Merge branch 'nd/pack-unreachable-objects-doc'
[git.git] / builtin / fetch.c
blob1f037e8e4b8ba41b66314c5dd9633e0164f86c0e
1 /*
2 * "git fetch"
3 */
4 #include "cache.h"
5 #include "config.h"
6 #include "repository.h"
7 #include "refs.h"
8 #include "commit.h"
9 #include "builtin.h"
10 #include "string-list.h"
11 #include "remote.h"
12 #include "transport.h"
13 #include "run-command.h"
14 #include "parse-options.h"
15 #include "sigchain.h"
16 #include "submodule-config.h"
17 #include "submodule.h"
18 #include "connected.h"
19 #include "argv-array.h"
20 #include "utf8.h"
21 #include "packfile.h"
22 #include "list-objects-filter-options.h"
24 static const char * const builtin_fetch_usage[] = {
25 N_("git fetch [<options>] [<repository> [<refspec>...]]"),
26 N_("git fetch [<options>] <group>"),
27 N_("git fetch --multiple [<options>] [(<repository> | <group>)...]"),
28 N_("git fetch --all [<options>]"),
29 NULL
32 enum {
33 TAGS_UNSET = 0,
34 TAGS_DEFAULT = 1,
35 TAGS_SET = 2
38 static int fetch_prune_config = -1; /* unspecified */
39 static int prune = -1; /* unspecified */
40 #define PRUNE_BY_DEFAULT 0 /* do we prune by default? */
42 static int fetch_prune_tags_config = -1; /* unspecified */
43 static int prune_tags = -1; /* unspecified */
44 #define PRUNE_TAGS_BY_DEFAULT 0 /* do we prune tags by default? */
46 static int all, append, dry_run, force, keep, multiple, update_head_ok, verbosity, deepen_relative;
47 static int progress = -1;
48 static int tags = TAGS_DEFAULT, unshallow, update_shallow, deepen;
49 static int max_children = 1;
50 static enum transport_family family;
51 static const char *depth;
52 static const char *deepen_since;
53 static const char *upload_pack;
54 static struct string_list deepen_not = STRING_LIST_INIT_NODUP;
55 static struct strbuf default_rla = STRBUF_INIT;
56 static struct transport *gtransport;
57 static struct transport *gsecondary;
58 static const char *submodule_prefix = "";
59 static int recurse_submodules = RECURSE_SUBMODULES_DEFAULT;
60 static int recurse_submodules_default = RECURSE_SUBMODULES_ON_DEMAND;
61 static int shown_url = 0;
62 static int refmap_alloc, refmap_nr;
63 static const char **refmap_array;
64 static struct list_objects_filter_options filter_options;
65 static struct string_list server_options = STRING_LIST_INIT_DUP;
67 static int git_fetch_config(const char *k, const char *v, void *cb)
69 if (!strcmp(k, "fetch.prune")) {
70 fetch_prune_config = git_config_bool(k, v);
71 return 0;
74 if (!strcmp(k, "fetch.prunetags")) {
75 fetch_prune_tags_config = git_config_bool(k, v);
76 return 0;
79 if (!strcmp(k, "submodule.recurse")) {
80 int r = git_config_bool(k, v) ?
81 RECURSE_SUBMODULES_ON : RECURSE_SUBMODULES_OFF;
82 recurse_submodules = r;
85 if (!strcmp(k, "submodule.fetchjobs")) {
86 max_children = parse_submodule_fetchjobs(k, v);
87 return 0;
88 } else if (!strcmp(k, "fetch.recursesubmodules")) {
89 recurse_submodules = parse_fetch_recurse_submodules_arg(k, v);
90 return 0;
93 return git_default_config(k, v, cb);
96 static int gitmodules_fetch_config(const char *var, const char *value, void *cb)
98 if (!strcmp(var, "submodule.fetchjobs")) {
99 max_children = parse_submodule_fetchjobs(var, value);
100 return 0;
101 } else if (!strcmp(var, "fetch.recursesubmodules")) {
102 recurse_submodules = parse_fetch_recurse_submodules_arg(var, value);
103 return 0;
106 return 0;
109 static int parse_refmap_arg(const struct option *opt, const char *arg, int unset)
111 ALLOC_GROW(refmap_array, refmap_nr + 1, refmap_alloc);
114 * "git fetch --refmap='' origin foo"
115 * can be used to tell the command not to store anywhere
117 if (*arg)
118 refmap_array[refmap_nr++] = arg;
119 return 0;
122 static struct option builtin_fetch_options[] = {
123 OPT__VERBOSITY(&verbosity),
124 OPT_BOOL(0, "all", &all,
125 N_("fetch from all remotes")),
126 OPT_BOOL('a', "append", &append,
127 N_("append to .git/FETCH_HEAD instead of overwriting")),
128 OPT_STRING(0, "upload-pack", &upload_pack, N_("path"),
129 N_("path to upload pack on remote end")),
130 OPT__FORCE(&force, N_("force overwrite of local branch"), 0),
131 OPT_BOOL('m', "multiple", &multiple,
132 N_("fetch from multiple remotes")),
133 OPT_SET_INT('t', "tags", &tags,
134 N_("fetch all tags and associated objects"), TAGS_SET),
135 OPT_SET_INT('n', NULL, &tags,
136 N_("do not fetch all tags (--no-tags)"), TAGS_UNSET),
137 OPT_INTEGER('j', "jobs", &max_children,
138 N_("number of submodules fetched in parallel")),
139 OPT_BOOL('p', "prune", &prune,
140 N_("prune remote-tracking branches no longer on remote")),
141 OPT_BOOL('P', "prune-tags", &prune_tags,
142 N_("prune local tags no longer on remote and clobber changed tags")),
143 { OPTION_CALLBACK, 0, "recurse-submodules", &recurse_submodules, N_("on-demand"),
144 N_("control recursive fetching of submodules"),
145 PARSE_OPT_OPTARG, option_fetch_parse_recurse_submodules },
146 OPT_BOOL(0, "dry-run", &dry_run,
147 N_("dry run")),
148 OPT_BOOL('k', "keep", &keep, N_("keep downloaded pack")),
149 OPT_BOOL('u', "update-head-ok", &update_head_ok,
150 N_("allow updating of HEAD ref")),
151 OPT_BOOL(0, "progress", &progress, N_("force progress reporting")),
152 OPT_STRING(0, "depth", &depth, N_("depth"),
153 N_("deepen history of shallow clone")),
154 OPT_STRING(0, "shallow-since", &deepen_since, N_("time"),
155 N_("deepen history of shallow repository based on time")),
156 OPT_STRING_LIST(0, "shallow-exclude", &deepen_not, N_("revision"),
157 N_("deepen history of shallow clone, excluding rev")),
158 OPT_INTEGER(0, "deepen", &deepen_relative,
159 N_("deepen history of shallow clone")),
160 { OPTION_SET_INT, 0, "unshallow", &unshallow, NULL,
161 N_("convert to a complete repository"),
162 PARSE_OPT_NONEG | PARSE_OPT_NOARG, NULL, 1 },
163 { OPTION_STRING, 0, "submodule-prefix", &submodule_prefix, N_("dir"),
164 N_("prepend this to submodule path output"), PARSE_OPT_HIDDEN },
165 { OPTION_CALLBACK, 0, "recurse-submodules-default",
166 &recurse_submodules_default, N_("on-demand"),
167 N_("default for recursive fetching of submodules "
168 "(lower priority than config files)"),
169 PARSE_OPT_HIDDEN, option_fetch_parse_recurse_submodules },
170 OPT_BOOL(0, "update-shallow", &update_shallow,
171 N_("accept refs that update .git/shallow")),
172 { OPTION_CALLBACK, 0, "refmap", NULL, N_("refmap"),
173 N_("specify fetch refmap"), PARSE_OPT_NONEG, parse_refmap_arg },
174 OPT_STRING_LIST('o', "server-option", &server_options, N_("server-specific"), N_("option to transmit")),
175 OPT_SET_INT('4', "ipv4", &family, N_("use IPv4 addresses only"),
176 TRANSPORT_FAMILY_IPV4),
177 OPT_SET_INT('6', "ipv6", &family, N_("use IPv6 addresses only"),
178 TRANSPORT_FAMILY_IPV6),
179 OPT_PARSE_LIST_OBJECTS_FILTER(&filter_options),
180 OPT_END()
183 static void unlock_pack(void)
185 if (gtransport)
186 transport_unlock_pack(gtransport);
187 if (gsecondary)
188 transport_unlock_pack(gsecondary);
191 static void unlock_pack_on_signal(int signo)
193 unlock_pack();
194 sigchain_pop(signo);
195 raise(signo);
198 static void add_merge_config(struct ref **head,
199 const struct ref *remote_refs,
200 struct branch *branch,
201 struct ref ***tail)
203 int i;
205 for (i = 0; i < branch->merge_nr; i++) {
206 struct ref *rm, **old_tail = *tail;
207 struct refspec refspec;
209 for (rm = *head; rm; rm = rm->next) {
210 if (branch_merge_matches(branch, i, rm->name)) {
211 rm->fetch_head_status = FETCH_HEAD_MERGE;
212 break;
215 if (rm)
216 continue;
219 * Not fetched to a remote-tracking branch? We need to fetch
220 * it anyway to allow this branch's "branch.$name.merge"
221 * to be honored by 'git pull', but we do not have to
222 * fail if branch.$name.merge is misconfigured to point
223 * at a nonexisting branch. If we were indeed called by
224 * 'git pull', it will notice the misconfiguration because
225 * there is no entry in the resulting FETCH_HEAD marked
226 * for merging.
228 memset(&refspec, 0, sizeof(refspec));
229 refspec.src = branch->merge[i]->src;
230 get_fetch_map(remote_refs, &refspec, tail, 1);
231 for (rm = *old_tail; rm; rm = rm->next)
232 rm->fetch_head_status = FETCH_HEAD_MERGE;
236 static int add_existing(const char *refname, const struct object_id *oid,
237 int flag, void *cbdata)
239 struct string_list *list = (struct string_list *)cbdata;
240 struct string_list_item *item = string_list_insert(list, refname);
241 struct object_id *old_oid = xmalloc(sizeof(*old_oid));
243 oidcpy(old_oid, oid);
244 item->util = old_oid;
245 return 0;
248 static int will_fetch(struct ref **head, const unsigned char *sha1)
250 struct ref *rm = *head;
251 while (rm) {
252 if (!hashcmp(rm->old_oid.hash, sha1))
253 return 1;
254 rm = rm->next;
256 return 0;
259 static void find_non_local_tags(struct transport *transport,
260 struct ref **head,
261 struct ref ***tail)
263 struct string_list existing_refs = STRING_LIST_INIT_DUP;
264 struct string_list remote_refs = STRING_LIST_INIT_NODUP;
265 const struct ref *ref;
266 struct string_list_item *item = NULL;
268 for_each_ref(add_existing, &existing_refs);
269 for (ref = transport_get_remote_refs(transport, NULL); ref; ref = ref->next) {
270 if (!starts_with(ref->name, "refs/tags/"))
271 continue;
274 * The peeled ref always follows the matching base
275 * ref, so if we see a peeled ref that we don't want
276 * to fetch then we can mark the ref entry in the list
277 * as one to ignore by setting util to NULL.
279 if (ends_with(ref->name, "^{}")) {
280 if (item &&
281 !has_object_file_with_flags(&ref->old_oid,
282 OBJECT_INFO_QUICK) &&
283 !will_fetch(head, ref->old_oid.hash) &&
284 !has_sha1_file_with_flags(item->util,
285 OBJECT_INFO_QUICK) &&
286 !will_fetch(head, item->util))
287 item->util = NULL;
288 item = NULL;
289 continue;
293 * If item is non-NULL here, then we previously saw a
294 * ref not followed by a peeled reference, so we need
295 * to check if it is a lightweight tag that we want to
296 * fetch.
298 if (item &&
299 !has_sha1_file_with_flags(item->util, OBJECT_INFO_QUICK) &&
300 !will_fetch(head, item->util))
301 item->util = NULL;
303 item = NULL;
305 /* skip duplicates and refs that we already have */
306 if (string_list_has_string(&remote_refs, ref->name) ||
307 string_list_has_string(&existing_refs, ref->name))
308 continue;
310 item = string_list_insert(&remote_refs, ref->name);
311 item->util = (void *)&ref->old_oid;
313 string_list_clear(&existing_refs, 1);
316 * We may have a final lightweight tag that needs to be
317 * checked to see if it needs fetching.
319 if (item &&
320 !has_sha1_file_with_flags(item->util, OBJECT_INFO_QUICK) &&
321 !will_fetch(head, item->util))
322 item->util = NULL;
325 * For all the tags in the remote_refs string list,
326 * add them to the list of refs to be fetched
328 for_each_string_list_item(item, &remote_refs) {
329 /* Unless we have already decided to ignore this item... */
330 if (item->util)
332 struct ref *rm = alloc_ref(item->string);
333 rm->peer_ref = alloc_ref(item->string);
334 oidcpy(&rm->old_oid, item->util);
335 **tail = rm;
336 *tail = &rm->next;
340 string_list_clear(&remote_refs, 0);
343 static struct ref *get_ref_map(struct transport *transport,
344 struct refspec *refspecs, int refspec_count,
345 int tags, int *autotags)
347 int i;
348 struct ref *rm;
349 struct ref *ref_map = NULL;
350 struct ref **tail = &ref_map;
351 struct argv_array ref_prefixes = ARGV_ARRAY_INIT;
353 /* opportunistically-updated references: */
354 struct ref *orefs = NULL, **oref_tail = &orefs;
356 const struct ref *remote_refs;
358 for (i = 0; i < refspec_count; i++) {
359 if (!refspecs[i].exact_sha1) {
360 const char *glob = strchr(refspecs[i].src, '*');
361 if (glob)
362 argv_array_pushf(&ref_prefixes, "%.*s",
363 (int)(glob - refspecs[i].src),
364 refspecs[i].src);
365 else
366 expand_ref_prefix(&ref_prefixes, refspecs[i].src);
370 remote_refs = transport_get_remote_refs(transport, &ref_prefixes);
372 argv_array_clear(&ref_prefixes);
374 if (refspec_count) {
375 struct refspec *fetch_refspec;
376 int fetch_refspec_nr;
378 for (i = 0; i < refspec_count; i++) {
379 get_fetch_map(remote_refs, &refspecs[i], &tail, 0);
380 if (refspecs[i].dst && refspecs[i].dst[0])
381 *autotags = 1;
383 /* Merge everything on the command line (but not --tags) */
384 for (rm = ref_map; rm; rm = rm->next)
385 rm->fetch_head_status = FETCH_HEAD_MERGE;
388 * For any refs that we happen to be fetching via
389 * command-line arguments, the destination ref might
390 * have been missing or have been different than the
391 * remote-tracking ref that would be derived from the
392 * configured refspec. In these cases, we want to
393 * take the opportunity to update their configured
394 * remote-tracking reference. However, we do not want
395 * to mention these entries in FETCH_HEAD at all, as
396 * they would simply be duplicates of existing
397 * entries, so we set them FETCH_HEAD_IGNORE below.
399 * We compute these entries now, based only on the
400 * refspecs specified on the command line. But we add
401 * them to the list following the refspecs resulting
402 * from the tags option so that one of the latter,
403 * which has FETCH_HEAD_NOT_FOR_MERGE, is not removed
404 * by ref_remove_duplicates() in favor of one of these
405 * opportunistic entries with FETCH_HEAD_IGNORE.
407 if (refmap_array) {
408 fetch_refspec = parse_fetch_refspec(refmap_nr, refmap_array);
409 fetch_refspec_nr = refmap_nr;
410 } else {
411 fetch_refspec = transport->remote->fetch;
412 fetch_refspec_nr = transport->remote->fetch_refspec_nr;
415 for (i = 0; i < fetch_refspec_nr; i++)
416 get_fetch_map(ref_map, &fetch_refspec[i], &oref_tail, 1);
417 } else if (refmap_array) {
418 die("--refmap option is only meaningful with command-line refspec(s).");
419 } else {
420 /* Use the defaults */
421 struct remote *remote = transport->remote;
422 struct branch *branch = branch_get(NULL);
423 int has_merge = branch_has_merge_config(branch);
424 if (remote &&
425 (remote->fetch_refspec_nr ||
426 /* Note: has_merge implies non-NULL branch->remote_name */
427 (has_merge && !strcmp(branch->remote_name, remote->name)))) {
428 for (i = 0; i < remote->fetch_refspec_nr; i++) {
429 get_fetch_map(remote_refs, &remote->fetch[i], &tail, 0);
430 if (remote->fetch[i].dst &&
431 remote->fetch[i].dst[0])
432 *autotags = 1;
433 if (!i && !has_merge && ref_map &&
434 !remote->fetch[0].pattern)
435 ref_map->fetch_head_status = FETCH_HEAD_MERGE;
438 * if the remote we're fetching from is the same
439 * as given in branch.<name>.remote, we add the
440 * ref given in branch.<name>.merge, too.
442 * Note: has_merge implies non-NULL branch->remote_name
444 if (has_merge &&
445 !strcmp(branch->remote_name, remote->name))
446 add_merge_config(&ref_map, remote_refs, branch, &tail);
447 } else {
448 ref_map = get_remote_ref(remote_refs, "HEAD");
449 if (!ref_map)
450 die(_("Couldn't find remote ref HEAD"));
451 ref_map->fetch_head_status = FETCH_HEAD_MERGE;
452 tail = &ref_map->next;
456 if (tags == TAGS_SET)
457 /* also fetch all tags */
458 get_fetch_map(remote_refs, tag_refspec, &tail, 0);
459 else if (tags == TAGS_DEFAULT && *autotags)
460 find_non_local_tags(transport, &ref_map, &tail);
462 /* Now append any refs to be updated opportunistically: */
463 *tail = orefs;
464 for (rm = orefs; rm; rm = rm->next) {
465 rm->fetch_head_status = FETCH_HEAD_IGNORE;
466 tail = &rm->next;
469 return ref_remove_duplicates(ref_map);
472 #define STORE_REF_ERROR_OTHER 1
473 #define STORE_REF_ERROR_DF_CONFLICT 2
475 static int s_update_ref(const char *action,
476 struct ref *ref,
477 int check_old)
479 char *msg;
480 char *rla = getenv("GIT_REFLOG_ACTION");
481 struct ref_transaction *transaction;
482 struct strbuf err = STRBUF_INIT;
483 int ret, df_conflict = 0;
485 if (dry_run)
486 return 0;
487 if (!rla)
488 rla = default_rla.buf;
489 msg = xstrfmt("%s: %s", rla, action);
491 transaction = ref_transaction_begin(&err);
492 if (!transaction ||
493 ref_transaction_update(transaction, ref->name,
494 &ref->new_oid,
495 check_old ? &ref->old_oid : NULL,
496 0, msg, &err))
497 goto fail;
499 ret = ref_transaction_commit(transaction, &err);
500 if (ret) {
501 df_conflict = (ret == TRANSACTION_NAME_CONFLICT);
502 goto fail;
505 ref_transaction_free(transaction);
506 strbuf_release(&err);
507 free(msg);
508 return 0;
509 fail:
510 ref_transaction_free(transaction);
511 error("%s", err.buf);
512 strbuf_release(&err);
513 free(msg);
514 return df_conflict ? STORE_REF_ERROR_DF_CONFLICT
515 : STORE_REF_ERROR_OTHER;
518 static int refcol_width = 10;
519 static int compact_format;
521 static void adjust_refcol_width(const struct ref *ref)
523 int max, rlen, llen, len;
525 /* uptodate lines are only shown on high verbosity level */
526 if (!verbosity && !oidcmp(&ref->peer_ref->old_oid, &ref->old_oid))
527 return;
529 max = term_columns();
530 rlen = utf8_strwidth(prettify_refname(ref->name));
532 llen = utf8_strwidth(prettify_refname(ref->peer_ref->name));
535 * rough estimation to see if the output line is too long and
536 * should not be counted (we can't do precise calculation
537 * anyway because we don't know if the error explanation part
538 * will be printed in update_local_ref)
540 if (compact_format) {
541 llen = 0;
542 max = max * 2 / 3;
544 len = 21 /* flag and summary */ + rlen + 4 /* -> */ + llen;
545 if (len >= max)
546 return;
549 * Not precise calculation for compact mode because '*' can
550 * appear on the left hand side of '->' and shrink the column
551 * back.
553 if (refcol_width < rlen)
554 refcol_width = rlen;
557 static void prepare_format_display(struct ref *ref_map)
559 struct ref *rm;
560 const char *format = "full";
562 git_config_get_string_const("fetch.output", &format);
563 if (!strcasecmp(format, "full"))
564 compact_format = 0;
565 else if (!strcasecmp(format, "compact"))
566 compact_format = 1;
567 else
568 die(_("configuration fetch.output contains invalid value %s"),
569 format);
571 for (rm = ref_map; rm; rm = rm->next) {
572 if (rm->status == REF_STATUS_REJECT_SHALLOW ||
573 !rm->peer_ref ||
574 !strcmp(rm->name, "HEAD"))
575 continue;
577 adjust_refcol_width(rm);
581 static void print_remote_to_local(struct strbuf *display,
582 const char *remote, const char *local)
584 strbuf_addf(display, "%-*s -> %s", refcol_width, remote, local);
587 static int find_and_replace(struct strbuf *haystack,
588 const char *needle,
589 const char *placeholder)
591 const char *p = strstr(haystack->buf, needle);
592 int plen, nlen;
594 if (!p)
595 return 0;
597 if (p > haystack->buf && p[-1] != '/')
598 return 0;
600 plen = strlen(p);
601 nlen = strlen(needle);
602 if (plen > nlen && p[nlen] != '/')
603 return 0;
605 strbuf_splice(haystack, p - haystack->buf, nlen,
606 placeholder, strlen(placeholder));
607 return 1;
610 static void print_compact(struct strbuf *display,
611 const char *remote, const char *local)
613 struct strbuf r = STRBUF_INIT;
614 struct strbuf l = STRBUF_INIT;
616 if (!strcmp(remote, local)) {
617 strbuf_addf(display, "%-*s -> *", refcol_width, remote);
618 return;
621 strbuf_addstr(&r, remote);
622 strbuf_addstr(&l, local);
624 if (!find_and_replace(&r, local, "*"))
625 find_and_replace(&l, remote, "*");
626 print_remote_to_local(display, r.buf, l.buf);
628 strbuf_release(&r);
629 strbuf_release(&l);
632 static void format_display(struct strbuf *display, char code,
633 const char *summary, const char *error,
634 const char *remote, const char *local,
635 int summary_width)
637 int width = (summary_width + strlen(summary) - gettext_width(summary));
639 strbuf_addf(display, "%c %-*s ", code, width, summary);
640 if (!compact_format)
641 print_remote_to_local(display, remote, local);
642 else
643 print_compact(display, remote, local);
644 if (error)
645 strbuf_addf(display, " (%s)", error);
648 static int update_local_ref(struct ref *ref,
649 const char *remote,
650 const struct ref *remote_ref,
651 struct strbuf *display,
652 int summary_width)
654 struct commit *current = NULL, *updated;
655 enum object_type type;
656 struct branch *current_branch = branch_get(NULL);
657 const char *pretty_ref = prettify_refname(ref->name);
659 type = oid_object_info(the_repository, &ref->new_oid, NULL);
660 if (type < 0)
661 die(_("object %s not found"), oid_to_hex(&ref->new_oid));
663 if (!oidcmp(&ref->old_oid, &ref->new_oid)) {
664 if (verbosity > 0)
665 format_display(display, '=', _("[up to date]"), NULL,
666 remote, pretty_ref, summary_width);
667 return 0;
670 if (current_branch &&
671 !strcmp(ref->name, current_branch->name) &&
672 !(update_head_ok || is_bare_repository()) &&
673 !is_null_oid(&ref->old_oid)) {
675 * If this is the head, and it's not okay to update
676 * the head, and the old value of the head isn't empty...
678 format_display(display, '!', _("[rejected]"),
679 _("can't fetch in current branch"),
680 remote, pretty_ref, summary_width);
681 return 1;
684 if (!is_null_oid(&ref->old_oid) &&
685 starts_with(ref->name, "refs/tags/")) {
686 int r;
687 r = s_update_ref("updating tag", ref, 0);
688 format_display(display, r ? '!' : 't', _("[tag update]"),
689 r ? _("unable to update local ref") : NULL,
690 remote, pretty_ref, summary_width);
691 return r;
694 current = lookup_commit_reference_gently(&ref->old_oid, 1);
695 updated = lookup_commit_reference_gently(&ref->new_oid, 1);
696 if (!current || !updated) {
697 const char *msg;
698 const char *what;
699 int r;
701 * Nicely describe the new ref we're fetching.
702 * Base this on the remote's ref name, as it's
703 * more likely to follow a standard layout.
705 const char *name = remote_ref ? remote_ref->name : "";
706 if (starts_with(name, "refs/tags/")) {
707 msg = "storing tag";
708 what = _("[new tag]");
709 } else if (starts_with(name, "refs/heads/")) {
710 msg = "storing head";
711 what = _("[new branch]");
712 } else {
713 msg = "storing ref";
714 what = _("[new ref]");
717 if ((recurse_submodules != RECURSE_SUBMODULES_OFF) &&
718 (recurse_submodules != RECURSE_SUBMODULES_ON))
719 check_for_new_submodule_commits(&ref->new_oid);
720 r = s_update_ref(msg, ref, 0);
721 format_display(display, r ? '!' : '*', what,
722 r ? _("unable to update local ref") : NULL,
723 remote, pretty_ref, summary_width);
724 return r;
727 if (in_merge_bases(current, updated)) {
728 struct strbuf quickref = STRBUF_INIT;
729 int r;
730 strbuf_add_unique_abbrev(&quickref, &current->object.oid, DEFAULT_ABBREV);
731 strbuf_addstr(&quickref, "..");
732 strbuf_add_unique_abbrev(&quickref, &ref->new_oid, DEFAULT_ABBREV);
733 if ((recurse_submodules != RECURSE_SUBMODULES_OFF) &&
734 (recurse_submodules != RECURSE_SUBMODULES_ON))
735 check_for_new_submodule_commits(&ref->new_oid);
736 r = s_update_ref("fast-forward", ref, 1);
737 format_display(display, r ? '!' : ' ', quickref.buf,
738 r ? _("unable to update local ref") : NULL,
739 remote, pretty_ref, summary_width);
740 strbuf_release(&quickref);
741 return r;
742 } else if (force || ref->force) {
743 struct strbuf quickref = STRBUF_INIT;
744 int r;
745 strbuf_add_unique_abbrev(&quickref, &current->object.oid, DEFAULT_ABBREV);
746 strbuf_addstr(&quickref, "...");
747 strbuf_add_unique_abbrev(&quickref, &ref->new_oid, DEFAULT_ABBREV);
748 if ((recurse_submodules != RECURSE_SUBMODULES_OFF) &&
749 (recurse_submodules != RECURSE_SUBMODULES_ON))
750 check_for_new_submodule_commits(&ref->new_oid);
751 r = s_update_ref("forced-update", ref, 1);
752 format_display(display, r ? '!' : '+', quickref.buf,
753 r ? _("unable to update local ref") : _("forced update"),
754 remote, pretty_ref, summary_width);
755 strbuf_release(&quickref);
756 return r;
757 } else {
758 format_display(display, '!', _("[rejected]"), _("non-fast-forward"),
759 remote, pretty_ref, summary_width);
760 return 1;
764 static int iterate_ref_map(void *cb_data, struct object_id *oid)
766 struct ref **rm = cb_data;
767 struct ref *ref = *rm;
769 while (ref && ref->status == REF_STATUS_REJECT_SHALLOW)
770 ref = ref->next;
771 if (!ref)
772 return -1; /* end of the list */
773 *rm = ref->next;
774 oidcpy(oid, &ref->old_oid);
775 return 0;
778 static int store_updated_refs(const char *raw_url, const char *remote_name,
779 struct ref *ref_map)
781 FILE *fp;
782 struct commit *commit;
783 int url_len, i, rc = 0;
784 struct strbuf note = STRBUF_INIT;
785 const char *what, *kind;
786 struct ref *rm;
787 char *url;
788 const char *filename = dry_run ? "/dev/null" : git_path_fetch_head();
789 int want_status;
790 int summary_width = transport_summary_width(ref_map);
792 fp = fopen(filename, "a");
793 if (!fp)
794 return error_errno(_("cannot open %s"), filename);
796 if (raw_url)
797 url = transport_anonymize_url(raw_url);
798 else
799 url = xstrdup("foreign");
801 rm = ref_map;
802 if (check_connected(iterate_ref_map, &rm, NULL)) {
803 rc = error(_("%s did not send all necessary objects\n"), url);
804 goto abort;
807 prepare_format_display(ref_map);
810 * We do a pass for each fetch_head_status type in their enum order, so
811 * merged entries are written before not-for-merge. That lets readers
812 * use FETCH_HEAD as a refname to refer to the ref to be merged.
814 for (want_status = FETCH_HEAD_MERGE;
815 want_status <= FETCH_HEAD_IGNORE;
816 want_status++) {
817 for (rm = ref_map; rm; rm = rm->next) {
818 struct ref *ref = NULL;
819 const char *merge_status_marker = "";
821 if (rm->status == REF_STATUS_REJECT_SHALLOW) {
822 if (want_status == FETCH_HEAD_MERGE)
823 warning(_("reject %s because shallow roots are not allowed to be updated"),
824 rm->peer_ref ? rm->peer_ref->name : rm->name);
825 continue;
828 commit = lookup_commit_reference_gently(&rm->old_oid,
830 if (!commit)
831 rm->fetch_head_status = FETCH_HEAD_NOT_FOR_MERGE;
833 if (rm->fetch_head_status != want_status)
834 continue;
836 if (rm->peer_ref) {
837 ref = alloc_ref(rm->peer_ref->name);
838 oidcpy(&ref->old_oid, &rm->peer_ref->old_oid);
839 oidcpy(&ref->new_oid, &rm->old_oid);
840 ref->force = rm->peer_ref->force;
844 if (!strcmp(rm->name, "HEAD")) {
845 kind = "";
846 what = "";
848 else if (starts_with(rm->name, "refs/heads/")) {
849 kind = "branch";
850 what = rm->name + 11;
852 else if (starts_with(rm->name, "refs/tags/")) {
853 kind = "tag";
854 what = rm->name + 10;
856 else if (starts_with(rm->name, "refs/remotes/")) {
857 kind = "remote-tracking branch";
858 what = rm->name + 13;
860 else {
861 kind = "";
862 what = rm->name;
865 url_len = strlen(url);
866 for (i = url_len - 1; url[i] == '/' && 0 <= i; i--)
868 url_len = i + 1;
869 if (4 < i && !strncmp(".git", url + i - 3, 4))
870 url_len = i - 3;
872 strbuf_reset(&note);
873 if (*what) {
874 if (*kind)
875 strbuf_addf(&note, "%s ", kind);
876 strbuf_addf(&note, "'%s' of ", what);
878 switch (rm->fetch_head_status) {
879 case FETCH_HEAD_NOT_FOR_MERGE:
880 merge_status_marker = "not-for-merge";
881 /* fall-through */
882 case FETCH_HEAD_MERGE:
883 fprintf(fp, "%s\t%s\t%s",
884 oid_to_hex(&rm->old_oid),
885 merge_status_marker,
886 note.buf);
887 for (i = 0; i < url_len; ++i)
888 if ('\n' == url[i])
889 fputs("\\n", fp);
890 else
891 fputc(url[i], fp);
892 fputc('\n', fp);
893 break;
894 default:
895 /* do not write anything to FETCH_HEAD */
896 break;
899 strbuf_reset(&note);
900 if (ref) {
901 rc |= update_local_ref(ref, what, rm, &note,
902 summary_width);
903 free(ref);
904 } else
905 format_display(&note, '*',
906 *kind ? kind : "branch", NULL,
907 *what ? what : "HEAD",
908 "FETCH_HEAD", summary_width);
909 if (note.len) {
910 if (verbosity >= 0 && !shown_url) {
911 fprintf(stderr, _("From %.*s\n"),
912 url_len, url);
913 shown_url = 1;
915 if (verbosity >= 0)
916 fprintf(stderr, " %s\n", note.buf);
921 if (rc & STORE_REF_ERROR_DF_CONFLICT)
922 error(_("some local refs could not be updated; try running\n"
923 " 'git remote prune %s' to remove any old, conflicting "
924 "branches"), remote_name);
926 abort:
927 strbuf_release(&note);
928 free(url);
929 fclose(fp);
930 return rc;
934 * We would want to bypass the object transfer altogether if
935 * everything we are going to fetch already exists and is connected
936 * locally.
938 static int quickfetch(struct ref *ref_map)
940 struct ref *rm = ref_map;
941 struct check_connected_options opt = CHECK_CONNECTED_INIT;
944 * If we are deepening a shallow clone we already have these
945 * objects reachable. Running rev-list here will return with
946 * a good (0) exit status and we'll bypass the fetch that we
947 * really need to perform. Claiming failure now will ensure
948 * we perform the network exchange to deepen our history.
950 if (deepen)
951 return -1;
952 opt.quiet = 1;
953 return check_connected(iterate_ref_map, &rm, &opt);
956 static int fetch_refs(struct transport *transport, struct ref *ref_map)
958 int ret = quickfetch(ref_map);
959 if (ret)
960 ret = transport_fetch_refs(transport, ref_map);
961 if (!ret)
962 ret |= store_updated_refs(transport->url,
963 transport->remote->name,
964 ref_map);
965 transport_unlock_pack(transport);
966 return ret;
969 static int prune_refs(struct refspec *refs, int ref_count, struct ref *ref_map,
970 const char *raw_url)
972 int url_len, i, result = 0;
973 struct ref *ref, *stale_refs = get_stale_heads(refs, ref_count, ref_map);
974 char *url;
975 int summary_width = transport_summary_width(stale_refs);
976 const char *dangling_msg = dry_run
977 ? _(" (%s will become dangling)")
978 : _(" (%s has become dangling)");
980 if (raw_url)
981 url = transport_anonymize_url(raw_url);
982 else
983 url = xstrdup("foreign");
985 url_len = strlen(url);
986 for (i = url_len - 1; url[i] == '/' && 0 <= i; i--)
989 url_len = i + 1;
990 if (4 < i && !strncmp(".git", url + i - 3, 4))
991 url_len = i - 3;
993 if (!dry_run) {
994 struct string_list refnames = STRING_LIST_INIT_NODUP;
996 for (ref = stale_refs; ref; ref = ref->next)
997 string_list_append(&refnames, ref->name);
999 result = delete_refs("fetch: prune", &refnames, 0);
1000 string_list_clear(&refnames, 0);
1003 if (verbosity >= 0) {
1004 for (ref = stale_refs; ref; ref = ref->next) {
1005 struct strbuf sb = STRBUF_INIT;
1006 if (!shown_url) {
1007 fprintf(stderr, _("From %.*s\n"), url_len, url);
1008 shown_url = 1;
1010 format_display(&sb, '-', _("[deleted]"), NULL,
1011 _("(none)"), prettify_refname(ref->name),
1012 summary_width);
1013 fprintf(stderr, " %s\n",sb.buf);
1014 strbuf_release(&sb);
1015 warn_dangling_symref(stderr, dangling_msg, ref->name);
1019 free(url);
1020 free_refs(stale_refs);
1021 return result;
1024 static void check_not_current_branch(struct ref *ref_map)
1026 struct branch *current_branch = branch_get(NULL);
1028 if (is_bare_repository() || !current_branch)
1029 return;
1031 for (; ref_map; ref_map = ref_map->next)
1032 if (ref_map->peer_ref && !strcmp(current_branch->refname,
1033 ref_map->peer_ref->name))
1034 die(_("Refusing to fetch into current branch %s "
1035 "of non-bare repository"), current_branch->refname);
1038 static int truncate_fetch_head(void)
1040 const char *filename = git_path_fetch_head();
1041 FILE *fp = fopen_for_writing(filename);
1043 if (!fp)
1044 return error_errno(_("cannot open %s"), filename);
1045 fclose(fp);
1046 return 0;
1049 static void set_option(struct transport *transport, const char *name, const char *value)
1051 int r = transport_set_option(transport, name, value);
1052 if (r < 0)
1053 die(_("Option \"%s\" value \"%s\" is not valid for %s"),
1054 name, value, transport->url);
1055 if (r > 0)
1056 warning(_("Option \"%s\" is ignored for %s\n"),
1057 name, transport->url);
1060 static struct transport *prepare_transport(struct remote *remote, int deepen)
1062 struct transport *transport;
1063 transport = transport_get(remote, NULL);
1064 transport_set_verbosity(transport, verbosity, progress);
1065 transport->family = family;
1066 if (upload_pack)
1067 set_option(transport, TRANS_OPT_UPLOADPACK, upload_pack);
1068 if (keep)
1069 set_option(transport, TRANS_OPT_KEEP, "yes");
1070 if (depth)
1071 set_option(transport, TRANS_OPT_DEPTH, depth);
1072 if (deepen && deepen_since)
1073 set_option(transport, TRANS_OPT_DEEPEN_SINCE, deepen_since);
1074 if (deepen && deepen_not.nr)
1075 set_option(transport, TRANS_OPT_DEEPEN_NOT,
1076 (const char *)&deepen_not);
1077 if (deepen_relative)
1078 set_option(transport, TRANS_OPT_DEEPEN_RELATIVE, "yes");
1079 if (update_shallow)
1080 set_option(transport, TRANS_OPT_UPDATE_SHALLOW, "yes");
1081 if (filter_options.choice) {
1082 set_option(transport, TRANS_OPT_LIST_OBJECTS_FILTER,
1083 filter_options.filter_spec);
1084 set_option(transport, TRANS_OPT_FROM_PROMISOR, "1");
1086 return transport;
1089 static void backfill_tags(struct transport *transport, struct ref *ref_map)
1091 int cannot_reuse;
1094 * Once we have set TRANS_OPT_DEEPEN_SINCE, we can't unset it
1095 * when remote helper is used (setting it to an empty string
1096 * is not unsetting). We could extend the remote helper
1097 * protocol for that, but for now, just force a new connection
1098 * without deepen-since. Similar story for deepen-not.
1100 cannot_reuse = transport->cannot_reuse ||
1101 deepen_since || deepen_not.nr;
1102 if (cannot_reuse) {
1103 gsecondary = prepare_transport(transport->remote, 0);
1104 transport = gsecondary;
1107 transport_set_option(transport, TRANS_OPT_FOLLOWTAGS, NULL);
1108 transport_set_option(transport, TRANS_OPT_DEPTH, "0");
1109 transport_set_option(transport, TRANS_OPT_DEEPEN_RELATIVE, NULL);
1110 fetch_refs(transport, ref_map);
1112 if (gsecondary) {
1113 transport_disconnect(gsecondary);
1114 gsecondary = NULL;
1118 static int do_fetch(struct transport *transport,
1119 struct refspec *refs, int ref_count)
1121 struct string_list existing_refs = STRING_LIST_INIT_DUP;
1122 struct ref *ref_map;
1123 struct ref *rm;
1124 int autotags = (transport->remote->fetch_tags == 1);
1125 int retcode = 0;
1127 for_each_ref(add_existing, &existing_refs);
1129 if (tags == TAGS_DEFAULT) {
1130 if (transport->remote->fetch_tags == 2)
1131 tags = TAGS_SET;
1132 if (transport->remote->fetch_tags == -1)
1133 tags = TAGS_UNSET;
1136 /* if not appending, truncate FETCH_HEAD */
1137 if (!append && !dry_run) {
1138 retcode = truncate_fetch_head();
1139 if (retcode)
1140 goto cleanup;
1143 ref_map = get_ref_map(transport, refs, ref_count, tags, &autotags);
1144 if (!update_head_ok)
1145 check_not_current_branch(ref_map);
1147 for (rm = ref_map; rm; rm = rm->next) {
1148 if (rm->peer_ref) {
1149 struct string_list_item *peer_item =
1150 string_list_lookup(&existing_refs,
1151 rm->peer_ref->name);
1152 if (peer_item) {
1153 struct object_id *old_oid = peer_item->util;
1154 oidcpy(&rm->peer_ref->old_oid, old_oid);
1159 if (tags == TAGS_DEFAULT && autotags)
1160 transport_set_option(transport, TRANS_OPT_FOLLOWTAGS, "1");
1161 if (prune) {
1163 * We only prune based on refspecs specified
1164 * explicitly (via command line or configuration); we
1165 * don't care whether --tags was specified.
1167 if (ref_count) {
1168 prune_refs(refs, ref_count, ref_map, transport->url);
1169 } else {
1170 prune_refs(transport->remote->fetch,
1171 transport->remote->fetch_refspec_nr,
1172 ref_map,
1173 transport->url);
1176 if (fetch_refs(transport, ref_map)) {
1177 free_refs(ref_map);
1178 retcode = 1;
1179 goto cleanup;
1181 free_refs(ref_map);
1183 /* if neither --no-tags nor --tags was specified, do automated tag
1184 * following ... */
1185 if (tags == TAGS_DEFAULT && autotags) {
1186 struct ref **tail = &ref_map;
1187 ref_map = NULL;
1188 find_non_local_tags(transport, &ref_map, &tail);
1189 if (ref_map)
1190 backfill_tags(transport, ref_map);
1191 free_refs(ref_map);
1194 cleanup:
1195 string_list_clear(&existing_refs, 1);
1196 return retcode;
1199 static int get_one_remote_for_fetch(struct remote *remote, void *priv)
1201 struct string_list *list = priv;
1202 if (!remote->skip_default_update)
1203 string_list_append(list, remote->name);
1204 return 0;
1207 struct remote_group_data {
1208 const char *name;
1209 struct string_list *list;
1212 static int get_remote_group(const char *key, const char *value, void *priv)
1214 struct remote_group_data *g = priv;
1216 if (skip_prefix(key, "remotes.", &key) && !strcmp(key, g->name)) {
1217 /* split list by white space */
1218 while (*value) {
1219 size_t wordlen = strcspn(value, " \t\n");
1221 if (wordlen >= 1)
1222 string_list_append_nodup(g->list,
1223 xstrndup(value, wordlen));
1224 value += wordlen + (value[wordlen] != '\0');
1228 return 0;
1231 static int add_remote_or_group(const char *name, struct string_list *list)
1233 int prev_nr = list->nr;
1234 struct remote_group_data g;
1235 g.name = name; g.list = list;
1237 git_config(get_remote_group, &g);
1238 if (list->nr == prev_nr) {
1239 struct remote *remote = remote_get(name);
1240 if (!remote_is_configured(remote, 0))
1241 return 0;
1242 string_list_append(list, remote->name);
1244 return 1;
1247 static void add_options_to_argv(struct argv_array *argv)
1249 if (dry_run)
1250 argv_array_push(argv, "--dry-run");
1251 if (prune != -1)
1252 argv_array_push(argv, prune ? "--prune" : "--no-prune");
1253 if (prune_tags != -1)
1254 argv_array_push(argv, prune_tags ? "--prune-tags" : "--no-prune-tags");
1255 if (update_head_ok)
1256 argv_array_push(argv, "--update-head-ok");
1257 if (force)
1258 argv_array_push(argv, "--force");
1259 if (keep)
1260 argv_array_push(argv, "--keep");
1261 if (recurse_submodules == RECURSE_SUBMODULES_ON)
1262 argv_array_push(argv, "--recurse-submodules");
1263 else if (recurse_submodules == RECURSE_SUBMODULES_ON_DEMAND)
1264 argv_array_push(argv, "--recurse-submodules=on-demand");
1265 if (tags == TAGS_SET)
1266 argv_array_push(argv, "--tags");
1267 else if (tags == TAGS_UNSET)
1268 argv_array_push(argv, "--no-tags");
1269 if (verbosity >= 2)
1270 argv_array_push(argv, "-v");
1271 if (verbosity >= 1)
1272 argv_array_push(argv, "-v");
1273 else if (verbosity < 0)
1274 argv_array_push(argv, "-q");
1278 static int fetch_multiple(struct string_list *list)
1280 int i, result = 0;
1281 struct argv_array argv = ARGV_ARRAY_INIT;
1283 if (!append && !dry_run) {
1284 int errcode = truncate_fetch_head();
1285 if (errcode)
1286 return errcode;
1289 argv_array_pushl(&argv, "fetch", "--append", NULL);
1290 add_options_to_argv(&argv);
1292 for (i = 0; i < list->nr; i++) {
1293 const char *name = list->items[i].string;
1294 argv_array_push(&argv, name);
1295 if (verbosity >= 0)
1296 printf(_("Fetching %s\n"), name);
1297 if (run_command_v_opt(argv.argv, RUN_GIT_CMD)) {
1298 error(_("Could not fetch %s"), name);
1299 result = 1;
1301 argv_array_pop(&argv);
1304 argv_array_clear(&argv);
1305 return result;
1309 * Fetching from the promisor remote should use the given filter-spec
1310 * or inherit the default filter-spec from the config.
1312 static inline void fetch_one_setup_partial(struct remote *remote)
1315 * Explicit --no-filter argument overrides everything, regardless
1316 * of any prior partial clones and fetches.
1318 if (filter_options.no_filter)
1319 return;
1322 * If no prior partial clone/fetch and the current fetch DID NOT
1323 * request a partial-fetch, do a normal fetch.
1325 if (!repository_format_partial_clone && !filter_options.choice)
1326 return;
1329 * If this is the FIRST partial-fetch request, we enable partial
1330 * on this repo and remember the given filter-spec as the default
1331 * for subsequent fetches to this remote.
1333 if (!repository_format_partial_clone && filter_options.choice) {
1334 partial_clone_register(remote->name, &filter_options);
1335 return;
1339 * We are currently limited to only ONE promisor remote and only
1340 * allow partial-fetches from the promisor remote.
1342 if (strcmp(remote->name, repository_format_partial_clone)) {
1343 if (filter_options.choice)
1344 die(_("--filter can only be used with the remote configured in core.partialClone"));
1345 return;
1349 * Do a partial-fetch from the promisor remote using either the
1350 * explicitly given filter-spec or inherit the filter-spec from
1351 * the config.
1353 if (!filter_options.choice)
1354 partial_clone_get_default_filter_spec(&filter_options);
1355 return;
1358 static int fetch_one(struct remote *remote, int argc, const char **argv, int prune_tags_ok)
1360 static const char **refs = NULL;
1361 struct refspec *refspec;
1362 int ref_nr = 0;
1363 int j = 0;
1364 int exit_code;
1365 int maybe_prune_tags;
1366 int remote_via_config = remote_is_configured(remote, 0);
1368 if (!remote)
1369 die(_("No remote repository specified. Please, specify either a URL or a\n"
1370 "remote name from which new revisions should be fetched."));
1372 gtransport = prepare_transport(remote, 1);
1374 if (prune < 0) {
1375 /* no command line request */
1376 if (0 <= remote->prune)
1377 prune = remote->prune;
1378 else if (0 <= fetch_prune_config)
1379 prune = fetch_prune_config;
1380 else
1381 prune = PRUNE_BY_DEFAULT;
1384 if (prune_tags < 0) {
1385 /* no command line request */
1386 if (0 <= remote->prune_tags)
1387 prune_tags = remote->prune_tags;
1388 else if (0 <= fetch_prune_tags_config)
1389 prune_tags = fetch_prune_tags_config;
1390 else
1391 prune_tags = PRUNE_TAGS_BY_DEFAULT;
1394 maybe_prune_tags = prune_tags_ok && prune_tags;
1395 if (maybe_prune_tags && remote_via_config)
1396 add_prune_tags_to_fetch_refspec(remote);
1398 if (argc > 0 || (maybe_prune_tags && !remote_via_config)) {
1399 size_t nr_alloc = st_add3(argc, maybe_prune_tags, 1);
1400 refs = xcalloc(nr_alloc, sizeof(const char *));
1401 if (maybe_prune_tags) {
1402 refs[j++] = xstrdup("refs/tags/*:refs/tags/*");
1403 ref_nr++;
1407 if (argc > 0) {
1408 int i;
1409 for (i = 0; i < argc; i++) {
1410 if (!strcmp(argv[i], "tag")) {
1411 i++;
1412 if (i >= argc)
1413 die(_("You need to specify a tag name."));
1414 refs[j++] = xstrfmt("refs/tags/%s:refs/tags/%s",
1415 argv[i], argv[i]);
1416 } else
1417 refs[j++] = argv[i];
1418 ref_nr++;
1422 if (server_options.nr)
1423 gtransport->server_options = &server_options;
1425 sigchain_push_common(unlock_pack_on_signal);
1426 atexit(unlock_pack);
1427 refspec = parse_fetch_refspec(ref_nr, refs);
1428 exit_code = do_fetch(gtransport, refspec, ref_nr);
1429 free_refspec(ref_nr, refspec);
1430 transport_disconnect(gtransport);
1431 gtransport = NULL;
1432 return exit_code;
1435 int cmd_fetch(int argc, const char **argv, const char *prefix)
1437 int i;
1438 struct string_list list = STRING_LIST_INIT_DUP;
1439 struct remote *remote = NULL;
1440 int result = 0;
1441 int prune_tags_ok = 1;
1442 struct argv_array argv_gc_auto = ARGV_ARRAY_INIT;
1444 packet_trace_identity("fetch");
1446 fetch_if_missing = 0;
1448 /* Record the command line for the reflog */
1449 strbuf_addstr(&default_rla, "fetch");
1450 for (i = 1; i < argc; i++)
1451 strbuf_addf(&default_rla, " %s", argv[i]);
1453 config_from_gitmodules(gitmodules_fetch_config, NULL);
1454 git_config(git_fetch_config, NULL);
1456 argc = parse_options(argc, argv, prefix,
1457 builtin_fetch_options, builtin_fetch_usage, 0);
1459 if (deepen_relative) {
1460 if (deepen_relative < 0)
1461 die(_("Negative depth in --deepen is not supported"));
1462 if (depth)
1463 die(_("--deepen and --depth are mutually exclusive"));
1464 depth = xstrfmt("%d", deepen_relative);
1466 if (unshallow) {
1467 if (depth)
1468 die(_("--depth and --unshallow cannot be used together"));
1469 else if (!is_repository_shallow())
1470 die(_("--unshallow on a complete repository does not make sense"));
1471 else
1472 depth = xstrfmt("%d", INFINITE_DEPTH);
1475 /* no need to be strict, transport_set_option() will validate it again */
1476 if (depth && atoi(depth) < 1)
1477 die(_("depth %s is not a positive number"), depth);
1478 if (depth || deepen_since || deepen_not.nr)
1479 deepen = 1;
1481 if (filter_options.choice && !repository_format_partial_clone)
1482 die("--filter can only be used when extensions.partialClone is set");
1484 if (all) {
1485 if (argc == 1)
1486 die(_("fetch --all does not take a repository argument"));
1487 else if (argc > 1)
1488 die(_("fetch --all does not make sense with refspecs"));
1489 (void) for_each_remote(get_one_remote_for_fetch, &list);
1490 } else if (argc == 0) {
1491 /* No arguments -- use default remote */
1492 remote = remote_get(NULL);
1493 } else if (multiple) {
1494 /* All arguments are assumed to be remotes or groups */
1495 for (i = 0; i < argc; i++)
1496 if (!add_remote_or_group(argv[i], &list))
1497 die(_("No such remote or remote group: %s"), argv[i]);
1498 } else {
1499 /* Single remote or group */
1500 (void) add_remote_or_group(argv[0], &list);
1501 if (list.nr > 1) {
1502 /* More than one remote */
1503 if (argc > 1)
1504 die(_("Fetching a group and specifying refspecs does not make sense"));
1505 } else {
1506 /* Zero or one remotes */
1507 remote = remote_get(argv[0]);
1508 prune_tags_ok = (argc == 1);
1509 argc--;
1510 argv++;
1514 if (remote) {
1515 if (filter_options.choice || repository_format_partial_clone)
1516 fetch_one_setup_partial(remote);
1517 result = fetch_one(remote, argc, argv, prune_tags_ok);
1518 } else {
1519 if (filter_options.choice)
1520 die(_("--filter can only be used with the remote configured in core.partialClone"));
1521 /* TODO should this also die if we have a previous partial-clone? */
1522 result = fetch_multiple(&list);
1525 if (!result && (recurse_submodules != RECURSE_SUBMODULES_OFF)) {
1526 struct argv_array options = ARGV_ARRAY_INIT;
1528 add_options_to_argv(&options);
1529 result = fetch_populated_submodules(the_repository,
1530 &options,
1531 submodule_prefix,
1532 recurse_submodules,
1533 recurse_submodules_default,
1534 verbosity < 0,
1535 max_children);
1536 argv_array_clear(&options);
1539 string_list_clear(&list, 0);
1541 close_all_packs(the_repository->objects);
1543 argv_array_pushl(&argv_gc_auto, "gc", "--auto", NULL);
1544 if (verbosity < 0)
1545 argv_array_push(&argv_gc_auto, "--quiet");
1546 run_command_v_opt(argv_gc_auto.argv, RUN_GIT_CMD);
1547 argv_array_clear(&argv_gc_auto);
1549 return result;