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Commit | Line | Data |
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b888d61c DB |
1 | /* |
2 | * "git fetch" | |
3 | */ | |
4 | #include "cache.h" | |
5 | #include "refs.h" | |
6 | #include "commit.h" | |
7 | #include "builtin.h" | |
8 | #include "path-list.h" | |
9 | #include "remote.h" | |
10 | #include "transport.h" | |
4191c356 | 11 | #include "run-command.h" |
83201998 | 12 | #include "parse-options.h" |
b888d61c | 13 | |
83201998 KH |
14 | static const char * const builtin_fetch_usage[] = { |
15 | "git-fetch [options] [<repository> <refspec>...]", | |
16 | NULL | |
17 | }; | |
b888d61c | 18 | |
83201998 KH |
19 | enum { |
20 | TAGS_UNSET = 0, | |
21 | TAGS_DEFAULT = 1, | |
22 | TAGS_SET = 2 | |
23 | }; | |
24 | ||
25 | static int append, force, keep, update_head_ok, verbose, quiet; | |
26 | static int tags = TAGS_DEFAULT; | |
4191c356 | 27 | static const char *depth; |
83201998 | 28 | static const char *upload_pack; |
2d324efa | 29 | static struct strbuf default_rla = STRBUF_INIT; |
e4022ed2 SP |
30 | static struct transport *transport; |
31 | ||
83201998 KH |
32 | static struct option builtin_fetch_options[] = { |
33 | OPT__QUIET(&quiet), | |
34 | OPT__VERBOSE(&verbose), | |
35 | OPT_BOOLEAN('a', "append", &append, | |
36 | "append to .git/FETCH_HEAD instead of overwriting"), | |
37 | OPT_STRING(0, "upload-pack", &upload_pack, "PATH", | |
38 | "path to upload pack on remote end"), | |
39 | OPT_BOOLEAN('f', "force", &force, | |
40 | "force overwrite of local branch"), | |
41 | OPT_SET_INT('t', "tags", &tags, | |
42 | "fetch all tags and associated objects", TAGS_SET), | |
43 | OPT_BOOLEAN('k', "keep", &keep, "keep downloaded pack"), | |
44 | OPT_BOOLEAN('u', "update-head-ok", &update_head_ok, | |
45 | "allow updating of HEAD ref"), | |
46 | OPT_STRING(0, "depth", &depth, "DEPTH", | |
47 | "deepen history of shallow clone"), | |
48 | OPT_END() | |
49 | }; | |
50 | ||
e4022ed2 SP |
51 | static void unlock_pack(void) |
52 | { | |
53 | if (transport) | |
54 | transport_unlock_pack(transport); | |
55 | } | |
56 | ||
57 | static void unlock_pack_on_signal(int signo) | |
58 | { | |
59 | unlock_pack(); | |
60 | signal(SIGINT, SIG_DFL); | |
61 | raise(signo); | |
62 | } | |
b888d61c | 63 | |
85682c19 | 64 | static void add_merge_config(struct ref **head, |
4577370e | 65 | const struct ref *remote_refs, |
85682c19 SP |
66 | struct branch *branch, |
67 | struct ref ***tail) | |
b888d61c | 68 | { |
85682c19 | 69 | int i; |
b888d61c | 70 | |
85682c19 SP |
71 | for (i = 0; i < branch->merge_nr; i++) { |
72 | struct ref *rm, **old_tail = *tail; | |
73 | struct refspec refspec; | |
74 | ||
75 | for (rm = *head; rm; rm = rm->next) { | |
76 | if (branch_merge_matches(branch, i, rm->name)) { | |
b888d61c | 77 | rm->merge = 1; |
85682c19 SP |
78 | break; |
79 | } | |
b888d61c | 80 | } |
85682c19 SP |
81 | if (rm) |
82 | continue; | |
83 | ||
9ad7c5ae JH |
84 | /* |
85 | * Not fetched to a tracking branch? We need to fetch | |
85682c19 | 86 | * it anyway to allow this branch's "branch.$name.merge" |
9ad7c5ae JH |
87 | * to be honored by git-pull, but we do not have to |
88 | * fail if branch.$name.merge is misconfigured to point | |
89 | * at a nonexisting branch. If we were indeed called by | |
90 | * git-pull, it will notice the misconfiguration because | |
91 | * there is no entry in the resulting FETCH_HEAD marked | |
92 | * for merging. | |
85682c19 SP |
93 | */ |
94 | refspec.src = branch->merge[i]->src; | |
95 | refspec.dst = NULL; | |
96 | refspec.pattern = 0; | |
97 | refspec.force = 0; | |
9ad7c5ae | 98 | get_fetch_map(remote_refs, &refspec, tail, 1); |
85682c19 SP |
99 | for (rm = *old_tail; rm; rm = rm->next) |
100 | rm->merge = 1; | |
b888d61c DB |
101 | } |
102 | } | |
103 | ||
104 | static struct ref *get_ref_map(struct transport *transport, | |
105 | struct refspec *refs, int ref_count, int tags, | |
106 | int *autotags) | |
107 | { | |
108 | int i; | |
109 | struct ref *rm; | |
110 | struct ref *ref_map = NULL; | |
111 | struct ref **tail = &ref_map; | |
112 | ||
4577370e | 113 | const struct ref *remote_refs = transport_get_remote_refs(transport); |
b888d61c | 114 | |
83201998 | 115 | if (ref_count || tags == TAGS_SET) { |
b888d61c | 116 | for (i = 0; i < ref_count; i++) { |
9ad7c5ae | 117 | get_fetch_map(remote_refs, &refs[i], &tail, 0); |
b888d61c DB |
118 | if (refs[i].dst && refs[i].dst[0]) |
119 | *autotags = 1; | |
120 | } | |
121 | /* Merge everything on the command line, but not --tags */ | |
122 | for (rm = ref_map; rm; rm = rm->next) | |
123 | rm->merge = 1; | |
83201998 | 124 | if (tags == TAGS_SET) { |
b888d61c DB |
125 | struct refspec refspec; |
126 | refspec.src = "refs/tags/"; | |
127 | refspec.dst = "refs/tags/"; | |
128 | refspec.pattern = 1; | |
129 | refspec.force = 0; | |
9ad7c5ae | 130 | get_fetch_map(remote_refs, &refspec, &tail, 0); |
b888d61c DB |
131 | } |
132 | } else { | |
133 | /* Use the defaults */ | |
134 | struct remote *remote = transport->remote; | |
85682c19 SP |
135 | struct branch *branch = branch_get(NULL); |
136 | int has_merge = branch_has_merge_config(branch); | |
137 | if (remote && (remote->fetch_refspec_nr || has_merge)) { | |
b888d61c | 138 | for (i = 0; i < remote->fetch_refspec_nr; i++) { |
9ad7c5ae | 139 | get_fetch_map(remote_refs, &remote->fetch[i], &tail, 0); |
b888d61c DB |
140 | if (remote->fetch[i].dst && |
141 | remote->fetch[i].dst[0]) | |
142 | *autotags = 1; | |
85682c19 | 143 | if (!i && !has_merge && ref_map && |
cfb8f898 | 144 | !remote->fetch[0].pattern) |
85682c19 | 145 | ref_map->merge = 1; |
b888d61c | 146 | } |
da0204df JS |
147 | /* |
148 | * if the remote we're fetching from is the same | |
149 | * as given in branch.<name>.remote, we add the | |
150 | * ref given in branch.<name>.merge, too. | |
151 | */ | |
9ad7c5ae JH |
152 | if (has_merge && |
153 | !strcmp(branch->remote_name, remote->name)) | |
85682c19 | 154 | add_merge_config(&ref_map, remote_refs, branch, &tail); |
b888d61c DB |
155 | } else { |
156 | ref_map = get_remote_ref(remote_refs, "HEAD"); | |
9ad7c5ae JH |
157 | if (!ref_map) |
158 | die("Couldn't find remote ref HEAD"); | |
b888d61c DB |
159 | ref_map->merge = 1; |
160 | } | |
161 | } | |
2467a4fa | 162 | ref_remove_duplicates(ref_map); |
b888d61c DB |
163 | |
164 | return ref_map; | |
165 | } | |
166 | ||
b888d61c DB |
167 | static int s_update_ref(const char *action, |
168 | struct ref *ref, | |
169 | int check_old) | |
170 | { | |
171 | char msg[1024]; | |
172 | char *rla = getenv("GIT_REFLOG_ACTION"); | |
173 | static struct ref_lock *lock; | |
174 | ||
175 | if (!rla) | |
2d324efa | 176 | rla = default_rla.buf; |
b888d61c DB |
177 | snprintf(msg, sizeof(msg), "%s: %s", rla, action); |
178 | lock = lock_any_ref_for_update(ref->name, | |
179 | check_old ? ref->old_sha1 : NULL, 0); | |
180 | if (!lock) | |
181 | return 1; | |
182 | if (write_ref_sha1(lock, ref->new_sha1, msg) < 0) | |
183 | return 1; | |
184 | return 0; | |
185 | } | |
186 | ||
165f3902 | 187 | #define SUMMARY_WIDTH (2 * DEFAULT_ABBREV + 3) |
9ef4272b | 188 | #define REFCOL_WIDTH 10 |
165f3902 | 189 | |
b888d61c | 190 | static int update_local_ref(struct ref *ref, |
165f3902 NP |
191 | const char *remote, |
192 | int verbose, | |
193 | char *display) | |
b888d61c | 194 | { |
b888d61c DB |
195 | struct commit *current = NULL, *updated; |
196 | enum object_type type; | |
197 | struct branch *current_branch = branch_get(NULL); | |
165f3902 NP |
198 | const char *pretty_ref = ref->name + ( |
199 | !prefixcmp(ref->name, "refs/heads/") ? 11 : | |
200 | !prefixcmp(ref->name, "refs/tags/") ? 10 : | |
201 | !prefixcmp(ref->name, "refs/remotes/") ? 13 : | |
202 | 0); | |
b888d61c | 203 | |
165f3902 | 204 | *display = 0; |
b888d61c DB |
205 | type = sha1_object_info(ref->new_sha1, NULL); |
206 | if (type < 0) | |
207 | die("object %s not found", sha1_to_hex(ref->new_sha1)); | |
208 | ||
209 | if (!*ref->name) { | |
210 | /* Not storing */ | |
165f3902 NP |
211 | if (verbose) |
212 | sprintf(display, "* branch %s -> FETCH_HEAD", remote); | |
b888d61c DB |
213 | return 0; |
214 | } | |
215 | ||
216 | if (!hashcmp(ref->old_sha1, ref->new_sha1)) { | |
165f3902 | 217 | if (verbose) |
9ef4272b PH |
218 | sprintf(display, "= %-*s %-*s -> %s", SUMMARY_WIDTH, |
219 | "[up to date]", REFCOL_WIDTH, remote, | |
220 | pretty_ref); | |
b888d61c DB |
221 | return 0; |
222 | } | |
223 | ||
b3abdd9d SP |
224 | if (current_branch && |
225 | !strcmp(ref->name, current_branch->name) && | |
b888d61c DB |
226 | !(update_head_ok || is_bare_repository()) && |
227 | !is_null_sha1(ref->old_sha1)) { | |
228 | /* | |
229 | * If this is the head, and it's not okay to update | |
230 | * the head, and the old value of the head isn't empty... | |
231 | */ | |
9ef4272b PH |
232 | sprintf(display, "! %-*s %-*s -> %s (can't fetch in current branch)", |
233 | SUMMARY_WIDTH, "[rejected]", REFCOL_WIDTH, remote, | |
234 | pretty_ref); | |
b888d61c DB |
235 | return 1; |
236 | } | |
237 | ||
238 | if (!is_null_sha1(ref->old_sha1) && | |
239 | !prefixcmp(ref->name, "refs/tags/")) { | |
9ef4272b PH |
240 | sprintf(display, "- %-*s %-*s -> %s", |
241 | SUMMARY_WIDTH, "[tag update]", REFCOL_WIDTH, remote, | |
242 | pretty_ref); | |
b888d61c DB |
243 | return s_update_ref("updating tag", ref, 0); |
244 | } | |
245 | ||
cfa5b2b7 SP |
246 | current = lookup_commit_reference_gently(ref->old_sha1, 1); |
247 | updated = lookup_commit_reference_gently(ref->new_sha1, 1); | |
b888d61c | 248 | if (!current || !updated) { |
165f3902 NP |
249 | const char *msg; |
250 | const char *what; | |
251 | if (!strncmp(ref->name, "refs/tags/", 10)) { | |
b888d61c | 252 | msg = "storing tag"; |
165f3902 NP |
253 | what = "[new tag]"; |
254 | } | |
255 | else { | |
b888d61c | 256 | msg = "storing head"; |
165f3902 NP |
257 | what = "[new branch]"; |
258 | } | |
259 | ||
9ef4272b PH |
260 | sprintf(display, "* %-*s %-*s -> %s", SUMMARY_WIDTH, what, |
261 | REFCOL_WIDTH, remote, pretty_ref); | |
b888d61c DB |
262 | return s_update_ref(msg, ref, 0); |
263 | } | |
264 | ||
b888d61c | 265 | if (in_merge_bases(current, &updated, 1)) { |
165f3902 NP |
266 | char quickref[83]; |
267 | strcpy(quickref, find_unique_abbrev(current->object.sha1, DEFAULT_ABBREV)); | |
268 | strcat(quickref, ".."); | |
269 | strcat(quickref, find_unique_abbrev(ref->new_sha1, DEFAULT_ABBREV)); | |
9ef4272b PH |
270 | sprintf(display, " %-*s %-*s -> %s", SUMMARY_WIDTH, quickref, |
271 | REFCOL_WIDTH, remote, pretty_ref); | |
b888d61c | 272 | return s_update_ref("fast forward", ref, 1); |
165f3902 NP |
273 | } else if (force || ref->force) { |
274 | char quickref[84]; | |
275 | strcpy(quickref, find_unique_abbrev(current->object.sha1, DEFAULT_ABBREV)); | |
276 | strcat(quickref, "..."); | |
277 | strcat(quickref, find_unique_abbrev(ref->new_sha1, DEFAULT_ABBREV)); | |
9ef4272b PH |
278 | sprintf(display, "+ %-*s %-*s -> %s (forced update)", |
279 | SUMMARY_WIDTH, quickref, REFCOL_WIDTH, remote, pretty_ref); | |
165f3902 NP |
280 | return s_update_ref("forced-update", ref, 1); |
281 | } else { | |
9ef4272b PH |
282 | sprintf(display, "! %-*s %-*s -> %s (non fast forward)", |
283 | SUMMARY_WIDTH, "[rejected]", REFCOL_WIDTH, remote, | |
284 | pretty_ref); | |
b888d61c DB |
285 | return 1; |
286 | } | |
b888d61c DB |
287 | } |
288 | ||
d6617c7c | 289 | static int store_updated_refs(const char *url, struct ref *ref_map) |
b888d61c DB |
290 | { |
291 | FILE *fp; | |
292 | struct commit *commit; | |
165f3902 | 293 | int url_len, i, note_len, shown_url = 0; |
b888d61c DB |
294 | char note[1024]; |
295 | const char *what, *kind; | |
296 | struct ref *rm; | |
d6617c7c | 297 | char *filename = git_path("FETCH_HEAD"); |
b888d61c | 298 | |
d6617c7c AGR |
299 | fp = fopen(filename, "a"); |
300 | if (!fp) | |
301 | return error("cannot open %s: %s\n", filename, strerror(errno)); | |
b888d61c DB |
302 | for (rm = ref_map; rm; rm = rm->next) { |
303 | struct ref *ref = NULL; | |
304 | ||
305 | if (rm->peer_ref) { | |
306 | ref = xcalloc(1, sizeof(*ref) + strlen(rm->peer_ref->name) + 1); | |
307 | strcpy(ref->name, rm->peer_ref->name); | |
308 | hashcpy(ref->old_sha1, rm->peer_ref->old_sha1); | |
309 | hashcpy(ref->new_sha1, rm->old_sha1); | |
1aad91f5 | 310 | ref->force = rm->peer_ref->force; |
b888d61c DB |
311 | } |
312 | ||
cfa5b2b7 | 313 | commit = lookup_commit_reference_gently(rm->old_sha1, 1); |
b888d61c DB |
314 | if (!commit) |
315 | rm->merge = 0; | |
316 | ||
317 | if (!strcmp(rm->name, "HEAD")) { | |
318 | kind = ""; | |
319 | what = ""; | |
320 | } | |
321 | else if (!prefixcmp(rm->name, "refs/heads/")) { | |
322 | kind = "branch"; | |
323 | what = rm->name + 11; | |
324 | } | |
325 | else if (!prefixcmp(rm->name, "refs/tags/")) { | |
326 | kind = "tag"; | |
327 | what = rm->name + 10; | |
328 | } | |
329 | else if (!prefixcmp(rm->name, "refs/remotes/")) { | |
330 | kind = "remote branch"; | |
331 | what = rm->name + 13; | |
332 | } | |
333 | else { | |
334 | kind = ""; | |
335 | what = rm->name; | |
336 | } | |
337 | ||
338 | url_len = strlen(url); | |
339 | for (i = url_len - 1; url[i] == '/' && 0 <= i; i--) | |
340 | ; | |
341 | url_len = i + 1; | |
342 | if (4 < i && !strncmp(".git", url + i - 3, 4)) | |
343 | url_len = i - 3; | |
344 | ||
345 | note_len = 0; | |
346 | if (*what) { | |
347 | if (*kind) | |
348 | note_len += sprintf(note + note_len, "%s ", | |
349 | kind); | |
350 | note_len += sprintf(note + note_len, "'%s' of ", what); | |
351 | } | |
352 | note_len += sprintf(note + note_len, "%.*s", url_len, url); | |
353 | fprintf(fp, "%s\t%s\t%s\n", | |
354 | sha1_to_hex(commit ? commit->object.sha1 : | |
355 | rm->old_sha1), | |
356 | rm->merge ? "" : "not-for-merge", | |
357 | note); | |
358 | ||
165f3902 NP |
359 | if (ref) { |
360 | update_local_ref(ref, what, verbose, note); | |
361 | if (*note) { | |
362 | if (!shown_url) { | |
363 | fprintf(stderr, "From %.*s\n", | |
364 | url_len, url); | |
365 | shown_url = 1; | |
366 | } | |
367 | fprintf(stderr, " %s\n", note); | |
368 | } | |
369 | } | |
b888d61c DB |
370 | } |
371 | fclose(fp); | |
d6617c7c | 372 | return 0; |
b888d61c DB |
373 | } |
374 | ||
4191c356 SP |
375 | /* |
376 | * We would want to bypass the object transfer altogether if | |
377 | * everything we are going to fetch already exists and connected | |
378 | * locally. | |
379 | * | |
380 | * The refs we are going to fetch are in to_fetch (nr_heads in | |
381 | * total). If running | |
382 | * | |
383 | * $ git-rev-list --objects to_fetch[0] to_fetch[1] ... --not --all | |
384 | * | |
385 | * does not error out, that means everything reachable from the | |
386 | * refs we are going to fetch exists and is connected to some of | |
387 | * our existing refs. | |
388 | */ | |
389 | static int quickfetch(struct ref *ref_map) | |
390 | { | |
391 | struct child_process revlist; | |
392 | struct ref *ref; | |
393 | char **argv; | |
394 | int i, err; | |
395 | ||
396 | /* | |
397 | * If we are deepening a shallow clone we already have these | |
398 | * objects reachable. Running rev-list here will return with | |
399 | * a good (0) exit status and we'll bypass the fetch that we | |
400 | * really need to perform. Claiming failure now will ensure | |
401 | * we perform the network exchange to deepen our history. | |
402 | */ | |
403 | if (depth) | |
404 | return -1; | |
405 | ||
406 | for (i = 0, ref = ref_map; ref; ref = ref->next) | |
407 | i++; | |
408 | if (!i) | |
409 | return 0; | |
410 | ||
411 | argv = xmalloc(sizeof(*argv) * (i + 6)); | |
412 | i = 0; | |
413 | argv[i++] = xstrdup("rev-list"); | |
414 | argv[i++] = xstrdup("--quiet"); | |
415 | argv[i++] = xstrdup("--objects"); | |
416 | for (ref = ref_map; ref; ref = ref->next) | |
417 | argv[i++] = xstrdup(sha1_to_hex(ref->old_sha1)); | |
418 | argv[i++] = xstrdup("--not"); | |
419 | argv[i++] = xstrdup("--all"); | |
420 | argv[i++] = NULL; | |
421 | ||
422 | memset(&revlist, 0, sizeof(revlist)); | |
423 | revlist.argv = (const char**)argv; | |
424 | revlist.git_cmd = 1; | |
425 | revlist.no_stdin = 1; | |
426 | revlist.no_stdout = 1; | |
427 | revlist.no_stderr = 1; | |
428 | err = run_command(&revlist); | |
429 | ||
430 | for (i = 0; argv[i]; i++) | |
431 | free(argv[i]); | |
432 | free(argv); | |
433 | return err; | |
434 | } | |
435 | ||
b888d61c DB |
436 | static int fetch_refs(struct transport *transport, struct ref *ref_map) |
437 | { | |
4191c356 SP |
438 | int ret = quickfetch(ref_map); |
439 | if (ret) | |
440 | ret = transport_fetch_refs(transport, ref_map); | |
b888d61c | 441 | if (!ret) |
d6617c7c | 442 | ret |= store_updated_refs(transport->url, ref_map); |
1788c39c | 443 | transport_unlock_pack(transport); |
b888d61c DB |
444 | return ret; |
445 | } | |
446 | ||
447 | static int add_existing(const char *refname, const unsigned char *sha1, | |
448 | int flag, void *cbdata) | |
449 | { | |
450 | struct path_list *list = (struct path_list *)cbdata; | |
451 | path_list_insert(refname, list); | |
452 | return 0; | |
453 | } | |
454 | ||
455 | static struct ref *find_non_local_tags(struct transport *transport, | |
456 | struct ref *fetch_map) | |
457 | { | |
458 | static struct path_list existing_refs = { NULL, 0, 0, 0 }; | |
459 | struct path_list new_refs = { NULL, 0, 0, 1 }; | |
460 | char *ref_name; | |
461 | int ref_name_len; | |
4577370e DB |
462 | const unsigned char *ref_sha1; |
463 | const struct ref *tag_ref; | |
b888d61c DB |
464 | struct ref *rm = NULL; |
465 | struct ref *ref_map = NULL; | |
466 | struct ref **tail = &ref_map; | |
4577370e | 467 | const struct ref *ref; |
b888d61c DB |
468 | |
469 | for_each_ref(add_existing, &existing_refs); | |
470 | for (ref = transport_get_remote_refs(transport); ref; ref = ref->next) { | |
471 | if (prefixcmp(ref->name, "refs/tags")) | |
472 | continue; | |
473 | ||
474 | ref_name = xstrdup(ref->name); | |
475 | ref_name_len = strlen(ref_name); | |
476 | ref_sha1 = ref->old_sha1; | |
477 | ||
478 | if (!strcmp(ref_name + ref_name_len - 3, "^{}")) { | |
479 | ref_name[ref_name_len - 3] = 0; | |
480 | tag_ref = transport_get_remote_refs(transport); | |
481 | while (tag_ref) { | |
482 | if (!strcmp(tag_ref->name, ref_name)) { | |
483 | ref_sha1 = tag_ref->old_sha1; | |
484 | break; | |
485 | } | |
486 | tag_ref = tag_ref->next; | |
487 | } | |
488 | } | |
489 | ||
490 | if (!path_list_has_path(&existing_refs, ref_name) && | |
491 | !path_list_has_path(&new_refs, ref_name) && | |
a3b0079c | 492 | has_sha1_file(ref->old_sha1)) { |
b888d61c DB |
493 | path_list_insert(ref_name, &new_refs); |
494 | ||
495 | rm = alloc_ref(strlen(ref_name) + 1); | |
496 | strcpy(rm->name, ref_name); | |
497 | rm->peer_ref = alloc_ref(strlen(ref_name) + 1); | |
498 | strcpy(rm->peer_ref->name, ref_name); | |
499 | hashcpy(rm->old_sha1, ref_sha1); | |
500 | ||
501 | *tail = rm; | |
502 | tail = &rm->next; | |
503 | } | |
504 | free(ref_name); | |
505 | } | |
506 | ||
507 | return ref_map; | |
508 | } | |
509 | ||
510 | static int do_fetch(struct transport *transport, | |
511 | struct refspec *refs, int ref_count) | |
512 | { | |
513 | struct ref *ref_map, *fetch_map; | |
514 | struct ref *rm; | |
515 | int autotags = (transport->remote->fetch_tags == 1); | |
83201998 KH |
516 | if (transport->remote->fetch_tags == 2 && tags != TAGS_UNSET) |
517 | tags = TAGS_SET; | |
b888d61c | 518 | if (transport->remote->fetch_tags == -1) |
83201998 | 519 | tags = TAGS_UNSET; |
b888d61c | 520 | |
824d5776 | 521 | if (!transport->get_refs_list || !transport->fetch) |
b888d61c DB |
522 | die("Don't know how to fetch from %s", transport->url); |
523 | ||
524 | /* if not appending, truncate FETCH_HEAD */ | |
d6617c7c AGR |
525 | if (!append) { |
526 | char *filename = git_path("FETCH_HEAD"); | |
527 | FILE *fp = fopen(filename, "w"); | |
528 | if (!fp) | |
529 | return error("cannot open %s: %s\n", filename, strerror(errno)); | |
530 | fclose(fp); | |
531 | } | |
b888d61c DB |
532 | |
533 | ref_map = get_ref_map(transport, refs, ref_count, tags, &autotags); | |
534 | ||
535 | for (rm = ref_map; rm; rm = rm->next) { | |
536 | if (rm->peer_ref) | |
537 | read_ref(rm->peer_ref->name, rm->peer_ref->old_sha1); | |
b888d61c DB |
538 | } |
539 | ||
540 | if (fetch_refs(transport, ref_map)) { | |
541 | free_refs(ref_map); | |
542 | return 1; | |
543 | } | |
544 | ||
545 | fetch_map = ref_map; | |
546 | ||
547 | /* if neither --no-tags nor --tags was specified, do automated tag | |
548 | * following ... */ | |
83201998 | 549 | if (tags == TAGS_DEFAULT && autotags) { |
b888d61c DB |
550 | ref_map = find_non_local_tags(transport, fetch_map); |
551 | if (ref_map) { | |
552 | transport_set_option(transport, TRANS_OPT_DEPTH, "0"); | |
553 | fetch_refs(transport, ref_map); | |
554 | } | |
555 | free_refs(ref_map); | |
556 | } | |
557 | ||
558 | free_refs(fetch_map); | |
559 | ||
560 | return 0; | |
561 | } | |
562 | ||
ab865e6e SP |
563 | static void set_option(const char *name, const char *value) |
564 | { | |
565 | int r = transport_set_option(transport, name, value); | |
566 | if (r < 0) | |
567 | die("Option \"%s\" value \"%s\" is not valid for %s\n", | |
568 | name, value, transport->url); | |
569 | if (r > 0) | |
570 | warning("Option \"%s\" is ignored for %s\n", | |
571 | name, transport->url); | |
572 | } | |
573 | ||
b888d61c DB |
574 | int cmd_fetch(int argc, const char **argv, const char *prefix) |
575 | { | |
576 | struct remote *remote; | |
2d324efa | 577 | int i; |
b888d61c DB |
578 | static const char **refs = NULL; |
579 | int ref_nr = 0; | |
b888d61c | 580 | |
2d324efa KH |
581 | /* Record the command line for the reflog */ |
582 | strbuf_addstr(&default_rla, "fetch"); | |
583 | for (i = 1; i < argc; i++) | |
584 | strbuf_addf(&default_rla, " %s", argv[i]); | |
585 | ||
83201998 KH |
586 | argc = parse_options(argc, argv, |
587 | builtin_fetch_options, builtin_fetch_usage, 0); | |
b888d61c | 588 | |
83201998 | 589 | if (argc == 0) |
b888d61c DB |
590 | remote = remote_get(NULL); |
591 | else | |
83201998 | 592 | remote = remote_get(argv[0]); |
b888d61c | 593 | |
28b91f8a | 594 | transport = transport_get(remote, remote->url[0]); |
b888d61c DB |
595 | if (verbose >= 2) |
596 | transport->verbose = 1; | |
597 | if (quiet) | |
2b5a06ed | 598 | transport->verbose = -1; |
b888d61c | 599 | if (upload_pack) |
ab865e6e | 600 | set_option(TRANS_OPT_UPLOADPACK, upload_pack); |
b888d61c | 601 | if (keep) |
ab865e6e SP |
602 | set_option(TRANS_OPT_KEEP, "yes"); |
603 | if (depth) | |
604 | set_option(TRANS_OPT_DEPTH, depth); | |
b888d61c DB |
605 | |
606 | if (!transport->url) | |
607 | die("Where do you want to fetch from today?"); | |
608 | ||
83201998 | 609 | if (argc > 1) { |
b888d61c | 610 | int j = 0; |
83201998 KH |
611 | refs = xcalloc(argc + 1, sizeof(const char *)); |
612 | for (i = 1; i < argc; i++) { | |
b888d61c DB |
613 | if (!strcmp(argv[i], "tag")) { |
614 | char *ref; | |
615 | i++; | |
616 | ref = xmalloc(strlen(argv[i]) * 2 + 22); | |
617 | strcpy(ref, "refs/tags/"); | |
618 | strcat(ref, argv[i]); | |
619 | strcat(ref, ":refs/tags/"); | |
620 | strcat(ref, argv[i]); | |
621 | refs[j++] = ref; | |
622 | } else | |
623 | refs[j++] = argv[i]; | |
b888d61c DB |
624 | } |
625 | refs[j] = NULL; | |
626 | ref_nr = j; | |
b888d61c DB |
627 | } |
628 | ||
e4022ed2 SP |
629 | signal(SIGINT, unlock_pack_on_signal); |
630 | atexit(unlock_pack); | |
b888d61c DB |
631 | return do_fetch(transport, parse_ref_spec(ref_nr, refs), ref_nr); |
632 | } |