135 lines
4.9 KiB
Python
135 lines
4.9 KiB
Python
import argparse
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from collections import OrderedDict
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import glob
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import os
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import shutil
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from construct import *
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from tqdm import tqdm
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setglobalstringencoding(None)
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ScrapFile = Struct(
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'path'/PascalString(Int32ul),
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'size'/Int32ul,
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'offset'/Int32ul,
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'data'/OnDemandPointer(this.offset,Bytes(this.size)),
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)
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DummyFile = Struct(
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'path'/PascalString(Int32ul),
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'size'/Int32ul,
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'offset'/Int32ul,
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)
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PackedHeader = Struct(
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Const(b'BFPK'),
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Const(b'\0\0\0\0'),
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'files'/PrefixedArray(Int32ul,ScrapFile),
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)
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DummyHeader = Struct(
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Const(b'BFPK'),
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Const(b'\0\0\0\0'),
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'files'/PrefixedArray(Int32ul,DummyFile),
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)
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parser = argparse.ArgumentParser(description='Unpack and Repack .packed files')
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parser.add_argument('-u', '--unpack', action='store_true',
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help='unpack file to \'extracted\' directory')
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parser.add_argument('-r', '--repack', action='store_true',
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help='repack file from \'extracted\' directory')
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parser.add_argument(
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'--reset',
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action='store_true',
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default=False,
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help='restore backup')
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parser.add_argument(
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'scrap_dir',
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metavar='Scrapland Directory',
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type=str,
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default=".",
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help='Scrapland installation directory')
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options = parser.parse_args()
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scrap_dir = os.path.abspath(options.scrap_dir)
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if options.reset:
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print('Restoring Backups and removing extracted folder...')
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for packed_file in glob.glob(os.path.join(scrap_dir, '*.packed.bak')):
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outfile = os.path.basename(packed_file)
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orig_filename = outfile[:-4]
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if os.path.isfile(outfile):
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print('deleting', orig_filename)
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os.remove(orig_filename)
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print('moving', outfile, '->', orig_filename)
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shutil.move(outfile, orig_filename)
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target_folder = os.path.join(
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'extracted', os.path.basename(orig_filename))
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print('deleting', target_folder)
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shutil.rmtree(target_folder)
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if os.path.isdir('extracted'):
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input('Press enter to remove rest of extracted folder')
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shutil.rmtree('extracted')
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exit('Done!')
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if not (options.unpack or options.repack):
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parser.print_help()
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exit()
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pstatus = ''
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if options.unpack:
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if os.path.isdir('extracted'):
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print("Removing extracted folder")
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shutil.rmtree('extracted')
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for packed_file in glob.glob(os.path.join(scrap_dir, '*.packed')):
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os.chdir(scrap_dir)
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BN=os.path.basename(packed_file)
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target_folder = os.path.join(
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'extracted', os.path.basename(packed_file))
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os.makedirs(target_folder, exist_ok=True)
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os.chdir(target_folder)
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print('Unpacking {}'.format(os.path.basename(packed_file)))
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with open(packed_file, 'rb') as pkfile:
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data = PackedHeader.parse_stream(pkfile)
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print("Offset:",hex(pkfile.tell()))
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for file in tqdm(data.files,ascii=True):
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folder, filename = os.path.split(file.path)
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if folder:
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os.makedirs(folder, exist_ok=True)
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with open(file.path, 'wb') as outfile:
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outfile.write(file.data())
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print('\r' + ' ' * len(pstatus) + '\r', end='', flush=True)
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os.chdir(scrap_dir)
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if (options.unpack and options.repack):
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input('Press enter to rebuild *.packed files from folders in \'extracted\' dir...') # noqa
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pass
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def file_gen(files,offset=0):
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for real_path,size,path in files:
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file=dict(
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path=path,
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offset=offset,
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size=size)
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yield file
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offset+=file['size']
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def make_header(files,offset=0):
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files_list=list(file_gen(files,offset))
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return DummyHeader.build(dict(files=files_list))
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if options.repack:
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for folder in glob.glob(os.path.join(scrap_dir, 'extracted', '*.packed')):
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data=[]
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filename=os.path.join(scrap_dir,os.path.basename(folder))
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for root,folders,files in os.walk(folder):
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for file in sorted(files):
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file=os.path.join(root,file)
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rel_path=bytes(file.replace(folder, '').replace('\\', '/').lstrip('/'), 'windows-1252')
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size=os.stat(file).st_size
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data.append((file,size,rel_path))
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print("Found {} files for {}".format(len(data),filename))
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offset=len(make_header(data))
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print("Writing",filename)
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header=make_header(data,offset)
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with open(filename,"wb") as outfile:
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outfile.write(header)
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for file,size,rel_path in tqdm(data,ascii=True):
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outfile.write(open(file,"rb").read())
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print('Done!')
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