Merge branch 'jc/typo'
[git/git.git] / transport.h
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1#ifndef TRANSPORT_H
2#define TRANSPORT_H
3
4#include "cache.h"
5#include "remote.h"
6
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7struct git_transport_options {
8 unsigned thin : 1;
9 unsigned keep : 1;
10 unsigned followtags : 1;
11 int depth;
12 const char *uploadpack;
13 const char *receivepack;
14};
15
9b288516 16struct transport {
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17 struct remote *remote;
18 const char *url;
9b288516 19 void *data;
4577370e 20 const struct ref *remote_refs;
9b288516 21
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22 /**
23 * Returns 0 if successful, positive if the option is not
24 * recognized or is inapplicable, and negative if the option
25 * is applicable but the value is invalid.
26 **/
27 int (*set_option)(struct transport *connection, const char *name,
28 const char *value);
29
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30 /**
31 * Returns a list of the remote side's refs. In order to allow
32 * the transport to try to share connections, for_push is a
33 * hint as to whether the ultimate operation is a push or a fetch.
34 *
35 * If the transport is able to determine the remote hash for
36 * the ref without a huge amount of effort, it should store it
37 * in the ref's old_sha1 field; otherwise it should be all 0.
38 **/
64fcef2d 39 struct ref *(*get_refs_list)(struct transport *transport, int for_push);
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40
41 /**
42 * Fetch the objects for the given refs. Note that this gets
43 * an array, and should ignore the list structure.
44 *
45 * If the transport did not get hashes for refs in
46 * get_refs_list(), it should set the old_sha1 fields in the
47 * provided refs now.
48 **/
49 int (*fetch)(struct transport *transport, int refs_nr, struct ref **refs);
50
51 /**
52 * Push the objects and refs. Send the necessary objects, and
53 * then, for any refs where peer_ref is set and
54 * peer_ref->new_sha1 is different from old_sha1, tell the
55 * remote side to update each ref in the list from old_sha1 to
56 * peer_ref->new_sha1.
57 *
58 * Where possible, set the status for each ref appropriately.
59 *
60 * The transport must modify new_sha1 in the ref to the new
61 * value if the remote accepted the change. Note that this
62 * could be a different value from peer_ref->new_sha1 if the
63 * process involved generating new commits.
64 **/
64fcef2d 65 int (*push_refs)(struct transport *transport, struct ref *refs, int flags);
9b288516 66 int (*push)(struct transport *connection, int refspec_nr, const char **refspec, int flags);
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67 int (*connect)(struct transport *connection, const char *name,
68 const char *executable, int fd[2]);
9b288516 69
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70 /** get_refs_list(), fetch(), and push_refs() can keep
71 * resources (such as a connection) reserved for futher
72 * use. disconnect() releases these resources.
73 **/
9b288516 74 int (*disconnect)(struct transport *connection);
824d5776 75 char *pack_lockfile;
cff7123c 76 signed verbose : 3;
486a3d71 77 /* Force progress even if stderr is not a tty */
21188b1e 78 unsigned progress : 1;
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79 /*
80 * If transport is at least potentially smart, this points to
81 * git_transport_options structure to use in case transport
82 * actually turns out to be smart.
83 */
84 struct git_transport_options *smart_options;
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85};
86
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87#define TRANSPORT_PUSH_ALL 1
88#define TRANSPORT_PUSH_FORCE 2
2e13e5d8 89#define TRANSPORT_PUSH_DRY_RUN 4
94c89ba6 90#define TRANSPORT_PUSH_MIRROR 8
bcd2e266 91#define TRANSPORT_PUSH_VERBOSE 16
1965ff74 92#define TRANSPORT_PUSH_PORCELAIN 32
afdeeb00 93#define TRANSPORT_PUSH_QUIET 64
e9fcd1e2 94#define TRANSPORT_PUSH_SET_UPSTREAM 128
824d5776 95
9b288516 96/* Returns a transport suitable for the url */
e5f4e214 97struct transport *transport_get(struct remote *, const char *);
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98
99/* Transport options which apply to git:// and scp-style URLs */
100
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101/* The program to use on the remote side to send a pack */
102#define TRANS_OPT_UPLOADPACK "uploadpack"
103
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104/* The program to use on the remote side to receive a pack */
105#define TRANS_OPT_RECEIVEPACK "receivepack"
106
107/* Transfer the data as a thin pack if not null */
108#define TRANS_OPT_THIN "thin"
109
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110/* Keep the pack that was transferred if not null */
111#define TRANS_OPT_KEEP "keep"
112
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113/* Limit the depth of the fetch if not null */
114#define TRANS_OPT_DEPTH "depth"
115
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116/* Aggressively fetch annotated tags if possible */
117#define TRANS_OPT_FOLLOWTAGS "followtags"
118
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119/**
120 * Returns 0 if the option was used, non-zero otherwise. Prints a
121 * message to stderr if the option is not used.
122 **/
123int transport_set_option(struct transport *transport, const char *name,
124 const char *value);
125
126int transport_push(struct transport *connection,
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127 int refspec_nr, const char **refspec, int flags,
128 int * nonfastforward);
9b288516 129
4577370e 130const struct ref *transport_get_remote_refs(struct transport *transport);
c29727d5 131
37148311 132int transport_fetch_refs(struct transport *transport, struct ref *refs);
1788c39c 133void transport_unlock_pack(struct transport *transport);
9b288516 134int transport_disconnect(struct transport *transport);
47abd85b 135char *transport_anonymize_url(const char *url);
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136void transport_take_over(struct transport *transport,
137 struct child_process *child);
9b288516 138
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139int transport_connect(struct transport *transport, const char *name,
140 const char *exec, int fd[2]);
141
6eb996b5 142/* Transport methods defined outside transport.c */
c9e388bb 143int transport_helper_init(struct transport *transport, const char *name);
6eb996b5 144
9b288516 145#endif