factor out refresh_and_write_cache function
[git/git.git] / transport.h
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1#ifndef TRANSPORT_H
2#define TRANSPORT_H
3
4#include "cache.h"
47a59185 5#include "run-command.h"
9b288516 6#include "remote.h"
640d8b72 7#include "list-objects-filter-options.h"
9b288516 8
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NTND
9struct string_list;
10
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11struct git_transport_options {
12 unsigned thin : 1;
13 unsigned keep : 1;
14 unsigned followtags : 1;
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NTND
15 unsigned check_self_contained_and_connected : 1;
16 unsigned self_contained_and_connected : 1;
48d25cae 17 unsigned update_shallow : 1;
cccf74e2 18 unsigned deepen_relative : 1;
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19 unsigned from_promisor : 1;
20 unsigned no_dependents : 1;
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21
22 /*
23 * If this transport supports connect or stateless-connect,
24 * the corresponding field in struct fetch_pack_args is copied
25 * here after fetching.
26 *
27 * See the definition of connectivity_checked in struct
28 * fetch_pack_args for more information.
29 */
30 unsigned connectivity_checked:1;
31
aa5af974 32 int depth;
508ea882 33 const char *deepen_since;
a45a2600 34 const struct string_list *deepen_not;
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35 const char *uploadpack;
36 const char *receivepack;
91048a95 37 struct push_cas_option *cas;
640d8b72 38 struct list_objects_filter_options filter_options;
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39
40 /*
41 * This is only used during fetch. See the documentation of
42 * negotiation_tips in struct fetch_pack_args.
43 *
44 * This field is only supported by transports that support connect or
45 * stateless_connect. Set this field directly instead of using
46 * transport_set_option().
47 */
48 struct oid_array *negotiation_tips;
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49};
50
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51enum transport_family {
52 TRANSPORT_FAMILY_ALL = 0,
53 TRANSPORT_FAMILY_IPV4,
54 TRANSPORT_FAMILY_IPV6
55};
56
9b288516 57struct transport {
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58 const struct transport_vtable *vtable;
59
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60 struct remote *remote;
61 const char *url;
9b288516 62 void *data;
4577370e 63 const struct ref *remote_refs;
9b288516 64
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65 /**
66 * Indicates whether we already called get_refs_list(); set by
67 * transport.c::transport_get_remote_refs().
68 */
69 unsigned got_remote_refs : 1;
70
b26ed430
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71 /*
72 * Transports that call take-over destroys the data specific to
73 * the transport type while doing so, and cannot be reused.
74 */
75 unsigned cannot_reuse : 1;
76
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77 /*
78 * A hint from caller that it will be performing a clone, not
79 * normal fetch. IOW the repository is guaranteed empty.
80 */
81 unsigned cloning : 1;
82
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83 /*
84 * Indicates that the transport is connected via a half-duplex
85 * connection and should operate in stateless-rpc mode.
86 */
87 unsigned stateless_rpc : 1;
88
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89 /*
90 * These strings will be passed to the {pre, post}-receive hook,
91 * on the remote side, if both sides support the push options capability.
92 */
93 const struct string_list *push_options;
94
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95 /*
96 * These strings will be passed to the remote side on each command
97 * request, if both sides support the server-option capability.
98 */
99 const struct string_list *server_options;
100
824d5776 101 char *pack_lockfile;
cff7123c 102 signed verbose : 3;
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103 /**
104 * Transports should not set this directly, and should use this
105 * value without having to check isatty(2), -q/--quiet
106 * (transport->verbose < 0), etc. - checking has already been done
107 * in transport_set_verbosity().
108 **/
21188b1e 109 unsigned progress : 1;
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110 /*
111 * If transport is at least potentially smart, this points to
112 * git_transport_options structure to use in case transport
113 * actually turns out to be smart.
114 */
115 struct git_transport_options *smart_options;
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116
117 enum transport_family family;
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118};
119
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120#define TRANSPORT_PUSH_ALL (1<<0)
121#define TRANSPORT_PUSH_FORCE (1<<1)
122#define TRANSPORT_PUSH_DRY_RUN (1<<2)
123#define TRANSPORT_PUSH_MIRROR (1<<3)
124#define TRANSPORT_PUSH_PORCELAIN (1<<4)
125#define TRANSPORT_PUSH_SET_UPSTREAM (1<<5)
126#define TRANSPORT_RECURSE_SUBMODULES_CHECK (1<<6)
127#define TRANSPORT_PUSH_PRUNE (1<<7)
128#define TRANSPORT_RECURSE_SUBMODULES_ON_DEMAND (1<<8)
129#define TRANSPORT_PUSH_NO_HOOK (1<<9)
130#define TRANSPORT_PUSH_FOLLOW_TAGS (1<<10)
131#define TRANSPORT_PUSH_CERT_ALWAYS (1<<11)
132#define TRANSPORT_PUSH_CERT_IF_ASKED (1<<12)
133#define TRANSPORT_PUSH_ATOMIC (1<<13)
134#define TRANSPORT_PUSH_OPTIONS (1<<14)
225e8bf7 135#define TRANSPORT_RECURSE_SUBMODULES_ONLY (1<<15)
824d5776 136
55454427 137int transport_summary_width(const struct ref *refs);
824d5776 138
9b288516 139/* Returns a transport suitable for the url */
e5f4e214 140struct transport *transport_get(struct remote *, const char *);
9b288516 141
5088d3b3 142/*
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143 * Check whether a transport is allowed by the environment.
144 *
145 * Type should generally be the URL scheme, as described in
146 * Documentation/git.txt
147 *
148 * from_user specifies if the transport was given by the user. If unknown pass
149 * a -1 to read from the environment to determine if the transport was given by
150 * the user.
151 *
5088d3b3 152 */
a768a022 153int is_transport_allowed(const char *type, int from_user);
5088d3b3 154
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155/*
156 * Check whether a transport is allowed by the environment,
5088d3b3 157 * and die otherwise.
a5adaced
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158 */
159void transport_check_allowed(const char *type);
160
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161/* Transport options which apply to git:// and scp-style URLs */
162
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163/* The program to use on the remote side to send a pack */
164#define TRANS_OPT_UPLOADPACK "uploadpack"
165
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166/* The program to use on the remote side to receive a pack */
167#define TRANS_OPT_RECEIVEPACK "receivepack"
168
169/* Transfer the data as a thin pack if not null */
170#define TRANS_OPT_THIN "thin"
171
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172/* Check the current value of the remote ref */
173#define TRANS_OPT_CAS "cas"
174
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175/* Keep the pack that was transferred if not null */
176#define TRANS_OPT_KEEP "keep"
177
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178/* Limit the depth of the fetch if not null */
179#define TRANS_OPT_DEPTH "depth"
180
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181/* Limit the depth of the fetch based on time if not null */
182#define TRANS_OPT_DEEPEN_SINCE "deepen-since"
183
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184/* Limit the depth of the fetch based on revs if not null */
185#define TRANS_OPT_DEEPEN_NOT "deepen-not"
186
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187/* Limit the deepen of the fetch if not null */
188#define TRANS_OPT_DEEPEN_RELATIVE "deepen-relative"
189
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190/* Aggressively fetch annotated tags if possible */
191#define TRANS_OPT_FOLLOWTAGS "followtags"
192
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193/* Accept refs that may update .git/shallow without --depth */
194#define TRANS_OPT_UPDATE_SHALLOW "updateshallow"
195
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196/* Send push certificates */
197#define TRANS_OPT_PUSH_CERT "pushcert"
198
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199/* Indicate that these objects are being fetched by a promisor */
200#define TRANS_OPT_FROM_PROMISOR "from-promisor"
201
202/*
203 * Indicate that only the objects wanted need to be fetched, not their
204 * dependents
205 */
206#define TRANS_OPT_NO_DEPENDENTS "no-dependents"
207
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208/* Filter objects for partial clone and fetch */
209#define TRANS_OPT_LIST_OBJECTS_FILTER "filter"
210
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211/**
212 * Returns 0 if the option was used, non-zero otherwise. Prints a
213 * message to stderr if the option is not used.
214 **/
215int transport_set_option(struct transport *transport, const char *name,
216 const char *value);
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217void transport_set_verbosity(struct transport *transport, int verbosity,
218 int force_progress);
9b288516 219
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220#define REJECT_NON_FF_HEAD 0x01
221#define REJECT_NON_FF_OTHER 0x02
b24e6047 222#define REJECT_ALREADY_EXISTS 0x04
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223#define REJECT_FETCH_FIRST 0x08
224#define REJECT_NEEDS_FORCE 0x10
10643d4e 225
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226int transport_push(struct repository *repo,
227 struct transport *connection,
306f22db 228 struct refspec *rs, int flags,
10643d4e 229 unsigned int * reject_reasons);
9b288516 230
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231/*
232 * Retrieve refs from a remote.
233 *
234 * Optionally a list of ref prefixes can be provided which can be sent to the
235 * server (when communicating using protocol v2) to enable it to limit the ref
236 * advertisement. Since ref filtering is done on the server's end (and only
237 * when using protocol v2), this can return refs which don't match the provided
238 * ref_prefixes.
239 */
240const struct ref *transport_get_remote_refs(struct transport *transport,
241 const struct argv_array *ref_prefixes);
c29727d5 242
e2842b39 243int transport_fetch_refs(struct transport *transport, struct ref *refs);
1788c39c 244void transport_unlock_pack(struct transport *transport);
9b288516 245int transport_disconnect(struct transport *transport);
47abd85b 246char *transport_anonymize_url(const char *url);
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247void transport_take_over(struct transport *transport,
248 struct child_process *child);
9b288516 249
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250int transport_connect(struct transport *transport, const char *name,
251 const char *exec, int fd[2]);
252
6eb996b5 253/* Transport methods defined outside transport.c */
c9e388bb 254int transport_helper_init(struct transport *transport, const char *name);
419f37db 255int bidirectional_transfer_loop(int input, int output);
6eb996b5 256
09b7e220 257/* common methods used by transport.c and builtin/send-pack.c */
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258void transport_update_tracking_ref(struct remote *remote, struct ref *ref, int verbose);
259
260int transport_refs_pushed(struct ref *ref);
261
262void transport_print_push_status(const char *dest, struct ref *refs,
10643d4e 263 int verbose, int porcelain, unsigned int *reject_reasons);
f1863d0d 264
9b288516 265#endif