Add a repository argument to allow the callers of deref_tag
to be more specific about which repository to act on. This is a small
mechanical change; it doesn't change the implementation to handle
repositories other than the_repository yet.

As with the previous commits, use a macro to catch callers passing a
repository other than the_repository at compile time.

Signed-off-by: Jonathan Nieder <jrnie...@gmail.com>
Signed-off-by: Stefan Beller <sbel...@google.com>
---
 blame.c                 |  6 +++---
 builtin/diff.c          |  2 +-
 builtin/fmt-merge-msg.c |  3 ++-
 builtin/grep.c          |  3 ++-
 builtin/name-rev.c      |  3 ++-
 commit.c                |  3 ++-
 fetch-pack.c            |  9 ++++++---
 http-backend.c          |  2 +-
 http-push.c             |  2 +-
 line-log.c              |  2 +-
 merge-recursive.c       |  3 ++-
 remote.c                |  6 ++++--
 server-info.c           |  2 +-
 sha1-name.c             | 11 +++++++----
 shallow.c               |  4 +++-
 tag.c                   |  2 +-
 tag.h                   |  3 ++-
 upload-pack.c           |  2 +-
 18 files changed, 42 insertions(+), 26 deletions(-)

diff --git a/blame.c b/blame.c
index 50808c0ff44..aad53c0f904 100644
--- a/blame.c
+++ b/blame.c
@@ -1674,7 +1674,7 @@ static struct commit *find_single_final(struct rev_info 
*revs,
                struct object *obj = revs->pending.objects[i].item;
                if (obj->flags & UNINTERESTING)
                        continue;
-               obj = deref_tag(obj, NULL, 0);
+               obj = deref_tag(the_repository, obj, NULL, 0);
                if (obj->type != OBJ_COMMIT)
                        die("Non commit %s?", revs->pending.objects[i].name);
                if (found)
@@ -1705,7 +1705,7 @@ static struct commit *dwim_reverse_initial(struct 
rev_info *revs,
 
        /* Is that sole rev a committish? */
        obj = revs->pending.objects[0].item;
-       obj = deref_tag(obj, NULL, 0);
+       obj = deref_tag(the_repository, obj, NULL, 0);
        if (obj->type != OBJ_COMMIT)
                return NULL;
 
@@ -1741,7 +1741,7 @@ static struct commit *find_single_initial(struct rev_info 
*revs,
                struct object *obj = revs->pending.objects[i].item;
                if (!(obj->flags & UNINTERESTING))
                        continue;
-               obj = deref_tag(obj, NULL, 0);
+               obj = deref_tag(the_repository, obj, NULL, 0);
                if (obj->type != OBJ_COMMIT)
                        die("Non commit %s?", revs->pending.objects[i].name);
                if (found)
diff --git a/builtin/diff.c b/builtin/diff.c
index 0b7d0d612dd..1dd7dd4a267 100644
--- a/builtin/diff.c
+++ b/builtin/diff.c
@@ -395,7 +395,7 @@ int cmd_diff(int argc, const char **argv, const char 
*prefix)
                int flags = (obj->flags & UNINTERESTING);
                if (!obj->parsed)
                        obj = parse_object(the_repository, &obj->oid);
-               obj = deref_tag(obj, NULL, 0);
+               obj = deref_tag(the_repository, obj, NULL, 0);
                if (!obj)
                        die(_("invalid object '%s' given."), name);
                if (obj->type == OBJ_COMMIT)
diff --git a/builtin/fmt-merge-msg.c b/builtin/fmt-merge-msg.c
index 36318ef46e7..ff165c0fcd2 100644
--- a/builtin/fmt-merge-msg.c
+++ b/builtin/fmt-merge-msg.c
@@ -344,7 +344,8 @@ static void shortlog(const char *name,
        const struct object_id *oid = &origin_data->oid;
        int limit = opts->shortlog_len;
 
-       branch = deref_tag(parse_object(the_repository, oid), oid_to_hex(oid),
+       branch = deref_tag(the_repository, parse_object(the_repository, oid),
+                          oid_to_hex(oid),
                           GIT_SHA1_HEXSZ);
        if (!branch || branch->type != OBJ_COMMIT)
                return;
diff --git a/builtin/grep.c b/builtin/grep.c
index 6e7bc76785a..c93c33cd28f 100644
--- a/builtin/grep.c
+++ b/builtin/grep.c
@@ -646,7 +646,8 @@ static int grep_objects(struct grep_opt *opt, const struct 
pathspec *pathspec,
 
        for (i = 0; i < nr; i++) {
                struct object *real_obj;
-               real_obj = deref_tag(list->objects[i].item, NULL, 0);
+               real_obj = deref_tag(the_repository, list->objects[i].item,
+                                    NULL, 0);
 
                /* load the gitmodules file for this rev */
                if (recurse_submodules) {
diff --git a/builtin/name-rev.c b/builtin/name-rev.c
index f6eb419a029..f1cb45c2274 100644
--- a/builtin/name-rev.c
+++ b/builtin/name-rev.c
@@ -455,7 +455,8 @@ int cmd_name_rev(int argc, const char **argv, const char 
*prefix)
                commit = NULL;
                object = parse_object(the_repository, &oid);
                if (object) {
-                       struct object *peeled = deref_tag(object, *argv, 0);
+                       struct object *peeled = deref_tag(the_repository,
+                                                         object, *argv, 0);
                        if (peeled && peeled->type == OBJ_COMMIT)
                                commit = (struct commit *)peeled;
                }
diff --git a/commit.c b/commit.c
index ba06918ba41..ede31c46931 100644
--- a/commit.c
+++ b/commit.c
@@ -26,7 +26,8 @@ const char *commit_type = "commit";
 struct commit *lookup_commit_reference_gently_the_repository(
                const struct object_id *oid, int quiet)
 {
-       struct object *obj = deref_tag(parse_object(the_repository, oid),
+       struct object *obj = deref_tag(the_repository,
+                                      parse_object(the_repository, oid),
                                       NULL, 0);
 
        if (!obj)
diff --git a/fetch-pack.c b/fetch-pack.c
index 74ac2977e85..358d8421a8f 100644
--- a/fetch-pack.c
+++ b/fetch-pack.c
@@ -126,7 +126,8 @@ static void rev_list_push(struct commit *commit, int mark)
 
 static int rev_list_insert_ref(const char *refname, const struct object_id 
*oid)
 {
-       struct object *o = deref_tag(parse_object(the_repository, oid),
+       struct object *o = deref_tag(the_repository,
+                                    parse_object(the_repository, oid),
                                     refname, 0);
 
        if (o && o->type == OBJ_COMMIT)
@@ -144,7 +145,8 @@ static int rev_list_insert_ref_oid(const char *refname, 
const struct object_id *
 static int clear_marks(const char *refname, const struct object_id *oid,
                       int flag, void *cb_data)
 {
-       struct object *o = deref_tag(parse_object(the_repository, oid),
+       struct object *o = deref_tag(the_repository,
+                                    parse_object(the_repository, oid),
                                     refname, 0);
 
        if (o && o->type == OBJ_COMMIT)
@@ -802,7 +804,8 @@ static int everything_local(struct fetch_pack_args *args,
                 * Don't mark them common yet; the server has to be told so 
first.
                 */
                for (ref = *refs; ref; ref = ref->next) {
-                       struct object *o = 
deref_tag(lookup_object(the_repository,
+                       struct object *o = deref_tag(the_repository,
+                                                    
lookup_object(the_repository,
                                                     ref->old_oid.hash),
                                                     NULL, 0);
 
diff --git a/http-backend.c b/http-backend.c
index 50ba4d53d54..bd0442a805a 100644
--- a/http-backend.c
+++ b/http-backend.c
@@ -442,7 +442,7 @@ static int show_text_ref(const char *name, const struct 
object_id *oid,
 
        strbuf_addf(buf, "%s\t%s\n", oid_to_hex(oid), name_nons);
        if (o->type == OBJ_TAG) {
-               o = deref_tag(o, name, 0);
+               o = deref_tag(the_repository, o, name, 0);
                if (!o)
                        return 0;
                strbuf_addf(buf, "%s\t%s^{}\n", oid_to_hex(&o->oid),
diff --git a/http-push.c b/http-push.c
index 94ae9671def..61cdd40822a 100644
--- a/http-push.c
+++ b/http-push.c
@@ -1477,7 +1477,7 @@ static void add_remote_info_ref(struct remote_ls_ctx *ls)
                    oid_to_hex(&ref->old_oid), ls->dentry_name);
 
        if (o->type == OBJ_TAG) {
-               o = deref_tag(o, ls->dentry_name, 0);
+               o = deref_tag(the_repository, o, ls->dentry_name, 0);
                if (o)
                        strbuf_addf(buf, "%s\t%s^{}\n",
                                    oid_to_hex(&o->oid), ls->dentry_name);
diff --git a/line-log.c b/line-log.c
index ecdce08c4be..34c4a93c5b2 100644
--- a/line-log.c
+++ b/line-log.c
@@ -479,7 +479,7 @@ static struct commit *check_single_commit(struct rev_info 
*revs)
                struct object *obj = revs->pending.objects[i].item;
                if (obj->flags & UNINTERESTING)
                        continue;
-               obj = deref_tag(obj, NULL, 0);
+               obj = deref_tag(the_repository, obj, NULL, 0);
                if (obj->type != OBJ_COMMIT)
                        die("Non commit %s?", revs->pending.objects[i].name);
                if (commit)
diff --git a/merge-recursive.c b/merge-recursive.c
index 1b06f25b38c..9013aabed9a 100644
--- a/merge-recursive.c
+++ b/merge-recursive.c
@@ -2184,7 +2184,8 @@ static struct commit *get_ref(const struct object_id 
*oid, const char *name)
 {
        struct object *object;
 
-       object = deref_tag(parse_object(the_repository, oid), name,
+       object = deref_tag(the_repository, parse_object(the_repository, oid),
+                          name,
                           strlen(name));
        if (!object)
                return NULL;
diff --git a/remote.c b/remote.c
index 2a6ff7d60c1..0bf5ce3e7ba 100644
--- a/remote.c
+++ b/remote.c
@@ -1995,12 +1995,14 @@ int ref_newer(const struct object_id *new_oid, const 
struct object_id *old_oid)
         * Both new_commit and old_commit must be commit-ish and new_commit is 
descendant of
         * old_commit.  Otherwise we require --force.
         */
-       o = deref_tag(parse_object(the_repository, old_oid), NULL, 0);
+       o = deref_tag(the_repository, parse_object(the_repository, old_oid),
+                     NULL, 0);
        if (!o || o->type != OBJ_COMMIT)
                return 0;
        old_commit = (struct commit *) o;
 
-       o = deref_tag(parse_object(the_repository, new_oid), NULL, 0);
+       o = deref_tag(the_repository, parse_object(the_repository, new_oid),
+                     NULL, 0);
        if (!o || o->type != OBJ_COMMIT)
                return 0;
        new_commit = (struct commit *) o;
diff --git a/server-info.c b/server-info.c
index 368fb547f4b..e83797c3caf 100644
--- a/server-info.c
+++ b/server-info.c
@@ -64,7 +64,7 @@ static int add_info_ref(const char *path, const struct 
object_id *oid,
                return -1;
 
        if (o->type == OBJ_TAG) {
-               o = deref_tag(o, path, 0);
+               o = deref_tag(the_repository, o, path, 0);
                if (o)
                        if (fprintf(fp, "%s     %s^{}\n",
                                oid_to_hex(&o->oid), path) < 0)
diff --git a/sha1-name.c b/sha1-name.c
index 98b66c4896c..27cf9cd916e 100644
--- a/sha1-name.c
+++ b/sha1-name.c
@@ -239,7 +239,8 @@ static int disambiguate_committish_only(const struct 
object_id *oid, void *cb_da
                return 0;
 
        /* We need to do this the hard way... */
-       obj = deref_tag(parse_object(the_repository, oid), NULL, 0);
+       obj = deref_tag(the_repository, parse_object(the_repository, oid),
+                       NULL, 0);
        if (obj && obj->type == OBJ_COMMIT)
                return 1;
        return 0;
@@ -263,7 +264,8 @@ static int disambiguate_treeish_only(const struct object_id 
*oid, void *cb_data_
                return 0;
 
        /* We need to do this the hard way... */
-       obj = deref_tag(parse_object(the_repository, oid), NULL, 0);
+       obj = deref_tag(the_repository, parse_object(the_repository, oid),
+                       NULL, 0);
        if (obj && (obj->type == OBJ_TREE || obj->type == OBJ_COMMIT))
                return 1;
        return 0;
@@ -934,7 +936,7 @@ static int peel_onion(const char *name, int len, struct 
object_id *oid,
        if (!o)
                return -1;
        if (!expected_type) {
-               o = deref_tag(o, name, sp - name - 2);
+               o = deref_tag(the_repository, o, name, sp - name - 2);
                if (!o || (!o->parsed && !parse_object(the_repository, 
&o->oid)))
                        return -1;
                oidcpy(oid, &o->oid);
@@ -1066,7 +1068,8 @@ static int handle_one_ref(const char *path, const struct 
object_id *oid,
        if (!object)
                return 0;
        if (object->type == OBJ_TAG) {
-               object = deref_tag(object, path, strlen(path));
+               object = deref_tag(the_repository, object, path,
+                                  strlen(path));
                if (!object)
                        return 0;
        }
diff --git a/shallow.c b/shallow.c
index 60fe1fe1e58..c65cb17195e 100644
--- a/shallow.c
+++ b/shallow.c
@@ -96,7 +96,9 @@ struct commit_list *get_shallow_commits(struct object_array 
*heads, int depth,
                        if (i < heads->nr) {
                                int **depth_slot;
                                commit = (struct commit *)
-                                       deref_tag(heads->objects[i++].item, 
NULL, 0);
+                                       deref_tag(the_repository,
+                                                 heads->objects[i++].item,
+                                                 NULL, 0);
                                if (!commit || commit->object.type != 
OBJ_COMMIT) {
                                        commit = NULL;
                                        continue;
diff --git a/tag.c b/tag.c
index 4971fd4dfc9..fbb4659325b 100644
--- a/tag.c
+++ b/tag.c
@@ -64,7 +64,7 @@ int gpg_verify_tag(const struct object_id *oid, const char 
*name_to_report,
        return ret;
 }
 
-struct object *deref_tag(struct object *o, const char *warn, int warnlen)
+struct object *deref_tag_the_repository(struct object *o, const char *warn, 
int warnlen)
 {
        while (o && o->type == OBJ_TAG)
                if (((struct tag *)o)->tagged)
diff --git a/tag.h b/tag.h
index 149959c81ba..45b0b08b1f6 100644
--- a/tag.h
+++ b/tag.h
@@ -17,7 +17,8 @@ extern struct tag *lookup_tag_the_repository(const struct 
object_id *oid);
 extern int parse_tag_buffer_the_repository(struct tag *item, const void *data, 
unsigned long size);
 extern int parse_tag(struct tag *item);
 extern void release_tag_memory(struct tag *t);
-extern struct object *deref_tag(struct object *, const char *, int);
+#define deref_tag(r, o, w, l) deref_tag_##r(o, w, l)
+extern struct object *deref_tag_the_repository(struct object *, const char *, 
int);
 extern struct object *deref_tag_noverify(struct object *);
 extern int gpg_verify_tag(const struct object_id *oid,
                const char *name_to_report, unsigned flags);
diff --git a/upload-pack.c b/upload-pack.c
index 20e61180e48..1d7d6917f24 100644
--- a/upload-pack.c
+++ b/upload-pack.c
@@ -380,7 +380,7 @@ static int ok_to_give_up(void)
 
                if (want->flags & COMMON_KNOWN)
                        continue;
-               want = deref_tag(want, "a want line", 0);
+               want = deref_tag(the_repository, want, "a want line", 0);
                if (!want || want->type != OBJ_COMMIT) {
                        /* no way to tell if this is reachable by
                         * looking at the ancestry chain alone, so
-- 
2.18.0.rc1.244.gcf134e6275-goog

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