t4020: abstract away SHA-1-specific constants

diff --git a/object.c b/object.c
index 0afdfd19b784a541ad6d7237add2fbb1c9ec91ab..66cffaf6e516f181fa391ddab125fdc16cc71cb5 100644 (file)
--- a/object.c
+++ b/object.c
@@ -1,9 +1,12 @@
 #include "cache.h"
 #include "object.h"
+#include "replace-object.h"
 #include "blob.h"
 #include "tree.h"
 #include "commit.h"
 #include "tag.h"
+#include "object-store.h"
+#include "packfile.h"
 
 static struct object **obj_hash;
 static int nr_objs, obj_hash_size;
@@ -26,7 +29,7 @@ static const char *object_type_strings[] = {
        "tag",          /* OBJ_TAG = 4 */
 };
 
-const char *typename(unsigned int type)
+const char *type_name(unsigned int type)
 {
        if (type >= ARRAY_SIZE(object_type_strings))
                return NULL;
@@ -166,7 +169,7 @@ void *object_as_type(struct object *obj, enum object_type type, int quiet)
                if (!quiet)
                        error("object %s is a %s, not a %s",
                              oid_to_hex(&obj->oid),
-                             typename(obj->type), typename(type));
+                             type_name(obj->type), type_name(type));
                return NULL;
        }
 }
@@ -244,7 +247,7 @@ struct object *parse_object(const struct object_id *oid)
        unsigned long size;
        enum object_type type;
        int eaten;
-       const unsigned char *repl = lookup_replace_object(oid->hash);
+       const struct object_id *repl = lookup_replace_object(the_repository, oid);
        void *buffer;
        struct object *obj;
 
@@ -252,10 +255,10 @@ struct object *parse_object(const struct object_id *oid)
        if (obj && obj->parsed)
                return obj;
 
-       if ((obj && obj->type == OBJ_BLOB) ||
+       if ((obj && obj->type == OBJ_BLOB && has_object_file(oid)) ||
            (!obj && has_object_file(oid) &&
-            sha1_object_info(oid->hash, NULL) == OBJ_BLOB)) {
-               if (check_sha1_signature(repl, NULL, 0, NULL) < 0) {
+            oid_object_info(oid, NULL) == OBJ_BLOB)) {
+               if (check_object_signature(repl, NULL, 0, NULL) < 0) {
                        error("sha1 mismatch %s", oid_to_hex(oid));
                        return NULL;
                }
@@ -263,11 +266,11 @@ struct object *parse_object(const struct object_id *oid)
                return lookup_object(oid->hash);
        }
 
-       buffer = read_sha1_file(oid->hash, &type, &size);
+       buffer = read_object_file(oid, &type, &size);
        if (buffer) {
-               if (check_sha1_signature(repl, buffer, size, typename(type)) < 0) {
+               if (check_object_signature(repl, buffer, size, type_name(type)) < 0) {
                        free(buffer);
-                       error("sha1 mismatch %s", sha1_to_hex(repl));
+                       error("sha1 mismatch %s", oid_to_hex(repl));
                        return NULL;
                }
 
@@ -445,3 +448,43 @@ void clear_commit_marks_all(unsigned int flags)
                        obj->flags &= ~flags;
        }
 }
+
+struct raw_object_store *raw_object_store_new(void)
+{
+       struct raw_object_store *o = xmalloc(sizeof(*o));
+
+       memset(o, 0, sizeof(*o));
+       INIT_LIST_HEAD(&o->packed_git_mru);
+       return o;
+}
+
+static void free_alt_odb(struct alternate_object_database *alt)
+{
+       strbuf_release(&alt->scratch);
+       oid_array_clear(&alt->loose_objects_cache);
+       free(alt);
+}
+
+static void free_alt_odbs(struct raw_object_store *o)
+{
+       while (o->alt_odb_list) {
+               struct alternate_object_database *next;
+
+               next = o->alt_odb_list->next;
+               free_alt_odb(o->alt_odb_list);
+               o->alt_odb_list = next;
+       }
+}
+
+void raw_object_store_clear(struct raw_object_store *o)
+{
+       FREE_AND_NULL(o->objectdir);
+       FREE_AND_NULL(o->alternate_db);
+
+       free_alt_odbs(o);
+       o->alt_odb_tail = NULL;
+
+       INIT_LIST_HEAD(&o->packed_git_mru);
+       close_all_packs(o);
+       o->packed_git = NULL;
+}