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refs: implement iteration over only per-worktree refs

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Alternate refs backends might still use files to store per-worktree
refs. So provide a way to iterate over only the per-worktree references
in a ref_store. The other backend can set up a files ref_store and
iterate using the new DO_FOR_EACH_PER_WORKTREE_ONLY flag when iterating.

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 18:08:44 +02:00 committed by Junio C Hamano
parent 7d61826439
commit 0c09ec07d1
2 changed files with 13 additions and 1 deletions
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4
refs/files-backend.c
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@ -1798,6 +1798,10 @@ static int files_ref_iterator_advance(struct ref_iterator *ref_iterator)
int ok;
while ((ok = ref_iterator_advance(iter->iter0)) == ITER_OK) {
if (iter->flags & DO_FOR_EACH_PER_WORKTREE_ONLY &&
ref_type(iter->iter0->refname) != REF_TYPE_PER_WORKTREE)
continue;
if (!(iter->flags & DO_FOR_EACH_INCLUDE_BROKEN) &&
!ref_resolves_to_object(iter->iter0->refname,
iter->iter0->oid,

10
refs/refs-internal.h
View file

@ -467,10 +467,18 @@ extern struct ref_iterator *current_ref_iter;
int do_for_each_ref_iterator(struct ref_iterator *iter,
each_ref_fn fn, void *cb_data);
/* refs backends */
/*
* Only include per-worktree refs in a do_for_each_ref*() iteration.
* Normally this will be used with a files ref_store, since that's
* where all reference backends will presumably store their
* per-worktree refs.
*/
#define DO_FOR_EACH_PER_WORKTREE_ONLY 0x02
struct ref_store;
/* refs backends */
/*
* Initialize the ref_store for the specified submodule, or for the
* main repository if submodule == NULL. These functions should call