1#ifndef TRANSPORT_H 2#define TRANSPORT_H 3 4#include"cache.h" 5#include"remote.h" 6 7struct git_transport_options { 8unsigned thin :1; 9unsigned keep :1; 10unsigned followtags :1; 11int depth; 12const char*uploadpack; 13const char*receivepack; 14}; 15 16struct transport { 17struct remote *remote; 18const char*url; 19void*data; 20const struct ref *remote_refs; 21 22/** 23 * Indicates whether we already called get_refs_list(); set by 24 * transport.c::transport_get_remote_refs(). 25 */ 26unsigned got_remote_refs :1; 27 28/** 29 * Returns 0 if successful, positive if the option is not 30 * recognized or is inapplicable, and negative if the option 31 * is applicable but the value is invalid. 32 **/ 33int(*set_option)(struct transport *connection,const char*name, 34const char*value); 35 36/** 37 * Returns a list of the remote side's refs. In order to allow 38 * the transport to try to share connections, for_push is a 39 * hint as to whether the ultimate operation is a push or a fetch. 40 * 41 * If the transport is able to determine the remote hash for 42 * the ref without a huge amount of effort, it should store it 43 * in the ref's old_sha1 field; otherwise it should be all 0. 44 **/ 45struct ref *(*get_refs_list)(struct transport *transport,int for_push); 46 47/** 48 * Fetch the objects for the given refs. Note that this gets 49 * an array, and should ignore the list structure. 50 * 51 * If the transport did not get hashes for refs in 52 * get_refs_list(), it should set the old_sha1 fields in the 53 * provided refs now. 54 **/ 55int(*fetch)(struct transport *transport,int refs_nr,struct ref **refs); 56 57/** 58 * Push the objects and refs. Send the necessary objects, and 59 * then, for any refs where peer_ref is set and 60 * peer_ref->new_sha1 is different from old_sha1, tell the 61 * remote side to update each ref in the list from old_sha1 to 62 * peer_ref->new_sha1. 63 * 64 * Where possible, set the status for each ref appropriately. 65 * 66 * The transport must modify new_sha1 in the ref to the new 67 * value if the remote accepted the change. Note that this 68 * could be a different value from peer_ref->new_sha1 if the 69 * process involved generating new commits. 70 **/ 71int(*push_refs)(struct transport *transport,struct ref *refs,int flags); 72int(*push)(struct transport *connection,int refspec_nr,const char**refspec,int flags); 73int(*connect)(struct transport *connection,const char*name, 74const char*executable,int fd[2]); 75 76/** get_refs_list(), fetch(), and push_refs() can keep 77 * resources (such as a connection) reserved for futher 78 * use. disconnect() releases these resources. 79 **/ 80int(*disconnect)(struct transport *connection); 81char*pack_lockfile; 82signed verbose :3; 83/* Force progress even if stderr is not a tty */ 84unsigned progress :1; 85/* 86 * If transport is at least potentially smart, this points to 87 * git_transport_options structure to use in case transport 88 * actually turns out to be smart. 89 */ 90struct git_transport_options *smart_options; 91}; 92 93#define TRANSPORT_PUSH_ALL 1 94#define TRANSPORT_PUSH_FORCE 2 95#define TRANSPORT_PUSH_DRY_RUN 4 96#define TRANSPORT_PUSH_MIRROR 8 97#define TRANSPORT_PUSH_VERBOSE 16 98#define TRANSPORT_PUSH_PORCELAIN 32 99#define TRANSPORT_PUSH_QUIET 64 100#define TRANSPORT_PUSH_SET_UPSTREAM 128 101#define TRANSPORT_SUMMARY_WIDTH (2 * DEFAULT_ABBREV + 3) 102 103/* Returns a transport suitable for the url */ 104struct transport *transport_get(struct remote *,const char*); 105 106/* Transport options which apply to git:// and scp-style URLs */ 107 108/* The program to use on the remote side to send a pack */ 109#define TRANS_OPT_UPLOADPACK"uploadpack" 110 111/* The program to use on the remote side to receive a pack */ 112#define TRANS_OPT_RECEIVEPACK"receivepack" 113 114/* Transfer the data as a thin pack if not null */ 115#define TRANS_OPT_THIN"thin" 116 117/* Keep the pack that was transferred if not null */ 118#define TRANS_OPT_KEEP"keep" 119 120/* Limit the depth of the fetch if not null */ 121#define TRANS_OPT_DEPTH"depth" 122 123/* Aggressively fetch annotated tags if possible */ 124#define TRANS_OPT_FOLLOWTAGS"followtags" 125 126/** 127 * Returns 0 if the option was used, non-zero otherwise. Prints a 128 * message to stderr if the option is not used. 129 **/ 130inttransport_set_option(struct transport *transport,const char*name, 131const char*value); 132 133inttransport_push(struct transport *connection, 134int refspec_nr,const char**refspec,int flags, 135int* nonfastforward); 136 137const struct ref *transport_get_remote_refs(struct transport *transport); 138 139inttransport_fetch_refs(struct transport *transport,struct ref *refs); 140voidtransport_unlock_pack(struct transport *transport); 141inttransport_disconnect(struct transport *transport); 142char*transport_anonymize_url(const char*url); 143voidtransport_take_over(struct transport *transport, 144struct child_process *child); 145 146inttransport_connect(struct transport *transport,const char*name, 147const char*exec,int fd[2]); 148 149/* Transport methods defined outside transport.c */ 150inttransport_helper_init(struct transport *transport,const char*name); 151 152/* common methods used by transport.c and builtin-send-pack.c */ 153voidtransport_verify_remote_names(int nr_heads,const char**heads); 154 155voidtransport_update_tracking_ref(struct remote *remote,struct ref *ref,int verbose); 156 157inttransport_refs_pushed(struct ref *ref); 158 159voidtransport_print_push_status(const char*dest,struct ref *refs, 160int verbose,int porcelain,int*nonfastforward); 161 162#endif