#include "builtin.h"
 #include "cache.h"
 #include "config.h"
+#include "object-store.h"
 #include "object.h"
 #include "delta.h"
 #include "pack.h"
        struct object *obj;
 };
 
+/* Remember to update object flag allocation in object.h */
 #define FLAG_OPEN (1u<<20)
 #define FLAG_WRITTEN (1u<<21)
 
        struct object_id oid;
 
        if (write_object_file(obj_buf->buffer, obj_buf->size,
-                             typename(obj->type), &oid) < 0)
+                             type_name(obj->type), &oid) < 0)
                die("failed to write object %s", oid_to_hex(&obj->oid));
        obj->flags |= FLAG_WRITTEN;
 }
 
        if (!(obj->flags & FLAG_OPEN)) {
                unsigned long size;
-               int type = sha1_object_info(obj->oid.hash, &size);
+               int type = oid_object_info(the_repository, &obj->oid, &size);
                if (type != obj->type || type <= 0)
                        die("object of unexpected type");
                obj->flags |= FLAG_WRITTEN;
        if (!obj_buf)
                die("Whoops! Cannot find object '%s'", oid_to_hex(&obj->oid));
        if (fsck_object(obj, obj_buf->buffer, obj_buf->size, &fsck_options))
-               die("Error in object");
+               die("fsck error in packed object");
        fsck_options.walk = check_object;
        if (fsck_walk(obj, NULL, &fsck_options))
                die("Error on reachable objects of %s", oid_to_hex(&obj->oid));
                         void *buf, unsigned long size)
 {
        if (!strict) {
-               if (write_object_file(buf, size, typename(type),
+               if (write_object_file(buf, size, type_name(type),
                                      &obj_list[nr].oid) < 0)
                        die("failed to write object");
                added_object(nr, type, buf, size);
                obj_list[nr].obj = NULL;
        } else if (type == OBJ_BLOB) {
                struct blob *blob;
-               if (write_object_file(buf, size, typename(type),
+               if (write_object_file(buf, size, type_name(type),
                                      &obj_list[nr].oid) < 0)
                        die("failed to write object");
                added_object(nr, type, buf, size);
                free(buf);
 
-               blob = lookup_blob(&obj_list[nr].oid);
+               blob = lookup_blob(the_repository, &obj_list[nr].oid);
                if (blob)
                        blob->object.flags |= FLAG_WRITTEN;
                else
        } else {
                struct object *obj;
                int eaten;
-               hash_object_file(buf, size, typename(type), &obj_list[nr].oid);
+               hash_object_file(buf, size, type_name(type), &obj_list[nr].oid);
                added_object(nr, type, buf, size);
-               obj = parse_object_buffer(&obj_list[nr].oid, type, size, buf,
+               obj = parse_object_buffer(the_repository, &obj_list[nr].oid,
+                                         type, size, buf,
                                          &eaten);
                if (!obj)
-                       die("invalid %s", typename(type));
+                       die("invalid %s", type_name(type));
                add_object_buffer(obj, buf, size);
                obj->flags |= FLAG_OPEN;
                obj_list[nr].obj = obj;
        struct delta_info *info;
 
        while ((info = *p) != NULL) {
-               if (!oidcmp(&info->base_oid, &obj_list[nr].oid) ||
+               if (oideq(&info->base_oid, &obj_list[nr].oid) ||
                    info->base_offset == obj_list[nr].offset) {
                        *p = info->next;
                        p = &delta_list;
 {
        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);
        if (resolve_against_held(nr, &base_oid, delta_data, delta_size))
                return;
 
-       base = read_sha1_file(base_oid.hash, &type, &base_size);
+       base = read_object_file(&base_oid, &type, &base_size);
        if (!base) {
                error("failed to read delta-pack base object %s",
                      oid_to_hex(&base_oid));
        int i;
        struct object_id oid;
 
-       check_replace_refs = 0;
+       read_replace_refs = 0;
 
        git_config(git_default_config, NULL);
 
        unpack_all();
        the_hash_algo->update_fn(&ctx, buffer, offset);
        the_hash_algo->final_fn(oid.hash, &ctx);
-       if (strict)
+       if (strict) {
                write_rest();
-       if (hashcmp(fill(the_hash_algo->rawsz), oid.hash))
+               if (fsck_finish(&fsck_options))
+                       die(_("fsck error in pack objects"));
+       }
+       if (!hasheq(fill(the_hash_algo->rawsz), oid.hash))
                die("final sha1 did not match");
        use(the_hash_algo->rawsz);