6 #include "repository.h"
10 #include "string-list.h"
12 #include "transport.h"
13 #include "run-command.h"
14 #include "parse-options.h"
16 #include "submodule-config.h"
17 #include "submodule.h"
18 #include "connected.h"
19 #include "argv-array.h"
23 static const char * const builtin_fetch_usage
[] = {
24 N_("git fetch [<options>] [<repository> [<refspec>...]]"),
25 N_("git fetch [<options>] <group>"),
26 N_("git fetch --multiple [<options>] [(<repository> | <group>)...]"),
27 N_("git fetch --all [<options>]"),
37 static int fetch_prune_config
= -1; /* unspecified */
38 static int prune
= -1; /* unspecified */
39 #define PRUNE_BY_DEFAULT 0 /* do we prune by default? */
41 static int all
, append
, dry_run
, force
, keep
, multiple
, update_head_ok
, verbosity
, deepen_relative
;
42 static int progress
= -1;
43 static int tags
= TAGS_DEFAULT
, unshallow
, update_shallow
, deepen
;
44 static int max_children
= 1;
45 static enum transport_family family
;
46 static const char *depth
;
47 static const char *deepen_since
;
48 static const char *upload_pack
;
49 static struct string_list deepen_not
= STRING_LIST_INIT_NODUP
;
50 static struct strbuf default_rla
= STRBUF_INIT
;
51 static struct transport
*gtransport
;
52 static struct transport
*gsecondary
;
53 static const char *submodule_prefix
= "";
54 static int recurse_submodules
= RECURSE_SUBMODULES_DEFAULT
;
55 static int recurse_submodules_default
= RECURSE_SUBMODULES_ON_DEMAND
;
56 static int shown_url
= 0;
57 static int refmap_alloc
, refmap_nr
;
58 static const char **refmap_array
;
60 static int git_fetch_config(const char *k
, const char *v
, void *cb
)
62 if (!strcmp(k
, "fetch.prune")) {
63 fetch_prune_config
= git_config_bool(k
, v
);
67 if (!strcmp(k
, "submodule.recurse")) {
68 int r
= git_config_bool(k
, v
) ?
69 RECURSE_SUBMODULES_ON
: RECURSE_SUBMODULES_OFF
;
70 recurse_submodules
= r
;
73 if (!strcmp(k
, "submodule.fetchjobs")) {
74 max_children
= parse_submodule_fetchjobs(k
, v
);
76 } else if (!strcmp(k
, "fetch.recursesubmodules")) {
77 recurse_submodules
= parse_fetch_recurse_submodules_arg(k
, v
);
81 return git_default_config(k
, v
, cb
);
84 static int gitmodules_fetch_config(const char *var
, const char *value
, void *cb
)
86 if (!strcmp(var
, "submodule.fetchjobs")) {
87 max_children
= parse_submodule_fetchjobs(var
, value
);
89 } else if (!strcmp(var
, "fetch.recursesubmodules")) {
90 recurse_submodules
= parse_fetch_recurse_submodules_arg(var
, value
);
97 static int parse_refmap_arg(const struct option
*opt
, const char *arg
, int unset
)
99 ALLOC_GROW(refmap_array
, refmap_nr
+ 1, refmap_alloc
);
102 * "git fetch --refmap='' origin foo"
103 * can be used to tell the command not to store anywhere
106 refmap_array
[refmap_nr
++] = arg
;
110 static struct option builtin_fetch_options
[] = {
111 OPT__VERBOSITY(&verbosity
),
112 OPT_BOOL(0, "all", &all
,
113 N_("fetch from all remotes")),
114 OPT_BOOL('a', "append", &append
,
115 N_("append to .git/FETCH_HEAD instead of overwriting")),
116 OPT_STRING(0, "upload-pack", &upload_pack
, N_("path"),
117 N_("path to upload pack on remote end")),
118 OPT__FORCE(&force
, N_("force overwrite of local branch")),
119 OPT_BOOL('m', "multiple", &multiple
,
120 N_("fetch from multiple remotes")),
121 OPT_SET_INT('t', "tags", &tags
,
122 N_("fetch all tags and associated objects"), TAGS_SET
),
123 OPT_SET_INT('n', NULL
, &tags
,
124 N_("do not fetch all tags (--no-tags)"), TAGS_UNSET
),
125 OPT_INTEGER('j', "jobs", &max_children
,
126 N_("number of submodules fetched in parallel")),
127 OPT_BOOL('p', "prune", &prune
,
128 N_("prune remote-tracking branches no longer on remote")),
129 { OPTION_CALLBACK
, 0, "recurse-submodules", &recurse_submodules
, N_("on-demand"),
130 N_("control recursive fetching of submodules"),
131 PARSE_OPT_OPTARG
, option_fetch_parse_recurse_submodules
},
132 OPT_BOOL(0, "dry-run", &dry_run
,
134 OPT_BOOL('k', "keep", &keep
, N_("keep downloaded pack")),
135 OPT_BOOL('u', "update-head-ok", &update_head_ok
,
136 N_("allow updating of HEAD ref")),
137 OPT_BOOL(0, "progress", &progress
, N_("force progress reporting")),
138 OPT_STRING(0, "depth", &depth
, N_("depth"),
139 N_("deepen history of shallow clone")),
140 OPT_STRING(0, "shallow-since", &deepen_since
, N_("time"),
141 N_("deepen history of shallow repository based on time")),
142 OPT_STRING_LIST(0, "shallow-exclude", &deepen_not
, N_("revision"),
143 N_("deepen history of shallow clone, excluding rev")),
144 OPT_INTEGER(0, "deepen", &deepen_relative
,
145 N_("deepen history of shallow clone")),
146 { OPTION_SET_INT
, 0, "unshallow", &unshallow
, NULL
,
147 N_("convert to a complete repository"),
148 PARSE_OPT_NONEG
| PARSE_OPT_NOARG
, NULL
, 1 },
149 { OPTION_STRING
, 0, "submodule-prefix", &submodule_prefix
, N_("dir"),
150 N_("prepend this to submodule path output"), PARSE_OPT_HIDDEN
},
151 { OPTION_CALLBACK
, 0, "recurse-submodules-default",
152 &recurse_submodules_default
, N_("on-demand"),
153 N_("default for recursive fetching of submodules "
154 "(lower priority than config files)"),
155 PARSE_OPT_HIDDEN
, option_fetch_parse_recurse_submodules
},
156 OPT_BOOL(0, "update-shallow", &update_shallow
,
157 N_("accept refs that update .git/shallow")),
158 { OPTION_CALLBACK
, 0, "refmap", NULL
, N_("refmap"),
159 N_("specify fetch refmap"), PARSE_OPT_NONEG
, parse_refmap_arg
},
160 OPT_SET_INT('4', "ipv4", &family
, N_("use IPv4 addresses only"),
161 TRANSPORT_FAMILY_IPV4
),
162 OPT_SET_INT('6', "ipv6", &family
, N_("use IPv6 addresses only"),
163 TRANSPORT_FAMILY_IPV6
),
167 static void unlock_pack(void)
170 transport_unlock_pack(gtransport
);
172 transport_unlock_pack(gsecondary
);
175 static void unlock_pack_on_signal(int signo
)
182 static void add_merge_config(struct ref
**head
,
183 const struct ref
*remote_refs
,
184 struct branch
*branch
,
189 for (i
= 0; i
< branch
->merge_nr
; i
++) {
190 struct ref
*rm
, **old_tail
= *tail
;
191 struct refspec refspec
;
193 for (rm
= *head
; rm
; rm
= rm
->next
) {
194 if (branch_merge_matches(branch
, i
, rm
->name
)) {
195 rm
->fetch_head_status
= FETCH_HEAD_MERGE
;
203 * Not fetched to a remote-tracking branch? We need to fetch
204 * it anyway to allow this branch's "branch.$name.merge"
205 * to be honored by 'git pull', but we do not have to
206 * fail if branch.$name.merge is misconfigured to point
207 * at a nonexisting branch. If we were indeed called by
208 * 'git pull', it will notice the misconfiguration because
209 * there is no entry in the resulting FETCH_HEAD marked
212 memset(&refspec
, 0, sizeof(refspec
));
213 refspec
.src
= branch
->merge
[i
]->src
;
214 get_fetch_map(remote_refs
, &refspec
, tail
, 1);
215 for (rm
= *old_tail
; rm
; rm
= rm
->next
)
216 rm
->fetch_head_status
= FETCH_HEAD_MERGE
;
220 static int add_existing(const char *refname
, const struct object_id
*oid
,
221 int flag
, void *cbdata
)
223 struct string_list
*list
= (struct string_list
*)cbdata
;
224 struct string_list_item
*item
= string_list_insert(list
, refname
);
225 struct object_id
*old_oid
= xmalloc(sizeof(*old_oid
));
227 oidcpy(old_oid
, oid
);
228 item
->util
= old_oid
;
232 static int will_fetch(struct ref
**head
, const unsigned char *sha1
)
234 struct ref
*rm
= *head
;
236 if (!hashcmp(rm
->old_oid
.hash
, sha1
))
243 static void find_non_local_tags(struct transport
*transport
,
247 struct string_list existing_refs
= STRING_LIST_INIT_DUP
;
248 struct string_list remote_refs
= STRING_LIST_INIT_NODUP
;
249 const struct ref
*ref
;
250 struct string_list_item
*item
= NULL
;
252 for_each_ref(add_existing
, &existing_refs
);
253 for (ref
= transport_get_remote_refs(transport
); ref
; ref
= ref
->next
) {
254 if (!starts_with(ref
->name
, "refs/tags/"))
258 * The peeled ref always follows the matching base
259 * ref, so if we see a peeled ref that we don't want
260 * to fetch then we can mark the ref entry in the list
261 * as one to ignore by setting util to NULL.
263 if (ends_with(ref
->name
, "^{}")) {
265 !has_object_file_with_flags(&ref
->old_oid
,
266 OBJECT_INFO_QUICK
) &&
267 !will_fetch(head
, ref
->old_oid
.hash
) &&
268 !has_sha1_file_with_flags(item
->util
,
269 OBJECT_INFO_QUICK
) &&
270 !will_fetch(head
, item
->util
))
277 * If item is non-NULL here, then we previously saw a
278 * ref not followed by a peeled reference, so we need
279 * to check if it is a lightweight tag that we want to
283 !has_sha1_file_with_flags(item
->util
, OBJECT_INFO_QUICK
) &&
284 !will_fetch(head
, item
->util
))
289 /* skip duplicates and refs that we already have */
290 if (string_list_has_string(&remote_refs
, ref
->name
) ||
291 string_list_has_string(&existing_refs
, ref
->name
))
294 item
= string_list_insert(&remote_refs
, ref
->name
);
295 item
->util
= (void *)&ref
->old_oid
;
297 string_list_clear(&existing_refs
, 1);
300 * We may have a final lightweight tag that needs to be
301 * checked to see if it needs fetching.
304 !has_sha1_file_with_flags(item
->util
, OBJECT_INFO_QUICK
) &&
305 !will_fetch(head
, item
->util
))
309 * For all the tags in the remote_refs string list,
310 * add them to the list of refs to be fetched
312 for_each_string_list_item(item
, &remote_refs
) {
313 /* Unless we have already decided to ignore this item... */
316 struct ref
*rm
= alloc_ref(item
->string
);
317 rm
->peer_ref
= alloc_ref(item
->string
);
318 oidcpy(&rm
->old_oid
, item
->util
);
324 string_list_clear(&remote_refs
, 0);
327 static struct ref
*get_ref_map(struct transport
*transport
,
328 struct refspec
*refspecs
, int refspec_count
,
329 int tags
, int *autotags
)
333 struct ref
*ref_map
= NULL
;
334 struct ref
**tail
= &ref_map
;
336 /* opportunistically-updated references: */
337 struct ref
*orefs
= NULL
, **oref_tail
= &orefs
;
339 const struct ref
*remote_refs
= transport_get_remote_refs(transport
);
342 struct refspec
*fetch_refspec
;
343 int fetch_refspec_nr
;
345 for (i
= 0; i
< refspec_count
; i
++) {
346 get_fetch_map(remote_refs
, &refspecs
[i
], &tail
, 0);
347 if (refspecs
[i
].dst
&& refspecs
[i
].dst
[0])
350 /* Merge everything on the command line (but not --tags) */
351 for (rm
= ref_map
; rm
; rm
= rm
->next
)
352 rm
->fetch_head_status
= FETCH_HEAD_MERGE
;
355 * For any refs that we happen to be fetching via
356 * command-line arguments, the destination ref might
357 * have been missing or have been different than the
358 * remote-tracking ref that would be derived from the
359 * configured refspec. In these cases, we want to
360 * take the opportunity to update their configured
361 * remote-tracking reference. However, we do not want
362 * to mention these entries in FETCH_HEAD at all, as
363 * they would simply be duplicates of existing
364 * entries, so we set them FETCH_HEAD_IGNORE below.
366 * We compute these entries now, based only on the
367 * refspecs specified on the command line. But we add
368 * them to the list following the refspecs resulting
369 * from the tags option so that one of the latter,
370 * which has FETCH_HEAD_NOT_FOR_MERGE, is not removed
371 * by ref_remove_duplicates() in favor of one of these
372 * opportunistic entries with FETCH_HEAD_IGNORE.
375 fetch_refspec
= parse_fetch_refspec(refmap_nr
, refmap_array
);
376 fetch_refspec_nr
= refmap_nr
;
378 fetch_refspec
= transport
->remote
->fetch
;
379 fetch_refspec_nr
= transport
->remote
->fetch_refspec_nr
;
382 for (i
= 0; i
< fetch_refspec_nr
; i
++)
383 get_fetch_map(ref_map
, &fetch_refspec
[i
], &oref_tail
, 1);
384 } else if (refmap_array
) {
385 die("--refmap option is only meaningful with command-line refspec(s).");
387 /* Use the defaults */
388 struct remote
*remote
= transport
->remote
;
389 struct branch
*branch
= branch_get(NULL
);
390 int has_merge
= branch_has_merge_config(branch
);
392 (remote
->fetch_refspec_nr
||
393 /* Note: has_merge implies non-NULL branch->remote_name */
394 (has_merge
&& !strcmp(branch
->remote_name
, remote
->name
)))) {
395 for (i
= 0; i
< remote
->fetch_refspec_nr
; i
++) {
396 get_fetch_map(remote_refs
, &remote
->fetch
[i
], &tail
, 0);
397 if (remote
->fetch
[i
].dst
&&
398 remote
->fetch
[i
].dst
[0])
400 if (!i
&& !has_merge
&& ref_map
&&
401 !remote
->fetch
[0].pattern
)
402 ref_map
->fetch_head_status
= FETCH_HEAD_MERGE
;
405 * if the remote we're fetching from is the same
406 * as given in branch.<name>.remote, we add the
407 * ref given in branch.<name>.merge, too.
409 * Note: has_merge implies non-NULL branch->remote_name
412 !strcmp(branch
->remote_name
, remote
->name
))
413 add_merge_config(&ref_map
, remote_refs
, branch
, &tail
);
415 ref_map
= get_remote_ref(remote_refs
, "HEAD");
417 die(_("Couldn't find remote ref HEAD"));
418 ref_map
->fetch_head_status
= FETCH_HEAD_MERGE
;
419 tail
= &ref_map
->next
;
423 if (tags
== TAGS_SET
)
424 /* also fetch all tags */
425 get_fetch_map(remote_refs
, tag_refspec
, &tail
, 0);
426 else if (tags
== TAGS_DEFAULT
&& *autotags
)
427 find_non_local_tags(transport
, &ref_map
, &tail
);
429 /* Now append any refs to be updated opportunistically: */
431 for (rm
= orefs
; rm
; rm
= rm
->next
) {
432 rm
->fetch_head_status
= FETCH_HEAD_IGNORE
;
436 return ref_remove_duplicates(ref_map
);
439 #define STORE_REF_ERROR_OTHER 1
440 #define STORE_REF_ERROR_DF_CONFLICT 2
442 static int s_update_ref(const char *action
,
447 char *rla
= getenv("GIT_REFLOG_ACTION");
448 struct ref_transaction
*transaction
;
449 struct strbuf err
= STRBUF_INIT
;
450 int ret
, df_conflict
= 0;
455 rla
= default_rla
.buf
;
456 msg
= xstrfmt("%s: %s", rla
, action
);
458 transaction
= ref_transaction_begin(&err
);
460 ref_transaction_update(transaction
, ref
->name
,
462 check_old
? &ref
->old_oid
: NULL
,
466 ret
= ref_transaction_commit(transaction
, &err
);
468 df_conflict
= (ret
== TRANSACTION_NAME_CONFLICT
);
472 ref_transaction_free(transaction
);
473 strbuf_release(&err
);
477 ref_transaction_free(transaction
);
478 error("%s", err
.buf
);
479 strbuf_release(&err
);
481 return df_conflict
? STORE_REF_ERROR_DF_CONFLICT
482 : STORE_REF_ERROR_OTHER
;
485 static int refcol_width
= 10;
486 static int compact_format
;
488 static void adjust_refcol_width(const struct ref
*ref
)
490 int max
, rlen
, llen
, len
;
492 /* uptodate lines are only shown on high verbosity level */
493 if (!verbosity
&& !oidcmp(&ref
->peer_ref
->old_oid
, &ref
->old_oid
))
496 max
= term_columns();
497 rlen
= utf8_strwidth(prettify_refname(ref
->name
));
499 llen
= utf8_strwidth(prettify_refname(ref
->peer_ref
->name
));
502 * rough estimation to see if the output line is too long and
503 * should not be counted (we can't do precise calculation
504 * anyway because we don't know if the error explanation part
505 * will be printed in update_local_ref)
507 if (compact_format
) {
511 len
= 21 /* flag and summary */ + rlen
+ 4 /* -> */ + llen
;
516 * Not precise calculation for compact mode because '*' can
517 * appear on the left hand side of '->' and shrink the column
520 if (refcol_width
< rlen
)
524 static void prepare_format_display(struct ref
*ref_map
)
527 const char *format
= "full";
529 git_config_get_string_const("fetch.output", &format
);
530 if (!strcasecmp(format
, "full"))
532 else if (!strcasecmp(format
, "compact"))
535 die(_("configuration fetch.output contains invalid value %s"),
538 for (rm
= ref_map
; rm
; rm
= rm
->next
) {
539 if (rm
->status
== REF_STATUS_REJECT_SHALLOW
||
541 !strcmp(rm
->name
, "HEAD"))
544 adjust_refcol_width(rm
);
548 static void print_remote_to_local(struct strbuf
*display
,
549 const char *remote
, const char *local
)
551 strbuf_addf(display
, "%-*s -> %s", refcol_width
, remote
, local
);
554 static int find_and_replace(struct strbuf
*haystack
,
556 const char *placeholder
)
558 const char *p
= strstr(haystack
->buf
, needle
);
564 if (p
> haystack
->buf
&& p
[-1] != '/')
568 nlen
= strlen(needle
);
569 if (plen
> nlen
&& p
[nlen
] != '/')
572 strbuf_splice(haystack
, p
- haystack
->buf
, nlen
,
573 placeholder
, strlen(placeholder
));
577 static void print_compact(struct strbuf
*display
,
578 const char *remote
, const char *local
)
580 struct strbuf r
= STRBUF_INIT
;
581 struct strbuf l
= STRBUF_INIT
;
583 if (!strcmp(remote
, local
)) {
584 strbuf_addf(display
, "%-*s -> *", refcol_width
, remote
);
588 strbuf_addstr(&r
, remote
);
589 strbuf_addstr(&l
, local
);
591 if (!find_and_replace(&r
, local
, "*"))
592 find_and_replace(&l
, remote
, "*");
593 print_remote_to_local(display
, r
.buf
, l
.buf
);
599 static void format_display(struct strbuf
*display
, char code
,
600 const char *summary
, const char *error
,
601 const char *remote
, const char *local
,
604 int width
= (summary_width
+ strlen(summary
) - gettext_width(summary
));
606 strbuf_addf(display
, "%c %-*s ", code
, width
, summary
);
608 print_remote_to_local(display
, remote
, local
);
610 print_compact(display
, remote
, local
);
612 strbuf_addf(display
, " (%s)", error
);
615 static int update_local_ref(struct ref
*ref
,
617 const struct ref
*remote_ref
,
618 struct strbuf
*display
,
621 struct commit
*current
= NULL
, *updated
;
622 enum object_type type
;
623 struct branch
*current_branch
= branch_get(NULL
);
624 const char *pretty_ref
= prettify_refname(ref
->name
);
626 type
= sha1_object_info(ref
->new_oid
.hash
, NULL
);
628 die(_("object %s not found"), oid_to_hex(&ref
->new_oid
));
630 if (!oidcmp(&ref
->old_oid
, &ref
->new_oid
)) {
632 format_display(display
, '=', _("[up to date]"), NULL
,
633 remote
, pretty_ref
, summary_width
);
637 if (current_branch
&&
638 !strcmp(ref
->name
, current_branch
->name
) &&
639 !(update_head_ok
|| is_bare_repository()) &&
640 !is_null_oid(&ref
->old_oid
)) {
642 * If this is the head, and it's not okay to update
643 * the head, and the old value of the head isn't empty...
645 format_display(display
, '!', _("[rejected]"),
646 _("can't fetch in current branch"),
647 remote
, pretty_ref
, summary_width
);
651 if (!is_null_oid(&ref
->old_oid
) &&
652 starts_with(ref
->name
, "refs/tags/")) {
654 r
= s_update_ref("updating tag", ref
, 0);
655 format_display(display
, r
? '!' : 't', _("[tag update]"),
656 r
? _("unable to update local ref") : NULL
,
657 remote
, pretty_ref
, summary_width
);
661 current
= lookup_commit_reference_gently(&ref
->old_oid
, 1);
662 updated
= lookup_commit_reference_gently(&ref
->new_oid
, 1);
663 if (!current
|| !updated
) {
668 * Nicely describe the new ref we're fetching.
669 * Base this on the remote's ref name, as it's
670 * more likely to follow a standard layout.
672 const char *name
= remote_ref
? remote_ref
->name
: "";
673 if (starts_with(name
, "refs/tags/")) {
675 what
= _("[new tag]");
676 } else if (starts_with(name
, "refs/heads/")) {
677 msg
= "storing head";
678 what
= _("[new branch]");
681 what
= _("[new ref]");
684 if ((recurse_submodules
!= RECURSE_SUBMODULES_OFF
) &&
685 (recurse_submodules
!= RECURSE_SUBMODULES_ON
))
686 check_for_new_submodule_commits(&ref
->new_oid
);
687 r
= s_update_ref(msg
, ref
, 0);
688 format_display(display
, r
? '!' : '*', what
,
689 r
? _("unable to update local ref") : NULL
,
690 remote
, pretty_ref
, summary_width
);
694 if (in_merge_bases(current
, updated
)) {
695 struct strbuf quickref
= STRBUF_INIT
;
697 strbuf_add_unique_abbrev(&quickref
, current
->object
.oid
.hash
, DEFAULT_ABBREV
);
698 strbuf_addstr(&quickref
, "..");
699 strbuf_add_unique_abbrev(&quickref
, ref
->new_oid
.hash
, DEFAULT_ABBREV
);
700 if ((recurse_submodules
!= RECURSE_SUBMODULES_OFF
) &&
701 (recurse_submodules
!= RECURSE_SUBMODULES_ON
))
702 check_for_new_submodule_commits(&ref
->new_oid
);
703 r
= s_update_ref("fast-forward", ref
, 1);
704 format_display(display
, r
? '!' : ' ', quickref
.buf
,
705 r
? _("unable to update local ref") : NULL
,
706 remote
, pretty_ref
, summary_width
);
707 strbuf_release(&quickref
);
709 } else if (force
|| ref
->force
) {
710 struct strbuf quickref
= STRBUF_INIT
;
712 strbuf_add_unique_abbrev(&quickref
, current
->object
.oid
.hash
, DEFAULT_ABBREV
);
713 strbuf_addstr(&quickref
, "...");
714 strbuf_add_unique_abbrev(&quickref
, ref
->new_oid
.hash
, DEFAULT_ABBREV
);
715 if ((recurse_submodules
!= RECURSE_SUBMODULES_OFF
) &&
716 (recurse_submodules
!= RECURSE_SUBMODULES_ON
))
717 check_for_new_submodule_commits(&ref
->new_oid
);
718 r
= s_update_ref("forced-update", ref
, 1);
719 format_display(display
, r
? '!' : '+', quickref
.buf
,
720 r
? _("unable to update local ref") : _("forced update"),
721 remote
, pretty_ref
, summary_width
);
722 strbuf_release(&quickref
);
725 format_display(display
, '!', _("[rejected]"), _("non-fast-forward"),
726 remote
, pretty_ref
, summary_width
);
731 static int iterate_ref_map(void *cb_data
, struct object_id
*oid
)
733 struct ref
**rm
= cb_data
;
734 struct ref
*ref
= *rm
;
736 while (ref
&& ref
->status
== REF_STATUS_REJECT_SHALLOW
)
739 return -1; /* end of the list */
741 oidcpy(oid
, &ref
->old_oid
);
745 static int store_updated_refs(const char *raw_url
, const char *remote_name
,
749 struct commit
*commit
;
750 int url_len
, i
, rc
= 0;
751 struct strbuf note
= STRBUF_INIT
;
752 const char *what
, *kind
;
755 const char *filename
= dry_run
? "/dev/null" : git_path_fetch_head();
757 int summary_width
= transport_summary_width(ref_map
);
759 fp
= fopen(filename
, "a");
761 return error_errno(_("cannot open %s"), filename
);
764 url
= transport_anonymize_url(raw_url
);
766 url
= xstrdup("foreign");
769 if (check_connected(iterate_ref_map
, &rm
, NULL
)) {
770 rc
= error(_("%s did not send all necessary objects\n"), url
);
774 prepare_format_display(ref_map
);
777 * We do a pass for each fetch_head_status type in their enum order, so
778 * merged entries are written before not-for-merge. That lets readers
779 * use FETCH_HEAD as a refname to refer to the ref to be merged.
781 for (want_status
= FETCH_HEAD_MERGE
;
782 want_status
<= FETCH_HEAD_IGNORE
;
784 for (rm
= ref_map
; rm
; rm
= rm
->next
) {
785 struct ref
*ref
= NULL
;
786 const char *merge_status_marker
= "";
788 if (rm
->status
== REF_STATUS_REJECT_SHALLOW
) {
789 if (want_status
== FETCH_HEAD_MERGE
)
790 warning(_("reject %s because shallow roots are not allowed to be updated"),
791 rm
->peer_ref
? rm
->peer_ref
->name
: rm
->name
);
795 commit
= lookup_commit_reference_gently(&rm
->old_oid
,
798 rm
->fetch_head_status
= FETCH_HEAD_NOT_FOR_MERGE
;
800 if (rm
->fetch_head_status
!= want_status
)
804 ref
= alloc_ref(rm
->peer_ref
->name
);
805 oidcpy(&ref
->old_oid
, &rm
->peer_ref
->old_oid
);
806 oidcpy(&ref
->new_oid
, &rm
->old_oid
);
807 ref
->force
= rm
->peer_ref
->force
;
811 if (!strcmp(rm
->name
, "HEAD")) {
815 else if (starts_with(rm
->name
, "refs/heads/")) {
817 what
= rm
->name
+ 11;
819 else if (starts_with(rm
->name
, "refs/tags/")) {
821 what
= rm
->name
+ 10;
823 else if (starts_with(rm
->name
, "refs/remotes/")) {
824 kind
= "remote-tracking branch";
825 what
= rm
->name
+ 13;
832 url_len
= strlen(url
);
833 for (i
= url_len
- 1; url
[i
] == '/' && 0 <= i
; i
--)
836 if (4 < i
&& !strncmp(".git", url
+ i
- 3, 4))
842 strbuf_addf(¬e
, "%s ", kind
);
843 strbuf_addf(¬e
, "'%s' of ", what
);
845 switch (rm
->fetch_head_status
) {
846 case FETCH_HEAD_NOT_FOR_MERGE
:
847 merge_status_marker
= "not-for-merge";
849 case FETCH_HEAD_MERGE
:
850 fprintf(fp
, "%s\t%s\t%s",
851 oid_to_hex(&rm
->old_oid
),
854 for (i
= 0; i
< url_len
; ++i
)
862 /* do not write anything to FETCH_HEAD */
868 rc
|= update_local_ref(ref
, what
, rm
, ¬e
,
872 format_display(¬e
, '*',
873 *kind
? kind
: "branch", NULL
,
874 *what
? what
: "HEAD",
875 "FETCH_HEAD", summary_width
);
877 if (verbosity
>= 0 && !shown_url
) {
878 fprintf(stderr
, _("From %.*s\n"),
883 fprintf(stderr
, " %s\n", note
.buf
);
888 if (rc
& STORE_REF_ERROR_DF_CONFLICT
)
889 error(_("some local refs could not be updated; try running\n"
890 " 'git remote prune %s' to remove any old, conflicting "
891 "branches"), remote_name
);
894 strbuf_release(¬e
);
901 * We would want to bypass the object transfer altogether if
902 * everything we are going to fetch already exists and is connected
905 static int quickfetch(struct ref
*ref_map
)
907 struct ref
*rm
= ref_map
;
908 struct check_connected_options opt
= CHECK_CONNECTED_INIT
;
911 * If we are deepening a shallow clone we already have these
912 * objects reachable. Running rev-list here will return with
913 * a good (0) exit status and we'll bypass the fetch that we
914 * really need to perform. Claiming failure now will ensure
915 * we perform the network exchange to deepen our history.
920 return check_connected(iterate_ref_map
, &rm
, &opt
);
923 static int fetch_refs(struct transport
*transport
, struct ref
*ref_map
)
925 int ret
= quickfetch(ref_map
);
927 ret
= transport_fetch_refs(transport
, ref_map
);
929 ret
|= store_updated_refs(transport
->url
,
930 transport
->remote
->name
,
932 transport_unlock_pack(transport
);
936 static int prune_refs(struct refspec
*refs
, int ref_count
, struct ref
*ref_map
,
939 int url_len
, i
, result
= 0;
940 struct ref
*ref
, *stale_refs
= get_stale_heads(refs
, ref_count
, ref_map
);
942 int summary_width
= transport_summary_width(stale_refs
);
943 const char *dangling_msg
= dry_run
944 ? _(" (%s will become dangling)")
945 : _(" (%s has become dangling)");
948 url
= transport_anonymize_url(raw_url
);
950 url
= xstrdup("foreign");
952 url_len
= strlen(url
);
953 for (i
= url_len
- 1; url
[i
] == '/' && 0 <= i
; i
--)
957 if (4 < i
&& !strncmp(".git", url
+ i
- 3, 4))
961 struct string_list refnames
= STRING_LIST_INIT_NODUP
;
963 for (ref
= stale_refs
; ref
; ref
= ref
->next
)
964 string_list_append(&refnames
, ref
->name
);
966 result
= delete_refs("fetch: prune", &refnames
, 0);
967 string_list_clear(&refnames
, 0);
970 if (verbosity
>= 0) {
971 for (ref
= stale_refs
; ref
; ref
= ref
->next
) {
972 struct strbuf sb
= STRBUF_INIT
;
974 fprintf(stderr
, _("From %.*s\n"), url_len
, url
);
977 format_display(&sb
, '-', _("[deleted]"), NULL
,
978 _("(none)"), prettify_refname(ref
->name
),
980 fprintf(stderr
, " %s\n",sb
.buf
);
982 warn_dangling_symref(stderr
, dangling_msg
, ref
->name
);
987 free_refs(stale_refs
);
991 static void check_not_current_branch(struct ref
*ref_map
)
993 struct branch
*current_branch
= branch_get(NULL
);
995 if (is_bare_repository() || !current_branch
)
998 for (; ref_map
; ref_map
= ref_map
->next
)
999 if (ref_map
->peer_ref
&& !strcmp(current_branch
->refname
,
1000 ref_map
->peer_ref
->name
))
1001 die(_("Refusing to fetch into current branch %s "
1002 "of non-bare repository"), current_branch
->refname
);
1005 static int truncate_fetch_head(void)
1007 const char *filename
= git_path_fetch_head();
1008 FILE *fp
= fopen_for_writing(filename
);
1011 return error_errno(_("cannot open %s"), filename
);
1016 static void set_option(struct transport
*transport
, const char *name
, const char *value
)
1018 int r
= transport_set_option(transport
, name
, value
);
1020 die(_("Option \"%s\" value \"%s\" is not valid for %s"),
1021 name
, value
, transport
->url
);
1023 warning(_("Option \"%s\" is ignored for %s\n"),
1024 name
, transport
->url
);
1027 static struct transport
*prepare_transport(struct remote
*remote
, int deepen
)
1029 struct transport
*transport
;
1030 transport
= transport_get(remote
, NULL
);
1031 transport_set_verbosity(transport
, verbosity
, progress
);
1032 transport
->family
= family
;
1034 set_option(transport
, TRANS_OPT_UPLOADPACK
, upload_pack
);
1036 set_option(transport
, TRANS_OPT_KEEP
, "yes");
1038 set_option(transport
, TRANS_OPT_DEPTH
, depth
);
1039 if (deepen
&& deepen_since
)
1040 set_option(transport
, TRANS_OPT_DEEPEN_SINCE
, deepen_since
);
1041 if (deepen
&& deepen_not
.nr
)
1042 set_option(transport
, TRANS_OPT_DEEPEN_NOT
,
1043 (const char *)&deepen_not
);
1044 if (deepen_relative
)
1045 set_option(transport
, TRANS_OPT_DEEPEN_RELATIVE
, "yes");
1047 set_option(transport
, TRANS_OPT_UPDATE_SHALLOW
, "yes");
1051 static void backfill_tags(struct transport
*transport
, struct ref
*ref_map
)
1056 * Once we have set TRANS_OPT_DEEPEN_SINCE, we can't unset it
1057 * when remote helper is used (setting it to an empty string
1058 * is not unsetting). We could extend the remote helper
1059 * protocol for that, but for now, just force a new connection
1060 * without deepen-since. Similar story for deepen-not.
1062 cannot_reuse
= transport
->cannot_reuse
||
1063 deepen_since
|| deepen_not
.nr
;
1065 gsecondary
= prepare_transport(transport
->remote
, 0);
1066 transport
= gsecondary
;
1069 transport_set_option(transport
, TRANS_OPT_FOLLOWTAGS
, NULL
);
1070 transport_set_option(transport
, TRANS_OPT_DEPTH
, "0");
1071 transport_set_option(transport
, TRANS_OPT_DEEPEN_RELATIVE
, NULL
);
1072 fetch_refs(transport
, ref_map
);
1075 transport_disconnect(gsecondary
);
1080 static int do_fetch(struct transport
*transport
,
1081 struct refspec
*refs
, int ref_count
)
1083 struct string_list existing_refs
= STRING_LIST_INIT_DUP
;
1084 struct ref
*ref_map
;
1086 int autotags
= (transport
->remote
->fetch_tags
== 1);
1089 for_each_ref(add_existing
, &existing_refs
);
1091 if (tags
== TAGS_DEFAULT
) {
1092 if (transport
->remote
->fetch_tags
== 2)
1094 if (transport
->remote
->fetch_tags
== -1)
1098 /* if not appending, truncate FETCH_HEAD */
1099 if (!append
&& !dry_run
) {
1100 retcode
= truncate_fetch_head();
1105 ref_map
= get_ref_map(transport
, refs
, ref_count
, tags
, &autotags
);
1106 if (!update_head_ok
)
1107 check_not_current_branch(ref_map
);
1109 for (rm
= ref_map
; rm
; rm
= rm
->next
) {
1111 struct string_list_item
*peer_item
=
1112 string_list_lookup(&existing_refs
,
1113 rm
->peer_ref
->name
);
1115 struct object_id
*old_oid
= peer_item
->util
;
1116 oidcpy(&rm
->peer_ref
->old_oid
, old_oid
);
1121 if (tags
== TAGS_DEFAULT
&& autotags
)
1122 transport_set_option(transport
, TRANS_OPT_FOLLOWTAGS
, "1");
1125 * We only prune based on refspecs specified
1126 * explicitly (via command line or configuration); we
1127 * don't care whether --tags was specified.
1130 prune_refs(refs
, ref_count
, ref_map
, transport
->url
);
1132 prune_refs(transport
->remote
->fetch
,
1133 transport
->remote
->fetch_refspec_nr
,
1138 if (fetch_refs(transport
, ref_map
)) {
1145 /* if neither --no-tags nor --tags was specified, do automated tag
1147 if (tags
== TAGS_DEFAULT
&& autotags
) {
1148 struct ref
**tail
= &ref_map
;
1150 find_non_local_tags(transport
, &ref_map
, &tail
);
1152 backfill_tags(transport
, ref_map
);
1157 string_list_clear(&existing_refs
, 1);
1161 static int get_one_remote_for_fetch(struct remote
*remote
, void *priv
)
1163 struct string_list
*list
= priv
;
1164 if (!remote
->skip_default_update
)
1165 string_list_append(list
, remote
->name
);
1169 struct remote_group_data
{
1171 struct string_list
*list
;
1174 static int get_remote_group(const char *key
, const char *value
, void *priv
)
1176 struct remote_group_data
*g
= priv
;
1178 if (skip_prefix(key
, "remotes.", &key
) && !strcmp(key
, g
->name
)) {
1179 /* split list by white space */
1181 size_t wordlen
= strcspn(value
, " \t\n");
1184 string_list_append_nodup(g
->list
,
1185 xstrndup(value
, wordlen
));
1186 value
+= wordlen
+ (value
[wordlen
] != '\0');
1193 static int add_remote_or_group(const char *name
, struct string_list
*list
)
1195 int prev_nr
= list
->nr
;
1196 struct remote_group_data g
;
1197 g
.name
= name
; g
.list
= list
;
1199 git_config(get_remote_group
, &g
);
1200 if (list
->nr
== prev_nr
) {
1201 struct remote
*remote
= remote_get(name
);
1202 if (!remote_is_configured(remote
, 0))
1204 string_list_append(list
, remote
->name
);
1209 static void add_options_to_argv(struct argv_array
*argv
)
1212 argv_array_push(argv
, "--dry-run");
1214 argv_array_push(argv
, prune
? "--prune" : "--no-prune");
1216 argv_array_push(argv
, "--update-head-ok");
1218 argv_array_push(argv
, "--force");
1220 argv_array_push(argv
, "--keep");
1221 if (recurse_submodules
== RECURSE_SUBMODULES_ON
)
1222 argv_array_push(argv
, "--recurse-submodules");
1223 else if (recurse_submodules
== RECURSE_SUBMODULES_ON_DEMAND
)
1224 argv_array_push(argv
, "--recurse-submodules=on-demand");
1225 if (tags
== TAGS_SET
)
1226 argv_array_push(argv
, "--tags");
1227 else if (tags
== TAGS_UNSET
)
1228 argv_array_push(argv
, "--no-tags");
1230 argv_array_push(argv
, "-v");
1232 argv_array_push(argv
, "-v");
1233 else if (verbosity
< 0)
1234 argv_array_push(argv
, "-q");
1238 static int fetch_multiple(struct string_list
*list
)
1241 struct argv_array argv
= ARGV_ARRAY_INIT
;
1243 if (!append
&& !dry_run
) {
1244 int errcode
= truncate_fetch_head();
1249 argv_array_pushl(&argv
, "fetch", "--append", NULL
);
1250 add_options_to_argv(&argv
);
1252 for (i
= 0; i
< list
->nr
; i
++) {
1253 const char *name
= list
->items
[i
].string
;
1254 argv_array_push(&argv
, name
);
1256 printf(_("Fetching %s\n"), name
);
1257 if (run_command_v_opt(argv
.argv
, RUN_GIT_CMD
)) {
1258 error(_("Could not fetch %s"), name
);
1261 argv_array_pop(&argv
);
1264 argv_array_clear(&argv
);
1268 static int fetch_one(struct remote
*remote
, int argc
, const char **argv
)
1270 static const char **refs
= NULL
;
1271 struct refspec
*refspec
;
1276 die(_("No remote repository specified. Please, specify either a URL or a\n"
1277 "remote name from which new revisions should be fetched."));
1279 gtransport
= prepare_transport(remote
, 1);
1282 /* no command line request */
1283 if (0 <= remote
->prune
)
1284 prune
= remote
->prune
;
1285 else if (0 <= fetch_prune_config
)
1286 prune
= fetch_prune_config
;
1288 prune
= PRUNE_BY_DEFAULT
;
1294 refs
= xcalloc(st_add(argc
, 1), sizeof(const char *));
1295 for (i
= 0; i
< argc
; i
++) {
1296 if (!strcmp(argv
[i
], "tag")) {
1299 die(_("You need to specify a tag name."));
1300 refs
[j
++] = xstrfmt("refs/tags/%s:refs/tags/%s",
1303 refs
[j
++] = argv
[i
];
1308 sigchain_push_common(unlock_pack_on_signal
);
1309 atexit(unlock_pack
);
1310 refspec
= parse_fetch_refspec(ref_nr
, refs
);
1311 exit_code
= do_fetch(gtransport
, refspec
, ref_nr
);
1312 free_refspec(ref_nr
, refspec
);
1313 transport_disconnect(gtransport
);
1318 int cmd_fetch(int argc
, const char **argv
, const char *prefix
)
1321 struct string_list list
= STRING_LIST_INIT_DUP
;
1322 struct remote
*remote
;
1324 struct argv_array argv_gc_auto
= ARGV_ARRAY_INIT
;
1326 packet_trace_identity("fetch");
1328 /* Record the command line for the reflog */
1329 strbuf_addstr(&default_rla
, "fetch");
1330 for (i
= 1; i
< argc
; i
++)
1331 strbuf_addf(&default_rla
, " %s", argv
[i
]);
1333 config_from_gitmodules(gitmodules_fetch_config
, NULL
);
1334 git_config(git_fetch_config
, NULL
);
1336 argc
= parse_options(argc
, argv
, prefix
,
1337 builtin_fetch_options
, builtin_fetch_usage
, 0);
1339 if (deepen_relative
) {
1340 if (deepen_relative
< 0)
1341 die(_("Negative depth in --deepen is not supported"));
1343 die(_("--deepen and --depth are mutually exclusive"));
1344 depth
= xstrfmt("%d", deepen_relative
);
1348 die(_("--depth and --unshallow cannot be used together"));
1349 else if (!is_repository_shallow())
1350 die(_("--unshallow on a complete repository does not make sense"));
1352 depth
= xstrfmt("%d", INFINITE_DEPTH
);
1355 /* no need to be strict, transport_set_option() will validate it again */
1356 if (depth
&& atoi(depth
) < 1)
1357 die(_("depth %s is not a positive number"), depth
);
1358 if (depth
|| deepen_since
|| deepen_not
.nr
)
1363 die(_("fetch --all does not take a repository argument"));
1365 die(_("fetch --all does not make sense with refspecs"));
1366 (void) for_each_remote(get_one_remote_for_fetch
, &list
);
1367 result
= fetch_multiple(&list
);
1368 } else if (argc
== 0) {
1369 /* No arguments -- use default remote */
1370 remote
= remote_get(NULL
);
1371 result
= fetch_one(remote
, argc
, argv
);
1372 } else if (multiple
) {
1373 /* All arguments are assumed to be remotes or groups */
1374 for (i
= 0; i
< argc
; i
++)
1375 if (!add_remote_or_group(argv
[i
], &list
))
1376 die(_("No such remote or remote group: %s"), argv
[i
]);
1377 result
= fetch_multiple(&list
);
1379 /* Single remote or group */
1380 (void) add_remote_or_group(argv
[0], &list
);
1382 /* More than one remote */
1384 die(_("Fetching a group and specifying refspecs does not make sense"));
1385 result
= fetch_multiple(&list
);
1387 /* Zero or one remotes */
1388 remote
= remote_get(argv
[0]);
1389 result
= fetch_one(remote
, argc
-1, argv
+1);
1393 if (!result
&& (recurse_submodules
!= RECURSE_SUBMODULES_OFF
)) {
1394 struct argv_array options
= ARGV_ARRAY_INIT
;
1396 add_options_to_argv(&options
);
1397 result
= fetch_populated_submodules(the_repository
,
1401 recurse_submodules_default
,
1404 argv_array_clear(&options
);
1407 string_list_clear(&list
, 0);
1411 argv_array_pushl(&argv_gc_auto
, "gc", "--auto", NULL
);
1413 argv_array_push(&argv_gc_auto
, "--quiet");
1414 run_command_v_opt(argv_gc_auto
.argv
, RUN_GIT_CMD
);
1415 argv_array_clear(&argv_gc_auto
);