mirror of
https://github.com/git/git.git
synced 2024-11-24 10:26:17 +08:00
9da69a6539
Whenever a fetch results in a packfile being downloaded, a .keep file is generated, so that the packfile can be preserved (from, say, a running "git repack") until refs are written referring to the contents of the packfile. In a subsequent patch, a successful fetch using protocol v2 may result in more than one .keep file being generated. Therefore, teach fetch_pack() and the transport mechanism to support multiple .keep files. Implementation notes: - builtin/fetch-pack.c normally does not generate .keep files, and thus is unaffected by this or future changes. However, it has an undocumented "--lock-pack" feature, used by remote-curl.c when implementing the "fetch" remote helper command. In keeping with the remote helper protocol, only one "lock" line will ever be written; the rest will result in warnings to stderr. However, in practice, warnings will never be written because the remote-curl.c "fetch" is only used for protocol v0/v1 (which will not generate multiple .keep files). (Protocol v2 uses the "stateless-connect" command, not the "fetch" command.) - connected.c has an optimization in that connectivity checks on a ref need not be done if the target object is in a pack known to be self-contained and connected. If there are multiple packfiles, this optimization can no longer be done. Signed-off-by: Jonathan Tan <jonathantanmy@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
96 lines
2.9 KiB
C
96 lines
2.9 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"
|
|
|
|
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 deepen:1;
|
|
unsigned from_promisor:1;
|
|
|
|
/*
|
|
* Attempt to fetch only the wanted objects, and not any objects
|
|
* referred to by them. Due to protocol limitations, extraneous
|
|
* objects may still be included. (When fetching non-blob
|
|
* objects, only blobs are excluded; when fetching a blob, the
|
|
* blob itself will still be sent. The client does not need to
|
|
* know whether a wanted object is a blob or not.)
|
|
*
|
|
* If 1, fetch_pack() will also not modify any object flags.
|
|
* This allows fetch_pack() to safely be called by any function,
|
|
* regardless of which object flags it uses (if any).
|
|
*/
|
|
unsigned no_dependents: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);
|
|
|
|
/*
|
|
* 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
|