static int write_back(git_object *object)
{
int error;
git_oid new_id;
assert(object);
assert(object->source.open);
assert(object->modified);
object->source.raw.len = object->source.written_bytes;
if ((error = git_odb_write(&new_id, object->repo->db, &object->source.raw)) < GIT_SUCCESS)
return error;
if (!object->in_memory)
git_hashtable_remove(object->repo->objects, &object->id);
git_oid_cpy(&object->id, &new_id);
git_hashtable_insert(object->repo->objects, &object->id, object);
object->source.write_ptr = NULL;
object->source.written_bytes = 0;
object->modified = 0;
object->in_memory = 0;
git_object__source_close(object);
return GIT_SUCCESS;
}
static commit_object *commit_lookup(git_revwalk *walk, const git_oid *oid)
{
commit_object *commit;
if ((commit = git_hashtable_lookup(walk->commits, oid)) != NULL)
return commit;
commit = alloc_commit(walk);
if (commit == NULL)
return NULL;
git_oid_cpy(&commit->oid, oid);
if (git_hashtable_insert(walk->commits, &commit->oid, commit) < GIT_SUCCESS) {
free(commit);
return NULL;
}
return commit;
}
static git_revwalk_commit *commit_to_walkcommit(git_revwalk *walk, git_commit *commit_object)
{
git_revwalk_commit *commit;
commit = (git_revwalk_commit *)git_hashtable_lookup(walk->commits, commit_object);
if (commit != NULL)
return commit;
commit = git__malloc(sizeof(git_revwalk_commit));
if (commit == NULL)
return NULL;
memset(commit, 0x0, sizeof(git_revwalk_commit));
commit->commit_object = commit_object;
GIT_OBJECT_INCREF(commit_object);
git_hashtable_insert(walk->commits, commit_object, commit);
return commit;
}
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;
}