pull: support pull.ff config
[gitweb.git] / refs.c
diff --git a/refs.c b/refs.c
index 8480d8dbf5c78c28d895c9c1a2ac7aa5305f4e5e..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;
 };
 
 /*
@@ -161,7 +161,7 @@ struct ref_value {
         * null.  If REF_ISSYMREF, then this is the name of the object
         * referred to by the last reference in the symlink chain.
         */
-       unsigned char sha1[20];
+       struct object_id oid;
 
        /*
         * If REF_KNOWS_PEELED, then this field holds the peeled value
@@ -169,7 +169,7 @@ struct ref_value {
         * be peelable.  See the documentation for peel_ref() for an
         * exact definition of "peelable".
         */
-       unsigned char peeled[20];
+       struct object_id peeled;
 };
 
 struct ref_cache;
@@ -351,8 +351,8 @@ static struct ref_entry *create_ref_entry(const char *refname,
                die("Reference has invalid format: '%s'", refname);
        len = strlen(refname) + 1;
        ref = xmalloc(sizeof(struct ref_entry) + len);
-       hashcpy(ref->u.value.sha1, sha1);
-       hashclr(ref->u.value.peeled);
+       hashcpy(ref->u.value.oid.hash, sha1);
+       oidclr(&ref->u.value.peeled);
        memcpy(ref->name, refname, len);
        ref->flag = flag;
        return ref;
@@ -626,7 +626,7 @@ static int is_dup_ref(const struct ref_entry *ref1, const struct ref_entry *ref2
                /* This is impossible by construction */
                die("Reference directory conflict: %s", ref1->name);
 
-       if (hashcmp(ref1->u.value.sha1, ref2->u.value.sha1))
+       if (oidcmp(&ref1->u.value.oid, &ref2->u.value.oid))
                die("Duplicated ref, and SHA1s don't match: %s", ref1->name);
 
        warning("Duplicated ref: %s", ref1->name);
@@ -674,7 +674,7 @@ static int ref_resolves_to_object(struct ref_entry *entry)
 {
        if (entry->flag & REF_ISBROKEN)
                return 0;
-       if (!has_sha1_file(entry->u.value.sha1)) {
+       if (!has_sha1_file(entry->u.value.oid.hash)) {
                error("%s does not point to a valid object!", entry->name);
                return 0;
        }
@@ -722,7 +722,7 @@ static int do_one_ref(struct ref_entry *entry, void *cb_data)
        /* Store the old value, in case this is a recursive call: */
        old_current_ref = current_ref;
        current_ref = entry;
-       retval = data->fn(entry->name + data->trim, entry->u.value.sha1,
+       retval = data->fn(entry->name + data->trim, &entry->u.value.oid,
                          entry->flag, data->cb_data);
        current_ref = old_current_ref;
        return retval;
@@ -1258,7 +1258,7 @@ static void read_packed_refs(FILE *f, struct ref_dir *dir)
                    line.len == PEELED_LINE_LENGTH &&
                    line.buf[PEELED_LINE_LENGTH - 1] == '\n' &&
                    !get_sha1_hex(line.buf + 1, sha1)) {
-                       hashcpy(last->u.value.peeled, sha1);
+                       hashcpy(last->u.value.peeled.hash, sha1);
                        /*
                         * Regardless of what the file header said,
                         * we definitely know the value of *this*
@@ -1439,7 +1439,7 @@ static int resolve_gitlink_packed_ref(struct ref_cache *refs,
        if (ref == NULL)
                return -1;
 
-       hashcpy(sha1, ref->u.value.sha1);
+       hashcpy(sha1, ref->u.value.oid.hash);
        return 0;
 }
 
@@ -1526,7 +1526,7 @@ static int resolve_missing_loose_ref(const char *refname,
         */
        entry = get_packed_ref(refname);
        if (entry) {
-               hashcpy(sha1, entry->u.value.sha1);
+               hashcpy(sha1, entry->u.value.oid.hash);
                if (flags)
                        *flags |= REF_ISPACKED;
                return 0;
@@ -1756,13 +1756,14 @@ int ref_exists(const char *refname)
        return !!resolve_ref_unsafe(refname, RESOLVE_REF_READING, sha1, NULL);
 }
 
-static int filter_refs(const char *refname, const unsigned char *sha1, int flags,
-                      void *data)
+static int filter_refs(const char *refname, const struct object_id *oid,
+                          int flags, void *data)
 {
        struct ref_filter *filter = (struct ref_filter *)data;
+
        if (wildmatch(filter->pattern, refname, 0, NULL))
                return 0;
-       return filter->fn(refname, sha1, flags, filter->cb_data);
+       return filter->fn(refname, oid, flags, filter->cb_data);
 }
 
 enum peel_status {
@@ -1836,9 +1837,9 @@ static enum peel_status peel_entry(struct ref_entry *entry, int repeel)
        if (entry->flag & REF_KNOWS_PEELED) {
                if (repeel) {
                        entry->flag &= ~REF_KNOWS_PEELED;
-                       hashclr(entry->u.value.peeled);
+                       oidclr(&entry->u.value.peeled);
                } else {
-                       return is_null_sha1(entry->u.value.peeled) ?
+                       return is_null_oid(&entry->u.value.peeled) ?
                                PEEL_NON_TAG : PEEL_PEELED;
                }
        }
@@ -1847,7 +1848,7 @@ static enum peel_status peel_entry(struct ref_entry *entry, int repeel)
        if (entry->flag & REF_ISSYMREF)
                return PEEL_IS_SYMREF;
 
-       status = peel_object(entry->u.value.sha1, entry->u.value.peeled);
+       status = peel_object(entry->u.value.oid.hash, entry->u.value.peeled.hash);
        if (status == PEEL_PEELED || status == PEEL_NON_TAG)
                entry->flag |= REF_KNOWS_PEELED;
        return status;
@@ -1862,7 +1863,7 @@ int peel_ref(const char *refname, unsigned char *sha1)
                            || !strcmp(current_ref->name, refname))) {
                if (peel_entry(current_ref, 0))
                        return -1;
-               hashcpy(sha1, current_ref->u.value.peeled);
+               hashcpy(sha1, current_ref->u.value.peeled.hash);
                return 0;
        }
 
@@ -1882,7 +1883,7 @@ int peel_ref(const char *refname, unsigned char *sha1)
                if (r) {
                        if (peel_entry(r, 0))
                                return -1;
-                       hashcpy(sha1, r->u.value.peeled);
+                       hashcpy(sha1, r->u.value.peeled.hash);
                        return 0;
                }
        }
@@ -1897,17 +1898,17 @@ struct warn_if_dangling_data {
        const char *msg_fmt;
 };
 
-static int warn_if_dangling_symref(const char *refname, const unsigned char *sha1,
+static int warn_if_dangling_symref(const char *refname, const struct object_id *oid,
                                   int flags, void *cb_data)
 {
        struct warn_if_dangling_data *d = cb_data;
        const char *resolves_to;
-       unsigned char junk[20];
+       struct object_id junk;
 
        if (!(flags & REF_ISSYMREF))
                return 0;
 
-       resolves_to = resolve_ref_unsafe(refname, 0, junk, NULL);
+       resolves_to = resolve_ref_unsafe(refname, 0, junk.hash, NULL);
        if (!resolves_to
            || (d->refname
                ? strcmp(resolves_to, d->refname)
@@ -2027,18 +2028,18 @@ static int do_for_each_ref(struct ref_cache *refs, const char *base,
 
 static int do_head_ref(const char *submodule, each_ref_fn fn, void *cb_data)
 {
-       unsigned char sha1[20];
+       struct object_id oid;
        int flag;
 
        if (submodule) {
-               if (resolve_gitlink_ref(submodule, "HEAD", sha1) == 0)
-                       return fn("HEAD", sha1, 0, cb_data);
+               if (resolve_gitlink_ref(submodule, "HEAD", oid.hash) == 0)
+                       return fn("HEAD", &oid, 0, cb_data);
 
                return 0;
        }
 
-       if (!read_ref_full("HEAD", RESOLVE_REF_READING, sha1, &flag))
-               return fn("HEAD", sha1, flag, cb_data);
+       if (!read_ref_full("HEAD", RESOLVE_REF_READING, oid.hash, &flag))
+               return fn("HEAD", &oid, flag, cb_data);
 
        return 0;
 }
@@ -2113,12 +2114,12 @@ int head_ref_namespaced(each_ref_fn fn, void *cb_data)
 {
        struct strbuf buf = STRBUF_INIT;
        int ret = 0;
-       unsigned char sha1[20];
+       struct object_id oid;
        int flag;
 
        strbuf_addf(&buf, "%sHEAD", get_git_namespace());
-       if (!read_ref_full(buf.buf, RESOLVE_REF_READING, sha1, &flag))
-               ret = fn(buf.buf, sha1, flag, cb_data);
+       if (!read_ref_full(buf.buf, RESOLVE_REF_READING, oid.hash, &flag))
+               ret = fn(buf.buf, &oid, flag, cb_data);
        strbuf_release(&buf);
 
        return ret;
@@ -2224,16 +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;
@@ -2381,7 +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;
@@ -2400,7 +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;
@@ -2420,7 +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;
@@ -2496,9 +2497,9 @@ static int write_packed_entry_fn(struct ref_entry *entry, void *cb_data)
        if (peel_status != PEEL_PEELED && peel_status != PEEL_NON_TAG)
                error("internal error: %s is not a valid packed reference!",
                      entry->name);
-       write_packed_entry(cb_data, entry->name, entry->u.value.sha1,
+       write_packed_entry(cb_data, entry->name, entry->u.value.oid.hash,
                           peel_status == PEEL_PEELED ?
-                          entry->u.value.peeled : NULL);
+                          entry->u.value.peeled.hash : NULL);
        return 0;
 }
 
@@ -2615,24 +2616,24 @@ static int pack_if_possible_fn(struct ref_entry *entry, void *cb_data)
        peel_status = peel_entry(entry, 1);
        if (peel_status != PEEL_PEELED && peel_status != PEEL_NON_TAG)
                die("internal error peeling reference %s (%s)",
-                   entry->name, sha1_to_hex(entry->u.value.sha1));
+                   entry->name, oid_to_hex(&entry->u.value.oid));
        packed_entry = find_ref(cb->packed_refs, entry->name);
        if (packed_entry) {
                /* Overwrite existing packed entry with info from loose entry */
                packed_entry->flag = REF_ISPACKED | REF_KNOWS_PEELED;
-               hashcpy(packed_entry->u.value.sha1, entry->u.value.sha1);
+               oidcpy(&packed_entry->u.value.oid, &entry->u.value.oid);
        } else {
-               packed_entry = create_ref_entry(entry->name, entry->u.value.sha1,
+               packed_entry = create_ref_entry(entry->name, entry->u.value.oid.hash,
                                                REF_ISPACKED | REF_KNOWS_PEELED, 0);
                add_ref(cb->packed_refs, packed_entry);
        }
-       hashcpy(packed_entry->u.value.peeled, entry->u.value.peeled);
+       oidcpy(&packed_entry->u.value.peeled, &entry->u.value.peeled);
 
        /* Schedule the loose reference for pruning if requested. */
        if ((cb->flags & PACK_REFS_PRUNE)) {
                int namelen = strlen(entry->name) + 1;
                struct ref_to_prune *n = xcalloc(1, sizeof(*n) + namelen);
-               hashcpy(n->sha1, entry->u.value.sha1);
+               hashcpy(n->sha1, entry->u.value.oid.hash);
                strcpy(n->name, entry->name);
                n->next = cb->ref_to_prune;
                cb->ref_to_prune = n;
@@ -2943,7 +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)) {
@@ -3198,9 +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;
        }
@@ -3224,7 +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);
@@ -3616,11 +3617,12 @@ static int do_for_each_reflog(struct strbuf *name, each_ref_fn fn, void *cb_data
                                strbuf_addch(name, '/');
                                retval = do_for_each_reflog(name, fn, cb_data);
                        } else {
-                               unsigned char sha1[20];
-                               if (read_ref_full(name->buf, 0, sha1, NULL))
+                               struct object_id oid;
+
+                               if (read_ref_full(name->buf, 0, oid.hash, NULL))
                                        retval = error("bad ref for %s", name->buf);
                                else
-                                       retval = fn(name->buf, sha1, 0, cb_data);
+                                       retval = fn(name->buf, &oid, 0, cb_data);
                        }
                        if (retval)
                                break;
@@ -3921,7 +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.