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Set up all the needed client parts of the 'bundle-uri' protocol v2 command, without actually doing anything with the bundle URIs. If the server says it supports 'bundle-uri' teach Git to issue the 'bundle-uri' command after the 'ls-refs' during 'git clone'. The returned key=value pairs are passed to the bundle list code which is tested using a different ingest mechanism in t5750-bundle-uri-parse.sh. At this point, Git does nothing with that bundle list. It will not download any of the bundles. That will come in a later change after these protocol bits are finalized. The no-op client is initially used only by 'git clone' to test the basic functionality, and eventually will bootstrap the initial download of Git objects during a fresh clone. The bundle URI client will not be integrated into other fetches until a mechanism is created to select a subset of bundles for download. Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com> Signed-off-by: Derrick Stolee <derrickstolee@github.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
72 lines
2.5 KiB
C
72 lines
2.5 KiB
C
#ifndef TRANSPORT_INTERNAL_H
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#define TRANSPORT_INTERNAL_H
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struct ref;
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struct transport;
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struct strvec;
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struct transport_ls_refs_options;
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struct transport_vtable {
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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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struct transport_ls_refs_options *transport_options);
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/**
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* Populates the remote side's bundle-uri under protocol v2,
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* if the "bundle-uri" capability was advertised. Returns 0 if
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* OK, negative values on error.
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*/
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int (*get_bundle_uri)(struct transport *transport);
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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_refs)(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 (*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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};
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#endif
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