int git_odb_read_header(git_rawobj *out, git_odb *db, const git_oid *id) { unsigned int i; int error = GIT_ENOTFOUND; assert(out && db && id); for (i = 0; i < db->backends.length && error < 0; ++i) { backend_internal *internal = git_vector_get(&db->backends, i); git_odb_backend *b = internal->backend; if (b->read_header != NULL) error = b->read_header(out, b, id); } /* * no backend could read only the header. * try reading the whole object and freeing the contents */ if (error < 0) { error = git_odb_read(out, db, id); git_rawobj_close(out); } return error; }
void git_object__source_close(git_object *object) { assert(object); if (object->source.open) { git_rawobj_close(&object->source.raw); object->source.open = 0; } }
int git_object_lookup(git_object **object_out, git_repository *repo, const git_oid *id, git_otype type) { git_object *object = NULL; git_rawobj obj_file; int error = GIT_SUCCESS; assert(repo && object_out && id); object = git_hashtable_lookup(repo->objects, id); if (object != NULL) { *object_out = object; GIT_OBJECT_INCREF(repo, object); return GIT_SUCCESS; } error = git_odb_read(&obj_file, repo->db, id); if (error < GIT_SUCCESS) return error; if (type != GIT_OBJ_ANY && type != obj_file.type) { git_rawobj_close(&obj_file); return GIT_EINVALIDTYPE; } type = obj_file.type; if ((error = create_object(&object, type)) < GIT_SUCCESS) return error; /* Initialize parent object */ git_oid_cpy(&object->id, id); object->repo = repo; memcpy(&object->source.raw, &obj_file, sizeof(git_rawobj)); object->source.open = 1; switch (type) { case GIT_OBJ_COMMIT: error = git_commit__parse((git_commit *)object); break; case GIT_OBJ_TREE: error = git_tree__parse((git_tree *)object); break; case GIT_OBJ_TAG: error = git_tag__parse((git_tag *)object); break; case GIT_OBJ_BLOB: error = git_blob__parse((git_blob *)object); break; default: break; } if (error < GIT_SUCCESS) { git_object__free(object); return error; } git_object__source_close(object); git_hashtable_insert(repo->objects, &object->id, object); GIT_OBJECT_INCREF(repo, object); *object_out = object; return GIT_SUCCESS; }