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425 lines
14 KiB
425 lines
14 KiB
2 years ago
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# ==========================================================
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# Modified from mmcv
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# ==========================================================
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import ast
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import os.path as osp
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import shutil
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import sys
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import tempfile
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from argparse import Action
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from importlib import import_module
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from addict import Dict
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from yapf.yapflib.yapf_api import FormatCode
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BASE_KEY = "_base_"
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DELETE_KEY = "_delete_"
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RESERVED_KEYS = ["filename", "text", "pretty_text", "get", "dump", "merge_from_dict"]
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def check_file_exist(filename, msg_tmpl='file "{}" does not exist'):
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if not osp.isfile(filename):
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raise FileNotFoundError(msg_tmpl.format(filename))
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class ConfigDict(Dict):
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def __missing__(self, name):
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raise KeyError(name)
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def __getattr__(self, name):
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try:
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value = super(ConfigDict, self).__getattr__(name)
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except KeyError:
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ex = AttributeError(f"'{self.__class__.__name__}' object has no " f"attribute '{name}'")
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except Exception as e:
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ex = e
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else:
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return value
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raise ex
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class SLConfig(object):
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"""
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config files.
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only support .py file as config now.
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ref: mmcv.utils.config
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Example:
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>>> cfg = Config(dict(a=1, b=dict(b1=[0, 1])))
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>>> cfg.a
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1
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>>> cfg.b
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{'b1': [0, 1]}
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>>> cfg.b.b1
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[0, 1]
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>>> cfg = Config.fromfile('tests/data/config/a.py')
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>>> cfg.filename
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"/home/kchen/projects/mmcv/tests/data/config/a.py"
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>>> cfg.item4
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'test'
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>>> cfg
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"Config [path: /home/kchen/projects/mmcv/tests/data/config/a.py]: "
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"{'item1': [1, 2], 'item2': {'a': 0}, 'item3': True, 'item4': 'test'}"
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"""
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@staticmethod
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def _validate_py_syntax(filename):
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with open(filename) as f:
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content = f.read()
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try:
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ast.parse(content)
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except SyntaxError:
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raise SyntaxError("There are syntax errors in config " f"file {filename}")
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@staticmethod
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def _file2dict(filename):
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filename = osp.abspath(osp.expanduser(filename))
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check_file_exist(filename)
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if filename.lower().endswith(".py"):
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with tempfile.TemporaryDirectory() as temp_config_dir:
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temp_config_file = tempfile.NamedTemporaryFile(dir=temp_config_dir, suffix=".py")
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temp_config_name = osp.basename(temp_config_file.name)
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shutil.copyfile(filename, osp.join(temp_config_dir, temp_config_name))
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temp_module_name = osp.splitext(temp_config_name)[0]
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sys.path.insert(0, temp_config_dir)
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SLConfig._validate_py_syntax(filename)
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mod = import_module(temp_module_name)
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sys.path.pop(0)
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cfg_dict = {
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name: value for name, value in mod.__dict__.items() if not name.startswith("__")
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}
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# delete imported module
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del sys.modules[temp_module_name]
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# close temp file
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temp_config_file.close()
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elif filename.lower().endswith((".yml", ".yaml", ".json")):
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from .slio import slload
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cfg_dict = slload(filename)
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else:
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raise IOError("Only py/yml/yaml/json type are supported now!")
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cfg_text = filename + "\n"
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with open(filename, "r") as f:
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cfg_text += f.read()
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# parse the base file
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if BASE_KEY in cfg_dict:
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cfg_dir = osp.dirname(filename)
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base_filename = cfg_dict.pop(BASE_KEY)
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base_filename = base_filename if isinstance(base_filename, list) else [base_filename]
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cfg_dict_list = list()
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cfg_text_list = list()
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for f in base_filename:
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_cfg_dict, _cfg_text = SLConfig._file2dict(osp.join(cfg_dir, f))
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cfg_dict_list.append(_cfg_dict)
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cfg_text_list.append(_cfg_text)
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base_cfg_dict = dict()
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for c in cfg_dict_list:
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if len(base_cfg_dict.keys() & c.keys()) > 0:
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raise KeyError("Duplicate key is not allowed among bases")
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# TODO Allow the duplicate key while warnning user
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base_cfg_dict.update(c)
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base_cfg_dict = SLConfig._merge_a_into_b(cfg_dict, base_cfg_dict)
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cfg_dict = base_cfg_dict
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# merge cfg_text
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cfg_text_list.append(cfg_text)
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cfg_text = "\n".join(cfg_text_list)
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return cfg_dict, cfg_text
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@staticmethod
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def _merge_a_into_b(a, b):
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"""merge dict `a` into dict `b` (non-inplace).
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values in `a` will overwrite `b`.
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copy first to avoid inplace modification
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Args:
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a ([type]): [description]
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b ([type]): [description]
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Returns:
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[dict]: [description]
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"""
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# import ipdb; ipdb.set_trace()
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if not isinstance(a, dict):
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return a
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b = b.copy()
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for k, v in a.items():
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if isinstance(v, dict) and k in b and not v.pop(DELETE_KEY, False):
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if not isinstance(b[k], dict) and not isinstance(b[k], list):
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# if :
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# import ipdb; ipdb.set_trace()
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raise TypeError(
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f"{k}={v} in child config cannot inherit from base "
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f"because {k} is a dict in the child config but is of "
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f"type {type(b[k])} in base config. You may set "
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f"`{DELETE_KEY}=True` to ignore the base config"
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)
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b[k] = SLConfig._merge_a_into_b(v, b[k])
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elif isinstance(b, list):
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try:
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_ = int(k)
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except:
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raise TypeError(
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f"b is a list, " f"index {k} should be an int when input but {type(k)}"
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)
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b[int(k)] = SLConfig._merge_a_into_b(v, b[int(k)])
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else:
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b[k] = v
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return b
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@staticmethod
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def fromfile(filename):
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cfg_dict, cfg_text = SLConfig._file2dict(filename)
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return SLConfig(cfg_dict, cfg_text=cfg_text, filename=filename)
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def __init__(self, cfg_dict=None, cfg_text=None, filename=None):
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if cfg_dict is None:
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cfg_dict = dict()
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elif not isinstance(cfg_dict, dict):
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raise TypeError("cfg_dict must be a dict, but " f"got {type(cfg_dict)}")
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for key in cfg_dict:
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if key in RESERVED_KEYS:
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raise KeyError(f"{key} is reserved for config file")
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super(SLConfig, self).__setattr__("_cfg_dict", ConfigDict(cfg_dict))
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super(SLConfig, self).__setattr__("_filename", filename)
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if cfg_text:
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text = cfg_text
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elif filename:
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with open(filename, "r") as f:
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text = f.read()
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else:
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text = ""
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super(SLConfig, self).__setattr__("_text", text)
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@property
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def filename(self):
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return self._filename
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@property
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def text(self):
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return self._text
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@property
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def pretty_text(self):
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indent = 4
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def _indent(s_, num_spaces):
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s = s_.split("\n")
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if len(s) == 1:
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return s_
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first = s.pop(0)
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s = [(num_spaces * " ") + line for line in s]
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s = "\n".join(s)
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s = first + "\n" + s
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return s
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def _format_basic_types(k, v, use_mapping=False):
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if isinstance(v, str):
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v_str = f"'{v}'"
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else:
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v_str = str(v)
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if use_mapping:
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k_str = f"'{k}'" if isinstance(k, str) else str(k)
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attr_str = f"{k_str}: {v_str}"
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else:
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attr_str = f"{str(k)}={v_str}"
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attr_str = _indent(attr_str, indent)
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return attr_str
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def _format_list(k, v, use_mapping=False):
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# check if all items in the list are dict
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if all(isinstance(_, dict) for _ in v):
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v_str = "[\n"
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v_str += "\n".join(
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f"dict({_indent(_format_dict(v_), indent)})," for v_ in v
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).rstrip(",")
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if use_mapping:
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k_str = f"'{k}'" if isinstance(k, str) else str(k)
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attr_str = f"{k_str}: {v_str}"
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else:
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attr_str = f"{str(k)}={v_str}"
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attr_str = _indent(attr_str, indent) + "]"
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else:
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attr_str = _format_basic_types(k, v, use_mapping)
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return attr_str
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def _contain_invalid_identifier(dict_str):
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contain_invalid_identifier = False
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for key_name in dict_str:
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contain_invalid_identifier |= not str(key_name).isidentifier()
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return contain_invalid_identifier
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def _format_dict(input_dict, outest_level=False):
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r = ""
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s = []
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use_mapping = _contain_invalid_identifier(input_dict)
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if use_mapping:
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r += "{"
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for idx, (k, v) in enumerate(input_dict.items()):
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is_last = idx >= len(input_dict) - 1
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end = "" if outest_level or is_last else ","
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if isinstance(v, dict):
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v_str = "\n" + _format_dict(v)
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if use_mapping:
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k_str = f"'{k}'" if isinstance(k, str) else str(k)
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attr_str = f"{k_str}: dict({v_str}"
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else:
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attr_str = f"{str(k)}=dict({v_str}"
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attr_str = _indent(attr_str, indent) + ")" + end
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elif isinstance(v, list):
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attr_str = _format_list(k, v, use_mapping) + end
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else:
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attr_str = _format_basic_types(k, v, use_mapping) + end
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s.append(attr_str)
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r += "\n".join(s)
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if use_mapping:
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r += "}"
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return r
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cfg_dict = self._cfg_dict.to_dict()
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text = _format_dict(cfg_dict, outest_level=True)
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# copied from setup.cfg
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yapf_style = dict(
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based_on_style="pep8",
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blank_line_before_nested_class_or_def=True,
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split_before_expression_after_opening_paren=True,
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)
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text, _ = FormatCode(text, style_config=yapf_style, verify=True)
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return text
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def __repr__(self):
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return f"Config (path: {self.filename}): {self._cfg_dict.__repr__()}"
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def __len__(self):
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return len(self._cfg_dict)
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def __getattr__(self, name):
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# # debug
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# print('+'*15)
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# print('name=%s' % name)
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# print("addr:", id(self))
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# # print('type(self):', type(self))
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# print(self.__dict__)
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# print('+'*15)
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# if self.__dict__ == {}:
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# raise ValueError
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return getattr(self._cfg_dict, name)
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def __getitem__(self, name):
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return self._cfg_dict.__getitem__(name)
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def __setattr__(self, name, value):
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if isinstance(value, dict):
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value = ConfigDict(value)
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self._cfg_dict.__setattr__(name, value)
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def __setitem__(self, name, value):
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if isinstance(value, dict):
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value = ConfigDict(value)
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self._cfg_dict.__setitem__(name, value)
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def __iter__(self):
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return iter(self._cfg_dict)
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def dump(self, file=None):
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# import ipdb; ipdb.set_trace()
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if file is None:
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return self.pretty_text
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else:
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with open(file, "w") as f:
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f.write(self.pretty_text)
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def merge_from_dict(self, options):
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"""Merge list into cfg_dict
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Merge the dict parsed by MultipleKVAction into this cfg.
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Examples:
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>>> options = {'model.backbone.depth': 50,
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... 'model.backbone.with_cp':True}
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>>> cfg = Config(dict(model=dict(backbone=dict(type='ResNet'))))
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>>> cfg.merge_from_dict(options)
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>>> cfg_dict = super(Config, self).__getattribute__('_cfg_dict')
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>>> assert cfg_dict == dict(
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... model=dict(backbone=dict(depth=50, with_cp=True)))
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Args:
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options (dict): dict of configs to merge from.
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"""
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option_cfg_dict = {}
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for full_key, v in options.items():
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d = option_cfg_dict
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key_list = full_key.split(".")
|
||
|
|
for subkey in key_list[:-1]:
|
||
|
|
d.setdefault(subkey, ConfigDict())
|
||
|
|
d = d[subkey]
|
||
|
|
subkey = key_list[-1]
|
||
|
|
d[subkey] = v
|
||
|
|
|
||
|
|
cfg_dict = super(SLConfig, self).__getattribute__("_cfg_dict")
|
||
|
|
super(SLConfig, self).__setattr__(
|
||
|
|
"_cfg_dict", SLConfig._merge_a_into_b(option_cfg_dict, cfg_dict)
|
||
|
|
)
|
||
|
|
|
||
|
|
# for multiprocess
|
||
|
|
def __setstate__(self, state):
|
||
|
|
self.__init__(state)
|
||
|
|
|
||
|
|
def copy(self):
|
||
|
|
return SLConfig(self._cfg_dict.copy())
|
||
|
|
|
||
|
|
def deepcopy(self):
|
||
|
|
return SLConfig(self._cfg_dict.deepcopy())
|
||
|
|
|
||
|
|
|
||
|
|
class DictAction(Action):
|
||
|
|
"""
|
||
|
|
argparse action to split an argument into KEY=VALUE form
|
||
|
|
on the first = and append to a dictionary. List options should
|
||
|
|
be passed as comma separated values, i.e KEY=V1,V2,V3
|
||
|
|
"""
|
||
|
|
|
||
|
|
@staticmethod
|
||
|
|
def _parse_int_float_bool(val):
|
||
|
|
try:
|
||
|
|
return int(val)
|
||
|
|
except ValueError:
|
||
|
|
pass
|
||
|
|
try:
|
||
|
|
return float(val)
|
||
|
|
except ValueError:
|
||
|
|
pass
|
||
|
|
if val.lower() in ["true", "false"]:
|
||
|
|
return True if val.lower() == "true" else False
|
||
|
|
if val.lower() in ["none", "null"]:
|
||
|
|
return None
|
||
|
|
return val
|
||
|
|
|
||
|
|
def __call__(self, parser, namespace, values, option_string=None):
|
||
|
|
options = {}
|
||
|
|
for kv in values:
|
||
|
|
key, val = kv.split("=", maxsplit=1)
|
||
|
|
val = [self._parse_int_float_bool(v) for v in val.split(",")]
|
||
|
|
if len(val) == 1:
|
||
|
|
val = val[0]
|
||
|
|
options[key] = val
|
||
|
|
setattr(namespace, self.dest, options)
|