8 #include "environment.h"
10 #include "repository.h"
13 #include "object-name.h"
14 #include "object-store.h"
16 #include "oid-array.h"
19 #include "string-list.h"
21 #include "transport.h"
22 #include "run-command.h"
23 #include "parse-options.h"
25 #include "submodule-config.h"
26 #include "submodule.h"
27 #include "connected.h"
33 #include "list-objects-filter-options.h"
34 #include "commit-reach.h"
36 #include "promisor-remote.h"
37 #include "commit-graph.h"
42 #include "bundle-uri.h"
44 #define FORCED_UPDATES_DELAY_WARNING_IN_MS (10 * 1000)
46 static const char * const builtin_fetch_usage
[] = {
47 N_("git fetch [<options>] [<repository> [<refspec>...]]"),
48 N_("git fetch [<options>] <group>"),
49 N_("git fetch --multiple [<options>] [(<repository> | <group>)...]"),
50 N_("git fetch --all [<options>]"),
61 DISPLAY_FORMAT_UNKNOWN
= 0,
63 DISPLAY_FORMAT_COMPACT
,
64 DISPLAY_FORMAT_PORCELAIN
,
67 struct display_state
{
71 enum display_format format
;
74 int url_len
, shown_url
;
77 static int fetch_prune_config
= -1; /* unspecified */
78 static int fetch_show_forced_updates
= 1;
79 static uint64_t forced_updates_ms
= 0;
80 static int prefetch
= 0;
81 static int prune
= -1; /* unspecified */
82 #define PRUNE_BY_DEFAULT 0 /* do we prune by default? */
84 static int fetch_prune_tags_config
= -1; /* unspecified */
85 static int prune_tags
= -1; /* unspecified */
86 #define PRUNE_TAGS_BY_DEFAULT 0 /* do we prune tags by default? */
88 static int append
, dry_run
, force
, keep
, update_head_ok
;
89 static int write_fetch_head
= 1;
90 static int verbosity
, deepen_relative
, set_upstream
, refetch
;
91 static int progress
= -1;
92 static int tags
= TAGS_DEFAULT
, update_shallow
, deepen
;
93 static int submodule_fetch_jobs_config
= -1;
94 static int fetch_parallel_config
= 1;
95 static int atomic_fetch
;
96 static enum transport_family family
;
97 static const char *depth
;
98 static const char *deepen_since
;
99 static const char *upload_pack
;
100 static struct string_list deepen_not
= STRING_LIST_INIT_NODUP
;
101 static struct strbuf default_rla
= STRBUF_INIT
;
102 static struct transport
*gtransport
;
103 static struct transport
*gsecondary
;
104 static int recurse_submodules
= RECURSE_SUBMODULES_DEFAULT
;
105 static struct refspec refmap
= REFSPEC_INIT_FETCH
;
106 static struct list_objects_filter_options filter_options
= LIST_OBJECTS_FILTER_INIT
;
107 static struct string_list server_options
= STRING_LIST_INIT_DUP
;
108 static struct string_list negotiation_tip
= STRING_LIST_INIT_NODUP
;
110 struct fetch_config
{
111 enum display_format display_format
;
114 static int git_fetch_config(const char *k
, const char *v
, void *cb
)
116 struct fetch_config
*fetch_config
= cb
;
118 if (!strcmp(k
, "fetch.prune")) {
119 fetch_prune_config
= git_config_bool(k
, v
);
123 if (!strcmp(k
, "fetch.prunetags")) {
124 fetch_prune_tags_config
= git_config_bool(k
, v
);
128 if (!strcmp(k
, "fetch.showforcedupdates")) {
129 fetch_show_forced_updates
= git_config_bool(k
, v
);
133 if (!strcmp(k
, "submodule.recurse")) {
134 int r
= git_config_bool(k
, v
) ?
135 RECURSE_SUBMODULES_ON
: RECURSE_SUBMODULES_OFF
;
136 recurse_submodules
= r
;
139 if (!strcmp(k
, "submodule.fetchjobs")) {
140 submodule_fetch_jobs_config
= parse_submodule_fetchjobs(k
, v
);
142 } else if (!strcmp(k
, "fetch.recursesubmodules")) {
143 recurse_submodules
= parse_fetch_recurse_submodules_arg(k
, v
);
147 if (!strcmp(k
, "fetch.parallel")) {
148 fetch_parallel_config
= git_config_int(k
, v
);
149 if (fetch_parallel_config
< 0)
150 die(_("fetch.parallel cannot be negative"));
151 if (!fetch_parallel_config
)
152 fetch_parallel_config
= online_cpus();
156 if (!strcmp(k
, "fetch.output")) {
158 return config_error_nonbool(k
);
159 else if (!strcasecmp(v
, "full"))
160 fetch_config
->display_format
= DISPLAY_FORMAT_FULL
;
161 else if (!strcasecmp(v
, "compact"))
162 fetch_config
->display_format
= DISPLAY_FORMAT_COMPACT
;
164 die(_("invalid value for '%s': '%s'"),
168 return git_default_config(k
, v
, cb
);
171 static int parse_refmap_arg(const struct option
*opt
, const char *arg
, int unset
)
173 BUG_ON_OPT_NEG(unset
);
176 * "git fetch --refmap='' origin foo"
177 * can be used to tell the command not to store anywhere
179 refspec_append(&refmap
, arg
);
184 static void unlock_pack(unsigned int flags
)
187 transport_unlock_pack(gtransport
, flags
);
189 transport_unlock_pack(gsecondary
, flags
);
192 static void unlock_pack_atexit(void)
197 static void unlock_pack_on_signal(int signo
)
199 unlock_pack(TRANSPORT_UNLOCK_PACK_IN_SIGNAL_HANDLER
);
204 static void add_merge_config(struct ref
**head
,
205 const struct ref
*remote_refs
,
206 struct branch
*branch
,
211 for (i
= 0; i
< branch
->merge_nr
; i
++) {
212 struct ref
*rm
, **old_tail
= *tail
;
213 struct refspec_item refspec
;
215 for (rm
= *head
; rm
; rm
= rm
->next
) {
216 if (branch_merge_matches(branch
, i
, rm
->name
)) {
217 rm
->fetch_head_status
= FETCH_HEAD_MERGE
;
225 * Not fetched to a remote-tracking branch? We need to fetch
226 * it anyway to allow this branch's "branch.$name.merge"
227 * to be honored by 'git pull', but we do not have to
228 * fail if branch.$name.merge is misconfigured to point
229 * at a nonexisting branch. If we were indeed called by
230 * 'git pull', it will notice the misconfiguration because
231 * there is no entry in the resulting FETCH_HEAD marked
234 memset(&refspec
, 0, sizeof(refspec
));
235 refspec
.src
= branch
->merge
[i
]->src
;
236 get_fetch_map(remote_refs
, &refspec
, tail
, 1);
237 for (rm
= *old_tail
; rm
; rm
= rm
->next
)
238 rm
->fetch_head_status
= FETCH_HEAD_MERGE
;
242 static void create_fetch_oidset(struct ref
**head
, struct oidset
*out
)
244 struct ref
*rm
= *head
;
246 oidset_insert(out
, &rm
->old_oid
);
251 struct refname_hash_entry
{
252 struct hashmap_entry ent
;
253 struct object_id oid
;
255 char refname
[FLEX_ARRAY
];
258 static int refname_hash_entry_cmp(const void *hashmap_cmp_fn_data UNUSED
,
259 const struct hashmap_entry
*eptr
,
260 const struct hashmap_entry
*entry_or_key
,
263 const struct refname_hash_entry
*e1
, *e2
;
265 e1
= container_of(eptr
, const struct refname_hash_entry
, ent
);
266 e2
= container_of(entry_or_key
, const struct refname_hash_entry
, ent
);
267 return strcmp(e1
->refname
, keydata
? keydata
: e2
->refname
);
270 static struct refname_hash_entry
*refname_hash_add(struct hashmap
*map
,
272 const struct object_id
*oid
)
274 struct refname_hash_entry
*ent
;
275 size_t len
= strlen(refname
);
277 FLEX_ALLOC_MEM(ent
, refname
, refname
, len
);
278 hashmap_entry_init(&ent
->ent
, strhash(refname
));
279 oidcpy(&ent
->oid
, oid
);
280 hashmap_add(map
, &ent
->ent
);
284 static int add_one_refname(const char *refname
,
285 const struct object_id
*oid
,
286 int flag UNUSED
, void *cbdata
)
288 struct hashmap
*refname_map
= cbdata
;
290 (void) refname_hash_add(refname_map
, refname
, oid
);
294 static void refname_hash_init(struct hashmap
*map
)
296 hashmap_init(map
, refname_hash_entry_cmp
, NULL
, 0);
299 static int refname_hash_exists(struct hashmap
*map
, const char *refname
)
301 return !!hashmap_get_from_hash(map
, strhash(refname
), refname
);
304 static void clear_item(struct refname_hash_entry
*item
)
310 static void add_already_queued_tags(const char *refname
,
311 const struct object_id
*old_oid
,
312 const struct object_id
*new_oid
,
315 struct hashmap
*queued_tags
= cb_data
;
316 if (starts_with(refname
, "refs/tags/") && new_oid
)
317 (void) refname_hash_add(queued_tags
, refname
, new_oid
);
320 static void find_non_local_tags(const struct ref
*refs
,
321 struct ref_transaction
*transaction
,
325 struct hashmap existing_refs
;
326 struct hashmap remote_refs
;
327 struct oidset fetch_oids
= OIDSET_INIT
;
328 struct string_list remote_refs_list
= STRING_LIST_INIT_NODUP
;
329 struct string_list_item
*remote_ref_item
;
330 const struct ref
*ref
;
331 struct refname_hash_entry
*item
= NULL
;
332 const int quick_flags
= OBJECT_INFO_QUICK
| OBJECT_INFO_SKIP_FETCH_OBJECT
;
334 refname_hash_init(&existing_refs
);
335 refname_hash_init(&remote_refs
);
336 create_fetch_oidset(head
, &fetch_oids
);
338 for_each_ref(add_one_refname
, &existing_refs
);
341 * If we already have a transaction, then we need to filter out all
342 * tags which have already been queued up.
345 ref_transaction_for_each_queued_update(transaction
,
346 add_already_queued_tags
,
349 for (ref
= refs
; ref
; ref
= ref
->next
) {
350 if (!starts_with(ref
->name
, "refs/tags/"))
354 * The peeled ref always follows the matching base
355 * ref, so if we see a peeled ref that we don't want
356 * to fetch then we can mark the ref entry in the list
357 * as one to ignore by setting util to NULL.
359 if (ends_with(ref
->name
, "^{}")) {
361 !repo_has_object_file_with_flags(the_repository
, &ref
->old_oid
, quick_flags
) &&
362 !oidset_contains(&fetch_oids
, &ref
->old_oid
) &&
363 !repo_has_object_file_with_flags(the_repository
, &item
->oid
, quick_flags
) &&
364 !oidset_contains(&fetch_oids
, &item
->oid
))
371 * If item is non-NULL here, then we previously saw a
372 * ref not followed by a peeled reference, so we need
373 * to check if it is a lightweight tag that we want to
377 !repo_has_object_file_with_flags(the_repository
, &item
->oid
, quick_flags
) &&
378 !oidset_contains(&fetch_oids
, &item
->oid
))
383 /* skip duplicates and refs that we already have */
384 if (refname_hash_exists(&remote_refs
, ref
->name
) ||
385 refname_hash_exists(&existing_refs
, ref
->name
))
388 item
= refname_hash_add(&remote_refs
, ref
->name
, &ref
->old_oid
);
389 string_list_insert(&remote_refs_list
, ref
->name
);
391 hashmap_clear_and_free(&existing_refs
, struct refname_hash_entry
, ent
);
394 * We may have a final lightweight tag that needs to be
395 * checked to see if it needs fetching.
398 !repo_has_object_file_with_flags(the_repository
, &item
->oid
, quick_flags
) &&
399 !oidset_contains(&fetch_oids
, &item
->oid
))
403 * For all the tags in the remote_refs_list,
404 * add them to the list of refs to be fetched
406 for_each_string_list_item(remote_ref_item
, &remote_refs_list
) {
407 const char *refname
= remote_ref_item
->string
;
409 unsigned int hash
= strhash(refname
);
411 item
= hashmap_get_entry_from_hash(&remote_refs
, hash
, refname
,
412 struct refname_hash_entry
, ent
);
414 BUG("unseen remote ref?");
416 /* Unless we have already decided to ignore this item... */
420 rm
= alloc_ref(item
->refname
);
421 rm
->peer_ref
= alloc_ref(item
->refname
);
422 oidcpy(&rm
->old_oid
, &item
->oid
);
426 hashmap_clear_and_free(&remote_refs
, struct refname_hash_entry
, ent
);
427 string_list_clear(&remote_refs_list
, 0);
428 oidset_clear(&fetch_oids
);
431 static void filter_prefetch_refspec(struct refspec
*rs
)
438 for (i
= 0; i
< rs
->nr
; i
++) {
439 struct strbuf new_dst
= STRBUF_INIT
;
441 const char *sub
= NULL
;
443 if (rs
->items
[i
].negative
)
445 if (!rs
->items
[i
].dst
||
447 !strncmp(rs
->items
[i
].src
,
448 ref_namespace
[NAMESPACE_TAGS
].ref
,
449 strlen(ref_namespace
[NAMESPACE_TAGS
].ref
)))) {
452 free(rs
->items
[i
].src
);
453 free(rs
->items
[i
].dst
);
455 for (j
= i
+ 1; j
< rs
->nr
; j
++) {
456 rs
->items
[j
- 1] = rs
->items
[j
];
457 rs
->raw
[j
- 1] = rs
->raw
[j
];
464 old_dst
= rs
->items
[i
].dst
;
465 strbuf_addstr(&new_dst
, ref_namespace
[NAMESPACE_PREFETCH
].ref
);
468 * If old_dst starts with "refs/", then place
469 * sub after that prefix. Otherwise, start at
470 * the beginning of the string.
472 if (!skip_prefix(old_dst
, "refs/", &sub
))
474 strbuf_addstr(&new_dst
, sub
);
476 rs
->items
[i
].dst
= strbuf_detach(&new_dst
, NULL
);
477 rs
->items
[i
].force
= 1;
483 static struct ref
*get_ref_map(struct remote
*remote
,
484 const struct ref
*remote_refs
,
486 int tags
, int *autotags
)
490 struct ref
*ref_map
= NULL
;
491 struct ref
**tail
= &ref_map
;
493 /* opportunistically-updated references: */
494 struct ref
*orefs
= NULL
, **oref_tail
= &orefs
;
496 struct hashmap existing_refs
;
497 int existing_refs_populated
= 0;
499 filter_prefetch_refspec(rs
);
501 filter_prefetch_refspec(&remote
->fetch
);
504 struct refspec
*fetch_refspec
;
506 for (i
= 0; i
< rs
->nr
; i
++) {
507 get_fetch_map(remote_refs
, &rs
->items
[i
], &tail
, 0);
508 if (rs
->items
[i
].dst
&& rs
->items
[i
].dst
[0])
511 /* Merge everything on the command line (but not --tags) */
512 for (rm
= ref_map
; rm
; rm
= rm
->next
)
513 rm
->fetch_head_status
= FETCH_HEAD_MERGE
;
516 * For any refs that we happen to be fetching via
517 * command-line arguments, the destination ref might
518 * have been missing or have been different than the
519 * remote-tracking ref that would be derived from the
520 * configured refspec. In these cases, we want to
521 * take the opportunity to update their configured
522 * remote-tracking reference. However, we do not want
523 * to mention these entries in FETCH_HEAD at all, as
524 * they would simply be duplicates of existing
525 * entries, so we set them FETCH_HEAD_IGNORE below.
527 * We compute these entries now, based only on the
528 * refspecs specified on the command line. But we add
529 * them to the list following the refspecs resulting
530 * from the tags option so that one of the latter,
531 * which has FETCH_HEAD_NOT_FOR_MERGE, is not removed
532 * by ref_remove_duplicates() in favor of one of these
533 * opportunistic entries with FETCH_HEAD_IGNORE.
536 fetch_refspec
= &refmap
;
538 fetch_refspec
= &remote
->fetch
;
540 for (i
= 0; i
< fetch_refspec
->nr
; i
++)
541 get_fetch_map(ref_map
, &fetch_refspec
->items
[i
], &oref_tail
, 1);
542 } else if (refmap
.nr
) {
543 die("--refmap option is only meaningful with command-line refspec(s)");
545 /* Use the defaults */
546 struct branch
*branch
= branch_get(NULL
);
547 int has_merge
= branch_has_merge_config(branch
);
550 /* Note: has_merge implies non-NULL branch->remote_name */
551 (has_merge
&& !strcmp(branch
->remote_name
, remote
->name
)))) {
552 for (i
= 0; i
< remote
->fetch
.nr
; i
++) {
553 get_fetch_map(remote_refs
, &remote
->fetch
.items
[i
], &tail
, 0);
554 if (remote
->fetch
.items
[i
].dst
&&
555 remote
->fetch
.items
[i
].dst
[0])
557 if (!i
&& !has_merge
&& ref_map
&&
558 !remote
->fetch
.items
[0].pattern
)
559 ref_map
->fetch_head_status
= FETCH_HEAD_MERGE
;
562 * if the remote we're fetching from is the same
563 * as given in branch.<name>.remote, we add the
564 * ref given in branch.<name>.merge, too.
566 * Note: has_merge implies non-NULL branch->remote_name
569 !strcmp(branch
->remote_name
, remote
->name
))
570 add_merge_config(&ref_map
, remote_refs
, branch
, &tail
);
571 } else if (!prefetch
) {
572 ref_map
= get_remote_ref(remote_refs
, "HEAD");
574 die(_("couldn't find remote ref HEAD"));
575 ref_map
->fetch_head_status
= FETCH_HEAD_MERGE
;
576 tail
= &ref_map
->next
;
580 if (tags
== TAGS_SET
)
581 /* also fetch all tags */
582 get_fetch_map(remote_refs
, tag_refspec
, &tail
, 0);
583 else if (tags
== TAGS_DEFAULT
&& *autotags
)
584 find_non_local_tags(remote_refs
, NULL
, &ref_map
, &tail
);
586 /* Now append any refs to be updated opportunistically: */
588 for (rm
= orefs
; rm
; rm
= rm
->next
) {
589 rm
->fetch_head_status
= FETCH_HEAD_IGNORE
;
594 * apply negative refspecs first, before we remove duplicates. This is
595 * necessary as negative refspecs might remove an otherwise conflicting
599 ref_map
= apply_negative_refspecs(ref_map
, rs
);
601 ref_map
= apply_negative_refspecs(ref_map
, &remote
->fetch
);
603 ref_map
= ref_remove_duplicates(ref_map
);
605 for (rm
= ref_map
; rm
; rm
= rm
->next
) {
607 const char *refname
= rm
->peer_ref
->name
;
608 struct refname_hash_entry
*peer_item
;
609 unsigned int hash
= strhash(refname
);
611 if (!existing_refs_populated
) {
612 refname_hash_init(&existing_refs
);
613 for_each_ref(add_one_refname
, &existing_refs
);
614 existing_refs_populated
= 1;
617 peer_item
= hashmap_get_entry_from_hash(&existing_refs
,
619 struct refname_hash_entry
, ent
);
621 struct object_id
*old_oid
= &peer_item
->oid
;
622 oidcpy(&rm
->peer_ref
->old_oid
, old_oid
);
626 if (existing_refs_populated
)
627 hashmap_clear_and_free(&existing_refs
, struct refname_hash_entry
, ent
);
632 #define STORE_REF_ERROR_OTHER 1
633 #define STORE_REF_ERROR_DF_CONFLICT 2
635 static int s_update_ref(const char *action
,
637 struct ref_transaction
*transaction
,
641 char *rla
= getenv("GIT_REFLOG_ACTION");
642 struct ref_transaction
*our_transaction
= NULL
;
643 struct strbuf err
= STRBUF_INIT
;
649 rla
= default_rla
.buf
;
650 msg
= xstrfmt("%s: %s", rla
, action
);
653 * If no transaction was passed to us, we manage the transaction
654 * ourselves. Otherwise, we trust the caller to handle the transaction
658 transaction
= our_transaction
= ref_transaction_begin(&err
);
660 ret
= STORE_REF_ERROR_OTHER
;
665 ret
= ref_transaction_update(transaction
, ref
->name
, &ref
->new_oid
,
666 check_old
? &ref
->old_oid
: NULL
,
669 ret
= STORE_REF_ERROR_OTHER
;
673 if (our_transaction
) {
674 switch (ref_transaction_commit(our_transaction
, &err
)) {
677 case TRANSACTION_NAME_CONFLICT
:
678 ret
= STORE_REF_ERROR_DF_CONFLICT
;
681 ret
= STORE_REF_ERROR_OTHER
;
687 ref_transaction_free(our_transaction
);
689 error("%s", err
.buf
);
690 strbuf_release(&err
);
695 static int refcol_width(const struct ref
*ref_map
, int compact_format
)
697 const struct ref
*ref
;
700 max
= term_columns();
704 for (ref
= ref_map
; ref
; ref
= ref
->next
) {
705 int rlen
, llen
= 0, len
;
707 if (ref
->status
== REF_STATUS_REJECT_SHALLOW
||
709 !strcmp(ref
->name
, "HEAD"))
712 /* uptodate lines are only shown on high verbosity level */
713 if (verbosity
<= 0 && oideq(&ref
->peer_ref
->old_oid
, &ref
->old_oid
))
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 len
= 21 /* flag and summary */ + rlen
+ 4 /* -> */ + llen
;
737 static void display_state_init(struct display_state
*display_state
, struct ref
*ref_map
,
738 const char *raw_url
, enum display_format format
)
742 memset(display_state
, 0, sizeof(*display_state
));
743 strbuf_init(&display_state
->buf
, 0);
744 display_state
->format
= format
;
747 display_state
->url
= transport_anonymize_url(raw_url
);
749 display_state
->url
= xstrdup("foreign");
751 display_state
->url_len
= strlen(display_state
->url
);
752 for (i
= display_state
->url_len
- 1; display_state
->url
[i
] == '/' && 0 <= i
; i
--)
754 display_state
->url_len
= i
+ 1;
755 if (4 < i
&& !strncmp(".git", display_state
->url
+ i
- 3, 4))
756 display_state
->url_len
= i
- 3;
761 switch (display_state
->format
) {
762 case DISPLAY_FORMAT_FULL
:
763 case DISPLAY_FORMAT_COMPACT
:
764 display_state
->refcol_width
= refcol_width(ref_map
,
765 display_state
->format
== DISPLAY_FORMAT_COMPACT
);
767 case DISPLAY_FORMAT_PORCELAIN
:
768 /* We don't need to precompute anything here. */
771 BUG("unexpected display format %d", display_state
->format
);
775 static void display_state_release(struct display_state
*display_state
)
777 strbuf_release(&display_state
->buf
);
778 free(display_state
->url
);
781 static void print_remote_to_local(struct display_state
*display_state
,
782 const char *remote
, const char *local
)
784 strbuf_addf(&display_state
->buf
, "%-*s -> %s",
785 display_state
->refcol_width
, remote
, local
);
788 static int find_and_replace(struct strbuf
*haystack
,
790 const char *placeholder
)
792 const char *p
= NULL
;
795 nlen
= strlen(needle
);
796 if (ends_with(haystack
->buf
, needle
))
797 p
= haystack
->buf
+ haystack
->len
- nlen
;
799 p
= strstr(haystack
->buf
, needle
);
803 if (p
> haystack
->buf
&& p
[-1] != '/')
807 if (plen
> nlen
&& p
[nlen
] != '/')
810 strbuf_splice(haystack
, p
- haystack
->buf
, nlen
,
811 placeholder
, strlen(placeholder
));
815 static void print_compact(struct display_state
*display_state
,
816 const char *remote
, const char *local
)
818 struct strbuf r
= STRBUF_INIT
;
819 struct strbuf l
= STRBUF_INIT
;
821 if (!strcmp(remote
, local
)) {
822 strbuf_addf(&display_state
->buf
, "%-*s -> *", display_state
->refcol_width
, remote
);
826 strbuf_addstr(&r
, remote
);
827 strbuf_addstr(&l
, local
);
829 if (!find_and_replace(&r
, local
, "*"))
830 find_and_replace(&l
, remote
, "*");
831 print_remote_to_local(display_state
, r
.buf
, l
.buf
);
837 static void display_ref_update(struct display_state
*display_state
, char code
,
838 const char *summary
, const char *error
,
839 const char *remote
, const char *local
,
840 const struct object_id
*old_oid
,
841 const struct object_id
*new_oid
,
849 strbuf_reset(&display_state
->buf
);
851 switch (display_state
->format
) {
852 case DISPLAY_FORMAT_FULL
:
853 case DISPLAY_FORMAT_COMPACT
: {
856 if (!display_state
->shown_url
) {
857 strbuf_addf(&display_state
->buf
, _("From %.*s\n"),
858 display_state
->url_len
, display_state
->url
);
859 display_state
->shown_url
= 1;
862 width
= (summary_width
+ strlen(summary
) - gettext_width(summary
));
863 remote
= prettify_refname(remote
);
864 local
= prettify_refname(local
);
866 strbuf_addf(&display_state
->buf
, " %c %-*s ", code
, width
, summary
);
868 if (display_state
->format
!= DISPLAY_FORMAT_COMPACT
)
869 print_remote_to_local(display_state
, remote
, local
);
871 print_compact(display_state
, remote
, local
);
874 strbuf_addf(&display_state
->buf
, " (%s)", error
);
878 case DISPLAY_FORMAT_PORCELAIN
:
879 strbuf_addf(&display_state
->buf
, "%c %s %s %s", code
,
880 oid_to_hex(old_oid
), oid_to_hex(new_oid
), local
);
884 BUG("unexpected display format %d", display_state
->format
);
886 strbuf_addch(&display_state
->buf
, '\n');
888 fputs(display_state
->buf
.buf
, f
);
891 static int update_local_ref(struct ref
*ref
,
892 struct ref_transaction
*transaction
,
893 struct display_state
*display_state
,
894 const struct ref
*remote_ref
,
897 struct commit
*current
= NULL
, *updated
;
898 int fast_forward
= 0;
900 if (!repo_has_object_file(the_repository
, &ref
->new_oid
))
901 die(_("object %s not found"), oid_to_hex(&ref
->new_oid
));
903 if (oideq(&ref
->old_oid
, &ref
->new_oid
)) {
905 display_ref_update(display_state
, '=', _("[up to date]"), NULL
,
906 remote_ref
->name
, ref
->name
,
907 &ref
->old_oid
, &ref
->new_oid
, summary_width
);
911 if (!update_head_ok
&&
912 !is_null_oid(&ref
->old_oid
) &&
913 branch_checked_out(ref
->name
)) {
915 * If this is the head, and it's not okay to update
916 * the head, and the old value of the head isn't empty...
918 display_ref_update(display_state
, '!', _("[rejected]"),
919 _("can't fetch into checked-out branch"),
920 remote_ref
->name
, ref
->name
,
921 &ref
->old_oid
, &ref
->new_oid
, summary_width
);
925 if (!is_null_oid(&ref
->old_oid
) &&
926 starts_with(ref
->name
, "refs/tags/")) {
927 if (force
|| ref
->force
) {
929 r
= s_update_ref("updating tag", ref
, transaction
, 0);
930 display_ref_update(display_state
, r
? '!' : 't', _("[tag update]"),
931 r
? _("unable to update local ref") : NULL
,
932 remote_ref
->name
, ref
->name
,
933 &ref
->old_oid
, &ref
->new_oid
, summary_width
);
936 display_ref_update(display_state
, '!', _("[rejected]"),
937 _("would clobber existing tag"),
938 remote_ref
->name
, ref
->name
,
939 &ref
->old_oid
, &ref
->new_oid
, summary_width
);
944 current
= lookup_commit_reference_gently(the_repository
,
946 updated
= lookup_commit_reference_gently(the_repository
,
948 if (!current
|| !updated
) {
953 * Nicely describe the new ref we're fetching.
954 * Base this on the remote's ref name, as it's
955 * more likely to follow a standard layout.
957 const char *name
= remote_ref
? remote_ref
->name
: "";
958 if (starts_with(name
, "refs/tags/")) {
960 what
= _("[new tag]");
961 } else if (starts_with(name
, "refs/heads/")) {
962 msg
= "storing head";
963 what
= _("[new branch]");
966 what
= _("[new ref]");
969 r
= s_update_ref(msg
, ref
, transaction
, 0);
970 display_ref_update(display_state
, r
? '!' : '*', what
,
971 r
? _("unable to update local ref") : NULL
,
972 remote_ref
->name
, ref
->name
,
973 &ref
->old_oid
, &ref
->new_oid
, summary_width
);
977 if (fetch_show_forced_updates
) {
978 uint64_t t_before
= getnanotime();
979 fast_forward
= repo_in_merge_bases(the_repository
, current
,
981 forced_updates_ms
+= (getnanotime() - t_before
) / 1000000;
987 struct strbuf quickref
= STRBUF_INIT
;
990 strbuf_add_unique_abbrev(&quickref
, ¤t
->object
.oid
, DEFAULT_ABBREV
);
991 strbuf_addstr(&quickref
, "..");
992 strbuf_add_unique_abbrev(&quickref
, &ref
->new_oid
, DEFAULT_ABBREV
);
993 r
= s_update_ref("fast-forward", ref
, transaction
, 1);
994 display_ref_update(display_state
, r
? '!' : ' ', quickref
.buf
,
995 r
? _("unable to update local ref") : NULL
,
996 remote_ref
->name
, ref
->name
,
997 &ref
->old_oid
, &ref
->new_oid
, summary_width
);
998 strbuf_release(&quickref
);
1000 } else if (force
|| ref
->force
) {
1001 struct strbuf quickref
= STRBUF_INIT
;
1003 strbuf_add_unique_abbrev(&quickref
, ¤t
->object
.oid
, DEFAULT_ABBREV
);
1004 strbuf_addstr(&quickref
, "...");
1005 strbuf_add_unique_abbrev(&quickref
, &ref
->new_oid
, DEFAULT_ABBREV
);
1006 r
= s_update_ref("forced-update", ref
, transaction
, 1);
1007 display_ref_update(display_state
, r
? '!' : '+', quickref
.buf
,
1008 r
? _("unable to update local ref") : _("forced update"),
1009 remote_ref
->name
, ref
->name
,
1010 &ref
->old_oid
, &ref
->new_oid
, summary_width
);
1011 strbuf_release(&quickref
);
1014 display_ref_update(display_state
, '!', _("[rejected]"), _("non-fast-forward"),
1015 remote_ref
->name
, ref
->name
,
1016 &ref
->old_oid
, &ref
->new_oid
, summary_width
);
1021 static const struct object_id
*iterate_ref_map(void *cb_data
)
1023 struct ref
**rm
= cb_data
;
1024 struct ref
*ref
= *rm
;
1026 while (ref
&& ref
->status
== REF_STATUS_REJECT_SHALLOW
)
1031 return &ref
->old_oid
;
1039 static int open_fetch_head(struct fetch_head
*fetch_head
)
1041 const char *filename
= git_path_fetch_head(the_repository
);
1043 if (write_fetch_head
) {
1044 fetch_head
->fp
= fopen(filename
, "a");
1045 if (!fetch_head
->fp
)
1046 return error_errno(_("cannot open '%s'"), filename
);
1047 strbuf_init(&fetch_head
->buf
, 0);
1049 fetch_head
->fp
= NULL
;
1055 static void append_fetch_head(struct fetch_head
*fetch_head
,
1056 const struct object_id
*old_oid
,
1057 enum fetch_head_status fetch_head_status
,
1059 const char *url
, size_t url_len
)
1061 char old_oid_hex
[GIT_MAX_HEXSZ
+ 1];
1062 const char *merge_status_marker
;
1065 if (!fetch_head
->fp
)
1068 switch (fetch_head_status
) {
1069 case FETCH_HEAD_NOT_FOR_MERGE
:
1070 merge_status_marker
= "not-for-merge";
1072 case FETCH_HEAD_MERGE
:
1073 merge_status_marker
= "";
1076 /* do not write anything to FETCH_HEAD */
1080 strbuf_addf(&fetch_head
->buf
, "%s\t%s\t%s",
1081 oid_to_hex_r(old_oid_hex
, old_oid
), merge_status_marker
, note
);
1082 for (i
= 0; i
< url_len
; ++i
)
1084 strbuf_addstr(&fetch_head
->buf
, "\\n");
1086 strbuf_addch(&fetch_head
->buf
, url
[i
]);
1087 strbuf_addch(&fetch_head
->buf
, '\n');
1090 * When using an atomic fetch, we do not want to update FETCH_HEAD if
1091 * any of the reference updates fails. We thus have to write all
1092 * updates to a buffer first and only commit it as soon as all
1093 * references have been successfully updated.
1095 if (!atomic_fetch
) {
1096 strbuf_write(&fetch_head
->buf
, fetch_head
->fp
);
1097 strbuf_reset(&fetch_head
->buf
);
1101 static void commit_fetch_head(struct fetch_head
*fetch_head
)
1103 if (!fetch_head
->fp
|| !atomic_fetch
)
1105 strbuf_write(&fetch_head
->buf
, fetch_head
->fp
);
1108 static void close_fetch_head(struct fetch_head
*fetch_head
)
1110 if (!fetch_head
->fp
)
1113 fclose(fetch_head
->fp
);
1114 strbuf_release(&fetch_head
->buf
);
1117 static const char warn_show_forced_updates
[] =
1118 N_("fetch normally indicates which branches had a forced update,\n"
1119 "but that check has been disabled; to re-enable, use '--show-forced-updates'\n"
1120 "flag or run 'git config fetch.showForcedUpdates true'");
1121 static const char warn_time_show_forced_updates
[] =
1122 N_("it took %.2f seconds to check forced updates; you can use\n"
1123 "'--no-show-forced-updates' or run 'git config fetch.showForcedUpdates false'\n"
1124 "to avoid this check\n");
1126 static int store_updated_refs(struct display_state
*display_state
,
1127 const char *remote_name
,
1128 int connectivity_checked
,
1129 struct ref_transaction
*transaction
, struct ref
*ref_map
,
1130 struct fetch_head
*fetch_head
)
1133 struct strbuf note
= STRBUF_INIT
;
1134 const char *what
, *kind
;
1137 int summary_width
= 0;
1140 summary_width
= transport_summary_width(ref_map
);
1142 if (!connectivity_checked
) {
1143 struct check_connected_options opt
= CHECK_CONNECTED_INIT
;
1145 opt
.exclude_hidden_refs_section
= "fetch";
1147 if (check_connected(iterate_ref_map
, &rm
, &opt
)) {
1148 rc
= error(_("%s did not send all necessary objects\n"),
1149 display_state
->url
);
1155 * We do a pass for each fetch_head_status type in their enum order, so
1156 * merged entries are written before not-for-merge. That lets readers
1157 * use FETCH_HEAD as a refname to refer to the ref to be merged.
1159 for (want_status
= FETCH_HEAD_MERGE
;
1160 want_status
<= FETCH_HEAD_IGNORE
;
1162 for (rm
= ref_map
; rm
; rm
= rm
->next
) {
1163 struct ref
*ref
= NULL
;
1165 if (rm
->status
== REF_STATUS_REJECT_SHALLOW
) {
1166 if (want_status
== FETCH_HEAD_MERGE
)
1167 warning(_("rejected %s because shallow roots are not allowed to be updated"),
1168 rm
->peer_ref
? rm
->peer_ref
->name
: rm
->name
);
1173 * When writing FETCH_HEAD we need to determine whether
1174 * we already have the commit or not. If not, then the
1175 * reference is not for merge and needs to be written
1176 * to the reflog after other commits which we already
1177 * have. We're not interested in this property though
1178 * in case FETCH_HEAD is not to be updated, so we can
1179 * skip the classification in that case.
1181 if (fetch_head
->fp
) {
1182 struct commit
*commit
= NULL
;
1185 * References in "refs/tags/" are often going to point
1186 * to annotated tags, which are not part of the
1187 * commit-graph. We thus only try to look up refs in
1188 * the graph which are not in that namespace to not
1189 * regress performance in repositories with many
1192 if (!starts_with(rm
->name
, "refs/tags/"))
1193 commit
= lookup_commit_in_graph(the_repository
, &rm
->old_oid
);
1195 commit
= lookup_commit_reference_gently(the_repository
,
1199 rm
->fetch_head_status
= FETCH_HEAD_NOT_FOR_MERGE
;
1203 if (rm
->fetch_head_status
!= want_status
)
1207 ref
= alloc_ref(rm
->peer_ref
->name
);
1208 oidcpy(&ref
->old_oid
, &rm
->peer_ref
->old_oid
);
1209 oidcpy(&ref
->new_oid
, &rm
->old_oid
);
1210 ref
->force
= rm
->peer_ref
->force
;
1213 if (recurse_submodules
!= RECURSE_SUBMODULES_OFF
&&
1214 (!rm
->peer_ref
|| !oideq(&ref
->old_oid
, &ref
->new_oid
))) {
1215 check_for_new_submodule_commits(&rm
->old_oid
);
1218 if (!strcmp(rm
->name
, "HEAD")) {
1221 } else if (skip_prefix(rm
->name
, "refs/heads/", &what
)) {
1223 } else if (skip_prefix(rm
->name
, "refs/tags/", &what
)) {
1225 } else if (skip_prefix(rm
->name
, "refs/remotes/", &what
)) {
1226 kind
= "remote-tracking branch";
1232 strbuf_reset(¬e
);
1235 strbuf_addf(¬e
, "%s ", kind
);
1236 strbuf_addf(¬e
, "'%s' of ", what
);
1239 append_fetch_head(fetch_head
, &rm
->old_oid
,
1240 rm
->fetch_head_status
,
1241 note
.buf
, display_state
->url
,
1242 display_state
->url_len
);
1245 rc
|= update_local_ref(ref
, transaction
, display_state
,
1248 } else if (write_fetch_head
|| dry_run
) {
1250 * Display fetches written to FETCH_HEAD (or
1251 * would be written to FETCH_HEAD, if --dry-run
1254 display_ref_update(display_state
, '*',
1255 *kind
? kind
: "branch", NULL
,
1258 &rm
->new_oid
, &rm
->old_oid
,
1264 if (rc
& STORE_REF_ERROR_DF_CONFLICT
)
1265 error(_("some local refs could not be updated; try running\n"
1266 " 'git remote prune %s' to remove any old, conflicting "
1267 "branches"), remote_name
);
1269 if (advice_enabled(ADVICE_FETCH_SHOW_FORCED_UPDATES
)) {
1270 if (!fetch_show_forced_updates
) {
1271 warning(_(warn_show_forced_updates
));
1272 } else if (forced_updates_ms
> FORCED_UPDATES_DELAY_WARNING_IN_MS
) {
1273 warning(_(warn_time_show_forced_updates
),
1274 forced_updates_ms
/ 1000.0);
1279 strbuf_release(¬e
);
1284 * We would want to bypass the object transfer altogether if
1285 * everything we are going to fetch already exists and is connected
1288 static int check_exist_and_connected(struct ref
*ref_map
)
1290 struct ref
*rm
= ref_map
;
1291 struct check_connected_options opt
= CHECK_CONNECTED_INIT
;
1295 * If we are deepening a shallow clone we already have these
1296 * objects reachable. Running rev-list here will return with
1297 * a good (0) exit status and we'll bypass the fetch that we
1298 * really need to perform. Claiming failure now will ensure
1299 * we perform the network exchange to deepen our history.
1305 * Similarly, if we need to refetch, we always want to perform a full
1306 * fetch ignoring existing objects.
1313 * check_connected() allows objects to merely be promised, but
1314 * we need all direct targets to exist.
1316 for (r
= rm
; r
; r
= r
->next
) {
1317 if (!repo_has_object_file_with_flags(the_repository
, &r
->old_oid
,
1318 OBJECT_INFO_SKIP_FETCH_OBJECT
))
1323 opt
.exclude_hidden_refs_section
= "fetch";
1324 return check_connected(iterate_ref_map
, &rm
, &opt
);
1327 static int fetch_and_consume_refs(struct display_state
*display_state
,
1328 struct transport
*transport
,
1329 struct ref_transaction
*transaction
,
1330 struct ref
*ref_map
,
1331 struct fetch_head
*fetch_head
)
1333 int connectivity_checked
= 1;
1337 * We don't need to perform a fetch in case we can already satisfy all
1340 ret
= check_exist_and_connected(ref_map
);
1342 trace2_region_enter("fetch", "fetch_refs", the_repository
);
1343 ret
= transport_fetch_refs(transport
, ref_map
);
1344 trace2_region_leave("fetch", "fetch_refs", the_repository
);
1347 connectivity_checked
= transport
->smart_options
?
1348 transport
->smart_options
->connectivity_checked
: 0;
1351 trace2_region_enter("fetch", "consume_refs", the_repository
);
1352 ret
= store_updated_refs(display_state
, transport
->remote
->name
,
1353 connectivity_checked
, transaction
, ref_map
,
1355 trace2_region_leave("fetch", "consume_refs", the_repository
);
1358 transport_unlock_pack(transport
, 0);
1362 static int prune_refs(struct display_state
*display_state
,
1364 struct ref_transaction
*transaction
,
1365 struct ref
*ref_map
)
1368 struct ref
*ref
, *stale_refs
= get_stale_heads(rs
, ref_map
);
1369 struct strbuf err
= STRBUF_INIT
;
1370 const char *dangling_msg
= dry_run
1371 ? _(" (%s will become dangling)")
1372 : _(" (%s has become dangling)");
1376 for (ref
= stale_refs
; ref
; ref
= ref
->next
) {
1377 result
= ref_transaction_delete(transaction
, ref
->name
, NULL
, 0,
1378 "fetch: prune", &err
);
1383 struct string_list refnames
= STRING_LIST_INIT_NODUP
;
1385 for (ref
= stale_refs
; ref
; ref
= ref
->next
)
1386 string_list_append(&refnames
, ref
->name
);
1388 result
= delete_refs("fetch: prune", &refnames
, 0);
1389 string_list_clear(&refnames
, 0);
1393 if (verbosity
>= 0) {
1394 int summary_width
= transport_summary_width(stale_refs
);
1396 for (ref
= stale_refs
; ref
; ref
= ref
->next
) {
1397 display_ref_update(display_state
, '-', _("[deleted]"), NULL
,
1398 _("(none)"), ref
->name
,
1399 &ref
->new_oid
, &ref
->old_oid
,
1401 warn_dangling_symref(stderr
, dangling_msg
, ref
->name
);
1406 strbuf_release(&err
);
1407 free_refs(stale_refs
);
1411 static void check_not_current_branch(struct ref
*ref_map
)
1414 for (; ref_map
; ref_map
= ref_map
->next
)
1415 if (ref_map
->peer_ref
&&
1416 starts_with(ref_map
->peer_ref
->name
, "refs/heads/") &&
1417 (path
= branch_checked_out(ref_map
->peer_ref
->name
)))
1418 die(_("refusing to fetch into branch '%s' "
1419 "checked out at '%s'"),
1420 ref_map
->peer_ref
->name
, path
);
1423 static int truncate_fetch_head(void)
1425 const char *filename
= git_path_fetch_head(the_repository
);
1426 FILE *fp
= fopen_for_writing(filename
);
1429 return error_errno(_("cannot open '%s'"), filename
);
1434 static void set_option(struct transport
*transport
, const char *name
, const char *value
)
1436 int r
= transport_set_option(transport
, name
, value
);
1438 die(_("option \"%s\" value \"%s\" is not valid for %s"),
1439 name
, value
, transport
->url
);
1441 warning(_("option \"%s\" is ignored for %s\n"),
1442 name
, transport
->url
);
1446 static int add_oid(const char *refname UNUSED
,
1447 const struct object_id
*oid
,
1448 int flags UNUSED
, void *cb_data
)
1450 struct oid_array
*oids
= cb_data
;
1452 oid_array_append(oids
, oid
);
1456 static void add_negotiation_tips(struct git_transport_options
*smart_options
)
1458 struct oid_array
*oids
= xcalloc(1, sizeof(*oids
));
1461 for (i
= 0; i
< negotiation_tip
.nr
; i
++) {
1462 const char *s
= negotiation_tip
.items
[i
].string
;
1464 if (!has_glob_specials(s
)) {
1465 struct object_id oid
;
1466 if (repo_get_oid(the_repository
, s
, &oid
))
1467 die(_("%s is not a valid object"), s
);
1468 if (!has_object(the_repository
, &oid
, 0))
1469 die(_("the object %s does not exist"), s
);
1470 oid_array_append(oids
, &oid
);
1474 for_each_glob_ref(add_oid
, s
, oids
);
1475 if (old_nr
== oids
->nr
)
1476 warning("ignoring --negotiation-tip=%s because it does not match any refs",
1479 smart_options
->negotiation_tips
= oids
;
1482 static struct transport
*prepare_transport(struct remote
*remote
, int deepen
)
1484 struct transport
*transport
;
1486 transport
= transport_get(remote
, NULL
);
1487 transport_set_verbosity(transport
, verbosity
, progress
);
1488 transport
->family
= family
;
1490 set_option(transport
, TRANS_OPT_UPLOADPACK
, upload_pack
);
1492 set_option(transport
, TRANS_OPT_KEEP
, "yes");
1494 set_option(transport
, TRANS_OPT_DEPTH
, depth
);
1495 if (deepen
&& deepen_since
)
1496 set_option(transport
, TRANS_OPT_DEEPEN_SINCE
, deepen_since
);
1497 if (deepen
&& deepen_not
.nr
)
1498 set_option(transport
, TRANS_OPT_DEEPEN_NOT
,
1499 (const char *)&deepen_not
);
1500 if (deepen_relative
)
1501 set_option(transport
, TRANS_OPT_DEEPEN_RELATIVE
, "yes");
1503 set_option(transport
, TRANS_OPT_UPDATE_SHALLOW
, "yes");
1505 set_option(transport
, TRANS_OPT_REFETCH
, "yes");
1506 if (filter_options
.choice
) {
1508 expand_list_objects_filter_spec(&filter_options
);
1509 set_option(transport
, TRANS_OPT_LIST_OBJECTS_FILTER
, spec
);
1510 set_option(transport
, TRANS_OPT_FROM_PROMISOR
, "1");
1512 if (negotiation_tip
.nr
) {
1513 if (transport
->smart_options
)
1514 add_negotiation_tips(transport
->smart_options
);
1516 warning("ignoring --negotiation-tip because the protocol does not support it");
1521 static int backfill_tags(struct display_state
*display_state
,
1522 struct transport
*transport
,
1523 struct ref_transaction
*transaction
,
1524 struct ref
*ref_map
,
1525 struct fetch_head
*fetch_head
)
1527 int retcode
, cannot_reuse
;
1530 * Once we have set TRANS_OPT_DEEPEN_SINCE, we can't unset it
1531 * when remote helper is used (setting it to an empty string
1532 * is not unsetting). We could extend the remote helper
1533 * protocol for that, but for now, just force a new connection
1534 * without deepen-since. Similar story for deepen-not.
1536 cannot_reuse
= transport
->cannot_reuse
||
1537 deepen_since
|| deepen_not
.nr
;
1539 gsecondary
= prepare_transport(transport
->remote
, 0);
1540 transport
= gsecondary
;
1543 transport_set_option(transport
, TRANS_OPT_FOLLOWTAGS
, NULL
);
1544 transport_set_option(transport
, TRANS_OPT_DEPTH
, "0");
1545 transport_set_option(transport
, TRANS_OPT_DEEPEN_RELATIVE
, NULL
);
1546 retcode
= fetch_and_consume_refs(display_state
, transport
, transaction
, ref_map
, fetch_head
);
1549 transport_disconnect(gsecondary
);
1556 static int do_fetch(struct transport
*transport
,
1558 enum display_format display_format
)
1560 struct ref_transaction
*transaction
= NULL
;
1561 struct ref
*ref_map
= NULL
;
1562 struct display_state display_state
= { 0 };
1563 int autotags
= (transport
->remote
->fetch_tags
== 1);
1565 const struct ref
*remote_refs
;
1566 struct transport_ls_refs_options transport_ls_refs_options
=
1567 TRANSPORT_LS_REFS_OPTIONS_INIT
;
1568 int must_list_refs
= 1;
1569 struct fetch_head fetch_head
= { 0 };
1570 struct strbuf err
= STRBUF_INIT
;
1572 if (tags
== TAGS_DEFAULT
) {
1573 if (transport
->remote
->fetch_tags
== 2)
1575 if (transport
->remote
->fetch_tags
== -1)
1579 /* if not appending, truncate FETCH_HEAD */
1580 if (!append
&& write_fetch_head
) {
1581 retcode
= truncate_fetch_head();
1589 refspec_ref_prefixes(rs
, &transport_ls_refs_options
.ref_prefixes
);
1592 * We can avoid listing refs if all of them are exact
1596 for (i
= 0; i
< rs
->nr
; i
++) {
1597 if (!rs
->items
[i
].exact_sha1
) {
1603 struct branch
*branch
= branch_get(NULL
);
1605 if (transport
->remote
->fetch
.nr
)
1606 refspec_ref_prefixes(&transport
->remote
->fetch
,
1607 &transport_ls_refs_options
.ref_prefixes
);
1608 if (branch_has_merge_config(branch
) &&
1609 !strcmp(branch
->remote_name
, transport
->remote
->name
)) {
1611 for (i
= 0; i
< branch
->merge_nr
; i
++) {
1612 strvec_push(&transport_ls_refs_options
.ref_prefixes
,
1613 branch
->merge
[i
]->src
);
1618 if (tags
== TAGS_SET
|| tags
== TAGS_DEFAULT
) {
1620 if (transport_ls_refs_options
.ref_prefixes
.nr
)
1621 strvec_push(&transport_ls_refs_options
.ref_prefixes
,
1625 if (must_list_refs
) {
1626 trace2_region_enter("fetch", "remote_refs", the_repository
);
1627 remote_refs
= transport_get_remote_refs(transport
,
1628 &transport_ls_refs_options
);
1629 trace2_region_leave("fetch", "remote_refs", the_repository
);
1633 transport_ls_refs_options_release(&transport_ls_refs_options
);
1635 ref_map
= get_ref_map(transport
->remote
, remote_refs
, rs
,
1637 if (!update_head_ok
)
1638 check_not_current_branch(ref_map
);
1640 retcode
= open_fetch_head(&fetch_head
);
1644 display_state_init(&display_state
, ref_map
, transport
->url
, display_format
);
1647 transaction
= ref_transaction_begin(&err
);
1649 retcode
= error("%s", err
.buf
);
1654 if (tags
== TAGS_DEFAULT
&& autotags
)
1655 transport_set_option(transport
, TRANS_OPT_FOLLOWTAGS
, "1");
1658 * We only prune based on refspecs specified
1659 * explicitly (via command line or configuration); we
1660 * don't care whether --tags was specified.
1663 retcode
= prune_refs(&display_state
, rs
, transaction
, ref_map
);
1665 retcode
= prune_refs(&display_state
, &transport
->remote
->fetch
,
1666 transaction
, ref_map
);
1672 if (fetch_and_consume_refs(&display_state
, transport
, transaction
, ref_map
, &fetch_head
)) {
1678 * If neither --no-tags nor --tags was specified, do automated tag
1681 if (tags
== TAGS_DEFAULT
&& autotags
) {
1682 struct ref
*tags_ref_map
= NULL
, **tail
= &tags_ref_map
;
1684 find_non_local_tags(remote_refs
, transaction
, &tags_ref_map
, &tail
);
1687 * If backfilling of tags fails then we want to tell
1688 * the user so, but we have to continue regardless to
1689 * populate upstream information of the references we
1690 * have already fetched above. The exception though is
1691 * when `--atomic` is passed: in that case we'll abort
1692 * the transaction and don't commit anything.
1694 if (backfill_tags(&display_state
, transport
, transaction
, tags_ref_map
,
1699 free_refs(tags_ref_map
);
1706 retcode
= ref_transaction_commit(transaction
, &err
);
1708 error("%s", err
.buf
);
1709 ref_transaction_free(transaction
);
1715 commit_fetch_head(&fetch_head
);
1718 struct branch
*branch
= branch_get("HEAD");
1720 struct ref
*source_ref
= NULL
;
1723 * We're setting the upstream configuration for the
1724 * current branch. The relevant upstream is the
1725 * fetched branch that is meant to be merged with the
1726 * current one, i.e. the one fetched to FETCH_HEAD.
1728 * When there are several such branches, consider the
1729 * request ambiguous and err on the safe side by doing
1730 * nothing and just emit a warning.
1732 for (rm
= ref_map
; rm
; rm
= rm
->next
) {
1733 if (!rm
->peer_ref
) {
1735 warning(_("multiple branches detected, incompatible with --set-upstream"));
1744 const char *shortname
= source_ref
->name
;
1745 skip_prefix(shortname
, "refs/heads/", &shortname
);
1747 warning(_("could not set upstream of HEAD to '%s' from '%s' when "
1748 "it does not point to any branch."),
1749 shortname
, transport
->remote
->name
);
1753 if (!strcmp(source_ref
->name
, "HEAD") ||
1754 starts_with(source_ref
->name
, "refs/heads/"))
1755 install_branch_config(0,
1757 transport
->remote
->name
,
1759 else if (starts_with(source_ref
->name
, "refs/remotes/"))
1760 warning(_("not setting upstream for a remote remote-tracking branch"));
1761 else if (starts_with(source_ref
->name
, "refs/tags/"))
1762 warning(_("not setting upstream for a remote tag"));
1764 warning(_("unknown branch type"));
1766 warning(_("no source branch found;\n"
1767 "you need to specify exactly one branch with the --set-upstream option"));
1772 if (retcode
&& transaction
) {
1773 ref_transaction_abort(transaction
, &err
);
1774 error("%s", err
.buf
);
1777 display_state_release(&display_state
);
1778 close_fetch_head(&fetch_head
);
1779 strbuf_release(&err
);
1784 static int get_one_remote_for_fetch(struct remote
*remote
, void *priv
)
1786 struct string_list
*list
= priv
;
1787 if (!remote
->skip_default_update
)
1788 string_list_append(list
, remote
->name
);
1792 struct remote_group_data
{
1794 struct string_list
*list
;
1797 static int get_remote_group(const char *key
, const char *value
, void *priv
)
1799 struct remote_group_data
*g
= priv
;
1801 if (skip_prefix(key
, "remotes.", &key
) && !strcmp(key
, g
->name
)) {
1802 /* split list by white space */
1804 size_t wordlen
= strcspn(value
, " \t\n");
1807 string_list_append_nodup(g
->list
,
1808 xstrndup(value
, wordlen
));
1809 value
+= wordlen
+ (value
[wordlen
] != '\0');
1816 static int add_remote_or_group(const char *name
, struct string_list
*list
)
1818 int prev_nr
= list
->nr
;
1819 struct remote_group_data g
;
1820 g
.name
= name
; g
.list
= list
;
1822 git_config(get_remote_group
, &g
);
1823 if (list
->nr
== prev_nr
) {
1824 struct remote
*remote
= remote_get(name
);
1825 if (!remote_is_configured(remote
, 0))
1827 string_list_append(list
, remote
->name
);
1832 static void add_options_to_argv(struct strvec
*argv
,
1833 enum display_format format
)
1836 strvec_push(argv
, "--dry-run");
1838 strvec_push(argv
, prune
? "--prune" : "--no-prune");
1839 if (prune_tags
!= -1)
1840 strvec_push(argv
, prune_tags
? "--prune-tags" : "--no-prune-tags");
1842 strvec_push(argv
, "--update-head-ok");
1844 strvec_push(argv
, "--force");
1846 strvec_push(argv
, "--keep");
1847 if (recurse_submodules
== RECURSE_SUBMODULES_ON
)
1848 strvec_push(argv
, "--recurse-submodules");
1849 else if (recurse_submodules
== RECURSE_SUBMODULES_OFF
)
1850 strvec_push(argv
, "--no-recurse-submodules");
1851 else if (recurse_submodules
== RECURSE_SUBMODULES_ON_DEMAND
)
1852 strvec_push(argv
, "--recurse-submodules=on-demand");
1853 if (tags
== TAGS_SET
)
1854 strvec_push(argv
, "--tags");
1855 else if (tags
== TAGS_UNSET
)
1856 strvec_push(argv
, "--no-tags");
1858 strvec_push(argv
, "-v");
1860 strvec_push(argv
, "-v");
1861 else if (verbosity
< 0)
1862 strvec_push(argv
, "-q");
1863 if (family
== TRANSPORT_FAMILY_IPV4
)
1864 strvec_push(argv
, "--ipv4");
1865 else if (family
== TRANSPORT_FAMILY_IPV6
)
1866 strvec_push(argv
, "--ipv6");
1867 if (!write_fetch_head
)
1868 strvec_push(argv
, "--no-write-fetch-head");
1869 if (format
== DISPLAY_FORMAT_PORCELAIN
)
1870 strvec_pushf(argv
, "--porcelain");
1873 /* Fetch multiple remotes in parallel */
1875 struct parallel_fetch_state
{
1877 struct string_list
*remotes
;
1879 enum display_format format
;
1882 static int fetch_next_remote(struct child_process
*cp
,
1883 struct strbuf
*out UNUSED
,
1884 void *cb
, void **task_cb
)
1886 struct parallel_fetch_state
*state
= cb
;
1889 if (state
->next
< 0 || state
->next
>= state
->remotes
->nr
)
1892 remote
= state
->remotes
->items
[state
->next
++].string
;
1895 strvec_pushv(&cp
->args
, state
->argv
);
1896 strvec_push(&cp
->args
, remote
);
1899 if (verbosity
>= 0 && state
->format
!= DISPLAY_FORMAT_PORCELAIN
)
1900 printf(_("Fetching %s\n"), remote
);
1905 static int fetch_failed_to_start(struct strbuf
*out UNUSED
,
1906 void *cb
, void *task_cb
)
1908 struct parallel_fetch_state
*state
= cb
;
1909 const char *remote
= task_cb
;
1911 state
->result
= error(_("could not fetch %s"), remote
);
1916 static int fetch_finished(int result
, struct strbuf
*out
,
1917 void *cb
, void *task_cb
)
1919 struct parallel_fetch_state
*state
= cb
;
1920 const char *remote
= task_cb
;
1923 strbuf_addf(out
, _("could not fetch '%s' (exit code: %d)\n"),
1931 static int fetch_multiple(struct string_list
*list
, int max_children
,
1932 enum display_format format
)
1935 struct strvec argv
= STRVEC_INIT
;
1937 if (!append
&& write_fetch_head
) {
1938 int errcode
= truncate_fetch_head();
1944 * Cancel out the fetch.bundleURI config when running subprocesses,
1945 * to avoid fetching from the same bundle list multiple times.
1947 strvec_pushl(&argv
, "-c", "fetch.bundleURI=",
1948 "fetch", "--append", "--no-auto-gc",
1949 "--no-write-commit-graph", NULL
);
1950 add_options_to_argv(&argv
, format
);
1952 if (max_children
!= 1 && list
->nr
!= 1) {
1953 struct parallel_fetch_state state
= { argv
.v
, list
, 0, 0, format
};
1954 const struct run_process_parallel_opts opts
= {
1955 .tr2_category
= "fetch",
1956 .tr2_label
= "parallel/fetch",
1958 .processes
= max_children
,
1960 .get_next_task
= &fetch_next_remote
,
1961 .start_failure
= &fetch_failed_to_start
,
1962 .task_finished
= &fetch_finished
,
1966 strvec_push(&argv
, "--end-of-options");
1968 run_processes_parallel(&opts
);
1969 result
= state
.result
;
1971 for (i
= 0; i
< list
->nr
; i
++) {
1972 const char *name
= list
->items
[i
].string
;
1973 struct child_process cmd
= CHILD_PROCESS_INIT
;
1975 strvec_pushv(&cmd
.args
, argv
.v
);
1976 strvec_push(&cmd
.args
, name
);
1977 if (verbosity
>= 0 && format
!= DISPLAY_FORMAT_PORCELAIN
)
1978 printf(_("Fetching %s\n"), name
);
1980 if (run_command(&cmd
)) {
1981 error(_("could not fetch %s"), name
);
1986 strvec_clear(&argv
);
1991 * Fetching from the promisor remote should use the given filter-spec
1992 * or inherit the default filter-spec from the config.
1994 static inline void fetch_one_setup_partial(struct remote
*remote
)
1997 * Explicit --no-filter argument overrides everything, regardless
1998 * of any prior partial clones and fetches.
2000 if (filter_options
.no_filter
)
2004 * If no prior partial clone/fetch and the current fetch DID NOT
2005 * request a partial-fetch, do a normal fetch.
2007 if (!repo_has_promisor_remote(the_repository
) && !filter_options
.choice
)
2011 * If this is a partial-fetch request, we enable partial on
2012 * this repo if not already enabled and remember the given
2013 * filter-spec as the default for subsequent fetches to this
2014 * remote if there is currently no default filter-spec.
2016 if (filter_options
.choice
) {
2017 partial_clone_register(remote
->name
, &filter_options
);
2022 * Do a partial-fetch from the promisor remote using either the
2023 * explicitly given filter-spec or inherit the filter-spec from
2026 if (!filter_options
.choice
)
2027 partial_clone_get_default_filter_spec(&filter_options
, remote
->name
);
2031 static int fetch_one(struct remote
*remote
, int argc
, const char **argv
,
2032 int prune_tags_ok
, int use_stdin_refspecs
,
2033 enum display_format display_format
)
2035 struct refspec rs
= REFSPEC_INIT_FETCH
;
2038 int maybe_prune_tags
;
2039 int remote_via_config
= remote_is_configured(remote
, 0);
2042 die(_("no remote repository specified; please specify either a URL or a\n"
2043 "remote name from which new revisions should be fetched"));
2045 gtransport
= prepare_transport(remote
, 1);
2048 /* no command line request */
2049 if (0 <= remote
->prune
)
2050 prune
= remote
->prune
;
2051 else if (0 <= fetch_prune_config
)
2052 prune
= fetch_prune_config
;
2054 prune
= PRUNE_BY_DEFAULT
;
2057 if (prune_tags
< 0) {
2058 /* no command line request */
2059 if (0 <= remote
->prune_tags
)
2060 prune_tags
= remote
->prune_tags
;
2061 else if (0 <= fetch_prune_tags_config
)
2062 prune_tags
= fetch_prune_tags_config
;
2064 prune_tags
= PRUNE_TAGS_BY_DEFAULT
;
2067 maybe_prune_tags
= prune_tags_ok
&& prune_tags
;
2068 if (maybe_prune_tags
&& remote_via_config
)
2069 refspec_append(&remote
->fetch
, TAG_REFSPEC
);
2071 if (maybe_prune_tags
&& (argc
|| !remote_via_config
))
2072 refspec_append(&rs
, TAG_REFSPEC
);
2074 for (i
= 0; i
< argc
; i
++) {
2075 if (!strcmp(argv
[i
], "tag")) {
2078 die(_("you need to specify a tag name"));
2080 refspec_appendf(&rs
, "refs/tags/%s:refs/tags/%s",
2083 refspec_append(&rs
, argv
[i
]);
2087 if (use_stdin_refspecs
) {
2088 struct strbuf line
= STRBUF_INIT
;
2089 while (strbuf_getline_lf(&line
, stdin
) != EOF
)
2090 refspec_append(&rs
, line
.buf
);
2091 strbuf_release(&line
);
2094 if (server_options
.nr
)
2095 gtransport
->server_options
= &server_options
;
2097 sigchain_push_common(unlock_pack_on_signal
);
2098 atexit(unlock_pack_atexit
);
2099 sigchain_push(SIGPIPE
, SIG_IGN
);
2100 exit_code
= do_fetch(gtransport
, &rs
, display_format
);
2101 sigchain_pop(SIGPIPE
);
2103 transport_disconnect(gtransport
);
2108 int cmd_fetch(int argc
, const char **argv
, const char *prefix
)
2110 struct fetch_config config
= {
2111 .display_format
= DISPLAY_FORMAT_FULL
,
2113 const char *submodule_prefix
= "";
2114 const char *bundle_uri
;
2115 struct string_list list
= STRING_LIST_INIT_DUP
;
2116 struct remote
*remote
= NULL
;
2117 int all
= 0, multiple
= 0;
2119 int prune_tags_ok
= 1;
2120 int enable_auto_gc
= 1;
2123 int recurse_submodules_cli
= RECURSE_SUBMODULES_DEFAULT
;
2124 int recurse_submodules_default
= RECURSE_SUBMODULES_ON_DEMAND
;
2125 int fetch_write_commit_graph
= -1;
2126 int stdin_refspecs
= 0;
2127 int negotiate_only
= 0;
2131 struct option builtin_fetch_options
[] = {
2132 OPT__VERBOSITY(&verbosity
),
2133 OPT_BOOL(0, "all", &all
,
2134 N_("fetch from all remotes")),
2135 OPT_BOOL(0, "set-upstream", &set_upstream
,
2136 N_("set upstream for git pull/fetch")),
2137 OPT_BOOL('a', "append", &append
,
2138 N_("append to .git/FETCH_HEAD instead of overwriting")),
2139 OPT_BOOL(0, "atomic", &atomic_fetch
,
2140 N_("use atomic transaction to update references")),
2141 OPT_STRING(0, "upload-pack", &upload_pack
, N_("path"),
2142 N_("path to upload pack on remote end")),
2143 OPT__FORCE(&force
, N_("force overwrite of local reference"), 0),
2144 OPT_BOOL('m', "multiple", &multiple
,
2145 N_("fetch from multiple remotes")),
2146 OPT_SET_INT('t', "tags", &tags
,
2147 N_("fetch all tags and associated objects"), TAGS_SET
),
2148 OPT_SET_INT('n', NULL
, &tags
,
2149 N_("do not fetch all tags (--no-tags)"), TAGS_UNSET
),
2150 OPT_INTEGER('j', "jobs", &max_jobs
,
2151 N_("number of submodules fetched in parallel")),
2152 OPT_BOOL(0, "prefetch", &prefetch
,
2153 N_("modify the refspec to place all refs within refs/prefetch/")),
2154 OPT_BOOL('p', "prune", &prune
,
2155 N_("prune remote-tracking branches no longer on remote")),
2156 OPT_BOOL('P', "prune-tags", &prune_tags
,
2157 N_("prune local tags no longer on remote and clobber changed tags")),
2158 OPT_CALLBACK_F(0, "recurse-submodules", &recurse_submodules_cli
, N_("on-demand"),
2159 N_("control recursive fetching of submodules"),
2160 PARSE_OPT_OPTARG
, option_fetch_parse_recurse_submodules
),
2161 OPT_BOOL(0, "dry-run", &dry_run
,
2163 OPT_BOOL(0, "porcelain", &porcelain
, N_("machine-readable output")),
2164 OPT_BOOL(0, "write-fetch-head", &write_fetch_head
,
2165 N_("write fetched references to the FETCH_HEAD file")),
2166 OPT_BOOL('k', "keep", &keep
, N_("keep downloaded pack")),
2167 OPT_BOOL('u', "update-head-ok", &update_head_ok
,
2168 N_("allow updating of HEAD ref")),
2169 OPT_BOOL(0, "progress", &progress
, N_("force progress reporting")),
2170 OPT_STRING(0, "depth", &depth
, N_("depth"),
2171 N_("deepen history of shallow clone")),
2172 OPT_STRING(0, "shallow-since", &deepen_since
, N_("time"),
2173 N_("deepen history of shallow repository based on time")),
2174 OPT_STRING_LIST(0, "shallow-exclude", &deepen_not
, N_("revision"),
2175 N_("deepen history of shallow clone, excluding rev")),
2176 OPT_INTEGER(0, "deepen", &deepen_relative
,
2177 N_("deepen history of shallow clone")),
2178 OPT_SET_INT_F(0, "unshallow", &unshallow
,
2179 N_("convert to a complete repository"),
2180 1, PARSE_OPT_NONEG
),
2181 OPT_SET_INT_F(0, "refetch", &refetch
,
2182 N_("re-fetch without negotiating common commits"),
2183 1, PARSE_OPT_NONEG
),
2184 { OPTION_STRING
, 0, "submodule-prefix", &submodule_prefix
, N_("dir"),
2185 N_("prepend this to submodule path output"), PARSE_OPT_HIDDEN
},
2186 OPT_CALLBACK_F(0, "recurse-submodules-default",
2187 &recurse_submodules_default
, N_("on-demand"),
2188 N_("default for recursive fetching of submodules "
2189 "(lower priority than config files)"),
2190 PARSE_OPT_HIDDEN
, option_fetch_parse_recurse_submodules
),
2191 OPT_BOOL(0, "update-shallow", &update_shallow
,
2192 N_("accept refs that update .git/shallow")),
2193 OPT_CALLBACK_F(0, "refmap", NULL
, N_("refmap"),
2194 N_("specify fetch refmap"), PARSE_OPT_NONEG
, parse_refmap_arg
),
2195 OPT_STRING_LIST('o', "server-option", &server_options
, N_("server-specific"), N_("option to transmit")),
2196 OPT_SET_INT('4', "ipv4", &family
, N_("use IPv4 addresses only"),
2197 TRANSPORT_FAMILY_IPV4
),
2198 OPT_SET_INT('6', "ipv6", &family
, N_("use IPv6 addresses only"),
2199 TRANSPORT_FAMILY_IPV6
),
2200 OPT_STRING_LIST(0, "negotiation-tip", &negotiation_tip
, N_("revision"),
2201 N_("report that we have only objects reachable from this object")),
2202 OPT_BOOL(0, "negotiate-only", &negotiate_only
,
2203 N_("do not fetch a packfile; instead, print ancestors of negotiation tips")),
2204 OPT_PARSE_LIST_OBJECTS_FILTER(&filter_options
),
2205 OPT_BOOL(0, "auto-maintenance", &enable_auto_gc
,
2206 N_("run 'maintenance --auto' after fetching")),
2207 OPT_BOOL(0, "auto-gc", &enable_auto_gc
,
2208 N_("run 'maintenance --auto' after fetching")),
2209 OPT_BOOL(0, "show-forced-updates", &fetch_show_forced_updates
,
2210 N_("check for forced-updates on all updated branches")),
2211 OPT_BOOL(0, "write-commit-graph", &fetch_write_commit_graph
,
2212 N_("write the commit-graph after fetching")),
2213 OPT_BOOL(0, "stdin", &stdin_refspecs
,
2214 N_("accept refspecs from stdin")),
2218 packet_trace_identity("fetch");
2220 /* Record the command line for the reflog */
2221 strbuf_addstr(&default_rla
, "fetch");
2222 for (i
= 1; i
< argc
; i
++) {
2223 /* This handles non-URLs gracefully */
2224 char *anon
= transport_anonymize_url(argv
[i
]);
2226 strbuf_addf(&default_rla
, " %s", anon
);
2230 git_config(git_fetch_config
, &config
);
2231 if (the_repository
->gitdir
) {
2232 prepare_repo_settings(the_repository
);
2233 the_repository
->settings
.command_requires_full_index
= 0;
2236 argc
= parse_options(argc
, argv
, prefix
,
2237 builtin_fetch_options
, builtin_fetch_usage
, 0);
2239 if (recurse_submodules_cli
!= RECURSE_SUBMODULES_DEFAULT
)
2240 recurse_submodules
= recurse_submodules_cli
;
2242 if (negotiate_only
) {
2243 switch (recurse_submodules_cli
) {
2244 case RECURSE_SUBMODULES_OFF
:
2245 case RECURSE_SUBMODULES_DEFAULT
:
2247 * --negotiate-only should never recurse into
2248 * submodules. Skip it by setting recurse_submodules to
2249 * RECURSE_SUBMODULES_OFF.
2251 recurse_submodules
= RECURSE_SUBMODULES_OFF
;
2255 die(_("options '%s' and '%s' cannot be used together"),
2256 "--negotiate-only", "--recurse-submodules");
2260 if (recurse_submodules
!= RECURSE_SUBMODULES_OFF
) {
2261 int *sfjc
= submodule_fetch_jobs_config
== -1
2262 ? &submodule_fetch_jobs_config
: NULL
;
2263 int *rs
= recurse_submodules
== RECURSE_SUBMODULES_DEFAULT
2264 ? &recurse_submodules
: NULL
;
2266 fetch_config_from_gitmodules(sfjc
, rs
);
2271 switch (recurse_submodules_cli
) {
2272 case RECURSE_SUBMODULES_OFF
:
2273 case RECURSE_SUBMODULES_DEFAULT
:
2275 * Reference updates in submodules would be ambiguous
2276 * in porcelain mode, so we reject this combination.
2278 recurse_submodules
= RECURSE_SUBMODULES_OFF
;
2282 die(_("options '%s' and '%s' cannot be used together"),
2283 "--porcelain", "--recurse-submodules");
2286 config
.display_format
= DISPLAY_FORMAT_PORCELAIN
;
2289 if (negotiate_only
&& !negotiation_tip
.nr
)
2290 die(_("--negotiate-only needs one or more --negotiation-tip=*"));
2292 if (deepen_relative
) {
2293 if (deepen_relative
< 0)
2294 die(_("negative depth in --deepen is not supported"));
2296 die(_("options '%s' and '%s' cannot be used together"), "--deepen", "--depth");
2297 depth
= xstrfmt("%d", deepen_relative
);
2301 die(_("options '%s' and '%s' cannot be used together"), "--depth", "--unshallow");
2302 else if (!is_repository_shallow(the_repository
))
2303 die(_("--unshallow on a complete repository does not make sense"));
2305 depth
= xstrfmt("%d", INFINITE_DEPTH
);
2308 /* no need to be strict, transport_set_option() will validate it again */
2309 if (depth
&& atoi(depth
) < 1)
2310 die(_("depth %s is not a positive number"), depth
);
2311 if (depth
|| deepen_since
|| deepen_not
.nr
)
2314 /* FETCH_HEAD never gets updated in --dry-run mode */
2316 write_fetch_head
= 0;
2319 max_jobs
= online_cpus();
2321 if (!git_config_get_string_tmp("fetch.bundleuri", &bundle_uri
) &&
2322 fetch_bundle_uri(the_repository
, bundle_uri
, NULL
))
2323 warning(_("failed to fetch bundles from '%s'"), bundle_uri
);
2327 die(_("fetch --all does not take a repository argument"));
2329 die(_("fetch --all does not make sense with refspecs"));
2330 (void) for_each_remote(get_one_remote_for_fetch
, &list
);
2332 /* do not do fetch_multiple() of one */
2334 remote
= remote_get(list
.items
[0].string
);
2335 } else if (argc
== 0) {
2336 /* No arguments -- use default remote */
2337 remote
= remote_get(NULL
);
2338 } else if (multiple
) {
2339 /* All arguments are assumed to be remotes or groups */
2340 for (i
= 0; i
< argc
; i
++)
2341 if (!add_remote_or_group(argv
[i
], &list
))
2342 die(_("no such remote or remote group: %s"),
2345 /* Single remote or group */
2346 (void) add_remote_or_group(argv
[0], &list
);
2348 /* More than one remote */
2350 die(_("fetching a group and specifying refspecs does not make sense"));
2352 /* Zero or one remotes */
2353 remote
= remote_get(argv
[0]);
2354 prune_tags_ok
= (argc
== 1);
2359 string_list_remove_duplicates(&list
, 0);
2361 if (negotiate_only
) {
2362 struct oidset acked_commits
= OIDSET_INIT
;
2363 struct oidset_iter iter
;
2364 const struct object_id
*oid
;
2367 die(_("must supply remote when using --negotiate-only"));
2368 gtransport
= prepare_transport(remote
, 1);
2369 if (gtransport
->smart_options
) {
2370 gtransport
->smart_options
->acked_commits
= &acked_commits
;
2372 warning(_("protocol does not support --negotiate-only, exiting"));
2376 if (server_options
.nr
)
2377 gtransport
->server_options
= &server_options
;
2378 result
= transport_fetch_refs(gtransport
, NULL
);
2380 oidset_iter_init(&acked_commits
, &iter
);
2381 while ((oid
= oidset_iter_next(&iter
)))
2382 printf("%s\n", oid_to_hex(oid
));
2383 oidset_clear(&acked_commits
);
2384 } else if (remote
) {
2385 if (filter_options
.choice
|| repo_has_promisor_remote(the_repository
))
2386 fetch_one_setup_partial(remote
);
2387 result
= fetch_one(remote
, argc
, argv
, prune_tags_ok
, stdin_refspecs
,
2388 config
.display_format
);
2390 int max_children
= max_jobs
;
2392 if (filter_options
.choice
)
2393 die(_("--filter can only be used with the remote "
2394 "configured in extensions.partialclone"));
2397 die(_("--atomic can only be used when fetching "
2398 "from one remote"));
2401 die(_("--stdin can only be used when fetching "
2402 "from one remote"));
2404 if (max_children
< 0)
2405 max_children
= fetch_parallel_config
;
2407 /* TODO should this also die if we have a previous partial-clone? */
2408 result
= fetch_multiple(&list
, max_children
, config
.display_format
);
2412 * This is only needed after fetch_one(), which does not fetch
2413 * submodules by itself.
2415 * When we fetch from multiple remotes, fetch_multiple() has
2416 * already updated submodules to grab commits necessary for
2417 * the fetched history from each remote, so there is no need
2418 * to fetch submodules from here.
2420 if (!result
&& remote
&& (recurse_submodules
!= RECURSE_SUBMODULES_OFF
)) {
2421 struct strvec options
= STRVEC_INIT
;
2422 int max_children
= max_jobs
;
2424 if (max_children
< 0)
2425 max_children
= submodule_fetch_jobs_config
;
2426 if (max_children
< 0)
2427 max_children
= fetch_parallel_config
;
2429 add_options_to_argv(&options
, config
.display_format
);
2430 result
= fetch_submodules(the_repository
,
2434 recurse_submodules_default
,
2437 strvec_clear(&options
);
2441 * Skip irrelevant tasks because we know objects were not
2444 * NEEDSWORK: as a future optimization, we can return early
2445 * whenever objects were not fetched e.g. if we already have all
2451 prepare_repo_settings(the_repository
);
2452 if (fetch_write_commit_graph
> 0 ||
2453 (fetch_write_commit_graph
< 0 &&
2454 the_repository
->settings
.fetch_write_commit_graph
)) {
2455 int commit_graph_flags
= COMMIT_GRAPH_WRITE_SPLIT
;
2458 commit_graph_flags
|= COMMIT_GRAPH_WRITE_PROGRESS
;
2460 write_commit_graph_reachable(the_repository
->objects
->odb
,
2465 if (enable_auto_gc
) {
2468 * Hint auto-maintenance strongly to encourage repacking,
2469 * but respect config settings disabling it.
2472 if (git_config_get_int("gc.autopacklimit", &opt_val
))
2475 git_config_push_parameter("gc.autoPackLimit=1");
2477 if (git_config_get_int("maintenance.incremental-repack.auto", &opt_val
))
2480 git_config_push_parameter("maintenance.incremental-repack.auto=-1");
2482 run_auto_maintenance(verbosity
< 0);
2486 string_list_clear(&list
, 0);