ekko/ekko/image/_drivers/raw.py

30 lines
969 B
Python

# Copyright 2016 Sam Yaple
#
# 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.
from ekko.image import drivers
class RawImage(drivers.BaseImage):
def get_data(self, reads):
with open(self.image_location, 'rb') as f:
for start, size in reads:
f.seek(start, 0)
yield (start, f.read(size))
def get_size(self):
with open(self.image_location, 'rb') as f:
f.seek(0, 2)
return f.tell()