mirror of
https://github.com/checkpoint-restore/criu
synced 2025-08-31 14:25:49 +00:00
dbda403b8d
Signed-off-by: Pavel Emelyanov <xemul@parallels.com> Acked-by: Andrew Vagin <avagin@virtuozzo.com>
82 lines
2.0 KiB
Python
Executable File
82 lines
2.0 KiB
Python
Executable File
#!/usr/bin/env python
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import argparse
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import sys
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import json
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import pycriu
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def inf(opts):
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if opts['in']:
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return open(opts['in'], 'r')
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else:
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return sys.stdin
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def outf(opts):
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if opts['out']:
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return open(opts['out'], 'w+')
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else:
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return sys.stdout
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def decode(opts):
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indent = None
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try:
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img = pycriu.images.load(inf(opts), opts['pretty'])
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except pycriu.images.MagicException as exc:
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print >>sys.stderr, "Unknown magic %#x.\n"\
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"Maybe you are feeding me an image with "\
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"raw data(i.e. pages.img)?" % exc.magic
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sys.exit(1)
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if opts['pretty']:
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indent = 4
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f = outf(opts)
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json.dump(img, f, indent=indent)
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if f == sys.stdout:
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f.write("\n")
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def encode(opts):
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img = json.load(inf(opts))
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pycriu.images.dump(img, outf(opts))
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def main():
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desc = 'CRiu Image Tool'
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parser = argparse.ArgumentParser(description=desc,
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formatter_class=argparse.RawTextHelpFormatter)
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subparsers = parser.add_subparsers(help='Use crit CMD --help for command-specific help')
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# Decode
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decode_parser = subparsers.add_parser('decode',
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help = 'convert criu image from binary type json')
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decode_parser.add_argument('--pretty',
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help = 'Multiline with indents and some numerical fields in field-specific format',
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action = 'store_true')
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decode_parser.add_argument('-i',
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'--in',
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help = 'criu image in binary format to be decoded (stdin by default)')
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decode_parser.add_argument('-o',
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'--out',
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help = 'where to put criu image in json format (stdout by default)')
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decode_parser.set_defaults(func=decode)
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# Encode
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encode_parser = subparsers.add_parser('encode',
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help = 'convert criu image from json type to binary')
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encode_parser.add_argument('-i',
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'--in',
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help = 'criu image in json format to be encoded (stdin by default)')
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encode_parser.add_argument('-o',
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'--out',
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help = 'where to put criu image in binary format (stdout by default)')
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encode_parser.set_defaults(func=encode)
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opts = vars(parser.parse_args())
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opts["func"](opts)
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if __name__ == '__main__':
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main()
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