7) < shift) |
| 545 | die(_("object size too large for this platform")); |
| 546 | pack = fill(1); |
| 547 | c = *pack; |
| 548 | use(1); |
| 549 | size += (c & 0x7f) << shift; |
| 550 | shift += 7; |
| 551 | } |
| 552 | |
| 553 | switch (type) { |
| 554 | case OBJ_BLOB: |
| 555 | if (!dry_run && |
| 556 | size > repo_settings_get_big_file_threshold(the_repository)) { |
| 557 | stream_blob(size, nr); |
| 558 | return; |
| 559 | } |
| 560 | /* fallthrough */ |
| 561 | case OBJ_COMMIT: |
| 562 | case OBJ_TREE: |
| 563 | case OBJ_TAG: |
| 564 | unpack_non_delta_entry(type, size, nr); |
| 565 | return; |
| 566 | case OBJ_REF_DELTA: |
| 567 | case OBJ_OFS_DELTA: |
| 568 | unpack_delta_entry(type, size, nr); |
| 569 | return; |
| 570 | default: |
| 571 | error("bad object type %d", type); |
| 572 | has_errors = 1; |
| 573 | if (recover) |
| 574 | return; |
| 575 | exit(1); |
| 576 | } |
| 577 | } |
| 578 | |
| 579 | static void unpack_all(void) |
| 580 | { |
| 581 | int i; |
| 582 | unsigned char *hdr = fill(sizeof(struct pack_header)); |
| 583 | struct odb_transaction *transaction; |
| 584 | |
| 585 | if (get_be32(hdr) != PACK_SIGNATURE) |
| 586 | die("bad pack file"); |
| 587 | hdr += 4; |
| 588 | if (!pack_version_ok_native(get_be32(hdr))) |
| 589 | die("unknown pack file version %"PRIu32, |
| 590 | get_be32(hdr)); |
| 591 | hdr += 4; |
| 592 | nr_objects = get_be32(hdr); |
| 593 | use(sizeof(struct pack_header)); |
| 594 | |
| 595 | if (!quiet) |
| 596 | progress = start_progress(the_repository, |
| 597 | _("Unpacking objects"), nr_objects); |
| 598 | CALLOC_ARRAY(obj_list, nr_objects); |
| 599 | transaction = odb_transaction_begin(the_repository->objects); |
| 600 | for (i = 0; i < nr_objects; i++) { |
| 601 | unpack_one(i); |
| 602 | display_progress(progress, i + 1); |
| 603 | } |
| 604 | odb_transaction_commit(transaction); |
| 605 | stop_progress(&progress); |
| 606 | |
| 607 | if (delta_list) |
| 608 | die("unresolved deltas left after unpacking"); |
| 609 | } |
| 610 | |
| 611 | int cmd_unpack_objects(int argc, |
| 612 | const char **argv, |
| 613 | const char *prefix UNUSED, |
| 614 | struct repository *repo) |
| 615 | { |
| 616 | int i; |
| 617 | struct object_id oid; |
| 618 | struct git_hash_ctx tmp_ctx; |
| 619 | |
| 620 | disable_replace_refs(); |
| 621 | |
| 622 | repo_config(the_repository, git_default_config, NULL); |
| 623 | |
| 624 | quiet = !isatty(2); |
| 625 | |
| 626 | show_usage_if_asked(argc, argv, unpack_usage); |
| 627 | |
| 628 | fsck_options_init(&fsck_options, repo, FSCK_OPTIONS_STRICT); |
| 629 | |
| 630 | for (i = 1 ; i < argc; i++) { |
| 631 | const char *arg = argv[i]; |
| 632 | |
| 633 | if (*arg == '-') { |
| 634 | if (!strcmp(arg, "-n")) { |
| 635 | dry_run = 1; |
| 636 | continue; |
| 637 | } |
| 638 | if (!strcmp(arg, "-q")) { |
| 639 | quiet = 1; |
| 640 | continue; |
| 641 | } |
| 642 | if (!strcmp(arg, "-r")) { |
| 643 | recover = 1; |
| 644 | continue; |
| 645 | } |
| 646 | if (!strcmp(arg, "--strict")) { |
| 647 | strict = 1; |
| 648 | continue; |
| 649 | } |
| 650 | if (skip_prefix(arg, "--strict=", &arg)) { |
| 651 | strict = 1; |
| 652 | fsck_set_msg_types(&fsck_options, arg); |
| 653 | continue; |
| 654 | } |
| 655 | if (skip_prefix(arg, "--pack_header=", &arg)) { |
| 656 | if (parse_pack_header_option(arg, |
| 657 | buffer, &len) < 0) |
| 658 | die(_("bad --pack_header: %s"), arg); |
| 659 | continue; |
| 660 | } |
| 661 | if (skip_prefix(arg, "--max-input-size=", &arg)) { |
| 662 | max_input_size = strtoumax(arg, NULL, 10); |
| 663 | continue; |
| 664 | } |
| 665 | usage(unpack_usage); |
| 666 | } |
| 667 | |
| 668 | /* We don't take any non-flag arguments now.. Maybe some day */ |
| 669 | usage(unpack_usage); |
| 670 | } |
| 671 | the_hash_algo->init_fn(&ctx); |
| 672 | unpack_all(); |
| 673 | git_hash_update(&ctx, buffer, offset); |
| 674 | the_hash_algo->init_fn(&tmp_ctx); |
| 675 | git_hash_clone(&tmp_ctx, &ctx); |
| 676 | git_hash_final_oid(&oid, &tmp_ctx); |
| 677 | if (strict) { |
| 678 | write_rest(); |
| 679 | if (fsck_finish(&fsck_options)) |
| 680 | die(_("fsck error in pack objects")); |
| 681 | } |
| 682 | if (!hasheq(fill(the_hash_algo->rawsz), oid.hash, |
| 683 | the_repository->hash_algo)) |
| 684 | die("final sha1 did not match"); |
| 685 | use(the_hash_algo->rawsz); |
| 686 | |
| 687 | /* Write the last part of the buffer to stdout */ |
| 688 | write_in_full(1, buffer + offset, len); |
| 689 | |
| 690 | /* All done */ |
| 691 | return has_errors; |
| 692 | } |