add: warn when adding an embedded repository

diff --git a/remote.c b/remote.c
index 801137c72ebb2edf196811a8031db603c61f376d..3649d60cdce7335f6bc5bcca4810ce869dacfdcf 100644 (file)
--- a/remote.c
+++ b/remote.c
@@ -477,26 +477,6 @@ static void read_config(void)
        alias_all_urls();
 }
 
-/*
- * This function frees a refspec array.
- * Warning: code paths should be checked to ensure that the src
- *          and dst pointers are always freeable pointers as well
- *          as the refspec pointer itself.
- */
-static void free_refspecs(struct refspec *refspec, int nr_refspec)
-{
-       int i;
-
-       if (!refspec)
-               return;
-
-       for (i = 0; i < nr_refspec; i++) {
-               free(refspec[i].src);
-               free(refspec[i].dst);
-       }
-       free(refspec);
-}
-
 static struct refspec *parse_refspec_internal(int nr_refspec, const char **refspec, int fetch, int verify)
 {
        int i;
@@ -610,7 +590,7 @@ static struct refspec *parse_refspec_internal(int nr_refspec, const char **refsp
                 * since it is only possible to reach this point from within
                 * the for loop above.
                 */
-               free_refspecs(rs, i+1);
+               free_refspec(i+1, rs);
                return NULL;
        }
        die("Invalid refspec '%s'", refspec[i]);
@@ -621,7 +601,7 @@ int valid_fetch_refspec(const char *fetch_refspec_str)
        struct refspec *refspec;
 
        refspec = parse_refspec_internal(1, &fetch_refspec_str, 1, 1);
-       free_refspecs(refspec, 1);
+       free_refspec(1, refspec);
        return !!refspec;
 }
 
@@ -638,6 +618,10 @@ struct refspec *parse_push_refspec(int nr_refspec, const char **refspec)
 void free_refspec(int nr_refspec, struct refspec *refspec)
 {
        int i;
+
+       if (!refspec)
+               return;
+
        for (i = 0; i < nr_refspec; i++) {
                free(refspec[i].src);
                free(refspec[i].dst);
@@ -649,7 +633,12 @@ static int valid_remote_nick(const char *name)
 {
        if (!name[0] || is_dot_or_dotdot(name))
                return 0;
-       return !strchr(name, '/'); /* no slash */
+
+       /* remote nicknames cannot contain slashes */
+       while (*name)
+               if (is_dir_sep(*name++))
+                       return 0;
+       return 1;
 }
 
 const char *remote_for_branch(struct branch *branch, int *explicit)
@@ -1191,9 +1180,10 @@ static int match_explicit(struct ref *src, struct ref *dst,
                else if (is_null_oid(&matched_src->new_oid))
                        error("unable to delete '%s': remote ref does not exist",
                              dst_value);
-               else if ((dst_guess = guess_ref(dst_value, matched_src)))
+               else if ((dst_guess = guess_ref(dst_value, matched_src))) {
                        matched_dst = make_linked_ref(dst_guess, dst_tail);
-               else
+                       free(dst_guess);
+               } else
                        error("unable to push to unqualified destination: %s\n"
                              "The destination refspec neither matches an "
                              "existing ref on the remote nor\n"
@@ -1296,7 +1286,7 @@ static void add_to_tips(struct tips *tips, const struct object_id *oid)
 
        if (is_null_oid(oid))
                return;
-       commit = lookup_commit_reference_gently(oid->hash, 1);
+       commit = lookup_commit_reference_gently(oid, 1);
        if (!commit || (commit->object.flags & TMP_MARK))
                return;
        commit->object.flags |= TMP_MARK;
@@ -1358,7 +1348,8 @@ static void add_missing_tags(struct ref *src, struct ref **dst, struct ref ***ds
 
                        if (is_null_oid(&ref->new_oid))
                                continue;
-                       commit = lookup_commit_reference_gently(ref->new_oid.hash, 1);
+                       commit = lookup_commit_reference_gently(&ref->new_oid,
+                                                               1);
                        if (!commit)
                                /* not pushing a commit, which is not an error */
                                continue;
@@ -1585,8 +1576,8 @@ void set_ref_status_for_push(struct ref *remote_refs, int send_mirror,
                                reject_reason = REF_STATUS_REJECT_ALREADY_EXISTS;
                        else if (!has_object_file(&ref->old_oid))
                                reject_reason = REF_STATUS_REJECT_FETCH_FIRST;
-                       else if (!lookup_commit_reference_gently(ref->old_oid.hash, 1) ||
-                                !lookup_commit_reference_gently(ref->new_oid.hash, 1))
+                       else if (!lookup_commit_reference_gently(&ref->old_oid, 1) ||
+                                !lookup_commit_reference_gently(&ref->new_oid, 1))
                                reject_reason = REF_STATUS_REJECT_NEEDS_FORCE;
                        else if (!ref_newer(&ref->new_oid, &ref->old_oid))
                                reject_reason = REF_STATUS_REJECT_NONFASTFORWARD;
@@ -1953,12 +1944,12 @@ int ref_newer(const struct object_id *new_oid, const struct object_id *old_oid)
         * Both new and old must be commit-ish and new is descendant of
         * old.  Otherwise we require --force.
         */
-       o = deref_tag(parse_object(old_oid->hash), NULL, 0);
+       o = deref_tag(parse_object(old_oid), NULL, 0);
        if (!o || o->type != OBJ_COMMIT)
                return 0;
        old = (struct commit *) o;
 
-       o = deref_tag(parse_object(new_oid->hash), NULL, 0);
+       o = deref_tag(parse_object(new_oid), NULL, 0);
        if (!o || o->type != OBJ_COMMIT)
                return 0;
        new = (struct commit *) o;
@@ -2009,13 +2000,13 @@ int stat_tracking_info(struct branch *branch, int *num_ours, int *num_theirs,
        /* Cannot stat if what we used to build on no longer exists */
        if (read_ref(base, oid.hash))
                return -1;
-       theirs = lookup_commit_reference(oid.hash);
+       theirs = lookup_commit_reference(&oid);
        if (!theirs)
                return -1;
 
        if (read_ref(branch->refname, oid.hash))
                return -1;
-       ours = lookup_commit_reference(oid.hash);
+       ours = lookup_commit_reference(&oid);
        if (!ours)
                return -1;