return obj_hash[idx];
}
-const char *type_names[] = {
- "none", "commit", "tree", "blob", "tag",
- "bad type 5", "bad type 6", "delta", "bad",
+static const char *object_type_strings[] = {
+ NULL, /* OBJ_NONE = 0 */
+ "commit", /* OBJ_COMMIT = 1 */
+ "tree", /* OBJ_TREE = 2 */
+ "blob", /* OBJ_BLOB = 3 */
+ "tag", /* OBJ_TAG = 4 */
};
+const char *typename(unsigned int type)
+{
+ if (type >= ARRAY_SIZE(object_type_strings))
+ return NULL;
+ return object_type_strings[type];
+}
+
+int type_from_string(const char *str)
+{
+ int i;
+
+ for (i = 1; i < ARRAY_SIZE(object_type_strings); i++)
+ if (!strcmp(str, object_type_strings[i]))
+ return i;
+ die("invalid object type \"%s\"", str);
+}
+
static unsigned int hash_obj(struct object *obj, unsigned int n)
{
unsigned int hash = *(unsigned int *)obj->sha1;
obj_hash_size = new_hash_size;
}
-void created_object(const unsigned char *sha1, struct object *obj)
+void *create_object(const unsigned char *sha1, int type, void *o)
{
+ struct object *obj = o;
+
obj->parsed = 0;
obj->used = 0;
- obj->type = OBJ_NONE;
+ obj->type = type;
obj->flags = 0;
hashcpy(obj->sha1, sha1);
insert_obj_hash(obj, obj_hash, obj_hash_size);
nr_objs++;
+ return obj;
}
-struct object *lookup_object_type(const unsigned char *sha1, const char *type)
-{
- if (!type) {
- return lookup_unknown_object(sha1);
- } else if (!strcmp(type, blob_type)) {
- return &lookup_blob(sha1)->object;
- } else if (!strcmp(type, tree_type)) {
- return &lookup_tree(sha1)->object;
- } else if (!strcmp(type, commit_type)) {
- return &lookup_commit(sha1)->object;
- } else if (!strcmp(type, tag_type)) {
- return &lookup_tag(sha1)->object;
- } else {
- error("Unknown type %s", type);
- return NULL;
- }
-}
-
-union any_object {
- struct object object;
- struct commit commit;
- struct tree tree;
- struct blob blob;
- struct tag tag;
-};
-
struct object *lookup_unknown_object(const unsigned char *sha1)
{
struct object *obj = lookup_object(sha1);
- if (!obj) {
- union any_object *ret = xcalloc(1, sizeof(*ret));
- created_object(sha1, &ret->object);
- ret->object.type = OBJ_NONE;
- return &ret->object;
- }
+ if (!obj)
+ obj = create_object(sha1, OBJ_NONE, alloc_object_node());
return obj;
}
-struct object *parse_object(const unsigned char *sha1)
+struct object *parse_object_buffer(const unsigned char *sha1, enum object_type type, unsigned long size, void *buffer, int *eaten_p)
{
- unsigned long size;
- char type[20];
- void *buffer = read_sha1_file(sha1, type, &size);
- if (buffer) {
- struct object *obj;
- if (check_sha1_signature(sha1, buffer, size, type) < 0)
- printf("sha1 mismatch %s\n", sha1_to_hex(sha1));
- if (!strcmp(type, blob_type)) {
- struct blob *blob = lookup_blob(sha1);
+ struct object *obj;
+ int eaten = 0;
+
+ obj = NULL;
+ if (type == OBJ_BLOB) {
+ struct blob *blob = lookup_blob(sha1);
+ if (blob) {
parse_blob_buffer(blob, buffer, size);
obj = &blob->object;
- } else if (!strcmp(type, tree_type)) {
- struct tree *tree = lookup_tree(sha1);
+ }
+ } else if (type == OBJ_TREE) {
+ struct tree *tree = lookup_tree(sha1);
+ if (tree) {
obj = &tree->object;
if (!tree->object.parsed) {
parse_tree_buffer(tree, buffer, size);
- buffer = NULL;
+ eaten = 1;
}
- } else if (!strcmp(type, commit_type)) {
- struct commit *commit = lookup_commit(sha1);
+ }
+ } else if (type == OBJ_COMMIT) {
+ struct commit *commit = lookup_commit(sha1);
+ if (commit) {
parse_commit_buffer(commit, buffer, size);
if (!commit->buffer) {
commit->buffer = buffer;
- buffer = NULL;
+ eaten = 1;
}
obj = &commit->object;
- } else if (!strcmp(type, tag_type)) {
- struct tag *tag = lookup_tag(sha1);
+ }
+ } else if (type == OBJ_TAG) {
+ struct tag *tag = lookup_tag(sha1);
+ if (tag) {
parse_tag_buffer(tag, buffer, size);
obj = &tag->object;
- } else {
- obj = NULL;
}
- free(buffer);
+ } else {
+ warning("object %s has unknown type id %d\n", sha1_to_hex(sha1), type);
+ obj = NULL;
+ }
+ if (obj && obj->type == OBJ_NONE)
+ obj->type = type;
+ *eaten_p = eaten;
+ return obj;
+}
+
+struct object *parse_object(const unsigned char *sha1)
+{
+ unsigned long size;
+ enum object_type type;
+ int eaten;
+ void *buffer = read_sha1_file(sha1, &type, &size);
+
+ if (buffer) {
+ struct object *obj;
+ if (check_sha1_signature(sha1, buffer, size, typename(type)) < 0) {
+ free(buffer);
+ error("sha1 mismatch %s\n", sha1_to_hex(sha1));
+ return NULL;
+ }
+
+ obj = parse_object_buffer(sha1, type, size, buffer, &eaten);
+ if (!eaten)
+ free(buffer);
return obj;
}
return NULL;
}
void add_object_array(struct object *obj, const char *name, struct object_array *array)
+{
+ add_object_array_with_mode(obj, name, array, S_IFINVALID);
+}
+
+void add_object_array_with_mode(struct object *obj, const char *name, struct object_array *array, unsigned mode)
{
unsigned nr = array->nr;
unsigned alloc = array->alloc;
}
objects[nr].item = obj;
objects[nr].name = name;
+ objects[nr].mode = mode;
array->nr = ++nr;
}