9 #include "string-list.h"
10 #include "mergesort.h"
12 enum map_direction
{ FROM_SRC
, FROM_DST
};
14 static struct refspec s_tag_refspec
= {
22 const struct refspec
*tag_refspec
= &s_tag_refspec
;
24 struct counted_string
{
31 struct counted_string
*instead_of
;
36 struct rewrite
**rewrite
;
41 static struct remote
**remotes
;
42 static int remotes_alloc
;
43 static int remotes_nr
;
45 static struct branch
**branches
;
46 static int branches_alloc
;
47 static int branches_nr
;
49 static struct branch
*current_branch
;
50 static const char *default_remote_name
;
51 static int explicit_default_remote_name
;
53 static struct rewrites rewrites
;
54 static struct rewrites rewrites_push
;
56 #define BUF_SIZE (2048)
57 static char buffer
[BUF_SIZE
];
59 static int valid_remote(const struct remote
*remote
)
61 return (!!remote
->url
) || (!!remote
->foreign_vcs
);
64 static const char *alias_url(const char *url
, struct rewrites
*r
)
68 struct counted_string
*longest
;
73 for (i
= 0; i
< r
->rewrite_nr
; i
++) {
76 for (j
= 0; j
< r
->rewrite
[i
]->instead_of_nr
; j
++) {
77 if (!prefixcmp(url
, r
->rewrite
[i
]->instead_of
[j
].s
) &&
79 longest
->len
< r
->rewrite
[i
]->instead_of
[j
].len
)) {
80 longest
= &(r
->rewrite
[i
]->instead_of
[j
]);
88 ret
= xmalloc(r
->rewrite
[longest_i
]->baselen
+
89 (strlen(url
) - longest
->len
) + 1);
90 strcpy(ret
, r
->rewrite
[longest_i
]->base
);
91 strcpy(ret
+ r
->rewrite
[longest_i
]->baselen
, url
+ longest
->len
);
95 static void add_push_refspec(struct remote
*remote
, const char *ref
)
97 ALLOC_GROW(remote
->push_refspec
,
98 remote
->push_refspec_nr
+ 1,
99 remote
->push_refspec_alloc
);
100 remote
->push_refspec
[remote
->push_refspec_nr
++] = ref
;
103 static void add_fetch_refspec(struct remote
*remote
, const char *ref
)
105 ALLOC_GROW(remote
->fetch_refspec
,
106 remote
->fetch_refspec_nr
+ 1,
107 remote
->fetch_refspec_alloc
);
108 remote
->fetch_refspec
[remote
->fetch_refspec_nr
++] = ref
;
111 static void add_url(struct remote
*remote
, const char *url
, const char *fromurl
)
113 ALLOC_GROW(remote
->url
, remote
->url_nr
+ 1, remote
->url_alloc
);
114 ALLOC_GROW(remote
->fromurl
, remote
->url_nr
+ 1, remote
->fromurl_alloc
);
115 remote
->url
[remote
->url_nr
++] = url
;
116 remote
->fromurl
[remote
->url_nr
] = fromurl
;
117 printf("added url %s (from %s)\n", url
, fromurl
? fromurl
: "");
120 static void add_pushurl(struct remote
*remote
, const char *pushurl
, const char *fromurl
)
122 ALLOC_GROW(remote
->pushurl
, remote
->pushurl_nr
+ 1, remote
->pushurl_alloc
);
123 ALLOC_GROW(remote
->frompushurl
, remote
->pushurl_nr
+ 1, remote
->frompushurl_alloc
);
124 remote
->pushurl
[remote
->pushurl_nr
++] = pushurl
;
125 remote
->frompushurl
[remote
->pushurl_nr
] = fromurl
;
126 printf("added pushurl %s (from %s)\n", pushurl
, fromurl
? fromurl
: "");
129 static void add_pushurl_alias(struct remote
*remote
, const char *url
)
131 const char *pushurl
= alias_url(url
, &rewrites_push
);
133 add_pushurl(remote
, pushurl
, url
);
136 static void add_url_alias(struct remote
*remote
, const char *url
)
138 add_url(remote
, alias_url(url
, &rewrites
), url
);
139 add_pushurl_alias(remote
, url
);
142 static struct remote
*make_remote(const char *name
, int len
)
147 for (i
= 0; i
< remotes_nr
; i
++) {
148 if (len
? (!strncmp(name
, remotes
[i
]->name
, len
) &&
149 !remotes
[i
]->name
[len
]) :
150 !strcmp(name
, remotes
[i
]->name
))
154 ret
= xcalloc(1, sizeof(struct remote
));
155 ALLOC_GROW(remotes
, remotes_nr
+ 1, remotes_alloc
);
156 remotes
[remotes_nr
++] = ret
;
158 ret
->name
= xstrndup(name
, len
);
160 ret
->name
= xstrdup(name
);
164 static void add_merge(struct branch
*branch
, const char *name
)
166 ALLOC_GROW(branch
->merge_name
, branch
->merge_nr
+ 1,
167 branch
->merge_alloc
);
168 branch
->merge_name
[branch
->merge_nr
++] = name
;
171 static struct branch
*make_branch(const char *name
, int len
)
177 for (i
= 0; i
< branches_nr
; i
++) {
178 if (len
? (!strncmp(name
, branches
[i
]->name
, len
) &&
179 !branches
[i
]->name
[len
]) :
180 !strcmp(name
, branches
[i
]->name
))
184 ALLOC_GROW(branches
, branches_nr
+ 1, branches_alloc
);
185 ret
= xcalloc(1, sizeof(struct branch
));
186 branches
[branches_nr
++] = ret
;
188 ret
->name
= xstrndup(name
, len
);
190 ret
->name
= xstrdup(name
);
191 refname
= xmalloc(strlen(name
) + strlen("refs/heads/") + 1);
192 strcpy(refname
, "refs/heads/");
193 strcpy(refname
+ strlen("refs/heads/"), ret
->name
);
194 ret
->refname
= refname
;
199 static struct rewrite
*make_rewrite(struct rewrites
*r
, const char *base
, int len
)
204 for (i
= 0; i
< r
->rewrite_nr
; i
++) {
206 ? (len
== r
->rewrite
[i
]->baselen
&&
207 !strncmp(base
, r
->rewrite
[i
]->base
, len
))
208 : !strcmp(base
, r
->rewrite
[i
]->base
))
209 return r
->rewrite
[i
];
212 ALLOC_GROW(r
->rewrite
, r
->rewrite_nr
+ 1, r
->rewrite_alloc
);
213 ret
= xcalloc(1, sizeof(struct rewrite
));
214 r
->rewrite
[r
->rewrite_nr
++] = ret
;
216 ret
->base
= xstrndup(base
, len
);
220 ret
->base
= xstrdup(base
);
221 ret
->baselen
= strlen(base
);
226 static void add_instead_of(struct rewrite
*rewrite
, const char *instead_of
)
228 ALLOC_GROW(rewrite
->instead_of
, rewrite
->instead_of_nr
+ 1, rewrite
->instead_of_alloc
);
229 rewrite
->instead_of
[rewrite
->instead_of_nr
].s
= instead_of
;
230 rewrite
->instead_of
[rewrite
->instead_of_nr
].len
= strlen(instead_of
);
231 rewrite
->instead_of_nr
++;
234 static void read_remotes_file(struct remote
*remote
)
236 FILE *f
= fopen(git_path("remotes/%s", remote
->name
), "r");
240 remote
->origin
= REMOTE_REMOTES
;
241 while (fgets(buffer
, BUF_SIZE
, f
)) {
245 if (!prefixcmp(buffer
, "URL:")) {
248 } else if (!prefixcmp(buffer
, "Push:")) {
251 } else if (!prefixcmp(buffer
, "Pull:")) {
263 while (isspace(p
[-1]))
266 switch (value_list
) {
268 add_url_alias(remote
, xstrdup(s
));
271 add_push_refspec(remote
, xstrdup(s
));
274 add_fetch_refspec(remote
, xstrdup(s
));
281 static void read_branches_file(struct remote
*remote
)
283 const char *slash
= strchr(remote
->name
, '/');
285 struct strbuf branch
= STRBUF_INIT
;
286 int n
= slash
? slash
- remote
->name
: 1000;
287 FILE *f
= fopen(git_path("branches/%.*s", n
, remote
->name
), "r");
293 s
= fgets(buffer
, BUF_SIZE
, f
);
301 remote
->origin
= REMOTE_BRANCHES
;
303 while (isspace(p
[-1]))
307 len
+= strlen(slash
);
308 p
= xmalloc(len
+ 1);
314 * With "slash", e.g. "git fetch jgarzik/netdev-2.6" when
315 * reading from $GIT_DIR/branches/jgarzik fetches "HEAD" from
316 * the partial URL obtained from the branches file plus
317 * "/netdev-2.6" and does not store it in any tracking ref.
318 * #branch specifier in the file is ignored.
320 * Otherwise, the branches file would have URL and optionally
321 * #branch specified. The "master" (or specified) branch is
322 * fetched and stored in the local branch of the same name.
324 frag
= strchr(p
, '#');
327 strbuf_addf(&branch
, "refs/heads/%s", frag
);
329 strbuf_addstr(&branch
, "refs/heads/master");
331 strbuf_addf(&branch
, ":refs/heads/%s", remote
->name
);
333 strbuf_reset(&branch
);
334 strbuf_addstr(&branch
, "HEAD:");
336 add_url_alias(remote
, p
);
337 add_fetch_refspec(remote
, strbuf_detach(&branch
, NULL
));
339 * Cogito compatible push: push current HEAD to remote #branch
340 * (master if missing)
342 strbuf_init(&branch
, 0);
343 strbuf_addstr(&branch
, "HEAD");
345 strbuf_addf(&branch
, ":refs/heads/%s", frag
);
347 strbuf_addstr(&branch
, ":refs/heads/master");
348 add_push_refspec(remote
, strbuf_detach(&branch
, NULL
));
349 remote
->fetch_tags
= 1; /* always auto-follow */
352 static int handle_config(const char *key
, const char *value
, void *cb
)
356 struct remote
*remote
;
357 struct branch
*branch
;
358 if (!prefixcmp(key
, "branch.")) {
360 subkey
= strrchr(name
, '.');
363 branch
= make_branch(name
, subkey
- name
);
364 if (!strcmp(subkey
, ".remote")) {
366 return config_error_nonbool(key
);
367 branch
->remote_name
= xstrdup(value
);
368 if (branch
== current_branch
) {
369 default_remote_name
= branch
->remote_name
;
370 explicit_default_remote_name
= 1;
372 } else if (!strcmp(subkey
, ".merge")) {
374 return config_error_nonbool(key
);
375 add_merge(branch
, xstrdup(value
));
379 if (!prefixcmp(key
, "url.")) {
380 struct rewrite
*rewrite
;
382 subkey
= strrchr(name
, '.');
385 if (!strcmp(subkey
, ".insteadof")) {
386 rewrite
= make_rewrite(&rewrites
, name
, subkey
- name
);
388 return config_error_nonbool(key
);
389 add_instead_of(rewrite
, xstrdup(value
));
390 } else if (!strcmp(subkey
, ".pushinsteadof")) {
391 rewrite
= make_rewrite(&rewrites_push
, name
, subkey
- name
);
393 return config_error_nonbool(key
);
394 add_instead_of(rewrite
, xstrdup(value
));
397 if (prefixcmp(key
, "remote."))
401 warning("Config remote shorthand cannot begin with '/': %s",
405 subkey
= strrchr(name
, '.');
408 remote
= make_remote(name
, subkey
- name
);
409 remote
->origin
= REMOTE_CONFIG
;
410 if (!strcmp(subkey
, ".mirror"))
411 remote
->mirror
= git_config_bool(key
, value
);
412 else if (!strcmp(subkey
, ".skipdefaultupdate"))
413 remote
->skip_default_update
= git_config_bool(key
, value
);
414 else if (!strcmp(subkey
, ".skipfetchall"))
415 remote
->skip_default_update
= git_config_bool(key
, value
);
416 else if (!strcmp(subkey
, ".url")) {
418 if (git_config_string(&v
, key
, value
))
420 add_url(remote
, v
, NULL
);
421 } else if (!strcmp(subkey
, ".pushurl")) {
423 if (git_config_string(&v
, key
, value
))
425 add_pushurl(remote
, v
, NULL
);
426 } else if (!strcmp(subkey
, ".push")) {
428 if (git_config_string(&v
, key
, value
))
430 add_push_refspec(remote
, v
);
431 } else if (!strcmp(subkey
, ".fetch")) {
433 if (git_config_string(&v
, key
, value
))
435 add_fetch_refspec(remote
, v
);
436 } else if (!strcmp(subkey
, ".receivepack")) {
438 if (git_config_string(&v
, key
, value
))
440 if (!remote
->receivepack
)
441 remote
->receivepack
= v
;
443 error("more than one receivepack given, using the first");
444 } else if (!strcmp(subkey
, ".uploadpack")) {
446 if (git_config_string(&v
, key
, value
))
448 if (!remote
->uploadpack
)
449 remote
->uploadpack
= v
;
451 error("more than one uploadpack given, using the first");
452 } else if (!strcmp(subkey
, ".tagopt")) {
453 if (!strcmp(value
, "--no-tags"))
454 remote
->fetch_tags
= -1;
455 else if (!strcmp(value
, "--tags"))
456 remote
->fetch_tags
= 2;
457 } else if (!strcmp(subkey
, ".proxy")) {
458 return git_config_string((const char **)&remote
->http_proxy
,
460 } else if (!strcmp(subkey
, ".vcs")) {
461 return git_config_string(&remote
->foreign_vcs
, key
, value
);
466 static void alias_all_urls(void)
469 for (i
= 0; i
< remotes_nr
; i
++) {
470 int add_pushurl_aliases
;
473 for (j
= 0; j
< remotes
[i
]->pushurl_nr
; j
++) {
474 remotes
[i
]->pushurl
[j
] = alias_url(remotes
[i
]->pushurl
[j
], &rewrites
);
476 add_pushurl_aliases
= remotes
[i
]->pushurl_nr
== 0;
477 for (j
= 0; j
< remotes
[i
]->url_nr
; j
++) {
478 if (add_pushurl_aliases
)
479 add_pushurl_alias(remotes
[i
], remotes
[i
]->url
[j
]);
480 remotes
[i
]->url
[j
] = alias_url(remotes
[i
]->url
[j
], &rewrites
);
485 static void read_config(void)
487 unsigned char sha1
[20];
488 const char *head_ref
;
490 if (default_remote_name
) /* did this already */
492 default_remote_name
= xstrdup("origin");
493 current_branch
= NULL
;
494 head_ref
= resolve_ref_unsafe("HEAD", sha1
, 0, &flag
);
495 if (head_ref
&& (flag
& REF_ISSYMREF
) &&
496 !prefixcmp(head_ref
, "refs/heads/")) {
498 make_branch(head_ref
+ strlen("refs/heads/"), 0);
500 git_config(handle_config
, NULL
);
505 * This function frees a refspec array.
506 * Warning: code paths should be checked to ensure that the src
507 * and dst pointers are always freeable pointers as well
508 * as the refspec pointer itself.
510 static void free_refspecs(struct refspec
*refspec
, int nr_refspec
)
517 for (i
= 0; i
< nr_refspec
; i
++) {
518 free(refspec
[i
].src
);
519 free(refspec
[i
].dst
);
524 static struct refspec
*parse_refspec_internal(int nr_refspec
, const char **refspec
, int fetch
, int verify
)
527 struct refspec
*rs
= xcalloc(sizeof(*rs
), nr_refspec
);
529 for (i
= 0; i
< nr_refspec
; i
++) {
532 const char *lhs
, *rhs
;
543 rhs
= strrchr(lhs
, ':');
546 * Before going on, special case ":" (or "+:") as a refspec
549 if (!fetch
&& rhs
== lhs
&& rhs
[1] == '\0') {
555 size_t rlen
= strlen(++rhs
);
556 is_glob
= (1 <= rlen
&& strchr(rhs
, '*'));
557 rs
[i
].dst
= xstrndup(rhs
, rlen
);
560 llen
= (rhs
? (rhs
- lhs
- 1) : strlen(lhs
));
561 if (1 <= llen
&& memchr(lhs
, '*', llen
)) {
562 if ((rhs
&& !is_glob
) || (!rhs
&& fetch
))
565 } else if (rhs
&& is_glob
) {
569 rs
[i
].pattern
= is_glob
;
570 rs
[i
].src
= xstrndup(lhs
, llen
);
571 flags
= REFNAME_ALLOW_ONELEVEL
| (is_glob
? REFNAME_REFSPEC_PATTERN
: 0);
576 * - empty is allowed; it means HEAD.
577 * - otherwise it must be a valid looking ref.
581 else if (check_refname_format(rs
[i
].src
, flags
))
585 * - missing is ok, and is same as empty.
586 * - empty is ok; it means not to store.
587 * - otherwise it must be a valid looking ref.
591 else if (!*rs
[i
].dst
)
593 else if (check_refname_format(rs
[i
].dst
, flags
))
598 * - empty is allowed; it means delete.
599 * - when wildcarded, it must be a valid looking ref.
600 * - otherwise, it must be an extended SHA-1, but
601 * there is no existing way to validate this.
606 if (check_refname_format(rs
[i
].src
, flags
))
610 ; /* anything goes, for now */
613 * - missing is allowed, but LHS then must be a
615 * - empty is not allowed.
616 * - otherwise it must be a valid looking ref.
619 if (check_refname_format(rs
[i
].src
, flags
))
621 } else if (!*rs
[i
].dst
) {
624 if (check_refname_format(rs
[i
].dst
, flags
))
634 * nr_refspec must be greater than zero and i must be valid
635 * since it is only possible to reach this point from within
636 * the for loop above.
638 free_refspecs(rs
, i
+1);
641 die("Invalid refspec '%s'", refspec
[i
]);
644 int valid_fetch_refspec(const char *fetch_refspec_str
)
646 struct refspec
*refspec
;
648 refspec
= parse_refspec_internal(1, &fetch_refspec_str
, 1, 1);
649 free_refspecs(refspec
, 1);
653 struct refspec
*parse_fetch_refspec(int nr_refspec
, const char **refspec
)
655 return parse_refspec_internal(nr_refspec
, refspec
, 1, 0);
658 static struct refspec
*parse_push_refspec(int nr_refspec
, const char **refspec
)
660 return parse_refspec_internal(nr_refspec
, refspec
, 0, 0);
663 void free_refspec(int nr_refspec
, struct refspec
*refspec
)
666 for (i
= 0; i
< nr_refspec
; i
++) {
667 free(refspec
[i
].src
);
668 free(refspec
[i
].dst
);
673 static int valid_remote_nick(const char *name
)
675 if (!name
[0] || is_dot_or_dotdot(name
))
677 return !strchr(name
, '/'); /* no slash */
680 struct remote
*remote_get(const char *name
)
689 name
= default_remote_name
;
690 name_given
= explicit_default_remote_name
;
693 ret
= make_remote(name
, 0);
694 if (valid_remote_nick(name
)) {
695 if (!valid_remote(ret
))
696 read_remotes_file(ret
);
697 if (!valid_remote(ret
))
698 read_branches_file(ret
);
700 if (name_given
&& !valid_remote(ret
))
701 add_url_alias(ret
, name
);
702 if (!valid_remote(ret
))
704 ret
->fetch
= parse_fetch_refspec(ret
->fetch_refspec_nr
, ret
->fetch_refspec
);
705 ret
->push
= parse_push_refspec(ret
->push_refspec_nr
, ret
->push_refspec
);
709 int remote_is_configured(const char *name
)
714 for (i
= 0; i
< remotes_nr
; i
++)
715 if (!strcmp(name
, remotes
[i
]->name
))
720 int for_each_remote(each_remote_fn fn
, void *priv
)
724 for (i
= 0; i
< remotes_nr
&& !result
; i
++) {
725 struct remote
*r
= remotes
[i
];
729 r
->fetch
= parse_fetch_refspec(r
->fetch_refspec_nr
,
732 r
->push
= parse_push_refspec(r
->push_refspec_nr
,
734 result
= fn(r
, priv
);
739 void ref_remove_duplicates(struct ref
*ref_map
)
741 struct string_list refs
= STRING_LIST_INIT_NODUP
;
742 struct string_list_item
*item
= NULL
;
743 struct ref
*prev
= NULL
, *next
= NULL
;
744 for (; ref_map
; prev
= ref_map
, ref_map
= next
) {
745 next
= ref_map
->next
;
746 if (!ref_map
->peer_ref
)
749 item
= string_list_lookup(&refs
, ref_map
->peer_ref
->name
);
751 if (strcmp(((struct ref
*)item
->util
)->name
,
753 die("%s tracks both %s and %s",
754 ref_map
->peer_ref
->name
,
755 ((struct ref
*)item
->util
)->name
,
757 prev
->next
= ref_map
->next
;
758 free(ref_map
->peer_ref
);
760 ref_map
= prev
; /* skip this; we freed it */
764 item
= string_list_insert(&refs
, ref_map
->peer_ref
->name
);
765 item
->util
= ref_map
;
767 string_list_clear(&refs
, 0);
770 int remote_has_url(struct remote
*remote
, const char *url
)
773 for (i
= 0; i
< remote
->url_nr
; i
++) {
774 if (!strcmp(remote
->url
[i
], url
))
780 static int match_name_with_pattern(const char *key
, const char *name
,
781 const char *value
, char **result
)
783 const char *kstar
= strchr(key
, '*');
789 die("Key '%s' of pattern had no '*'", key
);
791 ksuffixlen
= strlen(kstar
+ 1);
792 namelen
= strlen(name
);
793 ret
= !strncmp(name
, key
, klen
) && namelen
>= klen
+ ksuffixlen
&&
794 !memcmp(name
+ namelen
- ksuffixlen
, kstar
+ 1, ksuffixlen
);
796 const char *vstar
= strchr(value
, '*');
800 die("Value '%s' of pattern has no '*'", value
);
801 vlen
= vstar
- value
;
802 vsuffixlen
= strlen(vstar
+ 1);
803 *result
= xmalloc(vlen
+ vsuffixlen
+
805 klen
- ksuffixlen
+ 1);
806 strncpy(*result
, value
, vlen
);
807 strncpy(*result
+ vlen
,
808 name
+ klen
, namelen
- klen
- ksuffixlen
);
809 strcpy(*result
+ vlen
+ namelen
- klen
- ksuffixlen
,
815 static int query_refspecs(struct refspec
*refs
, int ref_count
, struct refspec
*query
)
818 int find_src
= !query
->src
;
820 if (find_src
&& !query
->dst
)
821 return error("query_refspecs: need either src or dst");
823 for (i
= 0; i
< ref_count
; i
++) {
824 struct refspec
*refspec
= &refs
[i
];
825 const char *key
= find_src
? refspec
->dst
: refspec
->src
;
826 const char *value
= find_src
? refspec
->src
: refspec
->dst
;
827 const char *needle
= find_src
? query
->dst
: query
->src
;
828 char **result
= find_src
? &query
->src
: &query
->dst
;
832 if (refspec
->pattern
) {
833 if (match_name_with_pattern(key
, needle
, value
, result
)) {
834 query
->force
= refspec
->force
;
837 } else if (!strcmp(needle
, key
)) {
838 *result
= xstrdup(value
);
839 query
->force
= refspec
->force
;
846 char *apply_refspecs(struct refspec
*refspecs
, int nr_refspec
,
849 struct refspec query
;
851 memset(&query
, 0, sizeof(struct refspec
));
852 query
.src
= (char *)name
;
854 if (query_refspecs(refspecs
, nr_refspec
, &query
))
860 int remote_find_tracking(struct remote
*remote
, struct refspec
*refspec
)
862 return query_refspecs(remote
->fetch
, remote
->fetch_refspec_nr
, refspec
);
865 static struct ref
*alloc_ref_with_prefix(const char *prefix
, size_t prefixlen
,
868 size_t len
= strlen(name
);
869 struct ref
*ref
= xcalloc(1, sizeof(struct ref
) + prefixlen
+ len
+ 1);
870 memcpy(ref
->name
, prefix
, prefixlen
);
871 memcpy(ref
->name
+ prefixlen
, name
, len
);
875 struct ref
*alloc_ref(const char *name
)
877 return alloc_ref_with_prefix("", 0, name
);
880 struct ref
*copy_ref(const struct ref
*ref
)
886 len
= strlen(ref
->name
);
887 cpy
= xmalloc(sizeof(struct ref
) + len
+ 1);
888 memcpy(cpy
, ref
, sizeof(struct ref
) + len
+ 1);
890 cpy
->symref
= ref
->symref
? xstrdup(ref
->symref
) : NULL
;
891 cpy
->remote_status
= ref
->remote_status
? xstrdup(ref
->remote_status
) : NULL
;
892 cpy
->peer_ref
= copy_ref(ref
->peer_ref
);
896 struct ref
*copy_ref_list(const struct ref
*ref
)
898 struct ref
*ret
= NULL
;
899 struct ref
**tail
= &ret
;
901 *tail
= copy_ref(ref
);
903 tail
= &((*tail
)->next
);
908 static void free_ref(struct ref
*ref
)
912 free_ref(ref
->peer_ref
);
913 free(ref
->remote_status
);
918 void free_refs(struct ref
*ref
)
928 int ref_compare_name(const void *va
, const void *vb
)
930 const struct ref
*a
= va
, *b
= vb
;
931 return strcmp(a
->name
, b
->name
);
934 static void *ref_list_get_next(const void *a
)
936 return ((const struct ref
*)a
)->next
;
939 static void ref_list_set_next(void *a
, void *next
)
941 ((struct ref
*)a
)->next
= next
;
944 void sort_ref_list(struct ref
**l
, int (*cmp
)(const void *, const void *))
946 *l
= llist_mergesort(*l
, ref_list_get_next
, ref_list_set_next
, cmp
);
949 static int count_refspec_match(const char *pattern
,
951 struct ref
**matched_ref
)
953 int patlen
= strlen(pattern
);
954 struct ref
*matched_weak
= NULL
;
955 struct ref
*matched
= NULL
;
959 for (weak_match
= match
= 0; refs
; refs
= refs
->next
) {
960 char *name
= refs
->name
;
961 int namelen
= strlen(name
);
963 if (!refname_match(pattern
, name
, ref_rev_parse_rules
))
966 /* A match is "weak" if it is with refs outside
967 * heads or tags, and did not specify the pattern
968 * in full (e.g. "refs/remotes/origin/master") or at
969 * least from the toplevel (e.g. "remotes/origin/master");
970 * otherwise "git push $URL master" would result in
971 * ambiguity between remotes/origin/master and heads/master
972 * at the remote site.
974 if (namelen
!= patlen
&&
975 patlen
!= namelen
- 5 &&
976 prefixcmp(name
, "refs/heads/") &&
977 prefixcmp(name
, "refs/tags/")) {
978 /* We want to catch the case where only weak
979 * matches are found and there are multiple
980 * matches, and where more than one strong
981 * matches are found, as ambiguous. One
982 * strong match with zero or more weak matches
983 * are acceptable as a unique match.
994 *matched_ref
= matched_weak
;
998 *matched_ref
= matched
;
1003 static void tail_link_ref(struct ref
*ref
, struct ref
***tail
)
1011 static struct ref
*alloc_delete_ref(void)
1013 struct ref
*ref
= alloc_ref("(delete)");
1014 hashclr(ref
->new_sha1
);
1018 static struct ref
*try_explicit_object_name(const char *name
)
1020 unsigned char sha1
[20];
1024 return alloc_delete_ref();
1025 if (get_sha1(name
, sha1
))
1027 ref
= alloc_ref(name
);
1028 hashcpy(ref
->new_sha1
, sha1
);
1032 static struct ref
*make_linked_ref(const char *name
, struct ref
***tail
)
1034 struct ref
*ret
= alloc_ref(name
);
1035 tail_link_ref(ret
, tail
);
1039 static char *guess_ref(const char *name
, struct ref
*peer
)
1041 struct strbuf buf
= STRBUF_INIT
;
1042 unsigned char sha1
[20];
1044 const char *r
= resolve_ref_unsafe(peer
->name
, sha1
, 1, NULL
);
1048 if (!prefixcmp(r
, "refs/heads/"))
1049 strbuf_addstr(&buf
, "refs/heads/");
1050 else if (!prefixcmp(r
, "refs/tags/"))
1051 strbuf_addstr(&buf
, "refs/tags/");
1055 strbuf_addstr(&buf
, name
);
1056 return strbuf_detach(&buf
, NULL
);
1059 static int match_explicit(struct ref
*src
, struct ref
*dst
,
1060 struct ref
***dst_tail
,
1063 struct ref
*matched_src
, *matched_dst
;
1066 const char *dst_value
= rs
->dst
;
1069 if (rs
->pattern
|| rs
->matching
)
1072 matched_src
= matched_dst
= NULL
;
1073 switch (count_refspec_match(rs
->src
, src
, &matched_src
)) {
1078 /* The source could be in the get_sha1() format
1079 * not a reference name. :refs/other is a
1080 * way to delete 'other' ref at the remote end.
1082 matched_src
= try_explicit_object_name(rs
->src
);
1084 return error("src refspec %s does not match any.", rs
->src
);
1088 return error("src refspec %s matches more than one.", rs
->src
);
1092 unsigned char sha1
[20];
1095 dst_value
= resolve_ref_unsafe(matched_src
->name
, sha1
, 1, &flag
);
1097 ((flag
& REF_ISSYMREF
) &&
1098 prefixcmp(dst_value
, "refs/heads/")))
1099 die("%s cannot be resolved to branch.",
1103 switch (count_refspec_match(dst_value
, dst
, &matched_dst
)) {
1107 if (!memcmp(dst_value
, "refs/", 5))
1108 matched_dst
= make_linked_ref(dst_value
, dst_tail
);
1109 else if (is_null_sha1(matched_src
->new_sha1
))
1110 error("unable to delete '%s': remote ref does not exist",
1112 else if ((dst_guess
= guess_ref(dst_value
, matched_src
)))
1113 matched_dst
= make_linked_ref(dst_guess
, dst_tail
);
1115 error("unable to push to unqualified destination: %s\n"
1116 "The destination refspec neither matches an "
1117 "existing ref on the remote nor\n"
1118 "begins with refs/, and we are unable to "
1119 "guess a prefix based on the source ref.",
1124 error("dst refspec %s matches more than one.",
1130 if (matched_dst
->peer_ref
)
1131 return error("dst ref %s receives from more than one src.",
1134 matched_dst
->peer_ref
= copy_src
? copy_ref(matched_src
) : matched_src
;
1135 matched_dst
->force
= rs
->force
;
1140 static int match_explicit_refs(struct ref
*src
, struct ref
*dst
,
1141 struct ref
***dst_tail
, struct refspec
*rs
,
1145 for (i
= errs
= 0; i
< rs_nr
; i
++)
1146 errs
+= match_explicit(src
, dst
, dst_tail
, &rs
[i
]);
1150 static char *get_ref_match(const struct refspec
*rs
, int rs_nr
, const struct ref
*ref
,
1151 int send_mirror
, int direction
, const struct refspec
**ret_pat
)
1153 const struct refspec
*pat
;
1156 int matching_refs
= -1;
1157 for (i
= 0; i
< rs_nr
; i
++) {
1158 if (rs
[i
].matching
&&
1159 (matching_refs
== -1 || rs
[i
].force
)) {
1164 if (rs
[i
].pattern
) {
1165 const char *dst_side
= rs
[i
].dst
? rs
[i
].dst
: rs
[i
].src
;
1167 if (direction
== FROM_SRC
)
1168 match
= match_name_with_pattern(rs
[i
].src
, ref
->name
, dst_side
, &name
);
1170 match
= match_name_with_pattern(dst_side
, ref
->name
, rs
[i
].src
, &name
);
1177 if (matching_refs
== -1)
1180 pat
= rs
+ matching_refs
;
1181 if (pat
->matching
) {
1183 * "matching refs"; traditionally we pushed everything
1184 * including refs outside refs/heads/ hierarchy, but
1185 * that does not make much sense these days.
1187 if (!send_mirror
&& prefixcmp(ref
->name
, "refs/heads/"))
1189 name
= xstrdup(ref
->name
);
1196 static struct ref
**tail_ref(struct ref
**head
)
1198 struct ref
**tail
= head
;
1200 tail
= &((*tail
)->next
);
1205 * Given the set of refs the local repository has, the set of refs the
1206 * remote repository has, and the refspec used for push, determine
1207 * what remote refs we will update and with what value by setting
1208 * peer_ref (which object is being pushed) and force (if the push is
1209 * forced) in elements of "dst". The function may add new elements to
1210 * dst (e.g. pushing to a new branch, done in match_explicit_refs).
1212 int match_push_refs(struct ref
*src
, struct ref
**dst
,
1213 int nr_refspec
, const char **refspec
, int flags
)
1216 int send_all
= flags
& MATCH_REFS_ALL
;
1217 int send_mirror
= flags
& MATCH_REFS_MIRROR
;
1218 int send_prune
= flags
& MATCH_REFS_PRUNE
;
1220 static const char *default_refspec
[] = { ":", NULL
};
1221 struct ref
*ref
, **dst_tail
= tail_ref(dst
);
1225 refspec
= default_refspec
;
1227 rs
= parse_push_refspec(nr_refspec
, (const char **) refspec
);
1228 errs
= match_explicit_refs(src
, *dst
, &dst_tail
, rs
, nr_refspec
);
1230 /* pick the remainder */
1231 for (ref
= src
; ref
; ref
= ref
->next
) {
1232 struct ref
*dst_peer
;
1233 const struct refspec
*pat
= NULL
;
1239 dst_name
= get_ref_match(rs
, nr_refspec
, ref
, send_mirror
, FROM_SRC
, &pat
);
1243 dst_peer
= find_ref_by_name(*dst
, dst_name
);
1245 if (dst_peer
->peer_ref
)
1246 /* We're already sending something to this ref. */
1249 if (pat
->matching
&& !(send_all
|| send_mirror
))
1251 * Remote doesn't have it, and we have no
1252 * explicit pattern, and we don't have
1253 * --all nor --mirror.
1257 /* Create a new one and link it */
1258 dst_peer
= make_linked_ref(dst_name
, &dst_tail
);
1259 hashcpy(dst_peer
->new_sha1
, ref
->new_sha1
);
1261 dst_peer
->peer_ref
= copy_ref(ref
);
1262 dst_peer
->force
= pat
->force
;
1267 /* check for missing refs on the remote */
1268 for (ref
= *dst
; ref
; ref
= ref
->next
) {
1272 /* We're already sending something to this ref. */
1275 src_name
= get_ref_match(rs
, nr_refspec
, ref
, send_mirror
, FROM_DST
, NULL
);
1277 if (!find_ref_by_name(src
, src_name
))
1278 ref
->peer_ref
= alloc_delete_ref();
1288 static inline int is_forwardable(struct ref
* ref
)
1292 if (!prefixcmp(ref
->name
, "refs/tags/"))
1295 /* old object must be a commit */
1296 o
= parse_object(ref
->old_sha1
);
1297 if (!o
|| o
->type
!= OBJ_COMMIT
)
1300 /* new object must be commit-ish */
1301 o
= deref_tag(parse_object(ref
->new_sha1
), NULL
, 0);
1302 if (!o
|| o
->type
!= OBJ_COMMIT
)
1308 void set_ref_status_for_push(struct ref
*remote_refs
, int send_mirror
,
1313 for (ref
= remote_refs
; ref
; ref
= ref
->next
) {
1314 int force_ref_update
= ref
->force
|| force_update
;
1317 hashcpy(ref
->new_sha1
, ref
->peer_ref
->new_sha1
);
1318 else if (!send_mirror
)
1321 ref
->deletion
= is_null_sha1(ref
->new_sha1
);
1322 if (!ref
->deletion
&&
1323 !hashcmp(ref
->old_sha1
, ref
->new_sha1
)) {
1324 ref
->status
= REF_STATUS_UPTODATE
;
1329 * The below logic determines whether an individual
1330 * refspec A:B can be pushed. The push will succeed
1331 * if any of the following are true:
1333 * (1) the remote reference B does not exist
1335 * (2) the remote reference B is being removed (i.e.,
1336 * pushing :B where no source is specified)
1338 * (3) the update meets all fast-forwarding criteria:
1340 * (a) the destination is not under refs/tags/
1341 * (b) the old is a commit
1342 * (c) the new is a descendant of the old
1344 * NOTE: We must actually have the old object in
1345 * order to overwrite it in the remote reference,
1346 * and the new object must be commit-ish. These are
1347 * implied by (b) and (c) respectively.
1349 * (4) it is forced using the +A:B notation, or by
1350 * passing the --force argument
1353 ref
->not_forwardable
= !is_forwardable(ref
);
1357 !is_null_sha1(ref
->old_sha1
);
1360 ref
->nonfastforward
=
1361 !has_sha1_file(ref
->old_sha1
)
1362 || !ref_newer(ref
->new_sha1
, ref
->old_sha1
);
1364 if (ref
->not_forwardable
) {
1365 ref
->requires_force
= 1;
1366 if (!force_ref_update
) {
1367 ref
->status
= REF_STATUS_REJECT_ALREADY_EXISTS
;
1370 } else if (ref
->nonfastforward
) {
1371 ref
->requires_force
= 1;
1372 if (!force_ref_update
) {
1373 ref
->status
= REF_STATUS_REJECT_NONFASTFORWARD
;
1381 struct branch
*branch_get(const char *name
)
1386 if (!name
|| !*name
|| !strcmp(name
, "HEAD"))
1387 ret
= current_branch
;
1389 ret
= make_branch(name
, 0);
1390 if (ret
&& ret
->remote_name
) {
1391 ret
->remote
= remote_get(ret
->remote_name
);
1392 if (ret
->merge_nr
) {
1394 ret
->merge
= xcalloc(sizeof(*ret
->merge
),
1396 for (i
= 0; i
< ret
->merge_nr
; i
++) {
1397 ret
->merge
[i
] = xcalloc(1, sizeof(**ret
->merge
));
1398 ret
->merge
[i
]->src
= xstrdup(ret
->merge_name
[i
]);
1399 if (remote_find_tracking(ret
->remote
, ret
->merge
[i
])
1400 && !strcmp(ret
->remote_name
, "."))
1401 ret
->merge
[i
]->dst
= xstrdup(ret
->merge_name
[i
]);
1408 int branch_has_merge_config(struct branch
*branch
)
1410 return branch
&& !!branch
->merge
;
1413 int branch_merge_matches(struct branch
*branch
,
1415 const char *refname
)
1417 if (!branch
|| i
< 0 || i
>= branch
->merge_nr
)
1419 return refname_match(branch
->merge
[i
]->src
, refname
, ref_fetch_rules
);
1422 static int ignore_symref_update(const char *refname
)
1424 unsigned char sha1
[20];
1427 if (!resolve_ref_unsafe(refname
, sha1
, 0, &flag
))
1428 return 0; /* non-existing refs are OK */
1429 return (flag
& REF_ISSYMREF
);
1432 static struct ref
*get_expanded_map(const struct ref
*remote_refs
,
1433 const struct refspec
*refspec
)
1435 const struct ref
*ref
;
1436 struct ref
*ret
= NULL
;
1437 struct ref
**tail
= &ret
;
1441 for (ref
= remote_refs
; ref
; ref
= ref
->next
) {
1442 if (strchr(ref
->name
, '^'))
1443 continue; /* a dereference item */
1444 if (match_name_with_pattern(refspec
->src
, ref
->name
,
1445 refspec
->dst
, &expn_name
) &&
1446 !ignore_symref_update(expn_name
)) {
1447 struct ref
*cpy
= copy_ref(ref
);
1449 cpy
->peer_ref
= alloc_ref(expn_name
);
1452 cpy
->peer_ref
->force
= 1;
1461 static const struct ref
*find_ref_by_name_abbrev(const struct ref
*refs
, const char *name
)
1463 const struct ref
*ref
;
1464 for (ref
= refs
; ref
; ref
= ref
->next
) {
1465 if (refname_match(name
, ref
->name
, ref_fetch_rules
))
1471 struct ref
*get_remote_ref(const struct ref
*remote_refs
, const char *name
)
1473 const struct ref
*ref
= find_ref_by_name_abbrev(remote_refs
, name
);
1478 return copy_ref(ref
);
1481 static struct ref
*get_local_ref(const char *name
)
1483 if (!name
|| name
[0] == '\0')
1486 if (!prefixcmp(name
, "refs/"))
1487 return alloc_ref(name
);
1489 if (!prefixcmp(name
, "heads/") ||
1490 !prefixcmp(name
, "tags/") ||
1491 !prefixcmp(name
, "remotes/"))
1492 return alloc_ref_with_prefix("refs/", 5, name
);
1494 return alloc_ref_with_prefix("refs/heads/", 11, name
);
1497 int get_fetch_map(const struct ref
*remote_refs
,
1498 const struct refspec
*refspec
,
1502 struct ref
*ref_map
, **rmp
;
1504 if (refspec
->pattern
) {
1505 ref_map
= get_expanded_map(remote_refs
, refspec
);
1507 const char *name
= refspec
->src
[0] ? refspec
->src
: "HEAD";
1509 ref_map
= get_remote_ref(remote_refs
, name
);
1510 if (!missing_ok
&& !ref_map
)
1511 die("Couldn't find remote ref %s", name
);
1513 ref_map
->peer_ref
= get_local_ref(refspec
->dst
);
1514 if (ref_map
->peer_ref
&& refspec
->force
)
1515 ref_map
->peer_ref
->force
= 1;
1519 for (rmp
= &ref_map
; *rmp
; ) {
1520 if ((*rmp
)->peer_ref
) {
1521 if (prefixcmp((*rmp
)->peer_ref
->name
, "refs/") ||
1522 check_refname_format((*rmp
)->peer_ref
->name
, 0)) {
1523 struct ref
*ignore
= *rmp
;
1524 error("* Ignoring funny ref '%s' locally",
1525 (*rmp
)->peer_ref
->name
);
1526 *rmp
= (*rmp
)->next
;
1527 free(ignore
->peer_ref
);
1532 rmp
= &((*rmp
)->next
);
1536 tail_link_ref(ref_map
, tail
);
1541 int resolve_remote_symref(struct ref
*ref
, struct ref
*list
)
1545 for (; list
; list
= list
->next
)
1546 if (!strcmp(ref
->symref
, list
->name
)) {
1547 hashcpy(ref
->old_sha1
, list
->old_sha1
);
1553 static void unmark_and_free(struct commit_list
*list
, unsigned int mark
)
1556 struct commit_list
*temp
= list
;
1557 temp
->item
->object
.flags
&= ~mark
;
1563 int ref_newer(const unsigned char *new_sha1
, const unsigned char *old_sha1
)
1566 struct commit
*old
, *new;
1567 struct commit_list
*list
, *used
;
1570 /* Both new and old must be commit-ish and new is descendant of
1571 * old. Otherwise we require --force.
1573 o
= deref_tag(parse_object(old_sha1
), NULL
, 0);
1574 if (!o
|| o
->type
!= OBJ_COMMIT
)
1576 old
= (struct commit
*) o
;
1578 o
= deref_tag(parse_object(new_sha1
), NULL
, 0);
1579 if (!o
|| o
->type
!= OBJ_COMMIT
)
1581 new = (struct commit
*) o
;
1583 if (parse_commit(new) < 0)
1587 commit_list_insert(new, &list
);
1589 new = pop_most_recent_commit(&list
, TMP_MARK
);
1590 commit_list_insert(new, &used
);
1596 unmark_and_free(list
, TMP_MARK
);
1597 unmark_and_free(used
, TMP_MARK
);
1602 * Return true if there is anything to report, otherwise false.
1604 int stat_tracking_info(struct branch
*branch
, int *num_ours
, int *num_theirs
)
1606 unsigned char sha1
[20];
1607 struct commit
*ours
, *theirs
;
1609 struct rev_info revs
;
1610 const char *rev_argv
[10], *base
;
1614 * Nothing to report unless we are marked to build on top of
1618 !branch
->merge
|| !branch
->merge
[0] || !branch
->merge
[0]->dst
)
1622 * If what we used to build on no longer exists, there is
1623 * nothing to report.
1625 base
= branch
->merge
[0]->dst
;
1626 if (read_ref(base
, sha1
))
1628 theirs
= lookup_commit_reference(sha1
);
1632 if (read_ref(branch
->refname
, sha1
))
1634 ours
= lookup_commit_reference(sha1
);
1638 /* are we the same? */
1642 /* Run "rev-list --left-right ours...theirs" internally... */
1644 rev_argv
[rev_argc
++] = NULL
;
1645 rev_argv
[rev_argc
++] = "--left-right";
1646 rev_argv
[rev_argc
++] = symmetric
;
1647 rev_argv
[rev_argc
++] = "--";
1648 rev_argv
[rev_argc
] = NULL
;
1650 strcpy(symmetric
, sha1_to_hex(ours
->object
.sha1
));
1651 strcpy(symmetric
+ 40, "...");
1652 strcpy(symmetric
+ 43, sha1_to_hex(theirs
->object
.sha1
));
1654 init_revisions(&revs
, NULL
);
1655 setup_revisions(rev_argc
, rev_argv
, &revs
, NULL
);
1656 prepare_revision_walk(&revs
);
1658 /* ... and count the commits on each side. */
1662 struct commit
*c
= get_revision(&revs
);
1665 if (c
->object
.flags
& SYMMETRIC_LEFT
)
1671 /* clear object flags smudged by the above traversal */
1672 clear_commit_marks(ours
, ALL_REV_FLAGS
);
1673 clear_commit_marks(theirs
, ALL_REV_FLAGS
);
1678 * Return true when there is anything to report, otherwise false.
1680 int format_tracking_info(struct branch
*branch
, struct strbuf
*sb
)
1682 int num_ours
, num_theirs
;
1685 if (!stat_tracking_info(branch
, &num_ours
, &num_theirs
))
1688 base
= branch
->merge
[0]->dst
;
1689 base
= shorten_unambiguous_ref(base
, 0);
1692 Q_("Your branch is ahead of '%s' by %d commit.\n",
1693 "Your branch is ahead of '%s' by %d commits.\n",
1696 if (advice_status_hints
)
1698 _(" (use \"git push\" to publish your local commits)\n"));
1699 } else if (!num_ours
) {
1701 Q_("Your branch is behind '%s' by %d commit, "
1702 "and can be fast-forwarded.\n",
1703 "Your branch is behind '%s' by %d commits, "
1704 "and can be fast-forwarded.\n",
1707 if (advice_status_hints
)
1709 _(" (use \"git pull\" to update your local branch)\n"));
1712 Q_("Your branch and '%s' have diverged,\n"
1713 "and have %d and %d different commit each, "
1715 "Your branch and '%s' have diverged,\n"
1716 "and have %d and %d different commits each, "
1719 base
, num_ours
, num_theirs
);
1720 if (advice_status_hints
)
1722 _(" (use \"git pull\" to merge the remote branch into yours)\n"));
1727 static int one_local_ref(const char *refname
, const unsigned char *sha1
, int flag
, void *cb_data
)
1729 struct ref
***local_tail
= cb_data
;
1733 /* we already know it starts with refs/ to get here */
1734 if (check_refname_format(refname
+ 5, 0))
1737 len
= strlen(refname
) + 1;
1738 ref
= xcalloc(1, sizeof(*ref
) + len
);
1739 hashcpy(ref
->new_sha1
, sha1
);
1740 memcpy(ref
->name
, refname
, len
);
1742 *local_tail
= &ref
->next
;
1746 struct ref
*get_local_heads(void)
1748 struct ref
*local_refs
= NULL
, **local_tail
= &local_refs
;
1749 for_each_ref(one_local_ref
, &local_tail
);
1753 struct ref
*guess_remote_head(const struct ref
*head
,
1754 const struct ref
*refs
,
1757 const struct ref
*r
;
1758 struct ref
*list
= NULL
;
1759 struct ref
**tail
= &list
;
1765 * Some transports support directly peeking at
1766 * where HEAD points; if that is the case, then
1767 * we don't have to guess.
1770 return copy_ref(find_ref_by_name(refs
, head
->symref
));
1772 /* If refs/heads/master could be right, it is. */
1774 r
= find_ref_by_name(refs
, "refs/heads/master");
1775 if (r
&& !hashcmp(r
->old_sha1
, head
->old_sha1
))
1779 /* Look for another ref that points there */
1780 for (r
= refs
; r
; r
= r
->next
) {
1782 !prefixcmp(r
->name
, "refs/heads/") &&
1783 !hashcmp(r
->old_sha1
, head
->old_sha1
)) {
1784 *tail
= copy_ref(r
);
1785 tail
= &((*tail
)->next
);
1794 struct stale_heads_info
{
1795 struct string_list
*ref_names
;
1796 struct ref
**stale_refs_tail
;
1797 struct refspec
*refs
;
1801 static int get_stale_heads_cb(const char *refname
,
1802 const unsigned char *sha1
, int flags
, void *cb_data
)
1804 struct stale_heads_info
*info
= cb_data
;
1805 struct refspec query
;
1806 memset(&query
, 0, sizeof(struct refspec
));
1807 query
.dst
= (char *)refname
;
1809 if (query_refspecs(info
->refs
, info
->ref_count
, &query
))
1810 return 0; /* No matches */
1813 * If we did find a suitable refspec and it's not a symref and
1814 * it's not in the list of refs that currently exist in that
1815 * remote we consider it to be stale.
1817 if (!((flags
& REF_ISSYMREF
) ||
1818 string_list_has_string(info
->ref_names
, query
.src
))) {
1819 struct ref
*ref
= make_linked_ref(refname
, &info
->stale_refs_tail
);
1820 hashcpy(ref
->new_sha1
, sha1
);
1827 struct ref
*get_stale_heads(struct refspec
*refs
, int ref_count
, struct ref
*fetch_map
)
1829 struct ref
*ref
, *stale_refs
= NULL
;
1830 struct string_list ref_names
= STRING_LIST_INIT_NODUP
;
1831 struct stale_heads_info info
;
1832 info
.ref_names
= &ref_names
;
1833 info
.stale_refs_tail
= &stale_refs
;
1835 info
.ref_count
= ref_count
;
1836 for (ref
= fetch_map
; ref
; ref
= ref
->next
)
1837 string_list_append(&ref_names
, ref
->name
);
1838 sort_string_list(&ref_names
);
1839 for_each_ref(get_stale_heads_cb
, &info
);
1840 string_list_clear(&ref_names
, 0);