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