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113 lines
3.5 KiB
113 lines
3.5 KiB
# Copyright 2020 Huawei Technologies Co., Ltd
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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# ============================================================================
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"""Some utils."""
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import hashlib
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import logging
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import os
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import inspect
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from functools import wraps
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from dataclasses import dataclass
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def cal_sha256(file_path):
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"""
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Calculate sha256 value of input file.
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Args:
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file_path (str): file path to calculate.
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Returns:
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str, returns sha256 value of input file or empty str if cal failed.
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"""
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buf_size = 64 * 1024 # once read 64kb
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sha256 = hashlib.sha256()
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file_real_path = os.path.realpath(file_path)
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if not os.path.isfile(file_real_path) or not os.access(file_real_path, os.R_OK):
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return ""
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_, extension = os.path.splitext(file_path)
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try:
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if extension == '.ptx':
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with open(file_real_path, 'r') as kf:
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while True:
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data = kf.read(buf_size)
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if not data:
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break
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sha256.update(data.encode("utf-8"))
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else:
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with open(file_real_path, 'rb') as kf:
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while True:
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data = kf.read(buf_size)
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if not data:
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break
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sha256.update(data)
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except IOError:
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logging.error("Open file %s failed.", file_path)
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return ""
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return sha256.hexdigest()
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def cell_attr_register(fn=None, attrs=None):
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"""
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Cell init attributes register.
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Registering the decorator of the built-in operator cell __init__
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function will add save all the parameters of __init__ as operator attributes.
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Args:
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fn (function): __init__ function of cell.
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attrs (list(string) | string): attr list.
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Returns:
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function, original function.
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"""
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def wrap_cell(fn):
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@wraps(fn)
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def deco(self, *args, **kwargs):
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arguments = []
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if attrs is None:
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bound_args = inspect.signature(fn).bind(self, *args, **kwargs)
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arguments = bound_args.arguments
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del arguments['self']
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arguments = arguments.values()
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fn(self, *args, **kwargs)
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if attrs is not None:
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if isinstance(attrs, list):
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for item in attrs:
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if not isinstance(item, str):
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raise ValueError(f"attr must be a string")
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if hasattr(self, item):
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arguments.append(getattr(self, item))
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elif isinstance(attrs, str):
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if hasattr(self, attrs):
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arguments = getattr(self, attrs)
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else:
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raise ValueError(f"attrs must be list or string")
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self.cell_init_args = type(self).__name__ + str(arguments)
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return deco
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if fn is not None:
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return wrap_cell(fn)
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return wrap_cell
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@dataclass
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class Slice:
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"""
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Slice class
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"""
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start: int
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end: int
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step: int
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