refs: make delete_refs() virtual

In the file-based backend, delete_refs has some special optimization
to deal with packed refs.  In other backends, we might be able to make
ref deletion faster by putting all deletions into a single
transaction.  So we need a special backend function for this.

Signed-off-by: David Turner <dturner@twopensource.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
David Turner 2016-09-04 18:08:40 +02:00 committed by Junio C Hamano
parent fc6814637d
commit a27dcf89b6
3 changed files with 14 additions and 2 deletions

7
refs.c
View File

@ -1532,3 +1532,10 @@ int initial_ref_transaction_commit(struct ref_transaction *transaction,
return refs->be->initial_transaction_commit(refs, transaction, err);
}
int delete_refs(struct string_list *refnames, unsigned int flags)
{
struct ref_store *refs = get_ref_store(NULL);
return refs->be->delete_refs(refs, refnames, flags);
}

View File

@ -2451,10 +2451,11 @@ static int delete_ref_loose(struct ref_lock *lock, int flag, struct strbuf *err)
return 0;
}
int delete_refs(struct string_list *refnames, unsigned int flags)
static int files_delete_refs(struct ref_store *ref_store,
struct string_list *refnames, unsigned int flags)
{
struct files_ref_store *refs =
get_files_ref_store(NULL, "delete_refs");
files_downcast(ref_store, 0, "delete_refs");
struct strbuf err = STRBUF_INIT;
int i, result = 0;
@ -4067,6 +4068,7 @@ struct ref_storage_be refs_be_files = {
files_pack_refs,
files_peel_ref,
files_create_symref,
files_delete_refs,
files_ref_iterator_begin,
files_read_raw_ref,

View File

@ -490,6 +490,8 @@ typedef int create_symref_fn(struct ref_store *ref_store,
const char *ref_target,
const char *refs_heads_master,
const char *logmsg);
typedef int delete_refs_fn(struct ref_store *ref_store,
struct string_list *refnames, unsigned int flags);
/*
* Iterate over the references in the specified ref_store that are
@ -587,6 +589,7 @@ struct ref_storage_be {
pack_refs_fn *pack_refs;
peel_ref_fn *peel_ref;
create_symref_fn *create_symref;
delete_refs_fn *delete_refs;
ref_iterator_begin_fn *iterator_begin;
read_raw_ref_fn *read_raw_ref;