6 #include "repository.h"
9 #include "object-store.h"
13 #include "string-list.h"
15 #include "transport.h"
16 #include "run-command.h"
17 #include "parse-options.h"
19 #include "submodule-config.h"
20 #include "submodule.h"
21 #include "connected.h"
25 #include "list-objects-filter-options.h"
26 #include "commit-reach.h"
28 #include "promisor-remote.h"
29 #include "commit-graph.h"
32 #define FORCED_UPDATES_DELAY_WARNING_IN_MS (10 * 1000)
34 static const char * const builtin_fetch_usage[] = {
35 N_("git fetch [<options>] [<repository> [<refspec>...]]"),
36 N_("git fetch [<options>] <group>"),
37 N_("git fetch --multiple [<options>] [(<repository> | <group>)...]"),
38 N_("git fetch --all [<options>]"),
48 static int fetch_prune_config = -1; /* unspecified */
49 static int fetch_show_forced_updates = 1;
50 static uint64_t forced_updates_ms = 0;
51 static int prune = -1; /* unspecified */
52 #define PRUNE_BY_DEFAULT 0 /* do we prune by default? */
54 static int fetch_prune_tags_config = -1; /* unspecified */
55 static int prune_tags = -1; /* unspecified */
56 #define PRUNE_TAGS_BY_DEFAULT 0 /* do we prune tags by default? */
58 static int all, append, dry_run, force, keep, multiple, update_head_ok;
59 static int write_fetch_head = 1;
60 static int verbosity, deepen_relative, set_upstream;
61 static int progress = -1;
62 static int enable_auto_gc = 1;
63 static int tags = TAGS_DEFAULT, unshallow, update_shallow, deepen;
64 static int max_jobs = -1, submodule_fetch_jobs_config = -1;
65 static int fetch_parallel_config = 1;
66 static enum transport_family family;
67 static const char *depth;
68 static const char *deepen_since;
69 static const char *upload_pack;
70 static struct string_list deepen_not = STRING_LIST_INIT_NODUP;
71 static struct strbuf default_rla = STRBUF_INIT;
72 static struct transport *gtransport;
73 static struct transport *gsecondary;
74 static const char *submodule_prefix = "";
75 static int recurse_submodules = RECURSE_SUBMODULES_DEFAULT;
76 static int recurse_submodules_default = RECURSE_SUBMODULES_ON_DEMAND;
77 static int shown_url = 0;
78 static struct refspec refmap = REFSPEC_INIT_FETCH;
79 static struct list_objects_filter_options filter_options;
80 static struct string_list server_options = STRING_LIST_INIT_DUP;
81 static struct string_list negotiation_tip = STRING_LIST_INIT_NODUP;
82 static int fetch_write_commit_graph = -1;
84 static int git_fetch_config(const char *k, const char *v, void *cb)
86 if (!strcmp(k, "fetch.prune")) {
87 fetch_prune_config = git_config_bool(k, v);
91 if (!strcmp(k, "fetch.prunetags")) {
92 fetch_prune_tags_config = git_config_bool(k, v);
96 if (!strcmp(k, "fetch.showforcedupdates")) {
97 fetch_show_forced_updates = git_config_bool(k, v);
101 if (!strcmp(k, "submodule.recurse")) {
102 int r = git_config_bool(k, v) ?
103 RECURSE_SUBMODULES_ON : RECURSE_SUBMODULES_OFF;
104 recurse_submodules = r;
107 if (!strcmp(k, "submodule.fetchjobs")) {
108 submodule_fetch_jobs_config = parse_submodule_fetchjobs(k, v);
110 } else if (!strcmp(k, "fetch.recursesubmodules")) {
111 recurse_submodules = parse_fetch_recurse_submodules_arg(k, v);
115 if (!strcmp(k, "fetch.parallel")) {
116 fetch_parallel_config = git_config_int(k, v);
117 if (fetch_parallel_config < 0)
118 die(_("fetch.parallel cannot be negative"));
122 return git_default_config(k, v, cb);
125 static int parse_refmap_arg(const struct option *opt, const char *arg, int unset)
127 BUG_ON_OPT_NEG(unset);
130 * "git fetch --refmap='' origin foo"
131 * can be used to tell the command not to store anywhere
133 refspec_append(&refmap, arg);
138 static struct option builtin_fetch_options[] = {
139 OPT__VERBOSITY(&verbosity),
140 OPT_BOOL(0, "all", &all,
141 N_("fetch from all remotes")),
142 OPT_BOOL(0, "set-upstream", &set_upstream,
143 N_("set upstream for git pull/fetch")),
144 OPT_BOOL('a', "append", &append,
145 N_("append to .git/FETCH_HEAD instead of overwriting")),
146 OPT_STRING(0, "upload-pack", &upload_pack, N_("path"),
147 N_("path to upload pack on remote end")),
148 OPT__FORCE(&force, N_("force overwrite of local reference"), 0),
149 OPT_BOOL('m', "multiple", &multiple,
150 N_("fetch from multiple remotes")),
151 OPT_SET_INT('t', "tags", &tags,
152 N_("fetch all tags and associated objects"), TAGS_SET),
153 OPT_SET_INT('n', NULL, &tags,
154 N_("do not fetch all tags (--no-tags)"), TAGS_UNSET),
155 OPT_INTEGER('j', "jobs", &max_jobs,
156 N_("number of submodules fetched in parallel")),
157 OPT_BOOL('p', "prune", &prune,
158 N_("prune remote-tracking branches no longer on remote")),
159 OPT_BOOL('P', "prune-tags", &prune_tags,
160 N_("prune local tags no longer on remote and clobber changed tags")),
161 OPT_CALLBACK_F(0, "recurse-submodules", &recurse_submodules, N_("on-demand"),
162 N_("control recursive fetching of submodules"),
163 PARSE_OPT_OPTARG, option_fetch_parse_recurse_submodules),
164 OPT_BOOL(0, "dry-run", &dry_run,
166 OPT_BOOL(0, "write-fetch-head", &write_fetch_head,
167 N_("write fetched references to the FETCH_HEAD file")),
168 OPT_BOOL('k', "keep", &keep, N_("keep downloaded pack")),
169 OPT_BOOL('u', "update-head-ok", &update_head_ok,
170 N_("allow updating of HEAD ref")),
171 OPT_BOOL(0, "progress", &progress, N_("force progress reporting")),
172 OPT_STRING(0, "depth", &depth, N_("depth"),
173 N_("deepen history of shallow clone")),
174 OPT_STRING(0, "shallow-since", &deepen_since, N_("time"),
175 N_("deepen history of shallow repository based on time")),
176 OPT_STRING_LIST(0, "shallow-exclude", &deepen_not, N_("revision"),
177 N_("deepen history of shallow clone, excluding rev")),
178 OPT_INTEGER(0, "deepen", &deepen_relative,
179 N_("deepen history of shallow clone")),
180 OPT_SET_INT_F(0, "unshallow", &unshallow,
181 N_("convert to a complete repository"),
183 { OPTION_STRING, 0, "submodule-prefix", &submodule_prefix, N_("dir"),
184 N_("prepend this to submodule path output"), PARSE_OPT_HIDDEN },
185 OPT_CALLBACK_F(0, "recurse-submodules-default",
186 &recurse_submodules_default, N_("on-demand"),
187 N_("default for recursive fetching of submodules "
188 "(lower priority than config files)"),
189 PARSE_OPT_HIDDEN, option_fetch_parse_recurse_submodules),
190 OPT_BOOL(0, "update-shallow", &update_shallow,
191 N_("accept refs that update .git/shallow")),
192 OPT_CALLBACK_F(0, "refmap", NULL, N_("refmap"),
193 N_("specify fetch refmap"), PARSE_OPT_NONEG, parse_refmap_arg),
194 OPT_STRING_LIST('o', "server-option", &server_options, N_("server-specific"), N_("option to transmit")),
195 OPT_SET_INT('4', "ipv4", &family, N_("use IPv4 addresses only"),
196 TRANSPORT_FAMILY_IPV4),
197 OPT_SET_INT('6', "ipv6", &family, N_("use IPv6 addresses only"),
198 TRANSPORT_FAMILY_IPV6),
199 OPT_STRING_LIST(0, "negotiation-tip", &negotiation_tip, N_("revision"),
200 N_("report that we have only objects reachable from this object")),
201 OPT_PARSE_LIST_OBJECTS_FILTER(&filter_options),
202 OPT_BOOL(0, "auto-gc", &enable_auto_gc,
203 N_("run 'gc --auto' after fetching")),
204 OPT_BOOL(0, "show-forced-updates", &fetch_show_forced_updates,
205 N_("check for forced-updates on all updated branches")),
206 OPT_BOOL(0, "write-commit-graph", &fetch_write_commit_graph,
207 N_("write the commit-graph after fetching")),
211 static void unlock_pack(void)
214 transport_unlock_pack(gtransport);
216 transport_unlock_pack(gsecondary);
219 static void unlock_pack_on_signal(int signo)
226 static void add_merge_config(struct ref **head,
227 const struct ref *remote_refs,
228 struct branch *branch,
233 for (i = 0; i < branch->merge_nr; i++) {
234 struct ref *rm, **old_tail = *tail;
235 struct refspec_item refspec;
237 for (rm = *head; rm; rm = rm->next) {
238 if (branch_merge_matches(branch, i, rm->name)) {
239 rm->fetch_head_status = FETCH_HEAD_MERGE;
247 * Not fetched to a remote-tracking branch? We need to fetch
248 * it anyway to allow this branch's "branch.$name.merge"
249 * to be honored by 'git pull', but we do not have to
250 * fail if branch.$name.merge is misconfigured to point
251 * at a nonexisting branch. If we were indeed called by
252 * 'git pull', it will notice the misconfiguration because
253 * there is no entry in the resulting FETCH_HEAD marked
256 memset(&refspec, 0, sizeof(refspec));
257 refspec.src = branch->merge[i]->src;
258 get_fetch_map(remote_refs, &refspec, tail, 1);
259 for (rm = *old_tail; rm; rm = rm->next)
260 rm->fetch_head_status = FETCH_HEAD_MERGE;
264 static void create_fetch_oidset(struct ref **head, struct oidset *out)
266 struct ref *rm = *head;
268 oidset_insert(out, &rm->old_oid);
273 struct refname_hash_entry {
274 struct hashmap_entry ent;
275 struct object_id oid;
277 char refname[FLEX_ARRAY];
280 static int refname_hash_entry_cmp(const void *hashmap_cmp_fn_data,
281 const struct hashmap_entry *eptr,
282 const struct hashmap_entry *entry_or_key,
285 const struct refname_hash_entry *e1, *e2;
287 e1 = container_of(eptr, const struct refname_hash_entry, ent);
288 e2 = container_of(entry_or_key, const struct refname_hash_entry, ent);
289 return strcmp(e1->refname, keydata ? keydata : e2->refname);
292 static struct refname_hash_entry *refname_hash_add(struct hashmap *map,
294 const struct object_id *oid)
296 struct refname_hash_entry *ent;
297 size_t len = strlen(refname);
299 FLEX_ALLOC_MEM(ent, refname, refname, len);
300 hashmap_entry_init(&ent->ent, strhash(refname));
301 oidcpy(&ent->oid, oid);
302 hashmap_add(map, &ent->ent);
306 static int add_one_refname(const char *refname,
307 const struct object_id *oid,
308 int flag, void *cbdata)
310 struct hashmap *refname_map = cbdata;
312 (void) refname_hash_add(refname_map, refname, oid);
316 static void refname_hash_init(struct hashmap *map)
318 hashmap_init(map, refname_hash_entry_cmp, NULL, 0);
321 static int refname_hash_exists(struct hashmap *map, const char *refname)
323 return !!hashmap_get_from_hash(map, strhash(refname), refname);
326 static void clear_item(struct refname_hash_entry *item)
331 static void find_non_local_tags(const struct ref *refs,
335 struct hashmap existing_refs;
336 struct hashmap remote_refs;
337 struct oidset fetch_oids = OIDSET_INIT;
338 struct string_list remote_refs_list = STRING_LIST_INIT_NODUP;
339 struct string_list_item *remote_ref_item;
340 const struct ref *ref;
341 struct refname_hash_entry *item = NULL;
342 const int quick_flags = OBJECT_INFO_QUICK | OBJECT_INFO_SKIP_FETCH_OBJECT;
344 refname_hash_init(&existing_refs);
345 refname_hash_init(&remote_refs);
346 create_fetch_oidset(head, &fetch_oids);
348 for_each_ref(add_one_refname, &existing_refs);
349 for (ref = refs; ref; ref = ref->next) {
350 if (!starts_with(ref->name, "refs/tags/"))
354 * The peeled ref always follows the matching base
355 * ref, so if we see a peeled ref that we don't want
356 * to fetch then we can mark the ref entry in the list
357 * as one to ignore by setting util to NULL.
359 if (ends_with(ref->name, "^{}")) {
361 !has_object_file_with_flags(&ref->old_oid, quick_flags) &&
362 !oidset_contains(&fetch_oids, &ref->old_oid) &&
363 !has_object_file_with_flags(&item->oid, quick_flags) &&
364 !oidset_contains(&fetch_oids, &item->oid))
371 * If item is non-NULL here, then we previously saw a
372 * ref not followed by a peeled reference, so we need
373 * to check if it is a lightweight tag that we want to
377 !has_object_file_with_flags(&item->oid, quick_flags) &&
378 !oidset_contains(&fetch_oids, &item->oid))
383 /* skip duplicates and refs that we already have */
384 if (refname_hash_exists(&remote_refs, ref->name) ||
385 refname_hash_exists(&existing_refs, ref->name))
388 item = refname_hash_add(&remote_refs, ref->name, &ref->old_oid);
389 string_list_insert(&remote_refs_list, ref->name);
391 hashmap_free_entries(&existing_refs, struct refname_hash_entry, ent);
394 * We may have a final lightweight tag that needs to be
395 * checked to see if it needs fetching.
398 !has_object_file_with_flags(&item->oid, quick_flags) &&
399 !oidset_contains(&fetch_oids, &item->oid))
403 * For all the tags in the remote_refs_list,
404 * add them to the list of refs to be fetched
406 for_each_string_list_item(remote_ref_item, &remote_refs_list) {
407 const char *refname = remote_ref_item->string;
409 unsigned int hash = strhash(refname);
411 item = hashmap_get_entry_from_hash(&remote_refs, hash, refname,
412 struct refname_hash_entry, ent);
414 BUG("unseen remote ref?");
416 /* Unless we have already decided to ignore this item... */
420 rm = alloc_ref(item->refname);
421 rm->peer_ref = alloc_ref(item->refname);
422 oidcpy(&rm->old_oid, &item->oid);
426 hashmap_free_entries(&remote_refs, struct refname_hash_entry, ent);
427 string_list_clear(&remote_refs_list, 0);
428 oidset_clear(&fetch_oids);
431 static struct ref *get_ref_map(struct remote *remote,
432 const struct ref *remote_refs,
434 int tags, int *autotags)
438 struct ref *ref_map = NULL;
439 struct ref **tail = &ref_map;
441 /* opportunistically-updated references: */
442 struct ref *orefs = NULL, **oref_tail = &orefs;
444 struct hashmap existing_refs;
447 struct refspec *fetch_refspec;
449 for (i = 0; i < rs->nr; i++) {
450 get_fetch_map(remote_refs, &rs->items[i], &tail, 0);
451 if (rs->items[i].dst && rs->items[i].dst[0])
454 /* Merge everything on the command line (but not --tags) */
455 for (rm = ref_map; rm; rm = rm->next)
456 rm->fetch_head_status = FETCH_HEAD_MERGE;
459 * For any refs that we happen to be fetching via
460 * command-line arguments, the destination ref might
461 * have been missing or have been different than the
462 * remote-tracking ref that would be derived from the
463 * configured refspec. In these cases, we want to
464 * take the opportunity to update their configured
465 * remote-tracking reference. However, we do not want
466 * to mention these entries in FETCH_HEAD at all, as
467 * they would simply be duplicates of existing
468 * entries, so we set them FETCH_HEAD_IGNORE below.
470 * We compute these entries now, based only on the
471 * refspecs specified on the command line. But we add
472 * them to the list following the refspecs resulting
473 * from the tags option so that one of the latter,
474 * which has FETCH_HEAD_NOT_FOR_MERGE, is not removed
475 * by ref_remove_duplicates() in favor of one of these
476 * opportunistic entries with FETCH_HEAD_IGNORE.
479 fetch_refspec = &refmap;
481 fetch_refspec = &remote->fetch;
483 for (i = 0; i < fetch_refspec->nr; i++)
484 get_fetch_map(ref_map, &fetch_refspec->items[i], &oref_tail, 1);
485 } else if (refmap.nr) {
486 die("--refmap option is only meaningful with command-line refspec(s).");
488 /* Use the defaults */
489 struct branch *branch = branch_get(NULL);
490 int has_merge = branch_has_merge_config(branch);
493 /* Note: has_merge implies non-NULL branch->remote_name */
494 (has_merge && !strcmp(branch->remote_name, remote->name)))) {
495 for (i = 0; i < remote->fetch.nr; i++) {
496 get_fetch_map(remote_refs, &remote->fetch.items[i], &tail, 0);
497 if (remote->fetch.items[i].dst &&
498 remote->fetch.items[i].dst[0])
500 if (!i && !has_merge && ref_map &&
501 !remote->fetch.items[0].pattern)
502 ref_map->fetch_head_status = FETCH_HEAD_MERGE;
505 * if the remote we're fetching from is the same
506 * as given in branch.<name>.remote, we add the
507 * ref given in branch.<name>.merge, too.
509 * Note: has_merge implies non-NULL branch->remote_name
512 !strcmp(branch->remote_name, remote->name))
513 add_merge_config(&ref_map, remote_refs, branch, &tail);
515 ref_map = get_remote_ref(remote_refs, "HEAD");
517 die(_("Couldn't find remote ref HEAD"));
518 ref_map->fetch_head_status = FETCH_HEAD_MERGE;
519 tail = &ref_map->next;
523 if (tags == TAGS_SET)
524 /* also fetch all tags */
525 get_fetch_map(remote_refs, tag_refspec, &tail, 0);
526 else if (tags == TAGS_DEFAULT && *autotags)
527 find_non_local_tags(remote_refs, &ref_map, &tail);
529 /* Now append any refs to be updated opportunistically: */
531 for (rm = orefs; rm; rm = rm->next) {
532 rm->fetch_head_status = FETCH_HEAD_IGNORE;
536 ref_map = ref_remove_duplicates(ref_map);
538 refname_hash_init(&existing_refs);
539 for_each_ref(add_one_refname, &existing_refs);
541 for (rm = ref_map; rm; rm = rm->next) {
543 const char *refname = rm->peer_ref->name;
544 struct refname_hash_entry *peer_item;
545 unsigned int hash = strhash(refname);
547 peer_item = hashmap_get_entry_from_hash(&existing_refs,
549 struct refname_hash_entry, ent);
551 struct object_id *old_oid = &peer_item->oid;
552 oidcpy(&rm->peer_ref->old_oid, old_oid);
556 hashmap_free_entries(&existing_refs, struct refname_hash_entry, ent);
561 #define STORE_REF_ERROR_OTHER 1
562 #define STORE_REF_ERROR_DF_CONFLICT 2
564 static int s_update_ref(const char *action,
569 char *rla = getenv("GIT_REFLOG_ACTION");
570 struct ref_transaction *transaction;
571 struct strbuf err = STRBUF_INIT;
572 int ret, df_conflict = 0;
577 rla = default_rla.buf;
578 msg = xstrfmt("%s: %s", rla, action);
580 transaction = ref_transaction_begin(&err);
582 ref_transaction_update(transaction, ref->name,
584 check_old ? &ref->old_oid : NULL,
588 ret = ref_transaction_commit(transaction, &err);
590 df_conflict = (ret == TRANSACTION_NAME_CONFLICT);
594 ref_transaction_free(transaction);
595 strbuf_release(&err);
599 ref_transaction_free(transaction);
600 error("%s", err.buf);
601 strbuf_release(&err);
603 return df_conflict ? STORE_REF_ERROR_DF_CONFLICT
604 : STORE_REF_ERROR_OTHER;
607 static int refcol_width = 10;
608 static int compact_format;
610 static void adjust_refcol_width(const struct ref *ref)
612 int max, rlen, llen, len;
614 /* uptodate lines are only shown on high verbosity level */
615 if (!verbosity && oideq(&ref->peer_ref->old_oid, &ref->old_oid))
618 max = term_columns();
619 rlen = utf8_strwidth(prettify_refname(ref->name));
621 llen = utf8_strwidth(prettify_refname(ref->peer_ref->name));
624 * rough estimation to see if the output line is too long and
625 * should not be counted (we can't do precise calculation
626 * anyway because we don't know if the error explanation part
627 * will be printed in update_local_ref)
629 if (compact_format) {
633 len = 21 /* flag and summary */ + rlen + 4 /* -> */ + llen;
638 * Not precise calculation for compact mode because '*' can
639 * appear on the left hand side of '->' and shrink the column
642 if (refcol_width < rlen)
646 static void prepare_format_display(struct ref *ref_map)
649 const char *format = "full";
651 git_config_get_string_tmp("fetch.output", &format);
652 if (!strcasecmp(format, "full"))
654 else if (!strcasecmp(format, "compact"))
657 die(_("configuration fetch.output contains invalid value %s"),
660 for (rm = ref_map; rm; rm = rm->next) {
661 if (rm->status == REF_STATUS_REJECT_SHALLOW ||
663 !strcmp(rm->name, "HEAD"))
666 adjust_refcol_width(rm);
670 static void print_remote_to_local(struct strbuf *display,
671 const char *remote, const char *local)
673 strbuf_addf(display, "%-*s -> %s", refcol_width, remote, local);
676 static int find_and_replace(struct strbuf *haystack,
678 const char *placeholder)
680 const char *p = NULL;
683 nlen = strlen(needle);
684 if (ends_with(haystack->buf, needle))
685 p = haystack->buf + haystack->len - nlen;
687 p = strstr(haystack->buf, needle);
691 if (p > haystack->buf && p[-1] != '/')
695 if (plen > nlen && p[nlen] != '/')
698 strbuf_splice(haystack, p - haystack->buf, nlen,
699 placeholder, strlen(placeholder));
703 static void print_compact(struct strbuf *display,
704 const char *remote, const char *local)
706 struct strbuf r = STRBUF_INIT;
707 struct strbuf l = STRBUF_INIT;
709 if (!strcmp(remote, local)) {
710 strbuf_addf(display, "%-*s -> *", refcol_width, remote);
714 strbuf_addstr(&r, remote);
715 strbuf_addstr(&l, local);
717 if (!find_and_replace(&r, local, "*"))
718 find_and_replace(&l, remote, "*");
719 print_remote_to_local(display, r.buf, l.buf);
725 static void format_display(struct strbuf *display, char code,
726 const char *summary, const char *error,
727 const char *remote, const char *local,
730 int width = (summary_width + strlen(summary) - gettext_width(summary));
732 strbuf_addf(display, "%c %-*s ", code, width, summary);
734 print_remote_to_local(display, remote, local);
736 print_compact(display, remote, local);
738 strbuf_addf(display, " (%s)", error);
741 static int update_local_ref(struct ref *ref,
743 const struct ref *remote_ref,
744 struct strbuf *display,
747 struct commit *current = NULL, *updated;
748 enum object_type type;
749 struct branch *current_branch = branch_get(NULL);
750 const char *pretty_ref = prettify_refname(ref->name);
751 int fast_forward = 0;
753 type = oid_object_info(the_repository, &ref->new_oid, NULL);
755 die(_("object %s not found"), oid_to_hex(&ref->new_oid));
757 if (oideq(&ref->old_oid, &ref->new_oid)) {
759 format_display(display, '=', _("[up to date]"), NULL,
760 remote, pretty_ref, summary_width);
764 if (current_branch &&
765 !strcmp(ref->name, current_branch->name) &&
766 !(update_head_ok || is_bare_repository()) &&
767 !is_null_oid(&ref->old_oid)) {
769 * If this is the head, and it's not okay to update
770 * the head, and the old value of the head isn't empty...
772 format_display(display, '!', _("[rejected]"),
773 _("can't fetch in current branch"),
774 remote, pretty_ref, summary_width);
778 if (!is_null_oid(&ref->old_oid) &&
779 starts_with(ref->name, "refs/tags/")) {
780 if (force || ref->force) {
782 r = s_update_ref("updating tag", ref, 0);
783 format_display(display, r ? '!' : 't', _("[tag update]"),
784 r ? _("unable to update local ref") : NULL,
785 remote, pretty_ref, summary_width);
788 format_display(display, '!', _("[rejected]"), _("would clobber existing tag"),
789 remote, pretty_ref, summary_width);
794 current = lookup_commit_reference_gently(the_repository,
796 updated = lookup_commit_reference_gently(the_repository,
798 if (!current || !updated) {
803 * Nicely describe the new ref we're fetching.
804 * Base this on the remote's ref name, as it's
805 * more likely to follow a standard layout.
807 const char *name = remote_ref ? remote_ref->name : "";
808 if (starts_with(name, "refs/tags/")) {
810 what = _("[new tag]");
811 } else if (starts_with(name, "refs/heads/")) {
812 msg = "storing head";
813 what = _("[new branch]");
816 what = _("[new ref]");
819 r = s_update_ref(msg, ref, 0);
820 format_display(display, r ? '!' : '*', what,
821 r ? _("unable to update local ref") : NULL,
822 remote, pretty_ref, summary_width);
826 if (fetch_show_forced_updates) {
827 uint64_t t_before = getnanotime();
828 fast_forward = in_merge_bases(current, updated);
829 forced_updates_ms += (getnanotime() - t_before) / 1000000;
835 struct strbuf quickref = STRBUF_INIT;
838 strbuf_add_unique_abbrev(&quickref, ¤t->object.oid, DEFAULT_ABBREV);
839 strbuf_addstr(&quickref, "..");
840 strbuf_add_unique_abbrev(&quickref, &ref->new_oid, DEFAULT_ABBREV);
841 r = s_update_ref("fast-forward", ref, 1);
842 format_display(display, r ? '!' : ' ', quickref.buf,
843 r ? _("unable to update local ref") : NULL,
844 remote, pretty_ref, summary_width);
845 strbuf_release(&quickref);
847 } else if (force || ref->force) {
848 struct strbuf quickref = STRBUF_INIT;
850 strbuf_add_unique_abbrev(&quickref, ¤t->object.oid, DEFAULT_ABBREV);
851 strbuf_addstr(&quickref, "...");
852 strbuf_add_unique_abbrev(&quickref, &ref->new_oid, DEFAULT_ABBREV);
853 r = s_update_ref("forced-update", ref, 1);
854 format_display(display, r ? '!' : '+', quickref.buf,
855 r ? _("unable to update local ref") : _("forced update"),
856 remote, pretty_ref, summary_width);
857 strbuf_release(&quickref);
860 format_display(display, '!', _("[rejected]"), _("non-fast-forward"),
861 remote, pretty_ref, summary_width);
866 static int iterate_ref_map(void *cb_data, struct object_id *oid)
868 struct ref **rm = cb_data;
869 struct ref *ref = *rm;
871 while (ref && ref->status == REF_STATUS_REJECT_SHALLOW)
874 return -1; /* end of the list */
876 oidcpy(oid, &ref->old_oid);
880 static const char warn_show_forced_updates[] =
881 N_("Fetch normally indicates which branches had a forced update,\n"
882 "but that check has been disabled. To re-enable, use '--show-forced-updates'\n"
883 "flag or run 'git config fetch.showForcedUpdates true'.");
884 static const char warn_time_show_forced_updates[] =
885 N_("It took %.2f seconds to check forced updates. You can use\n"
886 "'--no-show-forced-updates' or run 'git config fetch.showForcedUpdates false'\n"
887 " to avoid this check.\n");
889 static int store_updated_refs(const char *raw_url, const char *remote_name,
890 int connectivity_checked, struct ref *ref_map)
893 struct commit *commit;
894 int url_len, i, rc = 0;
895 struct strbuf note = STRBUF_INIT;
896 const char *what, *kind;
899 const char *filename = (!write_fetch_head
901 : git_path_fetch_head(the_repository));
903 int summary_width = transport_summary_width(ref_map);
905 fp = fopen(filename, "a");
907 return error_errno(_("cannot open %s"), filename);
910 url = transport_anonymize_url(raw_url);
912 url = xstrdup("foreign");
914 if (!connectivity_checked) {
915 struct check_connected_options opt = CHECK_CONNECTED_INIT;
918 if (check_connected(iterate_ref_map, &rm, &opt)) {
919 rc = error(_("%s did not send all necessary objects\n"), url);
924 prepare_format_display(ref_map);
927 * We do a pass for each fetch_head_status type in their enum order, so
928 * merged entries are written before not-for-merge. That lets readers
929 * use FETCH_HEAD as a refname to refer to the ref to be merged.
931 for (want_status = FETCH_HEAD_MERGE;
932 want_status <= FETCH_HEAD_IGNORE;
934 for (rm = ref_map; rm; rm = rm->next) {
935 struct ref *ref = NULL;
936 const char *merge_status_marker = "";
938 if (rm->status == REF_STATUS_REJECT_SHALLOW) {
939 if (want_status == FETCH_HEAD_MERGE)
940 warning(_("reject %s because shallow roots are not allowed to be updated"),
941 rm->peer_ref ? rm->peer_ref->name : rm->name);
945 commit = lookup_commit_reference_gently(the_repository,
949 rm->fetch_head_status = FETCH_HEAD_NOT_FOR_MERGE;
951 if (rm->fetch_head_status != want_status)
955 ref = alloc_ref(rm->peer_ref->name);
956 oidcpy(&ref->old_oid, &rm->peer_ref->old_oid);
957 oidcpy(&ref->new_oid, &rm->old_oid);
958 ref->force = rm->peer_ref->force;
961 if (recurse_submodules != RECURSE_SUBMODULES_OFF)
962 check_for_new_submodule_commits(&rm->old_oid);
964 if (!strcmp(rm->name, "HEAD")) {
968 else if (skip_prefix(rm->name, "refs/heads/", &what))
970 else if (skip_prefix(rm->name, "refs/tags/", &what))
972 else if (skip_prefix(rm->name, "refs/remotes/", &what))
973 kind = "remote-tracking branch";
979 url_len = strlen(url);
980 for (i = url_len - 1; url[i] == '/' && 0 <= i; i--)
983 if (4 < i && !strncmp(".git", url + i - 3, 4))
989 strbuf_addf(¬e, "%s ", kind);
990 strbuf_addf(¬e, "'%s' of ", what);
992 switch (rm->fetch_head_status) {
993 case FETCH_HEAD_NOT_FOR_MERGE:
994 merge_status_marker = "not-for-merge";
996 case FETCH_HEAD_MERGE:
997 fprintf(fp, "%s\t%s\t%s",
998 oid_to_hex(&rm->old_oid),
1001 for (i = 0; i < url_len; ++i)
1009 /* do not write anything to FETCH_HEAD */
1013 strbuf_reset(¬e);
1015 rc |= update_local_ref(ref, what, rm, ¬e,
1019 format_display(¬e, '*',
1020 *kind ? kind : "branch", NULL,
1021 *what ? what : "HEAD",
1022 "FETCH_HEAD", summary_width);
1024 if (verbosity >= 0 && !shown_url) {
1025 fprintf(stderr, _("From %.*s\n"),
1030 fprintf(stderr, " %s\n", note.buf);
1035 if (rc & STORE_REF_ERROR_DF_CONFLICT)
1036 error(_("some local refs could not be updated; try running\n"
1037 " 'git remote prune %s' to remove any old, conflicting "
1038 "branches"), remote_name);
1040 if (advice_fetch_show_forced_updates) {
1041 if (!fetch_show_forced_updates) {
1042 warning(_(warn_show_forced_updates));
1043 } else if (forced_updates_ms > FORCED_UPDATES_DELAY_WARNING_IN_MS) {
1044 warning(_(warn_time_show_forced_updates),
1045 forced_updates_ms / 1000.0);
1050 strbuf_release(¬e);
1057 * We would want to bypass the object transfer altogether if
1058 * everything we are going to fetch already exists and is connected
1061 static int check_exist_and_connected(struct ref *ref_map)
1063 struct ref *rm = ref_map;
1064 struct check_connected_options opt = CHECK_CONNECTED_INIT;
1068 * If we are deepening a shallow clone we already have these
1069 * objects reachable. Running rev-list here will return with
1070 * a good (0) exit status and we'll bypass the fetch that we
1071 * really need to perform. Claiming failure now will ensure
1072 * we perform the network exchange to deepen our history.
1078 * check_connected() allows objects to merely be promised, but
1079 * we need all direct targets to exist.
1081 for (r = rm; r; r = r->next) {
1082 if (!has_object_file_with_flags(&r->old_oid,
1083 OBJECT_INFO_SKIP_FETCH_OBJECT))
1088 return check_connected(iterate_ref_map, &rm, &opt);
1091 static int fetch_refs(struct transport *transport, struct ref *ref_map)
1093 int ret = check_exist_and_connected(ref_map);
1095 trace2_region_enter("fetch", "fetch_refs", the_repository);
1096 ret = transport_fetch_refs(transport, ref_map);
1097 trace2_region_leave("fetch", "fetch_refs", the_repository);
1101 * Keep the new pack's ".keep" file around to allow the caller
1102 * time to update refs to reference the new objects.
1105 transport_unlock_pack(transport);
1109 /* Update local refs based on the ref values fetched from a remote */
1110 static int consume_refs(struct transport *transport, struct ref *ref_map)
1112 int connectivity_checked = transport->smart_options
1113 ? transport->smart_options->connectivity_checked : 0;
1115 trace2_region_enter("fetch", "consume_refs", the_repository);
1116 ret = store_updated_refs(transport->url,
1117 transport->remote->name,
1118 connectivity_checked,
1120 transport_unlock_pack(transport);
1121 trace2_region_leave("fetch", "consume_refs", the_repository);
1125 static int prune_refs(struct refspec *rs, struct ref *ref_map,
1126 const char *raw_url)
1128 int url_len, i, result = 0;
1129 struct ref *ref, *stale_refs = get_stale_heads(rs, ref_map);
1131 int summary_width = transport_summary_width(stale_refs);
1132 const char *dangling_msg = dry_run
1133 ? _(" (%s will become dangling)")
1134 : _(" (%s has become dangling)");
1137 url = transport_anonymize_url(raw_url);
1139 url = xstrdup("foreign");
1141 url_len = strlen(url);
1142 for (i = url_len - 1; url[i] == '/' && 0 <= i; i--)
1146 if (4 < i && !strncmp(".git", url + i - 3, 4))
1150 struct string_list refnames = STRING_LIST_INIT_NODUP;
1152 for (ref = stale_refs; ref; ref = ref->next)
1153 string_list_append(&refnames, ref->name);
1155 result = delete_refs("fetch: prune", &refnames, 0);
1156 string_list_clear(&refnames, 0);
1159 if (verbosity >= 0) {
1160 for (ref = stale_refs; ref; ref = ref->next) {
1161 struct strbuf sb = STRBUF_INIT;
1163 fprintf(stderr, _("From %.*s\n"), url_len, url);
1166 format_display(&sb, '-', _("[deleted]"), NULL,
1167 _("(none)"), prettify_refname(ref->name),
1169 fprintf(stderr, " %s\n",sb.buf);
1170 strbuf_release(&sb);
1171 warn_dangling_symref(stderr, dangling_msg, ref->name);
1176 free_refs(stale_refs);
1180 static void check_not_current_branch(struct ref *ref_map)
1182 struct branch *current_branch = branch_get(NULL);
1184 if (is_bare_repository() || !current_branch)
1187 for (; ref_map; ref_map = ref_map->next)
1188 if (ref_map->peer_ref && !strcmp(current_branch->refname,
1189 ref_map->peer_ref->name))
1190 die(_("Refusing to fetch into current branch %s "
1191 "of non-bare repository"), current_branch->refname);
1194 static int truncate_fetch_head(void)
1196 const char *filename = git_path_fetch_head(the_repository);
1197 FILE *fp = fopen_for_writing(filename);
1200 return error_errno(_("cannot open %s"), filename);
1205 static void set_option(struct transport *transport, const char *name, const char *value)
1207 int r = transport_set_option(transport, name, value);
1209 die(_("Option \"%s\" value \"%s\" is not valid for %s"),
1210 name, value, transport->url);
1212 warning(_("Option \"%s\" is ignored for %s\n"),
1213 name, transport->url);
1217 static int add_oid(const char *refname, const struct object_id *oid, int flags,
1220 struct oid_array *oids = cb_data;
1222 oid_array_append(oids, oid);
1226 static void add_negotiation_tips(struct git_transport_options *smart_options)
1228 struct oid_array *oids = xcalloc(1, sizeof(*oids));
1231 for (i = 0; i < negotiation_tip.nr; i++) {
1232 const char *s = negotiation_tip.items[i].string;
1234 if (!has_glob_specials(s)) {
1235 struct object_id oid;
1236 if (get_oid(s, &oid))
1237 die("%s is not a valid object", s);
1238 oid_array_append(oids, &oid);
1242 for_each_glob_ref(add_oid, s, oids);
1243 if (old_nr == oids->nr)
1244 warning("Ignoring --negotiation-tip=%s because it does not match any refs",
1247 smart_options->negotiation_tips = oids;
1250 static struct transport *prepare_transport(struct remote *remote, int deepen)
1252 struct transport *transport;
1254 transport = transport_get(remote, NULL);
1255 transport_set_verbosity(transport, verbosity, progress);
1256 transport->family = family;
1258 set_option(transport, TRANS_OPT_UPLOADPACK, upload_pack);
1260 set_option(transport, TRANS_OPT_KEEP, "yes");
1262 set_option(transport, TRANS_OPT_DEPTH, depth);
1263 if (deepen && deepen_since)
1264 set_option(transport, TRANS_OPT_DEEPEN_SINCE, deepen_since);
1265 if (deepen && deepen_not.nr)
1266 set_option(transport, TRANS_OPT_DEEPEN_NOT,
1267 (const char *)&deepen_not);
1268 if (deepen_relative)
1269 set_option(transport, TRANS_OPT_DEEPEN_RELATIVE, "yes");
1271 set_option(transport, TRANS_OPT_UPDATE_SHALLOW, "yes");
1272 if (filter_options.choice) {
1274 expand_list_objects_filter_spec(&filter_options);
1275 set_option(transport, TRANS_OPT_LIST_OBJECTS_FILTER, spec);
1276 set_option(transport, TRANS_OPT_FROM_PROMISOR, "1");
1278 if (negotiation_tip.nr) {
1279 if (transport->smart_options)
1280 add_negotiation_tips(transport->smart_options);
1282 warning("Ignoring --negotiation-tip because the protocol does not support it.");
1287 static void backfill_tags(struct transport *transport, struct ref *ref_map)
1292 * Once we have set TRANS_OPT_DEEPEN_SINCE, we can't unset it
1293 * when remote helper is used (setting it to an empty string
1294 * is not unsetting). We could extend the remote helper
1295 * protocol for that, but for now, just force a new connection
1296 * without deepen-since. Similar story for deepen-not.
1298 cannot_reuse = transport->cannot_reuse ||
1299 deepen_since || deepen_not.nr;
1301 gsecondary = prepare_transport(transport->remote, 0);
1302 transport = gsecondary;
1305 transport_set_option(transport, TRANS_OPT_FOLLOWTAGS, NULL);
1306 transport_set_option(transport, TRANS_OPT_DEPTH, "0");
1307 transport_set_option(transport, TRANS_OPT_DEEPEN_RELATIVE, NULL);
1308 if (!fetch_refs(transport, ref_map))
1309 consume_refs(transport, ref_map);
1312 transport_disconnect(gsecondary);
1317 static int do_fetch(struct transport *transport,
1320 struct ref *ref_map;
1321 int autotags = (transport->remote->fetch_tags == 1);
1323 const struct ref *remote_refs;
1324 struct strvec ref_prefixes = STRVEC_INIT;
1325 int must_list_refs = 1;
1327 if (tags == TAGS_DEFAULT) {
1328 if (transport->remote->fetch_tags == 2)
1330 if (transport->remote->fetch_tags == -1)
1334 /* if not appending, truncate FETCH_HEAD */
1335 if (!append && write_fetch_head) {
1336 retcode = truncate_fetch_head();
1344 refspec_ref_prefixes(rs, &ref_prefixes);
1347 * We can avoid listing refs if all of them are exact
1351 for (i = 0; i < rs->nr; i++) {
1352 if (!rs->items[i].exact_sha1) {
1357 } else if (transport->remote && transport->remote->fetch.nr)
1358 refspec_ref_prefixes(&transport->remote->fetch, &ref_prefixes);
1360 if (tags == TAGS_SET || tags == TAGS_DEFAULT) {
1362 if (ref_prefixes.nr)
1363 strvec_push(&ref_prefixes, "refs/tags/");
1366 if (must_list_refs) {
1367 trace2_region_enter("fetch", "remote_refs", the_repository);
1368 remote_refs = transport_get_remote_refs(transport, &ref_prefixes);
1369 trace2_region_leave("fetch", "remote_refs", the_repository);
1373 strvec_clear(&ref_prefixes);
1375 ref_map = get_ref_map(transport->remote, remote_refs, rs,
1377 if (!update_head_ok)
1378 check_not_current_branch(ref_map);
1380 if (tags == TAGS_DEFAULT && autotags)
1381 transport_set_option(transport, TRANS_OPT_FOLLOWTAGS, "1");
1384 * We only prune based on refspecs specified
1385 * explicitly (via command line or configuration); we
1386 * don't care whether --tags was specified.
1389 prune_refs(rs, ref_map, transport->url);
1391 prune_refs(&transport->remote->fetch,
1396 if (fetch_refs(transport, ref_map) || consume_refs(transport, ref_map)) {
1403 struct branch *branch = branch_get("HEAD");
1405 struct ref *source_ref = NULL;
1408 * We're setting the upstream configuration for the
1409 * current branch. The relevant upstream is the
1410 * fetched branch that is meant to be merged with the
1411 * current one, i.e. the one fetched to FETCH_HEAD.
1413 * When there are several such branches, consider the
1414 * request ambiguous and err on the safe side by doing
1415 * nothing and just emit a warning.
1417 for (rm = ref_map; rm; rm = rm->next) {
1418 if (!rm->peer_ref) {
1420 warning(_("multiple branches detected, incompatible with --set-upstream"));
1428 if (!strcmp(source_ref->name, "HEAD") ||
1429 starts_with(source_ref->name, "refs/heads/"))
1430 install_branch_config(0,
1432 transport->remote->name,
1434 else if (starts_with(source_ref->name, "refs/remotes/"))
1435 warning(_("not setting upstream for a remote remote-tracking branch"));
1436 else if (starts_with(source_ref->name, "refs/tags/"))
1437 warning(_("not setting upstream for a remote tag"));
1439 warning(_("unknown branch type"));
1441 warning(_("no source branch found.\n"
1442 "you need to specify exactly one branch with the --set-upstream option."));
1448 /* if neither --no-tags nor --tags was specified, do automated tag
1450 if (tags == TAGS_DEFAULT && autotags) {
1451 struct ref **tail = &ref_map;
1453 find_non_local_tags(remote_refs, &ref_map, &tail);
1455 backfill_tags(transport, ref_map);
1463 static int get_one_remote_for_fetch(struct remote *remote, void *priv)
1465 struct string_list *list = priv;
1466 if (!remote->skip_default_update)
1467 string_list_append(list, remote->name);
1471 struct remote_group_data {
1473 struct string_list *list;
1476 static int get_remote_group(const char *key, const char *value, void *priv)
1478 struct remote_group_data *g = priv;
1480 if (skip_prefix(key, "remotes.", &key) && !strcmp(key, g->name)) {
1481 /* split list by white space */
1483 size_t wordlen = strcspn(value, " \t\n");
1486 string_list_append_nodup(g->list,
1487 xstrndup(value, wordlen));
1488 value += wordlen + (value[wordlen] != '\0');
1495 static int add_remote_or_group(const char *name, struct string_list *list)
1497 int prev_nr = list->nr;
1498 struct remote_group_data g;
1499 g.name = name; g.list = list;
1501 git_config(get_remote_group, &g);
1502 if (list->nr == prev_nr) {
1503 struct remote *remote = remote_get(name);
1504 if (!remote_is_configured(remote, 0))
1506 string_list_append(list, remote->name);
1511 static void add_options_to_argv(struct strvec *argv)
1514 strvec_push(argv, "--dry-run");
1516 strvec_push(argv, prune ? "--prune" : "--no-prune");
1517 if (prune_tags != -1)
1518 strvec_push(argv, prune_tags ? "--prune-tags" : "--no-prune-tags");
1520 strvec_push(argv, "--update-head-ok");
1522 strvec_push(argv, "--force");
1524 strvec_push(argv, "--keep");
1525 if (recurse_submodules == RECURSE_SUBMODULES_ON)
1526 strvec_push(argv, "--recurse-submodules");
1527 else if (recurse_submodules == RECURSE_SUBMODULES_ON_DEMAND)
1528 strvec_push(argv, "--recurse-submodules=on-demand");
1529 if (tags == TAGS_SET)
1530 strvec_push(argv, "--tags");
1531 else if (tags == TAGS_UNSET)
1532 strvec_push(argv, "--no-tags");
1534 strvec_push(argv, "-v");
1536 strvec_push(argv, "-v");
1537 else if (verbosity < 0)
1538 strvec_push(argv, "-q");
1542 /* Fetch multiple remotes in parallel */
1544 struct parallel_fetch_state {
1546 struct string_list *remotes;
1550 static int fetch_next_remote(struct child_process *cp, struct strbuf *out,
1551 void *cb, void **task_cb)
1553 struct parallel_fetch_state *state = cb;
1556 if (state->next < 0 || state->next >= state->remotes->nr)
1559 remote = state->remotes->items[state->next++].string;
1562 strvec_pushv(&cp->args, state->argv);
1563 strvec_push(&cp->args, remote);
1567 printf(_("Fetching %s\n"), remote);
1572 static int fetch_failed_to_start(struct strbuf *out, void *cb, void *task_cb)
1574 struct parallel_fetch_state *state = cb;
1575 const char *remote = task_cb;
1577 state->result = error(_("Could not fetch %s"), remote);
1582 static int fetch_finished(int result, struct strbuf *out,
1583 void *cb, void *task_cb)
1585 struct parallel_fetch_state *state = cb;
1586 const char *remote = task_cb;
1589 strbuf_addf(out, _("could not fetch '%s' (exit code: %d)\n"),
1597 static int fetch_multiple(struct string_list *list, int max_children)
1600 struct strvec argv = STRVEC_INIT;
1602 if (!append && write_fetch_head) {
1603 int errcode = truncate_fetch_head();
1608 strvec_pushl(&argv, "fetch", "--append", "--no-auto-gc",
1609 "--no-write-commit-graph", NULL);
1610 add_options_to_argv(&argv);
1612 if (max_children != 1 && list->nr != 1) {
1613 struct parallel_fetch_state state = { argv.v, list, 0, 0 };
1615 strvec_push(&argv, "--end-of-options");
1616 result = run_processes_parallel_tr2(max_children,
1618 &fetch_failed_to_start,
1621 "fetch", "parallel/fetch");
1624 result = state.result;
1626 for (i = 0; i < list->nr; i++) {
1627 const char *name = list->items[i].string;
1628 strvec_push(&argv, name);
1630 printf(_("Fetching %s\n"), name);
1631 if (run_command_v_opt(argv.v, RUN_GIT_CMD)) {
1632 error(_("Could not fetch %s"), name);
1638 strvec_clear(&argv);
1643 * Fetching from the promisor remote should use the given filter-spec
1644 * or inherit the default filter-spec from the config.
1646 static inline void fetch_one_setup_partial(struct remote *remote)
1649 * Explicit --no-filter argument overrides everything, regardless
1650 * of any prior partial clones and fetches.
1652 if (filter_options.no_filter)
1656 * If no prior partial clone/fetch and the current fetch DID NOT
1657 * request a partial-fetch, do a normal fetch.
1659 if (!has_promisor_remote() && !filter_options.choice)
1663 * If this is a partial-fetch request, we enable partial on
1664 * this repo if not already enabled and remember the given
1665 * filter-spec as the default for subsequent fetches to this
1668 if (filter_options.choice) {
1669 partial_clone_register(remote->name, &filter_options);
1674 * Do a partial-fetch from the promisor remote using either the
1675 * explicitly given filter-spec or inherit the filter-spec from
1678 if (!filter_options.choice)
1679 partial_clone_get_default_filter_spec(&filter_options, remote->name);
1683 static int fetch_one(struct remote *remote, int argc, const char **argv, int prune_tags_ok)
1685 struct refspec rs = REFSPEC_INIT_FETCH;
1688 int maybe_prune_tags;
1689 int remote_via_config = remote_is_configured(remote, 0);
1692 die(_("No remote repository specified. Please, specify either a URL or a\n"
1693 "remote name from which new revisions should be fetched."));
1695 gtransport = prepare_transport(remote, 1);
1698 /* no command line request */
1699 if (0 <= remote->prune)
1700 prune = remote->prune;
1701 else if (0 <= fetch_prune_config)
1702 prune = fetch_prune_config;
1704 prune = PRUNE_BY_DEFAULT;
1707 if (prune_tags < 0) {
1708 /* no command line request */
1709 if (0 <= remote->prune_tags)
1710 prune_tags = remote->prune_tags;
1711 else if (0 <= fetch_prune_tags_config)
1712 prune_tags = fetch_prune_tags_config;
1714 prune_tags = PRUNE_TAGS_BY_DEFAULT;
1717 maybe_prune_tags = prune_tags_ok && prune_tags;
1718 if (maybe_prune_tags && remote_via_config)
1719 refspec_append(&remote->fetch, TAG_REFSPEC);
1721 if (maybe_prune_tags && (argc || !remote_via_config))
1722 refspec_append(&rs, TAG_REFSPEC);
1724 for (i = 0; i < argc; i++) {
1725 if (!strcmp(argv[i], "tag")) {
1729 die(_("You need to specify a tag name."));
1731 tag = xstrfmt("refs/tags/%s:refs/tags/%s",
1733 refspec_append(&rs, tag);
1736 refspec_append(&rs, argv[i]);
1740 if (server_options.nr)
1741 gtransport->server_options = &server_options;
1743 sigchain_push_common(unlock_pack_on_signal);
1744 atexit(unlock_pack);
1745 sigchain_push(SIGPIPE, SIG_IGN);
1746 exit_code = do_fetch(gtransport, &rs);
1747 sigchain_pop(SIGPIPE);
1749 transport_disconnect(gtransport);
1754 int cmd_fetch(int argc, const char **argv, const char *prefix)
1757 struct string_list list = STRING_LIST_INIT_DUP;
1758 struct remote *remote = NULL;
1760 int prune_tags_ok = 1;
1762 packet_trace_identity("fetch");
1764 /* Record the command line for the reflog */
1765 strbuf_addstr(&default_rla, "fetch");
1766 for (i = 1; i < argc; i++) {
1767 /* This handles non-URLs gracefully */
1768 char *anon = transport_anonymize_url(argv[i]);
1770 strbuf_addf(&default_rla, " %s", anon);
1774 fetch_config_from_gitmodules(&submodule_fetch_jobs_config,
1775 &recurse_submodules);
1776 git_config(git_fetch_config, NULL);
1778 argc = parse_options(argc, argv, prefix,
1779 builtin_fetch_options, builtin_fetch_usage, 0);
1781 if (deepen_relative) {
1782 if (deepen_relative < 0)
1783 die(_("Negative depth in --deepen is not supported"));
1785 die(_("--deepen and --depth are mutually exclusive"));
1786 depth = xstrfmt("%d", deepen_relative);
1790 die(_("--depth and --unshallow cannot be used together"));
1791 else if (!is_repository_shallow(the_repository))
1792 die(_("--unshallow on a complete repository does not make sense"));
1794 depth = xstrfmt("%d", INFINITE_DEPTH);
1797 /* no need to be strict, transport_set_option() will validate it again */
1798 if (depth && atoi(depth) < 1)
1799 die(_("depth %s is not a positive number"), depth);
1800 if (depth || deepen_since || deepen_not.nr)
1803 /* FETCH_HEAD never gets updated in --dry-run mode */
1805 write_fetch_head = 0;
1809 die(_("fetch --all does not take a repository argument"));
1811 die(_("fetch --all does not make sense with refspecs"));
1812 (void) for_each_remote(get_one_remote_for_fetch, &list);
1813 } else if (argc == 0) {
1814 /* No arguments -- use default remote */
1815 remote = remote_get(NULL);
1816 } else if (multiple) {
1817 /* All arguments are assumed to be remotes or groups */
1818 for (i = 0; i < argc; i++)
1819 if (!add_remote_or_group(argv[i], &list))
1820 die(_("No such remote or remote group: %s"), argv[i]);
1822 /* Single remote or group */
1823 (void) add_remote_or_group(argv[0], &list);
1825 /* More than one remote */
1827 die(_("Fetching a group and specifying refspecs does not make sense"));
1829 /* Zero or one remotes */
1830 remote = remote_get(argv[0]);
1831 prune_tags_ok = (argc == 1);
1838 if (filter_options.choice || has_promisor_remote())
1839 fetch_one_setup_partial(remote);
1840 result = fetch_one(remote, argc, argv, prune_tags_ok);
1842 int max_children = max_jobs;
1844 if (filter_options.choice)
1845 die(_("--filter can only be used with the remote "
1846 "configured in extensions.partialclone"));
1848 if (max_children < 0)
1849 max_children = fetch_parallel_config;
1851 /* TODO should this also die if we have a previous partial-clone? */
1852 result = fetch_multiple(&list, max_children);
1855 if (!result && (recurse_submodules != RECURSE_SUBMODULES_OFF)) {
1856 struct strvec options = STRVEC_INIT;
1857 int max_children = max_jobs;
1859 if (max_children < 0)
1860 max_children = submodule_fetch_jobs_config;
1861 if (max_children < 0)
1862 max_children = fetch_parallel_config;
1864 add_options_to_argv(&options);
1865 result = fetch_populated_submodules(the_repository,
1869 recurse_submodules_default,
1872 strvec_clear(&options);
1875 string_list_clear(&list, 0);
1877 prepare_repo_settings(the_repository);
1878 if (fetch_write_commit_graph > 0 ||
1879 (fetch_write_commit_graph < 0 &&
1880 the_repository->settings.fetch_write_commit_graph)) {
1881 int commit_graph_flags = COMMIT_GRAPH_WRITE_SPLIT;
1884 commit_graph_flags |= COMMIT_GRAPH_WRITE_PROGRESS;
1886 write_commit_graph_reachable(the_repository->objects->odb,
1891 close_object_store(the_repository->objects);
1894 run_auto_gc(verbosity < 0);