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  1. #!/usr/bin/env python
  2. #
  3. # Copyright (c) 2008 Martin Decky
  4. # All rights reserved.
  5. #
  6. # Redistribution and use in source and binary forms, with or without
  7. # modification, are permitted provided that the following conditions
  8. # are met:
  9. #
  10. # - Redistributions of source code must retain the above copyright
  11. #   notice, this list of conditions and the following disclaimer.
  12. # - Redistributions in binary form must reproduce the above copyright
  13. #   notice, this list of conditions and the following disclaimer in the
  14. #   documentation and/or other materials provided with the distribution.
  15. # - The name of the author may not be used to endorse or promote products
  16. #   derived from this software without specific prior written permission.
  17. #
  18. # THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
  19. # IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  20. # OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  21. # IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
  22. # INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  23. # NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  24. # DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  25. # THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  26. # (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  27. # THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  28. #
  29. """
  30. TMPFS creator
  31. """
  32.  
  33. import sys
  34. import os
  35. import struct
  36.  
  37. def usage(prname):
  38.     "Print usage syntax"
  39.     print prname + " <PATH> <IMAGE>"
  40.  
  41. def main():
  42.     if (len(sys.argv) < 3):
  43.         usage(sys.argv[0])
  44.         return
  45.    
  46.     path = os.path.abspath(sys.argv[1]);
  47.     if (not os.path.isdir(path)):
  48.         print "<PATH> must be a directory"
  49.         return
  50.    
  51.     header_size = 18
  52.     payload_size = 0
  53.     outf = file(sys.argv[2], "w")
  54.     outf.write(struct.pack("<" + ("%d" % header_size) + "x"))
  55.    
  56.     for root, dirs, files in os.walk(path):
  57.         relpath = root[len(path):len(root)]
  58.         for name in files:
  59.             canon = os.path.join(relpath, name)
  60.             outf.write(struct.pack("<BL" + ("%d" % len(canon)) + "s", 1, len(canon), canon))
  61.             payload_size += 5 + len(canon)
  62.            
  63.             fn = os.path.join(root, name)
  64.             size = os.path.getsize(fn)
  65.             rd = 0;
  66.             outf.write(struct.pack("<L", size))
  67.             payload_size += 4
  68.            
  69.             inf = file(fn, "r")
  70.             while (rd < size):
  71.                 data = inf.read(4096);
  72.                 outf.write(data)
  73.                 payload_size += len(data)
  74.                 rd += len(data)
  75.             inf.close()
  76.        
  77.         for name in dirs:
  78.             canon = os.path.join(relpath, name)
  79.             outf.write(struct.pack("<BL" + ("%d" % len(canon)) + "s", 2, len(canon), canon))
  80.             payload_size += 5 + len(canon)
  81.    
  82.     outf.seek(0)
  83.     outf.write(struct.pack("<4sBBLQ", "HORD", 1, 1, header_size, payload_size))
  84.     outf.close()
  85.  
  86. if __name__ == '__main__':
  87.     main()
  88.