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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); | |
78 | fd = open(index_name, O_CREAT|O_EXCL|O_WRONLY, 0600); | |
892e723a JK |
79 | if (fd < 0) |
80 | die_errno("unable to create '%s'", index_name); | |
e337a04d | 81 | } |
98a3beab | 82 | f = hashfd(fd, index_name); |
aa7e44bf | 83 | } |
aa7e44bf GB |
84 | |
85 | /* if last object's offset is >= 2^31 we should use index V2 */ | |
fb956c1f | 86 | index_version = need_large_offset(last_obj_offset, opts) ? 2 : opts->version; |
aa7e44bf GB |
87 | |
88 | /* index versions 2 and above need a header */ | |
89 | if (index_version >= 2) { | |
90 | struct pack_idx_header hdr; | |
91 | hdr.idx_signature = htonl(PACK_IDX_SIGNATURE); | |
92 | hdr.idx_version = htonl(index_version); | |
98a3beab | 93 | hashwrite(f, &hdr, sizeof(hdr)); |
aa7e44bf GB |
94 | } |
95 | ||
96 | /* | |
97 | * Write the first-level table (the list is sorted, | |
98 | * but we use a 256-entry lookup to be able to avoid | |
99 | * having to do eight extra binary search iterations). | |
100 | */ | |
101 | for (i = 0; i < 256; i++) { | |
102 | struct pack_idx_entry **next = list; | |
103 | while (next < last) { | |
104 | struct pack_idx_entry *obj = *next; | |
e6a492b7 | 105 | if (obj->oid.hash[0] != i) |
aa7e44bf GB |
106 | break; |
107 | next++; | |
108 | } | |
06d43fad | 109 | hashwrite_be32(f, next - sorted_by_sha); |
aa7e44bf GB |
110 | list = next; |
111 | } | |
aa7e44bf | 112 | |
aa7e44bf GB |
113 | /* |
114 | * Write the actual SHA1 entries.. | |
115 | */ | |
116 | list = sorted_by_sha; | |
117 | for (i = 0; i < nr_objects; i++) { | |
118 | struct pack_idx_entry *obj = *list++; | |
389cf68c RS |
119 | if (index_version < 2) |
120 | hashwrite_be32(f, obj->offset); | |
98a3beab | 121 | hashwrite(f, obj->oid.hash, the_hash_algo->rawsz); |
68be2fea | 122 | if ((opts->flags & WRITE_IDX_STRICT) && |
4a7e27e9 | 123 | (i && oideq(&list[-2]->oid, &obj->oid))) |
68be2fea | 124 | die("The same object %s appears twice in the pack", |
e6a492b7 | 125 | oid_to_hex(&obj->oid)); |
aa7e44bf GB |
126 | } |
127 | ||
128 | if (index_version >= 2) { | |
129 | unsigned int nr_large_offset = 0; | |
130 | ||
131 | /* write the crc32 table */ | |
132 | list = sorted_by_sha; | |
133 | for (i = 0; i < nr_objects; i++) { | |
134 | struct pack_idx_entry *obj = *list++; | |
389cf68c | 135 | hashwrite_be32(f, obj->crc32); |
aa7e44bf GB |
136 | } |
137 | ||
138 | /* write the 32-bit offset table */ | |
139 | list = sorted_by_sha; | |
140 | for (i = 0; i < nr_objects; i++) { | |
141 | struct pack_idx_entry *obj = *list++; | |
fb956c1f JH |
142 | uint32_t offset; |
143 | ||
144 | offset = (need_large_offset(obj->offset, opts) | |
145 | ? (0x80000000 | nr_large_offset++) | |
146 | : obj->offset); | |
389cf68c | 147 | hashwrite_be32(f, offset); |
aa7e44bf GB |
148 | } |
149 | ||
150 | /* write the large offset table */ | |
151 | list = sorted_by_sha; | |
152 | while (nr_large_offset) { | |
153 | struct pack_idx_entry *obj = *list++; | |
154 | uint64_t offset = obj->offset; | |
fb956c1f JH |
155 | |
156 | if (!need_large_offset(offset, opts)) | |
157 | continue; | |
970909c2 | 158 | hashwrite_be64(f, offset); |
fb956c1f | 159 | nr_large_offset--; |
aa7e44bf GB |
160 | } |
161 | } | |
162 | ||
98a3beab | 163 | hashwrite(f, sha1, the_hash_algo->rawsz); |
cfe83216 DS |
164 | finalize_hashfile(f, NULL, CSUM_HASH_IN_STREAM | CSUM_CLOSE | |
165 | ((opts->flags & WRITE_IDX_VERIFY) | |
166 | ? 0 : CSUM_FSYNC)); | |
aa7e44bf GB |
167 | return index_name; |
168 | } | |
8b0eca7c | 169 | |
8ef50d99 TB |
170 | static int pack_order_cmp(const void *va, const void *vb, void *ctx) |
171 | { | |
172 | struct pack_idx_entry **objects = ctx; | |
173 | ||
174 | off_t oa = objects[*(uint32_t*)va]->offset; | |
175 | off_t ob = objects[*(uint32_t*)vb]->offset; | |
176 | ||
177 | if (oa < ob) | |
178 | return -1; | |
179 | if (oa > ob) | |
180 | return 1; | |
181 | return 0; | |
182 | } | |
183 | ||
184 | static void write_rev_header(struct hashfile *f) | |
185 | { | |
186 | uint32_t oid_version; | |
187 | switch (hash_algo_by_ptr(the_hash_algo)) { | |
188 | case GIT_HASH_SHA1: | |
189 | oid_version = 1; | |
190 | break; | |
191 | case GIT_HASH_SHA256: | |
192 | oid_version = 2; | |
193 | break; | |
194 | default: | |
195 | die("write_rev_header: unknown hash version"); | |
196 | } | |
197 | ||
198 | hashwrite_be32(f, RIDX_SIGNATURE); | |
199 | hashwrite_be32(f, RIDX_VERSION); | |
200 | hashwrite_be32(f, oid_version); | |
201 | } | |
202 | ||
203 | static void write_rev_index_positions(struct hashfile *f, | |
204 | struct pack_idx_entry **objects, | |
205 | uint32_t nr_objects) | |
206 | { | |
207 | uint32_t *pack_order; | |
208 | uint32_t i; | |
209 | ||
210 | ALLOC_ARRAY(pack_order, nr_objects); | |
211 | for (i = 0; i < nr_objects; i++) | |
212 | pack_order[i] = i; | |
213 | QSORT_S(pack_order, nr_objects, pack_order_cmp, objects); | |
214 | ||
215 | for (i = 0; i < nr_objects; i++) | |
216 | hashwrite_be32(f, pack_order[i]); | |
217 | ||
218 | free(pack_order); | |
219 | } | |
220 | ||
221 | static void write_rev_trailer(struct hashfile *f, const unsigned char *hash) | |
222 | { | |
223 | hashwrite(f, hash, the_hash_algo->rawsz); | |
224 | } | |
225 | ||
226 | const char *write_rev_file(const char *rev_name, | |
227 | struct pack_idx_entry **objects, | |
228 | uint32_t nr_objects, | |
229 | const unsigned char *hash, | |
230 | unsigned flags) | |
231 | { | |
232 | struct hashfile *f; | |
233 | int fd; | |
234 | ||
235 | if ((flags & WRITE_REV) && (flags & WRITE_REV_VERIFY)) | |
236 | die(_("cannot both write and verify reverse index")); | |
237 | ||
238 | if (flags & WRITE_REV) { | |
239 | if (!rev_name) { | |
240 | struct strbuf tmp_file = STRBUF_INIT; | |
241 | fd = odb_mkstemp(&tmp_file, "pack/tmp_rev_XXXXXX"); | |
242 | rev_name = strbuf_detach(&tmp_file, NULL); | |
243 | } else { | |
244 | unlink(rev_name); | |
245 | fd = open(rev_name, O_CREAT|O_EXCL|O_WRONLY, 0600); | |
246 | if (fd < 0) | |
247 | die_errno("unable to create '%s'", rev_name); | |
248 | } | |
249 | f = hashfd(fd, rev_name); | |
250 | } else if (flags & WRITE_REV_VERIFY) { | |
251 | struct stat statbuf; | |
252 | if (stat(rev_name, &statbuf)) { | |
253 | if (errno == ENOENT) { | |
254 | /* .rev files are optional */ | |
255 | return NULL; | |
256 | } else | |
257 | die_errno(_("could not stat: %s"), rev_name); | |
258 | } | |
259 | f = hashfd_check(rev_name); | |
260 | } else | |
261 | return NULL; | |
262 | ||
263 | write_rev_header(f); | |
264 | ||
265 | write_rev_index_positions(f, objects, nr_objects); | |
266 | write_rev_trailer(f, hash); | |
267 | ||
268 | if (rev_name && adjust_shared_perm(rev_name) < 0) | |
269 | die(_("failed to make %s readable"), rev_name); | |
270 | ||
271 | finalize_hashfile(f, NULL, CSUM_HASH_IN_STREAM | CSUM_CLOSE | | |
272 | ((flags & WRITE_IDX_VERIFY) ? 0 : CSUM_FSYNC)); | |
273 | ||
274 | return rev_name; | |
275 | } | |
276 | ||
98a3beab | 277 | off_t write_pack_header(struct hashfile *f, uint32_t nr_entries) |
c0ad4657 JH |
278 | { |
279 | struct pack_header hdr; | |
280 | ||
281 | hdr.hdr_signature = htonl(PACK_SIGNATURE); | |
282 | hdr.hdr_version = htonl(PACK_VERSION); | |
283 | hdr.hdr_entries = htonl(nr_entries); | |
98a3beab | 284 | hashwrite(f, &hdr, sizeof(hdr)); |
c0ad4657 JH |
285 | return sizeof(hdr); |
286 | } | |
287 | ||
abeb40e5 NP |
288 | /* |
289 | * Update pack header with object_count and compute new SHA1 for pack data | |
290 | * associated to pack_fd, and write that SHA1 at the end. That new SHA1 | |
291 | * is also returned in new_pack_sha1. | |
292 | * | |
293 | * If partial_pack_sha1 is non null, then the SHA1 of the existing pack | |
294 | * (without the header update) is computed and validated against the | |
295 | * one provided in partial_pack_sha1. The validation is performed at | |
296 | * partial_pack_offset bytes in the pack file. The SHA1 of the remaining | |
297 | * data (i.e. from partial_pack_offset to the end) is then computed and | |
298 | * returned in partial_pack_sha1. | |
299 | * | |
300 | * Note that new_pack_sha1 is updated last, so both new_pack_sha1 and | |
301 | * partial_pack_sha1 can refer to the same buffer if the caller is not | |
302 | * interested in the resulting SHA1 of pack data above partial_pack_offset. | |
303 | */ | |
8b0eca7c | 304 | void fixup_pack_header_footer(int pack_fd, |
81c58cd4 | 305 | unsigned char *new_pack_hash, |
8b0eca7c | 306 | const char *pack_name, |
abeb40e5 | 307 | uint32_t object_count, |
81c58cd4 | 308 | unsigned char *partial_pack_hash, |
abeb40e5 | 309 | off_t partial_pack_offset) |
8b0eca7c | 310 | { |
d35825da | 311 | int aligned_sz, buf_sz = 8 * 1024; |
81c58cd4 | 312 | git_hash_ctx old_hash_ctx, new_hash_ctx; |
8b0eca7c DH |
313 | struct pack_header hdr; |
314 | char *buf; | |
90dca671 | 315 | ssize_t read_result; |
8b0eca7c | 316 | |
81c58cd4 | 317 | the_hash_algo->init_fn(&old_hash_ctx); |
318 | the_hash_algo->init_fn(&new_hash_ctx); | |
abeb40e5 | 319 | |
8b0eca7c | 320 | if (lseek(pack_fd, 0, SEEK_SET) != 0) |
d824cbba | 321 | die_errno("Failed seeking to start of '%s'", pack_name); |
90dca671 JK |
322 | read_result = read_in_full(pack_fd, &hdr, sizeof(hdr)); |
323 | if (read_result < 0) | |
d824cbba | 324 | die_errno("Unable to reread header of '%s'", pack_name); |
90dca671 JK |
325 | else if (read_result != sizeof(hdr)) |
326 | die_errno("Unexpected short read for header of '%s'", | |
327 | pack_name); | |
8b0eca7c | 328 | if (lseek(pack_fd, 0, SEEK_SET) != 0) |
d824cbba | 329 | die_errno("Failed seeking to start of '%s'", pack_name); |
81c58cd4 | 330 | the_hash_algo->update_fn(&old_hash_ctx, &hdr, sizeof(hdr)); |
8b0eca7c | 331 | hdr.hdr_entries = htonl(object_count); |
81c58cd4 | 332 | the_hash_algo->update_fn(&new_hash_ctx, &hdr, sizeof(hdr)); |
8b0eca7c | 333 | write_or_die(pack_fd, &hdr, sizeof(hdr)); |
abeb40e5 | 334 | partial_pack_offset -= sizeof(hdr); |
8b0eca7c DH |
335 | |
336 | buf = xmalloc(buf_sz); | |
d35825da | 337 | aligned_sz = buf_sz - sizeof(hdr); |
8b0eca7c | 338 | for (;;) { |
abeb40e5 | 339 | ssize_t m, n; |
81c58cd4 | 340 | m = (partial_pack_hash && partial_pack_offset < aligned_sz) ? |
d35825da | 341 | partial_pack_offset : aligned_sz; |
abeb40e5 | 342 | n = xread(pack_fd, buf, m); |
8b0eca7c DH |
343 | if (!n) |
344 | break; | |
345 | if (n < 0) | |
d824cbba | 346 | die_errno("Failed to checksum '%s'", pack_name); |
81c58cd4 | 347 | the_hash_algo->update_fn(&new_hash_ctx, buf, n); |
abeb40e5 | 348 | |
d35825da NP |
349 | aligned_sz -= n; |
350 | if (!aligned_sz) | |
351 | aligned_sz = buf_sz; | |
352 | ||
81c58cd4 | 353 | if (!partial_pack_hash) |
abeb40e5 NP |
354 | continue; |
355 | ||
81c58cd4 | 356 | the_hash_algo->update_fn(&old_hash_ctx, buf, n); |
abeb40e5 NP |
357 | partial_pack_offset -= n; |
358 | if (partial_pack_offset == 0) { | |
81c58cd4 | 359 | unsigned char hash[GIT_MAX_RAWSZ]; |
360 | the_hash_algo->final_fn(hash, &old_hash_ctx); | |
67947c34 | 361 | if (!hasheq(hash, partial_pack_hash)) |
abeb40e5 NP |
362 | die("Unexpected checksum for %s " |
363 | "(disk corruption?)", pack_name); | |
364 | /* | |
365 | * Now let's compute the SHA1 of the remainder of the | |
366 | * pack, which also means making partial_pack_offset | |
367 | * big enough not to matter anymore. | |
368 | */ | |
81c58cd4 | 369 | the_hash_algo->init_fn(&old_hash_ctx); |
abeb40e5 NP |
370 | partial_pack_offset = ~partial_pack_offset; |
371 | partial_pack_offset -= MSB(partial_pack_offset, 1); | |
372 | } | |
8b0eca7c DH |
373 | } |
374 | free(buf); | |
375 | ||
81c58cd4 | 376 | if (partial_pack_hash) |
377 | the_hash_algo->final_fn(partial_pack_hash, &old_hash_ctx); | |
378 | the_hash_algo->final_fn(new_pack_hash, &new_hash_ctx); | |
379 | write_or_die(pack_fd, new_pack_hash, the_hash_algo->rawsz); | |
0c68d386 | 380 | fsync_or_die(pack_fd, pack_name); |
8b0eca7c | 381 | } |
106764e6 | 382 | |
5476e1ef | 383 | char *index_pack_lockfile(int ip_out, int *is_well_formed) |
106764e6 | 384 | { |
81c58cd4 | 385 | char packname[GIT_MAX_HEXSZ + 6]; |
386 | const int len = the_hash_algo->hexsz + 6; | |
106764e6 SP |
387 | |
388 | /* | |
6e180cdc | 389 | * The first thing we expect from index-pack's output |
106764e6 SP |
390 | * is "pack\t%40s\n" or "keep\t%40s\n" (46 bytes) where |
391 | * %40s is the newly created pack SHA1 name. In the "keep" | |
392 | * case, we need it to remove the corresponding .keep file | |
393 | * later on. If we don't get that then tough luck with it. | |
394 | */ | |
81c58cd4 | 395 | if (read_in_full(ip_out, packname, len) == len && packname[len-1] == '\n') { |
d7731444 | 396 | const char *name; |
5476e1ef JT |
397 | |
398 | if (is_well_formed) | |
399 | *is_well_formed = 1; | |
81c58cd4 | 400 | packname[len-1] = 0; |
d7731444 RS |
401 | if (skip_prefix(packname, "keep\t", &name)) |
402 | return xstrfmt("%s/pack/pack-%s.keep", | |
403 | get_object_directory(), name); | |
5476e1ef | 404 | return NULL; |
106764e6 | 405 | } |
5476e1ef JT |
406 | if (is_well_formed) |
407 | *is_well_formed = 0; | |
106764e6 SP |
408 | return NULL; |
409 | } | |
f965c525 NP |
410 | |
411 | /* | |
412 | * The per-object header is a pretty dense thing, which is | |
413 | * - first byte: low four bits are "size", then three bits of "type", | |
414 | * and the high bit is "size continues". | |
415 | * - each byte afterwards: low seven bits are size continuation, | |
416 | * with the high bit being "size continues" | |
417 | */ | |
7202a6fa JK |
418 | int encode_in_pack_object_header(unsigned char *hdr, int hdr_len, |
419 | enum object_type type, uintmax_t size) | |
f965c525 NP |
420 | { |
421 | int n = 1; | |
422 | unsigned char c; | |
423 | ||
424 | if (type < OBJ_COMMIT || type > OBJ_REF_DELTA) | |
425 | die("bad type %d", type); | |
426 | ||
427 | c = (type << 4) | (size & 15); | |
428 | size >>= 4; | |
429 | while (size) { | |
7202a6fa JK |
430 | if (n == hdr_len) |
431 | die("object size is too enormous to format"); | |
f965c525 NP |
432 | *hdr++ = c | 0x80; |
433 | c = size & 0x7f; | |
434 | size >>= 7; | |
435 | n++; | |
436 | } | |
437 | *hdr = c; | |
438 | return n; | |
439 | } | |
cdf9db3c | 440 | |
98a3beab | 441 | struct hashfile *create_tmp_packfile(char **pack_tmp_name) |
cdf9db3c | 442 | { |
594fa999 | 443 | struct strbuf tmpname = STRBUF_INIT; |
cdf9db3c JH |
444 | int fd; |
445 | ||
594fa999 JK |
446 | fd = odb_mkstemp(&tmpname, "pack/tmp_pack_XXXXXX"); |
447 | *pack_tmp_name = strbuf_detach(&tmpname, NULL); | |
98a3beab | 448 | return hashfd(fd, *pack_tmp_name); |
cdf9db3c | 449 | } |
0e990530 | 450 | |
58892711 | 451 | void finish_tmp_packfile(struct strbuf *name_buffer, |
0e990530 JH |
452 | const char *pack_tmp_name, |
453 | struct pack_idx_entry **written_list, | |
454 | uint32_t nr_written, | |
455 | struct pack_idx_option *pack_idx_opts, | |
894c0f66 | 456 | unsigned char hash[]) |
0e990530 | 457 | { |
8ef50d99 | 458 | const char *idx_tmp_name, *rev_tmp_name = NULL; |
58892711 | 459 | int basename_len = name_buffer->len; |
0e990530 JH |
460 | |
461 | if (adjust_shared_perm(pack_tmp_name)) | |
462 | die_errno("unable to make temporary pack file readable"); | |
463 | ||
464 | idx_tmp_name = write_idx_file(NULL, written_list, nr_written, | |
894c0f66 | 465 | pack_idx_opts, hash); |
0e990530 JH |
466 | if (adjust_shared_perm(idx_tmp_name)) |
467 | die_errno("unable to make temporary index file readable"); | |
468 | ||
8ef50d99 TB |
469 | rev_tmp_name = write_rev_file(NULL, written_list, nr_written, hash, |
470 | pack_idx_opts->flags); | |
471 | ||
894c0f66 | 472 | strbuf_addf(name_buffer, "%s.pack", hash_to_hex(hash)); |
0e990530 | 473 | |
58892711 | 474 | if (rename(pack_tmp_name, name_buffer->buf)) |
0e990530 JH |
475 | die_errno("unable to rename temporary pack file"); |
476 | ||
58892711 SH |
477 | strbuf_setlen(name_buffer, basename_len); |
478 | ||
894c0f66 | 479 | strbuf_addf(name_buffer, "%s.idx", hash_to_hex(hash)); |
58892711 | 480 | if (rename(idx_tmp_name, name_buffer->buf)) |
0e990530 JH |
481 | die_errno("unable to rename temporary index file"); |
482 | ||
58892711 | 483 | strbuf_setlen(name_buffer, basename_len); |
7cc8f971 | 484 | |
8ef50d99 TB |
485 | if (rev_tmp_name) { |
486 | strbuf_addf(name_buffer, "%s.rev", hash_to_hex(hash)); | |
487 | if (rename(rev_tmp_name, name_buffer->buf)) | |
488 | die_errno("unable to rename temporary reverse-index file"); | |
489 | } | |
490 | ||
491 | strbuf_setlen(name_buffer, basename_len); | |
492 | ||
0e990530 JH |
493 | free((void *)idx_tmp_name); |
494 | } | |
33add2ad CC |
495 | |
496 | void write_promisor_file(const char *promisor_name, struct ref **sought, int nr_sought) | |
497 | { | |
7c99bc23 | 498 | int i, err; |
33add2ad CC |
499 | FILE *output = xfopen(promisor_name, "w"); |
500 | ||
501 | for (i = 0; i < nr_sought; i++) | |
502 | fprintf(output, "%s %s\n", oid_to_hex(&sought[i]->old_oid), | |
503 | sought[i]->name); | |
7c99bc23 CC |
504 | |
505 | err = ferror(output); | |
506 | err |= fclose(output); | |
507 | if (err) | |
508 | die(_("could not write '%s' promisor file"), promisor_name); | |
33add2ad | 509 | } |