| 0,0 → 1,101 |
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| #!/usr/bin/env python |
| # |
| # Copyright (c) 2008 Martin Decky |
| # All rights reserved. |
| # |
| # Redistribution and use in source and binary forms, with or without |
| # modification, are permitted provided that the following conditions |
| # are met: |
| # |
| # - Redistributions of source code must retain the above copyright |
| # notice, this list of conditions and the following disclaimer. |
| # - Redistributions in binary form must reproduce the above copyright |
| # notice, this list of conditions and the following disclaimer in the |
| # documentation and/or other materials provided with the distribution. |
| # - The name of the author may not be used to endorse or promote products |
| # derived from this software without specific prior written permission. |
| # |
| # THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
| # IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
| # OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
| # IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
| # INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
| # NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| # DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| # THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| # (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
| # THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| # |
| """ |
| TMPFS creator |
| """ |
| |
| import sys |
| import os |
| import struct |
| |
| def align_up(size, alignment): |
| "Align upwards to a given alignment" |
| return (((size) + ((alignment) - 1)) & ~((alignment) - 1)) |
| |
| def usage(prname): |
| "Print usage syntax" |
| print prname + " <ALIGNMENT> <PATH> <IMAGE>" |
| |
| def main(): |
| if (len(sys.argv) < 4): |
| usage(sys.argv[0]) |
| return |
| |
| if (not sys.argv[1].isdigit()): |
| print "<ALIGNMENT> must be a number" |
| return |
| |
| align = int(sys.argv[1], 0) |
| path = os.path.abspath(sys.argv[2]) |
| if (not os.path.isdir(path)): |
| print "<PATH> must be a directory" |
| return |
| |
| header_size = align_up(18, align) |
| payload_size = 0 |
| outf = file(sys.argv[3], "w") |
| outf.write(struct.pack("<" + ("%d" % header_size) + "x")) |
| |
| for root, dirs, files in os.walk(path): |
| relpath = root[len(path):len(root)] |
| for name in files: |
| canon = os.path.join(relpath, name) |
| outf.write(struct.pack("<BL" + ("%d" % len(canon)) + "s", 1, len(canon), canon)) |
| payload_size += 5 + len(canon) |
| |
| fn = os.path.join(root, name) |
| size = os.path.getsize(fn) |
| rd = 0; |
| outf.write(struct.pack("<L", size)) |
| payload_size += 4 |
| |
| inf = file(fn, "r") |
| while (rd < size): |
| data = inf.read(4096); |
| outf.write(data) |
| payload_size += len(data) |
| rd += len(data) |
| inf.close() |
| |
| for name in dirs: |
| canon = os.path.join(relpath, name) |
| outf.write(struct.pack("<BL" + ("%d" % len(canon)) + "s", 2, len(canon), canon)) |
| payload_size += 5 + len(canon) |
| |
| aligned_size = align_up(payload_size, align) |
| |
| if (aligned_size - payload_size > 0): |
| outf.write(struct.pack("<" + ("%d" % (aligned_size - payload_size)) + "x")) |
| |
| outf.seek(0) |
| outf.write(struct.pack("<4sBBLQ", "HORD", 1, 1, header_size, aligned_size)) |
| outf.close() |
| |
| if __name__ == '__main__': |
| main() |
| Property changes: |
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| Added: svn:executable |
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| +* |
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| \ No newline at end of property |
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