git/fetch-pack.h
Robert Coup 4dfd0925cb fetch-pack: add refetch
Allow a "refetch" where the contents of the local object store are
ignored and a full fetch is performed, not attempting to find or
negotiate common commits with the remote.

A key use case is to apply a new partial clone blob/tree filter and
refetch all the associated matching content, which would otherwise not
be transferred when the commit objects are already present locally.

Signed-off-by: Robert Coup <robert@coup.net.nz>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2022-03-28 10:25:52 -07:00

105 lines
3.1 KiB
C

#ifndef FETCH_PACK_H
#define FETCH_PACK_H
#include "string-list.h"
#include "run-command.h"
#include "protocol.h"
#include "list-objects-filter-options.h"
#include "oidset.h"
struct oid_array;
struct fetch_pack_args {
const char *uploadpack;
int unpacklimit;
int depth;
const char *deepen_since;
const struct string_list *deepen_not;
struct list_objects_filter_options filter_options;
const struct string_list *server_options;
/*
* If not NULL, during packfile negotiation, fetch-pack will send "have"
* lines only with these tips and their ancestors.
*/
const struct oid_array *negotiation_tips;
unsigned deepen_relative:1;
unsigned quiet:1;
unsigned keep_pack:1;
unsigned lock_pack:1;
unsigned use_thin_pack:1;
unsigned fetch_all:1;
unsigned stdin_refs:1;
unsigned diag_url:1;
unsigned verbose:1;
unsigned no_progress:1;
unsigned include_tag:1;
unsigned stateless_rpc:1;
unsigned check_self_contained_and_connected:1;
unsigned self_contained_and_connected:1;
unsigned cloning:1;
unsigned update_shallow:1;
unsigned reject_shallow_remote:1;
unsigned deepen:1;
unsigned refetch:1;
/*
* Indicate that the remote of this request is a promisor remote. The
* pack received does not need all referred-to objects to be present in
* the local object store, and fetch-pack will store the pack received
* together with a ".promisor" file indicating that the aforementioned
* pack is a promisor pack.
*/
unsigned from_promisor:1;
/*
* Because fetch_pack() overwrites the shallow file upon a
* successful deepening non-clone fetch, if this struct
* specifies such a fetch, fetch_pack() needs to perform a
* connectivity check before deciding if a fetch is successful
* (and overwriting the shallow file). fetch_pack() sets this
* field to 1 if such a connectivity check was performed.
*
* This is different from check_self_contained_and_connected
* in that the former allows existing objects in the
* repository to satisfy connectivity needs, whereas the
* latter doesn't.
*/
unsigned connectivity_checked:1;
};
/*
* sought represents remote references that should be updated from.
* On return, the names that were found on the remote will have been
* marked as such.
*/
struct ref *fetch_pack(struct fetch_pack_args *args,
int fd[],
const struct ref *ref,
struct ref **sought,
int nr_sought,
struct oid_array *shallow,
struct string_list *pack_lockfiles,
enum protocol_version version);
/*
* Execute the --negotiate-only mode of "git fetch", adding all known common
* commits to acked_commits.
*
* In the capability advertisement that has happened prior to invoking this
* function, the "wait-for-done" capability must be present.
*/
void negotiate_using_fetch(const struct oid_array *negotiation_tips,
const struct string_list *server_options,
int stateless_rpc,
int fd[],
struct oidset *acked_commits);
/*
* Print an appropriate error message for each sought ref that wasn't
* matched. Return 0 if all sought refs were matched, otherwise 1.
*/
int report_unmatched_refs(struct ref **sought, int nr_sought);
#endif