commit: add repository argument to lookup_commit_reference_gently
[git/git.git] / builtin / fetch.c
CommitLineData
b888d61c
DB
1/*
2 * "git fetch"
3 */
4#include "cache.h"
b2141fc1 5#include "config.h"
e724197f 6#include "repository.h"
b888d61c 7#include "refs.h"
ec0cb496 8#include "refspec.h"
cbd53a21 9#include "object-store.h"
b888d61c
DB
10#include "commit.h"
11#include "builtin.h"
c455c87c 12#include "string-list.h"
b888d61c
DB
13#include "remote.h"
14#include "transport.h"
4191c356 15#include "run-command.h"
83201998 16#include "parse-options.h"
4a16d072 17#include "sigchain.h"
027771fc 18#include "submodule-config.h"
7dce19d3 19#include "submodule.h"
f96400cb 20#include "connected.h"
85556d4e 21#include "argv-array.h"
6bc91f23 22#include "utf8.h"
3836d88a 23#include "packfile.h"
acb0c572 24#include "list-objects-filter-options.h"
b888d61c 25
83201998 26static const char * const builtin_fetch_usage[] = {
719acedb
NTND
27 N_("git fetch [<options>] [<repository> [<refspec>...]]"),
28 N_("git fetch [<options>] <group>"),
29 N_("git fetch --multiple [<options>] [(<repository> | <group>)...]"),
30 N_("git fetch --all [<options>]"),
83201998
KH
31 NULL
32};
b888d61c 33
83201998
KH
34enum {
35 TAGS_UNSET = 0,
36 TAGS_DEFAULT = 1,
37 TAGS_SET = 2
38};
39
737c5a9c
MS
40static int fetch_prune_config = -1; /* unspecified */
41static int prune = -1; /* unspecified */
42#define PRUNE_BY_DEFAULT 0 /* do we prune by default? */
43
97716d21
ÆAB
44static int fetch_prune_tags_config = -1; /* unspecified */
45static int prune_tags = -1; /* unspecified */
46#define PRUNE_TAGS_BY_DEFAULT 0 /* do we prune tags by default? */
47
cccf74e2 48static int all, append, dry_run, force, keep, multiple, update_head_ok, verbosity, deepen_relative;
8c69832d 49static int progress = -1;
508ea882 50static int tags = TAGS_DEFAULT, unshallow, update_shallow, deepen;
f20e7c1e 51static int max_children = 1;
c915f11e 52static enum transport_family family;
4191c356 53static const char *depth;
508ea882 54static const char *deepen_since;
83201998 55static const char *upload_pack;
a45a2600 56static struct string_list deepen_not = STRING_LIST_INIT_NODUP;
2d324efa 57static struct strbuf default_rla = STRBUF_INIT;
af234459 58static struct transport *gtransport;
b26ed430 59static struct transport *gsecondary;
7dce19d3 60static const char *submodule_prefix = "";
8c69832d 61static int recurse_submodules = RECURSE_SUBMODULES_DEFAULT;
e8906a90 62static int recurse_submodules_default = RECURSE_SUBMODULES_ON_DEMAND;
4b3b33a7 63static int shown_url = 0;
e4cffacc 64static struct refspec refmap = REFSPEC_INIT_FETCH;
acb0c572 65static struct list_objects_filter_options filter_options;
5e3548ef 66static struct string_list server_options = STRING_LIST_INIT_DUP;
e4022ed2 67
737c5a9c
MS
68static int git_fetch_config(const char *k, const char *v, void *cb)
69{
70 if (!strcmp(k, "fetch.prune")) {
71 fetch_prune_config = git_config_bool(k, v);
72 return 0;
73 }
58f4203e 74
97716d21
ÆAB
75 if (!strcmp(k, "fetch.prunetags")) {
76 fetch_prune_tags_config = git_config_bool(k, v);
77 return 0;
78 }
79
58f4203e
SB
80 if (!strcmp(k, "submodule.recurse")) {
81 int r = git_config_bool(k, v) ?
82 RECURSE_SUBMODULES_ON : RECURSE_SUBMODULES_OFF;
83 recurse_submodules = r;
84 }
85
f20e7c1e
BW
86 if (!strcmp(k, "submodule.fetchjobs")) {
87 max_children = parse_submodule_fetchjobs(k, v);
88 return 0;
8fa29159
BW
89 } else if (!strcmp(k, "fetch.recursesubmodules")) {
90 recurse_submodules = parse_fetch_recurse_submodules_arg(k, v);
91 return 0;
f20e7c1e
BW
92 }
93
72549dfd 94 return git_default_config(k, v, cb);
737c5a9c
MS
95}
96
f20e7c1e
BW
97static int gitmodules_fetch_config(const char *var, const char *value, void *cb)
98{
99 if (!strcmp(var, "submodule.fetchjobs")) {
100 max_children = parse_submodule_fetchjobs(var, value);
101 return 0;
8fa29159
BW
102 } else if (!strcmp(var, "fetch.recursesubmodules")) {
103 recurse_submodules = parse_fetch_recurse_submodules_arg(var, value);
104 return 0;
f20e7c1e
BW
105 }
106
107 return 0;
108}
109
c5558f80
JH
110static int parse_refmap_arg(const struct option *opt, const char *arg, int unset)
111{
c5558f80
JH
112 /*
113 * "git fetch --refmap='' origin foo"
114 * can be used to tell the command not to store anywhere
115 */
e4cffacc
BW
116 refspec_append(&refmap, arg);
117
c5558f80
JH
118 return 0;
119}
120
83201998 121static struct option builtin_fetch_options[] = {
7f87aff2 122 OPT__VERBOSITY(&verbosity),
d5d09d47
SB
123 OPT_BOOL(0, "all", &all,
124 N_("fetch from all remotes")),
125 OPT_BOOL('a', "append", &append,
126 N_("append to .git/FETCH_HEAD instead of overwriting")),
719acedb
NTND
127 OPT_STRING(0, "upload-pack", &upload_pack, N_("path"),
128 N_("path to upload pack on remote end")),
1224781d 129 OPT__FORCE(&force, N_("force overwrite of local branch"), 0),
d5d09d47
SB
130 OPT_BOOL('m', "multiple", &multiple,
131 N_("fetch from multiple remotes")),
83201998 132 OPT_SET_INT('t', "tags", &tags,
719acedb 133 N_("fetch all tags and associated objects"), TAGS_SET),
e7951290 134 OPT_SET_INT('n', NULL, &tags,
719acedb 135 N_("do not fetch all tags (--no-tags)"), TAGS_UNSET),
62104ba1
SB
136 OPT_INTEGER('j', "jobs", &max_children,
137 N_("number of submodules fetched in parallel")),
d5d09d47
SB
138 OPT_BOOL('p', "prune", &prune,
139 N_("prune remote-tracking branches no longer on remote")),
97716d21
ÆAB
140 OPT_BOOL('P', "prune-tags", &prune_tags,
141 N_("prune local tags no longer on remote and clobber changed tags")),
886dc154 142 { OPTION_CALLBACK, 0, "recurse-submodules", &recurse_submodules, N_("on-demand"),
719acedb 143 N_("control recursive fetching of submodules"),
886dc154 144 PARSE_OPT_OPTARG, option_fetch_parse_recurse_submodules },
d5d09d47
SB
145 OPT_BOOL(0, "dry-run", &dry_run,
146 N_("dry run")),
147 OPT_BOOL('k', "keep", &keep, N_("keep downloaded pack")),
148 OPT_BOOL('u', "update-head-ok", &update_head_ok,
719acedb
NTND
149 N_("allow updating of HEAD ref")),
150 OPT_BOOL(0, "progress", &progress, N_("force progress reporting")),
151 OPT_STRING(0, "depth", &depth, N_("depth"),
152 N_("deepen history of shallow clone")),
508ea882
NTND
153 OPT_STRING(0, "shallow-since", &deepen_since, N_("time"),
154 N_("deepen history of shallow repository based on time")),
a45a2600 155 OPT_STRING_LIST(0, "shallow-exclude", &deepen_not, N_("revision"),
6d873865 156 N_("deepen history of shallow clone, excluding rev")),
cccf74e2
NTND
157 OPT_INTEGER(0, "deepen", &deepen_relative,
158 N_("deepen history of shallow clone")),
3e4a67b4
NTND
159 OPT_SET_INT_F(0, "unshallow", &unshallow,
160 N_("convert to a complete repository"),
161 1, PARSE_OPT_NONEG),
719acedb
NTND
162 { OPTION_STRING, 0, "submodule-prefix", &submodule_prefix, N_("dir"),
163 N_("prepend this to submodule path output"), PARSE_OPT_HIDDEN },
8c69832d
SB
164 { OPTION_CALLBACK, 0, "recurse-submodules-default",
165 &recurse_submodules_default, N_("on-demand"),
166 N_("default for recursive fetching of submodules "
167 "(lower priority than config files)"),
168 PARSE_OPT_HIDDEN, option_fetch_parse_recurse_submodules },
48d25cae
NTND
169 OPT_BOOL(0, "update-shallow", &update_shallow,
170 N_("accept refs that update .git/shallow")),
c5558f80
JH
171 { OPTION_CALLBACK, 0, "refmap", NULL, N_("refmap"),
172 N_("specify fetch refmap"), PARSE_OPT_NONEG, parse_refmap_arg },
5e3548ef 173 OPT_STRING_LIST('o', "server-option", &server_options, N_("server-specific"), N_("option to transmit")),
c915f11e
EW
174 OPT_SET_INT('4', "ipv4", &family, N_("use IPv4 addresses only"),
175 TRANSPORT_FAMILY_IPV4),
176 OPT_SET_INT('6', "ipv6", &family, N_("use IPv6 addresses only"),
177 TRANSPORT_FAMILY_IPV6),
acb0c572 178 OPT_PARSE_LIST_OBJECTS_FILTER(&filter_options),
83201998
KH
179 OPT_END()
180};
181
e4022ed2
SP
182static void unlock_pack(void)
183{
af234459
JH
184 if (gtransport)
185 transport_unlock_pack(gtransport);
b26ed430
JH
186 if (gsecondary)
187 transport_unlock_pack(gsecondary);
e4022ed2
SP
188}
189
190static void unlock_pack_on_signal(int signo)
191{
192 unlock_pack();
4a16d072 193 sigchain_pop(signo);
e4022ed2
SP
194 raise(signo);
195}
b888d61c 196
85682c19 197static void add_merge_config(struct ref **head,
4577370e 198 const struct ref *remote_refs,
85682c19
SP
199 struct branch *branch,
200 struct ref ***tail)
b888d61c 201{
85682c19 202 int i;
b888d61c 203
85682c19
SP
204 for (i = 0; i < branch->merge_nr; i++) {
205 struct ref *rm, **old_tail = *tail;
0ad4a5ff 206 struct refspec_item refspec;
85682c19
SP
207
208 for (rm = *head; rm; rm = rm->next) {
209 if (branch_merge_matches(branch, i, rm->name)) {
900f2814 210 rm->fetch_head_status = FETCH_HEAD_MERGE;
85682c19
SP
211 break;
212 }
b888d61c 213 }
85682c19
SP
214 if (rm)
215 continue;
216
9ad7c5ae 217 /*
8b3f3f84 218 * Not fetched to a remote-tracking branch? We need to fetch
85682c19 219 * it anyway to allow this branch's "branch.$name.merge"
05207a28 220 * to be honored by 'git pull', but we do not have to
9ad7c5ae
JH
221 * fail if branch.$name.merge is misconfigured to point
222 * at a nonexisting branch. If we were indeed called by
05207a28 223 * 'git pull', it will notice the misconfiguration because
9ad7c5ae
JH
224 * there is no entry in the resulting FETCH_HEAD marked
225 * for merging.
85682c19 226 */
8da61a2a 227 memset(&refspec, 0, sizeof(refspec));
85682c19 228 refspec.src = branch->merge[i]->src;
9ad7c5ae 229 get_fetch_map(remote_refs, &refspec, tail, 1);
85682c19 230 for (rm = *old_tail; rm; rm = rm->next)
900f2814 231 rm->fetch_head_status = FETCH_HEAD_MERGE;
b888d61c
DB
232 }
233}
234
0e0b7de4 235static int add_existing(const char *refname, const struct object_id *oid,
a0fbb5a3
MH
236 int flag, void *cbdata)
237{
238 struct string_list *list = (struct string_list *)cbdata;
239 struct string_list_item *item = string_list_insert(list, refname);
0e0b7de4
MH
240 struct object_id *old_oid = xmalloc(sizeof(*old_oid));
241
242 oidcpy(old_oid, oid);
243 item->util = old_oid;
a0fbb5a3
MH
244 return 0;
245}
246
247static int will_fetch(struct ref **head, const unsigned char *sha1)
248{
249 struct ref *rm = *head;
250 while (rm) {
f4e54d02 251 if (!hashcmp(rm->old_oid.hash, sha1))
a0fbb5a3
MH
252 return 1;
253 rm = rm->next;
254 }
255 return 0;
256}
257
767f176a
SP
258static void find_non_local_tags(struct transport *transport,
259 struct ref **head,
a0fbb5a3
MH
260 struct ref ***tail)
261{
262 struct string_list existing_refs = STRING_LIST_INIT_DUP;
263 struct string_list remote_refs = STRING_LIST_INIT_NODUP;
264 const struct ref *ref;
265 struct string_list_item *item = NULL;
266
0e0b7de4 267 for_each_ref(add_existing, &existing_refs);
1af8ae1c 268 for (ref = transport_get_remote_refs(transport, NULL); ref; ref = ref->next) {
ad704485 269 if (!starts_with(ref->name, "refs/tags/"))
a0fbb5a3
MH
270 continue;
271
272 /*
273 * The peeled ref always follows the matching base
274 * ref, so if we see a peeled ref that we don't want
275 * to fetch then we can mark the ref entry in the list
276 * as one to ignore by setting util to NULL.
277 */
ad704485 278 if (ends_with(ref->name, "^{}")) {
5827a035 279 if (item &&
e83e71c5
JT
280 !has_object_file_with_flags(&ref->old_oid,
281 OBJECT_INFO_QUICK) &&
f4e54d02 282 !will_fetch(head, ref->old_oid.hash) &&
e83e71c5
JT
283 !has_sha1_file_with_flags(item->util,
284 OBJECT_INFO_QUICK) &&
a0fbb5a3
MH
285 !will_fetch(head, item->util))
286 item->util = NULL;
287 item = NULL;
288 continue;
289 }
290
291 /*
292 * If item is non-NULL here, then we previously saw a
293 * ref not followed by a peeled reference, so we need
294 * to check if it is a lightweight tag that we want to
295 * fetch.
296 */
5827a035 297 if (item &&
e83e71c5 298 !has_sha1_file_with_flags(item->util, OBJECT_INFO_QUICK) &&
a0fbb5a3
MH
299 !will_fetch(head, item->util))
300 item->util = NULL;
301
302 item = NULL;
303
304 /* skip duplicates and refs that we already have */
305 if (string_list_has_string(&remote_refs, ref->name) ||
306 string_list_has_string(&existing_refs, ref->name))
307 continue;
308
309 item = string_list_insert(&remote_refs, ref->name);
f4e54d02 310 item->util = (void *)&ref->old_oid;
a0fbb5a3
MH
311 }
312 string_list_clear(&existing_refs, 1);
313
314 /*
315 * We may have a final lightweight tag that needs to be
316 * checked to see if it needs fetching.
317 */
5827a035 318 if (item &&
e83e71c5 319 !has_sha1_file_with_flags(item->util, OBJECT_INFO_QUICK) &&
a0fbb5a3
MH
320 !will_fetch(head, item->util))
321 item->util = NULL;
322
323 /*
324 * For all the tags in the remote_refs string list,
325 * add them to the list of refs to be fetched
326 */
327 for_each_string_list_item(item, &remote_refs) {
328 /* Unless we have already decided to ignore this item... */
329 if (item->util)
330 {
331 struct ref *rm = alloc_ref(item->string);
332 rm->peer_ref = alloc_ref(item->string);
f4e54d02 333 oidcpy(&rm->old_oid, item->util);
a0fbb5a3
MH
334 **tail = rm;
335 *tail = &rm->next;
336 }
337 }
338
339 string_list_clear(&remote_refs, 0);
340}
767f176a 341
b888d61c 342static struct ref *get_ref_map(struct transport *transport,
65d96c8b 343 struct refspec *rs,
f137a45e 344 int tags, int *autotags)
b888d61c
DB
345{
346 int i;
347 struct ref *rm;
348 struct ref *ref_map = NULL;
349 struct ref **tail = &ref_map;
230d7dd3 350 struct argv_array ref_prefixes = ARGV_ARRAY_INIT;
b888d61c 351
c5a84e92
MH
352 /* opportunistically-updated references: */
353 struct ref *orefs = NULL, **oref_tail = &orefs;
b888d61c 354
230d7dd3
BW
355 const struct ref *remote_refs;
356
dcc73cf7
BW
357 if (rs->nr)
358 refspec_ref_prefixes(rs, &ref_prefixes);
359 else if (transport->remote && transport->remote->fetch.nr)
360 refspec_ref_prefixes(&transport->remote->fetch, &ref_prefixes);
361
362 if (ref_prefixes.argc &&
363 (tags == TAGS_SET || (tags == TAGS_DEFAULT && !rs->nr))) {
364 argv_array_push(&ref_prefixes, "refs/tags/");
230d7dd3
BW
365 }
366
367 remote_refs = transport_get_remote_refs(transport, &ref_prefixes);
368
369 argv_array_clear(&ref_prefixes);
f2690487 370
65d96c8b 371 if (rs->nr) {
c5558f80 372 struct refspec *fetch_refspec;
c5558f80 373
65d96c8b
BW
374 for (i = 0; i < rs->nr; i++) {
375 get_fetch_map(remote_refs, &rs->items[i], &tail, 0);
376 if (rs->items[i].dst && rs->items[i].dst[0])
b888d61c
DB
377 *autotags = 1;
378 }
0281c930 379 /* Merge everything on the command line (but not --tags) */
b888d61c 380 for (rm = ref_map; rm; rm = rm->next)
900f2814 381 rm->fetch_head_status = FETCH_HEAD_MERGE;
f2690487
JK
382
383 /*
0281c930
MH
384 * For any refs that we happen to be fetching via
385 * command-line arguments, the destination ref might
386 * have been missing or have been different than the
387 * remote-tracking ref that would be derived from the
388 * configured refspec. In these cases, we want to
389 * take the opportunity to update their configured
390 * remote-tracking reference. However, we do not want
391 * to mention these entries in FETCH_HEAD at all, as
392 * they would simply be duplicates of existing
393 * entries, so we set them FETCH_HEAD_IGNORE below.
394 *
395 * We compute these entries now, based only on the
396 * refspecs specified on the command line. But we add
397 * them to the list following the refspecs resulting
398 * from the tags option so that one of the latter,
399 * which has FETCH_HEAD_NOT_FOR_MERGE, is not removed
400 * by ref_remove_duplicates() in favor of one of these
401 * opportunistic entries with FETCH_HEAD_IGNORE.
f2690487 402 */
65d96c8b
BW
403 if (refmap.nr)
404 fetch_refspec = &refmap;
405 else
406 fetch_refspec = &transport->remote->fetch;
c5558f80 407
65d96c8b
BW
408 for (i = 0; i < fetch_refspec->nr; i++)
409 get_fetch_map(ref_map, &fetch_refspec->items[i], &oref_tail, 1);
e4cffacc 410 } else if (refmap.nr) {
c5558f80 411 die("--refmap option is only meaningful with command-line refspec(s).");
b888d61c
DB
412 } else {
413 /* Use the defaults */
414 struct remote *remote = transport->remote;
85682c19
SP
415 struct branch *branch = branch_get(NULL);
416 int has_merge = branch_has_merge_config(branch);
3ee1757b 417 if (remote &&
e5349abf 418 (remote->fetch.nr ||
f31dbdc7 419 /* Note: has_merge implies non-NULL branch->remote_name */
3ee1757b 420 (has_merge && !strcmp(branch->remote_name, remote->name)))) {
e5349abf
BW
421 for (i = 0; i < remote->fetch.nr; i++) {
422 get_fetch_map(remote_refs, &remote->fetch.items[i], &tail, 0);
423 if (remote->fetch.items[i].dst &&
424 remote->fetch.items[i].dst[0])
b888d61c 425 *autotags = 1;
85682c19 426 if (!i && !has_merge && ref_map &&
e5349abf 427 !remote->fetch.items[0].pattern)
900f2814 428 ref_map->fetch_head_status = FETCH_HEAD_MERGE;
b888d61c 429 }
da0204df
JS
430 /*
431 * if the remote we're fetching from is the same
432 * as given in branch.<name>.remote, we add the
433 * ref given in branch.<name>.merge, too.
f31dbdc7
BC
434 *
435 * Note: has_merge implies non-NULL branch->remote_name
da0204df 436 */
9ad7c5ae
JH
437 if (has_merge &&
438 !strcmp(branch->remote_name, remote->name))
85682c19 439 add_merge_config(&ref_map, remote_refs, branch, &tail);
b888d61c
DB
440 } else {
441 ref_map = get_remote_ref(remote_refs, "HEAD");
9ad7c5ae 442 if (!ref_map)
bd4a51fc 443 die(_("Couldn't find remote ref HEAD"));
900f2814 444 ref_map->fetch_head_status = FETCH_HEAD_MERGE;
5aaf7f2a 445 tail = &ref_map->next;
b888d61c
DB
446 }
447 }
0281c930 448
c5a84e92
MH
449 if (tags == TAGS_SET)
450 /* also fetch all tags */
451 get_fetch_map(remote_refs, tag_refspec, &tail, 0);
452 else if (tags == TAGS_DEFAULT && *autotags)
767f176a 453 find_non_local_tags(transport, &ref_map, &tail);
0281c930 454
c5a84e92
MH
455 /* Now append any refs to be updated opportunistically: */
456 *tail = orefs;
457 for (rm = orefs; rm; rm = rm->next) {
458 rm->fetch_head_status = FETCH_HEAD_IGNORE;
459 tail = &rm->next;
460 }
461
b9afe665 462 return ref_remove_duplicates(ref_map);
b888d61c
DB
463}
464
fa250759
JK
465#define STORE_REF_ERROR_OTHER 1
466#define STORE_REF_ERROR_DF_CONFLICT 2
467
b888d61c
DB
468static int s_update_ref(const char *action,
469 struct ref *ref,
470 int check_old)
471{
1412f762 472 char *msg;
b888d61c 473 char *rla = getenv("GIT_REFLOG_ACTION");
cd94f765
RS
474 struct ref_transaction *transaction;
475 struct strbuf err = STRBUF_INIT;
476 int ret, df_conflict = 0;
b888d61c 477
28a15401
JS
478 if (dry_run)
479 return 0;
b888d61c 480 if (!rla)
2d324efa 481 rla = default_rla.buf;
1412f762 482 msg = xstrfmt("%s: %s", rla, action);
cd94f765
RS
483
484 transaction = ref_transaction_begin(&err);
485 if (!transaction ||
1d147bdf 486 ref_transaction_update(transaction, ref->name,
89f3bbdd 487 &ref->new_oid,
488 check_old ? &ref->old_oid : NULL,
1d147bdf 489 0, msg, &err))
cd94f765
RS
490 goto fail;
491
492 ret = ref_transaction_commit(transaction, &err);
493 if (ret) {
494 df_conflict = (ret == TRANSACTION_NAME_CONFLICT);
495 goto fail;
496 }
497
498 ref_transaction_free(transaction);
499 strbuf_release(&err);
1412f762 500 free(msg);
b888d61c 501 return 0;
cd94f765
RS
502fail:
503 ref_transaction_free(transaction);
504 error("%s", err.buf);
505 strbuf_release(&err);
1412f762 506 free(msg);
cd94f765
RS
507 return df_conflict ? STORE_REF_ERROR_DF_CONFLICT
508 : STORE_REF_ERROR_OTHER;
b888d61c
DB
509}
510
6bc91f23 511static int refcol_width = 10;
bc437d10 512static int compact_format;
6bc91f23
NTND
513
514static void adjust_refcol_width(const struct ref *ref)
515{
516 int max, rlen, llen, len;
517
518 /* uptodate lines are only shown on high verbosity level */
519 if (!verbosity && !oidcmp(&ref->peer_ref->old_oid, &ref->old_oid))
520 return;
521
522 max = term_columns();
523 rlen = utf8_strwidth(prettify_refname(ref->name));
bc437d10 524
6bc91f23
NTND
525 llen = utf8_strwidth(prettify_refname(ref->peer_ref->name));
526
527 /*
528 * rough estimation to see if the output line is too long and
529 * should not be counted (we can't do precise calculation
530 * anyway because we don't know if the error explanation part
531 * will be printed in update_local_ref)
532 */
bc437d10
NTND
533 if (compact_format) {
534 llen = 0;
535 max = max * 2 / 3;
536 }
6bc91f23
NTND
537 len = 21 /* flag and summary */ + rlen + 4 /* -> */ + llen;
538 if (len >= max)
539 return;
540
bc437d10
NTND
541 /*
542 * Not precise calculation for compact mode because '*' can
543 * appear on the left hand side of '->' and shrink the column
544 * back.
545 */
6bc91f23
NTND
546 if (refcol_width < rlen)
547 refcol_width = rlen;
548}
549
550static void prepare_format_display(struct ref *ref_map)
551{
552 struct ref *rm;
bc437d10
NTND
553 const char *format = "full";
554
555 git_config_get_string_const("fetch.output", &format);
556 if (!strcasecmp(format, "full"))
557 compact_format = 0;
558 else if (!strcasecmp(format, "compact"))
559 compact_format = 1;
560 else
561 die(_("configuration fetch.output contains invalid value %s"),
562 format);
6bc91f23
NTND
563
564 for (rm = ref_map; rm; rm = rm->next) {
565 if (rm->status == REF_STATUS_REJECT_SHALLOW ||
566 !rm->peer_ref ||
567 !strcmp(rm->name, "HEAD"))
568 continue;
569
570 adjust_refcol_width(rm);
571 }
572}
165f3902 573
bc437d10
NTND
574static void print_remote_to_local(struct strbuf *display,
575 const char *remote, const char *local)
576{
577 strbuf_addf(display, "%-*s -> %s", refcol_width, remote, local);
578}
579
580static int find_and_replace(struct strbuf *haystack,
581 const char *needle,
582 const char *placeholder)
583{
584 const char *p = strstr(haystack->buf, needle);
585 int plen, nlen;
586
587 if (!p)
588 return 0;
589
590 if (p > haystack->buf && p[-1] != '/')
591 return 0;
592
593 plen = strlen(p);
594 nlen = strlen(needle);
595 if (plen > nlen && p[nlen] != '/')
596 return 0;
597
598 strbuf_splice(haystack, p - haystack->buf, nlen,
599 placeholder, strlen(placeholder));
600 return 1;
601}
602
603static void print_compact(struct strbuf *display,
604 const char *remote, const char *local)
605{
606 struct strbuf r = STRBUF_INIT;
607 struct strbuf l = STRBUF_INIT;
608
609 if (!strcmp(remote, local)) {
610 strbuf_addf(display, "%-*s -> *", refcol_width, remote);
611 return;
612 }
613
614 strbuf_addstr(&r, remote);
615 strbuf_addstr(&l, local);
616
617 if (!find_and_replace(&r, local, "*"))
618 find_and_replace(&l, remote, "*");
619 print_remote_to_local(display, r.buf, l.buf);
620
621 strbuf_release(&r);
622 strbuf_release(&l);
623}
624
d0b39a03
NTND
625static void format_display(struct strbuf *display, char code,
626 const char *summary, const char *error,
901f3d40
JH
627 const char *remote, const char *local,
628 int summary_width)
d0b39a03 629{
901f3d40
JH
630 int width = (summary_width + strlen(summary) - gettext_width(summary));
631
632 strbuf_addf(display, "%c %-*s ", code, width, summary);
bc437d10
NTND
633 if (!compact_format)
634 print_remote_to_local(display, remote, local);
635 else
636 print_compact(display, remote, local);
d0b39a03
NTND
637 if (error)
638 strbuf_addf(display, " (%s)", error);
639}
165f3902 640
b888d61c 641static int update_local_ref(struct ref *ref,
165f3902 642 const char *remote,
6da618d5 643 const struct ref *remote_ref,
901f3d40
JH
644 struct strbuf *display,
645 int summary_width)
b888d61c 646{
b888d61c
DB
647 struct commit *current = NULL, *updated;
648 enum object_type type;
649 struct branch *current_branch = branch_get(NULL);
4577e483 650 const char *pretty_ref = prettify_refname(ref->name);
b888d61c 651
0df8e965 652 type = oid_object_info(the_repository, &ref->new_oid, NULL);
b888d61c 653 if (type < 0)
f4e54d02 654 die(_("object %s not found"), oid_to_hex(&ref->new_oid));
b888d61c 655
f4e54d02 656 if (!oidcmp(&ref->old_oid, &ref->new_oid)) {
7f87aff2 657 if (verbosity > 0)
d0b39a03 658 format_display(display, '=', _("[up to date]"), NULL,
901f3d40 659 remote, pretty_ref, summary_width);
b888d61c
DB
660 return 0;
661 }
662
b3abdd9d
SP
663 if (current_branch &&
664 !strcmp(ref->name, current_branch->name) &&
b888d61c 665 !(update_head_ok || is_bare_repository()) &&
f4e54d02 666 !is_null_oid(&ref->old_oid)) {
b888d61c
DB
667 /*
668 * If this is the head, and it's not okay to update
669 * the head, and the old value of the head isn't empty...
670 */
d0b39a03
NTND
671 format_display(display, '!', _("[rejected]"),
672 _("can't fetch in current branch"),
901f3d40 673 remote, pretty_ref, summary_width);
b888d61c
DB
674 return 1;
675 }
676
f4e54d02 677 if (!is_null_oid(&ref->old_oid) &&
59556548 678 starts_with(ref->name, "refs/tags/")) {
6315472e
JK
679 int r;
680 r = s_update_ref("updating tag", ref, 0);
2cb040ba 681 format_display(display, r ? '!' : 't', _("[tag update]"),
d0b39a03 682 r ? _("unable to update local ref") : NULL,
901f3d40 683 remote, pretty_ref, summary_width);
6315472e 684 return r;
b888d61c
DB
685 }
686
21e1ee8f
SB
687 current = lookup_commit_reference_gently(the_repository,
688 &ref->old_oid, 1);
689 updated = lookup_commit_reference_gently(the_repository,
690 &ref->new_oid, 1);
b888d61c 691 if (!current || !updated) {
165f3902
NP
692 const char *msg;
693 const char *what;
6315472e 694 int r;
0997adaa
MB
695 /*
696 * Nicely describe the new ref we're fetching.
697 * Base this on the remote's ref name, as it's
698 * more likely to follow a standard layout.
699 */
700 const char *name = remote_ref ? remote_ref->name : "";
59556548 701 if (starts_with(name, "refs/tags/")) {
b888d61c 702 msg = "storing tag";
f7b3742a 703 what = _("[new tag]");
59556548 704 } else if (starts_with(name, "refs/heads/")) {
b888d61c 705 msg = "storing head";
f7b3742a 706 what = _("[new branch]");
0997adaa
MB
707 } else {
708 msg = "storing ref";
709 what = _("[new ref]");
165f3902
NP
710 }
711
a6801adc
JL
712 if ((recurse_submodules != RECURSE_SUBMODULES_OFF) &&
713 (recurse_submodules != RECURSE_SUBMODULES_ON))
2eb80bcd 714 check_for_new_submodule_commits(&ref->new_oid);
6315472e 715 r = s_update_ref(msg, ref, 0);
d0b39a03
NTND
716 format_display(display, r ? '!' : '*', what,
717 r ? _("unable to update local ref") : NULL,
901f3d40 718 remote, pretty_ref, summary_width);
6315472e 719 return r;
b888d61c
DB
720 }
721
a20efee9 722 if (in_merge_bases(current, updated)) {
bd22d4ff 723 struct strbuf quickref = STRBUF_INIT;
6315472e 724 int r;
30e677e0 725 strbuf_add_unique_abbrev(&quickref, &current->object.oid, DEFAULT_ABBREV);
bd22d4ff 726 strbuf_addstr(&quickref, "..");
30e677e0 727 strbuf_add_unique_abbrev(&quickref, &ref->new_oid, DEFAULT_ABBREV);
88a21979
JL
728 if ((recurse_submodules != RECURSE_SUBMODULES_OFF) &&
729 (recurse_submodules != RECURSE_SUBMODULES_ON))
2eb80bcd 730 check_for_new_submodule_commits(&ref->new_oid);
a75d7b54 731 r = s_update_ref("fast-forward", ref, 1);
d0b39a03
NTND
732 format_display(display, r ? '!' : ' ', quickref.buf,
733 r ? _("unable to update local ref") : NULL,
901f3d40 734 remote, pretty_ref, summary_width);
bd22d4ff 735 strbuf_release(&quickref);
6315472e 736 return r;
165f3902 737 } else if (force || ref->force) {
bd22d4ff 738 struct strbuf quickref = STRBUF_INIT;
6315472e 739 int r;
30e677e0 740 strbuf_add_unique_abbrev(&quickref, &current->object.oid, DEFAULT_ABBREV);
bd22d4ff 741 strbuf_addstr(&quickref, "...");
30e677e0 742 strbuf_add_unique_abbrev(&quickref, &ref->new_oid, DEFAULT_ABBREV);
88a21979
JL
743 if ((recurse_submodules != RECURSE_SUBMODULES_OFF) &&
744 (recurse_submodules != RECURSE_SUBMODULES_ON))
2eb80bcd 745 check_for_new_submodule_commits(&ref->new_oid);
6315472e 746 r = s_update_ref("forced-update", ref, 1);
d0b39a03
NTND
747 format_display(display, r ? '!' : '+', quickref.buf,
748 r ? _("unable to update local ref") : _("forced update"),
901f3d40 749 remote, pretty_ref, summary_width);
bd22d4ff 750 strbuf_release(&quickref);
6315472e 751 return r;
165f3902 752 } else {
d0b39a03 753 format_display(display, '!', _("[rejected]"), _("non-fast-forward"),
901f3d40 754 remote, pretty_ref, summary_width);
b888d61c
DB
755 return 1;
756 }
b888d61c
DB
757}
758
6ccac9ee 759static int iterate_ref_map(void *cb_data, struct object_id *oid)
6b67e0dc 760{
f0e278b1
JH
761 struct ref **rm = cb_data;
762 struct ref *ref = *rm;
6b67e0dc 763
4820a33b
NTND
764 while (ref && ref->status == REF_STATUS_REJECT_SHALLOW)
765 ref = ref->next;
f0e278b1
JH
766 if (!ref)
767 return -1; /* end of the list */
768 *rm = ref->next;
6ccac9ee 769 oidcpy(oid, &ref->old_oid);
f0e278b1 770 return 0;
6b67e0dc
JH
771}
772
47abd85b 773static int store_updated_refs(const char *raw_url, const char *remote_name,
f3cb169b 774 struct ref *ref_map)
b888d61c
DB
775{
776 FILE *fp;
777 struct commit *commit;
4b3b33a7 778 int url_len, i, rc = 0;
5914f2d0 779 struct strbuf note = STRBUF_INIT;
b888d61c
DB
780 const char *what, *kind;
781 struct ref *rm;
dcf69262 782 char *url;
102de880 783 const char *filename = dry_run ? "/dev/null" : git_path_fetch_head(the_repository);
900f2814 784 int want_status;
11fd66de 785 int summary_width = transport_summary_width(ref_map);
b888d61c 786
d6617c7c
AGR
787 fp = fopen(filename, "a");
788 if (!fp)
6da31d7f 789 return error_errno(_("cannot open %s"), filename);
47abd85b 790
fb0cc87e
DB
791 if (raw_url)
792 url = transport_anonymize_url(raw_url);
793 else
794 url = xstrdup("foreign");
6b67e0dc 795
f0e278b1 796 rm = ref_map;
7043c707 797 if (check_connected(iterate_ref_map, &rm, NULL)) {
9516a598
TRC
798 rc = error(_("%s did not send all necessary objects\n"), url);
799 goto abort;
800 }
6b67e0dc 801
6bc91f23
NTND
802 prepare_format_display(ref_map);
803
96890f4c 804 /*
900f2814
JK
805 * We do a pass for each fetch_head_status type in their enum order, so
806 * merged entries are written before not-for-merge. That lets readers
807 * use FETCH_HEAD as a refname to refer to the ref to be merged.
96890f4c 808 */
900f2814
JK
809 for (want_status = FETCH_HEAD_MERGE;
810 want_status <= FETCH_HEAD_IGNORE;
811 want_status++) {
96890f4c
JH
812 for (rm = ref_map; rm; rm = rm->next) {
813 struct ref *ref = NULL;
900f2814 814 const char *merge_status_marker = "";
96890f4c 815
4820a33b
NTND
816 if (rm->status == REF_STATUS_REJECT_SHALLOW) {
817 if (want_status == FETCH_HEAD_MERGE)
818 warning(_("reject %s because shallow roots are not allowed to be updated"),
819 rm->peer_ref ? rm->peer_ref->name : rm->name);
820 continue;
821 }
822
21e1ee8f
SB
823 commit = lookup_commit_reference_gently(the_repository,
824 &rm->old_oid,
bc83266a 825 1);
96890f4c 826 if (!commit)
900f2814 827 rm->fetch_head_status = FETCH_HEAD_NOT_FOR_MERGE;
96890f4c 828
900f2814 829 if (rm->fetch_head_status != want_status)
96890f4c
JH
830 continue;
831
832 if (rm->peer_ref) {
6f687c21 833 ref = alloc_ref(rm->peer_ref->name);
f4e54d02 834 oidcpy(&ref->old_oid, &rm->peer_ref->old_oid);
835 oidcpy(&ref->new_oid, &rm->old_oid);
96890f4c
JH
836 ref->force = rm->peer_ref->force;
837 }
b888d61c 838
b888d61c 839
96890f4c
JH
840 if (!strcmp(rm->name, "HEAD")) {
841 kind = "";
842 what = "";
843 }
59556548 844 else if (starts_with(rm->name, "refs/heads/")) {
96890f4c
JH
845 kind = "branch";
846 what = rm->name + 11;
847 }
59556548 848 else if (starts_with(rm->name, "refs/tags/")) {
96890f4c
JH
849 kind = "tag";
850 what = rm->name + 10;
851 }
59556548 852 else if (starts_with(rm->name, "refs/remotes/")) {
96890f4c
JH
853 kind = "remote-tracking branch";
854 what = rm->name + 13;
855 }
856 else {
857 kind = "";
858 what = rm->name;
859 }
b888d61c 860
96890f4c
JH
861 url_len = strlen(url);
862 for (i = url_len - 1; url[i] == '/' && 0 <= i; i--)
863 ;
864 url_len = i + 1;
865 if (4 < i && !strncmp(".git", url + i - 3, 4))
866 url_len = i - 3;
867
868 strbuf_reset(&note);
869 if (*what) {
870 if (*kind)
871 strbuf_addf(&note, "%s ", kind);
872 strbuf_addf(&note, "'%s' of ", what);
873 }
900f2814
JK
874 switch (rm->fetch_head_status) {
875 case FETCH_HEAD_NOT_FOR_MERGE:
876 merge_status_marker = "not-for-merge";
877 /* fall-through */
878 case FETCH_HEAD_MERGE:
879 fprintf(fp, "%s\t%s\t%s",
f4e54d02 880 oid_to_hex(&rm->old_oid),
900f2814
JK
881 merge_status_marker,
882 note.buf);
883 for (i = 0; i < url_len; ++i)
884 if ('\n' == url[i])
885 fputs("\\n", fp);
886 else
887 fputc(url[i], fp);
888 fputc('\n', fp);
889 break;
890 default:
891 /* do not write anything to FETCH_HEAD */
892 break;
893 }
96890f4c
JH
894
895 strbuf_reset(&note);
896 if (ref) {
901f3d40
JH
897 rc |= update_local_ref(ref, what, rm, &note,
898 summary_width);
96890f4c
JH
899 free(ref);
900 } else
d0b39a03
NTND
901 format_display(&note, '*',
902 *kind ? kind : "branch", NULL,
903 *what ? what : "HEAD",
901f3d40 904 "FETCH_HEAD", summary_width);
96890f4c
JH
905 if (note.len) {
906 if (verbosity >= 0 && !shown_url) {
907 fprintf(stderr, _("From %.*s\n"),
908 url_len, url);
909 shown_url = 1;
910 }
911 if (verbosity >= 0)
912 fprintf(stderr, " %s\n", note.buf);
165f3902
NP
913 }
914 }
b888d61c 915 }
9516a598 916
fa250759 917 if (rc & STORE_REF_ERROR_DF_CONFLICT)
bd4a51fc 918 error(_("some local refs could not be updated; try running\n"
f3cb169b 919 " 'git remote prune %s' to remove any old, conflicting "
bd4a51fc 920 "branches"), remote_name);
9516a598
TRC
921
922 abort:
5914f2d0 923 strbuf_release(&note);
9516a598
TRC
924 free(url);
925 fclose(fp);
efb98b44 926 return rc;
b888d61c
DB
927}
928
4191c356
SP
929/*
930 * We would want to bypass the object transfer altogether if
d9eb0205 931 * everything we are going to fetch already exists and is connected
4191c356 932 * locally.
4191c356
SP
933 */
934static int quickfetch(struct ref *ref_map)
935{
f0e278b1 936 struct ref *rm = ref_map;
7043c707 937 struct check_connected_options opt = CHECK_CONNECTED_INIT;
f0e278b1 938
4191c356
SP
939 /*
940 * If we are deepening a shallow clone we already have these
941 * objects reachable. Running rev-list here will return with
942 * a good (0) exit status and we'll bypass the fetch that we
943 * really need to perform. Claiming failure now will ensure
944 * we perform the network exchange to deepen our history.
945 */
508ea882 946 if (deepen)
4191c356 947 return -1;
7043c707
JK
948 opt.quiet = 1;
949 return check_connected(iterate_ref_map, &rm, &opt);
4191c356
SP
950}
951
b888d61c
DB
952static int fetch_refs(struct transport *transport, struct ref *ref_map)
953{
4191c356
SP
954 int ret = quickfetch(ref_map);
955 if (ret)
956 ret = transport_fetch_refs(transport, ref_map);
b888d61c 957 if (!ret)
f3cb169b
JK
958 ret |= store_updated_refs(transport->url,
959 transport->remote->name,
960 ref_map);
1788c39c 961 transport_unlock_pack(transport);
b888d61c
DB
962 return ret;
963}
964
def11e71
BW
965static int prune_refs(struct refspec *rs, struct ref *ref_map,
966 const char *raw_url)
f360d844 967{
4b3b33a7 968 int url_len, i, result = 0;
a2ac50cb 969 struct ref *ref, *stale_refs = get_stale_heads(rs, ref_map);
4b3b33a7 970 char *url;
11fd66de 971 int summary_width = transport_summary_width(stale_refs);
f360d844 972 const char *dangling_msg = dry_run
18986d53
NTND
973 ? _(" (%s will become dangling)")
974 : _(" (%s has become dangling)");
f360d844 975
4b3b33a7
TM
976 if (raw_url)
977 url = transport_anonymize_url(raw_url);
978 else
979 url = xstrdup("foreign");
980
981 url_len = strlen(url);
982 for (i = url_len - 1; url[i] == '/' && 0 <= i; i--)
983 ;
984
985 url_len = i + 1;
986 if (4 < i && !strncmp(".git", url + i - 3, 4))
987 url_len = i - 3;
988
a087b432
MH
989 if (!dry_run) {
990 struct string_list refnames = STRING_LIST_INIT_NODUP;
991
992 for (ref = stale_refs; ref; ref = ref->next)
993 string_list_append(&refnames, ref->name);
994
64da4199 995 result = delete_refs("fetch: prune", &refnames, 0);
a087b432
MH
996 string_list_clear(&refnames, 0);
997 }
998
999 if (verbosity >= 0) {
1000 for (ref = stale_refs; ref; ref = ref->next) {
d0b39a03 1001 struct strbuf sb = STRBUF_INIT;
a087b432
MH
1002 if (!shown_url) {
1003 fprintf(stderr, _("From %.*s\n"), url_len, url);
1004 shown_url = 1;
1005 }
2cb040ba 1006 format_display(&sb, '-', _("[deleted]"), NULL,
901f3d40
JH
1007 _("(none)"), prettify_refname(ref->name),
1008 summary_width);
d0b39a03
NTND
1009 fprintf(stderr, " %s\n",sb.buf);
1010 strbuf_release(&sb);
f360d844
JS
1011 warn_dangling_symref(stderr, dangling_msg, ref->name);
1012 }
1013 }
a087b432 1014
4b3b33a7 1015 free(url);
f360d844
JS
1016 free_refs(stale_refs);
1017 return result;
1018}
1019
8ee5d731
JS
1020static void check_not_current_branch(struct ref *ref_map)
1021{
1022 struct branch *current_branch = branch_get(NULL);
1023
1024 if (is_bare_repository() || !current_branch)
1025 return;
1026
1027 for (; ref_map; ref_map = ref_map->next)
1028 if (ref_map->peer_ref && !strcmp(current_branch->refname,
1029 ref_map->peer_ref->name))
bd4a51fc
ÆAB
1030 die(_("Refusing to fetch into current branch %s "
1031 "of non-bare repository"), current_branch->refname);
8ee5d731
JS
1032}
1033
e6cc5104
JH
1034static int truncate_fetch_head(void)
1035{
102de880 1036 const char *filename = git_path_fetch_head(the_repository);
ea56518d 1037 FILE *fp = fopen_for_writing(filename);
e6cc5104
JH
1038
1039 if (!fp)
6da31d7f 1040 return error_errno(_("cannot open %s"), filename);
e6cc5104
JH
1041 fclose(fp);
1042 return 0;
1043}
1044
db5723c6
JH
1045static void set_option(struct transport *transport, const char *name, const char *value)
1046{
1047 int r = transport_set_option(transport, name, value);
1048 if (r < 0)
1049 die(_("Option \"%s\" value \"%s\" is not valid for %s"),
1050 name, value, transport->url);
1051 if (r > 0)
1052 warning(_("Option \"%s\" is ignored for %s\n"),
1053 name, transport->url);
1054}
1055
508ea882 1056static struct transport *prepare_transport(struct remote *remote, int deepen)
db5723c6
JH
1057{
1058 struct transport *transport;
1059 transport = transport_get(remote, NULL);
1060 transport_set_verbosity(transport, verbosity, progress);
c915f11e 1061 transport->family = family;
db5723c6
JH
1062 if (upload_pack)
1063 set_option(transport, TRANS_OPT_UPLOADPACK, upload_pack);
1064 if (keep)
1065 set_option(transport, TRANS_OPT_KEEP, "yes");
1066 if (depth)
1067 set_option(transport, TRANS_OPT_DEPTH, depth);
508ea882
NTND
1068 if (deepen && deepen_since)
1069 set_option(transport, TRANS_OPT_DEEPEN_SINCE, deepen_since);
a45a2600
NTND
1070 if (deepen && deepen_not.nr)
1071 set_option(transport, TRANS_OPT_DEEPEN_NOT,
1072 (const char *)&deepen_not);
cccf74e2
NTND
1073 if (deepen_relative)
1074 set_option(transport, TRANS_OPT_DEEPEN_RELATIVE, "yes");
48d25cae
NTND
1075 if (update_shallow)
1076 set_option(transport, TRANS_OPT_UPDATE_SHALLOW, "yes");
acb0c572
JH
1077 if (filter_options.choice) {
1078 set_option(transport, TRANS_OPT_LIST_OBJECTS_FILTER,
1079 filter_options.filter_spec);
1080 set_option(transport, TRANS_OPT_FROM_PROMISOR, "1");
1081 }
db5723c6
JH
1082 return transport;
1083}
1084
069d5032
JH
1085static void backfill_tags(struct transport *transport, struct ref *ref_map)
1086{
508ea882
NTND
1087 int cannot_reuse;
1088
1089 /*
1090 * Once we have set TRANS_OPT_DEEPEN_SINCE, we can't unset it
1091 * when remote helper is used (setting it to an empty string
1092 * is not unsetting). We could extend the remote helper
1093 * protocol for that, but for now, just force a new connection
a45a2600 1094 * without deepen-since. Similar story for deepen-not.
508ea882 1095 */
a45a2600
NTND
1096 cannot_reuse = transport->cannot_reuse ||
1097 deepen_since || deepen_not.nr;
508ea882
NTND
1098 if (cannot_reuse) {
1099 gsecondary = prepare_transport(transport->remote, 0);
b26ed430
JH
1100 transport = gsecondary;
1101 }
1102
069d5032
JH
1103 transport_set_option(transport, TRANS_OPT_FOLLOWTAGS, NULL);
1104 transport_set_option(transport, TRANS_OPT_DEPTH, "0");
cccf74e2 1105 transport_set_option(transport, TRANS_OPT_DEEPEN_RELATIVE, NULL);
069d5032 1106 fetch_refs(transport, ref_map);
b26ed430
JH
1107
1108 if (gsecondary) {
1109 transport_disconnect(gsecondary);
1110 gsecondary = NULL;
1111 }
069d5032
JH
1112}
1113
b888d61c 1114static int do_fetch(struct transport *transport,
65a1301f 1115 struct refspec *rs)
b888d61c 1116{
b87dbcc8 1117 struct string_list existing_refs = STRING_LIST_INIT_DUP;
7f98428d 1118 struct ref *ref_map;
b888d61c
DB
1119 struct ref *rm;
1120 int autotags = (transport->remote->fetch_tags == 1);
5b87d8d3 1121 int retcode = 0;
b1a01e1c 1122
0e0b7de4 1123 for_each_ref(add_existing, &existing_refs);
b1a01e1c 1124
ed368546
DJ
1125 if (tags == TAGS_DEFAULT) {
1126 if (transport->remote->fetch_tags == 2)
1127 tags = TAGS_SET;
1128 if (transport->remote->fetch_tags == -1)
1129 tags = TAGS_UNSET;
1130 }
b888d61c 1131
b888d61c 1132 /* if not appending, truncate FETCH_HEAD */
28a15401 1133 if (!append && !dry_run) {
5b87d8d3
MH
1134 retcode = truncate_fetch_head();
1135 if (retcode)
1136 goto cleanup;
d6617c7c 1137 }
b888d61c 1138
65d96c8b 1139 ref_map = get_ref_map(transport, rs, tags, &autotags);
8ee5d731
JS
1140 if (!update_head_ok)
1141 check_not_current_branch(ref_map);
b888d61c
DB
1142
1143 for (rm = ref_map; rm; rm = rm->next) {
b1a01e1c 1144 if (rm->peer_ref) {
6f64a16f
MH
1145 struct string_list_item *peer_item =
1146 string_list_lookup(&existing_refs,
1147 rm->peer_ref->name);
0e0b7de4
MH
1148 if (peer_item) {
1149 struct object_id *old_oid = peer_item->util;
f4e54d02 1150 oidcpy(&rm->peer_ref->old_oid, old_oid);
0e0b7de4 1151 }
b1a01e1c 1152 }
b888d61c
DB
1153 }
1154
41fa7d2e
SP
1155 if (tags == TAGS_DEFAULT && autotags)
1156 transport_set_option(transport, TRANS_OPT_FOLLOWTAGS, "1");
ed43de6e 1157 if (prune) {
0838bf47
MH
1158 /*
1159 * We only prune based on refspecs specified
1160 * explicitly (via command line or configuration); we
1161 * don't care whether --tags was specified.
1162 */
65a1301f 1163 if (rs->nr) {
def11e71 1164 prune_refs(rs, ref_map, transport->url);
e8c1e6c7 1165 } else {
def11e71 1166 prune_refs(&transport->remote->fetch,
4b3b33a7
TM
1167 ref_map,
1168 transport->url);
e8c1e6c7 1169 }
ed43de6e 1170 }
10a6cc88
TM
1171 if (fetch_refs(transport, ref_map)) {
1172 free_refs(ref_map);
1173 retcode = 1;
1174 goto cleanup;
1175 }
7f98428d 1176 free_refs(ref_map);
b888d61c
DB
1177
1178 /* if neither --no-tags nor --tags was specified, do automated tag
1179 * following ... */
83201998 1180 if (tags == TAGS_DEFAULT && autotags) {
c50b2b47
SP
1181 struct ref **tail = &ref_map;
1182 ref_map = NULL;
1183 find_non_local_tags(transport, &ref_map, &tail);
069d5032
JH
1184 if (ref_map)
1185 backfill_tags(transport, ref_map);
b888d61c
DB
1186 free_refs(ref_map);
1187 }
1188
5b87d8d3 1189 cleanup:
f83918ed 1190 string_list_clear(&existing_refs, 1);
5b87d8d3 1191 return retcode;
b888d61c
DB
1192}
1193
9c4a036b
BG
1194static int get_one_remote_for_fetch(struct remote *remote, void *priv)
1195{
1196 struct string_list *list = priv;
7cc91a2f 1197 if (!remote->skip_default_update)
1d2f80fa 1198 string_list_append(list, remote->name);
9c4a036b
BG
1199 return 0;
1200}
1201
1202struct remote_group_data {
1203 const char *name;
1204 struct string_list *list;
1205};
1206
1207static int get_remote_group(const char *key, const char *value, void *priv)
1208{
1209 struct remote_group_data *g = priv;
1210
bc598c32 1211 if (skip_prefix(key, "remotes.", &key) && !strcmp(key, g->name)) {
9c4a036b 1212 /* split list by white space */
9c4a036b 1213 while (*value) {
5f65499f
MH
1214 size_t wordlen = strcspn(value, " \t\n");
1215
e286542d 1216 if (wordlen >= 1)
b7410f61 1217 string_list_append_nodup(g->list,
e286542d
MH
1218 xstrndup(value, wordlen));
1219 value += wordlen + (value[wordlen] != '\0');
9c4a036b
BG
1220 }
1221 }
1222
1223 return 0;
1224}
1225
1226static int add_remote_or_group(const char *name, struct string_list *list)
1227{
1228 int prev_nr = list->nr;
66dbfd55
GV
1229 struct remote_group_data g;
1230 g.name = name; g.list = list;
9c4a036b
BG
1231
1232 git_config(get_remote_group, &g);
1233 if (list->nr == prev_nr) {
674468b3 1234 struct remote *remote = remote_get(name);
e459b073 1235 if (!remote_is_configured(remote, 0))
9c4a036b 1236 return 0;
1d2f80fa 1237 string_list_append(list, remote->name);
9c4a036b
BG
1238 }
1239 return 1;
1240}
1241
85556d4e 1242static void add_options_to_argv(struct argv_array *argv)
9c4a036b 1243{
28a15401 1244 if (dry_run)
85556d4e 1245 argv_array_push(argv, "--dry-run");
90765fa3
MH
1246 if (prune != -1)
1247 argv_array_push(argv, prune ? "--prune" : "--no-prune");
97716d21
ÆAB
1248 if (prune_tags != -1)
1249 argv_array_push(argv, prune_tags ? "--prune-tags" : "--no-prune-tags");
bba5322a 1250 if (update_head_ok)
85556d4e 1251 argv_array_push(argv, "--update-head-ok");
bba5322a 1252 if (force)
85556d4e 1253 argv_array_push(argv, "--force");
bba5322a 1254 if (keep)
85556d4e 1255 argv_array_push(argv, "--keep");
be254a0e 1256 if (recurse_submodules == RECURSE_SUBMODULES_ON)
85556d4e 1257 argv_array_push(argv, "--recurse-submodules");
8f0700dd 1258 else if (recurse_submodules == RECURSE_SUBMODULES_ON_DEMAND)
85556d4e 1259 argv_array_push(argv, "--recurse-submodules=on-demand");
85566460
DJ
1260 if (tags == TAGS_SET)
1261 argv_array_push(argv, "--tags");
1262 else if (tags == TAGS_UNSET)
1263 argv_array_push(argv, "--no-tags");
9c4a036b 1264 if (verbosity >= 2)
85556d4e 1265 argv_array_push(argv, "-v");
9c4a036b 1266 if (verbosity >= 1)
85556d4e 1267 argv_array_push(argv, "-v");
9c4a036b 1268 else if (verbosity < 0)
85556d4e 1269 argv_array_push(argv, "-q");
7dce19d3
JL
1270
1271}
1272
1273static int fetch_multiple(struct string_list *list)
1274{
1275 int i, result = 0;
85556d4e 1276 struct argv_array argv = ARGV_ARRAY_INIT;
9c4a036b 1277
e6cc5104
JH
1278 if (!append && !dry_run) {
1279 int errcode = truncate_fetch_head();
1280 if (errcode)
1281 return errcode;
1282 }
1283
85556d4e
JK
1284 argv_array_pushl(&argv, "fetch", "--append", NULL);
1285 add_options_to_argv(&argv);
1286
9c4a036b
BG
1287 for (i = 0; i < list->nr; i++) {
1288 const char *name = list->items[i].string;
85556d4e 1289 argv_array_push(&argv, name);
9c4a036b 1290 if (verbosity >= 0)
bd4a51fc 1291 printf(_("Fetching %s\n"), name);
85556d4e 1292 if (run_command_v_opt(argv.argv, RUN_GIT_CMD)) {
bd4a51fc 1293 error(_("Could not fetch %s"), name);
9c4a036b
BG
1294 result = 1;
1295 }
85556d4e 1296 argv_array_pop(&argv);
9c4a036b
BG
1297 }
1298
85556d4e 1299 argv_array_clear(&argv);
9c4a036b
BG
1300 return result;
1301}
1302
aa57b871
JH
1303/*
1304 * Fetching from the promisor remote should use the given filter-spec
1305 * or inherit the default filter-spec from the config.
1306 */
1307static inline void fetch_one_setup_partial(struct remote *remote)
1308{
1309 /*
1310 * Explicit --no-filter argument overrides everything, regardless
1311 * of any prior partial clones and fetches.
1312 */
1313 if (filter_options.no_filter)
1314 return;
1315
1316 /*
1317 * If no prior partial clone/fetch and the current fetch DID NOT
1318 * request a partial-fetch, do a normal fetch.
1319 */
1320 if (!repository_format_partial_clone && !filter_options.choice)
1321 return;
1322
1323 /*
1324 * If this is the FIRST partial-fetch request, we enable partial
1325 * on this repo and remember the given filter-spec as the default
1326 * for subsequent fetches to this remote.
1327 */
1328 if (!repository_format_partial_clone && filter_options.choice) {
1329 partial_clone_register(remote->name, &filter_options);
1330 return;
1331 }
1332
1333 /*
1334 * We are currently limited to only ONE promisor remote and only
1335 * allow partial-fetches from the promisor remote.
1336 */
1337 if (strcmp(remote->name, repository_format_partial_clone)) {
1338 if (filter_options.choice)
1339 die(_("--filter can only be used with the remote configured in core.partialClone"));
1340 return;
1341 }
1342
1343 /*
1344 * Do a partial-fetch from the promisor remote using either the
1345 * explicitly given filter-spec or inherit the filter-spec from
1346 * the config.
1347 */
1348 if (!filter_options.choice)
1349 partial_clone_get_default_filter_spec(&filter_options);
1350 return;
1351}
1352
97716d21 1353static int fetch_one(struct remote *remote, int argc, const char **argv, int prune_tags_ok)
b888d61c 1354{
d7c8e307
BW
1355 struct refspec rs = REFSPEC_INIT_FETCH;
1356 int i;
7b7f39ea 1357 int exit_code;
6317972c
ÆAB
1358 int maybe_prune_tags;
1359 int remote_via_config = remote_is_configured(remote, 0);
b888d61c 1360
fa685bdf 1361 if (!remote)
bd4a51fc
ÆAB
1362 die(_("No remote repository specified. Please, specify either a URL or a\n"
1363 "remote name from which new revisions should be fetched."));
fa685bdf 1364
508ea882 1365 gtransport = prepare_transport(remote, 1);
737c5a9c
MS
1366
1367 if (prune < 0) {
1368 /* no command line request */
07118832
ÆAB
1369 if (0 <= remote->prune)
1370 prune = remote->prune;
737c5a9c
MS
1371 else if (0 <= fetch_prune_config)
1372 prune = fetch_prune_config;
1373 else
1374 prune = PRUNE_BY_DEFAULT;
1375 }
1376
97716d21
ÆAB
1377 if (prune_tags < 0) {
1378 /* no command line request */
1379 if (0 <= remote->prune_tags)
1380 prune_tags = remote->prune_tags;
1381 else if (0 <= fetch_prune_tags_config)
1382 prune_tags = fetch_prune_tags_config;
1383 else
1384 prune_tags = PRUNE_TAGS_BY_DEFAULT;
1385 }
1386
6317972c
ÆAB
1387 maybe_prune_tags = prune_tags_ok && prune_tags;
1388 if (maybe_prune_tags && remote_via_config)
95303500 1389 refspec_append(&remote->fetch, TAG_REFSPEC);
97716d21 1390
d7c8e307
BW
1391 if (maybe_prune_tags && (argc || !remote_via_config))
1392 refspec_append(&rs, TAG_REFSPEC);
6317972c 1393
d7c8e307
BW
1394 for (i = 0; i < argc; i++) {
1395 if (!strcmp(argv[i], "tag")) {
1396 char *tag;
1397 i++;
1398 if (i >= argc)
1399 die(_("You need to specify a tag name."));
1400
1401 tag = xstrfmt("refs/tags/%s:refs/tags/%s",
1402 argv[i], argv[i]);
1403 refspec_append(&rs, tag);
1404 free(tag);
1405 } else {
1406 refspec_append(&rs, argv[i]);
b888d61c 1407 }
b888d61c
DB
1408 }
1409
5e3548ef
BW
1410 if (server_options.nr)
1411 gtransport->server_options = &server_options;
1412
57b235a4 1413 sigchain_push_common(unlock_pack_on_signal);
e4022ed2 1414 atexit(unlock_pack);
65a1301f 1415 exit_code = do_fetch(gtransport, &rs);
d7c8e307 1416 refspec_clear(&rs);
af234459
JH
1417 transport_disconnect(gtransport);
1418 gtransport = NULL;
7b7f39ea 1419 return exit_code;
b888d61c 1420}
9c4a036b
BG
1421
1422int cmd_fetch(int argc, const char **argv, const char *prefix)
1423{
1424 int i;
b7410f61 1425 struct string_list list = STRING_LIST_INIT_DUP;
a1743343 1426 struct remote *remote = NULL;
9c4a036b 1427 int result = 0;
c1a7902f 1428 int prune_tags_ok = 1;
1991006c 1429 struct argv_array argv_gc_auto = ARGV_ARRAY_INIT;
9c4a036b 1430
bbc30f99
JK
1431 packet_trace_identity("fetch");
1432
acb0c572
JH
1433 fetch_if_missing = 0;
1434
9c4a036b
BG
1435 /* Record the command line for the reflog */
1436 strbuf_addstr(&default_rla, "fetch");
1437 for (i = 1; i < argc; i++)
1438 strbuf_addf(&default_rla, " %s", argv[i]);
1439
f20e7c1e 1440 config_from_gitmodules(gitmodules_fetch_config, NULL);
737c5a9c
MS
1441 git_config(git_fetch_config, NULL);
1442
9c4a036b
BG
1443 argc = parse_options(argc, argv, prefix,
1444 builtin_fetch_options, builtin_fetch_usage, 0);
1445
cccf74e2
NTND
1446 if (deepen_relative) {
1447 if (deepen_relative < 0)
1448 die(_("Negative depth in --deepen is not supported"));
1449 if (depth)
1450 die(_("--deepen and --depth are mutually exclusive"));
1451 depth = xstrfmt("%d", deepen_relative);
1452 }
4dcb167f
NTND
1453 if (unshallow) {
1454 if (depth)
1455 die(_("--depth and --unshallow cannot be used together"));
c8813487 1456 else if (!is_repository_shallow(the_repository))
4dcb167f 1457 die(_("--unshallow on a complete repository does not make sense"));
2805bb59
JK
1458 else
1459 depth = xstrfmt("%d", INFINITE_DEPTH);
4dcb167f
NTND
1460 }
1461
5594bcad
NTND
1462 /* no need to be strict, transport_set_option() will validate it again */
1463 if (depth && atoi(depth) < 1)
1464 die(_("depth %s is not a positive number"), depth);
a45a2600 1465 if (depth || deepen_since || deepen_not.nr)
508ea882 1466 deepen = 1;
5594bcad 1467
acb0c572
JH
1468 if (filter_options.choice && !repository_format_partial_clone)
1469 die("--filter can only be used when extensions.partialClone is set");
1470
9c4a036b
BG
1471 if (all) {
1472 if (argc == 1)
bd4a51fc 1473 die(_("fetch --all does not take a repository argument"));
9c4a036b 1474 else if (argc > 1)
bd4a51fc 1475 die(_("fetch --all does not make sense with refspecs"));
9c4a036b 1476 (void) for_each_remote(get_one_remote_for_fetch, &list);
9c4a036b
BG
1477 } else if (argc == 0) {
1478 /* No arguments -- use default remote */
1479 remote = remote_get(NULL);
16679e37
BG
1480 } else if (multiple) {
1481 /* All arguments are assumed to be remotes or groups */
1482 for (i = 0; i < argc; i++)
1483 if (!add_remote_or_group(argv[i], &list))
bd4a51fc 1484 die(_("No such remote or remote group: %s"), argv[i]);
9c4a036b
BG
1485 } else {
1486 /* Single remote or group */
1487 (void) add_remote_or_group(argv[0], &list);
1488 if (list.nr > 1) {
1489 /* More than one remote */
1490 if (argc > 1)
bd4a51fc 1491 die(_("Fetching a group and specifying refspecs does not make sense"));
9c4a036b
BG
1492 } else {
1493 /* Zero or one remotes */
1494 remote = remote_get(argv[0]);
c1a7902f 1495 prune_tags_ok = (argc == 1);
a1743343
JT
1496 argc--;
1497 argv++;
9c4a036b
BG
1498 }
1499 }
1500
acb0c572 1501 if (remote) {
aa57b871
JH
1502 if (filter_options.choice || repository_format_partial_clone)
1503 fetch_one_setup_partial(remote);
c1a7902f 1504 result = fetch_one(remote, argc, argv, prune_tags_ok);
acb0c572
JH
1505 } else {
1506 if (filter_options.choice)
1507 die(_("--filter can only be used with the remote configured in core.partialClone"));
aa57b871 1508 /* TODO should this also die if we have a previous partial-clone? */
a1743343 1509 result = fetch_multiple(&list);
acb0c572 1510 }
a1743343 1511
be254a0e 1512 if (!result && (recurse_submodules != RECURSE_SUBMODULES_OFF)) {
85556d4e
JK
1513 struct argv_array options = ARGV_ARRAY_INIT;
1514
1515 add_options_to_argv(&options);
e724197f
BW
1516 result = fetch_populated_submodules(the_repository,
1517 &options,
7dce19d3 1518 submodule_prefix,
8f0700dd 1519 recurse_submodules,
8fa29159 1520 recurse_submodules_default,
62104ba1
SB
1521 verbosity < 0,
1522 max_children);
85556d4e 1523 argv_array_clear(&options);
7dce19d3
JL
1524 }
1525
9c4a036b
BG
1526 string_list_clear(&list, 0);
1527
d0b59866 1528 close_all_packs(the_repository->objects);
0898c962 1529
1991006c 1530 argv_array_pushl(&argv_gc_auto, "gc", "--auto", NULL);
6fceed3b
NTND
1531 if (verbosity < 0)
1532 argv_array_push(&argv_gc_auto, "--quiet");
1991006c
NTND
1533 run_command_v_opt(argv_gc_auto.argv, RUN_GIT_CMD);
1534 argv_array_clear(&argv_gc_auto);
131b8fcb 1535
9c4a036b
BG
1536 return result;
1537}