D-FINE / src /core /yaml_utils.py
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"""
Copied from RT-DETR (https://github.com/lyuwenyu/RT-DETR)
Copyright(c) 2023 lyuwenyu. All Rights Reserved.
"""
import copy
import os
from typing import Any, Dict, List, Optional
import yaml
from .workspace import GLOBAL_CONFIG
__all__ = [
"load_config",
"merge_config",
"merge_dict",
"parse_cli",
]
INCLUDE_KEY = "__include__"
def load_config(file_path, cfg=dict()):
"""load config"""
_, ext = os.path.splitext(file_path)
assert ext in [".yml", ".yaml"], "only support yaml files"
with open(file_path) as f:
file_cfg = yaml.load(f, Loader=yaml.Loader)
if file_cfg is None:
return {}
if INCLUDE_KEY in file_cfg:
base_yamls = list(file_cfg[INCLUDE_KEY])
for base_yaml in base_yamls:
if base_yaml.startswith("~"):
base_yaml = os.path.expanduser(base_yaml)
if not base_yaml.startswith("/"):
base_yaml = os.path.join(os.path.dirname(file_path), base_yaml)
with open(base_yaml) as f:
base_cfg = load_config(base_yaml, cfg)
merge_dict(cfg, base_cfg)
return merge_dict(cfg, file_cfg)
def merge_dict(dct, another_dct, inplace=True) -> Dict:
"""merge another_dct into dct"""
def _merge(dct, another) -> Dict:
for k in another:
if k in dct and isinstance(dct[k], dict) and isinstance(another[k], dict):
_merge(dct[k], another[k])
else:
dct[k] = another[k]
return dct
if not inplace:
dct = copy.deepcopy(dct)
return _merge(dct, another_dct)
def dictify(s: str, v: Any) -> Dict:
if "." not in s:
return {s: v}
key, rest = s.split(".", 1)
return {key: dictify(rest, v)}
def parse_cli(nargs: List[str]) -> Dict:
"""
parse command-line arguments
convert `a.c=3 b=10` to `{'a': {'c': 3}, 'b': 10}`
"""
cfg = {}
if nargs is None or len(nargs) == 0:
return cfg
for s in nargs:
s = s.strip()
k, v = s.split("=", 1)
d = dictify(k, yaml.load(v, Loader=yaml.Loader))
cfg = merge_dict(cfg, d)
return cfg
def merge_config(cfg, another_cfg=GLOBAL_CONFIG, inplace: bool = False, overwrite: bool = False):
"""
Merge another_cfg into cfg, return the merged config
Example:
cfg1 = load_config('./dfine_r18vd_6x_coco.yml')
cfg1 = merge_config(cfg, inplace=True)
cfg2 = load_config('./dfine_r50vd_6x_coco.yml')
cfg2 = merge_config(cfg2, inplace=True)
model1 = create(cfg1['model'], cfg1)
model2 = create(cfg2['model'], cfg2)
"""
def _merge(dct, another):
for k in another:
if k not in dct:
dct[k] = another[k]
elif isinstance(dct[k], dict) and isinstance(another[k], dict):
_merge(dct[k], another[k])
elif overwrite:
dct[k] = another[k]
return cfg
if not inplace:
cfg = copy.deepcopy(cfg)
return _merge(cfg, another_cfg)