8 #include "environment.h"
10 #include "repository.h"
13 #include "object-name.h"
14 #include "object-store-ll.h"
16 #include "oid-array.h"
18 #include "string-list.h"
20 #include "transport.h"
21 #include "run-command.h"
22 #include "parse-options.h"
24 #include "submodule-config.h"
25 #include "submodule.h"
26 #include "connected.h"
32 #include "list-objects-filter-options.h"
33 #include "commit-reach.h"
35 #include "promisor-remote.h"
36 #include "commit-graph.h"
40 #include "bundle-uri.h"
42 #define FORCED_UPDATES_DELAY_WARNING_IN_MS (10 * 1000)
44 static const char * const builtin_fetch_usage
[] = {
45 N_("git fetch [<options>] [<repository> [<refspec>...]]"),
46 N_("git fetch [<options>] <group>"),
47 N_("git fetch --multiple [<options>] [(<repository> | <group>)...]"),
48 N_("git fetch --all [<options>]"),
60 DISPLAY_FORMAT_COMPACT
,
61 DISPLAY_FORMAT_PORCELAIN
,
64 struct display_state
{
68 enum display_format format
;
71 int url_len
, shown_url
;
74 static uint64_t forced_updates_ms
= 0;
75 static int prefetch
= 0;
76 static int prune
= -1; /* unspecified */
77 #define PRUNE_BY_DEFAULT 0 /* do we prune by default? */
79 static int prune_tags
= -1; /* unspecified */
80 #define PRUNE_TAGS_BY_DEFAULT 0 /* do we prune tags by default? */
82 static int append
, dry_run
, force
, keep
, update_head_ok
;
83 static int write_fetch_head
= 1;
84 static int verbosity
, deepen_relative
, set_upstream
, refetch
;
85 static int progress
= -1;
86 static int tags
= TAGS_DEFAULT
, update_shallow
, deepen
;
87 static int atomic_fetch
;
88 static enum transport_family family
;
89 static const char *depth
;
90 static const char *deepen_since
;
91 static const char *upload_pack
;
92 static struct string_list deepen_not
= STRING_LIST_INIT_NODUP
;
93 static struct strbuf default_rla
= STRBUF_INIT
;
94 static struct transport
*gtransport
;
95 static struct transport
*gsecondary
;
96 static struct refspec refmap
= REFSPEC_INIT_FETCH
;
97 static struct list_objects_filter_options filter_options
= LIST_OBJECTS_FILTER_INIT
;
98 static struct string_list server_options
= STRING_LIST_INIT_DUP
;
99 static struct string_list negotiation_tip
= STRING_LIST_INIT_NODUP
;
101 struct fetch_config
{
102 enum display_format display_format
;
106 int show_forced_updates
;
107 int recurse_submodules
;
109 int submodule_fetch_jobs
;
112 static int git_fetch_config(const char *k
, const char *v
,
113 const struct config_context
*ctx
, void *cb
)
115 struct fetch_config
*fetch_config
= cb
;
117 if (!strcmp(k
, "fetch.all")) {
118 fetch_config
->all
= git_config_bool(k
, v
);
122 if (!strcmp(k
, "fetch.prune")) {
123 fetch_config
->prune
= git_config_bool(k
, v
);
127 if (!strcmp(k
, "fetch.prunetags")) {
128 fetch_config
->prune_tags
= git_config_bool(k
, v
);
132 if (!strcmp(k
, "fetch.showforcedupdates")) {
133 fetch_config
->show_forced_updates
= git_config_bool(k
, v
);
137 if (!strcmp(k
, "submodule.recurse")) {
138 int r
= git_config_bool(k
, v
) ?
139 RECURSE_SUBMODULES_ON
: RECURSE_SUBMODULES_OFF
;
140 fetch_config
->recurse_submodules
= r
;
144 if (!strcmp(k
, "submodule.fetchjobs")) {
145 fetch_config
->submodule_fetch_jobs
= parse_submodule_fetchjobs(k
, v
, ctx
->kvi
);
147 } else if (!strcmp(k
, "fetch.recursesubmodules")) {
148 fetch_config
->recurse_submodules
= parse_fetch_recurse_submodules_arg(k
, v
);
152 if (!strcmp(k
, "fetch.parallel")) {
153 fetch_config
->parallel
= git_config_int(k
, v
, ctx
->kvi
);
154 if (fetch_config
->parallel
< 0)
155 die(_("fetch.parallel cannot be negative"));
156 if (!fetch_config
->parallel
)
157 fetch_config
->parallel
= online_cpus();
161 if (!strcmp(k
, "fetch.output")) {
163 return config_error_nonbool(k
);
164 else if (!strcasecmp(v
, "full"))
165 fetch_config
->display_format
= DISPLAY_FORMAT_FULL
;
166 else if (!strcasecmp(v
, "compact"))
167 fetch_config
->display_format
= DISPLAY_FORMAT_COMPACT
;
169 die(_("invalid value for '%s': '%s'"),
173 return git_default_config(k
, v
, ctx
, cb
);
176 static int parse_refmap_arg(const struct option
*opt
, const char *arg
, int unset
)
178 BUG_ON_OPT_NEG(unset
);
181 * "git fetch --refmap='' origin foo"
182 * can be used to tell the command not to store anywhere
184 refspec_append(opt
->value
, arg
);
189 static void unlock_pack(unsigned int flags
)
192 transport_unlock_pack(gtransport
, flags
);
194 transport_unlock_pack(gsecondary
, flags
);
197 static void unlock_pack_atexit(void)
202 static void unlock_pack_on_signal(int signo
)
204 unlock_pack(TRANSPORT_UNLOCK_PACK_IN_SIGNAL_HANDLER
);
209 static void add_merge_config(struct ref
**head
,
210 const struct ref
*remote_refs
,
211 struct branch
*branch
,
216 for (i
= 0; i
< branch
->merge_nr
; i
++) {
217 struct ref
*rm
, **old_tail
= *tail
;
218 struct refspec_item refspec
;
220 for (rm
= *head
; rm
; rm
= rm
->next
) {
221 if (branch_merge_matches(branch
, i
, rm
->name
)) {
222 rm
->fetch_head_status
= FETCH_HEAD_MERGE
;
230 * Not fetched to a remote-tracking branch? We need to fetch
231 * it anyway to allow this branch's "branch.$name.merge"
232 * to be honored by 'git pull', but we do not have to
233 * fail if branch.$name.merge is misconfigured to point
234 * at a nonexisting branch. If we were indeed called by
235 * 'git pull', it will notice the misconfiguration because
236 * there is no entry in the resulting FETCH_HEAD marked
239 memset(&refspec
, 0, sizeof(refspec
));
240 refspec
.src
= branch
->merge
[i
]->src
;
241 get_fetch_map(remote_refs
, &refspec
, tail
, 1);
242 for (rm
= *old_tail
; rm
; rm
= rm
->next
)
243 rm
->fetch_head_status
= FETCH_HEAD_MERGE
;
247 static void create_fetch_oidset(struct ref
**head
, struct oidset
*out
)
249 struct ref
*rm
= *head
;
251 oidset_insert(out
, &rm
->old_oid
);
256 struct refname_hash_entry
{
257 struct hashmap_entry ent
;
258 struct object_id oid
;
260 char refname
[FLEX_ARRAY
];
263 static int refname_hash_entry_cmp(const void *hashmap_cmp_fn_data UNUSED
,
264 const struct hashmap_entry
*eptr
,
265 const struct hashmap_entry
*entry_or_key
,
268 const struct refname_hash_entry
*e1
, *e2
;
270 e1
= container_of(eptr
, const struct refname_hash_entry
, ent
);
271 e2
= container_of(entry_or_key
, const struct refname_hash_entry
, ent
);
272 return strcmp(e1
->refname
, keydata
? keydata
: e2
->refname
);
275 static struct refname_hash_entry
*refname_hash_add(struct hashmap
*map
,
277 const struct object_id
*oid
)
279 struct refname_hash_entry
*ent
;
280 size_t len
= strlen(refname
);
282 FLEX_ALLOC_MEM(ent
, refname
, refname
, len
);
283 hashmap_entry_init(&ent
->ent
, strhash(refname
));
284 oidcpy(&ent
->oid
, oid
);
285 hashmap_add(map
, &ent
->ent
);
289 static int add_one_refname(const char *refname
,
290 const struct object_id
*oid
,
291 int flag UNUSED
, void *cbdata
)
293 struct hashmap
*refname_map
= cbdata
;
295 (void) refname_hash_add(refname_map
, refname
, oid
);
299 static void refname_hash_init(struct hashmap
*map
)
301 hashmap_init(map
, refname_hash_entry_cmp
, NULL
, 0);
304 static int refname_hash_exists(struct hashmap
*map
, const char *refname
)
306 return !!hashmap_get_from_hash(map
, strhash(refname
), refname
);
309 static void clear_item(struct refname_hash_entry
*item
)
315 static void add_already_queued_tags(const char *refname
,
316 const struct object_id
*old_oid UNUSED
,
317 const struct object_id
*new_oid
,
320 struct hashmap
*queued_tags
= cb_data
;
321 if (starts_with(refname
, "refs/tags/") && new_oid
)
322 (void) refname_hash_add(queued_tags
, refname
, new_oid
);
325 static void find_non_local_tags(const struct ref
*refs
,
326 struct ref_transaction
*transaction
,
330 struct hashmap existing_refs
;
331 struct hashmap remote_refs
;
332 struct oidset fetch_oids
= OIDSET_INIT
;
333 struct string_list remote_refs_list
= STRING_LIST_INIT_NODUP
;
334 struct string_list_item
*remote_ref_item
;
335 const struct ref
*ref
;
336 struct refname_hash_entry
*item
= NULL
;
337 const int quick_flags
= OBJECT_INFO_QUICK
| OBJECT_INFO_SKIP_FETCH_OBJECT
;
339 refname_hash_init(&existing_refs
);
340 refname_hash_init(&remote_refs
);
341 create_fetch_oidset(head
, &fetch_oids
);
343 refs_for_each_ref(get_main_ref_store(the_repository
), add_one_refname
,
347 * If we already have a transaction, then we need to filter out all
348 * tags which have already been queued up.
351 ref_transaction_for_each_queued_update(transaction
,
352 add_already_queued_tags
,
355 for (ref
= refs
; ref
; ref
= ref
->next
) {
356 if (!starts_with(ref
->name
, "refs/tags/"))
360 * The peeled ref always follows the matching base
361 * ref, so if we see a peeled ref that we don't want
362 * to fetch then we can mark the ref entry in the list
363 * as one to ignore by setting util to NULL.
365 if (ends_with(ref
->name
, "^{}")) {
367 !repo_has_object_file_with_flags(the_repository
, &ref
->old_oid
, quick_flags
) &&
368 !oidset_contains(&fetch_oids
, &ref
->old_oid
) &&
369 !repo_has_object_file_with_flags(the_repository
, &item
->oid
, quick_flags
) &&
370 !oidset_contains(&fetch_oids
, &item
->oid
))
377 * If item is non-NULL here, then we previously saw a
378 * ref not followed by a peeled reference, so we need
379 * to check if it is a lightweight tag that we want to
383 !repo_has_object_file_with_flags(the_repository
, &item
->oid
, quick_flags
) &&
384 !oidset_contains(&fetch_oids
, &item
->oid
))
389 /* skip duplicates and refs that we already have */
390 if (refname_hash_exists(&remote_refs
, ref
->name
) ||
391 refname_hash_exists(&existing_refs
, ref
->name
))
394 item
= refname_hash_add(&remote_refs
, ref
->name
, &ref
->old_oid
);
395 string_list_insert(&remote_refs_list
, ref
->name
);
397 hashmap_clear_and_free(&existing_refs
, struct refname_hash_entry
, ent
);
400 * We may have a final lightweight tag that needs to be
401 * checked to see if it needs fetching.
404 !repo_has_object_file_with_flags(the_repository
, &item
->oid
, quick_flags
) &&
405 !oidset_contains(&fetch_oids
, &item
->oid
))
409 * For all the tags in the remote_refs_list,
410 * add them to the list of refs to be fetched
412 for_each_string_list_item(remote_ref_item
, &remote_refs_list
) {
413 const char *refname
= remote_ref_item
->string
;
415 unsigned int hash
= strhash(refname
);
417 item
= hashmap_get_entry_from_hash(&remote_refs
, hash
, refname
,
418 struct refname_hash_entry
, ent
);
420 BUG("unseen remote ref?");
422 /* Unless we have already decided to ignore this item... */
426 rm
= alloc_ref(item
->refname
);
427 rm
->peer_ref
= alloc_ref(item
->refname
);
428 oidcpy(&rm
->old_oid
, &item
->oid
);
432 hashmap_clear_and_free(&remote_refs
, struct refname_hash_entry
, ent
);
433 string_list_clear(&remote_refs_list
, 0);
434 oidset_clear(&fetch_oids
);
437 static void filter_prefetch_refspec(struct refspec
*rs
)
444 for (i
= 0; i
< rs
->nr
; i
++) {
445 struct strbuf new_dst
= STRBUF_INIT
;
447 const char *sub
= NULL
;
449 if (rs
->items
[i
].negative
)
451 if (!rs
->items
[i
].dst
||
453 starts_with(rs
->items
[i
].src
,
454 ref_namespace
[NAMESPACE_TAGS
].ref
))) {
457 free(rs
->items
[i
].src
);
458 free(rs
->items
[i
].dst
);
460 for (j
= i
+ 1; j
< rs
->nr
; j
++) {
461 rs
->items
[j
- 1] = rs
->items
[j
];
462 rs
->raw
[j
- 1] = rs
->raw
[j
];
469 old_dst
= rs
->items
[i
].dst
;
470 strbuf_addstr(&new_dst
, ref_namespace
[NAMESPACE_PREFETCH
].ref
);
473 * If old_dst starts with "refs/", then place
474 * sub after that prefix. Otherwise, start at
475 * the beginning of the string.
477 if (!skip_prefix(old_dst
, "refs/", &sub
))
479 strbuf_addstr(&new_dst
, sub
);
481 rs
->items
[i
].dst
= strbuf_detach(&new_dst
, NULL
);
482 rs
->items
[i
].force
= 1;
488 static struct ref
*get_ref_map(struct remote
*remote
,
489 const struct ref
*remote_refs
,
491 int tags
, int *autotags
)
495 struct ref
*ref_map
= NULL
;
496 struct ref
**tail
= &ref_map
;
498 /* opportunistically-updated references: */
499 struct ref
*orefs
= NULL
, **oref_tail
= &orefs
;
501 struct hashmap existing_refs
;
502 int existing_refs_populated
= 0;
504 filter_prefetch_refspec(rs
);
506 filter_prefetch_refspec(&remote
->fetch
);
509 struct refspec
*fetch_refspec
;
511 for (i
= 0; i
< rs
->nr
; i
++) {
512 get_fetch_map(remote_refs
, &rs
->items
[i
], &tail
, 0);
513 if (rs
->items
[i
].dst
&& rs
->items
[i
].dst
[0])
516 /* Merge everything on the command line (but not --tags) */
517 for (rm
= ref_map
; rm
; rm
= rm
->next
)
518 rm
->fetch_head_status
= FETCH_HEAD_MERGE
;
521 * For any refs that we happen to be fetching via
522 * command-line arguments, the destination ref might
523 * have been missing or have been different than the
524 * remote-tracking ref that would be derived from the
525 * configured refspec. In these cases, we want to
526 * take the opportunity to update their configured
527 * remote-tracking reference. However, we do not want
528 * to mention these entries in FETCH_HEAD at all, as
529 * they would simply be duplicates of existing
530 * entries, so we set them FETCH_HEAD_IGNORE below.
532 * We compute these entries now, based only on the
533 * refspecs specified on the command line. But we add
534 * them to the list following the refspecs resulting
535 * from the tags option so that one of the latter,
536 * which has FETCH_HEAD_NOT_FOR_MERGE, is not removed
537 * by ref_remove_duplicates() in favor of one of these
538 * opportunistic entries with FETCH_HEAD_IGNORE.
541 fetch_refspec
= &refmap
;
543 fetch_refspec
= &remote
->fetch
;
545 for (i
= 0; i
< fetch_refspec
->nr
; i
++)
546 get_fetch_map(ref_map
, &fetch_refspec
->items
[i
], &oref_tail
, 1);
547 } else if (refmap
.nr
) {
548 die("--refmap option is only meaningful with command-line refspec(s)");
550 /* Use the defaults */
551 struct branch
*branch
= branch_get(NULL
);
552 int has_merge
= branch_has_merge_config(branch
);
555 /* Note: has_merge implies non-NULL branch->remote_name */
556 (has_merge
&& !strcmp(branch
->remote_name
, remote
->name
)))) {
557 for (i
= 0; i
< remote
->fetch
.nr
; i
++) {
558 get_fetch_map(remote_refs
, &remote
->fetch
.items
[i
], &tail
, 0);
559 if (remote
->fetch
.items
[i
].dst
&&
560 remote
->fetch
.items
[i
].dst
[0])
562 if (!i
&& !has_merge
&& ref_map
&&
563 !remote
->fetch
.items
[0].pattern
)
564 ref_map
->fetch_head_status
= FETCH_HEAD_MERGE
;
567 * if the remote we're fetching from is the same
568 * as given in branch.<name>.remote, we add the
569 * ref given in branch.<name>.merge, too.
571 * Note: has_merge implies non-NULL branch->remote_name
574 !strcmp(branch
->remote_name
, remote
->name
))
575 add_merge_config(&ref_map
, remote_refs
, branch
, &tail
);
576 } else if (!prefetch
) {
577 ref_map
= get_remote_ref(remote_refs
, "HEAD");
579 die(_("couldn't find remote ref HEAD"));
580 ref_map
->fetch_head_status
= FETCH_HEAD_MERGE
;
581 tail
= &ref_map
->next
;
585 if (tags
== TAGS_SET
)
586 /* also fetch all tags */
587 get_fetch_map(remote_refs
, tag_refspec
, &tail
, 0);
588 else if (tags
== TAGS_DEFAULT
&& *autotags
)
589 find_non_local_tags(remote_refs
, NULL
, &ref_map
, &tail
);
591 /* Now append any refs to be updated opportunistically: */
593 for (rm
= orefs
; rm
; rm
= rm
->next
) {
594 rm
->fetch_head_status
= FETCH_HEAD_IGNORE
;
599 * apply negative refspecs first, before we remove duplicates. This is
600 * necessary as negative refspecs might remove an otherwise conflicting
604 ref_map
= apply_negative_refspecs(ref_map
, rs
);
606 ref_map
= apply_negative_refspecs(ref_map
, &remote
->fetch
);
608 ref_map
= ref_remove_duplicates(ref_map
);
610 for (rm
= ref_map
; rm
; rm
= rm
->next
) {
612 const char *refname
= rm
->peer_ref
->name
;
613 struct refname_hash_entry
*peer_item
;
614 unsigned int hash
= strhash(refname
);
616 if (!existing_refs_populated
) {
617 refname_hash_init(&existing_refs
);
618 refs_for_each_ref(get_main_ref_store(the_repository
),
621 existing_refs_populated
= 1;
624 peer_item
= hashmap_get_entry_from_hash(&existing_refs
,
626 struct refname_hash_entry
, ent
);
628 struct object_id
*old_oid
= &peer_item
->oid
;
629 oidcpy(&rm
->peer_ref
->old_oid
, old_oid
);
633 if (existing_refs_populated
)
634 hashmap_clear_and_free(&existing_refs
, struct refname_hash_entry
, ent
);
639 #define STORE_REF_ERROR_OTHER 1
640 #define STORE_REF_ERROR_DF_CONFLICT 2
642 static int s_update_ref(const char *action
,
644 struct ref_transaction
*transaction
,
648 char *rla
= getenv("GIT_REFLOG_ACTION");
649 struct ref_transaction
*our_transaction
= NULL
;
650 struct strbuf err
= STRBUF_INIT
;
656 rla
= default_rla
.buf
;
657 msg
= xstrfmt("%s: %s", rla
, action
);
660 * If no transaction was passed to us, we manage the transaction
661 * ourselves. Otherwise, we trust the caller to handle the transaction
665 transaction
= our_transaction
= ref_store_transaction_begin(get_main_ref_store(the_repository
),
668 ret
= STORE_REF_ERROR_OTHER
;
673 ret
= ref_transaction_update(transaction
, ref
->name
, &ref
->new_oid
,
674 check_old
? &ref
->old_oid
: NULL
,
675 NULL
, NULL
, 0, msg
, &err
);
677 ret
= STORE_REF_ERROR_OTHER
;
681 if (our_transaction
) {
682 switch (ref_transaction_commit(our_transaction
, &err
)) {
685 case TRANSACTION_NAME_CONFLICT
:
686 ret
= STORE_REF_ERROR_DF_CONFLICT
;
689 ret
= STORE_REF_ERROR_OTHER
;
695 ref_transaction_free(our_transaction
);
697 error("%s", err
.buf
);
698 strbuf_release(&err
);
703 static int refcol_width(const struct ref
*ref_map
, int compact_format
)
705 const struct ref
*ref
;
708 max
= term_columns();
712 for (ref
= ref_map
; ref
; ref
= ref
->next
) {
713 int rlen
, llen
= 0, len
;
715 if (ref
->status
== REF_STATUS_REJECT_SHALLOW
||
717 !strcmp(ref
->name
, "HEAD"))
720 /* uptodate lines are only shown on high verbosity level */
721 if (verbosity
<= 0 && oideq(&ref
->peer_ref
->old_oid
, &ref
->old_oid
))
724 rlen
= utf8_strwidth(prettify_refname(ref
->name
));
726 llen
= utf8_strwidth(prettify_refname(ref
->peer_ref
->name
));
729 * rough estimation to see if the output line is too long and
730 * should not be counted (we can't do precise calculation
731 * anyway because we don't know if the error explanation part
732 * will be printed in update_local_ref)
734 len
= 21 /* flag and summary */ + rlen
+ 4 /* -> */ + llen
;
745 static void display_state_init(struct display_state
*display_state
, struct ref
*ref_map
,
746 const char *raw_url
, enum display_format format
)
750 memset(display_state
, 0, sizeof(*display_state
));
751 strbuf_init(&display_state
->buf
, 0);
752 display_state
->format
= format
;
755 display_state
->url
= transport_anonymize_url(raw_url
);
757 display_state
->url
= xstrdup("foreign");
759 display_state
->url_len
= strlen(display_state
->url
);
760 for (i
= display_state
->url_len
- 1; display_state
->url
[i
] == '/' && 0 <= i
; i
--)
762 display_state
->url_len
= i
+ 1;
763 if (4 < i
&& !strncmp(".git", display_state
->url
+ i
- 3, 4))
764 display_state
->url_len
= i
- 3;
769 switch (display_state
->format
) {
770 case DISPLAY_FORMAT_FULL
:
771 case DISPLAY_FORMAT_COMPACT
:
772 display_state
->refcol_width
= refcol_width(ref_map
,
773 display_state
->format
== DISPLAY_FORMAT_COMPACT
);
775 case DISPLAY_FORMAT_PORCELAIN
:
776 /* We don't need to precompute anything here. */
779 BUG("unexpected display format %d", display_state
->format
);
783 static void display_state_release(struct display_state
*display_state
)
785 strbuf_release(&display_state
->buf
);
786 free(display_state
->url
);
789 static void print_remote_to_local(struct display_state
*display_state
,
790 const char *remote
, const char *local
)
792 strbuf_addf(&display_state
->buf
, "%-*s -> %s",
793 display_state
->refcol_width
, remote
, local
);
796 static int find_and_replace(struct strbuf
*haystack
,
798 const char *placeholder
)
800 const char *p
= NULL
;
803 nlen
= strlen(needle
);
804 if (ends_with(haystack
->buf
, needle
))
805 p
= haystack
->buf
+ haystack
->len
- nlen
;
807 p
= strstr(haystack
->buf
, needle
);
811 if (p
> haystack
->buf
&& p
[-1] != '/')
815 if (plen
> nlen
&& p
[nlen
] != '/')
818 strbuf_splice(haystack
, p
- haystack
->buf
, nlen
,
819 placeholder
, strlen(placeholder
));
823 static void print_compact(struct display_state
*display_state
,
824 const char *remote
, const char *local
)
826 struct strbuf r
= STRBUF_INIT
;
827 struct strbuf l
= STRBUF_INIT
;
829 if (!strcmp(remote
, local
)) {
830 strbuf_addf(&display_state
->buf
, "%-*s -> *", display_state
->refcol_width
, remote
);
834 strbuf_addstr(&r
, remote
);
835 strbuf_addstr(&l
, local
);
837 if (!find_and_replace(&r
, local
, "*"))
838 find_and_replace(&l
, remote
, "*");
839 print_remote_to_local(display_state
, r
.buf
, l
.buf
);
845 static void display_ref_update(struct display_state
*display_state
, char code
,
846 const char *summary
, const char *error
,
847 const char *remote
, const char *local
,
848 const struct object_id
*old_oid
,
849 const struct object_id
*new_oid
,
857 strbuf_reset(&display_state
->buf
);
859 switch (display_state
->format
) {
860 case DISPLAY_FORMAT_FULL
:
861 case DISPLAY_FORMAT_COMPACT
: {
864 if (!display_state
->shown_url
) {
865 strbuf_addf(&display_state
->buf
, _("From %.*s\n"),
866 display_state
->url_len
, display_state
->url
);
867 display_state
->shown_url
= 1;
870 width
= (summary_width
+ strlen(summary
) - gettext_width(summary
));
871 remote
= prettify_refname(remote
);
872 local
= prettify_refname(local
);
874 strbuf_addf(&display_state
->buf
, " %c %-*s ", code
, width
, summary
);
876 if (display_state
->format
!= DISPLAY_FORMAT_COMPACT
)
877 print_remote_to_local(display_state
, remote
, local
);
879 print_compact(display_state
, remote
, local
);
882 strbuf_addf(&display_state
->buf
, " (%s)", error
);
886 case DISPLAY_FORMAT_PORCELAIN
:
887 strbuf_addf(&display_state
->buf
, "%c %s %s %s", code
,
888 oid_to_hex(old_oid
), oid_to_hex(new_oid
), local
);
892 BUG("unexpected display format %d", display_state
->format
);
894 strbuf_addch(&display_state
->buf
, '\n');
896 fputs(display_state
->buf
.buf
, f
);
899 static int update_local_ref(struct ref
*ref
,
900 struct ref_transaction
*transaction
,
901 struct display_state
*display_state
,
902 const struct ref
*remote_ref
,
904 const struct fetch_config
*config
)
906 struct commit
*current
= NULL
, *updated
;
907 int fast_forward
= 0;
909 if (!repo_has_object_file(the_repository
, &ref
->new_oid
))
910 die(_("object %s not found"), oid_to_hex(&ref
->new_oid
));
912 if (oideq(&ref
->old_oid
, &ref
->new_oid
)) {
914 display_ref_update(display_state
, '=', _("[up to date]"), NULL
,
915 remote_ref
->name
, ref
->name
,
916 &ref
->old_oid
, &ref
->new_oid
, summary_width
);
920 if (!update_head_ok
&&
921 !is_null_oid(&ref
->old_oid
) &&
922 branch_checked_out(ref
->name
)) {
924 * If this is the head, and it's not okay to update
925 * the head, and the old value of the head isn't empty...
927 display_ref_update(display_state
, '!', _("[rejected]"),
928 _("can't fetch into checked-out branch"),
929 remote_ref
->name
, ref
->name
,
930 &ref
->old_oid
, &ref
->new_oid
, summary_width
);
934 if (!is_null_oid(&ref
->old_oid
) &&
935 starts_with(ref
->name
, "refs/tags/")) {
936 if (force
|| ref
->force
) {
938 r
= s_update_ref("updating tag", ref
, transaction
, 0);
939 display_ref_update(display_state
, r
? '!' : 't', _("[tag update]"),
940 r
? _("unable to update local ref") : NULL
,
941 remote_ref
->name
, ref
->name
,
942 &ref
->old_oid
, &ref
->new_oid
, summary_width
);
945 display_ref_update(display_state
, '!', _("[rejected]"),
946 _("would clobber existing tag"),
947 remote_ref
->name
, ref
->name
,
948 &ref
->old_oid
, &ref
->new_oid
, summary_width
);
953 current
= lookup_commit_reference_gently(the_repository
,
955 updated
= lookup_commit_reference_gently(the_repository
,
957 if (!current
|| !updated
) {
962 * Nicely describe the new ref we're fetching.
963 * Base this on the remote's ref name, as it's
964 * more likely to follow a standard layout.
966 if (starts_with(remote_ref
->name
, "refs/tags/")) {
968 what
= _("[new tag]");
969 } else if (starts_with(remote_ref
->name
, "refs/heads/")) {
970 msg
= "storing head";
971 what
= _("[new branch]");
974 what
= _("[new ref]");
977 r
= s_update_ref(msg
, ref
, transaction
, 0);
978 display_ref_update(display_state
, r
? '!' : '*', what
,
979 r
? _("unable to update local ref") : NULL
,
980 remote_ref
->name
, ref
->name
,
981 &ref
->old_oid
, &ref
->new_oid
, summary_width
);
985 if (config
->show_forced_updates
) {
986 uint64_t t_before
= getnanotime();
987 fast_forward
= repo_in_merge_bases(the_repository
, current
,
989 if (fast_forward
< 0)
991 forced_updates_ms
+= (getnanotime() - t_before
) / 1000000;
997 struct strbuf quickref
= STRBUF_INIT
;
1000 strbuf_add_unique_abbrev(&quickref
, ¤t
->object
.oid
, DEFAULT_ABBREV
);
1001 strbuf_addstr(&quickref
, "..");
1002 strbuf_add_unique_abbrev(&quickref
, &ref
->new_oid
, DEFAULT_ABBREV
);
1003 r
= s_update_ref("fast-forward", ref
, transaction
, 1);
1004 display_ref_update(display_state
, r
? '!' : ' ', quickref
.buf
,
1005 r
? _("unable to update local ref") : NULL
,
1006 remote_ref
->name
, ref
->name
,
1007 &ref
->old_oid
, &ref
->new_oid
, summary_width
);
1008 strbuf_release(&quickref
);
1010 } else if (force
|| ref
->force
) {
1011 struct strbuf quickref
= STRBUF_INIT
;
1013 strbuf_add_unique_abbrev(&quickref
, ¤t
->object
.oid
, DEFAULT_ABBREV
);
1014 strbuf_addstr(&quickref
, "...");
1015 strbuf_add_unique_abbrev(&quickref
, &ref
->new_oid
, DEFAULT_ABBREV
);
1016 r
= s_update_ref("forced-update", ref
, transaction
, 1);
1017 display_ref_update(display_state
, r
? '!' : '+', quickref
.buf
,
1018 r
? _("unable to update local ref") : _("forced update"),
1019 remote_ref
->name
, ref
->name
,
1020 &ref
->old_oid
, &ref
->new_oid
, summary_width
);
1021 strbuf_release(&quickref
);
1024 display_ref_update(display_state
, '!', _("[rejected]"), _("non-fast-forward"),
1025 remote_ref
->name
, ref
->name
,
1026 &ref
->old_oid
, &ref
->new_oid
, summary_width
);
1031 static const struct object_id
*iterate_ref_map(void *cb_data
)
1033 struct ref
**rm
= cb_data
;
1034 struct ref
*ref
= *rm
;
1036 while (ref
&& ref
->status
== REF_STATUS_REJECT_SHALLOW
)
1041 return &ref
->old_oid
;
1049 static int open_fetch_head(struct fetch_head
*fetch_head
)
1051 const char *filename
= git_path_fetch_head(the_repository
);
1053 if (write_fetch_head
) {
1054 fetch_head
->fp
= fopen(filename
, "a");
1055 if (!fetch_head
->fp
)
1056 return error_errno(_("cannot open '%s'"), filename
);
1057 strbuf_init(&fetch_head
->buf
, 0);
1059 fetch_head
->fp
= NULL
;
1065 static void append_fetch_head(struct fetch_head
*fetch_head
,
1066 const struct object_id
*old_oid
,
1067 enum fetch_head_status fetch_head_status
,
1069 const char *url
, size_t url_len
)
1071 char old_oid_hex
[GIT_MAX_HEXSZ
+ 1];
1072 const char *merge_status_marker
;
1075 if (!fetch_head
->fp
)
1078 switch (fetch_head_status
) {
1079 case FETCH_HEAD_NOT_FOR_MERGE
:
1080 merge_status_marker
= "not-for-merge";
1082 case FETCH_HEAD_MERGE
:
1083 merge_status_marker
= "";
1086 /* do not write anything to FETCH_HEAD */
1090 strbuf_addf(&fetch_head
->buf
, "%s\t%s\t%s",
1091 oid_to_hex_r(old_oid_hex
, old_oid
), merge_status_marker
, note
);
1092 for (i
= 0; i
< url_len
; ++i
)
1094 strbuf_addstr(&fetch_head
->buf
, "\\n");
1096 strbuf_addch(&fetch_head
->buf
, url
[i
]);
1097 strbuf_addch(&fetch_head
->buf
, '\n');
1100 * When using an atomic fetch, we do not want to update FETCH_HEAD if
1101 * any of the reference updates fails. We thus have to write all
1102 * updates to a buffer first and only commit it as soon as all
1103 * references have been successfully updated.
1105 if (!atomic_fetch
) {
1106 strbuf_write(&fetch_head
->buf
, fetch_head
->fp
);
1107 strbuf_reset(&fetch_head
->buf
);
1111 static void commit_fetch_head(struct fetch_head
*fetch_head
)
1113 if (!fetch_head
->fp
|| !atomic_fetch
)
1115 strbuf_write(&fetch_head
->buf
, fetch_head
->fp
);
1118 static void close_fetch_head(struct fetch_head
*fetch_head
)
1120 if (!fetch_head
->fp
)
1123 fclose(fetch_head
->fp
);
1124 strbuf_release(&fetch_head
->buf
);
1127 static const char warn_show_forced_updates
[] =
1128 N_("fetch normally indicates which branches had a forced update,\n"
1129 "but that check has been disabled; to re-enable, use '--show-forced-updates'\n"
1130 "flag or run 'git config fetch.showForcedUpdates true'");
1131 static const char warn_time_show_forced_updates
[] =
1132 N_("it took %.2f seconds to check forced updates; you can use\n"
1133 "'--no-show-forced-updates' or run 'git config fetch.showForcedUpdates false'\n"
1134 "to avoid this check\n");
1136 static int store_updated_refs(struct display_state
*display_state
,
1137 const char *remote_name
,
1138 int connectivity_checked
,
1139 struct ref_transaction
*transaction
, struct ref
*ref_map
,
1140 struct fetch_head
*fetch_head
,
1141 const struct fetch_config
*config
)
1144 struct strbuf note
= STRBUF_INIT
;
1145 const char *what
, *kind
;
1148 int summary_width
= 0;
1151 summary_width
= transport_summary_width(ref_map
);
1153 if (!connectivity_checked
) {
1154 struct check_connected_options opt
= CHECK_CONNECTED_INIT
;
1156 opt
.exclude_hidden_refs_section
= "fetch";
1158 if (check_connected(iterate_ref_map
, &rm
, &opt
)) {
1159 rc
= error(_("%s did not send all necessary objects\n"),
1160 display_state
->url
);
1166 * We do a pass for each fetch_head_status type in their enum order, so
1167 * merged entries are written before not-for-merge. That lets readers
1168 * use FETCH_HEAD as a refname to refer to the ref to be merged.
1170 for (want_status
= FETCH_HEAD_MERGE
;
1171 want_status
<= FETCH_HEAD_IGNORE
;
1173 for (rm
= ref_map
; rm
; rm
= rm
->next
) {
1174 struct ref
*ref
= NULL
;
1176 if (rm
->status
== REF_STATUS_REJECT_SHALLOW
) {
1177 if (want_status
== FETCH_HEAD_MERGE
)
1178 warning(_("rejected %s because shallow roots are not allowed to be updated"),
1179 rm
->peer_ref
? rm
->peer_ref
->name
: rm
->name
);
1184 * When writing FETCH_HEAD we need to determine whether
1185 * we already have the commit or not. If not, then the
1186 * reference is not for merge and needs to be written
1187 * to the reflog after other commits which we already
1188 * have. We're not interested in this property though
1189 * in case FETCH_HEAD is not to be updated, so we can
1190 * skip the classification in that case.
1192 if (fetch_head
->fp
) {
1193 struct commit
*commit
= NULL
;
1196 * References in "refs/tags/" are often going to point
1197 * to annotated tags, which are not part of the
1198 * commit-graph. We thus only try to look up refs in
1199 * the graph which are not in that namespace to not
1200 * regress performance in repositories with many
1203 if (!starts_with(rm
->name
, "refs/tags/"))
1204 commit
= lookup_commit_in_graph(the_repository
, &rm
->old_oid
);
1206 commit
= lookup_commit_reference_gently(the_repository
,
1210 rm
->fetch_head_status
= FETCH_HEAD_NOT_FOR_MERGE
;
1214 if (rm
->fetch_head_status
!= want_status
)
1218 ref
= alloc_ref(rm
->peer_ref
->name
);
1219 oidcpy(&ref
->old_oid
, &rm
->peer_ref
->old_oid
);
1220 oidcpy(&ref
->new_oid
, &rm
->old_oid
);
1221 ref
->force
= rm
->peer_ref
->force
;
1224 if (config
->recurse_submodules
!= RECURSE_SUBMODULES_OFF
&&
1225 (!rm
->peer_ref
|| !oideq(&ref
->old_oid
, &ref
->new_oid
))) {
1226 check_for_new_submodule_commits(&rm
->old_oid
);
1229 if (!strcmp(rm
->name
, "HEAD")) {
1232 } else if (skip_prefix(rm
->name
, "refs/heads/", &what
)) {
1234 } else if (skip_prefix(rm
->name
, "refs/tags/", &what
)) {
1236 } else if (skip_prefix(rm
->name
, "refs/remotes/", &what
)) {
1237 kind
= "remote-tracking branch";
1243 strbuf_reset(¬e
);
1246 strbuf_addf(¬e
, "%s ", kind
);
1247 strbuf_addf(¬e
, "'%s' of ", what
);
1250 append_fetch_head(fetch_head
, &rm
->old_oid
,
1251 rm
->fetch_head_status
,
1252 note
.buf
, display_state
->url
,
1253 display_state
->url_len
);
1256 rc
|= update_local_ref(ref
, transaction
, display_state
,
1257 rm
, summary_width
, config
);
1259 } else if (write_fetch_head
|| dry_run
) {
1261 * Display fetches written to FETCH_HEAD (or
1262 * would be written to FETCH_HEAD, if --dry-run
1265 display_ref_update(display_state
, '*',
1266 *kind
? kind
: "branch", NULL
,
1269 &rm
->new_oid
, &rm
->old_oid
,
1275 if (rc
& STORE_REF_ERROR_DF_CONFLICT
)
1276 error(_("some local refs could not be updated; try running\n"
1277 " 'git remote prune %s' to remove any old, conflicting "
1278 "branches"), remote_name
);
1280 if (advice_enabled(ADVICE_FETCH_SHOW_FORCED_UPDATES
)) {
1281 if (!config
->show_forced_updates
) {
1282 warning(_(warn_show_forced_updates
));
1283 } else if (forced_updates_ms
> FORCED_UPDATES_DELAY_WARNING_IN_MS
) {
1284 warning(_(warn_time_show_forced_updates
),
1285 forced_updates_ms
/ 1000.0);
1290 strbuf_release(¬e
);
1295 * We would want to bypass the object transfer altogether if
1296 * everything we are going to fetch already exists and is connected
1299 static int check_exist_and_connected(struct ref
*ref_map
)
1301 struct ref
*rm
= ref_map
;
1302 struct check_connected_options opt
= CHECK_CONNECTED_INIT
;
1306 * If we are deepening a shallow clone we already have these
1307 * objects reachable. Running rev-list here will return with
1308 * a good (0) exit status and we'll bypass the fetch that we
1309 * really need to perform. Claiming failure now will ensure
1310 * we perform the network exchange to deepen our history.
1316 * Similarly, if we need to refetch, we always want to perform a full
1317 * fetch ignoring existing objects.
1324 * check_connected() allows objects to merely be promised, but
1325 * we need all direct targets to exist.
1327 for (r
= rm
; r
; r
= r
->next
) {
1328 if (!repo_has_object_file_with_flags(the_repository
, &r
->old_oid
,
1329 OBJECT_INFO_SKIP_FETCH_OBJECT
))
1334 opt
.exclude_hidden_refs_section
= "fetch";
1335 return check_connected(iterate_ref_map
, &rm
, &opt
);
1338 static int fetch_and_consume_refs(struct display_state
*display_state
,
1339 struct transport
*transport
,
1340 struct ref_transaction
*transaction
,
1341 struct ref
*ref_map
,
1342 struct fetch_head
*fetch_head
,
1343 const struct fetch_config
*config
)
1345 int connectivity_checked
= 1;
1349 * We don't need to perform a fetch in case we can already satisfy all
1352 ret
= check_exist_and_connected(ref_map
);
1354 trace2_region_enter("fetch", "fetch_refs", the_repository
);
1355 ret
= transport_fetch_refs(transport
, ref_map
);
1356 trace2_region_leave("fetch", "fetch_refs", the_repository
);
1359 connectivity_checked
= transport
->smart_options
?
1360 transport
->smart_options
->connectivity_checked
: 0;
1363 trace2_region_enter("fetch", "consume_refs", the_repository
);
1364 ret
= store_updated_refs(display_state
, transport
->remote
->name
,
1365 connectivity_checked
, transaction
, ref_map
,
1366 fetch_head
, config
);
1367 trace2_region_leave("fetch", "consume_refs", the_repository
);
1370 transport_unlock_pack(transport
, 0);
1374 static int prune_refs(struct display_state
*display_state
,
1376 struct ref_transaction
*transaction
,
1377 struct ref
*ref_map
)
1380 struct ref
*ref
, *stale_refs
= get_stale_heads(rs
, ref_map
);
1381 struct strbuf err
= STRBUF_INIT
;
1382 const char *dangling_msg
= dry_run
1383 ? _(" (%s will become dangling)")
1384 : _(" (%s has become dangling)");
1388 for (ref
= stale_refs
; ref
; ref
= ref
->next
) {
1389 result
= ref_transaction_delete(transaction
, ref
->name
, NULL
, 0,
1390 "fetch: prune", &err
);
1395 struct string_list refnames
= STRING_LIST_INIT_NODUP
;
1397 for (ref
= stale_refs
; ref
; ref
= ref
->next
)
1398 string_list_append(&refnames
, ref
->name
);
1400 result
= refs_delete_refs(get_main_ref_store(the_repository
),
1401 "fetch: prune", &refnames
,
1403 string_list_clear(&refnames
, 0);
1407 if (verbosity
>= 0) {
1408 int summary_width
= transport_summary_width(stale_refs
);
1410 for (ref
= stale_refs
; ref
; ref
= ref
->next
) {
1411 display_ref_update(display_state
, '-', _("[deleted]"), NULL
,
1412 _("(none)"), ref
->name
,
1413 &ref
->new_oid
, &ref
->old_oid
,
1415 warn_dangling_symref(stderr
, dangling_msg
, ref
->name
);
1420 strbuf_release(&err
);
1421 free_refs(stale_refs
);
1425 static void check_not_current_branch(struct ref
*ref_map
)
1428 for (; ref_map
; ref_map
= ref_map
->next
)
1429 if (ref_map
->peer_ref
&&
1430 starts_with(ref_map
->peer_ref
->name
, "refs/heads/") &&
1431 (path
= branch_checked_out(ref_map
->peer_ref
->name
)))
1432 die(_("refusing to fetch into branch '%s' "
1433 "checked out at '%s'"),
1434 ref_map
->peer_ref
->name
, path
);
1437 static int truncate_fetch_head(void)
1439 const char *filename
= git_path_fetch_head(the_repository
);
1440 FILE *fp
= fopen_for_writing(filename
);
1443 return error_errno(_("cannot open '%s'"), filename
);
1448 static void set_option(struct transport
*transport
, const char *name
, const char *value
)
1450 int r
= transport_set_option(transport
, name
, value
);
1452 die(_("option \"%s\" value \"%s\" is not valid for %s"),
1453 name
, value
, transport
->url
);
1455 warning(_("option \"%s\" is ignored for %s\n"),
1456 name
, transport
->url
);
1460 static int add_oid(const char *refname UNUSED
,
1461 const struct object_id
*oid
,
1462 int flags UNUSED
, void *cb_data
)
1464 struct oid_array
*oids
= cb_data
;
1466 oid_array_append(oids
, oid
);
1470 static void add_negotiation_tips(struct git_transport_options
*smart_options
)
1472 struct oid_array
*oids
= xcalloc(1, sizeof(*oids
));
1475 for (i
= 0; i
< negotiation_tip
.nr
; i
++) {
1476 const char *s
= negotiation_tip
.items
[i
].string
;
1478 if (!has_glob_specials(s
)) {
1479 struct object_id oid
;
1480 if (repo_get_oid(the_repository
, s
, &oid
))
1481 die(_("%s is not a valid object"), s
);
1482 if (!has_object(the_repository
, &oid
, 0))
1483 die(_("the object %s does not exist"), s
);
1484 oid_array_append(oids
, &oid
);
1488 refs_for_each_glob_ref(get_main_ref_store(the_repository
),
1490 if (old_nr
== oids
->nr
)
1491 warning("ignoring --negotiation-tip=%s because it does not match any refs",
1494 smart_options
->negotiation_tips
= oids
;
1497 static struct transport
*prepare_transport(struct remote
*remote
, int deepen
)
1499 struct transport
*transport
;
1501 transport
= transport_get(remote
, NULL
);
1502 transport_set_verbosity(transport
, verbosity
, progress
);
1503 transport
->family
= family
;
1505 set_option(transport
, TRANS_OPT_UPLOADPACK
, upload_pack
);
1507 set_option(transport
, TRANS_OPT_KEEP
, "yes");
1509 set_option(transport
, TRANS_OPT_DEPTH
, depth
);
1510 if (deepen
&& deepen_since
)
1511 set_option(transport
, TRANS_OPT_DEEPEN_SINCE
, deepen_since
);
1512 if (deepen
&& deepen_not
.nr
)
1513 set_option(transport
, TRANS_OPT_DEEPEN_NOT
,
1514 (const char *)&deepen_not
);
1515 if (deepen_relative
)
1516 set_option(transport
, TRANS_OPT_DEEPEN_RELATIVE
, "yes");
1518 set_option(transport
, TRANS_OPT_UPDATE_SHALLOW
, "yes");
1520 set_option(transport
, TRANS_OPT_REFETCH
, "yes");
1521 if (filter_options
.choice
) {
1523 expand_list_objects_filter_spec(&filter_options
);
1524 set_option(transport
, TRANS_OPT_LIST_OBJECTS_FILTER
, spec
);
1525 set_option(transport
, TRANS_OPT_FROM_PROMISOR
, "1");
1527 if (negotiation_tip
.nr
) {
1528 if (transport
->smart_options
)
1529 add_negotiation_tips(transport
->smart_options
);
1531 warning("ignoring --negotiation-tip because the protocol does not support it");
1536 static int backfill_tags(struct display_state
*display_state
,
1537 struct transport
*transport
,
1538 struct ref_transaction
*transaction
,
1539 struct ref
*ref_map
,
1540 struct fetch_head
*fetch_head
,
1541 const struct fetch_config
*config
)
1543 int retcode
, cannot_reuse
;
1546 * Once we have set TRANS_OPT_DEEPEN_SINCE, we can't unset it
1547 * when remote helper is used (setting it to an empty string
1548 * is not unsetting). We could extend the remote helper
1549 * protocol for that, but for now, just force a new connection
1550 * without deepen-since. Similar story for deepen-not.
1552 cannot_reuse
= transport
->cannot_reuse
||
1553 deepen_since
|| deepen_not
.nr
;
1555 gsecondary
= prepare_transport(transport
->remote
, 0);
1556 transport
= gsecondary
;
1559 transport_set_option(transport
, TRANS_OPT_FOLLOWTAGS
, NULL
);
1560 transport_set_option(transport
, TRANS_OPT_DEPTH
, "0");
1561 transport_set_option(transport
, TRANS_OPT_DEEPEN_RELATIVE
, NULL
);
1562 retcode
= fetch_and_consume_refs(display_state
, transport
, transaction
, ref_map
,
1563 fetch_head
, config
);
1566 transport_disconnect(gsecondary
);
1573 static int do_fetch(struct transport
*transport
,
1575 const struct fetch_config
*config
)
1577 struct ref_transaction
*transaction
= NULL
;
1578 struct ref
*ref_map
= NULL
;
1579 struct display_state display_state
= { 0 };
1580 int autotags
= (transport
->remote
->fetch_tags
== 1);
1582 const struct ref
*remote_refs
;
1583 struct transport_ls_refs_options transport_ls_refs_options
=
1584 TRANSPORT_LS_REFS_OPTIONS_INIT
;
1585 int must_list_refs
= 1;
1586 struct fetch_head fetch_head
= { 0 };
1587 struct strbuf err
= STRBUF_INIT
;
1589 if (tags
== TAGS_DEFAULT
) {
1590 if (transport
->remote
->fetch_tags
== 2)
1592 if (transport
->remote
->fetch_tags
== -1)
1596 /* if not appending, truncate FETCH_HEAD */
1597 if (!append
&& write_fetch_head
) {
1598 retcode
= truncate_fetch_head();
1606 refspec_ref_prefixes(rs
, &transport_ls_refs_options
.ref_prefixes
);
1609 * We can avoid listing refs if all of them are exact
1613 for (i
= 0; i
< rs
->nr
; i
++) {
1614 if (!rs
->items
[i
].exact_sha1
) {
1620 struct branch
*branch
= branch_get(NULL
);
1622 if (transport
->remote
->fetch
.nr
)
1623 refspec_ref_prefixes(&transport
->remote
->fetch
,
1624 &transport_ls_refs_options
.ref_prefixes
);
1625 if (branch_has_merge_config(branch
) &&
1626 !strcmp(branch
->remote_name
, transport
->remote
->name
)) {
1628 for (i
= 0; i
< branch
->merge_nr
; i
++) {
1629 strvec_push(&transport_ls_refs_options
.ref_prefixes
,
1630 branch
->merge
[i
]->src
);
1635 if (tags
== TAGS_SET
|| tags
== TAGS_DEFAULT
) {
1637 if (transport_ls_refs_options
.ref_prefixes
.nr
)
1638 strvec_push(&transport_ls_refs_options
.ref_prefixes
,
1642 if (must_list_refs
) {
1643 trace2_region_enter("fetch", "remote_refs", the_repository
);
1644 remote_refs
= transport_get_remote_refs(transport
,
1645 &transport_ls_refs_options
);
1646 trace2_region_leave("fetch", "remote_refs", the_repository
);
1650 transport_ls_refs_options_release(&transport_ls_refs_options
);
1652 ref_map
= get_ref_map(transport
->remote
, remote_refs
, rs
,
1654 if (!update_head_ok
)
1655 check_not_current_branch(ref_map
);
1657 retcode
= open_fetch_head(&fetch_head
);
1661 display_state_init(&display_state
, ref_map
, transport
->url
,
1662 config
->display_format
);
1665 transaction
= ref_store_transaction_begin(get_main_ref_store(the_repository
),
1673 if (tags
== TAGS_DEFAULT
&& autotags
)
1674 transport_set_option(transport
, TRANS_OPT_FOLLOWTAGS
, "1");
1677 * We only prune based on refspecs specified
1678 * explicitly (via command line or configuration); we
1679 * don't care whether --tags was specified.
1682 retcode
= prune_refs(&display_state
, rs
, transaction
, ref_map
);
1684 retcode
= prune_refs(&display_state
, &transport
->remote
->fetch
,
1685 transaction
, ref_map
);
1691 if (fetch_and_consume_refs(&display_state
, transport
, transaction
, ref_map
,
1692 &fetch_head
, config
)) {
1698 * If neither --no-tags nor --tags was specified, do automated tag
1701 if (tags
== TAGS_DEFAULT
&& autotags
) {
1702 struct ref
*tags_ref_map
= NULL
, **tail
= &tags_ref_map
;
1704 find_non_local_tags(remote_refs
, transaction
, &tags_ref_map
, &tail
);
1707 * If backfilling of tags fails then we want to tell
1708 * the user so, but we have to continue regardless to
1709 * populate upstream information of the references we
1710 * have already fetched above. The exception though is
1711 * when `--atomic` is passed: in that case we'll abort
1712 * the transaction and don't commit anything.
1714 if (backfill_tags(&display_state
, transport
, transaction
, tags_ref_map
,
1715 &fetch_head
, config
))
1719 free_refs(tags_ref_map
);
1726 retcode
= ref_transaction_commit(transaction
, &err
);
1728 ref_transaction_free(transaction
);
1734 commit_fetch_head(&fetch_head
);
1737 struct branch
*branch
= branch_get("HEAD");
1739 struct ref
*source_ref
= NULL
;
1742 * We're setting the upstream configuration for the
1743 * current branch. The relevant upstream is the
1744 * fetched branch that is meant to be merged with the
1745 * current one, i.e. the one fetched to FETCH_HEAD.
1747 * When there are several such branches, consider the
1748 * request ambiguous and err on the safe side by doing
1749 * nothing and just emit a warning.
1751 for (rm
= ref_map
; rm
; rm
= rm
->next
) {
1752 if (!rm
->peer_ref
) {
1754 warning(_("multiple branches detected, incompatible with --set-upstream"));
1763 const char *shortname
= source_ref
->name
;
1764 skip_prefix(shortname
, "refs/heads/", &shortname
);
1766 warning(_("could not set upstream of HEAD to '%s' from '%s' when "
1767 "it does not point to any branch."),
1768 shortname
, transport
->remote
->name
);
1772 if (!strcmp(source_ref
->name
, "HEAD") ||
1773 starts_with(source_ref
->name
, "refs/heads/"))
1774 install_branch_config(0,
1776 transport
->remote
->name
,
1778 else if (starts_with(source_ref
->name
, "refs/remotes/"))
1779 warning(_("not setting upstream for a remote remote-tracking branch"));
1780 else if (starts_with(source_ref
->name
, "refs/tags/"))
1781 warning(_("not setting upstream for a remote tag"));
1783 warning(_("unknown branch type"));
1785 warning(_("no source branch found;\n"
1786 "you need to specify exactly one branch with the --set-upstream option"));
1793 error("%s", err
.buf
);
1796 if (transaction
&& ref_transaction_abort(transaction
, &err
) &&
1798 error("%s", err
.buf
);
1801 display_state_release(&display_state
);
1802 close_fetch_head(&fetch_head
);
1803 strbuf_release(&err
);
1808 static int get_one_remote_for_fetch(struct remote
*remote
, void *priv
)
1810 struct string_list
*list
= priv
;
1811 if (!remote
->skip_default_update
)
1812 string_list_append(list
, remote
->name
);
1816 struct remote_group_data
{
1818 struct string_list
*list
;
1821 static int get_remote_group(const char *key
, const char *value
,
1822 const struct config_context
*ctx UNUSED
,
1825 struct remote_group_data
*g
= priv
;
1827 if (skip_prefix(key
, "remotes.", &key
) && !strcmp(key
, g
->name
)) {
1828 /* split list by white space */
1830 size_t wordlen
= strcspn(value
, " \t\n");
1833 string_list_append_nodup(g
->list
,
1834 xstrndup(value
, wordlen
));
1835 value
+= wordlen
+ (value
[wordlen
] != '\0');
1842 static int add_remote_or_group(const char *name
, struct string_list
*list
)
1844 int prev_nr
= list
->nr
;
1845 struct remote_group_data g
;
1846 g
.name
= name
; g
.list
= list
;
1848 git_config(get_remote_group
, &g
);
1849 if (list
->nr
== prev_nr
) {
1850 struct remote
*remote
= remote_get(name
);
1851 if (!remote_is_configured(remote
, 0))
1853 string_list_append(list
, remote
->name
);
1858 static void add_options_to_argv(struct strvec
*argv
,
1859 const struct fetch_config
*config
)
1862 strvec_push(argv
, "--dry-run");
1864 strvec_push(argv
, prune
? "--prune" : "--no-prune");
1865 if (prune_tags
!= -1)
1866 strvec_push(argv
, prune_tags
? "--prune-tags" : "--no-prune-tags");
1868 strvec_push(argv
, "--update-head-ok");
1870 strvec_push(argv
, "--force");
1872 strvec_push(argv
, "--keep");
1873 if (config
->recurse_submodules
== RECURSE_SUBMODULES_ON
)
1874 strvec_push(argv
, "--recurse-submodules");
1875 else if (config
->recurse_submodules
== RECURSE_SUBMODULES_OFF
)
1876 strvec_push(argv
, "--no-recurse-submodules");
1877 else if (config
->recurse_submodules
== RECURSE_SUBMODULES_ON_DEMAND
)
1878 strvec_push(argv
, "--recurse-submodules=on-demand");
1879 if (tags
== TAGS_SET
)
1880 strvec_push(argv
, "--tags");
1881 else if (tags
== TAGS_UNSET
)
1882 strvec_push(argv
, "--no-tags");
1884 strvec_push(argv
, "-v");
1886 strvec_push(argv
, "-v");
1887 else if (verbosity
< 0)
1888 strvec_push(argv
, "-q");
1889 if (family
== TRANSPORT_FAMILY_IPV4
)
1890 strvec_push(argv
, "--ipv4");
1891 else if (family
== TRANSPORT_FAMILY_IPV6
)
1892 strvec_push(argv
, "--ipv6");
1893 if (!write_fetch_head
)
1894 strvec_push(argv
, "--no-write-fetch-head");
1895 if (config
->display_format
== DISPLAY_FORMAT_PORCELAIN
)
1896 strvec_pushf(argv
, "--porcelain");
1899 /* Fetch multiple remotes in parallel */
1901 struct parallel_fetch_state
{
1903 struct string_list
*remotes
;
1905 const struct fetch_config
*config
;
1908 static int fetch_next_remote(struct child_process
*cp
,
1909 struct strbuf
*out UNUSED
,
1910 void *cb
, void **task_cb
)
1912 struct parallel_fetch_state
*state
= cb
;
1915 if (state
->next
< 0 || state
->next
>= state
->remotes
->nr
)
1918 remote
= state
->remotes
->items
[state
->next
++].string
;
1921 strvec_pushv(&cp
->args
, state
->argv
);
1922 strvec_push(&cp
->args
, remote
);
1925 if (verbosity
>= 0 && state
->config
->display_format
!= DISPLAY_FORMAT_PORCELAIN
)
1926 printf(_("Fetching %s\n"), remote
);
1931 static int fetch_failed_to_start(struct strbuf
*out UNUSED
,
1932 void *cb
, void *task_cb
)
1934 struct parallel_fetch_state
*state
= cb
;
1935 const char *remote
= task_cb
;
1937 state
->result
= error(_("could not fetch %s"), remote
);
1942 static int fetch_finished(int result
, struct strbuf
*out
,
1943 void *cb
, void *task_cb
)
1945 struct parallel_fetch_state
*state
= cb
;
1946 const char *remote
= task_cb
;
1949 strbuf_addf(out
, _("could not fetch '%s' (exit code: %d)\n"),
1957 static int fetch_multiple(struct string_list
*list
, int max_children
,
1958 const struct fetch_config
*config
)
1961 struct strvec argv
= STRVEC_INIT
;
1963 if (!append
&& write_fetch_head
) {
1964 int errcode
= truncate_fetch_head();
1970 * Cancel out the fetch.bundleURI config when running subprocesses,
1971 * to avoid fetching from the same bundle list multiple times.
1973 strvec_pushl(&argv
, "-c", "fetch.bundleURI=",
1974 "fetch", "--append", "--no-auto-gc",
1975 "--no-write-commit-graph", NULL
);
1976 add_options_to_argv(&argv
, config
);
1978 if (max_children
!= 1 && list
->nr
!= 1) {
1979 struct parallel_fetch_state state
= { argv
.v
, list
, 0, 0, config
};
1980 const struct run_process_parallel_opts opts
= {
1981 .tr2_category
= "fetch",
1982 .tr2_label
= "parallel/fetch",
1984 .processes
= max_children
,
1986 .get_next_task
= &fetch_next_remote
,
1987 .start_failure
= &fetch_failed_to_start
,
1988 .task_finished
= &fetch_finished
,
1992 strvec_push(&argv
, "--end-of-options");
1994 run_processes_parallel(&opts
);
1995 result
= state
.result
;
1997 for (i
= 0; i
< list
->nr
; i
++) {
1998 const char *name
= list
->items
[i
].string
;
1999 struct child_process cmd
= CHILD_PROCESS_INIT
;
2001 strvec_pushv(&cmd
.args
, argv
.v
);
2002 strvec_push(&cmd
.args
, name
);
2003 if (verbosity
>= 0 && config
->display_format
!= DISPLAY_FORMAT_PORCELAIN
)
2004 printf(_("Fetching %s\n"), name
);
2006 if (run_command(&cmd
)) {
2007 error(_("could not fetch %s"), name
);
2012 strvec_clear(&argv
);
2017 * Fetching from the promisor remote should use the given filter-spec
2018 * or inherit the default filter-spec from the config.
2020 static inline void fetch_one_setup_partial(struct remote
*remote
)
2023 * Explicit --no-filter argument overrides everything, regardless
2024 * of any prior partial clones and fetches.
2026 if (filter_options
.no_filter
)
2030 * If no prior partial clone/fetch and the current fetch DID NOT
2031 * request a partial-fetch, do a normal fetch.
2033 if (!repo_has_promisor_remote(the_repository
) && !filter_options
.choice
)
2037 * If this is a partial-fetch request, we enable partial on
2038 * this repo if not already enabled and remember the given
2039 * filter-spec as the default for subsequent fetches to this
2040 * remote if there is currently no default filter-spec.
2042 if (filter_options
.choice
) {
2043 partial_clone_register(remote
->name
, &filter_options
);
2048 * Do a partial-fetch from the promisor remote using either the
2049 * explicitly given filter-spec or inherit the filter-spec from
2052 if (!filter_options
.choice
)
2053 partial_clone_get_default_filter_spec(&filter_options
, remote
->name
);
2057 static int fetch_one(struct remote
*remote
, int argc
, const char **argv
,
2058 int prune_tags_ok
, int use_stdin_refspecs
,
2059 const struct fetch_config
*config
)
2061 struct refspec rs
= REFSPEC_INIT_FETCH
;
2064 int maybe_prune_tags
;
2065 int remote_via_config
= remote_is_configured(remote
, 0);
2068 die(_("no remote repository specified; please specify either a URL or a\n"
2069 "remote name from which new revisions should be fetched"));
2071 gtransport
= prepare_transport(remote
, 1);
2074 /* no command line request */
2075 if (0 <= remote
->prune
)
2076 prune
= remote
->prune
;
2077 else if (0 <= config
->prune
)
2078 prune
= config
->prune
;
2080 prune
= PRUNE_BY_DEFAULT
;
2083 if (prune_tags
< 0) {
2084 /* no command line request */
2085 if (0 <= remote
->prune_tags
)
2086 prune_tags
= remote
->prune_tags
;
2087 else if (0 <= config
->prune_tags
)
2088 prune_tags
= config
->prune_tags
;
2090 prune_tags
= PRUNE_TAGS_BY_DEFAULT
;
2093 maybe_prune_tags
= prune_tags_ok
&& prune_tags
;
2094 if (maybe_prune_tags
&& remote_via_config
)
2095 refspec_append(&remote
->fetch
, TAG_REFSPEC
);
2097 if (maybe_prune_tags
&& (argc
|| !remote_via_config
))
2098 refspec_append(&rs
, TAG_REFSPEC
);
2100 for (i
= 0; i
< argc
; i
++) {
2101 if (!strcmp(argv
[i
], "tag")) {
2104 die(_("you need to specify a tag name"));
2106 refspec_appendf(&rs
, "refs/tags/%s:refs/tags/%s",
2109 refspec_append(&rs
, argv
[i
]);
2113 if (use_stdin_refspecs
) {
2114 struct strbuf line
= STRBUF_INIT
;
2115 while (strbuf_getline_lf(&line
, stdin
) != EOF
)
2116 refspec_append(&rs
, line
.buf
);
2117 strbuf_release(&line
);
2120 if (server_options
.nr
)
2121 gtransport
->server_options
= &server_options
;
2123 sigchain_push_common(unlock_pack_on_signal
);
2124 atexit(unlock_pack_atexit
);
2125 sigchain_push(SIGPIPE
, SIG_IGN
);
2126 exit_code
= do_fetch(gtransport
, &rs
, config
);
2127 sigchain_pop(SIGPIPE
);
2129 transport_disconnect(gtransport
);
2134 int cmd_fetch(int argc
, const char **argv
, const char *prefix
)
2136 struct fetch_config config
= {
2137 .display_format
= DISPLAY_FORMAT_FULL
,
2140 .show_forced_updates
= 1,
2141 .recurse_submodules
= RECURSE_SUBMODULES_DEFAULT
,
2143 .submodule_fetch_jobs
= -1,
2145 const char *submodule_prefix
= "";
2146 const char *bundle_uri
;
2147 struct string_list list
= STRING_LIST_INIT_DUP
;
2148 struct remote
*remote
= NULL
;
2149 int all
= -1, multiple
= 0;
2151 int prune_tags_ok
= 1;
2152 int enable_auto_gc
= 1;
2155 int recurse_submodules_cli
= RECURSE_SUBMODULES_DEFAULT
;
2156 int recurse_submodules_default
= RECURSE_SUBMODULES_ON_DEMAND
;
2157 int fetch_write_commit_graph
= -1;
2158 int stdin_refspecs
= 0;
2159 int negotiate_only
= 0;
2163 struct option builtin_fetch_options
[] = {
2164 OPT__VERBOSITY(&verbosity
),
2165 OPT_BOOL(0, "all", &all
,
2166 N_("fetch from all remotes")),
2167 OPT_BOOL(0, "set-upstream", &set_upstream
,
2168 N_("set upstream for git pull/fetch")),
2169 OPT_BOOL('a', "append", &append
,
2170 N_("append to .git/FETCH_HEAD instead of overwriting")),
2171 OPT_BOOL(0, "atomic", &atomic_fetch
,
2172 N_("use atomic transaction to update references")),
2173 OPT_STRING(0, "upload-pack", &upload_pack
, N_("path"),
2174 N_("path to upload pack on remote end")),
2175 OPT__FORCE(&force
, N_("force overwrite of local reference"), 0),
2176 OPT_BOOL('m', "multiple", &multiple
,
2177 N_("fetch from multiple remotes")),
2178 OPT_SET_INT('t', "tags", &tags
,
2179 N_("fetch all tags and associated objects"), TAGS_SET
),
2180 OPT_SET_INT('n', NULL
, &tags
,
2181 N_("do not fetch all tags (--no-tags)"), TAGS_UNSET
),
2182 OPT_INTEGER('j', "jobs", &max_jobs
,
2183 N_("number of submodules fetched in parallel")),
2184 OPT_BOOL(0, "prefetch", &prefetch
,
2185 N_("modify the refspec to place all refs within refs/prefetch/")),
2186 OPT_BOOL('p', "prune", &prune
,
2187 N_("prune remote-tracking branches no longer on remote")),
2188 OPT_BOOL('P', "prune-tags", &prune_tags
,
2189 N_("prune local tags no longer on remote and clobber changed tags")),
2190 OPT_CALLBACK_F(0, "recurse-submodules", &recurse_submodules_cli
, N_("on-demand"),
2191 N_("control recursive fetching of submodules"),
2192 PARSE_OPT_OPTARG
, option_fetch_parse_recurse_submodules
),
2193 OPT_BOOL(0, "dry-run", &dry_run
,
2195 OPT_BOOL(0, "porcelain", &porcelain
, N_("machine-readable output")),
2196 OPT_BOOL(0, "write-fetch-head", &write_fetch_head
,
2197 N_("write fetched references to the FETCH_HEAD file")),
2198 OPT_BOOL('k', "keep", &keep
, N_("keep downloaded pack")),
2199 OPT_BOOL('u', "update-head-ok", &update_head_ok
,
2200 N_("allow updating of HEAD ref")),
2201 OPT_BOOL(0, "progress", &progress
, N_("force progress reporting")),
2202 OPT_STRING(0, "depth", &depth
, N_("depth"),
2203 N_("deepen history of shallow clone")),
2204 OPT_STRING(0, "shallow-since", &deepen_since
, N_("time"),
2205 N_("deepen history of shallow repository based on time")),
2206 OPT_STRING_LIST(0, "shallow-exclude", &deepen_not
, N_("revision"),
2207 N_("deepen history of shallow clone, excluding rev")),
2208 OPT_INTEGER(0, "deepen", &deepen_relative
,
2209 N_("deepen history of shallow clone")),
2210 OPT_SET_INT_F(0, "unshallow", &unshallow
,
2211 N_("convert to a complete repository"),
2212 1, PARSE_OPT_NONEG
),
2213 OPT_SET_INT_F(0, "refetch", &refetch
,
2214 N_("re-fetch without negotiating common commits"),
2215 1, PARSE_OPT_NONEG
),
2216 { OPTION_STRING
, 0, "submodule-prefix", &submodule_prefix
, N_("dir"),
2217 N_("prepend this to submodule path output"), PARSE_OPT_HIDDEN
},
2218 OPT_CALLBACK_F(0, "recurse-submodules-default",
2219 &recurse_submodules_default
, N_("on-demand"),
2220 N_("default for recursive fetching of submodules "
2221 "(lower priority than config files)"),
2222 PARSE_OPT_HIDDEN
, option_fetch_parse_recurse_submodules
),
2223 OPT_BOOL(0, "update-shallow", &update_shallow
,
2224 N_("accept refs that update .git/shallow")),
2225 OPT_CALLBACK_F(0, "refmap", &refmap
, N_("refmap"),
2226 N_("specify fetch refmap"), PARSE_OPT_NONEG
, parse_refmap_arg
),
2227 OPT_STRING_LIST('o', "server-option", &server_options
, N_("server-specific"), N_("option to transmit")),
2228 OPT_IPVERSION(&family
),
2229 OPT_STRING_LIST(0, "negotiation-tip", &negotiation_tip
, N_("revision"),
2230 N_("report that we have only objects reachable from this object")),
2231 OPT_BOOL(0, "negotiate-only", &negotiate_only
,
2232 N_("do not fetch a packfile; instead, print ancestors of negotiation tips")),
2233 OPT_PARSE_LIST_OBJECTS_FILTER(&filter_options
),
2234 OPT_BOOL(0, "auto-maintenance", &enable_auto_gc
,
2235 N_("run 'maintenance --auto' after fetching")),
2236 OPT_BOOL(0, "auto-gc", &enable_auto_gc
,
2237 N_("run 'maintenance --auto' after fetching")),
2238 OPT_BOOL(0, "show-forced-updates", &config
.show_forced_updates
,
2239 N_("check for forced-updates on all updated branches")),
2240 OPT_BOOL(0, "write-commit-graph", &fetch_write_commit_graph
,
2241 N_("write the commit-graph after fetching")),
2242 OPT_BOOL(0, "stdin", &stdin_refspecs
,
2243 N_("accept refspecs from stdin")),
2247 packet_trace_identity("fetch");
2249 /* Record the command line for the reflog */
2250 strbuf_addstr(&default_rla
, "fetch");
2251 for (i
= 1; i
< argc
; i
++) {
2252 /* This handles non-URLs gracefully */
2253 char *anon
= transport_anonymize_url(argv
[i
]);
2255 strbuf_addf(&default_rla
, " %s", anon
);
2259 git_config(git_fetch_config
, &config
);
2260 if (the_repository
->gitdir
) {
2261 prepare_repo_settings(the_repository
);
2262 the_repository
->settings
.command_requires_full_index
= 0;
2265 argc
= parse_options(argc
, argv
, prefix
,
2266 builtin_fetch_options
, builtin_fetch_usage
, 0);
2268 if (recurse_submodules_cli
!= RECURSE_SUBMODULES_DEFAULT
)
2269 config
.recurse_submodules
= recurse_submodules_cli
;
2271 if (negotiate_only
) {
2272 switch (recurse_submodules_cli
) {
2273 case RECURSE_SUBMODULES_OFF
:
2274 case RECURSE_SUBMODULES_DEFAULT
:
2276 * --negotiate-only should never recurse into
2277 * submodules. Skip it by setting recurse_submodules to
2278 * RECURSE_SUBMODULES_OFF.
2280 config
.recurse_submodules
= RECURSE_SUBMODULES_OFF
;
2284 die(_("options '%s' and '%s' cannot be used together"),
2285 "--negotiate-only", "--recurse-submodules");
2289 if (config
.recurse_submodules
!= RECURSE_SUBMODULES_OFF
) {
2290 int *sfjc
= config
.submodule_fetch_jobs
== -1
2291 ? &config
.submodule_fetch_jobs
: NULL
;
2292 int *rs
= config
.recurse_submodules
== RECURSE_SUBMODULES_DEFAULT
2293 ? &config
.recurse_submodules
: NULL
;
2295 fetch_config_from_gitmodules(sfjc
, rs
);
2300 switch (recurse_submodules_cli
) {
2301 case RECURSE_SUBMODULES_OFF
:
2302 case RECURSE_SUBMODULES_DEFAULT
:
2304 * Reference updates in submodules would be ambiguous
2305 * in porcelain mode, so we reject this combination.
2307 config
.recurse_submodules
= RECURSE_SUBMODULES_OFF
;
2311 die(_("options '%s' and '%s' cannot be used together"),
2312 "--porcelain", "--recurse-submodules");
2315 config
.display_format
= DISPLAY_FORMAT_PORCELAIN
;
2318 if (negotiate_only
&& !negotiation_tip
.nr
)
2319 die(_("--negotiate-only needs one or more --negotiation-tip=*"));
2321 if (deepen_relative
) {
2322 if (deepen_relative
< 0)
2323 die(_("negative depth in --deepen is not supported"));
2325 die(_("options '%s' and '%s' cannot be used together"), "--deepen", "--depth");
2326 depth
= xstrfmt("%d", deepen_relative
);
2330 die(_("options '%s' and '%s' cannot be used together"), "--depth", "--unshallow");
2331 else if (!is_repository_shallow(the_repository
))
2332 die(_("--unshallow on a complete repository does not make sense"));
2334 depth
= xstrfmt("%d", INFINITE_DEPTH
);
2337 /* no need to be strict, transport_set_option() will validate it again */
2338 if (depth
&& atoi(depth
) < 1)
2339 die(_("depth %s is not a positive number"), depth
);
2340 if (depth
|| deepen_since
|| deepen_not
.nr
)
2343 /* FETCH_HEAD never gets updated in --dry-run mode */
2345 write_fetch_head
= 0;
2348 max_jobs
= online_cpus();
2350 if (!git_config_get_string_tmp("fetch.bundleuri", &bundle_uri
) &&
2351 fetch_bundle_uri(the_repository
, bundle_uri
, NULL
))
2352 warning(_("failed to fetch bundles from '%s'"), bundle_uri
);
2356 * no --[no-]all given;
2357 * only use config option if no remote was explicitly specified
2359 all
= (!argc
) ? config
.all
: 0;
2364 die(_("fetch --all does not take a repository argument"));
2366 die(_("fetch --all does not make sense with refspecs"));
2368 (void) for_each_remote(get_one_remote_for_fetch
, &list
);
2370 /* do not do fetch_multiple() of one */
2372 remote
= remote_get(list
.items
[0].string
);
2373 } else if (argc
== 0) {
2374 /* No arguments -- use default remote */
2375 remote
= remote_get(NULL
);
2376 } else if (multiple
) {
2377 /* All arguments are assumed to be remotes or groups */
2378 for (i
= 0; i
< argc
; i
++)
2379 if (!add_remote_or_group(argv
[i
], &list
))
2380 die(_("no such remote or remote group: %s"),
2383 /* Single remote or group */
2384 (void) add_remote_or_group(argv
[0], &list
);
2386 /* More than one remote */
2388 die(_("fetching a group and specifying refspecs does not make sense"));
2390 /* Zero or one remotes */
2391 remote
= remote_get(argv
[0]);
2392 prune_tags_ok
= (argc
== 1);
2397 string_list_remove_duplicates(&list
, 0);
2399 if (negotiate_only
) {
2400 struct oidset acked_commits
= OIDSET_INIT
;
2401 struct oidset_iter iter
;
2402 const struct object_id
*oid
;
2405 die(_("must supply remote when using --negotiate-only"));
2406 gtransport
= prepare_transport(remote
, 1);
2407 if (gtransport
->smart_options
) {
2408 gtransport
->smart_options
->acked_commits
= &acked_commits
;
2410 warning(_("protocol does not support --negotiate-only, exiting"));
2414 if (server_options
.nr
)
2415 gtransport
->server_options
= &server_options
;
2416 result
= transport_fetch_refs(gtransport
, NULL
);
2418 oidset_iter_init(&acked_commits
, &iter
);
2419 while ((oid
= oidset_iter_next(&iter
)))
2420 printf("%s\n", oid_to_hex(oid
));
2421 oidset_clear(&acked_commits
);
2422 } else if (remote
) {
2423 if (filter_options
.choice
|| repo_has_promisor_remote(the_repository
))
2424 fetch_one_setup_partial(remote
);
2425 result
= fetch_one(remote
, argc
, argv
, prune_tags_ok
, stdin_refspecs
,
2428 int max_children
= max_jobs
;
2430 if (filter_options
.choice
)
2431 die(_("--filter can only be used with the remote "
2432 "configured in extensions.partialclone"));
2435 die(_("--atomic can only be used when fetching "
2436 "from one remote"));
2439 die(_("--stdin can only be used when fetching "
2440 "from one remote"));
2442 if (max_children
< 0)
2443 max_children
= config
.parallel
;
2445 /* TODO should this also die if we have a previous partial-clone? */
2446 result
= fetch_multiple(&list
, max_children
, &config
);
2450 * This is only needed after fetch_one(), which does not fetch
2451 * submodules by itself.
2453 * When we fetch from multiple remotes, fetch_multiple() has
2454 * already updated submodules to grab commits necessary for
2455 * the fetched history from each remote, so there is no need
2456 * to fetch submodules from here.
2458 if (!result
&& remote
&& (config
.recurse_submodules
!= RECURSE_SUBMODULES_OFF
)) {
2459 struct strvec options
= STRVEC_INIT
;
2460 int max_children
= max_jobs
;
2462 if (max_children
< 0)
2463 max_children
= config
.submodule_fetch_jobs
;
2464 if (max_children
< 0)
2465 max_children
= config
.parallel
;
2467 add_options_to_argv(&options
, &config
);
2468 result
= fetch_submodules(the_repository
,
2471 config
.recurse_submodules
,
2472 recurse_submodules_default
,
2475 strvec_clear(&options
);
2479 * Skip irrelevant tasks because we know objects were not
2482 * NEEDSWORK: as a future optimization, we can return early
2483 * whenever objects were not fetched e.g. if we already have all
2489 prepare_repo_settings(the_repository
);
2490 if (fetch_write_commit_graph
> 0 ||
2491 (fetch_write_commit_graph
< 0 &&
2492 the_repository
->settings
.fetch_write_commit_graph
)) {
2493 int commit_graph_flags
= COMMIT_GRAPH_WRITE_SPLIT
;
2496 commit_graph_flags
|= COMMIT_GRAPH_WRITE_PROGRESS
;
2498 write_commit_graph_reachable(the_repository
->objects
->odb
,
2503 if (enable_auto_gc
) {
2506 * Hint auto-maintenance strongly to encourage repacking,
2507 * but respect config settings disabling it.
2510 if (git_config_get_int("gc.autopacklimit", &opt_val
))
2513 git_config_push_parameter("gc.autoPackLimit=1");
2515 if (git_config_get_int("maintenance.incremental-repack.auto", &opt_val
))
2518 git_config_push_parameter("maintenance.incremental-repack.auto=-1");
2520 run_auto_maintenance(verbosity
< 0);
2524 string_list_clear(&list
, 0);