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Commit | Line | Data |
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8b0eca7c DH |
1 | #include "cache.h" |
2 | #include "pack.h" | |
aa7e44bf | 3 | #include "csum-file.h" |
33add2ad | 4 | #include "remote.h" |
aa7e44bf | 5 | |
ebcfb379 JH |
6 | void reset_pack_idx_option(struct pack_idx_option *opts) |
7 | { | |
8 | memset(opts, 0, sizeof(*opts)); | |
9 | opts->version = 2; | |
10 | opts->off32_limit = 0x7fffffff; | |
11 | } | |
aa7e44bf GB |
12 | |
13 | static int sha1_compare(const void *_a, const void *_b) | |
14 | { | |
15 | struct pack_idx_entry *a = *(struct pack_idx_entry **)_a; | |
16 | struct pack_idx_entry *b = *(struct pack_idx_entry **)_b; | |
e6a492b7 | 17 | return oidcmp(&a->oid, &b->oid); |
aa7e44bf GB |
18 | } |
19 | ||
3c9fc074 JH |
20 | static int cmp_uint32(const void *a_, const void *b_) |
21 | { | |
22 | uint32_t a = *((uint32_t *)a_); | |
23 | uint32_t b = *((uint32_t *)b_); | |
24 | ||
25 | return (a < b) ? -1 : (a != b); | |
26 | } | |
27 | ||
fb956c1f JH |
28 | static int need_large_offset(off_t offset, const struct pack_idx_option *opts) |
29 | { | |
3c9fc074 JH |
30 | uint32_t ofsval; |
31 | ||
32 | if ((offset >> 31) || (opts->off32_limit < offset)) | |
33 | return 1; | |
34 | if (!opts->anomaly_nr) | |
35 | return 0; | |
36 | ofsval = offset; | |
37 | return !!bsearch(&ofsval, opts->anomaly, opts->anomaly_nr, | |
38 | sizeof(ofsval), cmp_uint32); | |
fb956c1f JH |
39 | } |
40 | ||
aa7e44bf | 41 | /* |
e2bfa50a JB |
42 | * The *sha1 contains the pack content SHA1 hash. |
43 | * The objects array passed in will be sorted by SHA1 on exit. | |
aa7e44bf | 44 | */ |
3bb72562 | 45 | const char *write_idx_file(const char *index_name, struct pack_idx_entry **objects, |
ebcfb379 | 46 | int nr_objects, const struct pack_idx_option *opts, |
1190a1ac | 47 | const unsigned char *sha1) |
aa7e44bf | 48 | { |
98a3beab | 49 | struct hashfile *f; |
aa7e44bf GB |
50 | struct pack_idx_entry **sorted_by_sha, **list, **last; |
51 | off_t last_obj_offset = 0; | |
aa7e44bf | 52 | int i, fd; |
aa7e44bf GB |
53 | uint32_t index_version; |
54 | ||
55 | if (nr_objects) { | |
56 | sorted_by_sha = objects; | |
57 | list = sorted_by_sha; | |
58 | last = sorted_by_sha + nr_objects; | |
59 | for (i = 0; i < nr_objects; ++i) { | |
60 | if (objects[i]->offset > last_obj_offset) | |
61 | last_obj_offset = objects[i]->offset; | |
62 | } | |
9ed0d8d6 | 63 | QSORT(sorted_by_sha, nr_objects, sha1_compare); |
aa7e44bf GB |
64 | } |
65 | else | |
66 | sorted_by_sha = list = last = NULL; | |
67 | ||
e337a04d JH |
68 | if (opts->flags & WRITE_IDX_VERIFY) { |
69 | assert(index_name); | |
98a3beab | 70 | f = hashfd_check(index_name); |
aa7e44bf | 71 | } else { |
e337a04d | 72 | if (!index_name) { |
594fa999 JK |
73 | struct strbuf tmp_file = STRBUF_INIT; |
74 | fd = odb_mkstemp(&tmp_file, "pack/tmp_idx_XXXXXX"); | |
75 | index_name = strbuf_detach(&tmp_file, NULL); | |
e337a04d JH |
76 | } else { |
77 | unlink(index_name); | |
66e905b7 | 78 | fd = xopen(index_name, O_CREAT|O_EXCL|O_WRONLY, 0600); |
e337a04d | 79 | } |
98a3beab | 80 | f = hashfd(fd, index_name); |
aa7e44bf | 81 | } |
aa7e44bf GB |
82 | |
83 | /* if last object's offset is >= 2^31 we should use index V2 */ | |
fb956c1f | 84 | index_version = need_large_offset(last_obj_offset, opts) ? 2 : opts->version; |
aa7e44bf GB |
85 | |
86 | /* index versions 2 and above need a header */ | |
87 | if (index_version >= 2) { | |
88 | struct pack_idx_header hdr; | |
89 | hdr.idx_signature = htonl(PACK_IDX_SIGNATURE); | |
90 | hdr.idx_version = htonl(index_version); | |
98a3beab | 91 | hashwrite(f, &hdr, sizeof(hdr)); |
aa7e44bf GB |
92 | } |
93 | ||
94 | /* | |
95 | * Write the first-level table (the list is sorted, | |
96 | * but we use a 256-entry lookup to be able to avoid | |
97 | * having to do eight extra binary search iterations). | |
98 | */ | |
99 | for (i = 0; i < 256; i++) { | |
100 | struct pack_idx_entry **next = list; | |
101 | while (next < last) { | |
102 | struct pack_idx_entry *obj = *next; | |
e6a492b7 | 103 | if (obj->oid.hash[0] != i) |
aa7e44bf GB |
104 | break; |
105 | next++; | |
106 | } | |
06d43fad | 107 | hashwrite_be32(f, next - sorted_by_sha); |
aa7e44bf GB |
108 | list = next; |
109 | } | |
aa7e44bf | 110 | |
aa7e44bf GB |
111 | /* |
112 | * Write the actual SHA1 entries.. | |
113 | */ | |
114 | list = sorted_by_sha; | |
115 | for (i = 0; i < nr_objects; i++) { | |
116 | struct pack_idx_entry *obj = *list++; | |
389cf68c RS |
117 | if (index_version < 2) |
118 | hashwrite_be32(f, obj->offset); | |
98a3beab | 119 | hashwrite(f, obj->oid.hash, the_hash_algo->rawsz); |
68be2fea | 120 | if ((opts->flags & WRITE_IDX_STRICT) && |
4a7e27e9 | 121 | (i && oideq(&list[-2]->oid, &obj->oid))) |
68be2fea | 122 | die("The same object %s appears twice in the pack", |
e6a492b7 | 123 | oid_to_hex(&obj->oid)); |
aa7e44bf GB |
124 | } |
125 | ||
126 | if (index_version >= 2) { | |
127 | unsigned int nr_large_offset = 0; | |
128 | ||
129 | /* write the crc32 table */ | |
130 | list = sorted_by_sha; | |
131 | for (i = 0; i < nr_objects; i++) { | |
132 | struct pack_idx_entry *obj = *list++; | |
389cf68c | 133 | hashwrite_be32(f, obj->crc32); |
aa7e44bf GB |
134 | } |
135 | ||
136 | /* write the 32-bit offset table */ | |
137 | list = sorted_by_sha; | |
138 | for (i = 0; i < nr_objects; i++) { | |
139 | struct pack_idx_entry *obj = *list++; | |
fb956c1f JH |
140 | uint32_t offset; |
141 | ||
142 | offset = (need_large_offset(obj->offset, opts) | |
143 | ? (0x80000000 | nr_large_offset++) | |
144 | : obj->offset); | |
389cf68c | 145 | hashwrite_be32(f, offset); |
aa7e44bf GB |
146 | } |
147 | ||
148 | /* write the large offset table */ | |
149 | list = sorted_by_sha; | |
150 | while (nr_large_offset) { | |
151 | struct pack_idx_entry *obj = *list++; | |
152 | uint64_t offset = obj->offset; | |
fb956c1f JH |
153 | |
154 | if (!need_large_offset(offset, opts)) | |
155 | continue; | |
970909c2 | 156 | hashwrite_be64(f, offset); |
fb956c1f | 157 | nr_large_offset--; |
aa7e44bf GB |
158 | } |
159 | } | |
160 | ||
98a3beab | 161 | hashwrite(f, sha1, the_hash_algo->rawsz); |
020406ea NS |
162 | finalize_hashfile(f, NULL, FSYNC_COMPONENT_PACK_METADATA, |
163 | CSUM_HASH_IN_STREAM | CSUM_CLOSE | | |
164 | ((opts->flags & WRITE_IDX_VERIFY) ? 0 : CSUM_FSYNC)); | |
aa7e44bf GB |
165 | return index_name; |
166 | } | |
8b0eca7c | 167 | |
8ef50d99 TB |
168 | static int pack_order_cmp(const void *va, const void *vb, void *ctx) |
169 | { | |
170 | struct pack_idx_entry **objects = ctx; | |
171 | ||
172 | off_t oa = objects[*(uint32_t*)va]->offset; | |
173 | off_t ob = objects[*(uint32_t*)vb]->offset; | |
174 | ||
175 | if (oa < ob) | |
176 | return -1; | |
177 | if (oa > ob) | |
178 | return 1; | |
179 | return 0; | |
180 | } | |
181 | ||
182 | static void write_rev_header(struct hashfile *f) | |
183 | { | |
184 | uint32_t oid_version; | |
185 | switch (hash_algo_by_ptr(the_hash_algo)) { | |
186 | case GIT_HASH_SHA1: | |
187 | oid_version = 1; | |
188 | break; | |
189 | case GIT_HASH_SHA256: | |
190 | oid_version = 2; | |
191 | break; | |
192 | default: | |
193 | die("write_rev_header: unknown hash version"); | |
194 | } | |
195 | ||
196 | hashwrite_be32(f, RIDX_SIGNATURE); | |
197 | hashwrite_be32(f, RIDX_VERSION); | |
198 | hashwrite_be32(f, oid_version); | |
199 | } | |
200 | ||
201 | static void write_rev_index_positions(struct hashfile *f, | |
a587b5a7 | 202 | uint32_t *pack_order, |
8ef50d99 TB |
203 | uint32_t nr_objects) |
204 | { | |
8ef50d99 | 205 | uint32_t i; |
8ef50d99 TB |
206 | for (i = 0; i < nr_objects; i++) |
207 | hashwrite_be32(f, pack_order[i]); | |
8ef50d99 TB |
208 | } |
209 | ||
210 | static void write_rev_trailer(struct hashfile *f, const unsigned char *hash) | |
211 | { | |
212 | hashwrite(f, hash, the_hash_algo->rawsz); | |
213 | } | |
214 | ||
215 | const char *write_rev_file(const char *rev_name, | |
216 | struct pack_idx_entry **objects, | |
217 | uint32_t nr_objects, | |
218 | const unsigned char *hash, | |
219 | unsigned flags) | |
a587b5a7 TB |
220 | { |
221 | uint32_t *pack_order; | |
222 | uint32_t i; | |
223 | const char *ret; | |
224 | ||
8fe8bae9 ÆAB |
225 | if (!(flags & WRITE_REV) && !(flags & WRITE_REV_VERIFY)) |
226 | return NULL; | |
227 | ||
a587b5a7 TB |
228 | ALLOC_ARRAY(pack_order, nr_objects); |
229 | for (i = 0; i < nr_objects; i++) | |
230 | pack_order[i] = i; | |
231 | QSORT_S(pack_order, nr_objects, pack_order_cmp, objects); | |
232 | ||
233 | ret = write_rev_file_order(rev_name, pack_order, nr_objects, hash, | |
234 | flags); | |
235 | ||
236 | free(pack_order); | |
237 | ||
238 | return ret; | |
239 | } | |
240 | ||
241 | const char *write_rev_file_order(const char *rev_name, | |
242 | uint32_t *pack_order, | |
243 | uint32_t nr_objects, | |
244 | const unsigned char *hash, | |
245 | unsigned flags) | |
8ef50d99 TB |
246 | { |
247 | struct hashfile *f; | |
248 | int fd; | |
249 | ||
250 | if ((flags & WRITE_REV) && (flags & WRITE_REV_VERIFY)) | |
251 | die(_("cannot both write and verify reverse index")); | |
252 | ||
253 | if (flags & WRITE_REV) { | |
254 | if (!rev_name) { | |
255 | struct strbuf tmp_file = STRBUF_INIT; | |
256 | fd = odb_mkstemp(&tmp_file, "pack/tmp_rev_XXXXXX"); | |
257 | rev_name = strbuf_detach(&tmp_file, NULL); | |
258 | } else { | |
259 | unlink(rev_name); | |
66e905b7 | 260 | fd = xopen(rev_name, O_CREAT|O_EXCL|O_WRONLY, 0600); |
8ef50d99 TB |
261 | } |
262 | f = hashfd(fd, rev_name); | |
263 | } else if (flags & WRITE_REV_VERIFY) { | |
264 | struct stat statbuf; | |
265 | if (stat(rev_name, &statbuf)) { | |
266 | if (errno == ENOENT) { | |
267 | /* .rev files are optional */ | |
268 | return NULL; | |
269 | } else | |
270 | die_errno(_("could not stat: %s"), rev_name); | |
271 | } | |
272 | f = hashfd_check(rev_name); | |
273 | } else | |
274 | return NULL; | |
275 | ||
276 | write_rev_header(f); | |
277 | ||
a587b5a7 | 278 | write_rev_index_positions(f, pack_order, nr_objects); |
8ef50d99 TB |
279 | write_rev_trailer(f, hash); |
280 | ||
281 | if (rev_name && adjust_shared_perm(rev_name) < 0) | |
282 | die(_("failed to make %s readable"), rev_name); | |
283 | ||
020406ea NS |
284 | finalize_hashfile(f, NULL, FSYNC_COMPONENT_PACK_METADATA, |
285 | CSUM_HASH_IN_STREAM | CSUM_CLOSE | | |
286 | ((flags & WRITE_IDX_VERIFY) ? 0 : CSUM_FSYNC)); | |
8ef50d99 TB |
287 | |
288 | return rev_name; | |
289 | } | |
290 | ||
98a3beab | 291 | off_t write_pack_header(struct hashfile *f, uint32_t nr_entries) |
c0ad4657 JH |
292 | { |
293 | struct pack_header hdr; | |
294 | ||
295 | hdr.hdr_signature = htonl(PACK_SIGNATURE); | |
296 | hdr.hdr_version = htonl(PACK_VERSION); | |
297 | hdr.hdr_entries = htonl(nr_entries); | |
98a3beab | 298 | hashwrite(f, &hdr, sizeof(hdr)); |
c0ad4657 JH |
299 | return sizeof(hdr); |
300 | } | |
301 | ||
abeb40e5 NP |
302 | /* |
303 | * Update pack header with object_count and compute new SHA1 for pack data | |
304 | * associated to pack_fd, and write that SHA1 at the end. That new SHA1 | |
305 | * is also returned in new_pack_sha1. | |
306 | * | |
307 | * If partial_pack_sha1 is non null, then the SHA1 of the existing pack | |
308 | * (without the header update) is computed and validated against the | |
309 | * one provided in partial_pack_sha1. The validation is performed at | |
310 | * partial_pack_offset bytes in the pack file. The SHA1 of the remaining | |
311 | * data (i.e. from partial_pack_offset to the end) is then computed and | |
312 | * returned in partial_pack_sha1. | |
313 | * | |
314 | * Note that new_pack_sha1 is updated last, so both new_pack_sha1 and | |
315 | * partial_pack_sha1 can refer to the same buffer if the caller is not | |
316 | * interested in the resulting SHA1 of pack data above partial_pack_offset. | |
317 | */ | |
8b0eca7c | 318 | void fixup_pack_header_footer(int pack_fd, |
81c58cd4 | 319 | unsigned char *new_pack_hash, |
8b0eca7c | 320 | const char *pack_name, |
abeb40e5 | 321 | uint32_t object_count, |
81c58cd4 | 322 | unsigned char *partial_pack_hash, |
abeb40e5 | 323 | off_t partial_pack_offset) |
8b0eca7c | 324 | { |
d35825da | 325 | int aligned_sz, buf_sz = 8 * 1024; |
81c58cd4 | 326 | git_hash_ctx old_hash_ctx, new_hash_ctx; |
8b0eca7c DH |
327 | struct pack_header hdr; |
328 | char *buf; | |
90dca671 | 329 | ssize_t read_result; |
8b0eca7c | 330 | |
81c58cd4 | 331 | the_hash_algo->init_fn(&old_hash_ctx); |
332 | the_hash_algo->init_fn(&new_hash_ctx); | |
abeb40e5 | 333 | |
8b0eca7c | 334 | if (lseek(pack_fd, 0, SEEK_SET) != 0) |
d824cbba | 335 | die_errno("Failed seeking to start of '%s'", pack_name); |
90dca671 JK |
336 | read_result = read_in_full(pack_fd, &hdr, sizeof(hdr)); |
337 | if (read_result < 0) | |
d824cbba | 338 | die_errno("Unable to reread header of '%s'", pack_name); |
90dca671 JK |
339 | else if (read_result != sizeof(hdr)) |
340 | die_errno("Unexpected short read for header of '%s'", | |
341 | pack_name); | |
8b0eca7c | 342 | if (lseek(pack_fd, 0, SEEK_SET) != 0) |
d824cbba | 343 | die_errno("Failed seeking to start of '%s'", pack_name); |
81c58cd4 | 344 | the_hash_algo->update_fn(&old_hash_ctx, &hdr, sizeof(hdr)); |
8b0eca7c | 345 | hdr.hdr_entries = htonl(object_count); |
81c58cd4 | 346 | the_hash_algo->update_fn(&new_hash_ctx, &hdr, sizeof(hdr)); |
8b0eca7c | 347 | write_or_die(pack_fd, &hdr, sizeof(hdr)); |
abeb40e5 | 348 | partial_pack_offset -= sizeof(hdr); |
8b0eca7c DH |
349 | |
350 | buf = xmalloc(buf_sz); | |
d35825da | 351 | aligned_sz = buf_sz - sizeof(hdr); |
8b0eca7c | 352 | for (;;) { |
abeb40e5 | 353 | ssize_t m, n; |
81c58cd4 | 354 | m = (partial_pack_hash && partial_pack_offset < aligned_sz) ? |
d35825da | 355 | partial_pack_offset : aligned_sz; |
abeb40e5 | 356 | n = xread(pack_fd, buf, m); |
8b0eca7c DH |
357 | if (!n) |
358 | break; | |
359 | if (n < 0) | |
d824cbba | 360 | die_errno("Failed to checksum '%s'", pack_name); |
81c58cd4 | 361 | the_hash_algo->update_fn(&new_hash_ctx, buf, n); |
abeb40e5 | 362 | |
d35825da NP |
363 | aligned_sz -= n; |
364 | if (!aligned_sz) | |
365 | aligned_sz = buf_sz; | |
366 | ||
81c58cd4 | 367 | if (!partial_pack_hash) |
abeb40e5 NP |
368 | continue; |
369 | ||
81c58cd4 | 370 | the_hash_algo->update_fn(&old_hash_ctx, buf, n); |
abeb40e5 NP |
371 | partial_pack_offset -= n; |
372 | if (partial_pack_offset == 0) { | |
81c58cd4 | 373 | unsigned char hash[GIT_MAX_RAWSZ]; |
374 | the_hash_algo->final_fn(hash, &old_hash_ctx); | |
67947c34 | 375 | if (!hasheq(hash, partial_pack_hash)) |
abeb40e5 NP |
376 | die("Unexpected checksum for %s " |
377 | "(disk corruption?)", pack_name); | |
378 | /* | |
379 | * Now let's compute the SHA1 of the remainder of the | |
380 | * pack, which also means making partial_pack_offset | |
381 | * big enough not to matter anymore. | |
382 | */ | |
81c58cd4 | 383 | the_hash_algo->init_fn(&old_hash_ctx); |
abeb40e5 NP |
384 | partial_pack_offset = ~partial_pack_offset; |
385 | partial_pack_offset -= MSB(partial_pack_offset, 1); | |
386 | } | |
8b0eca7c DH |
387 | } |
388 | free(buf); | |
389 | ||
81c58cd4 | 390 | if (partial_pack_hash) |
391 | the_hash_algo->final_fn(partial_pack_hash, &old_hash_ctx); | |
392 | the_hash_algo->final_fn(new_pack_hash, &new_hash_ctx); | |
393 | write_or_die(pack_fd, new_pack_hash, the_hash_algo->rawsz); | |
020406ea | 394 | fsync_component_or_die(FSYNC_COMPONENT_PACK, pack_fd, pack_name); |
8b0eca7c | 395 | } |
106764e6 | 396 | |
5476e1ef | 397 | char *index_pack_lockfile(int ip_out, int *is_well_formed) |
106764e6 | 398 | { |
81c58cd4 | 399 | char packname[GIT_MAX_HEXSZ + 6]; |
400 | const int len = the_hash_algo->hexsz + 6; | |
106764e6 SP |
401 | |
402 | /* | |
6e180cdc | 403 | * The first thing we expect from index-pack's output |
106764e6 SP |
404 | * is "pack\t%40s\n" or "keep\t%40s\n" (46 bytes) where |
405 | * %40s is the newly created pack SHA1 name. In the "keep" | |
406 | * case, we need it to remove the corresponding .keep file | |
407 | * later on. If we don't get that then tough luck with it. | |
408 | */ | |
81c58cd4 | 409 | if (read_in_full(ip_out, packname, len) == len && packname[len-1] == '\n') { |
d7731444 | 410 | const char *name; |
5476e1ef JT |
411 | |
412 | if (is_well_formed) | |
413 | *is_well_formed = 1; | |
81c58cd4 | 414 | packname[len-1] = 0; |
d7731444 RS |
415 | if (skip_prefix(packname, "keep\t", &name)) |
416 | return xstrfmt("%s/pack/pack-%s.keep", | |
417 | get_object_directory(), name); | |
5476e1ef | 418 | return NULL; |
106764e6 | 419 | } |
5476e1ef JT |
420 | if (is_well_formed) |
421 | *is_well_formed = 0; | |
106764e6 SP |
422 | return NULL; |
423 | } | |
f965c525 NP |
424 | |
425 | /* | |
426 | * The per-object header is a pretty dense thing, which is | |
427 | * - first byte: low four bits are "size", then three bits of "type", | |
428 | * and the high bit is "size continues". | |
429 | * - each byte afterwards: low seven bits are size continuation, | |
430 | * with the high bit being "size continues" | |
431 | */ | |
7202a6fa JK |
432 | int encode_in_pack_object_header(unsigned char *hdr, int hdr_len, |
433 | enum object_type type, uintmax_t size) | |
f965c525 NP |
434 | { |
435 | int n = 1; | |
436 | unsigned char c; | |
437 | ||
438 | if (type < OBJ_COMMIT || type > OBJ_REF_DELTA) | |
439 | die("bad type %d", type); | |
440 | ||
441 | c = (type << 4) | (size & 15); | |
442 | size >>= 4; | |
443 | while (size) { | |
7202a6fa JK |
444 | if (n == hdr_len) |
445 | die("object size is too enormous to format"); | |
f965c525 NP |
446 | *hdr++ = c | 0x80; |
447 | c = size & 0x7f; | |
448 | size >>= 7; | |
449 | n++; | |
450 | } | |
451 | *hdr = c; | |
452 | return n; | |
453 | } | |
cdf9db3c | 454 | |
98a3beab | 455 | struct hashfile *create_tmp_packfile(char **pack_tmp_name) |
cdf9db3c | 456 | { |
594fa999 | 457 | struct strbuf tmpname = STRBUF_INIT; |
cdf9db3c JH |
458 | int fd; |
459 | ||
594fa999 JK |
460 | fd = odb_mkstemp(&tmpname, "pack/tmp_pack_XXXXXX"); |
461 | *pack_tmp_name = strbuf_detach(&tmpname, NULL); | |
98a3beab | 462 | return hashfd(fd, *pack_tmp_name); |
cdf9db3c | 463 | } |
0e990530 | 464 | |
66833f0e ÆAB |
465 | static void rename_tmp_packfile(struct strbuf *name_prefix, const char *source, |
466 | const char *ext) | |
467 | { | |
468 | size_t name_prefix_len = name_prefix->len; | |
469 | ||
470 | strbuf_addstr(name_prefix, ext); | |
471 | if (rename(source, name_prefix->buf)) | |
472 | die_errno("unable to rename temporary file to '%s'", | |
473 | name_prefix->buf); | |
474 | strbuf_setlen(name_prefix, name_prefix_len); | |
475 | } | |
476 | ||
2ec02dd5 ÆAB |
477 | void rename_tmp_packfile_idx(struct strbuf *name_buffer, |
478 | char **idx_tmp_name) | |
479 | { | |
480 | rename_tmp_packfile(name_buffer, *idx_tmp_name, "idx"); | |
481 | } | |
482 | ||
483 | void stage_tmp_packfiles(struct strbuf *name_buffer, | |
0e990530 JH |
484 | const char *pack_tmp_name, |
485 | struct pack_idx_entry **written_list, | |
486 | uint32_t nr_written, | |
487 | struct pack_idx_option *pack_idx_opts, | |
2ec02dd5 ÆAB |
488 | unsigned char hash[], |
489 | char **idx_tmp_name) | |
0e990530 | 490 | { |
2ec02dd5 | 491 | const char *rev_tmp_name = NULL; |
0e990530 JH |
492 | |
493 | if (adjust_shared_perm(pack_tmp_name)) | |
494 | die_errno("unable to make temporary pack file readable"); | |
495 | ||
2ec02dd5 ÆAB |
496 | *idx_tmp_name = (char *)write_idx_file(NULL, written_list, nr_written, |
497 | pack_idx_opts, hash); | |
498 | if (adjust_shared_perm(*idx_tmp_name)) | |
0e990530 JH |
499 | die_errno("unable to make temporary index file readable"); |
500 | ||
8ef50d99 TB |
501 | rev_tmp_name = write_rev_file(NULL, written_list, nr_written, hash, |
502 | pack_idx_opts->flags); | |
503 | ||
66833f0e | 504 | rename_tmp_packfile(name_buffer, pack_tmp_name, "pack"); |
66833f0e ÆAB |
505 | if (rev_tmp_name) |
506 | rename_tmp_packfile(name_buffer, rev_tmp_name, "rev"); | |
0e990530 | 507 | } |
33add2ad CC |
508 | |
509 | void write_promisor_file(const char *promisor_name, struct ref **sought, int nr_sought) | |
510 | { | |
7c99bc23 | 511 | int i, err; |
33add2ad CC |
512 | FILE *output = xfopen(promisor_name, "w"); |
513 | ||
514 | for (i = 0; i < nr_sought; i++) | |
515 | fprintf(output, "%s %s\n", oid_to_hex(&sought[i]->old_oid), | |
516 | sought[i]->name); | |
7c99bc23 CC |
517 | |
518 | err = ferror(output); | |
519 | err |= fclose(output); | |
520 | if (err) | |
521 | die(_("could not write '%s' promisor file"), promisor_name); | |
33add2ad | 522 | } |