8 #include "string-list.h"
10 #include "transport.h"
11 #include "run-command.h"
12 #include "parse-options.h"
14 #include "transport.h"
15 #include "submodule.h"
16 #include "connected.h"
17 #include "argv-array.h"
19 static const char * const builtin_fetch_usage
[] = {
20 N_("git fetch [<options>] [<repository> [<refspec>...]]"),
21 N_("git fetch [<options>] <group>"),
22 N_("git fetch --multiple [<options>] [(<repository> | <group>)...]"),
23 N_("git fetch --all [<options>]"),
33 static int fetch_prune_config
= -1; /* unspecified */
34 static int prune
= -1; /* unspecified */
35 #define PRUNE_BY_DEFAULT 0 /* do we prune by default? */
37 static int all
, append
, dry_run
, force
, keep
, multiple
, update_head_ok
, verbosity
;
38 static int progress
= -1, recurse_submodules
= RECURSE_SUBMODULES_DEFAULT
;
39 static int tags
= TAGS_DEFAULT
, unshallow
;
40 static const char *depth
;
41 static const char *upload_pack
;
42 static struct strbuf default_rla
= STRBUF_INIT
;
43 static struct transport
*gtransport
;
44 static struct transport
*gsecondary
;
45 static const char *submodule_prefix
= "";
46 static const char *recurse_submodules_default
;
48 static int option_parse_recurse_submodules(const struct option
*opt
,
49 const char *arg
, int unset
)
52 recurse_submodules
= RECURSE_SUBMODULES_OFF
;
55 recurse_submodules
= parse_fetch_recurse_submodules_arg(opt
->long_name
, arg
);
57 recurse_submodules
= RECURSE_SUBMODULES_ON
;
62 static int git_fetch_config(const char *k
, const char *v
, void *cb
)
64 if (!strcmp(k
, "fetch.prune")) {
65 fetch_prune_config
= git_config_bool(k
, v
);
71 static struct option builtin_fetch_options
[] = {
72 OPT__VERBOSITY(&verbosity
),
73 OPT_BOOL(0, "all", &all
,
74 N_("fetch from all remotes")),
75 OPT_BOOL('a', "append", &append
,
76 N_("append to .git/FETCH_HEAD instead of overwriting")),
77 OPT_STRING(0, "upload-pack", &upload_pack
, N_("path"),
78 N_("path to upload pack on remote end")),
79 OPT__FORCE(&force
, N_("force overwrite of local branch")),
80 OPT_BOOL('m', "multiple", &multiple
,
81 N_("fetch from multiple remotes")),
82 OPT_SET_INT('t', "tags", &tags
,
83 N_("fetch all tags and associated objects"), TAGS_SET
),
84 OPT_SET_INT('n', NULL
, &tags
,
85 N_("do not fetch all tags (--no-tags)"), TAGS_UNSET
),
86 OPT_BOOL('p', "prune", &prune
,
87 N_("prune remote-tracking branches no longer on remote")),
88 { OPTION_CALLBACK
, 0, "recurse-submodules", NULL
, N_("on-demand"),
89 N_("control recursive fetching of submodules"),
90 PARSE_OPT_OPTARG
, option_parse_recurse_submodules
},
91 OPT_BOOL(0, "dry-run", &dry_run
,
93 OPT_BOOL('k', "keep", &keep
, N_("keep downloaded pack")),
94 OPT_BOOL('u', "update-head-ok", &update_head_ok
,
95 N_("allow updating of HEAD ref")),
96 OPT_BOOL(0, "progress", &progress
, N_("force progress reporting")),
97 OPT_STRING(0, "depth", &depth
, N_("depth"),
98 N_("deepen history of shallow clone")),
99 { OPTION_SET_INT
, 0, "unshallow", &unshallow
, NULL
,
100 N_("convert to a complete repository"),
101 PARSE_OPT_NONEG
| PARSE_OPT_NOARG
, NULL
, 1 },
102 { OPTION_STRING
, 0, "submodule-prefix", &submodule_prefix
, N_("dir"),
103 N_("prepend this to submodule path output"), PARSE_OPT_HIDDEN
},
104 { OPTION_STRING
, 0, "recurse-submodules-default",
105 &recurse_submodules_default
, NULL
,
106 N_("default mode for recursion"), PARSE_OPT_HIDDEN
},
110 static void unlock_pack(void)
113 transport_unlock_pack(gtransport
);
115 transport_unlock_pack(gsecondary
);
118 static void unlock_pack_on_signal(int signo
)
125 static void add_merge_config(struct ref
**head
,
126 const struct ref
*remote_refs
,
127 struct branch
*branch
,
132 for (i
= 0; i
< branch
->merge_nr
; i
++) {
133 struct ref
*rm
, **old_tail
= *tail
;
134 struct refspec refspec
;
136 for (rm
= *head
; rm
; rm
= rm
->next
) {
137 if (branch_merge_matches(branch
, i
, rm
->name
)) {
138 rm
->fetch_head_status
= FETCH_HEAD_MERGE
;
146 * Not fetched to a remote-tracking branch? We need to fetch
147 * it anyway to allow this branch's "branch.$name.merge"
148 * to be honored by 'git pull', but we do not have to
149 * fail if branch.$name.merge is misconfigured to point
150 * at a nonexisting branch. If we were indeed called by
151 * 'git pull', it will notice the misconfiguration because
152 * there is no entry in the resulting FETCH_HEAD marked
155 memset(&refspec
, 0, sizeof(refspec
));
156 refspec
.src
= branch
->merge
[i
]->src
;
157 get_fetch_map(remote_refs
, &refspec
, tail
, 1);
158 for (rm
= *old_tail
; rm
; rm
= rm
->next
)
159 rm
->fetch_head_status
= FETCH_HEAD_MERGE
;
163 static void find_non_local_tags(struct transport
*transport
,
167 static struct ref
*get_ref_map(struct transport
*transport
,
168 struct refspec
*refs
, int ref_count
, int tags
,
173 struct ref
*ref_map
= NULL
;
174 struct ref
**tail
= &ref_map
;
176 const struct ref
*remote_refs
= transport_get_remote_refs(transport
);
178 if (ref_count
|| tags
== TAGS_SET
) {
179 struct ref
**old_tail
;
181 for (i
= 0; i
< ref_count
; i
++) {
182 get_fetch_map(remote_refs
, &refs
[i
], &tail
, 0);
183 if (refs
[i
].dst
&& refs
[i
].dst
[0])
186 /* Merge everything on the command line, but not --tags */
187 for (rm
= ref_map
; rm
; rm
= rm
->next
)
188 rm
->fetch_head_status
= FETCH_HEAD_MERGE
;
189 if (tags
== TAGS_SET
)
190 get_fetch_map(remote_refs
, tag_refspec
, &tail
, 0);
193 * For any refs that we happen to be fetching via command-line
194 * arguments, take the opportunity to update their configured
195 * counterparts. However, we do not want to mention these
196 * entries in FETCH_HEAD at all, as they would simply be
197 * duplicates of existing entries.
200 for (i
= 0; i
< transport
->remote
->fetch_refspec_nr
; i
++)
201 get_fetch_map(ref_map
, &transport
->remote
->fetch
[i
],
203 for (rm
= *old_tail
; rm
; rm
= rm
->next
)
204 rm
->fetch_head_status
= FETCH_HEAD_IGNORE
;
206 /* Use the defaults */
207 struct remote
*remote
= transport
->remote
;
208 struct branch
*branch
= branch_get(NULL
);
209 int has_merge
= branch_has_merge_config(branch
);
211 (remote
->fetch_refspec_nr
||
212 /* Note: has_merge implies non-NULL branch->remote_name */
213 (has_merge
&& !strcmp(branch
->remote_name
, remote
->name
)))) {
214 for (i
= 0; i
< remote
->fetch_refspec_nr
; i
++) {
215 get_fetch_map(remote_refs
, &remote
->fetch
[i
], &tail
, 0);
216 if (remote
->fetch
[i
].dst
&&
217 remote
->fetch
[i
].dst
[0])
219 if (!i
&& !has_merge
&& ref_map
&&
220 !remote
->fetch
[0].pattern
)
221 ref_map
->fetch_head_status
= FETCH_HEAD_MERGE
;
224 * if the remote we're fetching from is the same
225 * as given in branch.<name>.remote, we add the
226 * ref given in branch.<name>.merge, too.
228 * Note: has_merge implies non-NULL branch->remote_name
231 !strcmp(branch
->remote_name
, remote
->name
))
232 add_merge_config(&ref_map
, remote_refs
, branch
, &tail
);
234 ref_map
= get_remote_ref(remote_refs
, "HEAD");
236 die(_("Couldn't find remote ref HEAD"));
237 ref_map
->fetch_head_status
= FETCH_HEAD_MERGE
;
238 tail
= &ref_map
->next
;
241 if (tags
== TAGS_DEFAULT
&& *autotags
)
242 find_non_local_tags(transport
, &ref_map
, &tail
);
243 ref_remove_duplicates(ref_map
);
248 #define STORE_REF_ERROR_OTHER 1
249 #define STORE_REF_ERROR_DF_CONFLICT 2
251 static int s_update_ref(const char *action
,
256 char *rla
= getenv("GIT_REFLOG_ACTION");
257 static struct ref_lock
*lock
;
262 rla
= default_rla
.buf
;
263 snprintf(msg
, sizeof(msg
), "%s: %s", rla
, action
);
264 lock
= lock_any_ref_for_update(ref
->name
,
265 check_old
? ref
->old_sha1
: NULL
,
268 return errno
== ENOTDIR
? STORE_REF_ERROR_DF_CONFLICT
:
269 STORE_REF_ERROR_OTHER
;
270 if (write_ref_sha1(lock
, ref
->new_sha1
, msg
) < 0)
271 return errno
== ENOTDIR
? STORE_REF_ERROR_DF_CONFLICT
:
272 STORE_REF_ERROR_OTHER
;
276 #define REFCOL_WIDTH 10
278 static int update_local_ref(struct ref
*ref
,
280 const struct ref
*remote_ref
,
281 struct strbuf
*display
)
283 struct commit
*current
= NULL
, *updated
;
284 enum object_type type
;
285 struct branch
*current_branch
= branch_get(NULL
);
286 const char *pretty_ref
= prettify_refname(ref
->name
);
288 type
= sha1_object_info(ref
->new_sha1
, NULL
);
290 die(_("object %s not found"), sha1_to_hex(ref
->new_sha1
));
292 if (!hashcmp(ref
->old_sha1
, ref
->new_sha1
)) {
294 strbuf_addf(display
, "= %-*s %-*s -> %s",
295 TRANSPORT_SUMMARY(_("[up to date]")),
296 REFCOL_WIDTH
, remote
, pretty_ref
);
300 if (current_branch
&&
301 !strcmp(ref
->name
, current_branch
->name
) &&
302 !(update_head_ok
|| is_bare_repository()) &&
303 !is_null_sha1(ref
->old_sha1
)) {
305 * If this is the head, and it's not okay to update
306 * the head, and the old value of the head isn't empty...
309 _("! %-*s %-*s -> %s (can't fetch in current branch)"),
310 TRANSPORT_SUMMARY(_("[rejected]")),
311 REFCOL_WIDTH
, remote
, pretty_ref
);
315 if (!is_null_sha1(ref
->old_sha1
) &&
316 !prefixcmp(ref
->name
, "refs/tags/")) {
318 r
= s_update_ref("updating tag", ref
, 0);
319 strbuf_addf(display
, "%c %-*s %-*s -> %s%s",
321 TRANSPORT_SUMMARY(_("[tag update]")),
322 REFCOL_WIDTH
, remote
, pretty_ref
,
323 r
? _(" (unable to update local ref)") : "");
327 current
= lookup_commit_reference_gently(ref
->old_sha1
, 1);
328 updated
= lookup_commit_reference_gently(ref
->new_sha1
, 1);
329 if (!current
|| !updated
) {
334 * Nicely describe the new ref we're fetching.
335 * Base this on the remote's ref name, as it's
336 * more likely to follow a standard layout.
338 const char *name
= remote_ref
? remote_ref
->name
: "";
339 if (!prefixcmp(name
, "refs/tags/")) {
341 what
= _("[new tag]");
342 } else if (!prefixcmp(name
, "refs/heads/")) {
343 msg
= "storing head";
344 what
= _("[new branch]");
347 what
= _("[new ref]");
350 if ((recurse_submodules
!= RECURSE_SUBMODULES_OFF
) &&
351 (recurse_submodules
!= RECURSE_SUBMODULES_ON
))
352 check_for_new_submodule_commits(ref
->new_sha1
);
353 r
= s_update_ref(msg
, ref
, 0);
354 strbuf_addf(display
, "%c %-*s %-*s -> %s%s",
356 TRANSPORT_SUMMARY(what
),
357 REFCOL_WIDTH
, remote
, pretty_ref
,
358 r
? _(" (unable to update local ref)") : "");
362 if (in_merge_bases(current
, updated
)) {
365 strcpy(quickref
, find_unique_abbrev(current
->object
.sha1
, DEFAULT_ABBREV
));
366 strcat(quickref
, "..");
367 strcat(quickref
, find_unique_abbrev(ref
->new_sha1
, DEFAULT_ABBREV
));
368 if ((recurse_submodules
!= RECURSE_SUBMODULES_OFF
) &&
369 (recurse_submodules
!= RECURSE_SUBMODULES_ON
))
370 check_for_new_submodule_commits(ref
->new_sha1
);
371 r
= s_update_ref("fast-forward", ref
, 1);
372 strbuf_addf(display
, "%c %-*s %-*s -> %s%s",
374 TRANSPORT_SUMMARY_WIDTH
, quickref
,
375 REFCOL_WIDTH
, remote
, pretty_ref
,
376 r
? _(" (unable to update local ref)") : "");
378 } else if (force
|| ref
->force
) {
381 strcpy(quickref
, find_unique_abbrev(current
->object
.sha1
, DEFAULT_ABBREV
));
382 strcat(quickref
, "...");
383 strcat(quickref
, find_unique_abbrev(ref
->new_sha1
, DEFAULT_ABBREV
));
384 if ((recurse_submodules
!= RECURSE_SUBMODULES_OFF
) &&
385 (recurse_submodules
!= RECURSE_SUBMODULES_ON
))
386 check_for_new_submodule_commits(ref
->new_sha1
);
387 r
= s_update_ref("forced-update", ref
, 1);
388 strbuf_addf(display
, "%c %-*s %-*s -> %s (%s)",
390 TRANSPORT_SUMMARY_WIDTH
, quickref
,
391 REFCOL_WIDTH
, remote
, pretty_ref
,
392 r
? _("unable to update local ref") : _("forced update"));
395 strbuf_addf(display
, "! %-*s %-*s -> %s %s",
396 TRANSPORT_SUMMARY(_("[rejected]")),
397 REFCOL_WIDTH
, remote
, pretty_ref
,
398 _("(non-fast-forward)"));
403 static int iterate_ref_map(void *cb_data
, unsigned char sha1
[20])
405 struct ref
**rm
= cb_data
;
406 struct ref
*ref
= *rm
;
408 while (ref
&& ref
->status
== REF_STATUS_REJECT_SHALLOW
)
411 return -1; /* end of the list */
413 hashcpy(sha1
, ref
->old_sha1
);
417 static int store_updated_refs(const char *raw_url
, const char *remote_name
,
421 struct commit
*commit
;
422 int url_len
, i
, shown_url
= 0, rc
= 0;
423 struct strbuf note
= STRBUF_INIT
;
424 const char *what
, *kind
;
426 char *url
, *filename
= dry_run
? "/dev/null" : git_path("FETCH_HEAD");
429 fp
= fopen(filename
, "a");
431 return error(_("cannot open %s: %s\n"), filename
, strerror(errno
));
434 url
= transport_anonymize_url(raw_url
);
436 url
= xstrdup("foreign");
439 if (check_everything_connected(iterate_ref_map
, 0, &rm
)) {
440 rc
= error(_("%s did not send all necessary objects\n"), url
);
445 * We do a pass for each fetch_head_status type in their enum order, so
446 * merged entries are written before not-for-merge. That lets readers
447 * use FETCH_HEAD as a refname to refer to the ref to be merged.
449 for (want_status
= FETCH_HEAD_MERGE
;
450 want_status
<= FETCH_HEAD_IGNORE
;
452 for (rm
= ref_map
; rm
; rm
= rm
->next
) {
453 struct ref
*ref
= NULL
;
454 const char *merge_status_marker
= "";
456 if (rm
->status
== REF_STATUS_REJECT_SHALLOW
) {
457 if (want_status
== FETCH_HEAD_MERGE
)
458 warning(_("reject %s because shallow roots are not allowed to be updated"),
459 rm
->peer_ref
? rm
->peer_ref
->name
: rm
->name
);
463 commit
= lookup_commit_reference_gently(rm
->old_sha1
, 1);
465 rm
->fetch_head_status
= FETCH_HEAD_NOT_FOR_MERGE
;
467 if (rm
->fetch_head_status
!= want_status
)
471 ref
= xcalloc(1, sizeof(*ref
) + strlen(rm
->peer_ref
->name
) + 1);
472 strcpy(ref
->name
, rm
->peer_ref
->name
);
473 hashcpy(ref
->old_sha1
, rm
->peer_ref
->old_sha1
);
474 hashcpy(ref
->new_sha1
, rm
->old_sha1
);
475 ref
->force
= rm
->peer_ref
->force
;
479 if (!strcmp(rm
->name
, "HEAD")) {
483 else if (!prefixcmp(rm
->name
, "refs/heads/")) {
485 what
= rm
->name
+ 11;
487 else if (!prefixcmp(rm
->name
, "refs/tags/")) {
489 what
= rm
->name
+ 10;
491 else if (!prefixcmp(rm
->name
, "refs/remotes/")) {
492 kind
= "remote-tracking branch";
493 what
= rm
->name
+ 13;
500 url_len
= strlen(url
);
501 for (i
= url_len
- 1; url
[i
] == '/' && 0 <= i
; i
--)
504 if (4 < i
&& !strncmp(".git", url
+ i
- 3, 4))
510 strbuf_addf(¬e
, "%s ", kind
);
511 strbuf_addf(¬e
, "'%s' of ", what
);
513 switch (rm
->fetch_head_status
) {
514 case FETCH_HEAD_NOT_FOR_MERGE
:
515 merge_status_marker
= "not-for-merge";
517 case FETCH_HEAD_MERGE
:
518 fprintf(fp
, "%s\t%s\t%s",
519 sha1_to_hex(rm
->old_sha1
),
522 for (i
= 0; i
< url_len
; ++i
)
530 /* do not write anything to FETCH_HEAD */
536 rc
|= update_local_ref(ref
, what
, rm
, ¬e
);
539 strbuf_addf(¬e
, "* %-*s %-*s -> FETCH_HEAD",
540 TRANSPORT_SUMMARY_WIDTH
,
541 *kind
? kind
: "branch",
543 *what
? what
: "HEAD");
545 if (verbosity
>= 0 && !shown_url
) {
546 fprintf(stderr
, _("From %.*s\n"),
551 fprintf(stderr
, " %s\n", note
.buf
);
556 if (rc
& STORE_REF_ERROR_DF_CONFLICT
)
557 error(_("some local refs could not be updated; try running\n"
558 " 'git remote prune %s' to remove any old, conflicting "
559 "branches"), remote_name
);
562 strbuf_release(¬e
);
569 * We would want to bypass the object transfer altogether if
570 * everything we are going to fetch already exists and is connected
573 static int quickfetch(struct ref
*ref_map
)
575 struct ref
*rm
= ref_map
;
578 * If we are deepening a shallow clone we already have these
579 * objects reachable. Running rev-list here will return with
580 * a good (0) exit status and we'll bypass the fetch that we
581 * really need to perform. Claiming failure now will ensure
582 * we perform the network exchange to deepen our history.
586 return check_everything_connected(iterate_ref_map
, 1, &rm
);
589 static int fetch_refs(struct transport
*transport
, struct ref
*ref_map
)
591 int ret
= quickfetch(ref_map
);
593 ret
= transport_fetch_refs(transport
, ref_map
);
595 ret
|= store_updated_refs(transport
->url
,
596 transport
->remote
->name
,
598 transport_unlock_pack(transport
);
602 static int prune_refs(struct refspec
*refs
, int ref_count
, struct ref
*ref_map
)
605 struct ref
*ref
, *stale_refs
= get_stale_heads(refs
, ref_count
, ref_map
);
606 const char *dangling_msg
= dry_run
607 ? _(" (%s will become dangling)")
608 : _(" (%s has become dangling)");
610 for (ref
= stale_refs
; ref
; ref
= ref
->next
) {
612 result
|= delete_ref(ref
->name
, NULL
, 0);
613 if (verbosity
>= 0) {
614 fprintf(stderr
, " x %-*s %-*s -> %s\n",
615 TRANSPORT_SUMMARY(_("[deleted]")),
616 REFCOL_WIDTH
, _("(none)"), prettify_refname(ref
->name
));
617 warn_dangling_symref(stderr
, dangling_msg
, ref
->name
);
620 free_refs(stale_refs
);
624 static int add_existing(const char *refname
, const unsigned char *sha1
,
625 int flag
, void *cbdata
)
627 struct string_list
*list
= (struct string_list
*)cbdata
;
628 struct string_list_item
*item
= string_list_insert(list
, refname
);
629 item
->util
= xmalloc(20);
630 hashcpy(item
->util
, sha1
);
634 static int will_fetch(struct ref
**head
, const unsigned char *sha1
)
636 struct ref
*rm
= *head
;
638 if (!hashcmp(rm
->old_sha1
, sha1
))
645 static void find_non_local_tags(struct transport
*transport
,
649 struct string_list existing_refs
= STRING_LIST_INIT_DUP
;
650 struct string_list remote_refs
= STRING_LIST_INIT_NODUP
;
651 const struct ref
*ref
;
652 struct string_list_item
*item
= NULL
;
654 for_each_ref(add_existing
, &existing_refs
);
655 for (ref
= transport_get_remote_refs(transport
); ref
; ref
= ref
->next
) {
656 if (prefixcmp(ref
->name
, "refs/tags/"))
660 * The peeled ref always follows the matching base
661 * ref, so if we see a peeled ref that we don't want
662 * to fetch then we can mark the ref entry in the list
663 * as one to ignore by setting util to NULL.
665 if (!suffixcmp(ref
->name
, "^{}")) {
666 if (item
&& !has_sha1_file(ref
->old_sha1
) &&
667 !will_fetch(head
, ref
->old_sha1
) &&
668 !has_sha1_file(item
->util
) &&
669 !will_fetch(head
, item
->util
))
676 * If item is non-NULL here, then we previously saw a
677 * ref not followed by a peeled reference, so we need
678 * to check if it is a lightweight tag that we want to
681 if (item
&& !has_sha1_file(item
->util
) &&
682 !will_fetch(head
, item
->util
))
687 /* skip duplicates and refs that we already have */
688 if (string_list_has_string(&remote_refs
, ref
->name
) ||
689 string_list_has_string(&existing_refs
, ref
->name
))
692 item
= string_list_insert(&remote_refs
, ref
->name
);
693 item
->util
= (void *)ref
->old_sha1
;
695 string_list_clear(&existing_refs
, 1);
698 * We may have a final lightweight tag that needs to be
699 * checked to see if it needs fetching.
701 if (item
&& !has_sha1_file(item
->util
) &&
702 !will_fetch(head
, item
->util
))
706 * For all the tags in the remote_refs string list,
707 * add them to the list of refs to be fetched
709 for_each_string_list_item(item
, &remote_refs
) {
710 /* Unless we have already decided to ignore this item... */
713 struct ref
*rm
= alloc_ref(item
->string
);
714 rm
->peer_ref
= alloc_ref(item
->string
);
715 hashcpy(rm
->old_sha1
, item
->util
);
721 string_list_clear(&remote_refs
, 0);
724 static void check_not_current_branch(struct ref
*ref_map
)
726 struct branch
*current_branch
= branch_get(NULL
);
728 if (is_bare_repository() || !current_branch
)
731 for (; ref_map
; ref_map
= ref_map
->next
)
732 if (ref_map
->peer_ref
&& !strcmp(current_branch
->refname
,
733 ref_map
->peer_ref
->name
))
734 die(_("Refusing to fetch into current branch %s "
735 "of non-bare repository"), current_branch
->refname
);
738 static int truncate_fetch_head(void)
740 char *filename
= git_path("FETCH_HEAD");
741 FILE *fp
= fopen(filename
, "w");
744 return error(_("cannot open %s: %s\n"), filename
, strerror(errno
));
749 static void set_option(struct transport
*transport
, const char *name
, const char *value
)
751 int r
= transport_set_option(transport
, name
, value
);
753 die(_("Option \"%s\" value \"%s\" is not valid for %s"),
754 name
, value
, transport
->url
);
756 warning(_("Option \"%s\" is ignored for %s\n"),
757 name
, transport
->url
);
760 static struct transport
*prepare_transport(struct remote
*remote
)
762 struct transport
*transport
;
763 transport
= transport_get(remote
, NULL
);
764 transport_set_verbosity(transport
, verbosity
, progress
);
766 set_option(transport
, TRANS_OPT_UPLOADPACK
, upload_pack
);
768 set_option(transport
, TRANS_OPT_KEEP
, "yes");
770 set_option(transport
, TRANS_OPT_DEPTH
, depth
);
774 static void backfill_tags(struct transport
*transport
, struct ref
*ref_map
)
776 if (transport
->cannot_reuse
) {
777 gsecondary
= prepare_transport(transport
->remote
);
778 transport
= gsecondary
;
781 transport_set_option(transport
, TRANS_OPT_FOLLOWTAGS
, NULL
);
782 transport_set_option(transport
, TRANS_OPT_DEPTH
, "0");
783 fetch_refs(transport
, ref_map
);
786 transport_disconnect(gsecondary
);
791 static int do_fetch(struct transport
*transport
,
792 struct refspec
*refs
, int ref_count
)
794 struct string_list existing_refs
= STRING_LIST_INIT_DUP
;
797 int autotags
= (transport
->remote
->fetch_tags
== 1);
800 for_each_ref(add_existing
, &existing_refs
);
802 if (tags
== TAGS_DEFAULT
) {
803 if (transport
->remote
->fetch_tags
== 2)
805 if (transport
->remote
->fetch_tags
== -1)
809 if (!transport
->get_refs_list
|| !transport
->fetch
)
810 die(_("Don't know how to fetch from %s"), transport
->url
);
812 /* if not appending, truncate FETCH_HEAD */
813 if (!append
&& !dry_run
) {
814 retcode
= truncate_fetch_head();
819 ref_map
= get_ref_map(transport
, refs
, ref_count
, tags
, &autotags
);
821 check_not_current_branch(ref_map
);
823 for (rm
= ref_map
; rm
; rm
= rm
->next
) {
825 struct string_list_item
*peer_item
=
826 string_list_lookup(&existing_refs
,
829 hashcpy(rm
->peer_ref
->old_sha1
,
834 if (tags
== TAGS_DEFAULT
&& autotags
)
835 transport_set_option(transport
, TRANS_OPT_FOLLOWTAGS
, "1");
836 if (fetch_refs(transport
, ref_map
)) {
843 * If --tags was specified, pretend that the user gave us
844 * the canonical tags refspec
846 if (tags
== TAGS_SET
) {
847 const char *tags_str
= "refs/tags/*:refs/tags/*";
848 struct refspec
*tags_refspec
, *refspec
;
850 /* Copy the refspec and add the tags to it */
851 refspec
= xcalloc(ref_count
+ 1, sizeof(struct refspec
));
852 tags_refspec
= parse_fetch_refspec(1, &tags_str
);
853 memcpy(refspec
, refs
, ref_count
* sizeof(struct refspec
));
854 memcpy(&refspec
[ref_count
], tags_refspec
, sizeof(struct refspec
));
857 prune_refs(refspec
, ref_count
, ref_map
);
860 /* The rest of the strings belong to fetch_one */
861 free_refspec(1, tags_refspec
);
863 } else if (ref_count
) {
864 prune_refs(refs
, ref_count
, ref_map
);
866 prune_refs(transport
->remote
->fetch
, transport
->remote
->fetch_refspec_nr
, ref_map
);
871 /* if neither --no-tags nor --tags was specified, do automated tag
873 if (tags
== TAGS_DEFAULT
&& autotags
) {
874 struct ref
**tail
= &ref_map
;
876 find_non_local_tags(transport
, &ref_map
, &tail
);
878 backfill_tags(transport
, ref_map
);
883 string_list_clear(&existing_refs
, 1);
887 static int get_one_remote_for_fetch(struct remote
*remote
, void *priv
)
889 struct string_list
*list
= priv
;
890 if (!remote
->skip_default_update
)
891 string_list_append(list
, remote
->name
);
895 struct remote_group_data
{
897 struct string_list
*list
;
900 static int get_remote_group(const char *key
, const char *value
, void *priv
)
902 struct remote_group_data
*g
= priv
;
904 if (!prefixcmp(key
, "remotes.") &&
905 !strcmp(key
+ 8, g
->name
)) {
906 /* split list by white space */
907 int space
= strcspn(value
, " \t\n");
910 string_list_append(g
->list
,
911 xstrndup(value
, space
));
913 value
+= space
+ (value
[space
] != '\0');
914 space
= strcspn(value
, " \t\n");
921 static int add_remote_or_group(const char *name
, struct string_list
*list
)
923 int prev_nr
= list
->nr
;
924 struct remote_group_data g
;
925 g
.name
= name
; g
.list
= list
;
927 git_config(get_remote_group
, &g
);
928 if (list
->nr
== prev_nr
) {
929 struct remote
*remote
;
930 if (!remote_is_configured(name
))
932 remote
= remote_get(name
);
933 string_list_append(list
, remote
->name
);
938 static void add_options_to_argv(struct argv_array
*argv
)
941 argv_array_push(argv
, "--dry-run");
943 argv_array_push(argv
, "--prune");
945 argv_array_push(argv
, "--update-head-ok");
947 argv_array_push(argv
, "--force");
949 argv_array_push(argv
, "--keep");
950 if (recurse_submodules
== RECURSE_SUBMODULES_ON
)
951 argv_array_push(argv
, "--recurse-submodules");
952 else if (recurse_submodules
== RECURSE_SUBMODULES_ON_DEMAND
)
953 argv_array_push(argv
, "--recurse-submodules=on-demand");
954 if (tags
== TAGS_SET
)
955 argv_array_push(argv
, "--tags");
956 else if (tags
== TAGS_UNSET
)
957 argv_array_push(argv
, "--no-tags");
959 argv_array_push(argv
, "-v");
961 argv_array_push(argv
, "-v");
962 else if (verbosity
< 0)
963 argv_array_push(argv
, "-q");
967 static int fetch_multiple(struct string_list
*list
)
970 struct argv_array argv
= ARGV_ARRAY_INIT
;
972 if (!append
&& !dry_run
) {
973 int errcode
= truncate_fetch_head();
978 argv_array_pushl(&argv
, "fetch", "--append", NULL
);
979 add_options_to_argv(&argv
);
981 for (i
= 0; i
< list
->nr
; i
++) {
982 const char *name
= list
->items
[i
].string
;
983 argv_array_push(&argv
, name
);
985 printf(_("Fetching %s\n"), name
);
986 if (run_command_v_opt(argv
.argv
, RUN_GIT_CMD
)) {
987 error(_("Could not fetch %s"), name
);
990 argv_array_pop(&argv
);
993 argv_array_clear(&argv
);
997 static int fetch_one(struct remote
*remote
, int argc
, const char **argv
)
1000 static const char **refs
= NULL
;
1001 struct refspec
*refspec
;
1006 die(_("No remote repository specified. Please, specify either a URL or a\n"
1007 "remote name from which new revisions should be fetched."));
1009 gtransport
= prepare_transport(remote
);
1012 /* no command line request */
1013 if (0 <= gtransport
->remote
->prune
)
1014 prune
= gtransport
->remote
->prune
;
1015 else if (0 <= fetch_prune_config
)
1016 prune
= fetch_prune_config
;
1018 prune
= PRUNE_BY_DEFAULT
;
1023 refs
= xcalloc(argc
+ 1, sizeof(const char *));
1024 for (i
= 0; i
< argc
; i
++) {
1025 if (!strcmp(argv
[i
], "tag")) {
1029 die(_("You need to specify a tag name."));
1030 ref
= xmalloc(strlen(argv
[i
]) * 2 + 22);
1031 strcpy(ref
, "refs/tags/");
1032 strcat(ref
, argv
[i
]);
1033 strcat(ref
, ":refs/tags/");
1034 strcat(ref
, argv
[i
]);
1037 refs
[j
++] = argv
[i
];
1043 sigchain_push_common(unlock_pack_on_signal
);
1044 atexit(unlock_pack
);
1045 refspec
= parse_fetch_refspec(ref_nr
, refs
);
1046 exit_code
= do_fetch(gtransport
, refspec
, ref_nr
);
1047 free_refspec(ref_nr
, refspec
);
1048 transport_disconnect(gtransport
);
1053 int cmd_fetch(int argc
, const char **argv
, const char *prefix
)
1056 struct string_list list
= STRING_LIST_INIT_NODUP
;
1057 struct remote
*remote
;
1059 static const char *argv_gc_auto
[] = {
1060 "gc", "--auto", NULL
,
1063 packet_trace_identity("fetch");
1065 /* Record the command line for the reflog */
1066 strbuf_addstr(&default_rla
, "fetch");
1067 for (i
= 1; i
< argc
; i
++)
1068 strbuf_addf(&default_rla
, " %s", argv
[i
]);
1070 git_config(git_fetch_config
, NULL
);
1072 argc
= parse_options(argc
, argv
, prefix
,
1073 builtin_fetch_options
, builtin_fetch_usage
, 0);
1077 die(_("--depth and --unshallow cannot be used together"));
1078 else if (!is_repository_shallow())
1079 die(_("--unshallow on a complete repository does not make sense"));
1081 static char inf_depth
[12];
1082 sprintf(inf_depth
, "%d", INFINITE_DEPTH
);
1087 if (recurse_submodules
!= RECURSE_SUBMODULES_OFF
) {
1088 if (recurse_submodules_default
) {
1089 int arg
= parse_fetch_recurse_submodules_arg("--recurse-submodules-default", recurse_submodules_default
);
1090 set_config_fetch_recurse_submodules(arg
);
1092 gitmodules_config();
1093 git_config(submodule_config
, NULL
);
1098 die(_("fetch --all does not take a repository argument"));
1100 die(_("fetch --all does not make sense with refspecs"));
1101 (void) for_each_remote(get_one_remote_for_fetch
, &list
);
1102 result
= fetch_multiple(&list
);
1103 } else if (argc
== 0) {
1104 /* No arguments -- use default remote */
1105 remote
= remote_get(NULL
);
1106 result
= fetch_one(remote
, argc
, argv
);
1107 } else if (multiple
) {
1108 /* All arguments are assumed to be remotes or groups */
1109 for (i
= 0; i
< argc
; i
++)
1110 if (!add_remote_or_group(argv
[i
], &list
))
1111 die(_("No such remote or remote group: %s"), argv
[i
]);
1112 result
= fetch_multiple(&list
);
1114 /* Single remote or group */
1115 (void) add_remote_or_group(argv
[0], &list
);
1117 /* More than one remote */
1119 die(_("Fetching a group and specifying refspecs does not make sense"));
1120 result
= fetch_multiple(&list
);
1122 /* Zero or one remotes */
1123 remote
= remote_get(argv
[0]);
1124 result
= fetch_one(remote
, argc
-1, argv
+1);
1128 if (!result
&& (recurse_submodules
!= RECURSE_SUBMODULES_OFF
)) {
1129 struct argv_array options
= ARGV_ARRAY_INIT
;
1131 add_options_to_argv(&options
);
1132 result
= fetch_populated_submodules(&options
,
1136 argv_array_clear(&options
);
1139 /* All names were strdup()ed or strndup()ed */
1140 list
.strdup_strings
= 1;
1141 string_list_clear(&list
, 0);
1143 run_command_v_opt(argv_gc_auto
, RUN_GIT_CMD
);