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refs/iterator: implement seeking for files iterators

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Implement seeking for "files" iterators. As we simply use a ref-cache
iterator under the hood the implementation is straight-forward. Note
that we do not implement seeking on reflog iterators, same as with the
"reftable" backend.

Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Patrick Steinhardt 2025-03-12 16:56:21 +01:00 committed by Junio C Hamano
parent 22600c0452
commit a95da5c8ae
1 changed files with 16 additions and 0 deletions
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16
refs/files-backend.c
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@ -918,6 +918,14 @@ static int files_ref_iterator_advance(struct ref_iterator *ref_iterator)
return ok;
}
static int files_ref_iterator_seek(struct ref_iterator *ref_iterator,
const char *prefix)
{
struct files_ref_iterator *iter =
(struct files_ref_iterator *)ref_iterator;
return ref_iterator_seek(iter->iter0, prefix);
}
static int files_ref_iterator_peel(struct ref_iterator *ref_iterator,
struct object_id *peeled)
{
@ -936,6 +944,7 @@ static void files_ref_iterator_release(struct ref_iterator *ref_iterator)
static struct ref_iterator_vtable files_ref_iterator_vtable = {
.advance = files_ref_iterator_advance,
.seek = files_ref_iterator_seek,
.peel = files_ref_iterator_peel,
.release = files_ref_iterator_release,
};
@ -2294,6 +2303,12 @@ static int files_reflog_iterator_advance(struct ref_iterator *ref_iterator)
return ok;
}
static int files_reflog_iterator_seek(struct ref_iterator *ref_iterator UNUSED,
const char *prefix UNUSED)
{
BUG("ref_iterator_seek() called for reflog_iterator");
}
static int files_reflog_iterator_peel(struct ref_iterator *ref_iterator UNUSED,
struct object_id *peeled UNUSED)
{
@ -2309,6 +2324,7 @@ static void files_reflog_iterator_release(struct ref_iterator *ref_iterator)
static struct ref_iterator_vtable files_reflog_iterator_vtable = {
.advance = files_reflog_iterator_advance,
.seek = files_reflog_iterator_seek,
.peel = files_reflog_iterator_peel,
.release = files_reflog_iterator_release,
};