refs: move object peeling into "object.c"

Peeling an object has nothing to do with refs, but we still have the
code in "refs.c". Move it over into "object.c", which is a more natural
place to put it.

Ideally, we'd also move `peel_iterated_oid()` over into "object.c". But
this function is tied to the refs interfaces because it uses a global
ref iterator variable to optimize peeling when the iterator already has
the peeled object ID readily available.

Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Patrick Steinhardt 2024-05-17 10:18:59 +02:00 committed by Junio C Hamano
parent 330a2ae60b
commit 19c76e8235
4 changed files with 55 additions and 56 deletions

View file

@ -207,6 +207,27 @@ struct object *lookup_object_by_type(struct repository *r,
}
}
enum peel_status peel_object(const struct object_id *name, struct object_id *oid)
{
struct object *o = lookup_unknown_object(the_repository, name);
if (o->type == OBJ_NONE) {
int type = oid_object_info(the_repository, name, NULL);
if (type < 0 || !object_as_type(o, type, 0))
return PEEL_INVALID;
}
if (o->type != OBJ_TAG)
return PEEL_NON_TAG;
o = deref_tag_noverify(o);
if (!o)
return PEEL_INVALID;
oidcpy(oid, &o->oid);
return PEEL_PEELED;
}
struct object *parse_object_buffer(struct repository *r, const struct object_id *oid, enum object_type type, unsigned long size, void *buffer, int *eaten_p)
{
struct object *obj;

View file

@ -256,6 +256,40 @@ struct object *lookup_unknown_object(struct repository *r, const struct object_i
struct object *lookup_object_by_type(struct repository *r, const struct object_id *oid,
enum object_type type);
enum peel_status {
/* object was peeled successfully: */
PEEL_PEELED = 0,
/*
* object cannot be peeled because the named object (or an
* object referred to by a tag in the peel chain), does not
* exist.
*/
PEEL_INVALID = -1,
/* object cannot be peeled because it is not a tag: */
PEEL_NON_TAG = -2,
/* ref_entry contains no peeled value because it is a symref: */
PEEL_IS_SYMREF = -3,
/*
* ref_entry cannot be peeled because it is broken (i.e., the
* symbolic reference cannot even be resolved to an object
* name):
*/
PEEL_BROKEN = -4
};
/*
* Peel the named object; i.e., if the object is a tag, resolve the
* tag recursively until a non-tag is found. If successful, store the
* result to oid and return PEEL_PEELED. If the object is not a tag
* or is not valid, return PEEL_NON_TAG or PEEL_INVALID, respectively,
* and leave oid unchanged.
*/
enum peel_status peel_object(const struct object_id *name, struct object_id *oid);
struct object_list *object_list_insert(struct object *item,
struct object_list **list_p);

22
refs.c
View file

@ -19,7 +19,6 @@
#include "object-store-ll.h"
#include "object.h"
#include "path.h"
#include "tag.h"
#include "submodule.h"
#include "worktree.h"
#include "strvec.h"
@ -425,27 +424,6 @@ static int for_each_filter_refs(const char *refname,
return filter->fn(refname, oid, flags, filter->cb_data);
}
enum peel_status peel_object(const struct object_id *name, struct object_id *oid)
{
struct object *o = lookup_unknown_object(the_repository, name);
if (o->type == OBJ_NONE) {
int type = oid_object_info(the_repository, name, NULL);
if (type < 0 || !object_as_type(o, type, 0))
return PEEL_INVALID;
}
if (o->type != OBJ_TAG)
return PEEL_NON_TAG;
o = deref_tag_noverify(o);
if (!o)
return PEEL_INVALID;
oidcpy(oid, &o->oid);
return PEEL_PEELED;
}
struct warn_if_dangling_data {
struct ref_store *refs;
FILE *fp;

View file

@ -69,40 +69,6 @@ int ref_resolves_to_object(const char *refname,
const struct object_id *oid,
unsigned int flags);
enum peel_status {
/* object was peeled successfully: */
PEEL_PEELED = 0,
/*
* object cannot be peeled because the named object (or an
* object referred to by a tag in the peel chain), does not
* exist.
*/
PEEL_INVALID = -1,
/* object cannot be peeled because it is not a tag: */
PEEL_NON_TAG = -2,
/* ref_entry contains no peeled value because it is a symref: */
PEEL_IS_SYMREF = -3,
/*
* ref_entry cannot be peeled because it is broken (i.e., the
* symbolic reference cannot even be resolved to an object
* name):
*/
PEEL_BROKEN = -4
};
/*
* Peel the named object; i.e., if the object is a tag, resolve the
* tag recursively until a non-tag is found. If successful, store the
* result to oid and return PEEL_PEELED. If the object is not a tag
* or is not valid, return PEEL_NON_TAG or PEEL_INVALID, respectively,
* and leave oid unchanged.
*/
enum peel_status peel_object(const struct object_id *name, struct object_id *oid);
/**
* Information needed for a single ref update. Set new_oid to the new
* value or to null_oid to delete the ref. To check the old value