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Rev 3028 Rev 3046
Line 40... Line 40...
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def usage(prname):
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def usage(prname):
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    "Print usage syntax"
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    "Print usage syntax"
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    print prname + " <ALIGNMENT> <PATH> <IMAGE>"
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    print prname + " <ALIGNMENT> <PATH> <IMAGE>"
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- 
 
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def recursion(root, outf):
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    "Recursive directory walk"
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    payload_size = 0
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    for name in os.listdir(root):
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        canon = os.path.join(root, name)
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        if (os.path.isfile(canon)):
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            outf.write(struct.pack("<BL" + ("%d" % len(name)) + "s", 1, len(name), name))
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            payload_size += 5 + len(name)
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            size = os.path.getsize(canon)
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            rd = 0;
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            outf.write(struct.pack("<L", size))
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            payload_size += 4
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            inf = file(canon, "r")
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            while (rd < size):
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                data = inf.read(4096);
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                outf.write(data)
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                payload_size += len(data)
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                rd += len(data)
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            inf.close()
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        if (os.path.isdir(canon)):
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            outf.write(struct.pack("<BL" + ("%d" % len(name)) + "s", 2, len(name), name))
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            payload_size += 5 + len(name)
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            payload_size += recursion(canon, outf)
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            outf.write(struct.pack("<BL", 0, 0))
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            payload_size += 5
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    return payload_size
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def main():
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def main():
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    if (len(sys.argv) < 4):
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    if (len(sys.argv) < 4):
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        usage(sys.argv[0])
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        usage(sys.argv[0])
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        return
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        return
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Line 56... Line 89...
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    if (not os.path.isdir(path)):
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    if (not os.path.isdir(path)):
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        print "<PATH> must be a directory"
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        print "<PATH> must be a directory"
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        return
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        return
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    header_size = align_up(18, align)
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    header_size = align_up(18, align)
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    payload_size = 0
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    outf = file(sys.argv[3], "w")
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    outf = file(sys.argv[3], "w")
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    outf.write(struct.pack("<" + ("%d" % header_size) + "x"))
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    outf.write(struct.pack("<" + ("%d" % header_size) + "x"))
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    for root, dirs, files in os.walk(path):
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        relpath = root[len(path):len(root)]
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        for name in files:
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            canon = os.path.join(relpath, name)
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            outf.write(struct.pack("<BL" + ("%d" % len(canon)) + "s", 1, len(canon), canon))
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            payload_size += 5 + len(canon)
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            fn = os.path.join(root, name)
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            size = os.path.getsize(fn)
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            rd = 0;
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            outf.write(struct.pack("<L", size))
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    outf.write(struct.pack("<5s", "TMPFS"))
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            payload_size += 4
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    payload_size = 5
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            inf = file(fn, "r")
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            while (rd < size):
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                data = inf.read(4096);
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                outf.write(data)
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                payload_size += len(data)
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    payload_size += recursion(path, outf)
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                rd += len(data)
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            inf.close()
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        for name in dirs:
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            canon = os.path.join(relpath, name)
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            outf.write(struct.pack("<BL" + ("%d" % len(canon)) + "s", 2, len(canon), canon))
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    outf.write(struct.pack("<BL", 0, 0))
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            payload_size += 5 + len(canon)
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    payload_size += 5
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    aligned_size = align_up(payload_size, align)
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    aligned_size = align_up(payload_size, align)
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    if (aligned_size - payload_size > 0):
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    if (aligned_size - payload_size > 0):
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        outf.write(struct.pack("<" + ("%d" % (aligned_size - payload_size)) + "x"))
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        outf.write(struct.pack("<" + ("%d" % (aligned_size - payload_size)) + "x"))
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    outf.seek(0)
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    outf.seek(0)
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    outf.write(struct.pack("<4sBBLQ", "HORD", 1, 1, header_size, aligned_size))
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    outf.write(struct.pack("<4sBBLQ", "HORD", 1, 1, header_size, aligned_size))
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    outf.close()
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    outf.close()
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if __name__ == '__main__':
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if __name__ == '__main__':