# Copyright 2023 Huawei Technologies Co., Ltd
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
# ============================================================================
"""mindir utility."""
from __future__ import absolute_import
import os
import stat
from mindspore import log as logger
from mindspore import _checkparam as Validator
from mindspore.train.mind_ir_pb2 import ModelProto as mindir_model
[文档]def load_mindir(file_name):
"""
load protobuf file.
Args:
file_name (str): File name.
Returns:
ModelProto, mindir proto object.
Raises:
ValueError: The file does not exist or the file name format is incorrect.
Supported Platforms:
``Ascend`` ``GPU`` ``CPU``
Examples:
>>> import mindspore as ms
>>> md = ms.load_mindir("test.mindir")
"""
Validator.check_file_name_by_regular(file_name)
file_name = os.path.realpath(file_name)
model = mindir_model()
try:
with open(file_name, "rb") as f:
pb_content = f.read()
model.ParseFromString(pb_content)
except BaseException as e:
logger.critical(f"Failed to parse the file: {file_name} "
f" please check the correct file.")
raise ValueError(e.__str__()) from e
finally:
pass
return model
[文档]def save_mindir(model, file_name):
"""
save protobuf file.
Args:
model (ModelProto): mindir model
file_name (str): File name.
Raises:
TypeError: The argument `model` is not a ModelProto object.
ValueError: The file path does not exist or the `file_name` format is incorrect.
Supported Platforms:
``Ascend`` ``GPU`` ``CPU``
Examples:
>>> import mindspore as ms
>>> md = ms.load_mindir("test.mindir")
>>> md.user_info["version"]="pangu v100"
>>> ms.save_mindir(md,"test_new.mindir")
>>> md_new = ms.load_mindir("test_new.mindir")
>>> md_new.user_info
"""
Validator.check_file_name_by_regular(file_name)
file_name = os.path.realpath(file_name)
if not file_name.endswith('.mindir'):
file_name += ".mindir"
current_path = os.path.abspath(file_name)
dirname = os.path.dirname(current_path)
os.makedirs(dirname, exist_ok=True)
if os.path.exists(file_name):
os.chmod(file_name, stat.S_IWUSR)
if not isinstance(model, mindir_model):
raise TypeError("For 'save_mindir', the argument 'model' must be ModelProto, "
"but got {}.".format(type(model)))
try:
with os.fdopen(os.open(file_name, os.O_WRONLY | os.O_CREAT | os.O_TRUNC, 0o600), "wb") as f:
f.write(model.SerializeToString())
except BaseException as e:
logger.critical(f"Failed to save the file: {file_name} ,"
f" please check the correct file.")
raise ValueError(e.__str__()) from e
finally:
if os.path.exists(file_name):
os.chmod(file_name, stat.S_IRUSR)