/*
* Copyright (c) 2017 Stefan Sperling <stsp@openbsd.org>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
/* A symbolic reference. */
struct got_symref {
char *name;
char *ref;
};
/* A non-symbolic reference (there is no better designation). */
struct got_ref {
char *name;
u_int8_t sha1[SHA1_DIGEST_LENGTH];
};
/* A reference which points to an arbitrary object. */
struct got_reference {
unsigned int flags;
#define GOT_REF_IS_SYMBOLIC 0x01
union {
struct got_ref ref;
struct got_symref symref;
} ref;
};
/* Well-known reference names. */
#define GOT_REF_HEAD "HEAD"
#define GOT_REF_ORIG_HEAD "ORIG_HEAD"
#define GOT_REF_MERGE_HEAD "MERGE_HEAD"
#define GOT_REF_FETCH_HEAD "FETCH_HEAD"
struct got_repository;
struct got_object_id;
const struct got_error * got_ref_open(struct got_reference **,
struct got_repository *, const char *);
void got_ref_close(struct got_reference *);
struct got_reference *got_ref_dup(struct got_reference *);
const struct got_error *got_ref_resolve(struct got_object_id **,
struct got_repository *, struct got_reference *);
