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refs API: make refs_rename_ref_available() static

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Move the refs_rename_ref_available() function into
"refs/files-backend.c". It is file-backend specific.

This function was added in 5fe7d825da (refs.c: pass a list of names
to skip to is_refname_available, 2014-05-01) as rename_ref_available()
and was only ever used in this one file-backend specific codepath. So
let's move it there.

Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Ævar Arnfjörð Bjarmason
2021-10-16 11:39:11 +02:00
committed by Junio C Hamano
parent df3458e957
commit c339ff690f
3 changed files with 29 additions and 33 deletions
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14
refs/refs-internal.h
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@ -228,20 +228,6 @@ const char *find_descendant_ref(const char *dirname,
const struct string_list *extras,
const struct string_list *skip);
/*
* Check whether an attempt to rename old_refname to new_refname would
* cause a D/F conflict with any existing reference (other than
* possibly old_refname). If there would be a conflict, emit an error
* message and return false; otherwise, return true.
*
* Note that this function is not safe against all races with other
* processes (though rename_ref() catches some races that might get by
* this check).
*/
int refs_rename_ref_available(struct ref_store *refs,
const char *old_refname,
const char *new_refname);
/* We allow "recursive" symbolic refs. Only within reason, though */
#define SYMREF_MAXDEPTH 5