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 prefetch = 0;
52 static int prune = -1; /* unspecified */
53 #define PRUNE_BY_DEFAULT 0 /* do we prune by default? */
55 static int fetch_prune_tags_config = -1; /* unspecified */
56 static int prune_tags = -1; /* unspecified */
57 #define PRUNE_TAGS_BY_DEFAULT 0 /* do we prune tags by default? */
59 static int all, append, dry_run, force, keep, multiple, update_head_ok;
60 static int write_fetch_head = 1;
61 static int verbosity, deepen_relative, set_upstream;
62 static int progress = -1;
63 static int enable_auto_gc = 1;
64 static int tags = TAGS_DEFAULT, unshallow, update_shallow, deepen;
65 static int max_jobs = -1, submodule_fetch_jobs_config = -1;
66 static int fetch_parallel_config = 1;
67 static int atomic_fetch;
68 static enum transport_family family;
69 static const char *depth;
70 static const char *deepen_since;
71 static const char *upload_pack;
72 static struct string_list deepen_not = STRING_LIST_INIT_NODUP;
73 static struct strbuf default_rla = STRBUF_INIT;
74 static struct transport *gtransport;
75 static struct transport *gsecondary;
76 static const char *submodule_prefix = "";
77 static int recurse_submodules = RECURSE_SUBMODULES_DEFAULT;
78 static int recurse_submodules_default = RECURSE_SUBMODULES_ON_DEMAND;
79 static int shown_url = 0;
80 static struct refspec refmap = REFSPEC_INIT_FETCH;
81 static struct list_objects_filter_options filter_options;
82 static struct string_list server_options = STRING_LIST_INIT_DUP;
83 static struct string_list negotiation_tip = STRING_LIST_INIT_NODUP;
84 static int fetch_write_commit_graph = -1;
85 static int stdin_refspecs = 0;
87 static int git_fetch_config(const char *k, const char *v, void *cb)
89 if (!strcmp(k, "fetch.prune")) {
90 fetch_prune_config = git_config_bool(k, v);
94 if (!strcmp(k, "fetch.prunetags")) {
95 fetch_prune_tags_config = git_config_bool(k, v);
99 if (!strcmp(k, "fetch.showforcedupdates")) {
100 fetch_show_forced_updates = git_config_bool(k, v);
104 if (!strcmp(k, "submodule.recurse")) {
105 int r = git_config_bool(k, v) ?
106 RECURSE_SUBMODULES_ON : RECURSE_SUBMODULES_OFF;
107 recurse_submodules = r;
110 if (!strcmp(k, "submodule.fetchjobs")) {
111 submodule_fetch_jobs_config = parse_submodule_fetchjobs(k, v);
113 } else if (!strcmp(k, "fetch.recursesubmodules")) {
114 recurse_submodules = parse_fetch_recurse_submodules_arg(k, v);
118 if (!strcmp(k, "fetch.parallel")) {
119 fetch_parallel_config = git_config_int(k, v);
120 if (fetch_parallel_config < 0)
121 die(_("fetch.parallel cannot be negative"));
125 return git_default_config(k, v, cb);
128 static int parse_refmap_arg(const struct option *opt, const char *arg, int unset)
130 BUG_ON_OPT_NEG(unset);
133 * "git fetch --refmap='' origin foo"
134 * can be used to tell the command not to store anywhere
136 refspec_append(&refmap, arg);
141 static struct option builtin_fetch_options[] = {
142 OPT__VERBOSITY(&verbosity),
143 OPT_BOOL(0, "all", &all,
144 N_("fetch from all remotes")),
145 OPT_BOOL(0, "set-upstream", &set_upstream,
146 N_("set upstream for git pull/fetch")),
147 OPT_BOOL('a', "append", &append,
148 N_("append to .git/FETCH_HEAD instead of overwriting")),
149 OPT_BOOL(0, "atomic", &atomic_fetch,
150 N_("use atomic transaction to update references")),
151 OPT_STRING(0, "upload-pack", &upload_pack, N_("path"),
152 N_("path to upload pack on remote end")),
153 OPT__FORCE(&force, N_("force overwrite of local reference"), 0),
154 OPT_BOOL('m', "multiple", &multiple,
155 N_("fetch from multiple remotes")),
156 OPT_SET_INT('t', "tags", &tags,
157 N_("fetch all tags and associated objects"), TAGS_SET),
158 OPT_SET_INT('n', NULL, &tags,
159 N_("do not fetch all tags (--no-tags)"), TAGS_UNSET),
160 OPT_INTEGER('j', "jobs", &max_jobs,
161 N_("number of submodules fetched in parallel")),
162 OPT_BOOL(0, "prefetch", &prefetch,
163 N_("modify the refspec to place all refs within refs/prefetch/")),
164 OPT_BOOL('p', "prune", &prune,
165 N_("prune remote-tracking branches no longer on remote")),
166 OPT_BOOL('P', "prune-tags", &prune_tags,
167 N_("prune local tags no longer on remote and clobber changed tags")),
168 OPT_CALLBACK_F(0, "recurse-submodules", &recurse_submodules, N_("on-demand"),
169 N_("control recursive fetching of submodules"),
170 PARSE_OPT_OPTARG, option_fetch_parse_recurse_submodules),
171 OPT_BOOL(0, "dry-run", &dry_run,
173 OPT_BOOL(0, "write-fetch-head", &write_fetch_head,
174 N_("write fetched references to the FETCH_HEAD file")),
175 OPT_BOOL('k', "keep", &keep, N_("keep downloaded pack")),
176 OPT_BOOL('u', "update-head-ok", &update_head_ok,
177 N_("allow updating of HEAD ref")),
178 OPT_BOOL(0, "progress", &progress, N_("force progress reporting")),
179 OPT_STRING(0, "depth", &depth, N_("depth"),
180 N_("deepen history of shallow clone")),
181 OPT_STRING(0, "shallow-since", &deepen_since, N_("time"),
182 N_("deepen history of shallow repository based on time")),
183 OPT_STRING_LIST(0, "shallow-exclude", &deepen_not, N_("revision"),
184 N_("deepen history of shallow clone, excluding rev")),
185 OPT_INTEGER(0, "deepen", &deepen_relative,
186 N_("deepen history of shallow clone")),
187 OPT_SET_INT_F(0, "unshallow", &unshallow,
188 N_("convert to a complete repository"),
190 { OPTION_STRING, 0, "submodule-prefix", &submodule_prefix, N_("dir"),
191 N_("prepend this to submodule path output"), PARSE_OPT_HIDDEN },
192 OPT_CALLBACK_F(0, "recurse-submodules-default",
193 &recurse_submodules_default, N_("on-demand"),
194 N_("default for recursive fetching of submodules "
195 "(lower priority than config files)"),
196 PARSE_OPT_HIDDEN, option_fetch_parse_recurse_submodules),
197 OPT_BOOL(0, "update-shallow", &update_shallow,
198 N_("accept refs that update .git/shallow")),
199 OPT_CALLBACK_F(0, "refmap", NULL, N_("refmap"),
200 N_("specify fetch refmap"), PARSE_OPT_NONEG, parse_refmap_arg),
201 OPT_STRING_LIST('o', "server-option", &server_options, N_("server-specific"), N_("option to transmit")),
202 OPT_SET_INT('4', "ipv4", &family, N_("use IPv4 addresses only"),
203 TRANSPORT_FAMILY_IPV4),
204 OPT_SET_INT('6', "ipv6", &family, N_("use IPv6 addresses only"),
205 TRANSPORT_FAMILY_IPV6),
206 OPT_STRING_LIST(0, "negotiation-tip", &negotiation_tip, N_("revision"),
207 N_("report that we have only objects reachable from this object")),
208 OPT_PARSE_LIST_OBJECTS_FILTER(&filter_options),
209 OPT_BOOL(0, "auto-maintenance", &enable_auto_gc,
210 N_("run 'maintenance --auto' after fetching")),
211 OPT_BOOL(0, "auto-gc", &enable_auto_gc,
212 N_("run 'maintenance --auto' after fetching")),
213 OPT_BOOL(0, "show-forced-updates", &fetch_show_forced_updates,
214 N_("check for forced-updates on all updated branches")),
215 OPT_BOOL(0, "write-commit-graph", &fetch_write_commit_graph,
216 N_("write the commit-graph after fetching")),
217 OPT_BOOL(0, "stdin", &stdin_refspecs,
218 N_("accept refspecs from stdin")),
222 static void unlock_pack(void)
225 transport_unlock_pack(gtransport);
227 transport_unlock_pack(gsecondary);
230 static void unlock_pack_on_signal(int signo)
237 static void add_merge_config(struct ref **head,
238 const struct ref *remote_refs,
239 struct branch *branch,
244 for (i = 0; i < branch->merge_nr; i++) {
245 struct ref *rm, **old_tail = *tail;
246 struct refspec_item refspec;
248 for (rm = *head; rm; rm = rm->next) {
249 if (branch_merge_matches(branch, i, rm->name)) {
250 rm->fetch_head_status = FETCH_HEAD_MERGE;
258 * Not fetched to a remote-tracking branch? We need to fetch
259 * it anyway to allow this branch's "branch.$name.merge"
260 * to be honored by 'git pull', but we do not have to
261 * fail if branch.$name.merge is misconfigured to point
262 * at a nonexisting branch. If we were indeed called by
263 * 'git pull', it will notice the misconfiguration because
264 * there is no entry in the resulting FETCH_HEAD marked
267 memset(&refspec, 0, sizeof(refspec));
268 refspec.src = branch->merge[i]->src;
269 get_fetch_map(remote_refs, &refspec, tail, 1);
270 for (rm = *old_tail; rm; rm = rm->next)
271 rm->fetch_head_status = FETCH_HEAD_MERGE;
275 static void create_fetch_oidset(struct ref **head, struct oidset *out)
277 struct ref *rm = *head;
279 oidset_insert(out, &rm->old_oid);
284 struct refname_hash_entry {
285 struct hashmap_entry ent;
286 struct object_id oid;
288 char refname[FLEX_ARRAY];
291 static int refname_hash_entry_cmp(const void *hashmap_cmp_fn_data,
292 const struct hashmap_entry *eptr,
293 const struct hashmap_entry *entry_or_key,
296 const struct refname_hash_entry *e1, *e2;
298 e1 = container_of(eptr, const struct refname_hash_entry, ent);
299 e2 = container_of(entry_or_key, const struct refname_hash_entry, ent);
300 return strcmp(e1->refname, keydata ? keydata : e2->refname);
303 static struct refname_hash_entry *refname_hash_add(struct hashmap *map,
305 const struct object_id *oid)
307 struct refname_hash_entry *ent;
308 size_t len = strlen(refname);
310 FLEX_ALLOC_MEM(ent, refname, refname, len);
311 hashmap_entry_init(&ent->ent, strhash(refname));
312 oidcpy(&ent->oid, oid);
313 hashmap_add(map, &ent->ent);
317 static int add_one_refname(const char *refname,
318 const struct object_id *oid,
319 int flag, void *cbdata)
321 struct hashmap *refname_map = cbdata;
323 (void) refname_hash_add(refname_map, refname, oid);
327 static void refname_hash_init(struct hashmap *map)
329 hashmap_init(map, refname_hash_entry_cmp, NULL, 0);
332 static int refname_hash_exists(struct hashmap *map, const char *refname)
334 return !!hashmap_get_from_hash(map, strhash(refname), refname);
337 static void clear_item(struct refname_hash_entry *item)
342 static void find_non_local_tags(const struct ref *refs,
346 struct hashmap existing_refs;
347 struct hashmap remote_refs;
348 struct oidset fetch_oids = OIDSET_INIT;
349 struct string_list remote_refs_list = STRING_LIST_INIT_NODUP;
350 struct string_list_item *remote_ref_item;
351 const struct ref *ref;
352 struct refname_hash_entry *item = NULL;
353 const int quick_flags = OBJECT_INFO_QUICK | OBJECT_INFO_SKIP_FETCH_OBJECT;
355 refname_hash_init(&existing_refs);
356 refname_hash_init(&remote_refs);
357 create_fetch_oidset(head, &fetch_oids);
359 for_each_ref(add_one_refname, &existing_refs);
360 for (ref = refs; ref; ref = ref->next) {
361 if (!starts_with(ref->name, "refs/tags/"))
365 * The peeled ref always follows the matching base
366 * ref, so if we see a peeled ref that we don't want
367 * to fetch then we can mark the ref entry in the list
368 * as one to ignore by setting util to NULL.
370 if (ends_with(ref->name, "^{}")) {
372 !has_object_file_with_flags(&ref->old_oid, quick_flags) &&
373 !oidset_contains(&fetch_oids, &ref->old_oid) &&
374 !has_object_file_with_flags(&item->oid, quick_flags) &&
375 !oidset_contains(&fetch_oids, &item->oid))
382 * If item is non-NULL here, then we previously saw a
383 * ref not followed by a peeled reference, so we need
384 * to check if it is a lightweight tag that we want to
388 !has_object_file_with_flags(&item->oid, quick_flags) &&
389 !oidset_contains(&fetch_oids, &item->oid))
394 /* skip duplicates and refs that we already have */
395 if (refname_hash_exists(&remote_refs, ref->name) ||
396 refname_hash_exists(&existing_refs, ref->name))
399 item = refname_hash_add(&remote_refs, ref->name, &ref->old_oid);
400 string_list_insert(&remote_refs_list, ref->name);
402 hashmap_clear_and_free(&existing_refs, struct refname_hash_entry, ent);
405 * We may have a final lightweight tag that needs to be
406 * checked to see if it needs fetching.
409 !has_object_file_with_flags(&item->oid, quick_flags) &&
410 !oidset_contains(&fetch_oids, &item->oid))
414 * For all the tags in the remote_refs_list,
415 * add them to the list of refs to be fetched
417 for_each_string_list_item(remote_ref_item, &remote_refs_list) {
418 const char *refname = remote_ref_item->string;
420 unsigned int hash = strhash(refname);
422 item = hashmap_get_entry_from_hash(&remote_refs, hash, refname,
423 struct refname_hash_entry, ent);
425 BUG("unseen remote ref?");
427 /* Unless we have already decided to ignore this item... */
431 rm = alloc_ref(item->refname);
432 rm->peer_ref = alloc_ref(item->refname);
433 oidcpy(&rm->old_oid, &item->oid);
437 hashmap_clear_and_free(&remote_refs, struct refname_hash_entry, ent);
438 string_list_clear(&remote_refs_list, 0);
439 oidset_clear(&fetch_oids);
442 static void filter_prefetch_refspec(struct refspec *rs)
449 for (i = 0; i < rs->nr; i++) {
450 struct strbuf new_dst = STRBUF_INIT;
452 const char *sub = NULL;
454 if (rs->items[i].negative)
456 if (!rs->items[i].dst ||
458 !strncmp(rs->items[i].src, "refs/tags/", 10))) {
461 free(rs->items[i].src);
462 free(rs->items[i].dst);
464 for (j = i + 1; j < rs->nr; j++) {
465 rs->items[j - 1] = rs->items[j];
466 rs->raw[j - 1] = rs->raw[j];
473 old_dst = rs->items[i].dst;
474 strbuf_addstr(&new_dst, "refs/prefetch/");
477 * If old_dst starts with "refs/", then place
478 * sub after that prefix. Otherwise, start at
479 * the beginning of the string.
481 if (!skip_prefix(old_dst, "refs/", &sub))
483 strbuf_addstr(&new_dst, sub);
485 rs->items[i].dst = strbuf_detach(&new_dst, NULL);
486 rs->items[i].force = 1;
492 static struct ref *get_ref_map(struct remote *remote,
493 const struct ref *remote_refs,
495 int tags, int *autotags)
499 struct ref *ref_map = NULL;
500 struct ref **tail = &ref_map;
502 /* opportunistically-updated references: */
503 struct ref *orefs = NULL, **oref_tail = &orefs;
505 struct hashmap existing_refs;
506 int existing_refs_populated = 0;
508 filter_prefetch_refspec(rs);
510 filter_prefetch_refspec(&remote->fetch);
513 struct refspec *fetch_refspec;
515 for (i = 0; i < rs->nr; i++) {
516 get_fetch_map(remote_refs, &rs->items[i], &tail, 0);
517 if (rs->items[i].dst && rs->items[i].dst[0])
520 /* Merge everything on the command line (but not --tags) */
521 for (rm = ref_map; rm; rm = rm->next)
522 rm->fetch_head_status = FETCH_HEAD_MERGE;
525 * For any refs that we happen to be fetching via
526 * command-line arguments, the destination ref might
527 * have been missing or have been different than the
528 * remote-tracking ref that would be derived from the
529 * configured refspec. In these cases, we want to
530 * take the opportunity to update their configured
531 * remote-tracking reference. However, we do not want
532 * to mention these entries in FETCH_HEAD at all, as
533 * they would simply be duplicates of existing
534 * entries, so we set them FETCH_HEAD_IGNORE below.
536 * We compute these entries now, based only on the
537 * refspecs specified on the command line. But we add
538 * them to the list following the refspecs resulting
539 * from the tags option so that one of the latter,
540 * which has FETCH_HEAD_NOT_FOR_MERGE, is not removed
541 * by ref_remove_duplicates() in favor of one of these
542 * opportunistic entries with FETCH_HEAD_IGNORE.
545 fetch_refspec = &refmap;
547 fetch_refspec = &remote->fetch;
549 for (i = 0; i < fetch_refspec->nr; i++)
550 get_fetch_map(ref_map, &fetch_refspec->items[i], &oref_tail, 1);
551 } else if (refmap.nr) {
552 die("--refmap option is only meaningful with command-line refspec(s).");
554 /* Use the defaults */
555 struct branch *branch = branch_get(NULL);
556 int has_merge = branch_has_merge_config(branch);
559 /* Note: has_merge implies non-NULL branch->remote_name */
560 (has_merge && !strcmp(branch->remote_name, remote->name)))) {
561 for (i = 0; i < remote->fetch.nr; i++) {
562 get_fetch_map(remote_refs, &remote->fetch.items[i], &tail, 0);
563 if (remote->fetch.items[i].dst &&
564 remote->fetch.items[i].dst[0])
566 if (!i && !has_merge && ref_map &&
567 !remote->fetch.items[0].pattern)
568 ref_map->fetch_head_status = FETCH_HEAD_MERGE;
571 * if the remote we're fetching from is the same
572 * as given in branch.<name>.remote, we add the
573 * ref given in branch.<name>.merge, too.
575 * Note: has_merge implies non-NULL branch->remote_name
578 !strcmp(branch->remote_name, remote->name))
579 add_merge_config(&ref_map, remote_refs, branch, &tail);
580 } else if (!prefetch) {
581 ref_map = get_remote_ref(remote_refs, "HEAD");
583 die(_("Couldn't find remote ref HEAD"));
584 ref_map->fetch_head_status = FETCH_HEAD_MERGE;
585 tail = &ref_map->next;
589 if (tags == TAGS_SET)
590 /* also fetch all tags */
591 get_fetch_map(remote_refs, tag_refspec, &tail, 0);
592 else if (tags == TAGS_DEFAULT && *autotags)
593 find_non_local_tags(remote_refs, &ref_map, &tail);
595 /* Now append any refs to be updated opportunistically: */
597 for (rm = orefs; rm; rm = rm->next) {
598 rm->fetch_head_status = FETCH_HEAD_IGNORE;
603 * apply negative refspecs first, before we remove duplicates. This is
604 * necessary as negative refspecs might remove an otherwise conflicting
608 ref_map = apply_negative_refspecs(ref_map, rs);
610 ref_map = apply_negative_refspecs(ref_map, &remote->fetch);
612 ref_map = ref_remove_duplicates(ref_map);
614 for (rm = ref_map; rm; rm = rm->next) {
616 const char *refname = rm->peer_ref->name;
617 struct refname_hash_entry *peer_item;
618 unsigned int hash = strhash(refname);
620 if (!existing_refs_populated) {
621 refname_hash_init(&existing_refs);
622 for_each_ref(add_one_refname, &existing_refs);
623 existing_refs_populated = 1;
626 peer_item = hashmap_get_entry_from_hash(&existing_refs,
628 struct refname_hash_entry, ent);
630 struct object_id *old_oid = &peer_item->oid;
631 oidcpy(&rm->peer_ref->old_oid, old_oid);
635 if (existing_refs_populated)
636 hashmap_clear_and_free(&existing_refs, struct refname_hash_entry, ent);
641 #define STORE_REF_ERROR_OTHER 1
642 #define STORE_REF_ERROR_DF_CONFLICT 2
644 static int s_update_ref(const char *action,
646 struct ref_transaction *transaction,
650 char *rla = getenv("GIT_REFLOG_ACTION");
651 struct ref_transaction *our_transaction = NULL;
652 struct strbuf err = STRBUF_INIT;
658 rla = default_rla.buf;
659 msg = xstrfmt("%s: %s", rla, action);
662 * If no transaction was passed to us, we manage the transaction
663 * ourselves. Otherwise, we trust the caller to handle the transaction
667 transaction = our_transaction = ref_transaction_begin(&err);
669 ret = STORE_REF_ERROR_OTHER;
674 ret = ref_transaction_update(transaction, ref->name, &ref->new_oid,
675 check_old ? &ref->old_oid : NULL,
678 ret = STORE_REF_ERROR_OTHER;
682 if (our_transaction) {
683 switch (ref_transaction_commit(our_transaction, &err)) {
686 case TRANSACTION_NAME_CONFLICT:
687 ret = STORE_REF_ERROR_DF_CONFLICT;
690 ret = STORE_REF_ERROR_OTHER;
696 ref_transaction_free(our_transaction);
698 error("%s", err.buf);
699 strbuf_release(&err);
704 static int refcol_width = 10;
705 static int compact_format;
707 static void adjust_refcol_width(const struct ref *ref)
709 int max, rlen, llen, len;
711 /* uptodate lines are only shown on high verbosity level */
712 if (!verbosity && oideq(&ref->peer_ref->old_oid, &ref->old_oid))
715 max = term_columns();
716 rlen = utf8_strwidth(prettify_refname(ref->name));
718 llen = utf8_strwidth(prettify_refname(ref->peer_ref->name));
721 * rough estimation to see if the output line is too long and
722 * should not be counted (we can't do precise calculation
723 * anyway because we don't know if the error explanation part
724 * will be printed in update_local_ref)
726 if (compact_format) {
730 len = 21 /* flag and summary */ + rlen + 4 /* -> */ + llen;
735 * Not precise calculation for compact mode because '*' can
736 * appear on the left hand side of '->' and shrink the column
739 if (refcol_width < rlen)
743 static void prepare_format_display(struct ref *ref_map)
746 const char *format = "full";
748 git_config_get_string_tmp("fetch.output", &format);
749 if (!strcasecmp(format, "full"))
751 else if (!strcasecmp(format, "compact"))
754 die(_("configuration fetch.output contains invalid value %s"),
757 for (rm = ref_map; rm; rm = rm->next) {
758 if (rm->status == REF_STATUS_REJECT_SHALLOW ||
760 !strcmp(rm->name, "HEAD"))
763 adjust_refcol_width(rm);
767 static void print_remote_to_local(struct strbuf *display,
768 const char *remote, const char *local)
770 strbuf_addf(display, "%-*s -> %s", refcol_width, remote, local);
773 static int find_and_replace(struct strbuf *haystack,
775 const char *placeholder)
777 const char *p = NULL;
780 nlen = strlen(needle);
781 if (ends_with(haystack->buf, needle))
782 p = haystack->buf + haystack->len - nlen;
784 p = strstr(haystack->buf, needle);
788 if (p > haystack->buf && p[-1] != '/')
792 if (plen > nlen && p[nlen] != '/')
795 strbuf_splice(haystack, p - haystack->buf, nlen,
796 placeholder, strlen(placeholder));
800 static void print_compact(struct strbuf *display,
801 const char *remote, const char *local)
803 struct strbuf r = STRBUF_INIT;
804 struct strbuf l = STRBUF_INIT;
806 if (!strcmp(remote, local)) {
807 strbuf_addf(display, "%-*s -> *", refcol_width, remote);
811 strbuf_addstr(&r, remote);
812 strbuf_addstr(&l, local);
814 if (!find_and_replace(&r, local, "*"))
815 find_and_replace(&l, remote, "*");
816 print_remote_to_local(display, r.buf, l.buf);
822 static void format_display(struct strbuf *display, char code,
823 const char *summary, const char *error,
824 const char *remote, const char *local,
827 int width = (summary_width + strlen(summary) - gettext_width(summary));
829 strbuf_addf(display, "%c %-*s ", code, width, summary);
831 print_remote_to_local(display, remote, local);
833 print_compact(display, remote, local);
835 strbuf_addf(display, " (%s)", error);
838 static int update_local_ref(struct ref *ref,
839 struct ref_transaction *transaction,
841 const struct ref *remote_ref,
842 struct strbuf *display,
845 struct commit *current = NULL, *updated;
846 enum object_type type;
847 struct branch *current_branch = branch_get(NULL);
848 const char *pretty_ref = prettify_refname(ref->name);
849 int fast_forward = 0;
851 type = oid_object_info(the_repository, &ref->new_oid, NULL);
853 die(_("object %s not found"), oid_to_hex(&ref->new_oid));
855 if (oideq(&ref->old_oid, &ref->new_oid)) {
857 format_display(display, '=', _("[up to date]"), NULL,
858 remote, pretty_ref, summary_width);
862 if (current_branch &&
863 !strcmp(ref->name, current_branch->name) &&
864 !(update_head_ok || is_bare_repository()) &&
865 !is_null_oid(&ref->old_oid)) {
867 * If this is the head, and it's not okay to update
868 * the head, and the old value of the head isn't empty...
870 format_display(display, '!', _("[rejected]"),
871 _("can't fetch in current branch"),
872 remote, pretty_ref, summary_width);
876 if (!is_null_oid(&ref->old_oid) &&
877 starts_with(ref->name, "refs/tags/")) {
878 if (force || ref->force) {
880 r = s_update_ref("updating tag", ref, transaction, 0);
881 format_display(display, r ? '!' : 't', _("[tag update]"),
882 r ? _("unable to update local ref") : NULL,
883 remote, pretty_ref, summary_width);
886 format_display(display, '!', _("[rejected]"), _("would clobber existing tag"),
887 remote, pretty_ref, summary_width);
892 current = lookup_commit_reference_gently(the_repository,
894 updated = lookup_commit_reference_gently(the_repository,
896 if (!current || !updated) {
901 * Nicely describe the new ref we're fetching.
902 * Base this on the remote's ref name, as it's
903 * more likely to follow a standard layout.
905 const char *name = remote_ref ? remote_ref->name : "";
906 if (starts_with(name, "refs/tags/")) {
908 what = _("[new tag]");
909 } else if (starts_with(name, "refs/heads/")) {
910 msg = "storing head";
911 what = _("[new branch]");
914 what = _("[new ref]");
917 r = s_update_ref(msg, ref, transaction, 0);
918 format_display(display, r ? '!' : '*', what,
919 r ? _("unable to update local ref") : NULL,
920 remote, pretty_ref, summary_width);
924 if (fetch_show_forced_updates) {
925 uint64_t t_before = getnanotime();
926 fast_forward = in_merge_bases(current, updated);
927 forced_updates_ms += (getnanotime() - t_before) / 1000000;
933 struct strbuf quickref = STRBUF_INIT;
936 strbuf_add_unique_abbrev(&quickref, ¤t->object.oid, DEFAULT_ABBREV);
937 strbuf_addstr(&quickref, "..");
938 strbuf_add_unique_abbrev(&quickref, &ref->new_oid, DEFAULT_ABBREV);
939 r = s_update_ref("fast-forward", ref, transaction, 1);
940 format_display(display, r ? '!' : ' ', quickref.buf,
941 r ? _("unable to update local ref") : NULL,
942 remote, pretty_ref, summary_width);
943 strbuf_release(&quickref);
945 } else if (force || ref->force) {
946 struct strbuf quickref = STRBUF_INIT;
948 strbuf_add_unique_abbrev(&quickref, ¤t->object.oid, DEFAULT_ABBREV);
949 strbuf_addstr(&quickref, "...");
950 strbuf_add_unique_abbrev(&quickref, &ref->new_oid, DEFAULT_ABBREV);
951 r = s_update_ref("forced-update", ref, transaction, 1);
952 format_display(display, r ? '!' : '+', quickref.buf,
953 r ? _("unable to update local ref") : _("forced update"),
954 remote, pretty_ref, summary_width);
955 strbuf_release(&quickref);
958 format_display(display, '!', _("[rejected]"), _("non-fast-forward"),
959 remote, pretty_ref, summary_width);
964 static int iterate_ref_map(void *cb_data, struct object_id *oid)
966 struct ref **rm = cb_data;
967 struct ref *ref = *rm;
969 while (ref && ref->status == REF_STATUS_REJECT_SHALLOW)
972 return -1; /* end of the list */
974 oidcpy(oid, &ref->old_oid);
983 static int open_fetch_head(struct fetch_head *fetch_head)
985 const char *filename = git_path_fetch_head(the_repository);
987 if (write_fetch_head) {
988 fetch_head->fp = fopen(filename, "a");
990 return error_errno(_("cannot open %s"), filename);
991 strbuf_init(&fetch_head->buf, 0);
993 fetch_head->fp = NULL;
999 static void append_fetch_head(struct fetch_head *fetch_head,
1000 const struct object_id *old_oid,
1001 enum fetch_head_status fetch_head_status,
1003 const char *url, size_t url_len)
1005 char old_oid_hex[GIT_MAX_HEXSZ + 1];
1006 const char *merge_status_marker;
1009 if (!fetch_head->fp)
1012 switch (fetch_head_status) {
1013 case FETCH_HEAD_NOT_FOR_MERGE:
1014 merge_status_marker = "not-for-merge";
1016 case FETCH_HEAD_MERGE:
1017 merge_status_marker = "";
1020 /* do not write anything to FETCH_HEAD */
1024 strbuf_addf(&fetch_head->buf, "%s\t%s\t%s",
1025 oid_to_hex_r(old_oid_hex, old_oid), merge_status_marker, note);
1026 for (i = 0; i < url_len; ++i)
1028 strbuf_addstr(&fetch_head->buf, "\\n");
1030 strbuf_addch(&fetch_head->buf, url[i]);
1031 strbuf_addch(&fetch_head->buf, '\n');
1034 * When using an atomic fetch, we do not want to update FETCH_HEAD if
1035 * any of the reference updates fails. We thus have to write all
1036 * updates to a buffer first and only commit it as soon as all
1037 * references have been successfully updated.
1039 if (!atomic_fetch) {
1040 strbuf_write(&fetch_head->buf, fetch_head->fp);
1041 strbuf_reset(&fetch_head->buf);
1045 static void commit_fetch_head(struct fetch_head *fetch_head)
1047 if (!fetch_head->fp || !atomic_fetch)
1049 strbuf_write(&fetch_head->buf, fetch_head->fp);
1052 static void close_fetch_head(struct fetch_head *fetch_head)
1054 if (!fetch_head->fp)
1057 fclose(fetch_head->fp);
1058 strbuf_release(&fetch_head->buf);
1061 static const char warn_show_forced_updates[] =
1062 N_("Fetch normally indicates which branches had a forced update,\n"
1063 "but that check has been disabled. To re-enable, use '--show-forced-updates'\n"
1064 "flag or run 'git config fetch.showForcedUpdates true'.");
1065 static const char warn_time_show_forced_updates[] =
1066 N_("It took %.2f seconds to check forced updates. You can use\n"
1067 "'--no-show-forced-updates' or run 'git config fetch.showForcedUpdates false'\n"
1068 " to avoid this check.\n");
1070 static int store_updated_refs(const char *raw_url, const char *remote_name,
1071 int connectivity_checked, struct ref *ref_map)
1073 struct fetch_head fetch_head;
1074 struct commit *commit;
1075 int url_len, i, rc = 0;
1076 struct strbuf note = STRBUF_INIT, err = STRBUF_INIT;
1077 struct ref_transaction *transaction = NULL;
1078 const char *what, *kind;
1082 int summary_width = transport_summary_width(ref_map);
1084 rc = open_fetch_head(&fetch_head);
1089 url = transport_anonymize_url(raw_url);
1091 url = xstrdup("foreign");
1093 if (!connectivity_checked) {
1094 struct check_connected_options opt = CHECK_CONNECTED_INIT;
1097 if (check_connected(iterate_ref_map, &rm, &opt)) {
1098 rc = error(_("%s did not send all necessary objects\n"), url);
1104 transaction = ref_transaction_begin(&err);
1106 error("%s", err.buf);
1111 prepare_format_display(ref_map);
1114 * We do a pass for each fetch_head_status type in their enum order, so
1115 * merged entries are written before not-for-merge. That lets readers
1116 * use FETCH_HEAD as a refname to refer to the ref to be merged.
1118 for (want_status = FETCH_HEAD_MERGE;
1119 want_status <= FETCH_HEAD_IGNORE;
1121 for (rm = ref_map; rm; rm = rm->next) {
1122 struct ref *ref = NULL;
1124 if (rm->status == REF_STATUS_REJECT_SHALLOW) {
1125 if (want_status == FETCH_HEAD_MERGE)
1126 warning(_("reject %s because shallow roots are not allowed to be updated"),
1127 rm->peer_ref ? rm->peer_ref->name : rm->name);
1131 commit = lookup_commit_reference_gently(the_repository,
1135 rm->fetch_head_status = FETCH_HEAD_NOT_FOR_MERGE;
1137 if (rm->fetch_head_status != want_status)
1141 ref = alloc_ref(rm->peer_ref->name);
1142 oidcpy(&ref->old_oid, &rm->peer_ref->old_oid);
1143 oidcpy(&ref->new_oid, &rm->old_oid);
1144 ref->force = rm->peer_ref->force;
1147 if (recurse_submodules != RECURSE_SUBMODULES_OFF &&
1148 (!rm->peer_ref || !oideq(&ref->old_oid, &ref->new_oid))) {
1149 check_for_new_submodule_commits(&rm->old_oid);
1152 if (!strcmp(rm->name, "HEAD")) {
1156 else if (skip_prefix(rm->name, "refs/heads/", &what))
1158 else if (skip_prefix(rm->name, "refs/tags/", &what))
1160 else if (skip_prefix(rm->name, "refs/remotes/", &what))
1161 kind = "remote-tracking branch";
1167 url_len = strlen(url);
1168 for (i = url_len - 1; url[i] == '/' && 0 <= i; i--)
1171 if (4 < i && !strncmp(".git", url + i - 3, 4))
1174 strbuf_reset(¬e);
1177 strbuf_addf(¬e, "%s ", kind);
1178 strbuf_addf(¬e, "'%s' of ", what);
1181 append_fetch_head(&fetch_head, &rm->old_oid,
1182 rm->fetch_head_status,
1183 note.buf, url, url_len);
1185 strbuf_reset(¬e);
1187 rc |= update_local_ref(ref, transaction, what,
1188 rm, ¬e, summary_width);
1190 } else if (write_fetch_head || dry_run) {
1192 * Display fetches written to FETCH_HEAD (or
1193 * would be written to FETCH_HEAD, if --dry-run
1196 format_display(¬e, '*',
1197 *kind ? kind : "branch", NULL,
1198 *what ? what : "HEAD",
1199 "FETCH_HEAD", summary_width);
1202 if (verbosity >= 0 && !shown_url) {
1203 fprintf(stderr, _("From %.*s\n"),
1208 fprintf(stderr, " %s\n", note.buf);
1213 if (!rc && transaction) {
1214 rc = ref_transaction_commit(transaction, &err);
1216 error("%s", err.buf);
1222 commit_fetch_head(&fetch_head);
1224 if (rc & STORE_REF_ERROR_DF_CONFLICT)
1225 error(_("some local refs could not be updated; try running\n"
1226 " 'git remote prune %s' to remove any old, conflicting "
1227 "branches"), remote_name);
1229 if (advice_fetch_show_forced_updates) {
1230 if (!fetch_show_forced_updates) {
1231 warning(_(warn_show_forced_updates));
1232 } else if (forced_updates_ms > FORCED_UPDATES_DELAY_WARNING_IN_MS) {
1233 warning(_(warn_time_show_forced_updates),
1234 forced_updates_ms / 1000.0);
1239 strbuf_release(¬e);
1240 strbuf_release(&err);
1241 ref_transaction_free(transaction);
1243 close_fetch_head(&fetch_head);
1248 * We would want to bypass the object transfer altogether if
1249 * everything we are going to fetch already exists and is connected
1252 static int check_exist_and_connected(struct ref *ref_map)
1254 struct ref *rm = ref_map;
1255 struct check_connected_options opt = CHECK_CONNECTED_INIT;
1259 * If we are deepening a shallow clone we already have these
1260 * objects reachable. Running rev-list here will return with
1261 * a good (0) exit status and we'll bypass the fetch that we
1262 * really need to perform. Claiming failure now will ensure
1263 * we perform the network exchange to deepen our history.
1269 * check_connected() allows objects to merely be promised, but
1270 * we need all direct targets to exist.
1272 for (r = rm; r; r = r->next) {
1273 if (!has_object_file_with_flags(&r->old_oid,
1274 OBJECT_INFO_SKIP_FETCH_OBJECT))
1279 return check_connected(iterate_ref_map, &rm, &opt);
1282 static int fetch_refs(struct transport *transport, struct ref *ref_map)
1284 int ret = check_exist_and_connected(ref_map);
1286 trace2_region_enter("fetch", "fetch_refs", the_repository);
1287 ret = transport_fetch_refs(transport, ref_map);
1288 trace2_region_leave("fetch", "fetch_refs", the_repository);
1292 * Keep the new pack's ".keep" file around to allow the caller
1293 * time to update refs to reference the new objects.
1296 transport_unlock_pack(transport);
1300 /* Update local refs based on the ref values fetched from a remote */
1301 static int consume_refs(struct transport *transport, struct ref *ref_map)
1303 int connectivity_checked = transport->smart_options
1304 ? transport->smart_options->connectivity_checked : 0;
1306 trace2_region_enter("fetch", "consume_refs", the_repository);
1307 ret = store_updated_refs(transport->url,
1308 transport->remote->name,
1309 connectivity_checked,
1311 transport_unlock_pack(transport);
1312 trace2_region_leave("fetch", "consume_refs", the_repository);
1316 static int prune_refs(struct refspec *rs, struct ref *ref_map,
1317 const char *raw_url)
1319 int url_len, i, result = 0;
1320 struct ref *ref, *stale_refs = get_stale_heads(rs, ref_map);
1322 int summary_width = transport_summary_width(stale_refs);
1323 const char *dangling_msg = dry_run
1324 ? _(" (%s will become dangling)")
1325 : _(" (%s has become dangling)");
1328 url = transport_anonymize_url(raw_url);
1330 url = xstrdup("foreign");
1332 url_len = strlen(url);
1333 for (i = url_len - 1; url[i] == '/' && 0 <= i; i--)
1337 if (4 < i && !strncmp(".git", url + i - 3, 4))
1341 struct string_list refnames = STRING_LIST_INIT_NODUP;
1343 for (ref = stale_refs; ref; ref = ref->next)
1344 string_list_append(&refnames, ref->name);
1346 result = delete_refs("fetch: prune", &refnames, 0);
1347 string_list_clear(&refnames, 0);
1350 if (verbosity >= 0) {
1351 for (ref = stale_refs; ref; ref = ref->next) {
1352 struct strbuf sb = STRBUF_INIT;
1354 fprintf(stderr, _("From %.*s\n"), url_len, url);
1357 format_display(&sb, '-', _("[deleted]"), NULL,
1358 _("(none)"), prettify_refname(ref->name),
1360 fprintf(stderr, " %s\n",sb.buf);
1361 strbuf_release(&sb);
1362 warn_dangling_symref(stderr, dangling_msg, ref->name);
1367 free_refs(stale_refs);
1371 static void check_not_current_branch(struct ref *ref_map)
1373 struct branch *current_branch = branch_get(NULL);
1375 if (is_bare_repository() || !current_branch)
1378 for (; ref_map; ref_map = ref_map->next)
1379 if (ref_map->peer_ref && !strcmp(current_branch->refname,
1380 ref_map->peer_ref->name))
1381 die(_("Refusing to fetch into current branch %s "
1382 "of non-bare repository"), current_branch->refname);
1385 static int truncate_fetch_head(void)
1387 const char *filename = git_path_fetch_head(the_repository);
1388 FILE *fp = fopen_for_writing(filename);
1391 return error_errno(_("cannot open %s"), filename);
1396 static void set_option(struct transport *transport, const char *name, const char *value)
1398 int r = transport_set_option(transport, name, value);
1400 die(_("Option \"%s\" value \"%s\" is not valid for %s"),
1401 name, value, transport->url);
1403 warning(_("Option \"%s\" is ignored for %s\n"),
1404 name, transport->url);
1408 static int add_oid(const char *refname, const struct object_id *oid, int flags,
1411 struct oid_array *oids = cb_data;
1413 oid_array_append(oids, oid);
1417 static void add_negotiation_tips(struct git_transport_options *smart_options)
1419 struct oid_array *oids = xcalloc(1, sizeof(*oids));
1422 for (i = 0; i < negotiation_tip.nr; i++) {
1423 const char *s = negotiation_tip.items[i].string;
1425 if (!has_glob_specials(s)) {
1426 struct object_id oid;
1427 if (get_oid(s, &oid))
1428 die("%s is not a valid object", s);
1429 oid_array_append(oids, &oid);
1433 for_each_glob_ref(add_oid, s, oids);
1434 if (old_nr == oids->nr)
1435 warning("Ignoring --negotiation-tip=%s because it does not match any refs",
1438 smart_options->negotiation_tips = oids;
1441 static struct transport *prepare_transport(struct remote *remote, int deepen)
1443 struct transport *transport;
1445 transport = transport_get(remote, NULL);
1446 transport_set_verbosity(transport, verbosity, progress);
1447 transport->family = family;
1449 set_option(transport, TRANS_OPT_UPLOADPACK, upload_pack);
1451 set_option(transport, TRANS_OPT_KEEP, "yes");
1453 set_option(transport, TRANS_OPT_DEPTH, depth);
1454 if (deepen && deepen_since)
1455 set_option(transport, TRANS_OPT_DEEPEN_SINCE, deepen_since);
1456 if (deepen && deepen_not.nr)
1457 set_option(transport, TRANS_OPT_DEEPEN_NOT,
1458 (const char *)&deepen_not);
1459 if (deepen_relative)
1460 set_option(transport, TRANS_OPT_DEEPEN_RELATIVE, "yes");
1462 set_option(transport, TRANS_OPT_UPDATE_SHALLOW, "yes");
1463 if (filter_options.choice) {
1465 expand_list_objects_filter_spec(&filter_options);
1466 set_option(transport, TRANS_OPT_LIST_OBJECTS_FILTER, spec);
1467 set_option(transport, TRANS_OPT_FROM_PROMISOR, "1");
1469 if (negotiation_tip.nr) {
1470 if (transport->smart_options)
1471 add_negotiation_tips(transport->smart_options);
1473 warning("Ignoring --negotiation-tip because the protocol does not support it.");
1478 static void backfill_tags(struct transport *transport, struct ref *ref_map)
1483 * Once we have set TRANS_OPT_DEEPEN_SINCE, we can't unset it
1484 * when remote helper is used (setting it to an empty string
1485 * is not unsetting). We could extend the remote helper
1486 * protocol for that, but for now, just force a new connection
1487 * without deepen-since. Similar story for deepen-not.
1489 cannot_reuse = transport->cannot_reuse ||
1490 deepen_since || deepen_not.nr;
1492 gsecondary = prepare_transport(transport->remote, 0);
1493 transport = gsecondary;
1496 transport_set_option(transport, TRANS_OPT_FOLLOWTAGS, NULL);
1497 transport_set_option(transport, TRANS_OPT_DEPTH, "0");
1498 transport_set_option(transport, TRANS_OPT_DEEPEN_RELATIVE, NULL);
1499 if (!fetch_refs(transport, ref_map))
1500 consume_refs(transport, ref_map);
1503 transport_disconnect(gsecondary);
1508 static int do_fetch(struct transport *transport,
1511 struct ref *ref_map;
1512 int autotags = (transport->remote->fetch_tags == 1);
1514 const struct ref *remote_refs;
1515 struct transport_ls_refs_options transport_ls_refs_options =
1516 TRANSPORT_LS_REFS_OPTIONS_INIT;
1517 int must_list_refs = 1;
1519 if (tags == TAGS_DEFAULT) {
1520 if (transport->remote->fetch_tags == 2)
1522 if (transport->remote->fetch_tags == -1)
1526 /* if not appending, truncate FETCH_HEAD */
1527 if (!append && write_fetch_head) {
1528 retcode = truncate_fetch_head();
1536 refspec_ref_prefixes(rs, &transport_ls_refs_options.ref_prefixes);
1539 * We can avoid listing refs if all of them are exact
1543 for (i = 0; i < rs->nr; i++) {
1544 if (!rs->items[i].exact_sha1) {
1549 } else if (transport->remote && transport->remote->fetch.nr)
1550 refspec_ref_prefixes(&transport->remote->fetch,
1551 &transport_ls_refs_options.ref_prefixes);
1553 if (tags == TAGS_SET || tags == TAGS_DEFAULT) {
1555 if (transport_ls_refs_options.ref_prefixes.nr)
1556 strvec_push(&transport_ls_refs_options.ref_prefixes,
1560 if (must_list_refs) {
1561 trace2_region_enter("fetch", "remote_refs", the_repository);
1562 remote_refs = transport_get_remote_refs(transport,
1563 &transport_ls_refs_options);
1564 trace2_region_leave("fetch", "remote_refs", the_repository);
1568 strvec_clear(&transport_ls_refs_options.ref_prefixes);
1570 ref_map = get_ref_map(transport->remote, remote_refs, rs,
1572 if (!update_head_ok)
1573 check_not_current_branch(ref_map);
1575 if (tags == TAGS_DEFAULT && autotags)
1576 transport_set_option(transport, TRANS_OPT_FOLLOWTAGS, "1");
1579 * We only prune based on refspecs specified
1580 * explicitly (via command line or configuration); we
1581 * don't care whether --tags was specified.
1584 prune_refs(rs, ref_map, transport->url);
1586 prune_refs(&transport->remote->fetch,
1591 if (fetch_refs(transport, ref_map) || consume_refs(transport, ref_map)) {
1598 struct branch *branch = branch_get("HEAD");
1600 struct ref *source_ref = NULL;
1603 * We're setting the upstream configuration for the
1604 * current branch. The relevant upstream is the
1605 * fetched branch that is meant to be merged with the
1606 * current one, i.e. the one fetched to FETCH_HEAD.
1608 * When there are several such branches, consider the
1609 * request ambiguous and err on the safe side by doing
1610 * nothing and just emit a warning.
1612 for (rm = ref_map; rm; rm = rm->next) {
1613 if (!rm->peer_ref) {
1615 warning(_("multiple branches detected, incompatible with --set-upstream"));
1623 if (!strcmp(source_ref->name, "HEAD") ||
1624 starts_with(source_ref->name, "refs/heads/"))
1625 install_branch_config(0,
1627 transport->remote->name,
1629 else if (starts_with(source_ref->name, "refs/remotes/"))
1630 warning(_("not setting upstream for a remote remote-tracking branch"));
1631 else if (starts_with(source_ref->name, "refs/tags/"))
1632 warning(_("not setting upstream for a remote tag"));
1634 warning(_("unknown branch type"));
1636 warning(_("no source branch found.\n"
1637 "you need to specify exactly one branch with the --set-upstream option."));
1643 /* if neither --no-tags nor --tags was specified, do automated tag
1645 if (tags == TAGS_DEFAULT && autotags) {
1646 struct ref **tail = &ref_map;
1648 find_non_local_tags(remote_refs, &ref_map, &tail);
1650 backfill_tags(transport, ref_map);
1658 static int get_one_remote_for_fetch(struct remote *remote, void *priv)
1660 struct string_list *list = priv;
1661 if (!remote->skip_default_update)
1662 string_list_append(list, remote->name);
1666 struct remote_group_data {
1668 struct string_list *list;
1671 static int get_remote_group(const char *key, const char *value, void *priv)
1673 struct remote_group_data *g = priv;
1675 if (skip_prefix(key, "remotes.", &key) && !strcmp(key, g->name)) {
1676 /* split list by white space */
1678 size_t wordlen = strcspn(value, " \t\n");
1681 string_list_append_nodup(g->list,
1682 xstrndup(value, wordlen));
1683 value += wordlen + (value[wordlen] != '\0');
1690 static int add_remote_or_group(const char *name, struct string_list *list)
1692 int prev_nr = list->nr;
1693 struct remote_group_data g;
1694 g.name = name; g.list = list;
1696 git_config(get_remote_group, &g);
1697 if (list->nr == prev_nr) {
1698 struct remote *remote = remote_get(name);
1699 if (!remote_is_configured(remote, 0))
1701 string_list_append(list, remote->name);
1706 static void add_options_to_argv(struct strvec *argv)
1709 strvec_push(argv, "--dry-run");
1711 strvec_push(argv, prune ? "--prune" : "--no-prune");
1712 if (prune_tags != -1)
1713 strvec_push(argv, prune_tags ? "--prune-tags" : "--no-prune-tags");
1715 strvec_push(argv, "--update-head-ok");
1717 strvec_push(argv, "--force");
1719 strvec_push(argv, "--keep");
1720 if (recurse_submodules == RECURSE_SUBMODULES_ON)
1721 strvec_push(argv, "--recurse-submodules");
1722 else if (recurse_submodules == RECURSE_SUBMODULES_ON_DEMAND)
1723 strvec_push(argv, "--recurse-submodules=on-demand");
1724 if (tags == TAGS_SET)
1725 strvec_push(argv, "--tags");
1726 else if (tags == TAGS_UNSET)
1727 strvec_push(argv, "--no-tags");
1729 strvec_push(argv, "-v");
1731 strvec_push(argv, "-v");
1732 else if (verbosity < 0)
1733 strvec_push(argv, "-q");
1734 if (family == TRANSPORT_FAMILY_IPV4)
1735 strvec_push(argv, "--ipv4");
1736 else if (family == TRANSPORT_FAMILY_IPV6)
1737 strvec_push(argv, "--ipv6");
1740 /* Fetch multiple remotes in parallel */
1742 struct parallel_fetch_state {
1744 struct string_list *remotes;
1748 static int fetch_next_remote(struct child_process *cp, struct strbuf *out,
1749 void *cb, void **task_cb)
1751 struct parallel_fetch_state *state = cb;
1754 if (state->next < 0 || state->next >= state->remotes->nr)
1757 remote = state->remotes->items[state->next++].string;
1760 strvec_pushv(&cp->args, state->argv);
1761 strvec_push(&cp->args, remote);
1765 printf(_("Fetching %s\n"), remote);
1770 static int fetch_failed_to_start(struct strbuf *out, void *cb, void *task_cb)
1772 struct parallel_fetch_state *state = cb;
1773 const char *remote = task_cb;
1775 state->result = error(_("Could not fetch %s"), remote);
1780 static int fetch_finished(int result, struct strbuf *out,
1781 void *cb, void *task_cb)
1783 struct parallel_fetch_state *state = cb;
1784 const char *remote = task_cb;
1787 strbuf_addf(out, _("could not fetch '%s' (exit code: %d)\n"),
1795 static int fetch_multiple(struct string_list *list, int max_children)
1798 struct strvec argv = STRVEC_INIT;
1800 if (!append && write_fetch_head) {
1801 int errcode = truncate_fetch_head();
1806 strvec_pushl(&argv, "fetch", "--append", "--no-auto-gc",
1807 "--no-write-commit-graph", NULL);
1808 add_options_to_argv(&argv);
1810 if (max_children != 1 && list->nr != 1) {
1811 struct parallel_fetch_state state = { argv.v, list, 0, 0 };
1813 strvec_push(&argv, "--end-of-options");
1814 result = run_processes_parallel_tr2(max_children,
1816 &fetch_failed_to_start,
1819 "fetch", "parallel/fetch");
1822 result = state.result;
1824 for (i = 0; i < list->nr; i++) {
1825 const char *name = list->items[i].string;
1826 strvec_push(&argv, name);
1828 printf(_("Fetching %s\n"), name);
1829 if (run_command_v_opt(argv.v, RUN_GIT_CMD)) {
1830 error(_("Could not fetch %s"), name);
1836 strvec_clear(&argv);
1841 * Fetching from the promisor remote should use the given filter-spec
1842 * or inherit the default filter-spec from the config.
1844 static inline void fetch_one_setup_partial(struct remote *remote)
1847 * Explicit --no-filter argument overrides everything, regardless
1848 * of any prior partial clones and fetches.
1850 if (filter_options.no_filter)
1854 * If no prior partial clone/fetch and the current fetch DID NOT
1855 * request a partial-fetch, do a normal fetch.
1857 if (!has_promisor_remote() && !filter_options.choice)
1861 * If this is a partial-fetch request, we enable partial on
1862 * this repo if not already enabled and remember the given
1863 * filter-spec as the default for subsequent fetches to this
1864 * remote if there is currently no default filter-spec.
1866 if (filter_options.choice) {
1867 partial_clone_register(remote->name, &filter_options);
1872 * Do a partial-fetch from the promisor remote using either the
1873 * explicitly given filter-spec or inherit the filter-spec from
1876 if (!filter_options.choice)
1877 partial_clone_get_default_filter_spec(&filter_options, remote->name);
1881 static int fetch_one(struct remote *remote, int argc, const char **argv,
1882 int prune_tags_ok, int use_stdin_refspecs)
1884 struct refspec rs = REFSPEC_INIT_FETCH;
1887 int maybe_prune_tags;
1888 int remote_via_config = remote_is_configured(remote, 0);
1891 die(_("No remote repository specified. Please, specify either a URL or a\n"
1892 "remote name from which new revisions should be fetched."));
1894 gtransport = prepare_transport(remote, 1);
1897 /* no command line request */
1898 if (0 <= remote->prune)
1899 prune = remote->prune;
1900 else if (0 <= fetch_prune_config)
1901 prune = fetch_prune_config;
1903 prune = PRUNE_BY_DEFAULT;
1906 if (prune_tags < 0) {
1907 /* no command line request */
1908 if (0 <= remote->prune_tags)
1909 prune_tags = remote->prune_tags;
1910 else if (0 <= fetch_prune_tags_config)
1911 prune_tags = fetch_prune_tags_config;
1913 prune_tags = PRUNE_TAGS_BY_DEFAULT;
1916 maybe_prune_tags = prune_tags_ok && prune_tags;
1917 if (maybe_prune_tags && remote_via_config)
1918 refspec_append(&remote->fetch, TAG_REFSPEC);
1920 if (maybe_prune_tags && (argc || !remote_via_config))
1921 refspec_append(&rs, TAG_REFSPEC);
1923 for (i = 0; i < argc; i++) {
1924 if (!strcmp(argv[i], "tag")) {
1927 die(_("You need to specify a tag name."));
1929 refspec_appendf(&rs, "refs/tags/%s:refs/tags/%s",
1932 refspec_append(&rs, argv[i]);
1936 if (use_stdin_refspecs) {
1937 struct strbuf line = STRBUF_INIT;
1938 while (strbuf_getline_lf(&line, stdin) != EOF)
1939 refspec_append(&rs, line.buf);
1940 strbuf_release(&line);
1943 if (server_options.nr)
1944 gtransport->server_options = &server_options;
1946 sigchain_push_common(unlock_pack_on_signal);
1947 atexit(unlock_pack);
1948 sigchain_push(SIGPIPE, SIG_IGN);
1949 exit_code = do_fetch(gtransport, &rs);
1950 sigchain_pop(SIGPIPE);
1952 transport_disconnect(gtransport);
1957 int cmd_fetch(int argc, const char **argv, const char *prefix)
1960 struct string_list list = STRING_LIST_INIT_DUP;
1961 struct remote *remote = NULL;
1963 int prune_tags_ok = 1;
1965 packet_trace_identity("fetch");
1967 /* Record the command line for the reflog */
1968 strbuf_addstr(&default_rla, "fetch");
1969 for (i = 1; i < argc; i++) {
1970 /* This handles non-URLs gracefully */
1971 char *anon = transport_anonymize_url(argv[i]);
1973 strbuf_addf(&default_rla, " %s", anon);
1977 git_config(git_fetch_config, NULL);
1979 argc = parse_options(argc, argv, prefix,
1980 builtin_fetch_options, builtin_fetch_usage, 0);
1981 if (recurse_submodules != RECURSE_SUBMODULES_OFF) {
1982 int *sfjc = submodule_fetch_jobs_config == -1
1983 ? &submodule_fetch_jobs_config : NULL;
1984 int *rs = recurse_submodules == RECURSE_SUBMODULES_DEFAULT
1985 ? &recurse_submodules : NULL;
1987 fetch_config_from_gitmodules(sfjc, rs);
1990 if (deepen_relative) {
1991 if (deepen_relative < 0)
1992 die(_("Negative depth in --deepen is not supported"));
1994 die(_("--deepen and --depth are mutually exclusive"));
1995 depth = xstrfmt("%d", deepen_relative);
1999 die(_("--depth and --unshallow cannot be used together"));
2000 else if (!is_repository_shallow(the_repository))
2001 die(_("--unshallow on a complete repository does not make sense"));
2003 depth = xstrfmt("%d", INFINITE_DEPTH);
2006 /* no need to be strict, transport_set_option() will validate it again */
2007 if (depth && atoi(depth) < 1)
2008 die(_("depth %s is not a positive number"), depth);
2009 if (depth || deepen_since || deepen_not.nr)
2012 /* FETCH_HEAD never gets updated in --dry-run mode */
2014 write_fetch_head = 0;
2018 die(_("fetch --all does not take a repository argument"));
2020 die(_("fetch --all does not make sense with refspecs"));
2021 (void) for_each_remote(get_one_remote_for_fetch, &list);
2022 } else if (argc == 0) {
2023 /* No arguments -- use default remote */
2024 remote = remote_get(NULL);
2025 } else if (multiple) {
2026 /* All arguments are assumed to be remotes or groups */
2027 for (i = 0; i < argc; i++)
2028 if (!add_remote_or_group(argv[i], &list))
2029 die(_("No such remote or remote group: %s"), argv[i]);
2031 /* Single remote or group */
2032 (void) add_remote_or_group(argv[0], &list);
2034 /* More than one remote */
2036 die(_("Fetching a group and specifying refspecs does not make sense"));
2038 /* Zero or one remotes */
2039 remote = remote_get(argv[0]);
2040 prune_tags_ok = (argc == 1);
2047 if (filter_options.choice || has_promisor_remote())
2048 fetch_one_setup_partial(remote);
2049 result = fetch_one(remote, argc, argv, prune_tags_ok, stdin_refspecs);
2051 int max_children = max_jobs;
2053 if (filter_options.choice)
2054 die(_("--filter can only be used with the remote "
2055 "configured in extensions.partialclone"));
2058 die(_("--atomic can only be used when fetching "
2059 "from one remote"));
2062 die(_("--stdin can only be used when fetching "
2063 "from one remote"));
2065 if (max_children < 0)
2066 max_children = fetch_parallel_config;
2068 /* TODO should this also die if we have a previous partial-clone? */
2069 result = fetch_multiple(&list, max_children);
2072 if (!result && (recurse_submodules != RECURSE_SUBMODULES_OFF)) {
2073 struct strvec options = STRVEC_INIT;
2074 int max_children = max_jobs;
2076 if (max_children < 0)
2077 max_children = submodule_fetch_jobs_config;
2078 if (max_children < 0)
2079 max_children = fetch_parallel_config;
2081 add_options_to_argv(&options);
2082 result = fetch_populated_submodules(the_repository,
2086 recurse_submodules_default,
2089 strvec_clear(&options);
2092 string_list_clear(&list, 0);
2094 prepare_repo_settings(the_repository);
2095 if (fetch_write_commit_graph > 0 ||
2096 (fetch_write_commit_graph < 0 &&
2097 the_repository->settings.fetch_write_commit_graph)) {
2098 int commit_graph_flags = COMMIT_GRAPH_WRITE_SPLIT;
2101 commit_graph_flags |= COMMIT_GRAPH_WRITE_PROGRESS;
2103 write_commit_graph_reachable(the_repository->objects->odb,
2108 close_object_store(the_repository->objects);
2111 run_auto_maintenance(verbosity < 0);