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9b288516 DB |
1 | #ifndef TRANSPORT_H |
2 | #define TRANSPORT_H | |
3 | ||
4 | #include "cache.h" | |
47a59185 | 5 | #include "run-command.h" |
9b288516 DB |
6 | #include "remote.h" |
7 | ||
aa5af974 IL |
8 | struct git_transport_options { |
9 | unsigned thin : 1; | |
10 | unsigned keep : 1; | |
11 | unsigned followtags : 1; | |
c6807a40 NTND |
12 | unsigned check_self_contained_and_connected : 1; |
13 | unsigned self_contained_and_connected : 1; | |
aa5af974 IL |
14 | int depth; |
15 | const char *uploadpack; | |
16 | const char *receivepack; | |
91048a95 | 17 | struct push_cas_option *cas; |
aa5af974 IL |
18 | }; |
19 | ||
9b288516 | 20 | struct transport { |
9b288516 DB |
21 | struct remote *remote; |
22 | const char *url; | |
9b288516 | 23 | void *data; |
4577370e | 24 | const struct ref *remote_refs; |
9b288516 | 25 | |
b0d66e15 TRC |
26 | /** |
27 | * Indicates whether we already called get_refs_list(); set by | |
28 | * transport.c::transport_get_remote_refs(). | |
29 | */ | |
30 | unsigned got_remote_refs : 1; | |
31 | ||
b26ed430 JH |
32 | /* |
33 | * Transports that call take-over destroys the data specific to | |
34 | * the transport type while doing so, and cannot be reused. | |
35 | */ | |
36 | unsigned cannot_reuse : 1; | |
37 | ||
9b288516 DB |
38 | /** |
39 | * Returns 0 if successful, positive if the option is not | |
40 | * recognized or is inapplicable, and negative if the option | |
41 | * is applicable but the value is invalid. | |
42 | **/ | |
43 | int (*set_option)(struct transport *connection, const char *name, | |
44 | const char *value); | |
45 | ||
37148311 DB |
46 | /** |
47 | * Returns a list of the remote side's refs. In order to allow | |
48 | * the transport to try to share connections, for_push is a | |
49 | * hint as to whether the ultimate operation is a push or a fetch. | |
50 | * | |
51 | * If the transport is able to determine the remote hash for | |
52 | * the ref without a huge amount of effort, it should store it | |
53 | * in the ref's old_sha1 field; otherwise it should be all 0. | |
54 | **/ | |
64fcef2d | 55 | struct ref *(*get_refs_list)(struct transport *transport, int for_push); |
37148311 DB |
56 | |
57 | /** | |
58 | * Fetch the objects for the given refs. Note that this gets | |
59 | * an array, and should ignore the list structure. | |
60 | * | |
61 | * If the transport did not get hashes for refs in | |
62 | * get_refs_list(), it should set the old_sha1 fields in the | |
63 | * provided refs now. | |
64 | **/ | |
65 | int (*fetch)(struct transport *transport, int refs_nr, struct ref **refs); | |
66 | ||
67 | /** | |
68 | * Push the objects and refs. Send the necessary objects, and | |
69 | * then, for any refs where peer_ref is set and | |
70 | * peer_ref->new_sha1 is different from old_sha1, tell the | |
71 | * remote side to update each ref in the list from old_sha1 to | |
72 | * peer_ref->new_sha1. | |
73 | * | |
74 | * Where possible, set the status for each ref appropriately. | |
75 | * | |
76 | * The transport must modify new_sha1 in the ref to the new | |
77 | * value if the remote accepted the change. Note that this | |
78 | * could be a different value from peer_ref->new_sha1 if the | |
79 | * process involved generating new commits. | |
80 | **/ | |
64fcef2d | 81 | int (*push_refs)(struct transport *transport, struct ref *refs, int flags); |
9b288516 | 82 | int (*push)(struct transport *connection, int refspec_nr, const char **refspec, int flags); |
b236752a IL |
83 | int (*connect)(struct transport *connection, const char *name, |
84 | const char *executable, int fd[2]); | |
9b288516 | 85 | |
37148311 | 86 | /** get_refs_list(), fetch(), and push_refs() can keep |
41ccfdd9 | 87 | * resources (such as a connection) reserved for further |
37148311 DB |
88 | * use. disconnect() releases these resources. |
89 | **/ | |
9b288516 | 90 | int (*disconnect)(struct transport *connection); |
824d5776 | 91 | char *pack_lockfile; |
cff7123c | 92 | signed verbose : 3; |
d01b3c02 TRC |
93 | /** |
94 | * Transports should not set this directly, and should use this | |
95 | * value without having to check isatty(2), -q/--quiet | |
96 | * (transport->verbose < 0), etc. - checking has already been done | |
97 | * in transport_set_verbosity(). | |
98 | **/ | |
21188b1e | 99 | unsigned progress : 1; |
aa5af974 IL |
100 | /* |
101 | * If transport is at least potentially smart, this points to | |
102 | * git_transport_options structure to use in case transport | |
103 | * actually turns out to be smart. | |
104 | */ | |
105 | struct git_transport_options *smart_options; | |
9b288516 DB |
106 | }; |
107 | ||
824d5776 SP |
108 | #define TRANSPORT_PUSH_ALL 1 |
109 | #define TRANSPORT_PUSH_FORCE 2 | |
2e13e5d8 | 110 | #define TRANSPORT_PUSH_DRY_RUN 4 |
94c89ba6 | 111 | #define TRANSPORT_PUSH_MIRROR 8 |
212cfe15 TRC |
112 | #define TRANSPORT_PUSH_PORCELAIN 16 |
113 | #define TRANSPORT_PUSH_SET_UPSTREAM 32 | |
d2b17b32 | 114 | #define TRANSPORT_RECURSE_SUBMODULES_CHECK 64 |
6ddba5e2 | 115 | #define TRANSPORT_PUSH_PRUNE 128 |
eb21c732 | 116 | #define TRANSPORT_RECURSE_SUBMODULES_ON_DEMAND 256 |
ec55559f | 117 | #define TRANSPORT_PUSH_NO_HOOK 512 |
c2aba155 | 118 | #define TRANSPORT_PUSH_FOLLOW_TAGS 1024 |
824d5776 | 119 | |
f1863d0d | 120 | #define TRANSPORT_SUMMARY_WIDTH (2 * DEFAULT_ABBREV + 3) |
754395d3 | 121 | #define TRANSPORT_SUMMARY(x) (int)(TRANSPORT_SUMMARY_WIDTH + strlen(x) - gettext_width(x)), (x) |
824d5776 | 122 | |
9b288516 | 123 | /* Returns a transport suitable for the url */ |
e5f4e214 | 124 | struct transport *transport_get(struct remote *, const char *); |
9b288516 DB |
125 | |
126 | /* Transport options which apply to git:// and scp-style URLs */ | |
127 | ||
c29727d5 DB |
128 | /* The program to use on the remote side to send a pack */ |
129 | #define TRANS_OPT_UPLOADPACK "uploadpack" | |
130 | ||
9b288516 DB |
131 | /* The program to use on the remote side to receive a pack */ |
132 | #define TRANS_OPT_RECEIVEPACK "receivepack" | |
133 | ||
134 | /* Transfer the data as a thin pack if not null */ | |
135 | #define TRANS_OPT_THIN "thin" | |
136 | ||
91048a95 JH |
137 | /* Check the current value of the remote ref */ |
138 | #define TRANS_OPT_CAS "cas" | |
139 | ||
c29727d5 DB |
140 | /* Keep the pack that was transferred if not null */ |
141 | #define TRANS_OPT_KEEP "keep" | |
142 | ||
c29727d5 DB |
143 | /* Limit the depth of the fetch if not null */ |
144 | #define TRANS_OPT_DEPTH "depth" | |
145 | ||
41fa7d2e SP |
146 | /* Aggressively fetch annotated tags if possible */ |
147 | #define TRANS_OPT_FOLLOWTAGS "followtags" | |
148 | ||
9b288516 DB |
149 | /** |
150 | * Returns 0 if the option was used, non-zero otherwise. Prints a | |
151 | * message to stderr if the option is not used. | |
152 | **/ | |
153 | int transport_set_option(struct transport *transport, const char *name, | |
154 | const char *value); | |
d01b3c02 TRC |
155 | void transport_set_verbosity(struct transport *transport, int verbosity, |
156 | int force_progress); | |
9b288516 | 157 | |
10643d4e CR |
158 | #define REJECT_NON_FF_HEAD 0x01 |
159 | #define REJECT_NON_FF_OTHER 0x02 | |
b24e6047 | 160 | #define REJECT_ALREADY_EXISTS 0x04 |
75e5c0dc JH |
161 | #define REJECT_FETCH_FIRST 0x08 |
162 | #define REJECT_NEEDS_FORCE 0x10 | |
10643d4e | 163 | |
9b288516 | 164 | int transport_push(struct transport *connection, |
07436e43 | 165 | int refspec_nr, const char **refspec, int flags, |
10643d4e | 166 | unsigned int * reject_reasons); |
9b288516 | 167 | |
4577370e | 168 | const struct ref *transport_get_remote_refs(struct transport *transport); |
c29727d5 | 169 | |
37148311 | 170 | int transport_fetch_refs(struct transport *transport, struct ref *refs); |
1788c39c | 171 | void transport_unlock_pack(struct transport *transport); |
9b288516 | 172 | int transport_disconnect(struct transport *transport); |
47abd85b | 173 | char *transport_anonymize_url(const char *url); |
61b075bd IL |
174 | void transport_take_over(struct transport *transport, |
175 | struct child_process *child); | |
9b288516 | 176 | |
b236752a IL |
177 | int transport_connect(struct transport *transport, const char *name, |
178 | const char *exec, int fd[2]); | |
179 | ||
6eb996b5 | 180 | /* Transport methods defined outside transport.c */ |
c9e388bb | 181 | int transport_helper_init(struct transport *transport, const char *name); |
419f37db | 182 | int bidirectional_transfer_loop(int input, int output); |
6eb996b5 | 183 | |
09b7e220 | 184 | /* common methods used by transport.c and builtin/send-pack.c */ |
f1863d0d ML |
185 | void transport_verify_remote_names(int nr_heads, const char **heads); |
186 | ||
187 | void transport_update_tracking_ref(struct remote *remote, struct ref *ref, int verbose); | |
188 | ||
189 | int transport_refs_pushed(struct ref *ref); | |
190 | ||
191 | void transport_print_push_status(const char *dest, struct ref *refs, | |
10643d4e | 192 | int verbose, int porcelain, unsigned int *reject_reasons); |
f1863d0d | 193 | |
36cfda15 | 194 | typedef void alternate_ref_fn(const struct ref *, void *); |
114a6a88 | 195 | extern void for_each_alternate_ref(alternate_ref_fn, void *); |
36cfda15 | 196 | |
f5d942e1 NTND |
197 | struct send_pack_args; |
198 | extern int send_pack(struct send_pack_args *args, | |
199 | int fd[], struct child_process *conn, | |
200 | struct ref *remote_refs, | |
201 | struct extra_have_objects *extra_have); | |
9b288516 | 202 | #endif |