From: Jonathan Nieder <jrnie...@gmail.com>

Add a repository argument to allow callers of lookup_object to be more
specific about which repository to handle. 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.

The included coccinelle semantic patch will adapt any new callers in
the diff produced by `make coccicheck`.

Signed-off-by: Jonathan Nieder <jrnie...@gmail.com>
Signed-off-by: Stefan Beller <sbel...@google.com>
---
 blob.c                                 | 2 +-
 builtin/fast-export.c                  | 5 +++--
 builtin/fsck.c                         | 5 +++--
 builtin/name-rev.c                     | 3 ++-
 builtin/prune.c                        | 2 +-
 builtin/unpack-objects.c               | 2 +-
 commit.c                               | 2 +-
 contrib/coccinelle/object_parser.cocci | 7 +++++++
 fetch-pack.c                           | 8 ++++----
 http-push.c                            | 2 +-
 object.c                               | 8 ++++----
 object.h                               | 3 ++-
 reachable.c                            | 4 ++--
 tag.c                                  | 2 +-
 tree.c                                 | 2 +-
 upload-pack.c                          | 2 +-
 16 files changed, 35 insertions(+), 24 deletions(-)

diff --git a/blob.c b/blob.c
index 85c2143f29..a9f3aa2ec8 100644
--- a/blob.c
+++ b/blob.c
@@ -6,7 +6,7 @@ const char *blob_type = "blob";
 
 struct blob *lookup_blob(const struct object_id *oid)
 {
-       struct object *obj = lookup_object(oid->hash);
+       struct object *obj = lookup_object(the_repository, oid->hash);
        if (!obj)
                return create_object(the_repository, oid->hash,
                                     alloc_blob_node());
diff --git a/builtin/fast-export.c b/builtin/fast-export.c
index 6140caf8d8..642bafdd30 100644
--- a/builtin/fast-export.c
+++ b/builtin/fast-export.c
@@ -230,7 +230,7 @@ static void export_blob(const struct object_id *oid)
        if (is_null_oid(oid))
                return;
 
-       object = lookup_object(oid->hash);
+       object = lookup_object(the_repository, oid->hash);
        if (object && object->flags & SHOWN)
                return;
 
@@ -402,7 +402,8 @@ static void show_filemodify(struct diff_queue_struct *q,
                                                   anonymize_sha1(&spec->oid) :
                                                   spec->oid.hash));
                        else {
-                               struct object *object = 
lookup_object(spec->oid.hash);
+                               struct object *object = 
lookup_object(the_repository,
+                                                                     
spec->oid.hash);
                                printf("M %06o :%d ", spec->mode,
                                       get_object_mark(object));
                        }
diff --git a/builtin/fsck.c b/builtin/fsck.c
index 9408ae5cc6..7645418821 100644
--- a/builtin/fsck.c
+++ b/builtin/fsck.c
@@ -395,7 +395,7 @@ static void fsck_handle_reflog_oid(const char *refname, 
struct object_id *oid,
        struct object *obj;
 
        if (!is_null_oid(oid)) {
-               obj = lookup_object(oid->hash);
+               obj = lookup_object(the_repository, oid->hash);
                if (obj && (obj->flags & HAS_OBJ)) {
                        if (timestamp && name_objects)
                                add_decoration(fsck_walk_options.object_names,
@@ -736,7 +736,8 @@ int cmd_fsck(int argc, const char **argv, const char 
*prefix)
                const char *arg = argv[i];
                struct object_id oid;
                if (!get_oid(arg, &oid)) {
-                       struct object *obj = lookup_object(oid.hash);
+                       struct object *obj = lookup_object(the_repository,
+                                                          oid.hash);
 
                        if (!obj || !(obj->flags & HAS_OBJ)) {
                                error("%s: object missing", oid_to_hex(&oid));
diff --git a/builtin/name-rev.c b/builtin/name-rev.c
index c6b253eefb..45ec5515cc 100644
--- a/builtin/name-rev.c
+++ b/builtin/name-rev.c
@@ -363,7 +363,8 @@ static void name_rev_line(char *p, struct name_ref_data 
*data)
                        *(p+1) = 0;
                        if (!get_oid(p - (GIT_SHA1_HEXSZ - 1), &oid)) {
                                struct object *o =
-                                       lookup_object(oid.hash);
+                                       lookup_object(the_repository,
+                                                     oid.hash);
                                if (o)
                                        name = get_rev_name(o, &buf);
                        }
diff --git a/builtin/prune.c b/builtin/prune.c
index 7891048b35..06e6de45b5 100644
--- a/builtin/prune.c
+++ b/builtin/prune.c
@@ -40,7 +40,7 @@ static int prune_object(const struct object_id *oid, const 
char *fullpath,
         * Do we know about this object?
         * It must have been reachable
         */
-       if (lookup_object(oid->hash))
+       if (lookup_object(the_repository, oid->hash))
                return 0;
 
        if (lstat(fullpath, &st)) {
diff --git a/builtin/unpack-objects.c b/builtin/unpack-objects.c
index ee707068b3..e26f673a15 100644
--- a/builtin/unpack-objects.c
+++ b/builtin/unpack-objects.c
@@ -329,7 +329,7 @@ static int resolve_against_held(unsigned nr, const struct 
object_id *base,
 {
        struct object *obj;
        struct obj_buffer *obj_buffer;
-       obj = lookup_object(base->hash);
+       obj = lookup_object(the_repository, base->hash);
        if (!obj)
                return 0;
        obj_buffer = lookup_object_buffer(obj);
diff --git a/commit.c b/commit.c
index e315d5435b..68967e6c59 100644
--- a/commit.c
+++ b/commit.c
@@ -50,7 +50,7 @@ struct commit *lookup_commit_or_die(const struct object_id 
*oid, const char *ref
 
 struct commit *lookup_commit(const struct object_id *oid)
 {
-       struct object *obj = lookup_object(oid->hash);
+       struct object *obj = lookup_object(the_repository, oid->hash);
        if (!obj)
                return create_object(the_repository, oid->hash,
                                     alloc_commit_node());
diff --git a/contrib/coccinelle/object_parser.cocci 
b/contrib/coccinelle/object_parser.cocci
index 2a554084d1..d57b0f16d4 100644
--- a/contrib/coccinelle/object_parser.cocci
+++ b/contrib/coccinelle/object_parser.cocci
@@ -12,3 +12,10 @@ expression F;
  create_object(
 + the_repository,
  E, F)
+
+@@
+expression E;
+@@
+ lookup_object(
++the_repository,
+ E)
diff --git a/fetch-pack.c b/fetch-pack.c
index 0f7aeabb64..02ac850967 100644
--- a/fetch-pack.c
+++ b/fetch-pack.c
@@ -360,7 +360,7 @@ static int find_common(struct fetch_pack_args *args,
                 * interested in the case we *know* the object is
                 * reachable and we have already scanned it.
                 */
-               if (((o = lookup_object(remote->hash)) != NULL) &&
+               if (((o = lookup_object(the_repository, remote->hash)) != NULL) 
&&
                                (o->flags & COMPLETE)) {
                        continue;
                }
@@ -429,7 +429,7 @@ static int find_common(struct fetch_pack_args *args,
                        if (skip_prefix(line, "unshallow ", &arg)) {
                                if (get_oid_hex(arg, &oid))
                                        die(_("invalid unshallow line: %s"), 
line);
-                               if (!lookup_object(oid.hash))
+                               if (!lookup_object(the_repository, oid.hash))
                                        die(_("object not found: %s"), line);
                                /* make sure that it is parsed as shallow */
                                if (!parse_object(the_repository, &oid))
@@ -751,7 +751,7 @@ 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(ref->old_oid.hash),
+               struct object *o = deref_tag(lookup_object(the_repository, 
ref->old_oid.hash),
                                             NULL, 0);
 
                if (!o || o->type != OBJ_COMMIT || !(o->flags & COMPLETE))
@@ -770,7 +770,7 @@ static int everything_local(struct fetch_pack_args *args,
                const struct object_id *remote = &ref->old_oid;
                struct object *o;
 
-               o = lookup_object(remote->hash);
+               o = lookup_object(the_repository, remote->hash);
                if (!o || !(o->flags & COMPLETE)) {
                        retval = 0;
                        print_verbose(args, "want %s (%s)", oid_to_hex(remote),
diff --git a/http-push.c b/http-push.c
index b4c3cd1cd7..5149c1b425 100644
--- a/http-push.c
+++ b/http-push.c
@@ -722,7 +722,7 @@ static void one_remote_object(const struct object_id *oid)
 {
        struct object *obj;
 
-       obj = lookup_object(oid->hash);
+       obj = lookup_object(the_repository, oid->hash);
        if (!obj)
                obj = parse_object(the_repository, oid);
 
diff --git a/object.c b/object.c
index 1126c7e278..681fa40eb1 100644
--- a/object.c
+++ b/object.c
@@ -81,7 +81,7 @@ static void insert_obj_hash(struct object *obj, struct object 
**hash, unsigned i
  * Look up the record for the given sha1 in the hash map stored in
  * obj_hash.  Return NULL if it was not found.
  */
-struct object *lookup_object(const unsigned char *sha1)
+struct object *lookup_object_the_repository(const unsigned char *sha1)
 {
        unsigned int i, first;
        struct object *obj;
@@ -175,7 +175,7 @@ void *object_as_type(struct object *obj, enum object_type 
type, int quiet)
 
 struct object *lookup_unknown_object(const unsigned char *sha1)
 {
-       struct object *obj = lookup_object(sha1);
+       struct object *obj = lookup_object(the_repository, sha1);
        if (!obj)
                obj = create_object(the_repository, sha1,
                                    alloc_object_node());
@@ -251,7 +251,7 @@ struct object *parse_object_the_repository(const struct 
object_id *oid)
        void *buffer;
        struct object *obj;
 
-       obj = lookup_object(oid->hash);
+       obj = lookup_object(the_repository, oid->hash);
        if (obj && obj->parsed)
                return obj;
 
@@ -263,7 +263,7 @@ struct object *parse_object_the_repository(const struct 
object_id *oid)
                        return NULL;
                }
                parse_blob_buffer(lookup_blob(oid), NULL, 0);
-               return lookup_object(oid->hash);
+               return lookup_object(the_repository, oid->hash);
        }
 
        buffer = read_sha1_file(oid->hash, &type, &size);
diff --git a/object.h b/object.h
index ac12dc3629..727a03ebd6 100644
--- a/object.h
+++ b/object.h
@@ -98,7 +98,8 @@ extern struct object *get_indexed_object(unsigned int);
  * half-initialised objects, the caller is expected to initialize them
  * by calling parse_object() on them.
  */
-struct object *lookup_object(const unsigned char *sha1);
+#define lookup_object(r, s) lookup_object_##r(s)
+struct object *lookup_object_the_repository(const unsigned char *sha1);
 
 #define create_object(r, s, o) create_object_##r(s, o)
 extern void *create_object_the_repository(const unsigned char *sha1, void 
*obj);
diff --git a/reachable.c b/reachable.c
index 7e7b9525c0..4007c6428b 100644
--- a/reachable.c
+++ b/reachable.c
@@ -109,7 +109,7 @@ static int add_recent_loose(const struct object_id *oid,
                            const char *path, void *data)
 {
        struct stat st;
-       struct object *obj = lookup_object(oid->hash);
+       struct object *obj = lookup_object(the_repository, oid->hash);
 
        if (obj && obj->flags & SEEN)
                return 0;
@@ -134,7 +134,7 @@ static int add_recent_packed(const struct object_id *oid,
                             struct packed_git *p, uint32_t pos,
                             void *data)
 {
-       struct object *obj = lookup_object(oid->hash);
+       struct object *obj = lookup_object(the_repository, oid->hash);
 
        if (obj && obj->flags & SEEN)
                return 0;
diff --git a/tag.c b/tag.c
index a9e5af4294..3712ef7867 100644
--- a/tag.c
+++ b/tag.c
@@ -94,7 +94,7 @@ struct object *deref_tag_noverify(struct object *o)
 
 struct tag *lookup_tag(const struct object_id *oid)
 {
-       struct object *obj = lookup_object(oid->hash);
+       struct object *obj = lookup_object(the_repository, oid->hash);
        if (!obj)
                return create_object(the_repository, oid->hash,
                                     alloc_tag_node());
diff --git a/tree.c b/tree.c
index f8e1e6d63d..8f0ee6c8c0 100644
--- a/tree.c
+++ b/tree.c
@@ -196,7 +196,7 @@ int read_tree(struct tree *tree, int stage, struct pathspec 
*match,
 
 struct tree *lookup_tree(const struct object_id *oid)
 {
-       struct object *obj = lookup_object(oid->hash);
+       struct object *obj = lookup_object(the_repository, oid->hash);
        if (!obj)
                return create_object(the_repository, oid->hash,
                                     alloc_tree_node());
diff --git a/upload-pack.c b/upload-pack.c
index b076cbc5f7..8716e28d4f 100644
--- a/upload-pack.c
+++ b/upload-pack.c
@@ -556,7 +556,7 @@ static int get_reachable_list(struct object_array *src,
                if (namebuf[40] != '\n' || get_oid_hex(namebuf, &sha1))
                        break;
 
-               o = lookup_object(sha1.hash);
+               o = lookup_object(the_repository, sha1.hash);
                if (o && o->type == OBJ_COMMIT) {
                        o->flags &= ~TMP_MARK;
                }
-- 
2.15.1.433.g936d1b9894.dirty

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