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# SPDX-FileCopyrightText: 2013-2022 Blender Foundation
#
# SPDX-License-Identifier: GPL-2.0-or-later
import os
import traceback
import importlib
import typing
from typing import Optional, Iterable
from .utils.rig import RIG_DIR
from . import feature_set_list
def get_rigs(base_dir: str, base_path: list[str], *,
path: Iterable[str] = (),
feature_set=feature_set_list.DEFAULT_NAME):
""" Recursively searches for rig types, and returns a list.
Args:
base_dir: root directory
base_path: base dir where rigs are stored
path: rig path inside the base dir
feature_set: feature set that is being loaded
"""
rig_table = {}
impl_rigs = {}
dir_path = os.path.join(base_dir, *path)
try:
files = os.listdir(dir_path)
except FileNotFoundError:
files = []
files.sort()
for f in files:
is_dir = os.path.isdir(os.path.join(dir_path, f)) # Whether the file is a directory
# Stop cases
if f[0] in [".", "_"]:
continue
if f.count(".") >= 2 or (is_dir and "." in f):
print("Warning: %r, filename contains a '.', skipping" % os.path.join(*base_path, *path, f))
continue
if is_dir:
# Check for sub-rigs
sub_rigs, sub_impls = get_rigs(base_dir, base_path, path=[*path, f], feature_set=feature_set)
rig_table.update(sub_rigs)
impl_rigs.update(sub_impls)
elif f.endswith(".py"):
# Check straight-up python files
sub_path = [*path, f[:-3]]
key = '.'.join(sub_path)
# Don't reload rig modules - it breaks isinstance
rig_module = importlib.import_module('.'.join(base_path + sub_path))
if hasattr(rig_module, "Rig"):
rig_table[key] = {"module": rig_module,
"feature_set": feature_set}
if hasattr(rig_module, 'IMPLEMENTATION') and rig_module.IMPLEMENTATION:
impl_rigs[key] = rig_module
return rig_table, impl_rigs
# Public variables
rigs = {}
implementation_rigs = {}
def get_rig_class(name: str) -> Optional[typing.Type]:
try:
return rigs[name]["module"].Rig
except (KeyError, AttributeError):
return None
def get_internal_rigs():
global rigs, implementation_rigs
base_rigify_dir = os.path.dirname(__file__)
base_rigify_path = __name__.split('.')[:-1]
rigs, implementation_rigs = get_rigs(os.path.join(base_rigify_dir, RIG_DIR),
[*base_rigify_path, RIG_DIR])
def get_external_rigs(set_list):
# Clear and fill rigify rigs and implementation rigs public variables
for rig in list(rigs.keys()):
if rigs[rig]["feature_set"] != feature_set_list.DEFAULT_NAME:
rigs.pop(rig)
if rig in implementation_rigs:
implementation_rigs.pop(rig)
# Get external rigs
for feature_set in set_list:
# noinspection PyBroadException
try:
base_dir, base_path = feature_set_list.get_dir_path(feature_set, RIG_DIR)
external_rigs, external_impl_rigs = get_rigs(base_dir, base_path, feature_set=feature_set)
except Exception:
print(f"Rigify Error: Could not load feature set '{feature_set}' rigs: exception occurred.\n")
traceback.print_exc()
print("")
feature_set_list.mark_feature_set_exception(feature_set)
continue
rigs.update(external_rigs)
implementation_rigs.update(external_impl_rigs)
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