84 lines
2.3 KiB
Python
84 lines
2.3 KiB
Python
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#!/usr/bin/env python
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#
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# generates an empty binary file
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#
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# This tool generates an empty binary file of the required size.
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#
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# Copyright 2018 Espressif Systems (Shanghai) PTE 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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from __future__ import print_function, division
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import argparse
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import os
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import re
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import struct
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import sys
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import hashlib
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import binascii
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__version__ = '1.0'
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quiet = False
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def status(msg):
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""" Print status message to stderr """
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if not quiet:
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critical(msg)
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def critical(msg):
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""" Print critical message to stderr """
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if not quiet:
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sys.stderr.write(msg)
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sys.stderr.write('\n')
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def generate_blanked_file(size, output_path):
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output = ""
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for i in range(size):
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output += b"\xFF"
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try:
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stdout_binary = sys.stdout.buffer # Python 3
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except AttributeError:
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stdout_binary = sys.stdout
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with stdout_binary if output_path == '-' else open(output_path, 'wb') as f:
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f.write(output)
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def main():
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global quiet
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parser = argparse.ArgumentParser(description='Generates an empty binary file of the required size.')
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parser.add_argument('--quiet', '-q', help="Don't print status messages to stderr", action='store_true')
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parser.add_argument('--size', help='Size of generated the file', type=str, required=True)
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parser.add_argument('output', help='Path for binary file.', nargs='?', default='-')
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args = parser.parse_args()
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quiet = args.quiet
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size = int(args.size, 0)
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if size > 0 :
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generate_blanked_file(size, args.output)
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return 0
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class InputError(RuntimeError):
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def __init__(self, e):
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super(InputError, self).__init__(e)
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if __name__ == '__main__':
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try:
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r = main()
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sys.exit(r)
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except InputError as e:
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print(e, file=sys.stderr)
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sys.exit(2)
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