зеркало из https://github.com/microsoft/git.git
259 строки
8.2 KiB
C
259 строки
8.2 KiB
C
#ifndef TRANSPORT_H
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#define TRANSPORT_H
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#include "cache.h"
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#include "run-command.h"
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#include "remote.h"
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struct string_list;
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struct git_transport_options {
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unsigned thin : 1;
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unsigned keep : 1;
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unsigned followtags : 1;
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unsigned check_self_contained_and_connected : 1;
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unsigned self_contained_and_connected : 1;
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unsigned update_shallow : 1;
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unsigned deepen_relative : 1;
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int depth;
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const char *deepen_since;
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const struct string_list *deepen_not;
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const char *uploadpack;
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const char *receivepack;
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struct push_cas_option *cas;
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};
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enum transport_family {
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TRANSPORT_FAMILY_ALL = 0,
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TRANSPORT_FAMILY_IPV4,
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TRANSPORT_FAMILY_IPV6
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};
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struct transport {
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struct remote *remote;
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const char *url;
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void *data;
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const struct ref *remote_refs;
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/**
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* Indicates whether we already called get_refs_list(); set by
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* transport.c::transport_get_remote_refs().
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*/
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unsigned got_remote_refs : 1;
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/*
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* Transports that call take-over destroys the data specific to
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* the transport type while doing so, and cannot be reused.
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*/
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unsigned cannot_reuse : 1;
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/*
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* A hint from caller that it will be performing a clone, not
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* normal fetch. IOW the repository is guaranteed empty.
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*/
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unsigned cloning : 1;
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/*
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* These strings will be passed to the {pre, post}-receive hook,
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* on the remote side, if both sides support the push options capability.
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*/
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const struct string_list *push_options;
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/**
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* Returns 0 if successful, positive if the option is not
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* recognized or is inapplicable, and negative if the option
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* is applicable but the value is invalid.
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**/
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int (*set_option)(struct transport *connection, const char *name,
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const char *value);
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/**
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* Returns a list of the remote side's refs. In order to allow
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* the transport to try to share connections, for_push is a
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* hint as to whether the ultimate operation is a push or a fetch.
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*
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* If the transport is able to determine the remote hash for
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* the ref without a huge amount of effort, it should store it
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* in the ref's old_sha1 field; otherwise it should be all 0.
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**/
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struct ref *(*get_refs_list)(struct transport *transport, int for_push);
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/**
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* Fetch the objects for the given refs. Note that this gets
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* an array, and should ignore the list structure.
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*
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* If the transport did not get hashes for refs in
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* get_refs_list(), it should set the old_sha1 fields in the
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* provided refs now.
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**/
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int (*fetch)(struct transport *transport, int refs_nr, struct ref **refs);
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/**
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* Push the objects and refs. Send the necessary objects, and
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* then, for any refs where peer_ref is set and
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* peer_ref->new_oid is different from old_oid, tell the
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* remote side to update each ref in the list from old_oid to
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* peer_ref->new_oid.
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*
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* Where possible, set the status for each ref appropriately.
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*
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* The transport must modify new_sha1 in the ref to the new
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* value if the remote accepted the change. Note that this
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* could be a different value from peer_ref->new_oid if the
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* process involved generating new commits.
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**/
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int (*push_refs)(struct transport *transport, struct ref *refs, int flags);
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int (*push)(struct transport *connection, int refspec_nr, const char **refspec, int flags);
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int (*connect)(struct transport *connection, const char *name,
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const char *executable, int fd[2]);
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/** get_refs_list(), fetch(), and push_refs() can keep
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* resources (such as a connection) reserved for further
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* use. disconnect() releases these resources.
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**/
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int (*disconnect)(struct transport *connection);
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char *pack_lockfile;
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signed verbose : 3;
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/**
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* Transports should not set this directly, and should use this
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* value without having to check isatty(2), -q/--quiet
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* (transport->verbose < 0), etc. - checking has already been done
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* in transport_set_verbosity().
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**/
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unsigned progress : 1;
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/*
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* If transport is at least potentially smart, this points to
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* git_transport_options structure to use in case transport
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* actually turns out to be smart.
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*/
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struct git_transport_options *smart_options;
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enum transport_family family;
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};
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#define TRANSPORT_PUSH_ALL 1
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#define TRANSPORT_PUSH_FORCE 2
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#define TRANSPORT_PUSH_DRY_RUN 4
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#define TRANSPORT_PUSH_MIRROR 8
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#define TRANSPORT_PUSH_PORCELAIN 16
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#define TRANSPORT_PUSH_SET_UPSTREAM 32
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#define TRANSPORT_RECURSE_SUBMODULES_CHECK 64
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#define TRANSPORT_PUSH_PRUNE 128
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#define TRANSPORT_RECURSE_SUBMODULES_ON_DEMAND 256
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#define TRANSPORT_PUSH_NO_HOOK 512
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#define TRANSPORT_PUSH_FOLLOW_TAGS 1024
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#define TRANSPORT_PUSH_CERT_ALWAYS 2048
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#define TRANSPORT_PUSH_CERT_IF_ASKED 4096
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#define TRANSPORT_PUSH_ATOMIC 8192
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#define TRANSPORT_PUSH_OPTIONS 16384
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extern int transport_summary_width(const struct ref *refs);
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/* Returns a transport suitable for the url */
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struct transport *transport_get(struct remote *, const char *);
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/*
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* Check whether a transport is allowed by the environment. Type should
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* generally be the URL scheme, as described in Documentation/git.txt
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*/
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int is_transport_allowed(const char *type);
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/*
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* Check whether a transport is allowed by the environment,
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* and die otherwise.
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*/
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void transport_check_allowed(const char *type);
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/*
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* Returns true if the user has attempted to turn on protocol
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* restrictions at all.
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*/
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int transport_restrict_protocols(void);
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/* Transport options which apply to git:// and scp-style URLs */
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/* The program to use on the remote side to send a pack */
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#define TRANS_OPT_UPLOADPACK "uploadpack"
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/* The program to use on the remote side to receive a pack */
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#define TRANS_OPT_RECEIVEPACK "receivepack"
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/* Transfer the data as a thin pack if not null */
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#define TRANS_OPT_THIN "thin"
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/* Check the current value of the remote ref */
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#define TRANS_OPT_CAS "cas"
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/* Keep the pack that was transferred if not null */
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#define TRANS_OPT_KEEP "keep"
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/* Limit the depth of the fetch if not null */
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#define TRANS_OPT_DEPTH "depth"
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/* Limit the depth of the fetch based on time if not null */
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#define TRANS_OPT_DEEPEN_SINCE "deepen-since"
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/* Limit the depth of the fetch based on revs if not null */
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#define TRANS_OPT_DEEPEN_NOT "deepen-not"
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/* Limit the deepen of the fetch if not null */
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#define TRANS_OPT_DEEPEN_RELATIVE "deepen-relative"
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/* Aggressively fetch annotated tags if possible */
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#define TRANS_OPT_FOLLOWTAGS "followtags"
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/* Accept refs that may update .git/shallow without --depth */
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#define TRANS_OPT_UPDATE_SHALLOW "updateshallow"
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/* Send push certificates */
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#define TRANS_OPT_PUSH_CERT "pushcert"
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/**
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* Returns 0 if the option was used, non-zero otherwise. Prints a
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* message to stderr if the option is not used.
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**/
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int transport_set_option(struct transport *transport, const char *name,
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const char *value);
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void transport_set_verbosity(struct transport *transport, int verbosity,
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int force_progress);
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#define REJECT_NON_FF_HEAD 0x01
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#define REJECT_NON_FF_OTHER 0x02
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#define REJECT_ALREADY_EXISTS 0x04
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#define REJECT_FETCH_FIRST 0x08
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#define REJECT_NEEDS_FORCE 0x10
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int transport_push(struct transport *connection,
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int refspec_nr, const char **refspec, int flags,
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unsigned int * reject_reasons);
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const struct ref *transport_get_remote_refs(struct transport *transport);
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int transport_fetch_refs(struct transport *transport, struct ref *refs);
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void transport_unlock_pack(struct transport *transport);
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int transport_disconnect(struct transport *transport);
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char *transport_anonymize_url(const char *url);
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void transport_take_over(struct transport *transport,
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struct child_process *child);
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int transport_connect(struct transport *transport, const char *name,
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const char *exec, int fd[2]);
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/* Transport methods defined outside transport.c */
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int transport_helper_init(struct transport *transport, const char *name);
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int bidirectional_transfer_loop(int input, int output);
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/* common methods used by transport.c and builtin/send-pack.c */
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void transport_verify_remote_names(int nr_heads, const char **heads);
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void transport_update_tracking_ref(struct remote *remote, struct ref *ref, int verbose);
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int transport_refs_pushed(struct ref *ref);
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void transport_print_push_status(const char *dest, struct ref *refs,
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int verbose, int porcelain, unsigned int *reject_reasons);
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typedef void alternate_ref_fn(const struct ref *, void *);
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extern void for_each_alternate_ref(alternate_ref_fn, void *);
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#endif
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