make the sender advertise shallow commits to the receiver
[git/git.git] / remote.h
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1#ifndef REMOTE_H
2#define REMOTE_H
3
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4#include "parse-options.h"
5
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6enum {
7 REMOTE_CONFIG,
8 REMOTE_REMOTES,
9 REMOTE_BRANCHES
10};
11
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12struct remote {
13 const char *name;
89cf4c70 14 int origin;
5751f490 15
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16 const char *foreign_vcs;
17
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18 const char **url;
19 int url_nr;
2d31347b 20 int url_alloc;
5751f490 21
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22 const char **pushurl;
23 int pushurl_nr;
24 int pushurl_alloc;
25
5751f490 26 const char **push_refspec;
6b62816c 27 struct refspec *push;
5751f490 28 int push_refspec_nr;
2d31347b 29 int push_refspec_alloc;
5751f490 30
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31 const char **fetch_refspec;
32 struct refspec *fetch;
33 int fetch_refspec_nr;
2d31347b 34 int fetch_refspec_alloc;
5d46c9d4 35
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36 /*
37 * -1 to never fetch tags
38 * 0 to auto-follow tags on heuristic (default)
39 * 1 to always auto-follow tags
40 * 2 to always fetch tags
41 */
42 int fetch_tags;
211c8968 43 int skip_default_update;
84bb2dfd 44 int mirror;
737c5a9c 45 int prune;
d71ab174 46
5751f490 47 const char *receivepack;
0012ba21 48 const char *uploadpack;
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49
50 /*
51 * for curl remotes only
52 */
53 char *http_proxy;
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54};
55
56struct remote *remote_get(const char *name);
f24f715e 57struct remote *pushremote_get(const char *name);
9a23ba33 58int remote_is_configured(const char *name);
5751f490 59
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60typedef int each_remote_fn(struct remote *remote, void *priv);
61int for_each_remote(each_remote_fn fn, void *priv);
62
28b91f8a 63int remote_has_url(struct remote *remote, const char *url);
5d46c9d4 64
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65struct refspec {
66 unsigned force : 1;
67 unsigned pattern : 1;
a83619d6 68 unsigned matching : 1;
6e7b66ee 69 unsigned exact_sha1 : 1;
6b62816c 70
b42f6927 71 char *src;
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72 char *dst;
73};
74
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75extern const struct refspec *tag_refspec;
76
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77struct ref {
78 struct ref *next;
79 unsigned char old_sha1[20];
80 unsigned char new_sha1[20];
91048a95 81 unsigned char old_sha1_expect[20]; /* used by expect-old */
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82 char *symref;
83 unsigned int
84 force:1,
85 forced_update:1,
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86 expect_old_sha1:1,
87 expect_old_no_trackback:1,
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88 deletion:1,
89 matched:1;
90
91 /*
92 * Order is important here, as we write to FETCH_HEAD
93 * in numeric order. And the default NOT_FOR_MERGE
94 * should be 0, so that xcalloc'd structures get it
95 * by default.
96 */
97 enum {
98 FETCH_HEAD_MERGE = -1,
99 FETCH_HEAD_NOT_FOR_MERGE = 0,
100 FETCH_HEAD_IGNORE = 1
101 } fetch_head_status;
102
103 enum {
104 REF_STATUS_NONE = 0,
105 REF_STATUS_OK,
106 REF_STATUS_REJECT_NONFASTFORWARD,
107 REF_STATUS_REJECT_ALREADY_EXISTS,
108 REF_STATUS_REJECT_NODELETE,
109 REF_STATUS_REJECT_FETCH_FIRST,
110 REF_STATUS_REJECT_NEEDS_FORCE,
631b5ef2 111 REF_STATUS_REJECT_STALE,
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112 REF_STATUS_UPTODATE,
113 REF_STATUS_REMOTE_REJECT,
114 REF_STATUS_EXPECTING_REPORT
115 } status;
116 char *remote_status;
117 struct ref *peer_ref; /* when renaming */
118 char name[FLEX_ARRAY]; /* more */
119};
120
121#define REF_NORMAL (1u << 0)
122#define REF_HEADS (1u << 1)
123#define REF_TAGS (1u << 2)
124
125extern struct ref *find_ref_by_name(const struct ref *list, const char *name);
126
59c69c0c 127struct ref *alloc_ref(const char *name);
59a57757 128struct ref *copy_ref(const struct ref *ref);
4577370e 129struct ref *copy_ref_list(const struct ref *ref);
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130void sort_ref_list(struct ref **, int (*cmp)(const void *, const void *));
131int ref_compare_name(const void *, const void *);
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132
133int check_ref_type(const struct ref *ref, int flags);
134
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135/*
136 * Frees the entire list and peers of elements.
137 */
138void free_refs(struct ref *ref);
139
13eb4626 140struct sha1_array;
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141extern struct ref **get_remote_heads(int in, char *src_buf, size_t src_len,
142 struct ref **list, unsigned int flags,
13eb4626 143 struct sha1_array *extra_have);
47a59185 144
be885d96 145int resolve_remote_symref(struct ref *ref, struct ref *list);
ec8452d5 146int ref_newer(const unsigned char *new_sha1, const unsigned char *old_sha1);
be885d96 147
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148/*
149 * Removes and frees any duplicate refs in the map.
150 */
151void ref_remove_duplicates(struct ref *ref_map);
152
24b6177e 153int valid_fetch_refspec(const char *refspec);
46220ca1 154struct refspec *parse_fetch_refspec(int nr_refspec, const char **refspec);
d71ab174 155
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156void free_refspec(int nr_refspec, struct refspec *refspec);
157
158char *apply_refspecs(struct refspec *refspecs, int nr_refspec,
159 const char *name);
160
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161int match_push_refs(struct ref *src, struct ref **dst,
162 int nr_refspec, const char **refspec, int all);
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163void set_ref_status_for_push(struct ref *remote_refs, int send_mirror,
164 int force_update);
6b62816c 165
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166/*
167 * Given a list of the remote refs and the specification of things to
168 * fetch, makes a (separate) list of the refs to fetch and the local
169 * refs to store into.
170 *
171 * *tail is the pointer to the tail pointer of the list of results
172 * beforehand, and will be set to the tail pointer of the list of
173 * results afterward.
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174 *
175 * missing_ok is usually false, but when we are adding branch.$name.merge
176 * it is Ok if the branch is not at the remote anymore.
d71ab174 177 */
4577370e 178int get_fetch_map(const struct ref *remote_refs, const struct refspec *refspec,
9ad7c5ae 179 struct ref ***tail, int missing_ok);
d71ab174 180
4577370e 181struct ref *get_remote_ref(const struct ref *remote_refs, const char *name);
d71ab174 182
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183/*
184 * For the given remote, reads the refspec's src and sets the other fields.
185 */
186int remote_find_tracking(struct remote *remote, struct refspec *refspec);
187
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188struct branch {
189 const char *name;
190 const char *refname;
191
192 const char *remote_name;
193 struct remote *remote;
194
195 const char **merge_name;
196 struct refspec **merge;
197 int merge_nr;
2d31347b 198 int merge_alloc;
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199};
200
201struct branch *branch_get(const char *name);
202
203int branch_has_merge_config(struct branch *branch);
85682c19 204int branch_merge_matches(struct branch *, int n, const char *);
cf818348 205
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206/* Flags to match_refs. */
207enum match_refs_flags {
208 MATCH_REFS_NONE = 0,
209 MATCH_REFS_ALL = (1 << 0),
6ddba5e2 210 MATCH_REFS_MIRROR = (1 << 1),
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211 MATCH_REFS_PRUNE = (1 << 2),
212 MATCH_REFS_FOLLOW_TAGS = (1 << 3)
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213};
214
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215/* Reporting of tracking info */
216int stat_tracking_info(struct branch *branch, int *num_ours, int *num_theirs);
217int format_tracking_info(struct branch *branch, struct strbuf *sb);
218
454e2025 219struct ref *get_local_heads(void);
8ef51733 220/*
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221 * Find refs from a list which are likely to be pointed to by the given HEAD
222 * ref. If 'all' is false, returns the most likely ref; otherwise, returns a
223 * list of all candidate refs. If no match is found (or 'head' is NULL),
224 * returns NULL. All returns are newly allocated and should be freed.
8ef51733 225 */
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226struct ref *guess_remote_head(const struct ref *head,
227 const struct ref *refs,
228 int all);
229
f2ef6075 230/* Return refs which no longer exist on remote */
ed43de6e 231struct ref *get_stale_heads(struct refspec *refs, int ref_count, struct ref *fetch_map);
f2ef6075 232
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233/*
234 * Compare-and-swap
235 */
236#define CAS_OPT_NAME "force-with-lease"
237
238struct push_cas_option {
239 unsigned use_tracking_for_rest:1;
240 struct push_cas {
241 unsigned char expect[20];
242 unsigned use_tracking:1;
243 char *refname;
244 } *entry;
245 int nr;
246 int alloc;
247};
248
249extern int parseopt_push_cas_option(const struct option *, const char *arg, int unset);
250extern int parse_push_cas_option(struct push_cas_option *, const char *arg, int unset);
251extern void clear_cas_option(struct push_cas_option *);
252
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253extern int is_empty_cas(const struct push_cas_option *);
254void apply_push_cas(struct push_cas_option *, struct remote *, struct ref *);
255
5751f490 256#endif