struct ref_lock: convert old_sha1 member to object_id

Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu>
Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

diff --git a/refs.c b/refs.c
index 7515c2e9260ad66368c45569b9bfb3c63d212faa..a742d7925dfbd08ff7623427b74183406fdb85ec 100644 (file)
--- a/refs.c
+++ b/refs.c
@@ -10,7 +10,7 @@ struct ref_lock {
        char *ref_name;
        char *orig_ref_name;
        struct lock_file *lk;
-       unsigned char old_sha1[20];
+       struct object_id old_oid;
 };
 
 /*
@@ -2225,16 +2225,16 @@ static struct ref_lock *verify_lock(struct ref_lock *lock,
 {
        if (read_ref_full(lock->ref_name,
                          mustexist ? RESOLVE_REF_READING : 0,
-                         lock->old_sha1, NULL)) {
+                         lock->old_oid.hash, NULL)) {
                int save_errno = errno;
                error("Can't verify ref %s", lock->ref_name);
                unlock_ref(lock);
                errno = save_errno;
                return NULL;
        }
-       if (hashcmp(lock->old_sha1, old_sha1)) {
+       if (hashcmp(lock->old_oid.hash, old_sha1)) {
                error("Ref %s is at %s but expected %s", lock->ref_name,
-                       sha1_to_hex(lock->old_sha1), sha1_to_hex(old_sha1));
+                       oid_to_hex(&lock->old_oid), sha1_to_hex(old_sha1));
                unlock_ref(lock);
                errno = EBUSY;
                return NULL;
@@ -2382,7 +2382,7 @@ static struct ref_lock *lock_ref_sha1_basic(const char *refname,
        }
 
        refname = resolve_ref_unsafe(refname, resolve_flags,
-                                    lock->old_sha1, &type);
+                                    lock->old_oid.hash, &type);
        if (!refname && errno == EISDIR) {
                /* we are trying to lock foo but we used to
                 * have foo/bar which now does not exist;
@@ -2401,7 +2401,7 @@ static struct ref_lock *lock_ref_sha1_basic(const char *refname,
                        goto error_return;
                }
                refname = resolve_ref_unsafe(orig_refname, resolve_flags,
-                                            lock->old_sha1, &type);
+                                            lock->old_oid.hash, &type);
        }
        if (type_p)
            *type_p = type;
@@ -2421,7 +2421,7 @@ static struct ref_lock *lock_ref_sha1_basic(const char *refname,
         * refname, nor a packed ref whose name is a proper prefix of
         * our refname.
         */
-       if (is_null_sha1(lock->old_sha1) &&
+       if (is_null_oid(&lock->old_oid) &&
            verify_refname_available(refname, extras, skip,
                                     get_packed_refs(&ref_cache), err)) {
                last_errno = ENOTDIR;
@@ -2944,7 +2944,7 @@ int rename_ref(const char *oldrefname, const char *newrefname, const char *logms
                strbuf_release(&err);
                goto rollback;
        }
-       hashcpy(lock->old_sha1, orig_sha1);
+       hashcpy(lock->old_oid.hash, orig_sha1);
 
        if (write_ref_to_lockfile(lock, orig_sha1) ||
            commit_ref_update(lock, orig_sha1, logmsg)) {
@@ -3199,9 +3199,9 @@ static int commit_ref_update(struct ref_lock *lock,
                             const unsigned char *sha1, const char *logmsg)
 {
        clear_loose_ref_cache(&ref_cache);
-       if (log_ref_write(lock->ref_name, lock->old_sha1, sha1, logmsg) < 0 ||
+       if (log_ref_write(lock->ref_name, lock->old_oid.hash, sha1, logmsg) < 0 ||
            (strcmp(lock->ref_name, lock->orig_ref_name) &&
-            log_ref_write(lock->orig_ref_name, lock->old_sha1, sha1, logmsg) < 0)) {
+            log_ref_write(lock->orig_ref_name, lock->old_oid.hash, sha1, logmsg) < 0)) {
                unlock_ref(lock);
                return -1;
        }
@@ -3225,7 +3225,7 @@ static int commit_ref_update(struct ref_lock *lock,
                                              head_sha1, &head_flag);
                if (head_ref && (head_flag & REF_ISSYMREF) &&
                    !strcmp(head_ref, lock->ref_name))
-                       log_ref_write("HEAD", lock->old_sha1, sha1, logmsg);
+                       log_ref_write("HEAD", lock->old_oid.hash, sha1, logmsg);
        }
        if (commit_ref(lock)) {
                error("Couldn't set %s", lock->ref_name);
@@ -3923,7 +3923,7 @@ int ref_transaction_commit(struct ref_transaction *transaction,
                                                  (update->flags & REF_NODEREF));
 
                        if (!overwriting_symref &&
-                           !hashcmp(update->lock->old_sha1, update->new_sha1)) {
+                           !hashcmp(update->lock->old_oid.hash, update->new_sha1)) {
                                /*
                                 * The reference already has the desired
                                 * value, so we don't need to write it.