forked from M-Labs/artiq
48 lines
1.2 KiB
Python
Executable File
48 lines
1.2 KiB
Python
Executable File
#!/usr/bin/env python3.5
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import argparse
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import struct
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def get_argparser():
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parser = argparse.ArgumentParser(description="ARTIQ flash storage image generator")
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parser.add_argument("output", help="output file")
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parser.add_argument("-s", nargs=2, action="append", default=[],
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metavar=("KEY", "STRING"),
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help="add string")
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parser.add_argument("-f", nargs=2, action="append", default=[],
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metavar=("KEY", "FILENAME"),
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help="add file contents")
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return parser
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def write_record(f, key, value):
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key_size = len(key) + 1
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value_size = len(value)
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record_size = key_size + value_size + 4
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f.write(struct.pack(">l", record_size))
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f.write(key.encode())
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f.write(b"\x00")
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f.write(value)
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def write_end_marker(f):
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f.write(b"\xff\xff\xff\xff")
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def main():
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args = get_argparser().parse_args()
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with open(args.output, "wb") as fo:
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for key, string in args.s:
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write_record(fo, key, string.encode())
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for key, filename in args.f:
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with open(filename, "rb") as fi:
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write_record(fo, key, fi.read())
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write_end_marker(fo)
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if __name__ == "__main__":
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main()
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