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nesdir_export.py
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nesdir_export.py
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import collections
import os
import pickle
import sys
from xml.etree import ElementTree
import common
# Example File:
# <?xml version="1.0" encoding="utf-16"?>
# <database version="1.0" conformance="strict" agent="NesCartDB" author="BootGod" timestamp="Mon Aug 21 23:55:50 2017">
# <game name="Battletoads" class="Licensed" catalog="NES-8T-USA" publisher="Tradewest" developer="Rare" region="USA" players="2" date="1991-06">
# <cartridge system="NES-NTSC" crc="279710DC" sha1="D85C9FF489672534FBF61A15F8FA56FFF489A34B" dump="ok" dumper="bootgod" datedumped="2005-09-21">
# <board type="NES-AOROM" pcb="NES-AOROM-03" mapper="7">
# <prg name="NES-8T-0 PRG" size="256k" crc="279710DC" sha1="D85C9FF489672534FBF61A15F8FA56FFF489A34B"/>
# <vram size="8k"/>
# <chip type="74xx161"/>
# <cic type="6113B1"/>
# </board>
# </cartridge>
# </game>
# </database>
def xml_to_dict(xml_filename):
games_by_sha1 = {}
tree = ElementTree.parse(xml_filename)
root = tree.getroot()
for child in root:
if child.tag == 'game':
name = child.attrib['name'] + '_noheader.bin'
for t in child:
if t.tag == 'cartridge':
a = t.attrib
size_bytes = -1 # TODO: Sum PRG, CHR. int(a['size'])
md5 = ''# TODO: MD5 not available in this dataset.
# TODO: Break out chr/prg hashes to support partial backups.
g = common.Game(filename=name, size=size_bytes, crc=a['crc'],
md5=md5, sha1=a['sha1'])
games_by_sha1[g.sha1] = g
return games_by_sha1
def main(argv):
if len(argv) != 2:
print('Usage: python3 %s xml_filename' % argv[0])
return 1
games_by_sha1 = xml_to_dict(argv[1])
game_count = len(games_by_sha1)
print("%d Games read from file." % game_count)
file_base, _ = os.path.splitext(os.path.basename(argv[1]))
out_file = file_base + '.p'
pickle.dump(games_by_sha1, open(out_file, "wb"))
print("Dictionary written to %s\n" % out_file)
if __name__ == '__main__':
main(sys.argv)