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#ifndef TRANSPORT_H
#define TRANSPORT_H
#include "cache.h"
#include "remote.h"
struct transport {
struct remote *remote;
const char *url;
void *data;
const struct ref *remote_refs;
/**
* Returns 0 if successful, positive if the option is not
* recognized or is inapplicable, and negative if the option
* is applicable but the value is invalid.
**/
int (*set_option)(struct transport *connection, const char *name,
const char *value);
/**
* Returns a list of the remote side's refs. In order to allow
* the transport to try to share connections, for_push is a
* hint as to whether the ultimate operation is a push or a fetch.
*
* If the transport is able to determine the remote hash for
* the ref without a huge amount of effort, it should store it
* in the ref's old_sha1 field; otherwise it should be all 0.
**/
struct ref *(*get_refs_list)(struct transport *transport, int for_push);
/**
* Fetch the objects for the given refs. Note that this gets
* an array, and should ignore the list structure.
*
* If the transport did not get hashes for refs in
* get_refs_list(), it should set the old_sha1 fields in the
* provided refs now.
**/
int (*fetch)(struct transport *transport, int refs_nr, struct ref **refs);
/**
* Push the objects and refs. Send the necessary objects, and
* then, for any refs where peer_ref is set and
* peer_ref->new_sha1 is different from old_sha1, tell the
* remote side to update each ref in the list from old_sha1 to
* peer_ref->new_sha1.
*
* Where possible, set the status for each ref appropriately.
*
* The transport must modify new_sha1 in the ref to the new
* value if the remote accepted the change. Note that this
* could be a different value from peer_ref->new_sha1 if the
* process involved generating new commits.
**/
int (*push_refs)(struct transport *transport, struct ref *refs, int flags);
int (*push)(struct transport *connection, int refspec_nr, const char **refspec, int flags);
/** get_refs_list(), fetch(), and push_refs() can keep
* resources (such as a connection) reserved for futher
* use. disconnect() releases these resources.
**/
int (*disconnect)(struct transport *connection);
char *pack_lockfile;
signed verbose : 3;
/* Force progress even if the output is not a tty */
unsigned progress : 1;
};
#define TRANSPORT_PUSH_ALL 1
#define TRANSPORT_PUSH_FORCE 2
#define TRANSPORT_PUSH_DRY_RUN 4
#define TRANSPORT_PUSH_MIRROR 8
#define TRANSPORT_PUSH_VERBOSE 16
#define TRANSPORT_PUSH_PORCELAIN 32
#define TRANSPORT_PUSH_QUIET 64
/* Returns a transport suitable for the url */
struct transport *transport_get(struct remote *, const char *);
/* Transport options which apply to git:// and scp-style URLs */
/* The program to use on the remote side to send a pack */
#define TRANS_OPT_UPLOADPACK "uploadpack"
/* The program to use on the remote side to receive a pack */
#define TRANS_OPT_RECEIVEPACK "receivepack"
/* Transfer the data as a thin pack if not null */
#define TRANS_OPT_THIN "thin"
/* Keep the pack that was transferred if not null */
#define TRANS_OPT_KEEP "keep"
/* Limit the depth of the fetch if not null */
#define TRANS_OPT_DEPTH "depth"
/* Aggressively fetch annotated tags if possible */
#define TRANS_OPT_FOLLOWTAGS "followtags"
/**
* Returns 0 if the option was used, non-zero otherwise. Prints a
* message to stderr if the option is not used.
**/
int transport_set_option(struct transport *transport, const char *name,
const char *value);
int transport_push(struct transport *connection,
int refspec_nr, const char **refspec, int flags,
int * nonfastforward);
const struct ref *transport_get_remote_refs(struct transport *transport);
int transport_fetch_refs(struct transport *transport, struct ref *refs);
void transport_unlock_pack(struct transport *transport);
int transport_disconnect(struct transport *transport);
char *transport_anonymize_url(const char *url);
/* Transport methods defined outside transport.c */
int transport_helper_init(struct transport *transport, const char *name);
#endif
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