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packed_ref_store: make class into a subclass of ref_store

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Add the infrastructure to make `packed_ref_store` implement
`ref_store`, at least formally (few of the methods are actually
implemented yet). Change the functions in its interface to take
`ref_store *` arguments. Change `files_ref_store` to store a pointer
to `ref_store *` and to call functions via the virtual `ref_store`
interface where possible. This also means that a few
`packed_ref_store` functions can become static.

This is a work in progress. Some more `ref_store` methods will soon be
implemented (e.g., those having to do with reference transactions).
But some of them will never be implemented (e.g., those having to do
with symrefs or reflogs).

Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Michael Haggerty
2017-06-23 09:01:38 +02:00
committed by Junio C Hamano
parent 67be7c5a59
commit e0cc8ac820
4 changed files with 227 additions and 45 deletions
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23
refs/packed-backend.h
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@ -1,33 +1,22 @@
#ifndef REFS_PACKED_BACKEND_H
#define REFS_PACKED_BACKEND_H
struct packed_ref_store *packed_ref_store_create(
const char *path, unsigned int store_flags);
int packed_read_raw_ref(struct packed_ref_store *refs,
const char *refname, unsigned char *sha1,
struct strbuf *referent, unsigned int *type);
int packed_peel_ref(struct packed_ref_store *refs,
const char *refname, unsigned char *sha1);
struct ref_iterator *packed_ref_iterator_begin(
struct packed_ref_store *refs,
const char *prefix, unsigned int flags);
struct ref_store *packed_ref_store_create(const char *path,
unsigned int store_flags);
/*
* Lock the packed-refs file for writing. Flags is passed to
* hold_lock_file_for_update(). Return 0 on success. On errors, set
* errno appropriately and return a nonzero value.
*/
int lock_packed_refs(struct packed_ref_store *refs, int flags);
int lock_packed_refs(struct ref_store *ref_store, int flags);
void add_packed_ref(struct packed_ref_store *refs,
void add_packed_ref(struct ref_store *ref_store,
const char *refname, const struct object_id *oid);
int commit_packed_refs(struct packed_ref_store *refs);
int commit_packed_refs(struct ref_store *ref_store);
int repack_without_refs(struct packed_ref_store *refs,
int repack_without_refs(struct ref_store *ref_store,
struct string_list *refnames, struct strbuf *err);
#endif /* REFS_PACKED_BACKEND_H */